* [RFC PATCH 0/3] add user friendly date range search
@ 2011-08-10 10:22 Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 1/3] Import date/time parser from GNU coreutils Jani Nikula
` (3 more replies)
0 siblings, 4 replies; 8+ messages in thread
From: Jani Nikula @ 2011-08-10 10:22 UTC (permalink / raw)
To: notmuch; +Cc: amdragon
Hi, this RFC series adds user friendly date range searches in notmuch.
Patches 1 and 2 add the date/time parser from coreutils, and were posted to
the list by Michal Sojka in January [1]. I picked them up from the
date-parser branch of the git tree at [2]. These worked without
modifications, so I didn't touch them.
Patch 3 adds the actual date range searches on top of current
master. Michal also posted a date search implementation, but it was based
on Austin Clements' custom parser patches, which I haven't looked at. Also,
this one uses date: range syntax rather than before: and after:, and I
think Michal would agree on this one [3].
If the same parser is to be eventually included in notmuch, I'd prefer
using the parse-datetime module [3] (get_date() was renamed) directly from
gnulib [4], instead of coreutils or elsewhere that just imports from
gnulib. Also, I think the gnulib module should be placed in a subdirectory
rather than alongside all the notmuch lib files. However there are some
complications in using parse-datetime, as gnulib modules heavily rely on
autotools. Perhaps one option would be to build a separate library with
autotools that has what we need from gnulib?
Anyway, this is here now, and works (well, with caveats outlined in the
commit message for patch 3) so that people can try this and get a feel of
the date range search. I wouldn't put much efforts to cleanly importing
gnulib before there's some guarantee that the syntax and semantics are
desired in the first place.
Personally, I've been happy with it ever since I got used to the semantics
of the parser.
BR,
Jani.
[1] http://notmuchmail.org/pipermail/notmuch/2011/003749.html
[2] git://rtime.felk.cvut.cz/notmuch.git
[3] http://notmuchmail.org/pipermail/notmuch/2011/004096.html
[4] http://www.gnu.org/s/gnulib/MODULES.html#module=parse-datetime
[3] http://www.gnu.org/s/gnulib/
Jani Nikula (1):
lib: add gnulib get_date() based date range search
Michal Sojka (2):
Import date/time parser from GNU coreutils
Compile the date/time parser into notmuch library
Makefile.local | 3 +
configure | 8 +
lib/Makefile.local | 6 +-
lib/c-ctype.c | 398 ++++++
lib/c-ctype.h | 297 ++++
lib/config.h | 45 +
lib/database-private.h | 1 +
lib/database.cc | 4 +
lib/getdate-proc.cc | 32 +
lib/getdate-proc.h | 21 +
lib/getdate.c | 3506 ++++++++++++++++++++++++++++++++++++++++++++++++
lib/getdate.h | 31 +
lib/getdate.y | 1581 ++++++++++++++++++++++
lib/gettime.c | 48 +
lib/intprops.h | 83 ++
lib/timespec.h | 39 +
lib/verify.h | 140 ++
17 files changed, 6242 insertions(+), 1 deletions(-)
create mode 100644 lib/c-ctype.c
create mode 100644 lib/c-ctype.h
create mode 100644 lib/config.h
create mode 100644 lib/getdate-proc.cc
create mode 100644 lib/getdate-proc.h
create mode 100644 lib/getdate.c
create mode 100644 lib/getdate.h
create mode 100644 lib/getdate.y
create mode 100644 lib/gettime.c
create mode 100644 lib/gettime.h
create mode 100644 lib/intprops.h
create mode 100644 lib/timespec.h
create mode 100644 lib/verify.h
^ permalink raw reply [flat|nested] 8+ messages in thread
* [RFC PATCH 1/3] Import date/time parser from GNU coreutils
2011-08-10 10:22 [RFC PATCH 0/3] add user friendly date range search Jani Nikula
@ 2011-08-10 10:22 ` Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 2/3] Compile the date/time parser into notmuch library Jani Nikula
` (2 subsequent siblings)
3 siblings, 0 replies; 8+ messages in thread
From: Jani Nikula @ 2011-08-10 10:22 UTC (permalink / raw)
To: notmuch; +Cc: amdragon
From: Michal Sojka <sojkam1@fel.cvut.cz>
This function have quite a lot dependencies. We may reduce them later it
it is a problem.
---
lib/c-ctype.c | 398 +++++++
lib/c-ctype.h | 297 +++++
lib/getdate.c | 3497 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
lib/getdate.h | 22 +
lib/getdate.y | 1572 +++++++++++++++++++++++++
lib/gettime.c | 48 +
lib/intprops.h | 83 ++
lib/timespec.h | 39 +
lib/verify.h | 140 +++
9 files changed, 6096 insertions(+), 0 deletions(-)
create mode 100644 lib/c-ctype.c
create mode 100644 lib/c-ctype.h
create mode 100644 lib/getdate.c
create mode 100644 lib/getdate.h
create mode 100644 lib/getdate.y
create mode 100644 lib/gettime.c
create mode 100644 lib/gettime.h
create mode 100644 lib/intprops.h
create mode 100644 lib/timespec.h
create mode 100644 lib/verify.h
diff --git a/lib/c-ctype.c b/lib/c-ctype.c
new file mode 100644
index 0000000..48baa72
--- /dev/null
+++ b/lib/c-ctype.c
@@ -0,0 +1,398 @@
+/* -*- buffer-read-only: t -*- vi: set ro: */
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Character handling in C locale.
+
+ Copyright 2000-2003, 2006, 2009-2010 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+
+/* Specification. */
+#define NO_C_CTYPE_MACROS
+#include "c-ctype.h"
+
+/* The function isascii is not locale dependent. Its use in EBCDIC is
+ questionable. */
+bool
+c_isascii (int c)
+{
+ return (c >= 0x00 && c <= 0x7f);
+}
+
+bool
+c_isalnum (int c)
+{
+#if C_CTYPE_CONSECUTIVE_DIGITS \
+ && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+ return ((c >= '0' && c <= '9')
+ || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'));
+#else
+ return ((c >= '0' && c <= '9')
+ || (c >= 'A' && c <= 'Z')
+ || (c >= 'a' && c <= 'z'));
+#endif
+#else
+ switch (c)
+ {
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isalpha (int c)
+{
+#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+ return ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z');
+#else
+ return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z'));
+#endif
+#else
+ switch (c)
+ {
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isblank (int c)
+{
+ return (c == ' ' || c == '\t');
+}
+
+bool
+c_iscntrl (int c)
+{
+#if C_CTYPE_ASCII
+ return ((c & ~0x1f) == 0 || c == 0x7f);
+#else
+ switch (c)
+ {
+ case ' ': case '!': case '"': case '#': case '$': case '%':
+ case '&': case '\'': case '(': case ')': case '*': case '+':
+ case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>': case '?':
+ case '@':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case '[': case '\\': case ']': case '^': case '_': case '`':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ case '{': case '|': case '}': case '~':
+ return 0;
+ default:
+ return 1;
+ }
+#endif
+}
+
+bool
+c_isdigit (int c)
+{
+#if C_CTYPE_CONSECUTIVE_DIGITS
+ return (c >= '0' && c <= '9');
+#else
+ switch (c)
+ {
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_islower (int c)
+{
+#if C_CTYPE_CONSECUTIVE_LOWERCASE
+ return (c >= 'a' && c <= 'z');
+#else
+ switch (c)
+ {
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isgraph (int c)
+{
+#if C_CTYPE_ASCII
+ return (c >= '!' && c <= '~');
+#else
+ switch (c)
+ {
+ case '!': case '"': case '#': case '$': case '%': case '&':
+ case '\'': case '(': case ')': case '*': case '+': case ',':
+ case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>': case '?':
+ case '@':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case '[': case '\\': case ']': case '^': case '_': case '`':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ case '{': case '|': case '}': case '~':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isprint (int c)
+{
+#if C_CTYPE_ASCII
+ return (c >= ' ' && c <= '~');
+#else
+ switch (c)
+ {
+ case ' ': case '!': case '"': case '#': case '$': case '%':
+ case '&': case '\'': case '(': case ')': case '*': case '+':
+ case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>': case '?':
+ case '@':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case '[': case '\\': case ']': case '^': case '_': case '`':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+ case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ case '{': case '|': case '}': case '~':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_ispunct (int c)
+{
+#if C_CTYPE_ASCII
+ return ((c >= '!' && c <= '~')
+ && !((c >= '0' && c <= '9')
+ || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z')));
+#else
+ switch (c)
+ {
+ case '!': case '"': case '#': case '$': case '%': case '&':
+ case '\'': case '(': case ')': case '*': case '+': case ',':
+ case '-': case '.': case '/':
+ case ':': case ';': case '<': case '=': case '>': case '?':
+ case '@':
+ case '[': case '\\': case ']': case '^': case '_': case '`':
+ case '{': case '|': case '}': case '~':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isspace (int c)
+{
+ return (c == ' ' || c == '\t'
+ || c == '\n' || c == '\v' || c == '\f' || c == '\r');
+}
+
+bool
+c_isupper (int c)
+{
+#if C_CTYPE_CONSECUTIVE_UPPERCASE
+ return (c >= 'A' && c <= 'Z');
+#else
+ switch (c)
+ {
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+bool
+c_isxdigit (int c)
+{
+#if C_CTYPE_CONSECUTIVE_DIGITS \
+ && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+ return ((c >= '0' && c <= '9')
+ || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'F'));
+#else
+ return ((c >= '0' && c <= '9')
+ || (c >= 'A' && c <= 'F')
+ || (c >= 'a' && c <= 'f'));
+#endif
+#else
+ switch (c)
+ {
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ return 1;
+ default:
+ return 0;
+ }
+#endif
+}
+
+int
+c_tolower (int c)
+{
+#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+ return (c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c);
+#else
+ switch (c)
+ {
+ case 'A': return 'a';
+ case 'B': return 'b';
+ case 'C': return 'c';
+ case 'D': return 'd';
+ case 'E': return 'e';
+ case 'F': return 'f';
+ case 'G': return 'g';
+ case 'H': return 'h';
+ case 'I': return 'i';
+ case 'J': return 'j';
+ case 'K': return 'k';
+ case 'L': return 'l';
+ case 'M': return 'm';
+ case 'N': return 'n';
+ case 'O': return 'o';
+ case 'P': return 'p';
+ case 'Q': return 'q';
+ case 'R': return 'r';
+ case 'S': return 's';
+ case 'T': return 't';
+ case 'U': return 'u';
+ case 'V': return 'v';
+ case 'W': return 'w';
+ case 'X': return 'x';
+ case 'Y': return 'y';
+ case 'Z': return 'z';
+ default: return c;
+ }
+#endif
+}
+
+int
+c_toupper (int c)
+{
+#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+ return (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c);
+#else
+ switch (c)
+ {
+ case 'a': return 'A';
+ case 'b': return 'B';
+ case 'c': return 'C';
+ case 'd': return 'D';
+ case 'e': return 'E';
+ case 'f': return 'F';
+ case 'g': return 'G';
+ case 'h': return 'H';
+ case 'i': return 'I';
+ case 'j': return 'J';
+ case 'k': return 'K';
+ case 'l': return 'L';
+ case 'm': return 'M';
+ case 'n': return 'N';
+ case 'o': return 'O';
+ case 'p': return 'P';
+ case 'q': return 'Q';
+ case 'r': return 'R';
+ case 's': return 'S';
+ case 't': return 'T';
+ case 'u': return 'U';
+ case 'v': return 'V';
+ case 'w': return 'W';
+ case 'x': return 'X';
+ case 'y': return 'Y';
+ case 'z': return 'Z';
+ default: return c;
+ }
+#endif
+}
diff --git a/lib/c-ctype.h b/lib/c-ctype.h
new file mode 100644
index 0000000..26c89b8
--- /dev/null
+++ b/lib/c-ctype.h
@@ -0,0 +1,297 @@
+/* -*- buffer-read-only: t -*- vi: set ro: */
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Character handling in C locale.
+
+ These functions work like the corresponding functions in <ctype.h>,
+ except that they have the C (POSIX) locale hardwired, whereas the
+ <ctype.h> functions' behaviour depends on the current locale set via
+ setlocale.
+
+ Copyright (C) 2000-2003, 2006, 2008-2010 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef C_CTYPE_H
+#define C_CTYPE_H
+
+#include <stdbool.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* The functions defined in this file assume the "C" locale and a character
+ set without diacritics (ASCII-US or EBCDIC-US or something like that).
+ Even if the "C" locale on a particular system is an extension of the ASCII
+ character set (like on BeOS, where it is UTF-8, or on AmigaOS, where it
+ is ISO-8859-1), the functions in this file recognize only the ASCII
+ characters. */
+
+
+/* Check whether the ASCII optimizations apply. */
+
+/* ANSI C89 (and ISO C99 5.2.1.3 too) already guarantees that
+ '0', '1', ..., '9' have consecutive integer values. */
+#define C_CTYPE_CONSECUTIVE_DIGITS 1
+
+#if ('A' <= 'Z') \
+ && ('A' + 1 == 'B') && ('B' + 1 == 'C') && ('C' + 1 == 'D') \
+ && ('D' + 1 == 'E') && ('E' + 1 == 'F') && ('F' + 1 == 'G') \
+ && ('G' + 1 == 'H') && ('H' + 1 == 'I') && ('I' + 1 == 'J') \
+ && ('J' + 1 == 'K') && ('K' + 1 == 'L') && ('L' + 1 == 'M') \
+ && ('M' + 1 == 'N') && ('N' + 1 == 'O') && ('O' + 1 == 'P') \
+ && ('P' + 1 == 'Q') && ('Q' + 1 == 'R') && ('R' + 1 == 'S') \
+ && ('S' + 1 == 'T') && ('T' + 1 == 'U') && ('U' + 1 == 'V') \
+ && ('V' + 1 == 'W') && ('W' + 1 == 'X') && ('X' + 1 == 'Y') \
+ && ('Y' + 1 == 'Z')
+#define C_CTYPE_CONSECUTIVE_UPPERCASE 1
+#endif
+
+#if ('a' <= 'z') \
+ && ('a' + 1 == 'b') && ('b' + 1 == 'c') && ('c' + 1 == 'd') \
+ && ('d' + 1 == 'e') && ('e' + 1 == 'f') && ('f' + 1 == 'g') \
+ && ('g' + 1 == 'h') && ('h' + 1 == 'i') && ('i' + 1 == 'j') \
+ && ('j' + 1 == 'k') && ('k' + 1 == 'l') && ('l' + 1 == 'm') \
+ && ('m' + 1 == 'n') && ('n' + 1 == 'o') && ('o' + 1 == 'p') \
+ && ('p' + 1 == 'q') && ('q' + 1 == 'r') && ('r' + 1 == 's') \
+ && ('s' + 1 == 't') && ('t' + 1 == 'u') && ('u' + 1 == 'v') \
+ && ('v' + 1 == 'w') && ('w' + 1 == 'x') && ('x' + 1 == 'y') \
+ && ('y' + 1 == 'z')
+#define C_CTYPE_CONSECUTIVE_LOWERCASE 1
+#endif
+
+#if (' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
+ && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
+ && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
+ && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
+ && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
+ && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
+ && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
+ && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
+ && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
+ && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
+ && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
+ && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
+ && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
+ && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
+ && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
+ && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
+ && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
+ && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
+ && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
+ && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
+ && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
+ && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
+ && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)
+/* The character set is ASCII or one of its variants or extensions, not EBCDIC.
+ Testing the value of '\n' and '\r' is not relevant. */
+#define C_CTYPE_ASCII 1
+#endif
+
+
+/* Function declarations. */
+
+/* Unlike the functions in <ctype.h>, which require an argument in the range
+ of the 'unsigned char' type, the functions here operate on values that are
+ in the 'unsigned char' range or in the 'char' range. In other words,
+ when you have a 'char' value, you need to cast it before using it as
+ argument to a <ctype.h> function:
+
+ const char *s = ...;
+ if (isalpha ((unsigned char) *s)) ...
+
+ but you don't need to cast it for the functions defined in this file:
+
+ const char *s = ...;
+ if (c_isalpha (*s)) ...
+ */
+
+extern bool c_isascii (int c); /* not locale dependent */
+
+extern bool c_isalnum (int c);
+extern bool c_isalpha (int c);
+extern bool c_isblank (int c);
+extern bool c_iscntrl (int c);
+extern bool c_isdigit (int c);
+extern bool c_islower (int c);
+extern bool c_isgraph (int c);
+extern bool c_isprint (int c);
+extern bool c_ispunct (int c);
+extern bool c_isspace (int c);
+extern bool c_isupper (int c);
+extern bool c_isxdigit (int c);
+
+extern int c_tolower (int c);
+extern int c_toupper (int c);
+
+
+#if defined __GNUC__ && defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ && !defined NO_C_CTYPE_MACROS
+
+/* ASCII optimizations. */
+
+#undef c_isascii
+#define c_isascii(c) \
+ ({ int __c = (c); \
+ (__c >= 0x00 && __c <= 0x7f); \
+ })
+
+#if C_CTYPE_CONSECUTIVE_DIGITS \
+ && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+#undef c_isalnum
+#define c_isalnum(c) \
+ ({ int __c = (c); \
+ ((__c >= '0' && __c <= '9') \
+ || ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'Z')); \
+ })
+#else
+#undef c_isalnum
+#define c_isalnum(c) \
+ ({ int __c = (c); \
+ ((__c >= '0' && __c <= '9') \
+ || (__c >= 'A' && __c <= 'Z') \
+ || (__c >= 'a' && __c <= 'z')); \
+ })
+#endif
+#endif
+
+#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+#undef c_isalpha
+#define c_isalpha(c) \
+ ({ int __c = (c); \
+ ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'Z'); \
+ })
+#else
+#undef c_isalpha
+#define c_isalpha(c) \
+ ({ int __c = (c); \
+ ((__c >= 'A' && __c <= 'Z') || (__c >= 'a' && __c <= 'z')); \
+ })
+#endif
+#endif
+
+#undef c_isblank
+#define c_isblank(c) \
+ ({ int __c = (c); \
+ (__c == ' ' || __c == '\t'); \
+ })
+
+#if C_CTYPE_ASCII
+#undef c_iscntrl
+#define c_iscntrl(c) \
+ ({ int __c = (c); \
+ ((__c & ~0x1f) == 0 || __c == 0x7f); \
+ })
+#endif
+
+#if C_CTYPE_CONSECUTIVE_DIGITS
+#undef c_isdigit
+#define c_isdigit(c) \
+ ({ int __c = (c); \
+ (__c >= '0' && __c <= '9'); \
+ })
+#endif
+
+#if C_CTYPE_CONSECUTIVE_LOWERCASE
+#undef c_islower
+#define c_islower(c) \
+ ({ int __c = (c); \
+ (__c >= 'a' && __c <= 'z'); \
+ })
+#endif
+
+#if C_CTYPE_ASCII
+#undef c_isgraph
+#define c_isgraph(c) \
+ ({ int __c = (c); \
+ (__c >= '!' && __c <= '~'); \
+ })
+#endif
+
+#if C_CTYPE_ASCII
+#undef c_isprint
+#define c_isprint(c) \
+ ({ int __c = (c); \
+ (__c >= ' ' && __c <= '~'); \
+ })
+#endif
+
+#if C_CTYPE_ASCII
+#undef c_ispunct
+#define c_ispunct(c) \
+ ({ int _c = (c); \
+ (c_isgraph (_c) && ! c_isalnum (_c)); \
+ })
+#endif
+
+#undef c_isspace
+#define c_isspace(c) \
+ ({ int __c = (c); \
+ (__c == ' ' || __c == '\t' \
+ || __c == '\n' || __c == '\v' || __c == '\f' || __c == '\r'); \
+ })
+
+#if C_CTYPE_CONSECUTIVE_UPPERCASE
+#undef c_isupper
+#define c_isupper(c) \
+ ({ int __c = (c); \
+ (__c >= 'A' && __c <= 'Z'); \
+ })
+#endif
+
+#if C_CTYPE_CONSECUTIVE_DIGITS \
+ && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#if C_CTYPE_ASCII
+#undef c_isxdigit
+#define c_isxdigit(c) \
+ ({ int __c = (c); \
+ ((__c >= '0' && __c <= '9') \
+ || ((__c & ~0x20) >= 'A' && (__c & ~0x20) <= 'F')); \
+ })
+#else
+#undef c_isxdigit
+#define c_isxdigit(c) \
+ ({ int __c = (c); \
+ ((__c >= '0' && __c <= '9') \
+ || (__c >= 'A' && __c <= 'F') \
+ || (__c >= 'a' && __c <= 'f')); \
+ })
+#endif
+#endif
+
+#if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
+#undef c_tolower
+#define c_tolower(c) \
+ ({ int __c = (c); \
+ (__c >= 'A' && __c <= 'Z' ? __c - 'A' + 'a' : __c); \
+ })
+#undef c_toupper
+#define c_toupper(c) \
+ ({ int __c = (c); \
+ (__c >= 'a' && __c <= 'z' ? __c - 'a' + 'A' : __c); \
+ })
+#endif
+
+#endif /* optimizing for speed */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* C_CTYPE_H */
diff --git a/lib/getdate.c b/lib/getdate.c
new file mode 100644
index 0000000..5b20eeb
--- /dev/null
+++ b/lib/getdate.c
@@ -0,0 +1,3497 @@
+
+/* A Bison parser, made by GNU Bison 2.4.1. */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.4.1"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 1
+
+/* Push parsers. */
+#define YYPUSH 0
+
+/* Pull parsers. */
+#define YYPULL 1
+
+/* Using locations. */
+#define YYLSP_NEEDED 0
+
+
+
+/* Copy the first part of user declarations. */
+
+/* Line 189 of yacc.c */
+#line 1 "getdate.y"
+
+/* Parse a string into an internal time stamp.
+
+ Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Originally written by Steven M. Bellovin <smb@research.att.com> while
+ at the University of North Carolina at Chapel Hill. Later tweaked by
+ a couple of people on Usenet. Completely overhauled by Rich $alz
+ <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
+
+ Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do
+ the right thing about local DST. Also modified by Paul Eggert
+ <eggert@cs.ucla.edu> in February 2004 to support
+ nanosecond-resolution time stamps, and in October 2004 to support
+ TZ strings in dates. */
+
+/* FIXME: Check for arithmetic overflow in all cases, not just
+ some of them. */
+
+#include <config.h>
+
+#include "getdate.h"
+
+#include "intprops.h"
+#include "timespec.h"
+#include "verify.h"
+
+/* There's no need to extend the stack, so there's no need to involve
+ alloca. */
+#define YYSTACK_USE_ALLOCA 0
+
+/* Tell Bison how much stack space is needed. 20 should be plenty for
+ this grammar, which is not right recursive. Beware setting it too
+ high, since that might cause problems on machines whose
+ implementations have lame stack-overflow checking. */
+#define YYMAXDEPTH 20
+#define YYINITDEPTH YYMAXDEPTH
+
+/* Since the code of getdate.y is not included in the Emacs executable
+ itself, there is no need to #define static in this file. Even if
+ the code were included in the Emacs executable, it probably
+ wouldn't do any harm to #undef it here; this will only cause
+ problems if we try to write to a static variable, which I don't
+ think this code needs to do. */
+#ifdef emacs
+# undef static
+#endif
+
+#include <c-ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "xalloc.h"
+
+
+/* ISDIGIT differs from isdigit, as follows:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char
+ or EOF.
+ - It's typically faster.
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ isdigit unless it's important to use the locale's definition
+ of `digit' even when the host does not conform to POSIX. */
+#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
+
+/* Shift A right by B bits portably, by dividing A by 2**B and
+ truncating towards minus infinity. A and B should be free of side
+ effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
+ INT_BITS is the number of useful bits in an int. GNU code can
+ assume that INT_BITS is at least 32.
+
+ ISO C99 says that A >> B is implementation-defined if A < 0. Some
+ implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
+ right in the usual way when A < 0, so SHR falls back on division if
+ ordinary A >> B doesn't seem to be the usual signed shift. */
+#define SHR(a, b) \
+ (-1 >> 1 == -1 \
+ ? (a) >> (b) \
+ : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
+
+#define EPOCH_YEAR 1970
+#define TM_YEAR_BASE 1900
+
+#define HOUR(x) ((x) * 60)
+
+/* long_time_t is a signed integer type that contains all time_t values. */
+verify (TYPE_IS_INTEGER (time_t));
+#if TIME_T_FITS_IN_LONG_INT
+typedef long int long_time_t;
+#else
+typedef time_t long_time_t;
+#endif
+
+/* Lots of this code assumes time_t and time_t-like values fit into
+ long_time_t. */
+verify (TYPE_MINIMUM (long_time_t) <= TYPE_MINIMUM (time_t)
+ && TYPE_MAXIMUM (time_t) <= TYPE_MAXIMUM (long_time_t));
+
+/* FIXME: It also assumes that signed integer overflow silently wraps around,
+ but this is not true any more with recent versions of GCC 4. */
+
+/* An integer value, and the number of digits in its textual
+ representation. */
+typedef struct
+{
+ bool negative;
+ long int value;
+ size_t digits;
+} textint;
+
+/* An entry in the lexical lookup table. */
+typedef struct
+{
+ char const *name;
+ int type;
+ int value;
+} table;
+
+/* Meridian: am, pm, or 24-hour style. */
+enum { MERam, MERpm, MER24 };
+
+enum { BILLION = 1000000000, LOG10_BILLION = 9 };
+
+/* Relative times. */
+typedef struct
+{
+ /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
+ long int year;
+ long int month;
+ long int day;
+ long int hour;
+ long int minutes;
+ long_time_t seconds;
+ long int ns;
+} relative_time;
+
+#if HAVE_COMPOUND_LITERALS
+# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 })
+#else
+static relative_time const RELATIVE_TIME_0;
+#endif
+
+/* Information passed to and from the parser. */
+typedef struct
+{
+ /* The input string remaining to be parsed. */
+ const char *input;
+
+ /* N, if this is the Nth Tuesday. */
+ long int day_ordinal;
+
+ /* Day of week; Sunday is 0. */
+ int day_number;
+
+ /* tm_isdst flag for the local zone. */
+ int local_isdst;
+
+ /* Time zone, in minutes east of UTC. */
+ long int time_zone;
+
+ /* Style used for time. */
+ int meridian;
+
+ /* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */
+ textint year;
+ long int month;
+ long int day;
+ long int hour;
+ long int minutes;
+ struct timespec seconds; /* includes nanoseconds */
+
+ /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
+ relative_time rel;
+
+ /* Presence or counts of nonterminals of various flavors parsed so far. */
+ bool timespec_seen;
+ bool rels_seen;
+ size_t dates_seen;
+ size_t days_seen;
+ size_t local_zones_seen;
+ size_t dsts_seen;
+ size_t times_seen;
+ size_t zones_seen;
+
+ /* Table of local time zone abbrevations, terminated by a null entry. */
+ table local_time_zone_table[3];
+} parser_control;
+
+union YYSTYPE;
+static int yylex (union YYSTYPE *, parser_control *);
+static int yyerror (parser_control const *, char const *);
+static long int time_zone_hhmm (parser_control *, textint, long int);
+
+/* Extract into *PC any date and time info from a string of digits
+ of the form e.g., YYYYMMDD, YYMMDD, HHMM, HH (and sometimes YYY,
+ YYYY, ...). */
+static void
+digits_to_date_time (parser_control *pc, textint text_int)
+{
+ if (pc->dates_seen && ! pc->year.digits
+ && ! pc->rels_seen && (pc->times_seen || 2 < text_int.digits))
+ pc->year = text_int;
+ else
+ {
+ if (4 < text_int.digits)
+ {
+ pc->dates_seen++;
+ pc->day = text_int.value % 100;
+ pc->month = (text_int.value / 100) % 100;
+ pc->year.value = text_int.value / 10000;
+ pc->year.digits = text_int.digits - 4;
+ }
+ else
+ {
+ pc->times_seen++;
+ if (text_int.digits <= 2)
+ {
+ pc->hour = text_int.value;
+ pc->minutes = 0;
+ }
+ else
+ {
+ pc->hour = text_int.value / 100;
+ pc->minutes = text_int.value % 100;
+ }
+ pc->seconds.tv_sec = 0;
+ pc->seconds.tv_nsec = 0;
+ pc->meridian = MER24;
+ }
+ }
+}
+
+/* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1). */
+static void
+apply_relative_time (parser_control *pc, relative_time rel, int factor)
+{
+ pc->rel.ns += factor * rel.ns;
+ pc->rel.seconds += factor * rel.seconds;
+ pc->rel.minutes += factor * rel.minutes;
+ pc->rel.hour += factor * rel.hour;
+ pc->rel.day += factor * rel.day;
+ pc->rel.month += factor * rel.month;
+ pc->rel.year += factor * rel.year;
+ pc->rels_seen = true;
+}
+
+/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */
+static void
+set_hhmmss (parser_control *pc, long int hour, long int minutes,
+ time_t sec, long int nsec)
+{
+ pc->hour = hour;
+ pc->minutes = minutes;
+ pc->seconds.tv_sec = sec;
+ pc->seconds.tv_nsec = nsec;
+}
+
+
+
+/* Line 189 of yacc.c */
+#line 348 "getdate.c"
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ tAGO = 258,
+ tDST = 259,
+ tYEAR_UNIT = 260,
+ tMONTH_UNIT = 261,
+ tHOUR_UNIT = 262,
+ tMINUTE_UNIT = 263,
+ tSEC_UNIT = 264,
+ tDAY_UNIT = 265,
+ tDAY_SHIFT = 266,
+ tDAY = 267,
+ tDAYZONE = 268,
+ tLOCAL_ZONE = 269,
+ tMERIDIAN = 270,
+ tMONTH = 271,
+ tORDINAL = 272,
+ tZONE = 273,
+ tSNUMBER = 274,
+ tUNUMBER = 275,
+ tSDECIMAL_NUMBER = 276,
+ tUDECIMAL_NUMBER = 277
+ };
+#endif
+/* Tokens. */
+#define tAGO 258
+#define tDST 259
+#define tYEAR_UNIT 260
+#define tMONTH_UNIT 261
+#define tHOUR_UNIT 262
+#define tMINUTE_UNIT 263
+#define tSEC_UNIT 264
+#define tDAY_UNIT 265
+#define tDAY_SHIFT 266
+#define tDAY 267
+#define tDAYZONE 268
+#define tLOCAL_ZONE 269
+#define tMERIDIAN 270
+#define tMONTH 271
+#define tORDINAL 272
+#define tZONE 273
+#define tSNUMBER 274
+#define tUNUMBER 275
+#define tSDECIMAL_NUMBER 276
+#define tUDECIMAL_NUMBER 277
+
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+{
+
+/* Line 214 of yacc.c */
+#line 285 "getdate.y"
+
+ long int intval;
+ textint textintval;
+ struct timespec timespec;
+ relative_time rel;
+
+
+
+/* Line 214 of yacc.c */
+#line 437 "getdate.c"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+
+/* Copy the second part of user declarations. */
+
+
+/* Line 264 of yacc.c */
+#line 449 "getdate.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int yyi)
+#else
+static int
+YYID (yyi)
+ int yyi;
+#endif
+{
+ return yyi;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss_alloc;
+ YYSTYPE yyvs_alloc;
+};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+ + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 12
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 98
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 27
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 21
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 82
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 100
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 277
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 25, 2, 2, 26, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 24, 2,
+ 2, 2, 2, 2, 23, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint8 yyprhs[] =
+{
+ 0, 0, 3, 5, 7, 10, 11, 14, 16, 18,
+ 20, 22, 24, 26, 28, 30, 33, 38, 44, 51,
+ 59, 61, 64, 66, 69, 73, 75, 78, 80, 83,
+ 86, 89, 93, 99, 103, 107, 111, 114, 119, 122,
+ 126, 129, 131, 133, 136, 139, 141, 144, 147, 149,
+ 152, 155, 157, 160, 163, 165, 168, 171, 173, 176,
+ 179, 182, 185, 187, 189, 192, 195, 198, 201, 204,
+ 207, 209, 211, 213, 215, 217, 219, 221, 223, 226,
+ 227, 230, 231
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int8 yyrhs[] =
+{
+ 28, 0, -1, 29, -1, 30, -1, 23, 41, -1,
+ -1, 30, 31, -1, 32, -1, 33, -1, 34, -1,
+ 36, -1, 35, -1, 37, -1, 44, -1, 45, -1,
+ 20, 15, -1, 20, 24, 20, 47, -1, 20, 24,
+ 20, 19, 46, -1, 20, 24, 20, 24, 43, 47,
+ -1, 20, 24, 20, 24, 43, 19, 46, -1, 14,
+ -1, 14, 4, -1, 18, -1, 18, 39, -1, 18,
+ 19, 46, -1, 13, -1, 18, 4, -1, 12, -1,
+ 12, 25, -1, 17, 12, -1, 20, 12, -1, 20,
+ 26, 20, -1, 20, 26, 20, 26, 20, -1, 20,
+ 19, 19, -1, 20, 16, 19, -1, 16, 19, 19,
+ -1, 16, 20, -1, 16, 20, 25, 20, -1, 20,
+ 16, -1, 20, 16, 20, -1, 38, 3, -1, 38,
+ -1, 40, -1, 17, 5, -1, 20, 5, -1, 5,
+ -1, 17, 6, -1, 20, 6, -1, 6, -1, 17,
+ 10, -1, 20, 10, -1, 10, -1, 17, 7, -1,
+ 20, 7, -1, 7, -1, 17, 8, -1, 20, 8,
+ -1, 8, -1, 17, 9, -1, 20, 9, -1, 21,
+ 9, -1, 22, 9, -1, 9, -1, 39, -1, 19,
+ 5, -1, 19, 6, -1, 19, 10, -1, 19, 7,
+ -1, 19, 8, -1, 19, 9, -1, 11, -1, 42,
+ -1, 43, -1, 21, -1, 19, -1, 22, -1, 20,
+ -1, 20, -1, 20, 39, -1, -1, 24, 20, -1,
+ -1, 15, -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint16 yyrline[] =
+{
+ 0, 311, 311, 312, 316, 323, 325, 329, 331, 333,
+ 335, 337, 339, 340, 341, 345, 350, 355, 362, 367,
+ 377, 382, 390, 392, 395, 397, 399, 404, 409, 414,
+ 419, 427, 432, 452, 459, 467, 475, 480, 486, 491,
+ 500, 502, 504, 509, 511, 513, 515, 517, 519, 521,
+ 523, 525, 527, 529, 531, 533, 535, 537, 539, 541,
+ 543, 545, 547, 549, 553, 555, 557, 559, 561, 563,
+ 568, 572, 572, 575, 576, 581, 582, 587, 592, 603,
+ 604, 610, 611
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "tAGO", "tDST", "tYEAR_UNIT",
+ "tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT", "tDAY_UNIT",
+ "tDAY_SHIFT", "tDAY", "tDAYZONE", "tLOCAL_ZONE", "tMERIDIAN", "tMONTH",
+ "tORDINAL", "tZONE", "tSNUMBER", "tUNUMBER", "tSDECIMAL_NUMBER",
+ "tUDECIMAL_NUMBER", "'@'", "':'", "','", "'/'", "$accept", "spec",
+ "timespec", "items", "item", "time", "local_zone", "zone", "day", "date",
+ "rel", "relunit", "relunit_snumber", "dayshift", "seconds",
+ "signed_seconds", "unsigned_seconds", "number", "hybrid",
+ "o_colon_minutes", "o_merid", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+ 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 64, 58, 44, 47
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint8 yyr1[] =
+{
+ 0, 27, 28, 28, 29, 30, 30, 31, 31, 31,
+ 31, 31, 31, 31, 31, 32, 32, 32, 32, 32,
+ 33, 33, 34, 34, 34, 34, 34, 35, 35, 35,
+ 35, 36, 36, 36, 36, 36, 36, 36, 36, 36,
+ 37, 37, 37, 38, 38, 38, 38, 38, 38, 38,
+ 38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
+ 38, 38, 38, 38, 39, 39, 39, 39, 39, 39,
+ 40, 41, 41, 42, 42, 43, 43, 44, 45, 46,
+ 46, 47, 47
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 1, 1, 2, 0, 2, 1, 1, 1,
+ 1, 1, 1, 1, 1, 2, 4, 5, 6, 7,
+ 1, 2, 1, 2, 3, 1, 2, 1, 2, 2,
+ 2, 3, 5, 3, 3, 3, 2, 4, 2, 3,
+ 2, 1, 1, 2, 2, 1, 2, 2, 1, 2,
+ 2, 1, 2, 2, 1, 2, 2, 1, 2, 2,
+ 2, 2, 1, 1, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 0,
+ 2, 0, 1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint8 yydefact[] =
+{
+ 5, 0, 0, 2, 3, 74, 76, 73, 75, 4,
+ 71, 72, 1, 45, 48, 54, 57, 62, 51, 70,
+ 27, 25, 20, 0, 0, 22, 0, 77, 0, 0,
+ 6, 7, 8, 9, 11, 10, 12, 41, 63, 42,
+ 13, 14, 28, 21, 0, 36, 43, 46, 52, 55,
+ 58, 49, 29, 26, 79, 23, 64, 65, 67, 68,
+ 69, 66, 44, 47, 53, 56, 59, 50, 30, 15,
+ 38, 0, 0, 0, 78, 60, 61, 40, 35, 0,
+ 0, 24, 34, 39, 33, 81, 31, 37, 80, 82,
+ 79, 0, 16, 0, 17, 81, 32, 79, 18, 19
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 2, 3, 4, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 9, 10, 11, 40, 41, 81,
+ 92
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -82
+static const yytype_int8 yypact[] =
+{
+ -17, 56, 15, -82, 26, -82, -82, -82, -82, -82,
+ -82, -82, -82, -82, -82, -82, -82, -82, -82, -82,
+ 36, -82, 68, 10, 50, 9, 59, -5, 72, 73,
+ -82, -82, -82, -82, -82, -82, -82, 80, -82, -82,
+ -82, -82, -82, -82, 65, 61, -82, -82, -82, -82,
+ -82, -82, -82, -82, 17, -82, -82, -82, -82, -82,
+ -82, -82, -82, -82, -82, -82, -82, -82, -82, -82,
+ 60, 44, 67, 69, -82, -82, -82, -82, -82, 70,
+ 71, -82, -82, -82, -82, -7, 62, -82, -82, -82,
+ 74, -2, -82, 75, -82, 55, -82, 74, -82, -82
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int8 yypgoto[] =
+{
+ -82, -82, -82, -82, -82, -82, -82, -82, -82, -82,
+ -82, -82, 46, -82, -82, -82, -6, -82, -82, -81,
+ -3
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -1
+static const yytype_uint8 yytable[] =
+{
+ 62, 63, 64, 65, 66, 67, 1, 68, 89, 94,
+ 69, 70, 90, 53, 71, 12, 99, 91, 6, 72,
+ 8, 73, 56, 57, 58, 59, 60, 61, 54, 44,
+ 45, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+ 22, 80, 23, 24, 25, 26, 27, 28, 29, 56,
+ 57, 58, 59, 60, 61, 46, 47, 48, 49, 50,
+ 51, 42, 52, 84, 56, 57, 58, 59, 60, 61,
+ 89, 55, 43, 74, 97, 5, 6, 7, 8, 82,
+ 83, 75, 76, 77, 78, 95, 79, 85, 93, 86,
+ 87, 88, 98, 0, 0, 96, 0, 0, 80
+};
+
+static const yytype_int8 yycheck[] =
+{
+ 5, 6, 7, 8, 9, 10, 23, 12, 15, 90,
+ 15, 16, 19, 4, 19, 0, 97, 24, 20, 24,
+ 22, 26, 5, 6, 7, 8, 9, 10, 19, 19,
+ 20, 5, 6, 7, 8, 9, 10, 11, 12, 13,
+ 14, 24, 16, 17, 18, 19, 20, 21, 22, 5,
+ 6, 7, 8, 9, 10, 5, 6, 7, 8, 9,
+ 10, 25, 12, 19, 5, 6, 7, 8, 9, 10,
+ 15, 25, 4, 27, 19, 19, 20, 21, 22, 19,
+ 20, 9, 9, 3, 19, 91, 25, 20, 26, 20,
+ 20, 20, 95, -1, -1, 20, -1, -1, 24
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint8 yystos[] =
+{
+ 0, 23, 28, 29, 30, 19, 20, 21, 22, 41,
+ 42, 43, 0, 5, 6, 7, 8, 9, 10, 11,
+ 12, 13, 14, 16, 17, 18, 19, 20, 21, 22,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 44, 45, 25, 4, 19, 20, 5, 6, 7, 8,
+ 9, 10, 12, 4, 19, 39, 5, 6, 7, 8,
+ 9, 10, 5, 6, 7, 8, 9, 10, 12, 15,
+ 16, 19, 24, 26, 39, 9, 9, 3, 19, 25,
+ 24, 46, 19, 20, 19, 20, 20, 20, 20, 15,
+ 19, 24, 47, 26, 46, 43, 20, 19, 47, 46
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. */
+
+#define YYFAIL goto yyerrlab
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY && yylen == 1) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (pc, YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval, pc)
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value, pc); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ parser_control *pc;
+#endif
+{
+ if (!yyvaluep)
+ return;
+ YYUSE (pc);
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, pc)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ parser_control *pc;
+#endif
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc);
+ YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+#else
+static void
+yy_stack_print (yybottom, yytop)
+ yytype_int16 *yybottom;
+ yytype_int16 *yytop;
+#endif
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, int yyrule, parser_control *pc)
+#else
+static void
+yy_reduce_print (yyvsp, yyrule, pc)
+ YYSTYPE *yyvsp;
+ int yyrule;
+ parser_control *pc;
+#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ , pc);
+ YYFPRINTF (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, Rule, pc); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+\f
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
+#endif
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
+ {
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+\f
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, parser_control *pc)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep, pc)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
+ parser_control *pc;
+#endif
+{
+ YYUSE (yyvaluep);
+ YYUSE (pc);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+
+/* Prevent warnings from -Wmissing-prototypes. */
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (parser_control *pc);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+/*-------------------------.
+| yyparse or yypush_parse. |
+`-------------------------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (parser_control *pc)
+#else
+int
+yyparse (pc)
+ parser_control *pc;
+#endif
+#endif
+{
+/* The lookahead symbol. */
+int yychar;
+
+/* The semantic value of the lookahead symbol. */
+YYSTYPE yylval;
+
+ /* Number of syntax errors so far. */
+ int yynerrs;
+
+ int yystate;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+
+ /* The stacks and their tools:
+ `yyss': related to states.
+ `yyvs': related to semantic values.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs;
+ YYSTYPE *yyvsp;
+
+ YYSIZE_T yystacksize;
+
+ int yyn;
+ int yyresult;
+ /* Lookahead token as an internal (translated) token number. */
+ int yytoken;
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ yytoken = 0;
+ yyss = yyssa;
+ yyvs = yyvsa;
+ yystacksize = YYINITDEPTH;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+ yyssp = yyss;
+ yyvsp = yyvs;
+
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+ &yystacksize);
+
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss_alloc, yyss);
+ YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ lookahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to lookahead token. */
+ yyn = yypact[yystate];
+ if (yyn == YYPACT_NINF)
+ goto yydefault;
+
+ /* Not known => get a lookahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == YYTABLE_NINF)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the lookahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token. */
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ *++yyvsp = yylval;
+
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 4:
+
+/* Line 1455 of yacc.c */
+#line 317 "getdate.y"
+ {
+ pc->seconds = (yyvsp[(2) - (2)].timespec);
+ pc->timespec_seen = true;
+ }
+ break;
+
+ case 7:
+
+/* Line 1455 of yacc.c */
+#line 330 "getdate.y"
+ { pc->times_seen++; }
+ break;
+
+ case 8:
+
+/* Line 1455 of yacc.c */
+#line 332 "getdate.y"
+ { pc->local_zones_seen++; }
+ break;
+
+ case 9:
+
+/* Line 1455 of yacc.c */
+#line 334 "getdate.y"
+ { pc->zones_seen++; }
+ break;
+
+ case 10:
+
+/* Line 1455 of yacc.c */
+#line 336 "getdate.y"
+ { pc->dates_seen++; }
+ break;
+
+ case 11:
+
+/* Line 1455 of yacc.c */
+#line 338 "getdate.y"
+ { pc->days_seen++; }
+ break;
+
+ case 15:
+
+/* Line 1455 of yacc.c */
+#line 346 "getdate.y"
+ {
+ set_hhmmss (pc, (yyvsp[(1) - (2)].textintval).value, 0, 0, 0);
+ pc->meridian = (yyvsp[(2) - (2)].intval);
+ }
+ break;
+
+ case 16:
+
+/* Line 1455 of yacc.c */
+#line 351 "getdate.y"
+ {
+ set_hhmmss (pc, (yyvsp[(1) - (4)].textintval).value, (yyvsp[(3) - (4)].textintval).value, 0, 0);
+ pc->meridian = (yyvsp[(4) - (4)].intval);
+ }
+ break;
+
+ case 17:
+
+/* Line 1455 of yacc.c */
+#line 356 "getdate.y"
+ {
+ set_hhmmss (pc, (yyvsp[(1) - (5)].textintval).value, (yyvsp[(3) - (5)].textintval).value, 0, 0);
+ pc->meridian = MER24;
+ pc->zones_seen++;
+ pc->time_zone = time_zone_hhmm (pc, (yyvsp[(4) - (5)].textintval), (yyvsp[(5) - (5)].intval));
+ }
+ break;
+
+ case 18:
+
+/* Line 1455 of yacc.c */
+#line 363 "getdate.y"
+ {
+ set_hhmmss (pc, (yyvsp[(1) - (6)].textintval).value, (yyvsp[(3) - (6)].textintval).value, (yyvsp[(5) - (6)].timespec).tv_sec, (yyvsp[(5) - (6)].timespec).tv_nsec);
+ pc->meridian = (yyvsp[(6) - (6)].intval);
+ }
+ break;
+
+ case 19:
+
+/* Line 1455 of yacc.c */
+#line 368 "getdate.y"
+ {
+ set_hhmmss (pc, (yyvsp[(1) - (7)].textintval).value, (yyvsp[(3) - (7)].textintval).value, (yyvsp[(5) - (7)].timespec).tv_sec, (yyvsp[(5) - (7)].timespec).tv_nsec);
+ pc->meridian = MER24;
+ pc->zones_seen++;
+ pc->time_zone = time_zone_hhmm (pc, (yyvsp[(6) - (7)].textintval), (yyvsp[(7) - (7)].intval));
+ }
+ break;
+
+ case 20:
+
+/* Line 1455 of yacc.c */
+#line 378 "getdate.y"
+ {
+ pc->local_isdst = (yyvsp[(1) - (1)].intval);
+ pc->dsts_seen += (0 < (yyvsp[(1) - (1)].intval));
+ }
+ break;
+
+ case 21:
+
+/* Line 1455 of yacc.c */
+#line 383 "getdate.y"
+ {
+ pc->local_isdst = 1;
+ pc->dsts_seen += (0 < (yyvsp[(1) - (2)].intval)) + 1;
+ }
+ break;
+
+ case 22:
+
+/* Line 1455 of yacc.c */
+#line 391 "getdate.y"
+ { pc->time_zone = (yyvsp[(1) - (1)].intval); }
+ break;
+
+ case 23:
+
+/* Line 1455 of yacc.c */
+#line 393 "getdate.y"
+ { pc->time_zone = (yyvsp[(1) - (2)].intval);
+ apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1); }
+ break;
+
+ case 24:
+
+/* Line 1455 of yacc.c */
+#line 396 "getdate.y"
+ { pc->time_zone = (yyvsp[(1) - (3)].intval) + time_zone_hhmm (pc, (yyvsp[(2) - (3)].textintval), (yyvsp[(3) - (3)].intval)); }
+ break;
+
+ case 25:
+
+/* Line 1455 of yacc.c */
+#line 398 "getdate.y"
+ { pc->time_zone = (yyvsp[(1) - (1)].intval) + 60; }
+ break;
+
+ case 26:
+
+/* Line 1455 of yacc.c */
+#line 400 "getdate.y"
+ { pc->time_zone = (yyvsp[(1) - (2)].intval) + 60; }
+ break;
+
+ case 27:
+
+/* Line 1455 of yacc.c */
+#line 405 "getdate.y"
+ {
+ pc->day_ordinal = 0;
+ pc->day_number = (yyvsp[(1) - (1)].intval);
+ }
+ break;
+
+ case 28:
+
+/* Line 1455 of yacc.c */
+#line 410 "getdate.y"
+ {
+ pc->day_ordinal = 0;
+ pc->day_number = (yyvsp[(1) - (2)].intval);
+ }
+ break;
+
+ case 29:
+
+/* Line 1455 of yacc.c */
+#line 415 "getdate.y"
+ {
+ pc->day_ordinal = (yyvsp[(1) - (2)].intval);
+ pc->day_number = (yyvsp[(2) - (2)].intval);
+ }
+ break;
+
+ case 30:
+
+/* Line 1455 of yacc.c */
+#line 420 "getdate.y"
+ {
+ pc->day_ordinal = (yyvsp[(1) - (2)].textintval).value;
+ pc->day_number = (yyvsp[(2) - (2)].intval);
+ }
+ break;
+
+ case 31:
+
+/* Line 1455 of yacc.c */
+#line 428 "getdate.y"
+ {
+ pc->month = (yyvsp[(1) - (3)].textintval).value;
+ pc->day = (yyvsp[(3) - (3)].textintval).value;
+ }
+ break;
+
+ case 32:
+
+/* Line 1455 of yacc.c */
+#line 433 "getdate.y"
+ {
+ /* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
+ otherwise as MM/DD/YY.
+ The goal in recognizing YYYY/MM/DD is solely to support legacy
+ machine-generated dates like those in an RCS log listing. If
+ you want portability, use the ISO 8601 format. */
+ if (4 <= (yyvsp[(1) - (5)].textintval).digits)
+ {
+ pc->year = (yyvsp[(1) - (5)].textintval);
+ pc->month = (yyvsp[(3) - (5)].textintval).value;
+ pc->day = (yyvsp[(5) - (5)].textintval).value;
+ }
+ else
+ {
+ pc->month = (yyvsp[(1) - (5)].textintval).value;
+ pc->day = (yyvsp[(3) - (5)].textintval).value;
+ pc->year = (yyvsp[(5) - (5)].textintval);
+ }
+ }
+ break;
+
+ case 33:
+
+/* Line 1455 of yacc.c */
+#line 453 "getdate.y"
+ {
+ /* ISO 8601 format. YYYY-MM-DD. */
+ pc->year = (yyvsp[(1) - (3)].textintval);
+ pc->month = -(yyvsp[(2) - (3)].textintval).value;
+ pc->day = -(yyvsp[(3) - (3)].textintval).value;
+ }
+ break;
+
+ case 34:
+
+/* Line 1455 of yacc.c */
+#line 460 "getdate.y"
+ {
+ /* e.g. 17-JUN-1992. */
+ pc->day = (yyvsp[(1) - (3)].textintval).value;
+ pc->month = (yyvsp[(2) - (3)].intval);
+ pc->year.value = -(yyvsp[(3) - (3)].textintval).value;
+ pc->year.digits = (yyvsp[(3) - (3)].textintval).digits;
+ }
+ break;
+
+ case 35:
+
+/* Line 1455 of yacc.c */
+#line 468 "getdate.y"
+ {
+ /* e.g. JUN-17-1992. */
+ pc->month = (yyvsp[(1) - (3)].intval);
+ pc->day = -(yyvsp[(2) - (3)].textintval).value;
+ pc->year.value = -(yyvsp[(3) - (3)].textintval).value;
+ pc->year.digits = (yyvsp[(3) - (3)].textintval).digits;
+ }
+ break;
+
+ case 36:
+
+/* Line 1455 of yacc.c */
+#line 476 "getdate.y"
+ {
+ pc->month = (yyvsp[(1) - (2)].intval);
+ pc->day = (yyvsp[(2) - (2)].textintval).value;
+ }
+ break;
+
+ case 37:
+
+/* Line 1455 of yacc.c */
+#line 481 "getdate.y"
+ {
+ pc->month = (yyvsp[(1) - (4)].intval);
+ pc->day = (yyvsp[(2) - (4)].textintval).value;
+ pc->year = (yyvsp[(4) - (4)].textintval);
+ }
+ break;
+
+ case 38:
+
+/* Line 1455 of yacc.c */
+#line 487 "getdate.y"
+ {
+ pc->day = (yyvsp[(1) - (2)].textintval).value;
+ pc->month = (yyvsp[(2) - (2)].intval);
+ }
+ break;
+
+ case 39:
+
+/* Line 1455 of yacc.c */
+#line 492 "getdate.y"
+ {
+ pc->day = (yyvsp[(1) - (3)].textintval).value;
+ pc->month = (yyvsp[(2) - (3)].intval);
+ pc->year = (yyvsp[(3) - (3)].textintval);
+ }
+ break;
+
+ case 40:
+
+/* Line 1455 of yacc.c */
+#line 501 "getdate.y"
+ { apply_relative_time (pc, (yyvsp[(1) - (2)].rel), -1); }
+ break;
+
+ case 41:
+
+/* Line 1455 of yacc.c */
+#line 503 "getdate.y"
+ { apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
+ break;
+
+ case 42:
+
+/* Line 1455 of yacc.c */
+#line 505 "getdate.y"
+ { apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
+ break;
+
+ case 43:
+
+/* Line 1455 of yacc.c */
+#line 510 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].intval); }
+ break;
+
+ case 44:
+
+/* Line 1455 of yacc.c */
+#line 512 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 45:
+
+/* Line 1455 of yacc.c */
+#line 514 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
+ break;
+
+ case 46:
+
+/* Line 1455 of yacc.c */
+#line 516 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].intval); }
+ break;
+
+ case 47:
+
+/* Line 1455 of yacc.c */
+#line 518 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 48:
+
+/* Line 1455 of yacc.c */
+#line 520 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
+ break;
+
+ case 49:
+
+/* Line 1455 of yacc.c */
+#line 522 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].intval) * (yyvsp[(2) - (2)].intval); }
+ break;
+
+ case 50:
+
+/* Line 1455 of yacc.c */
+#line 524 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
+ break;
+
+ case 51:
+
+/* Line 1455 of yacc.c */
+#line 526 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
+ break;
+
+ case 52:
+
+/* Line 1455 of yacc.c */
+#line 528 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].intval); }
+ break;
+
+ case 53:
+
+/* Line 1455 of yacc.c */
+#line 530 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 54:
+
+/* Line 1455 of yacc.c */
+#line 532 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
+ break;
+
+ case 55:
+
+/* Line 1455 of yacc.c */
+#line 534 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].intval); }
+ break;
+
+ case 56:
+
+/* Line 1455 of yacc.c */
+#line 536 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 57:
+
+/* Line 1455 of yacc.c */
+#line 538 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
+ break;
+
+ case 58:
+
+/* Line 1455 of yacc.c */
+#line 540 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].intval); }
+ break;
+
+ case 59:
+
+/* Line 1455 of yacc.c */
+#line 542 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 60:
+
+/* Line 1455 of yacc.c */
+#line 544 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
+ break;
+
+ case 61:
+
+/* Line 1455 of yacc.c */
+#line 546 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
+ break;
+
+ case 62:
+
+/* Line 1455 of yacc.c */
+#line 548 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
+ break;
+
+ case 64:
+
+/* Line 1455 of yacc.c */
+#line 554 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 65:
+
+/* Line 1455 of yacc.c */
+#line 556 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 66:
+
+/* Line 1455 of yacc.c */
+#line 558 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
+ break;
+
+ case 67:
+
+/* Line 1455 of yacc.c */
+#line 560 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 68:
+
+/* Line 1455 of yacc.c */
+#line 562 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 69:
+
+/* Line 1455 of yacc.c */
+#line 564 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
+ break;
+
+ case 70:
+
+/* Line 1455 of yacc.c */
+#line 569 "getdate.y"
+ { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
+ break;
+
+ case 74:
+
+/* Line 1455 of yacc.c */
+#line 577 "getdate.y"
+ { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
+ break;
+
+ case 76:
+
+/* Line 1455 of yacc.c */
+#line 583 "getdate.y"
+ { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
+ break;
+
+ case 77:
+
+/* Line 1455 of yacc.c */
+#line 588 "getdate.y"
+ { digits_to_date_time (pc, (yyvsp[(1) - (1)].textintval)); }
+ break;
+
+ case 78:
+
+/* Line 1455 of yacc.c */
+#line 593 "getdate.y"
+ {
+ /* Hybrid all-digit and relative offset, so that we accept e.g.,
+ "YYYYMMDD +N days" as well as "YYYYMMDD N days". */
+ digits_to_date_time (pc, (yyvsp[(1) - (2)].textintval));
+ apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1);
+ }
+ break;
+
+ case 79:
+
+/* Line 1455 of yacc.c */
+#line 603 "getdate.y"
+ { (yyval.intval) = -1; }
+ break;
+
+ case 80:
+
+/* Line 1455 of yacc.c */
+#line 605 "getdate.y"
+ { (yyval.intval) = (yyvsp[(2) - (2)].textintval).value; }
+ break;
+
+ case 81:
+
+/* Line 1455 of yacc.c */
+#line 610 "getdate.y"
+ { (yyval.intval) = MER24; }
+ break;
+
+ case 82:
+
+/* Line 1455 of yacc.c */
+#line 612 "getdate.y"
+ { (yyval.intval) = (yyvsp[(1) - (1)].intval); }
+ break;
+
+
+
+/* Line 1455 of yacc.c */
+#line 2327 "getdate.c"
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (pc, YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (pc, yymsg);
+ }
+ else
+ {
+ yyerror (pc, YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
+ }
+
+
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval, pc);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse lookahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp, pc);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ *++yyvsp = yylval;
+
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#if !defined(yyoverflow) || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (pc, YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval, pc);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp, pc);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+
+/* Line 1675 of yacc.c */
+#line 615 "getdate.y"
+
+
+static table const meridian_table[] =
+{
+ { "AM", tMERIDIAN, MERam },
+ { "A.M.", tMERIDIAN, MERam },
+ { "PM", tMERIDIAN, MERpm },
+ { "P.M.", tMERIDIAN, MERpm },
+ { NULL, 0, 0 }
+};
+
+static table const dst_table[] =
+{
+ { "DST", tDST, 0 }
+};
+
+static table const month_and_day_table[] =
+{
+ { "JANUARY", tMONTH, 1 },
+ { "FEBRUARY", tMONTH, 2 },
+ { "MARCH", tMONTH, 3 },
+ { "APRIL", tMONTH, 4 },
+ { "MAY", tMONTH, 5 },
+ { "JUNE", tMONTH, 6 },
+ { "JULY", tMONTH, 7 },
+ { "AUGUST", tMONTH, 8 },
+ { "SEPTEMBER",tMONTH, 9 },
+ { "SEPT", tMONTH, 9 },
+ { "OCTOBER", tMONTH, 10 },
+ { "NOVEMBER", tMONTH, 11 },
+ { "DECEMBER", tMONTH, 12 },
+ { "SUNDAY", tDAY, 0 },
+ { "MONDAY", tDAY, 1 },
+ { "TUESDAY", tDAY, 2 },
+ { "TUES", tDAY, 2 },
+ { "WEDNESDAY",tDAY, 3 },
+ { "WEDNES", tDAY, 3 },
+ { "THURSDAY", tDAY, 4 },
+ { "THUR", tDAY, 4 },
+ { "THURS", tDAY, 4 },
+ { "FRIDAY", tDAY, 5 },
+ { "SATURDAY", tDAY, 6 },
+ { NULL, 0, 0 }
+};
+
+static table const time_units_table[] =
+{
+ { "YEAR", tYEAR_UNIT, 1 },
+ { "MONTH", tMONTH_UNIT, 1 },
+ { "FORTNIGHT",tDAY_UNIT, 14 },
+ { "WEEK", tDAY_UNIT, 7 },
+ { "DAY", tDAY_UNIT, 1 },
+ { "HOUR", tHOUR_UNIT, 1 },
+ { "MINUTE", tMINUTE_UNIT, 1 },
+ { "MIN", tMINUTE_UNIT, 1 },
+ { "SECOND", tSEC_UNIT, 1 },
+ { "SEC", tSEC_UNIT, 1 },
+ { NULL, 0, 0 }
+};
+
+/* Assorted relative-time words. */
+static table const relative_time_table[] =
+{
+ { "TOMORROW", tDAY_SHIFT, 1 },
+ { "YESTERDAY",tDAY_SHIFT, -1 },
+ { "TODAY", tDAY_SHIFT, 0 },
+ { "NOW", tDAY_SHIFT, 0 },
+ { "LAST", tORDINAL, -1 },
+ { "THIS", tORDINAL, 0 },
+ { "NEXT", tORDINAL, 1 },
+ { "FIRST", tORDINAL, 1 },
+/*{ "SECOND", tORDINAL, 2 }, */
+ { "THIRD", tORDINAL, 3 },
+ { "FOURTH", tORDINAL, 4 },
+ { "FIFTH", tORDINAL, 5 },
+ { "SIXTH", tORDINAL, 6 },
+ { "SEVENTH", tORDINAL, 7 },
+ { "EIGHTH", tORDINAL, 8 },
+ { "NINTH", tORDINAL, 9 },
+ { "TENTH", tORDINAL, 10 },
+ { "ELEVENTH", tORDINAL, 11 },
+ { "TWELFTH", tORDINAL, 12 },
+ { "AGO", tAGO, 1 },
+ { NULL, 0, 0 }
+};
+
+/* The universal time zone table. These labels can be used even for
+ time stamps that would not otherwise be valid, e.g., GMT time
+ stamps in London during summer. */
+static table const universal_time_zone_table[] =
+{
+ { "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */
+ { "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */
+ { "UTC", tZONE, HOUR ( 0) },
+ { NULL, 0, 0 }
+};
+
+/* The time zone table. This table is necessarily incomplete, as time
+ zone abbreviations are ambiguous; e.g. Australians interpret "EST"
+ as Eastern time in Australia, not as US Eastern Standard Time.
+ You cannot rely on getdate to handle arbitrary time zone
+ abbreviations; use numeric abbreviations like `-0500' instead. */
+static table const time_zone_table[] =
+{
+ { "WET", tZONE, HOUR ( 0) }, /* Western European */
+ { "WEST", tDAYZONE, HOUR ( 0) }, /* Western European Summer */
+ { "BST", tDAYZONE, HOUR ( 0) }, /* British Summer */
+ { "ART", tZONE, -HOUR ( 3) }, /* Argentina */
+ { "BRT", tZONE, -HOUR ( 3) }, /* Brazil */
+ { "BRST", tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */
+ { "NST", tZONE, -(HOUR ( 3) + 30) }, /* Newfoundland Standard */
+ { "NDT", tDAYZONE,-(HOUR ( 3) + 30) }, /* Newfoundland Daylight */
+ { "AST", tZONE, -HOUR ( 4) }, /* Atlantic Standard */
+ { "ADT", tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */
+ { "CLT", tZONE, -HOUR ( 4) }, /* Chile */
+ { "CLST", tDAYZONE, -HOUR ( 4) }, /* Chile Summer */
+ { "EST", tZONE, -HOUR ( 5) }, /* Eastern Standard */
+ { "EDT", tDAYZONE, -HOUR ( 5) }, /* Eastern Daylight */
+ { "CST", tZONE, -HOUR ( 6) }, /* Central Standard */
+ { "CDT", tDAYZONE, -HOUR ( 6) }, /* Central Daylight */
+ { "MST", tZONE, -HOUR ( 7) }, /* Mountain Standard */
+ { "MDT", tDAYZONE, -HOUR ( 7) }, /* Mountain Daylight */
+ { "PST", tZONE, -HOUR ( 8) }, /* Pacific Standard */
+ { "PDT", tDAYZONE, -HOUR ( 8) }, /* Pacific Daylight */
+ { "AKST", tZONE, -HOUR ( 9) }, /* Alaska Standard */
+ { "AKDT", tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */
+ { "HST", tZONE, -HOUR (10) }, /* Hawaii Standard */
+ { "HAST", tZONE, -HOUR (10) }, /* Hawaii-Aleutian Standard */
+ { "HADT", tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */
+ { "SST", tZONE, -HOUR (12) }, /* Samoa Standard */
+ { "WAT", tZONE, HOUR ( 1) }, /* West Africa */
+ { "CET", tZONE, HOUR ( 1) }, /* Central European */
+ { "CEST", tDAYZONE, HOUR ( 1) }, /* Central European Summer */
+ { "MET", tZONE, HOUR ( 1) }, /* Middle European */
+ { "MEZ", tZONE, HOUR ( 1) }, /* Middle European */
+ { "MEST", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
+ { "MESZ", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
+ { "EET", tZONE, HOUR ( 2) }, /* Eastern European */
+ { "EEST", tDAYZONE, HOUR ( 2) }, /* Eastern European Summer */
+ { "CAT", tZONE, HOUR ( 2) }, /* Central Africa */
+ { "SAST", tZONE, HOUR ( 2) }, /* South Africa Standard */
+ { "EAT", tZONE, HOUR ( 3) }, /* East Africa */
+ { "MSK", tZONE, HOUR ( 3) }, /* Moscow */
+ { "MSD", tDAYZONE, HOUR ( 3) }, /* Moscow Daylight */
+ { "IST", tZONE, (HOUR ( 5) + 30) }, /* India Standard */
+ { "SGT", tZONE, HOUR ( 8) }, /* Singapore */
+ { "KST", tZONE, HOUR ( 9) }, /* Korea Standard */
+ { "JST", tZONE, HOUR ( 9) }, /* Japan Standard */
+ { "GST", tZONE, HOUR (10) }, /* Guam Standard */
+ { "NZST", tZONE, HOUR (12) }, /* New Zealand Standard */
+ { "NZDT", tDAYZONE, HOUR (12) }, /* New Zealand Daylight */
+ { NULL, 0, 0 }
+};
+
+/* Military time zone table. */
+static table const military_table[] =
+{
+ { "A", tZONE, -HOUR ( 1) },
+ { "B", tZONE, -HOUR ( 2) },
+ { "C", tZONE, -HOUR ( 3) },
+ { "D", tZONE, -HOUR ( 4) },
+ { "E", tZONE, -HOUR ( 5) },
+ { "F", tZONE, -HOUR ( 6) },
+ { "G", tZONE, -HOUR ( 7) },
+ { "H", tZONE, -HOUR ( 8) },
+ { "I", tZONE, -HOUR ( 9) },
+ { "K", tZONE, -HOUR (10) },
+ { "L", tZONE, -HOUR (11) },
+ { "M", tZONE, -HOUR (12) },
+ { "N", tZONE, HOUR ( 1) },
+ { "O", tZONE, HOUR ( 2) },
+ { "P", tZONE, HOUR ( 3) },
+ { "Q", tZONE, HOUR ( 4) },
+ { "R", tZONE, HOUR ( 5) },
+ { "S", tZONE, HOUR ( 6) },
+ { "T", tZONE, HOUR ( 7) },
+ { "U", tZONE, HOUR ( 8) },
+ { "V", tZONE, HOUR ( 9) },
+ { "W", tZONE, HOUR (10) },
+ { "X", tZONE, HOUR (11) },
+ { "Y", tZONE, HOUR (12) },
+ { "Z", tZONE, HOUR ( 0) },
+ { NULL, 0, 0 }
+};
+
+\f
+
+/* Convert a time zone expressed as HH:MM into an integer count of
+ minutes. If MM is negative, then S is of the form HHMM and needs
+ to be picked apart; otherwise, S is of the form HH. As specified in
+ http://www.opengroup.org/susv3xbd/xbd_chap08.html#tag_08_03, allow
+ only valid TZ range, and consider first two digits as hours, if no
+ minutes specified. */
+
+static long int
+time_zone_hhmm (parser_control *pc, textint s, long int mm)
+{
+ long int n_minutes;
+
+ /* If the length of S is 1 or 2 and no minutes are specified,
+ interpret it as a number of hours. */
+ if (s.digits <= 2 && mm < 0)
+ s.value *= 100;
+
+ if (mm < 0)
+ n_minutes = (s.value / 100) * 60 + s.value % 100;
+ else
+ n_minutes = s.value * 60 + (s.negative ? -mm : mm);
+
+ /* If the absolute number of minutes is larger than 24 hours,
+ arrange to reject it by incrementing pc->zones_seen. Thus,
+ we allow only values in the range UTC-24:00 to UTC+24:00. */
+ if (24 * 60 < abs (n_minutes))
+ pc->zones_seen++;
+
+ return n_minutes;
+}
+
+static int
+to_hour (long int hours, int meridian)
+{
+ switch (meridian)
+ {
+ default: /* Pacify GCC. */
+ case MER24:
+ return 0 <= hours && hours < 24 ? hours : -1;
+ case MERam:
+ return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
+ case MERpm:
+ return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
+ }
+}
+
+static long int
+to_year (textint textyear)
+{
+ long int year = textyear.value;
+
+ if (year < 0)
+ year = -year;
+
+ /* XPG4 suggests that years 00-68 map to 2000-2068, and
+ years 69-99 map to 1969-1999. */
+ else if (textyear.digits == 2)
+ year += year < 69 ? 2000 : 1900;
+
+ return year;
+}
+
+static table const *
+lookup_zone (parser_control const *pc, char const *name)
+{
+ table const *tp;
+
+ for (tp = universal_time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ /* Try local zone abbreviations before those in time_zone_table, as
+ the local ones are more likely to be right. */
+ for (tp = pc->local_time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ for (tp = time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ return NULL;
+}
+
+#if ! HAVE_TM_GMTOFF
+/* Yield the difference between *A and *B,
+ measured in seconds, ignoring leap seconds.
+ The body of this function is taken directly from the GNU C Library;
+ see src/strftime.c. */
+static long int
+tm_diff (struct tm const *a, struct tm const *b)
+{
+ /* Compute intervening leap days correctly even if year is negative.
+ Take care to avoid int overflow in leap day calculations. */
+ int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
+ int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
+ int a100 = a4 / 25 - (a4 % 25 < 0);
+ int b100 = b4 / 25 - (b4 % 25 < 0);
+ int a400 = SHR (a100, 2);
+ int b400 = SHR (b100, 2);
+ int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
+ long int ayear = a->tm_year;
+ long int years = ayear - b->tm_year;
+ long int days = (365 * years + intervening_leap_days
+ + (a->tm_yday - b->tm_yday));
+ return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
+ + (a->tm_min - b->tm_min))
+ + (a->tm_sec - b->tm_sec));
+}
+#endif /* ! HAVE_TM_GMTOFF */
+
+static table const *
+lookup_word (parser_control const *pc, char *word)
+{
+ char *p;
+ char *q;
+ size_t wordlen;
+ table const *tp;
+ bool period_found;
+ bool abbrev;
+
+ /* Make it uppercase. */
+ for (p = word; *p; p++)
+ {
+ unsigned char ch = *p;
+ *p = c_toupper (ch);
+ }
+
+ for (tp = meridian_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* See if we have an abbreviation for a month. */
+ wordlen = strlen (word);
+ abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
+
+ for (tp = month_and_day_table; tp->name; tp++)
+ if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
+ return tp;
+
+ if ((tp = lookup_zone (pc, word)))
+ return tp;
+
+ if (strcmp (word, dst_table[0].name) == 0)
+ return dst_table;
+
+ for (tp = time_units_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* Strip off any plural and try the units table again. */
+ if (word[wordlen - 1] == 'S')
+ {
+ word[wordlen - 1] = '\0';
+ for (tp = time_units_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+ word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */
+ }
+
+ for (tp = relative_time_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* Military time zones. */
+ if (wordlen == 1)
+ for (tp = military_table; tp->name; tp++)
+ if (word[0] == tp->name[0])
+ return tp;
+
+ /* Drop out any periods and try the time zone table again. */
+ for (period_found = false, p = q = word; (*p = *q); q++)
+ if (*q == '.')
+ period_found = true;
+ else
+ p++;
+ if (period_found && (tp = lookup_zone (pc, word)))
+ return tp;
+
+ return NULL;
+}
+
+static int
+yylex (YYSTYPE *lvalp, parser_control *pc)
+{
+ unsigned char c;
+ size_t count;
+
+ for (;;)
+ {
+ while (c = *pc->input, c_isspace (c))
+ pc->input++;
+
+ if (ISDIGIT (c) || c == '-' || c == '+')
+ {
+ char const *p;
+ int sign;
+ unsigned long int value;
+ if (c == '-' || c == '+')
+ {
+ sign = c == '-' ? -1 : 1;
+ while (c = *++pc->input, c_isspace (c))
+ continue;
+ if (! ISDIGIT (c))
+ /* skip the '-' sign */
+ continue;
+ }
+ else
+ sign = 0;
+ p = pc->input;
+ for (value = 0; ; value *= 10)
+ {
+ unsigned long int value1 = value + (c - '0');
+ if (value1 < value)
+ return '?';
+ value = value1;
+ c = *++p;
+ if (! ISDIGIT (c))
+ break;
+ if (ULONG_MAX / 10 < value)
+ return '?';
+ }
+ if ((c == '.' || c == ',') && ISDIGIT (p[1]))
+ {
+ time_t s;
+ int ns;
+ int digits;
+ unsigned long int value1;
+
+ /* Check for overflow when converting value to time_t. */
+ if (sign < 0)
+ {
+ s = - value;
+ if (0 < s)
+ return '?';
+ value1 = -s;
+ }
+ else
+ {
+ s = value;
+ if (s < 0)
+ return '?';
+ value1 = s;
+ }
+ if (value != value1)
+ return '?';
+
+ /* Accumulate fraction, to ns precision. */
+ p++;
+ ns = *p++ - '0';
+ for (digits = 2; digits <= LOG10_BILLION; digits++)
+ {
+ ns *= 10;
+ if (ISDIGIT (*p))
+ ns += *p++ - '0';
+ }
+
+ /* Skip excess digits, truncating toward -Infinity. */
+ if (sign < 0)
+ for (; ISDIGIT (*p); p++)
+ if (*p != '0')
+ {
+ ns++;
+ break;
+ }
+ while (ISDIGIT (*p))
+ p++;
+
+ /* Adjust to the timespec convention, which is that
+ tv_nsec is always a positive offset even if tv_sec is
+ negative. */
+ if (sign < 0 && ns)
+ {
+ s--;
+ if (! (s < 0))
+ return '?';
+ ns = BILLION - ns;
+ }
+
+ lvalp->timespec.tv_sec = s;
+ lvalp->timespec.tv_nsec = ns;
+ pc->input = p;
+ return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER;
+ }
+ else
+ {
+ lvalp->textintval.negative = sign < 0;
+ if (sign < 0)
+ {
+ lvalp->textintval.value = - value;
+ if (0 < lvalp->textintval.value)
+ return '?';
+ }
+ else
+ {
+ lvalp->textintval.value = value;
+ if (lvalp->textintval.value < 0)
+ return '?';
+ }
+ lvalp->textintval.digits = p - pc->input;
+ pc->input = p;
+ return sign ? tSNUMBER : tUNUMBER;
+ }
+ }
+
+ if (c_isalpha (c))
+ {
+ char buff[20];
+ char *p = buff;
+ table const *tp;
+
+ do
+ {
+ if (p < buff + sizeof buff - 1)
+ *p++ = c;
+ c = *++pc->input;
+ }
+ while (c_isalpha (c) || c == '.');
+
+ *p = '\0';
+ tp = lookup_word (pc, buff);
+ if (! tp)
+ return '?';
+ lvalp->intval = tp->value;
+ return tp->type;
+ }
+
+ if (c != '(')
+ return *pc->input++;
+ count = 0;
+ do
+ {
+ c = *pc->input++;
+ if (c == '\0')
+ return c;
+ if (c == '(')
+ count++;
+ else if (c == ')')
+ count--;
+ }
+ while (count != 0);
+ }
+}
+
+/* Do nothing if the parser reports an error. */
+static int
+yyerror (parser_control const *pc _GL_UNUSED,
+ char const *s _GL_UNUSED)
+{
+ return 0;
+}
+
+/* If *TM0 is the old and *TM1 is the new value of a struct tm after
+ passing it to mktime, return true if it's OK that mktime returned T.
+ It's not OK if *TM0 has out-of-range members. */
+
+static bool
+mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
+{
+ if (t == (time_t) -1)
+ {
+ /* Guard against falsely reporting an error when parsing a time
+ stamp that happens to equal (time_t) -1, on a host that
+ supports such a time stamp. */
+ tm1 = localtime (&t);
+ if (!tm1)
+ return false;
+ }
+
+ return ! ((tm0->tm_sec ^ tm1->tm_sec)
+ | (tm0->tm_min ^ tm1->tm_min)
+ | (tm0->tm_hour ^ tm1->tm_hour)
+ | (tm0->tm_mday ^ tm1->tm_mday)
+ | (tm0->tm_mon ^ tm1->tm_mon)
+ | (tm0->tm_year ^ tm1->tm_year));
+}
+
+/* A reasonable upper bound for the size of ordinary TZ strings.
+ Use heap allocation if TZ's length exceeds this. */
+enum { TZBUFSIZE = 100 };
+
+/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
+ otherwise. */
+static char *
+get_tz (char tzbuf[TZBUFSIZE])
+{
+ char *tz = getenv ("TZ");
+ if (tz)
+ {
+ size_t tzsize = strlen (tz) + 1;
+ tz = (tzsize <= TZBUFSIZE
+ ? memcpy (tzbuf, tz, tzsize)
+ : xmemdup (tz, tzsize));
+ }
+ return tz;
+}
+
+/* Parse a date/time string, storing the resulting time value into *RESULT.
+ The string itself is pointed to by P. Return true if successful.
+ P can be an incomplete or relative time specification; if so, use
+ *NOW as the basis for the returned time. */
+bool
+get_date (struct timespec *result, char const *p, struct timespec const *now)
+{
+ time_t Start;
+ long int Start_ns;
+ struct tm const *tmp;
+ struct tm tm;
+ struct tm tm0;
+ parser_control pc;
+ struct timespec gettime_buffer;
+ unsigned char c;
+ bool tz_was_altered = false;
+ char *tz0 = NULL;
+ char tz0buf[TZBUFSIZE];
+ bool ok = true;
+
+ if (! now)
+ {
+ gettime (&gettime_buffer);
+ now = &gettime_buffer;
+ }
+
+ Start = now->tv_sec;
+ Start_ns = now->tv_nsec;
+
+ tmp = localtime (&now->tv_sec);
+ if (! tmp)
+ return false;
+
+ while (c = *p, c_isspace (c))
+ p++;
+
+ if (strncmp (p, "TZ=\"", 4) == 0)
+ {
+ char const *tzbase = p + 4;
+ size_t tzsize = 1;
+ char const *s;
+
+ for (s = tzbase; *s; s++, tzsize++)
+ if (*s == '\\')
+ {
+ s++;
+ if (! (*s == '\\' || *s == '"'))
+ break;
+ }
+ else if (*s == '"')
+ {
+ char *z;
+ char *tz1;
+ char tz1buf[TZBUFSIZE];
+ bool large_tz = TZBUFSIZE < tzsize;
+ bool setenv_ok;
+ /* Free tz0, in case this is the 2nd or subsequent time through. */
+ free (tz0);
+ tz0 = get_tz (tz0buf);
+ z = tz1 = large_tz ? xmalloc (tzsize) : tz1buf;
+ for (s = tzbase; *s != '"'; s++)
+ *z++ = *(s += *s == '\\');
+ *z = '\0';
+ setenv_ok = setenv ("TZ", tz1, 1) == 0;
+ if (large_tz)
+ free (tz1);
+ if (!setenv_ok)
+ goto fail;
+ tz_was_altered = true;
+ p = s + 1;
+ }
+ }
+
+ /* As documented, be careful to treat the empty string just like
+ a date string of "0". Without this, an empty string would be
+ declared invalid when parsed during a DST transition. */
+ if (*p == '\0')
+ p = "0";
+
+ pc.input = p;
+ pc.year.value = tmp->tm_year;
+ pc.year.value += TM_YEAR_BASE;
+ pc.year.digits = 0;
+ pc.month = tmp->tm_mon + 1;
+ pc.day = tmp->tm_mday;
+ pc.hour = tmp->tm_hour;
+ pc.minutes = tmp->tm_min;
+ pc.seconds.tv_sec = tmp->tm_sec;
+ pc.seconds.tv_nsec = Start_ns;
+ tm.tm_isdst = tmp->tm_isdst;
+
+ pc.meridian = MER24;
+ pc.rel = RELATIVE_TIME_0;
+ pc.timespec_seen = false;
+ pc.rels_seen = false;
+ pc.dates_seen = 0;
+ pc.days_seen = 0;
+ pc.times_seen = 0;
+ pc.local_zones_seen = 0;
+ pc.dsts_seen = 0;
+ pc.zones_seen = 0;
+
+#if HAVE_STRUCT_TM_TM_ZONE
+ pc.local_time_zone_table[0].name = tmp->tm_zone;
+ pc.local_time_zone_table[0].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[0].value = tmp->tm_isdst;
+ pc.local_time_zone_table[1].name = NULL;
+
+ /* Probe the names used in the next three calendar quarters, looking
+ for a tm_isdst different from the one we already have. */
+ {
+ int quarter;
+ for (quarter = 1; quarter <= 3; quarter++)
+ {
+ time_t probe = Start + quarter * (90 * 24 * 60 * 60);
+ struct tm const *probe_tm = localtime (&probe);
+ if (probe_tm && probe_tm->tm_zone
+ && probe_tm->tm_isdst != pc.local_time_zone_table[0].value)
+ {
+ {
+ pc.local_time_zone_table[1].name = probe_tm->tm_zone;
+ pc.local_time_zone_table[1].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[1].value = probe_tm->tm_isdst;
+ pc.local_time_zone_table[2].name = NULL;
+ }
+ break;
+ }
+ }
+ }
+#else
+#if HAVE_TZNAME
+ {
+# if !HAVE_DECL_TZNAME
+ extern char *tzname[];
+# endif
+ int i;
+ for (i = 0; i < 2; i++)
+ {
+ pc.local_time_zone_table[i].name = tzname[i];
+ pc.local_time_zone_table[i].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[i].value = i;
+ }
+ pc.local_time_zone_table[i].name = NULL;
+ }
+#else
+ pc.local_time_zone_table[0].name = NULL;
+#endif
+#endif
+
+ if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
+ && ! strcmp (pc.local_time_zone_table[0].name,
+ pc.local_time_zone_table[1].name))
+ {
+ /* This locale uses the same abbrevation for standard and
+ daylight times. So if we see that abbreviation, we don't
+ know whether it's daylight time. */
+ pc.local_time_zone_table[0].value = -1;
+ pc.local_time_zone_table[1].name = NULL;
+ }
+
+ if (yyparse (&pc) != 0)
+ goto fail;
+
+ if (pc.timespec_seen)
+ *result = pc.seconds;
+ else
+ {
+ if (1 < (pc.times_seen | pc.dates_seen | pc.days_seen | pc.dsts_seen
+ | (pc.local_zones_seen + pc.zones_seen)))
+ goto fail;
+
+ tm.tm_year = to_year (pc.year) - TM_YEAR_BASE;
+ tm.tm_mon = pc.month - 1;
+ tm.tm_mday = pc.day;
+ if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen))
+ {
+ tm.tm_hour = to_hour (pc.hour, pc.meridian);
+ if (tm.tm_hour < 0)
+ goto fail;
+ tm.tm_min = pc.minutes;
+ tm.tm_sec = pc.seconds.tv_sec;
+ }
+ else
+ {
+ tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+ pc.seconds.tv_nsec = 0;
+ }
+
+ /* Let mktime deduce tm_isdst if we have an absolute time stamp. */
+ if (pc.dates_seen | pc.days_seen | pc.times_seen)
+ tm.tm_isdst = -1;
+
+ /* But if the input explicitly specifies local time with or without
+ DST, give mktime that information. */
+ if (pc.local_zones_seen)
+ tm.tm_isdst = pc.local_isdst;
+
+ tm0 = tm;
+
+ Start = mktime (&tm);
+
+ if (! mktime_ok (&tm0, &tm, Start))
+ {
+ if (! pc.zones_seen)
+ goto fail;
+ else
+ {
+ /* Guard against falsely reporting errors near the time_t
+ boundaries when parsing times in other time zones. For
+ example, suppose the input string "1969-12-31 23:00:00 -0100",
+ the current time zone is 8 hours ahead of UTC, and the min
+ time_t value is 1970-01-01 00:00:00 UTC. Then the min
+ localtime value is 1970-01-01 08:00:00, and mktime will
+ therefore fail on 1969-12-31 23:00:00. To work around the
+ problem, set the time zone to 1 hour behind UTC temporarily
+ by setting TZ="XXX1:00" and try mktime again. */
+
+ long int time_zone = pc.time_zone;
+ long int abs_time_zone = time_zone < 0 ? - time_zone : time_zone;
+ long int abs_time_zone_hour = abs_time_zone / 60;
+ int abs_time_zone_min = abs_time_zone % 60;
+ char tz1buf[sizeof "XXX+0:00"
+ + sizeof pc.time_zone * CHAR_BIT / 3];
+ if (!tz_was_altered)
+ tz0 = get_tz (tz0buf);
+ sprintf (tz1buf, "XXX%s%ld:%02d", "-" + (time_zone < 0),
+ abs_time_zone_hour, abs_time_zone_min);
+ if (setenv ("TZ", tz1buf, 1) != 0)
+ goto fail;
+ tz_was_altered = true;
+ tm = tm0;
+ Start = mktime (&tm);
+ if (! mktime_ok (&tm0, &tm, Start))
+ goto fail;
+ }
+ }
+
+ if (pc.days_seen && ! pc.dates_seen)
+ {
+ tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7
+ + 7 * (pc.day_ordinal
+ - (0 < pc.day_ordinal
+ && tm.tm_wday != pc.day_number)));
+ tm.tm_isdst = -1;
+ Start = mktime (&tm);
+ if (Start == (time_t) -1)
+ goto fail;
+ }
+
+ /* Add relative date. */
+ if (pc.rel.year | pc.rel.month | pc.rel.day)
+ {
+ int year = tm.tm_year + pc.rel.year;
+ int month = tm.tm_mon + pc.rel.month;
+ int day = tm.tm_mday + pc.rel.day;
+ if (((year < tm.tm_year) ^ (pc.rel.year < 0))
+ | ((month < tm.tm_mon) ^ (pc.rel.month < 0))
+ | ((day < tm.tm_mday) ^ (pc.rel.day < 0)))
+ goto fail;
+ tm.tm_year = year;
+ tm.tm_mon = month;
+ tm.tm_mday = day;
+ tm.tm_hour = tm0.tm_hour;
+ tm.tm_min = tm0.tm_min;
+ tm.tm_sec = tm0.tm_sec;
+ tm.tm_isdst = tm0.tm_isdst;
+ Start = mktime (&tm);
+ if (Start == (time_t) -1)
+ goto fail;
+ }
+
+ /* The only "output" of this if-block is an updated Start value,
+ so this block must follow others that clobber Start. */
+ if (pc.zones_seen)
+ {
+ long int delta = pc.time_zone * 60;
+ time_t t1;
+#ifdef HAVE_TM_GMTOFF
+ delta -= tm.tm_gmtoff;
+#else
+ time_t t = Start;
+ struct tm const *gmt = gmtime (&t);
+ if (! gmt)
+ goto fail;
+ delta -= tm_diff (&tm, gmt);
+#endif
+ t1 = Start - delta;
+ if ((Start < t1) != (delta < 0))
+ goto fail; /* time_t overflow */
+ Start = t1;
+ }
+
+ /* Add relative hours, minutes, and seconds. On hosts that support
+ leap seconds, ignore the possibility of leap seconds; e.g.,
+ "+ 10 minutes" adds 600 seconds, even if one of them is a
+ leap second. Typically this is not what the user wants, but it's
+ too hard to do it the other way, because the time zone indicator
+ must be applied before relative times, and if mktime is applied
+ again the time zone will be lost. */
+ {
+ long int sum_ns = pc.seconds.tv_nsec + pc.rel.ns;
+ long int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
+ time_t t0 = Start;
+ long int d1 = 60 * 60 * pc.rel.hour;
+ time_t t1 = t0 + d1;
+ long int d2 = 60 * pc.rel.minutes;
+ time_t t2 = t1 + d2;
+ long_time_t d3 = pc.rel.seconds;
+ long_time_t t3 = t2 + d3;
+ long int d4 = (sum_ns - normalized_ns) / BILLION;
+ long_time_t t4 = t3 + d4;
+ time_t t5 = t4;
+
+ if ((d1 / (60 * 60) ^ pc.rel.hour)
+ | (d2 / 60 ^ pc.rel.minutes)
+ | ((t1 < t0) ^ (d1 < 0))
+ | ((t2 < t1) ^ (d2 < 0))
+ | ((t3 < t2) ^ (d3 < 0))
+ | ((t4 < t3) ^ (d4 < 0))
+ | (t5 != t4))
+ goto fail;
+
+ result->tv_sec = t5;
+ result->tv_nsec = normalized_ns;
+ }
+ }
+
+ goto done;
+
+ fail:
+ ok = false;
+ done:
+ if (tz_was_altered)
+ ok &= (tz0 ? setenv ("TZ", tz0, 1) : unsetenv ("TZ")) == 0;
+ if (tz0 != tz0buf)
+ free (tz0);
+ return ok;
+}
+
+#if TEST
+
+int
+main (int ac, char **av)
+{
+ char buff[BUFSIZ];
+
+ printf ("Enter date, or blank line to exit.\n\t> ");
+ fflush (stdout);
+
+ buff[BUFSIZ - 1] = '\0';
+ while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
+ {
+ struct timespec d;
+ struct tm const *tm;
+ if (! get_date (&d, buff, NULL))
+ printf ("Bad format - couldn't convert.\n");
+ else if (! (tm = localtime (&d.tv_sec)))
+ {
+ long int sec = d.tv_sec;
+ printf ("localtime (%ld) failed\n", sec);
+ }
+ else
+ {
+ int ns = d.tv_nsec;
+ printf ("%04ld-%02d-%02d %02d:%02d:%02d.%09d\n",
+ tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec, ns);
+ }
+ printf ("\t> ");
+ fflush (stdout);
+ }
+ return 0;
+}
+#endif /* TEST */
+
diff --git a/lib/getdate.h b/lib/getdate.h
new file mode 100644
index 0000000..22cc2c0
--- /dev/null
+++ b/lib/getdate.h
@@ -0,0 +1,22 @@
+/* Parse a string into an internal time stamp.
+
+ Copyright (C) 1995, 1997, 1998, 2003, 2004, 2007, 2009, 2010 Free Software
+ Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <stdbool.h>
+#include <time.h>
+
+bool get_date (struct timespec *, char const *, struct timespec const *);
diff --git a/lib/getdate.y b/lib/getdate.y
new file mode 100644
index 0000000..445865b
--- /dev/null
+++ b/lib/getdate.y
@@ -0,0 +1,1572 @@
+%{
+/* Parse a string into an internal time stamp.
+
+ Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Originally written by Steven M. Bellovin <smb@research.att.com> while
+ at the University of North Carolina at Chapel Hill. Later tweaked by
+ a couple of people on Usenet. Completely overhauled by Rich $alz
+ <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
+
+ Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do
+ the right thing about local DST. Also modified by Paul Eggert
+ <eggert@cs.ucla.edu> in February 2004 to support
+ nanosecond-resolution time stamps, and in October 2004 to support
+ TZ strings in dates. */
+
+/* FIXME: Check for arithmetic overflow in all cases, not just
+ some of them. */
+
+#include <config.h>
+
+#include "getdate.h"
+
+#include "intprops.h"
+#include "timespec.h"
+#include "verify.h"
+
+/* There's no need to extend the stack, so there's no need to involve
+ alloca. */
+#define YYSTACK_USE_ALLOCA 0
+
+/* Tell Bison how much stack space is needed. 20 should be plenty for
+ this grammar, which is not right recursive. Beware setting it too
+ high, since that might cause problems on machines whose
+ implementations have lame stack-overflow checking. */
+#define YYMAXDEPTH 20
+#define YYINITDEPTH YYMAXDEPTH
+
+/* Since the code of getdate.y is not included in the Emacs executable
+ itself, there is no need to #define static in this file. Even if
+ the code were included in the Emacs executable, it probably
+ wouldn't do any harm to #undef it here; this will only cause
+ problems if we try to write to a static variable, which I don't
+ think this code needs to do. */
+#ifdef emacs
+# undef static
+#endif
+
+#include <c-ctype.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "xalloc.h"
+
+
+/* ISDIGIT differs from isdigit, as follows:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char
+ or EOF.
+ - It's typically faster.
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ isdigit unless it's important to use the locale's definition
+ of `digit' even when the host does not conform to POSIX. */
+#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
+
+/* Shift A right by B bits portably, by dividing A by 2**B and
+ truncating towards minus infinity. A and B should be free of side
+ effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
+ INT_BITS is the number of useful bits in an int. GNU code can
+ assume that INT_BITS is at least 32.
+
+ ISO C99 says that A >> B is implementation-defined if A < 0. Some
+ implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
+ right in the usual way when A < 0, so SHR falls back on division if
+ ordinary A >> B doesn't seem to be the usual signed shift. */
+#define SHR(a, b) \
+ (-1 >> 1 == -1 \
+ ? (a) >> (b) \
+ : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
+
+#define EPOCH_YEAR 1970
+#define TM_YEAR_BASE 1900
+
+#define HOUR(x) ((x) * 60)
+
+/* long_time_t is a signed integer type that contains all time_t values. */
+verify (TYPE_IS_INTEGER (time_t));
+#if TIME_T_FITS_IN_LONG_INT
+typedef long int long_time_t;
+#else
+typedef time_t long_time_t;
+#endif
+
+/* Lots of this code assumes time_t and time_t-like values fit into
+ long_time_t. */
+verify (TYPE_MINIMUM (long_time_t) <= TYPE_MINIMUM (time_t)
+ && TYPE_MAXIMUM (time_t) <= TYPE_MAXIMUM (long_time_t));
+
+/* FIXME: It also assumes that signed integer overflow silently wraps around,
+ but this is not true any more with recent versions of GCC 4. */
+
+/* An integer value, and the number of digits in its textual
+ representation. */
+typedef struct
+{
+ bool negative;
+ long int value;
+ size_t digits;
+} textint;
+
+/* An entry in the lexical lookup table. */
+typedef struct
+{
+ char const *name;
+ int type;
+ int value;
+} table;
+
+/* Meridian: am, pm, or 24-hour style. */
+enum { MERam, MERpm, MER24 };
+
+enum { BILLION = 1000000000, LOG10_BILLION = 9 };
+
+/* Relative times. */
+typedef struct
+{
+ /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
+ long int year;
+ long int month;
+ long int day;
+ long int hour;
+ long int minutes;
+ long_time_t seconds;
+ long int ns;
+} relative_time;
+
+#if HAVE_COMPOUND_LITERALS
+# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 })
+#else
+static relative_time const RELATIVE_TIME_0;
+#endif
+
+/* Information passed to and from the parser. */
+typedef struct
+{
+ /* The input string remaining to be parsed. */
+ const char *input;
+
+ /* N, if this is the Nth Tuesday. */
+ long int day_ordinal;
+
+ /* Day of week; Sunday is 0. */
+ int day_number;
+
+ /* tm_isdst flag for the local zone. */
+ int local_isdst;
+
+ /* Time zone, in minutes east of UTC. */
+ long int time_zone;
+
+ /* Style used for time. */
+ int meridian;
+
+ /* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */
+ textint year;
+ long int month;
+ long int day;
+ long int hour;
+ long int minutes;
+ struct timespec seconds; /* includes nanoseconds */
+
+ /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
+ relative_time rel;
+
+ /* Presence or counts of nonterminals of various flavors parsed so far. */
+ bool timespec_seen;
+ bool rels_seen;
+ size_t dates_seen;
+ size_t days_seen;
+ size_t local_zones_seen;
+ size_t dsts_seen;
+ size_t times_seen;
+ size_t zones_seen;
+
+ /* Table of local time zone abbrevations, terminated by a null entry. */
+ table local_time_zone_table[3];
+} parser_control;
+
+union YYSTYPE;
+static int yylex (union YYSTYPE *, parser_control *);
+static int yyerror (parser_control const *, char const *);
+static long int time_zone_hhmm (parser_control *, textint, long int);
+
+/* Extract into *PC any date and time info from a string of digits
+ of the form e.g., YYYYMMDD, YYMMDD, HHMM, HH (and sometimes YYY,
+ YYYY, ...). */
+static void
+digits_to_date_time (parser_control *pc, textint text_int)
+{
+ if (pc->dates_seen && ! pc->year.digits
+ && ! pc->rels_seen && (pc->times_seen || 2 < text_int.digits))
+ pc->year = text_int;
+ else
+ {
+ if (4 < text_int.digits)
+ {
+ pc->dates_seen++;
+ pc->day = text_int.value % 100;
+ pc->month = (text_int.value / 100) % 100;
+ pc->year.value = text_int.value / 10000;
+ pc->year.digits = text_int.digits - 4;
+ }
+ else
+ {
+ pc->times_seen++;
+ if (text_int.digits <= 2)
+ {
+ pc->hour = text_int.value;
+ pc->minutes = 0;
+ }
+ else
+ {
+ pc->hour = text_int.value / 100;
+ pc->minutes = text_int.value % 100;
+ }
+ pc->seconds.tv_sec = 0;
+ pc->seconds.tv_nsec = 0;
+ pc->meridian = MER24;
+ }
+ }
+}
+
+/* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1). */
+static void
+apply_relative_time (parser_control *pc, relative_time rel, int factor)
+{
+ pc->rel.ns += factor * rel.ns;
+ pc->rel.seconds += factor * rel.seconds;
+ pc->rel.minutes += factor * rel.minutes;
+ pc->rel.hour += factor * rel.hour;
+ pc->rel.day += factor * rel.day;
+ pc->rel.month += factor * rel.month;
+ pc->rel.year += factor * rel.year;
+ pc->rels_seen = true;
+}
+
+/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */
+static void
+set_hhmmss (parser_control *pc, long int hour, long int minutes,
+ time_t sec, long int nsec)
+{
+ pc->hour = hour;
+ pc->minutes = minutes;
+ pc->seconds.tv_sec = sec;
+ pc->seconds.tv_nsec = nsec;
+}
+
+%}
+
+/* We want a reentrant parser, even if the TZ manipulation and the calls to
+ localtime and gmtime are not reentrant. */
+%pure-parser
+%parse-param { parser_control *pc }
+%lex-param { parser_control *pc }
+
+/* This grammar has 20 shift/reduce conflicts. */
+%expect 20
+
+%union
+{
+ long int intval;
+ textint textintval;
+ struct timespec timespec;
+ relative_time rel;
+}
+
+%token tAGO tDST
+
+%token tYEAR_UNIT tMONTH_UNIT tHOUR_UNIT tMINUTE_UNIT tSEC_UNIT
+%token <intval> tDAY_UNIT tDAY_SHIFT
+
+%token <intval> tDAY tDAYZONE tLOCAL_ZONE tMERIDIAN
+%token <intval> tMONTH tORDINAL tZONE
+
+%token <textintval> tSNUMBER tUNUMBER
+%token <timespec> tSDECIMAL_NUMBER tUDECIMAL_NUMBER
+
+%type <intval> o_colon_minutes o_merid
+%type <timespec> seconds signed_seconds unsigned_seconds
+
+%type <rel> relunit relunit_snumber dayshift
+
+%%
+
+spec:
+ timespec
+ | items
+ ;
+
+timespec:
+ '@' seconds
+ {
+ pc->seconds = $2;
+ pc->timespec_seen = true;
+ }
+ ;
+
+items:
+ /* empty */
+ | items item
+ ;
+
+item:
+ time
+ { pc->times_seen++; }
+ | local_zone
+ { pc->local_zones_seen++; }
+ | zone
+ { pc->zones_seen++; }
+ | date
+ { pc->dates_seen++; }
+ | day
+ { pc->days_seen++; }
+ | rel
+ | number
+ | hybrid
+ ;
+
+time:
+ tUNUMBER tMERIDIAN
+ {
+ set_hhmmss (pc, $1.value, 0, 0, 0);
+ pc->meridian = $2;
+ }
+ | tUNUMBER ':' tUNUMBER o_merid
+ {
+ set_hhmmss (pc, $1.value, $3.value, 0, 0);
+ pc->meridian = $4;
+ }
+ | tUNUMBER ':' tUNUMBER tSNUMBER o_colon_minutes
+ {
+ set_hhmmss (pc, $1.value, $3.value, 0, 0);
+ pc->meridian = MER24;
+ pc->zones_seen++;
+ pc->time_zone = time_zone_hhmm (pc, $4, $5);
+ }
+ | tUNUMBER ':' tUNUMBER ':' unsigned_seconds o_merid
+ {
+ set_hhmmss (pc, $1.value, $3.value, $5.tv_sec, $5.tv_nsec);
+ pc->meridian = $6;
+ }
+ | tUNUMBER ':' tUNUMBER ':' unsigned_seconds tSNUMBER o_colon_minutes
+ {
+ set_hhmmss (pc, $1.value, $3.value, $5.tv_sec, $5.tv_nsec);
+ pc->meridian = MER24;
+ pc->zones_seen++;
+ pc->time_zone = time_zone_hhmm (pc, $6, $7);
+ }
+ ;
+
+local_zone:
+ tLOCAL_ZONE
+ {
+ pc->local_isdst = $1;
+ pc->dsts_seen += (0 < $1);
+ }
+ | tLOCAL_ZONE tDST
+ {
+ pc->local_isdst = 1;
+ pc->dsts_seen += (0 < $1) + 1;
+ }
+ ;
+
+zone:
+ tZONE
+ { pc->time_zone = $1; }
+ | tZONE relunit_snumber
+ { pc->time_zone = $1;
+ apply_relative_time (pc, $2, 1); }
+ | tZONE tSNUMBER o_colon_minutes
+ { pc->time_zone = $1 + time_zone_hhmm (pc, $2, $3); }
+ | tDAYZONE
+ { pc->time_zone = $1 + 60; }
+ | tZONE tDST
+ { pc->time_zone = $1 + 60; }
+ ;
+
+day:
+ tDAY
+ {
+ pc->day_ordinal = 0;
+ pc->day_number = $1;
+ }
+ | tDAY ','
+ {
+ pc->day_ordinal = 0;
+ pc->day_number = $1;
+ }
+ | tORDINAL tDAY
+ {
+ pc->day_ordinal = $1;
+ pc->day_number = $2;
+ }
+ | tUNUMBER tDAY
+ {
+ pc->day_ordinal = $1.value;
+ pc->day_number = $2;
+ }
+ ;
+
+date:
+ tUNUMBER '/' tUNUMBER
+ {
+ pc->month = $1.value;
+ pc->day = $3.value;
+ }
+ | tUNUMBER '/' tUNUMBER '/' tUNUMBER
+ {
+ /* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
+ otherwise as MM/DD/YY.
+ The goal in recognizing YYYY/MM/DD is solely to support legacy
+ machine-generated dates like those in an RCS log listing. If
+ you want portability, use the ISO 8601 format. */
+ if (4 <= $1.digits)
+ {
+ pc->year = $1;
+ pc->month = $3.value;
+ pc->day = $5.value;
+ }
+ else
+ {
+ pc->month = $1.value;
+ pc->day = $3.value;
+ pc->year = $5;
+ }
+ }
+ | tUNUMBER tSNUMBER tSNUMBER
+ {
+ /* ISO 8601 format. YYYY-MM-DD. */
+ pc->year = $1;
+ pc->month = -$2.value;
+ pc->day = -$3.value;
+ }
+ | tUNUMBER tMONTH tSNUMBER
+ {
+ /* e.g. 17-JUN-1992. */
+ pc->day = $1.value;
+ pc->month = $2;
+ pc->year.value = -$3.value;
+ pc->year.digits = $3.digits;
+ }
+ | tMONTH tSNUMBER tSNUMBER
+ {
+ /* e.g. JUN-17-1992. */
+ pc->month = $1;
+ pc->day = -$2.value;
+ pc->year.value = -$3.value;
+ pc->year.digits = $3.digits;
+ }
+ | tMONTH tUNUMBER
+ {
+ pc->month = $1;
+ pc->day = $2.value;
+ }
+ | tMONTH tUNUMBER ',' tUNUMBER
+ {
+ pc->month = $1;
+ pc->day = $2.value;
+ pc->year = $4;
+ }
+ | tUNUMBER tMONTH
+ {
+ pc->day = $1.value;
+ pc->month = $2;
+ }
+ | tUNUMBER tMONTH tUNUMBER
+ {
+ pc->day = $1.value;
+ pc->month = $2;
+ pc->year = $3;
+ }
+ ;
+
+rel:
+ relunit tAGO
+ { apply_relative_time (pc, $1, -1); }
+ | relunit
+ { apply_relative_time (pc, $1, 1); }
+ | dayshift
+ { apply_relative_time (pc, $1, 1); }
+ ;
+
+relunit:
+ tORDINAL tYEAR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.year = $1; }
+ | tUNUMBER tYEAR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.year = $1.value; }
+ | tYEAR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.year = 1; }
+ | tORDINAL tMONTH_UNIT
+ { $$ = RELATIVE_TIME_0; $$.month = $1; }
+ | tUNUMBER tMONTH_UNIT
+ { $$ = RELATIVE_TIME_0; $$.month = $1.value; }
+ | tMONTH_UNIT
+ { $$ = RELATIVE_TIME_0; $$.month = 1; }
+ | tORDINAL tDAY_UNIT
+ { $$ = RELATIVE_TIME_0; $$.day = $1 * $2; }
+ | tUNUMBER tDAY_UNIT
+ { $$ = RELATIVE_TIME_0; $$.day = $1.value * $2; }
+ | tDAY_UNIT
+ { $$ = RELATIVE_TIME_0; $$.day = $1; }
+ | tORDINAL tHOUR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.hour = $1; }
+ | tUNUMBER tHOUR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.hour = $1.value; }
+ | tHOUR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.hour = 1; }
+ | tORDINAL tMINUTE_UNIT
+ { $$ = RELATIVE_TIME_0; $$.minutes = $1; }
+ | tUNUMBER tMINUTE_UNIT
+ { $$ = RELATIVE_TIME_0; $$.minutes = $1.value; }
+ | tMINUTE_UNIT
+ { $$ = RELATIVE_TIME_0; $$.minutes = 1; }
+ | tORDINAL tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = $1; }
+ | tUNUMBER tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = $1.value; }
+ | tSDECIMAL_NUMBER tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = $1.tv_sec; $$.ns = $1.tv_nsec; }
+ | tUDECIMAL_NUMBER tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = $1.tv_sec; $$.ns = $1.tv_nsec; }
+ | tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = 1; }
+ | relunit_snumber
+ ;
+
+relunit_snumber:
+ tSNUMBER tYEAR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.year = $1.value; }
+ | tSNUMBER tMONTH_UNIT
+ { $$ = RELATIVE_TIME_0; $$.month = $1.value; }
+ | tSNUMBER tDAY_UNIT
+ { $$ = RELATIVE_TIME_0; $$.day = $1.value * $2; }
+ | tSNUMBER tHOUR_UNIT
+ { $$ = RELATIVE_TIME_0; $$.hour = $1.value; }
+ | tSNUMBER tMINUTE_UNIT
+ { $$ = RELATIVE_TIME_0; $$.minutes = $1.value; }
+ | tSNUMBER tSEC_UNIT
+ { $$ = RELATIVE_TIME_0; $$.seconds = $1.value; }
+ ;
+
+dayshift:
+ tDAY_SHIFT
+ { $$ = RELATIVE_TIME_0; $$.day = $1; }
+ ;
+
+seconds: signed_seconds | unsigned_seconds;
+
+signed_seconds:
+ tSDECIMAL_NUMBER
+ | tSNUMBER
+ { $$.tv_sec = $1.value; $$.tv_nsec = 0; }
+ ;
+
+unsigned_seconds:
+ tUDECIMAL_NUMBER
+ | tUNUMBER
+ { $$.tv_sec = $1.value; $$.tv_nsec = 0; }
+ ;
+
+number:
+ tUNUMBER
+ { digits_to_date_time (pc, $1); }
+ ;
+
+hybrid:
+ tUNUMBER relunit_snumber
+ {
+ /* Hybrid all-digit and relative offset, so that we accept e.g.,
+ "YYYYMMDD +N days" as well as "YYYYMMDD N days". */
+ digits_to_date_time (pc, $1);
+ apply_relative_time (pc, $2, 1);
+ }
+ ;
+
+o_colon_minutes:
+ /* empty */
+ { $$ = -1; }
+ | ':' tUNUMBER
+ { $$ = $2.value; }
+ ;
+
+o_merid:
+ /* empty */
+ { $$ = MER24; }
+ | tMERIDIAN
+ { $$ = $1; }
+ ;
+
+%%
+
+static table const meridian_table[] =
+{
+ { "AM", tMERIDIAN, MERam },
+ { "A.M.", tMERIDIAN, MERam },
+ { "PM", tMERIDIAN, MERpm },
+ { "P.M.", tMERIDIAN, MERpm },
+ { NULL, 0, 0 }
+};
+
+static table const dst_table[] =
+{
+ { "DST", tDST, 0 }
+};
+
+static table const month_and_day_table[] =
+{
+ { "JANUARY", tMONTH, 1 },
+ { "FEBRUARY", tMONTH, 2 },
+ { "MARCH", tMONTH, 3 },
+ { "APRIL", tMONTH, 4 },
+ { "MAY", tMONTH, 5 },
+ { "JUNE", tMONTH, 6 },
+ { "JULY", tMONTH, 7 },
+ { "AUGUST", tMONTH, 8 },
+ { "SEPTEMBER",tMONTH, 9 },
+ { "SEPT", tMONTH, 9 },
+ { "OCTOBER", tMONTH, 10 },
+ { "NOVEMBER", tMONTH, 11 },
+ { "DECEMBER", tMONTH, 12 },
+ { "SUNDAY", tDAY, 0 },
+ { "MONDAY", tDAY, 1 },
+ { "TUESDAY", tDAY, 2 },
+ { "TUES", tDAY, 2 },
+ { "WEDNESDAY",tDAY, 3 },
+ { "WEDNES", tDAY, 3 },
+ { "THURSDAY", tDAY, 4 },
+ { "THUR", tDAY, 4 },
+ { "THURS", tDAY, 4 },
+ { "FRIDAY", tDAY, 5 },
+ { "SATURDAY", tDAY, 6 },
+ { NULL, 0, 0 }
+};
+
+static table const time_units_table[] =
+{
+ { "YEAR", tYEAR_UNIT, 1 },
+ { "MONTH", tMONTH_UNIT, 1 },
+ { "FORTNIGHT",tDAY_UNIT, 14 },
+ { "WEEK", tDAY_UNIT, 7 },
+ { "DAY", tDAY_UNIT, 1 },
+ { "HOUR", tHOUR_UNIT, 1 },
+ { "MINUTE", tMINUTE_UNIT, 1 },
+ { "MIN", tMINUTE_UNIT, 1 },
+ { "SECOND", tSEC_UNIT, 1 },
+ { "SEC", tSEC_UNIT, 1 },
+ { NULL, 0, 0 }
+};
+
+/* Assorted relative-time words. */
+static table const relative_time_table[] =
+{
+ { "TOMORROW", tDAY_SHIFT, 1 },
+ { "YESTERDAY",tDAY_SHIFT, -1 },
+ { "TODAY", tDAY_SHIFT, 0 },
+ { "NOW", tDAY_SHIFT, 0 },
+ { "LAST", tORDINAL, -1 },
+ { "THIS", tORDINAL, 0 },
+ { "NEXT", tORDINAL, 1 },
+ { "FIRST", tORDINAL, 1 },
+/*{ "SECOND", tORDINAL, 2 }, */
+ { "THIRD", tORDINAL, 3 },
+ { "FOURTH", tORDINAL, 4 },
+ { "FIFTH", tORDINAL, 5 },
+ { "SIXTH", tORDINAL, 6 },
+ { "SEVENTH", tORDINAL, 7 },
+ { "EIGHTH", tORDINAL, 8 },
+ { "NINTH", tORDINAL, 9 },
+ { "TENTH", tORDINAL, 10 },
+ { "ELEVENTH", tORDINAL, 11 },
+ { "TWELFTH", tORDINAL, 12 },
+ { "AGO", tAGO, 1 },
+ { NULL, 0, 0 }
+};
+
+/* The universal time zone table. These labels can be used even for
+ time stamps that would not otherwise be valid, e.g., GMT time
+ stamps in London during summer. */
+static table const universal_time_zone_table[] =
+{
+ { "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */
+ { "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */
+ { "UTC", tZONE, HOUR ( 0) },
+ { NULL, 0, 0 }
+};
+
+/* The time zone table. This table is necessarily incomplete, as time
+ zone abbreviations are ambiguous; e.g. Australians interpret "EST"
+ as Eastern time in Australia, not as US Eastern Standard Time.
+ You cannot rely on getdate to handle arbitrary time zone
+ abbreviations; use numeric abbreviations like `-0500' instead. */
+static table const time_zone_table[] =
+{
+ { "WET", tZONE, HOUR ( 0) }, /* Western European */
+ { "WEST", tDAYZONE, HOUR ( 0) }, /* Western European Summer */
+ { "BST", tDAYZONE, HOUR ( 0) }, /* British Summer */
+ { "ART", tZONE, -HOUR ( 3) }, /* Argentina */
+ { "BRT", tZONE, -HOUR ( 3) }, /* Brazil */
+ { "BRST", tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */
+ { "NST", tZONE, -(HOUR ( 3) + 30) }, /* Newfoundland Standard */
+ { "NDT", tDAYZONE,-(HOUR ( 3) + 30) }, /* Newfoundland Daylight */
+ { "AST", tZONE, -HOUR ( 4) }, /* Atlantic Standard */
+ { "ADT", tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */
+ { "CLT", tZONE, -HOUR ( 4) }, /* Chile */
+ { "CLST", tDAYZONE, -HOUR ( 4) }, /* Chile Summer */
+ { "EST", tZONE, -HOUR ( 5) }, /* Eastern Standard */
+ { "EDT", tDAYZONE, -HOUR ( 5) }, /* Eastern Daylight */
+ { "CST", tZONE, -HOUR ( 6) }, /* Central Standard */
+ { "CDT", tDAYZONE, -HOUR ( 6) }, /* Central Daylight */
+ { "MST", tZONE, -HOUR ( 7) }, /* Mountain Standard */
+ { "MDT", tDAYZONE, -HOUR ( 7) }, /* Mountain Daylight */
+ { "PST", tZONE, -HOUR ( 8) }, /* Pacific Standard */
+ { "PDT", tDAYZONE, -HOUR ( 8) }, /* Pacific Daylight */
+ { "AKST", tZONE, -HOUR ( 9) }, /* Alaska Standard */
+ { "AKDT", tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */
+ { "HST", tZONE, -HOUR (10) }, /* Hawaii Standard */
+ { "HAST", tZONE, -HOUR (10) }, /* Hawaii-Aleutian Standard */
+ { "HADT", tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */
+ { "SST", tZONE, -HOUR (12) }, /* Samoa Standard */
+ { "WAT", tZONE, HOUR ( 1) }, /* West Africa */
+ { "CET", tZONE, HOUR ( 1) }, /* Central European */
+ { "CEST", tDAYZONE, HOUR ( 1) }, /* Central European Summer */
+ { "MET", tZONE, HOUR ( 1) }, /* Middle European */
+ { "MEZ", tZONE, HOUR ( 1) }, /* Middle European */
+ { "MEST", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
+ { "MESZ", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */
+ { "EET", tZONE, HOUR ( 2) }, /* Eastern European */
+ { "EEST", tDAYZONE, HOUR ( 2) }, /* Eastern European Summer */
+ { "CAT", tZONE, HOUR ( 2) }, /* Central Africa */
+ { "SAST", tZONE, HOUR ( 2) }, /* South Africa Standard */
+ { "EAT", tZONE, HOUR ( 3) }, /* East Africa */
+ { "MSK", tZONE, HOUR ( 3) }, /* Moscow */
+ { "MSD", tDAYZONE, HOUR ( 3) }, /* Moscow Daylight */
+ { "IST", tZONE, (HOUR ( 5) + 30) }, /* India Standard */
+ { "SGT", tZONE, HOUR ( 8) }, /* Singapore */
+ { "KST", tZONE, HOUR ( 9) }, /* Korea Standard */
+ { "JST", tZONE, HOUR ( 9) }, /* Japan Standard */
+ { "GST", tZONE, HOUR (10) }, /* Guam Standard */
+ { "NZST", tZONE, HOUR (12) }, /* New Zealand Standard */
+ { "NZDT", tDAYZONE, HOUR (12) }, /* New Zealand Daylight */
+ { NULL, 0, 0 }
+};
+
+/* Military time zone table. */
+static table const military_table[] =
+{
+ { "A", tZONE, -HOUR ( 1) },
+ { "B", tZONE, -HOUR ( 2) },
+ { "C", tZONE, -HOUR ( 3) },
+ { "D", tZONE, -HOUR ( 4) },
+ { "E", tZONE, -HOUR ( 5) },
+ { "F", tZONE, -HOUR ( 6) },
+ { "G", tZONE, -HOUR ( 7) },
+ { "H", tZONE, -HOUR ( 8) },
+ { "I", tZONE, -HOUR ( 9) },
+ { "K", tZONE, -HOUR (10) },
+ { "L", tZONE, -HOUR (11) },
+ { "M", tZONE, -HOUR (12) },
+ { "N", tZONE, HOUR ( 1) },
+ { "O", tZONE, HOUR ( 2) },
+ { "P", tZONE, HOUR ( 3) },
+ { "Q", tZONE, HOUR ( 4) },
+ { "R", tZONE, HOUR ( 5) },
+ { "S", tZONE, HOUR ( 6) },
+ { "T", tZONE, HOUR ( 7) },
+ { "U", tZONE, HOUR ( 8) },
+ { "V", tZONE, HOUR ( 9) },
+ { "W", tZONE, HOUR (10) },
+ { "X", tZONE, HOUR (11) },
+ { "Y", tZONE, HOUR (12) },
+ { "Z", tZONE, HOUR ( 0) },
+ { NULL, 0, 0 }
+};
+
+\f
+
+/* Convert a time zone expressed as HH:MM into an integer count of
+ minutes. If MM is negative, then S is of the form HHMM and needs
+ to be picked apart; otherwise, S is of the form HH. As specified in
+ http://www.opengroup.org/susv3xbd/xbd_chap08.html#tag_08_03, allow
+ only valid TZ range, and consider first two digits as hours, if no
+ minutes specified. */
+
+static long int
+time_zone_hhmm (parser_control *pc, textint s, long int mm)
+{
+ long int n_minutes;
+
+ /* If the length of S is 1 or 2 and no minutes are specified,
+ interpret it as a number of hours. */
+ if (s.digits <= 2 && mm < 0)
+ s.value *= 100;
+
+ if (mm < 0)
+ n_minutes = (s.value / 100) * 60 + s.value % 100;
+ else
+ n_minutes = s.value * 60 + (s.negative ? -mm : mm);
+
+ /* If the absolute number of minutes is larger than 24 hours,
+ arrange to reject it by incrementing pc->zones_seen. Thus,
+ we allow only values in the range UTC-24:00 to UTC+24:00. */
+ if (24 * 60 < abs (n_minutes))
+ pc->zones_seen++;
+
+ return n_minutes;
+}
+
+static int
+to_hour (long int hours, int meridian)
+{
+ switch (meridian)
+ {
+ default: /* Pacify GCC. */
+ case MER24:
+ return 0 <= hours && hours < 24 ? hours : -1;
+ case MERam:
+ return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
+ case MERpm:
+ return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
+ }
+}
+
+static long int
+to_year (textint textyear)
+{
+ long int year = textyear.value;
+
+ if (year < 0)
+ year = -year;
+
+ /* XPG4 suggests that years 00-68 map to 2000-2068, and
+ years 69-99 map to 1969-1999. */
+ else if (textyear.digits == 2)
+ year += year < 69 ? 2000 : 1900;
+
+ return year;
+}
+
+static table const *
+lookup_zone (parser_control const *pc, char const *name)
+{
+ table const *tp;
+
+ for (tp = universal_time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ /* Try local zone abbreviations before those in time_zone_table, as
+ the local ones are more likely to be right. */
+ for (tp = pc->local_time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ for (tp = time_zone_table; tp->name; tp++)
+ if (strcmp (name, tp->name) == 0)
+ return tp;
+
+ return NULL;
+}
+
+#if ! HAVE_TM_GMTOFF
+/* Yield the difference between *A and *B,
+ measured in seconds, ignoring leap seconds.
+ The body of this function is taken directly from the GNU C Library;
+ see src/strftime.c. */
+static long int
+tm_diff (struct tm const *a, struct tm const *b)
+{
+ /* Compute intervening leap days correctly even if year is negative.
+ Take care to avoid int overflow in leap day calculations. */
+ int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
+ int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
+ int a100 = a4 / 25 - (a4 % 25 < 0);
+ int b100 = b4 / 25 - (b4 % 25 < 0);
+ int a400 = SHR (a100, 2);
+ int b400 = SHR (b100, 2);
+ int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
+ long int ayear = a->tm_year;
+ long int years = ayear - b->tm_year;
+ long int days = (365 * years + intervening_leap_days
+ + (a->tm_yday - b->tm_yday));
+ return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
+ + (a->tm_min - b->tm_min))
+ + (a->tm_sec - b->tm_sec));
+}
+#endif /* ! HAVE_TM_GMTOFF */
+
+static table const *
+lookup_word (parser_control const *pc, char *word)
+{
+ char *p;
+ char *q;
+ size_t wordlen;
+ table const *tp;
+ bool period_found;
+ bool abbrev;
+
+ /* Make it uppercase. */
+ for (p = word; *p; p++)
+ {
+ unsigned char ch = *p;
+ *p = c_toupper (ch);
+ }
+
+ for (tp = meridian_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* See if we have an abbreviation for a month. */
+ wordlen = strlen (word);
+ abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
+
+ for (tp = month_and_day_table; tp->name; tp++)
+ if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
+ return tp;
+
+ if ((tp = lookup_zone (pc, word)))
+ return tp;
+
+ if (strcmp (word, dst_table[0].name) == 0)
+ return dst_table;
+
+ for (tp = time_units_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* Strip off any plural and try the units table again. */
+ if (word[wordlen - 1] == 'S')
+ {
+ word[wordlen - 1] = '\0';
+ for (tp = time_units_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+ word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */
+ }
+
+ for (tp = relative_time_table; tp->name; tp++)
+ if (strcmp (word, tp->name) == 0)
+ return tp;
+
+ /* Military time zones. */
+ if (wordlen == 1)
+ for (tp = military_table; tp->name; tp++)
+ if (word[0] == tp->name[0])
+ return tp;
+
+ /* Drop out any periods and try the time zone table again. */
+ for (period_found = false, p = q = word; (*p = *q); q++)
+ if (*q == '.')
+ period_found = true;
+ else
+ p++;
+ if (period_found && (tp = lookup_zone (pc, word)))
+ return tp;
+
+ return NULL;
+}
+
+static int
+yylex (YYSTYPE *lvalp, parser_control *pc)
+{
+ unsigned char c;
+ size_t count;
+
+ for (;;)
+ {
+ while (c = *pc->input, c_isspace (c))
+ pc->input++;
+
+ if (ISDIGIT (c) || c == '-' || c == '+')
+ {
+ char const *p;
+ int sign;
+ unsigned long int value;
+ if (c == '-' || c == '+')
+ {
+ sign = c == '-' ? -1 : 1;
+ while (c = *++pc->input, c_isspace (c))
+ continue;
+ if (! ISDIGIT (c))
+ /* skip the '-' sign */
+ continue;
+ }
+ else
+ sign = 0;
+ p = pc->input;
+ for (value = 0; ; value *= 10)
+ {
+ unsigned long int value1 = value + (c - '0');
+ if (value1 < value)
+ return '?';
+ value = value1;
+ c = *++p;
+ if (! ISDIGIT (c))
+ break;
+ if (ULONG_MAX / 10 < value)
+ return '?';
+ }
+ if ((c == '.' || c == ',') && ISDIGIT (p[1]))
+ {
+ time_t s;
+ int ns;
+ int digits;
+ unsigned long int value1;
+
+ /* Check for overflow when converting value to time_t. */
+ if (sign < 0)
+ {
+ s = - value;
+ if (0 < s)
+ return '?';
+ value1 = -s;
+ }
+ else
+ {
+ s = value;
+ if (s < 0)
+ return '?';
+ value1 = s;
+ }
+ if (value != value1)
+ return '?';
+
+ /* Accumulate fraction, to ns precision. */
+ p++;
+ ns = *p++ - '0';
+ for (digits = 2; digits <= LOG10_BILLION; digits++)
+ {
+ ns *= 10;
+ if (ISDIGIT (*p))
+ ns += *p++ - '0';
+ }
+
+ /* Skip excess digits, truncating toward -Infinity. */
+ if (sign < 0)
+ for (; ISDIGIT (*p); p++)
+ if (*p != '0')
+ {
+ ns++;
+ break;
+ }
+ while (ISDIGIT (*p))
+ p++;
+
+ /* Adjust to the timespec convention, which is that
+ tv_nsec is always a positive offset even if tv_sec is
+ negative. */
+ if (sign < 0 && ns)
+ {
+ s--;
+ if (! (s < 0))
+ return '?';
+ ns = BILLION - ns;
+ }
+
+ lvalp->timespec.tv_sec = s;
+ lvalp->timespec.tv_nsec = ns;
+ pc->input = p;
+ return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER;
+ }
+ else
+ {
+ lvalp->textintval.negative = sign < 0;
+ if (sign < 0)
+ {
+ lvalp->textintval.value = - value;
+ if (0 < lvalp->textintval.value)
+ return '?';
+ }
+ else
+ {
+ lvalp->textintval.value = value;
+ if (lvalp->textintval.value < 0)
+ return '?';
+ }
+ lvalp->textintval.digits = p - pc->input;
+ pc->input = p;
+ return sign ? tSNUMBER : tUNUMBER;
+ }
+ }
+
+ if (c_isalpha (c))
+ {
+ char buff[20];
+ char *p = buff;
+ table const *tp;
+
+ do
+ {
+ if (p < buff + sizeof buff - 1)
+ *p++ = c;
+ c = *++pc->input;
+ }
+ while (c_isalpha (c) || c == '.');
+
+ *p = '\0';
+ tp = lookup_word (pc, buff);
+ if (! tp)
+ return '?';
+ lvalp->intval = tp->value;
+ return tp->type;
+ }
+
+ if (c != '(')
+ return *pc->input++;
+ count = 0;
+ do
+ {
+ c = *pc->input++;
+ if (c == '\0')
+ return c;
+ if (c == '(')
+ count++;
+ else if (c == ')')
+ count--;
+ }
+ while (count != 0);
+ }
+}
+
+/* Do nothing if the parser reports an error. */
+static int
+yyerror (parser_control const *pc _GL_UNUSED,
+ char const *s _GL_UNUSED)
+{
+ return 0;
+}
+
+/* If *TM0 is the old and *TM1 is the new value of a struct tm after
+ passing it to mktime, return true if it's OK that mktime returned T.
+ It's not OK if *TM0 has out-of-range members. */
+
+static bool
+mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
+{
+ if (t == (time_t) -1)
+ {
+ /* Guard against falsely reporting an error when parsing a time
+ stamp that happens to equal (time_t) -1, on a host that
+ supports such a time stamp. */
+ tm1 = localtime (&t);
+ if (!tm1)
+ return false;
+ }
+
+ return ! ((tm0->tm_sec ^ tm1->tm_sec)
+ | (tm0->tm_min ^ tm1->tm_min)
+ | (tm0->tm_hour ^ tm1->tm_hour)
+ | (tm0->tm_mday ^ tm1->tm_mday)
+ | (tm0->tm_mon ^ tm1->tm_mon)
+ | (tm0->tm_year ^ tm1->tm_year));
+}
+
+/* A reasonable upper bound for the size of ordinary TZ strings.
+ Use heap allocation if TZ's length exceeds this. */
+enum { TZBUFSIZE = 100 };
+
+/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
+ otherwise. */
+static char *
+get_tz (char tzbuf[TZBUFSIZE])
+{
+ char *tz = getenv ("TZ");
+ if (tz)
+ {
+ size_t tzsize = strlen (tz) + 1;
+ tz = (tzsize <= TZBUFSIZE
+ ? memcpy (tzbuf, tz, tzsize)
+ : xmemdup (tz, tzsize));
+ }
+ return tz;
+}
+
+/* Parse a date/time string, storing the resulting time value into *RESULT.
+ The string itself is pointed to by P. Return true if successful.
+ P can be an incomplete or relative time specification; if so, use
+ *NOW as the basis for the returned time. */
+bool
+get_date (struct timespec *result, char const *p, struct timespec const *now)
+{
+ time_t Start;
+ long int Start_ns;
+ struct tm const *tmp;
+ struct tm tm;
+ struct tm tm0;
+ parser_control pc;
+ struct timespec gettime_buffer;
+ unsigned char c;
+ bool tz_was_altered = false;
+ char *tz0 = NULL;
+ char tz0buf[TZBUFSIZE];
+ bool ok = true;
+
+ if (! now)
+ {
+ gettime (&gettime_buffer);
+ now = &gettime_buffer;
+ }
+
+ Start = now->tv_sec;
+ Start_ns = now->tv_nsec;
+
+ tmp = localtime (&now->tv_sec);
+ if (! tmp)
+ return false;
+
+ while (c = *p, c_isspace (c))
+ p++;
+
+ if (strncmp (p, "TZ=\"", 4) == 0)
+ {
+ char const *tzbase = p + 4;
+ size_t tzsize = 1;
+ char const *s;
+
+ for (s = tzbase; *s; s++, tzsize++)
+ if (*s == '\\')
+ {
+ s++;
+ if (! (*s == '\\' || *s == '"'))
+ break;
+ }
+ else if (*s == '"')
+ {
+ char *z;
+ char *tz1;
+ char tz1buf[TZBUFSIZE];
+ bool large_tz = TZBUFSIZE < tzsize;
+ bool setenv_ok;
+ /* Free tz0, in case this is the 2nd or subsequent time through. */
+ free (tz0);
+ tz0 = get_tz (tz0buf);
+ z = tz1 = large_tz ? xmalloc (tzsize) : tz1buf;
+ for (s = tzbase; *s != '"'; s++)
+ *z++ = *(s += *s == '\\');
+ *z = '\0';
+ setenv_ok = setenv ("TZ", tz1, 1) == 0;
+ if (large_tz)
+ free (tz1);
+ if (!setenv_ok)
+ goto fail;
+ tz_was_altered = true;
+ p = s + 1;
+ }
+ }
+
+ /* As documented, be careful to treat the empty string just like
+ a date string of "0". Without this, an empty string would be
+ declared invalid when parsed during a DST transition. */
+ if (*p == '\0')
+ p = "0";
+
+ pc.input = p;
+ pc.year.value = tmp->tm_year;
+ pc.year.value += TM_YEAR_BASE;
+ pc.year.digits = 0;
+ pc.month = tmp->tm_mon + 1;
+ pc.day = tmp->tm_mday;
+ pc.hour = tmp->tm_hour;
+ pc.minutes = tmp->tm_min;
+ pc.seconds.tv_sec = tmp->tm_sec;
+ pc.seconds.tv_nsec = Start_ns;
+ tm.tm_isdst = tmp->tm_isdst;
+
+ pc.meridian = MER24;
+ pc.rel = RELATIVE_TIME_0;
+ pc.timespec_seen = false;
+ pc.rels_seen = false;
+ pc.dates_seen = 0;
+ pc.days_seen = 0;
+ pc.times_seen = 0;
+ pc.local_zones_seen = 0;
+ pc.dsts_seen = 0;
+ pc.zones_seen = 0;
+
+#if HAVE_STRUCT_TM_TM_ZONE
+ pc.local_time_zone_table[0].name = tmp->tm_zone;
+ pc.local_time_zone_table[0].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[0].value = tmp->tm_isdst;
+ pc.local_time_zone_table[1].name = NULL;
+
+ /* Probe the names used in the next three calendar quarters, looking
+ for a tm_isdst different from the one we already have. */
+ {
+ int quarter;
+ for (quarter = 1; quarter <= 3; quarter++)
+ {
+ time_t probe = Start + quarter * (90 * 24 * 60 * 60);
+ struct tm const *probe_tm = localtime (&probe);
+ if (probe_tm && probe_tm->tm_zone
+ && probe_tm->tm_isdst != pc.local_time_zone_table[0].value)
+ {
+ {
+ pc.local_time_zone_table[1].name = probe_tm->tm_zone;
+ pc.local_time_zone_table[1].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[1].value = probe_tm->tm_isdst;
+ pc.local_time_zone_table[2].name = NULL;
+ }
+ break;
+ }
+ }
+ }
+#else
+#if HAVE_TZNAME
+ {
+# if !HAVE_DECL_TZNAME
+ extern char *tzname[];
+# endif
+ int i;
+ for (i = 0; i < 2; i++)
+ {
+ pc.local_time_zone_table[i].name = tzname[i];
+ pc.local_time_zone_table[i].type = tLOCAL_ZONE;
+ pc.local_time_zone_table[i].value = i;
+ }
+ pc.local_time_zone_table[i].name = NULL;
+ }
+#else
+ pc.local_time_zone_table[0].name = NULL;
+#endif
+#endif
+
+ if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
+ && ! strcmp (pc.local_time_zone_table[0].name,
+ pc.local_time_zone_table[1].name))
+ {
+ /* This locale uses the same abbrevation for standard and
+ daylight times. So if we see that abbreviation, we don't
+ know whether it's daylight time. */
+ pc.local_time_zone_table[0].value = -1;
+ pc.local_time_zone_table[1].name = NULL;
+ }
+
+ if (yyparse (&pc) != 0)
+ goto fail;
+
+ if (pc.timespec_seen)
+ *result = pc.seconds;
+ else
+ {
+ if (1 < (pc.times_seen | pc.dates_seen | pc.days_seen | pc.dsts_seen
+ | (pc.local_zones_seen + pc.zones_seen)))
+ goto fail;
+
+ tm.tm_year = to_year (pc.year) - TM_YEAR_BASE;
+ tm.tm_mon = pc.month - 1;
+ tm.tm_mday = pc.day;
+ if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen))
+ {
+ tm.tm_hour = to_hour (pc.hour, pc.meridian);
+ if (tm.tm_hour < 0)
+ goto fail;
+ tm.tm_min = pc.minutes;
+ tm.tm_sec = pc.seconds.tv_sec;
+ }
+ else
+ {
+ tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+ pc.seconds.tv_nsec = 0;
+ }
+
+ /* Let mktime deduce tm_isdst if we have an absolute time stamp. */
+ if (pc.dates_seen | pc.days_seen | pc.times_seen)
+ tm.tm_isdst = -1;
+
+ /* But if the input explicitly specifies local time with or without
+ DST, give mktime that information. */
+ if (pc.local_zones_seen)
+ tm.tm_isdst = pc.local_isdst;
+
+ tm0 = tm;
+
+ Start = mktime (&tm);
+
+ if (! mktime_ok (&tm0, &tm, Start))
+ {
+ if (! pc.zones_seen)
+ goto fail;
+ else
+ {
+ /* Guard against falsely reporting errors near the time_t
+ boundaries when parsing times in other time zones. For
+ example, suppose the input string "1969-12-31 23:00:00 -0100",
+ the current time zone is 8 hours ahead of UTC, and the min
+ time_t value is 1970-01-01 00:00:00 UTC. Then the min
+ localtime value is 1970-01-01 08:00:00, and mktime will
+ therefore fail on 1969-12-31 23:00:00. To work around the
+ problem, set the time zone to 1 hour behind UTC temporarily
+ by setting TZ="XXX1:00" and try mktime again. */
+
+ long int time_zone = pc.time_zone;
+ long int abs_time_zone = time_zone < 0 ? - time_zone : time_zone;
+ long int abs_time_zone_hour = abs_time_zone / 60;
+ int abs_time_zone_min = abs_time_zone % 60;
+ char tz1buf[sizeof "XXX+0:00"
+ + sizeof pc.time_zone * CHAR_BIT / 3];
+ if (!tz_was_altered)
+ tz0 = get_tz (tz0buf);
+ sprintf (tz1buf, "XXX%s%ld:%02d", "-" + (time_zone < 0),
+ abs_time_zone_hour, abs_time_zone_min);
+ if (setenv ("TZ", tz1buf, 1) != 0)
+ goto fail;
+ tz_was_altered = true;
+ tm = tm0;
+ Start = mktime (&tm);
+ if (! mktime_ok (&tm0, &tm, Start))
+ goto fail;
+ }
+ }
+
+ if (pc.days_seen && ! pc.dates_seen)
+ {
+ tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7
+ + 7 * (pc.day_ordinal
+ - (0 < pc.day_ordinal
+ && tm.tm_wday != pc.day_number)));
+ tm.tm_isdst = -1;
+ Start = mktime (&tm);
+ if (Start == (time_t) -1)
+ goto fail;
+ }
+
+ /* Add relative date. */
+ if (pc.rel.year | pc.rel.month | pc.rel.day)
+ {
+ int year = tm.tm_year + pc.rel.year;
+ int month = tm.tm_mon + pc.rel.month;
+ int day = tm.tm_mday + pc.rel.day;
+ if (((year < tm.tm_year) ^ (pc.rel.year < 0))
+ | ((month < tm.tm_mon) ^ (pc.rel.month < 0))
+ | ((day < tm.tm_mday) ^ (pc.rel.day < 0)))
+ goto fail;
+ tm.tm_year = year;
+ tm.tm_mon = month;
+ tm.tm_mday = day;
+ tm.tm_hour = tm0.tm_hour;
+ tm.tm_min = tm0.tm_min;
+ tm.tm_sec = tm0.tm_sec;
+ tm.tm_isdst = tm0.tm_isdst;
+ Start = mktime (&tm);
+ if (Start == (time_t) -1)
+ goto fail;
+ }
+
+ /* The only "output" of this if-block is an updated Start value,
+ so this block must follow others that clobber Start. */
+ if (pc.zones_seen)
+ {
+ long int delta = pc.time_zone * 60;
+ time_t t1;
+#ifdef HAVE_TM_GMTOFF
+ delta -= tm.tm_gmtoff;
+#else
+ time_t t = Start;
+ struct tm const *gmt = gmtime (&t);
+ if (! gmt)
+ goto fail;
+ delta -= tm_diff (&tm, gmt);
+#endif
+ t1 = Start - delta;
+ if ((Start < t1) != (delta < 0))
+ goto fail; /* time_t overflow */
+ Start = t1;
+ }
+
+ /* Add relative hours, minutes, and seconds. On hosts that support
+ leap seconds, ignore the possibility of leap seconds; e.g.,
+ "+ 10 minutes" adds 600 seconds, even if one of them is a
+ leap second. Typically this is not what the user wants, but it's
+ too hard to do it the other way, because the time zone indicator
+ must be applied before relative times, and if mktime is applied
+ again the time zone will be lost. */
+ {
+ long int sum_ns = pc.seconds.tv_nsec + pc.rel.ns;
+ long int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
+ time_t t0 = Start;
+ long int d1 = 60 * 60 * pc.rel.hour;
+ time_t t1 = t0 + d1;
+ long int d2 = 60 * pc.rel.minutes;
+ time_t t2 = t1 + d2;
+ long_time_t d3 = pc.rel.seconds;
+ long_time_t t3 = t2 + d3;
+ long int d4 = (sum_ns - normalized_ns) / BILLION;
+ long_time_t t4 = t3 + d4;
+ time_t t5 = t4;
+
+ if ((d1 / (60 * 60) ^ pc.rel.hour)
+ | (d2 / 60 ^ pc.rel.minutes)
+ | ((t1 < t0) ^ (d1 < 0))
+ | ((t2 < t1) ^ (d2 < 0))
+ | ((t3 < t2) ^ (d3 < 0))
+ | ((t4 < t3) ^ (d4 < 0))
+ | (t5 != t4))
+ goto fail;
+
+ result->tv_sec = t5;
+ result->tv_nsec = normalized_ns;
+ }
+ }
+
+ goto done;
+
+ fail:
+ ok = false;
+ done:
+ if (tz_was_altered)
+ ok &= (tz0 ? setenv ("TZ", tz0, 1) : unsetenv ("TZ")) == 0;
+ if (tz0 != tz0buf)
+ free (tz0);
+ return ok;
+}
+
+#if TEST
+
+int
+main (int ac, char **av)
+{
+ char buff[BUFSIZ];
+
+ printf ("Enter date, or blank line to exit.\n\t> ");
+ fflush (stdout);
+
+ buff[BUFSIZ - 1] = '\0';
+ while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
+ {
+ struct timespec d;
+ struct tm const *tm;
+ if (! get_date (&d, buff, NULL))
+ printf ("Bad format - couldn't convert.\n");
+ else if (! (tm = localtime (&d.tv_sec)))
+ {
+ long int sec = d.tv_sec;
+ printf ("localtime (%ld) failed\n", sec);
+ }
+ else
+ {
+ int ns = d.tv_nsec;
+ printf ("%04ld-%02d-%02d %02d:%02d:%02d.%09d\n",
+ tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec, ns);
+ }
+ printf ("\t> ");
+ fflush (stdout);
+ }
+ return 0;
+}
+#endif /* TEST */
diff --git a/lib/gettime.c b/lib/gettime.c
new file mode 100644
index 0000000..044b26f
--- /dev/null
+++ b/lib/gettime.c
@@ -0,0 +1,48 @@
+/* gettime -- get the system clock
+
+ Copyright (C) 2002, 2004-2007, 2009-2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Paul Eggert. */
+
+#include <config.h>
+
+#include "timespec.h"
+
+#include <sys/time.h>
+
+/* Get the system time into *TS. */
+
+void
+gettime (struct timespec *ts)
+{
+#if HAVE_NANOTIME
+ nanotime (ts);
+#else
+
+# if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME
+ if (clock_gettime (CLOCK_REALTIME, ts) == 0)
+ return;
+# endif
+
+ {
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ ts->tv_sec = tv.tv_sec;
+ ts->tv_nsec = tv.tv_usec * 1000;
+ }
+
+#endif
+}
diff --git a/lib/gettime.h b/lib/gettime.h
new file mode 100644
index 0000000..e69de29
diff --git a/lib/intprops.h b/lib/intprops.h
new file mode 100644
index 0000000..46f4d47
--- /dev/null
+++ b/lib/intprops.h
@@ -0,0 +1,83 @@
+/* intprops.h -- properties of integer types
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009, 2010 Free Software
+ Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Paul Eggert. */
+
+#ifndef GL_INTPROPS_H
+# define GL_INTPROPS_H
+
+# include <limits.h>
+
+/* The extra casts in the following macros work around compiler bugs,
+ e.g., in Cray C 5.0.3.0. */
+
+/* True if the arithmetic type T is an integer type. bool counts as
+ an integer. */
+# define TYPE_IS_INTEGER(t) ((t) 1.5 == 1)
+
+/* True if negative values of the signed integer type T use two's
+ complement, ones' complement, or signed magnitude representation,
+ respectively. Much GNU code assumes two's complement, but some
+ people like to be portable to all possible C hosts. */
+# define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
+# define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
+# define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
+
+/* True if the arithmetic type T is signed. */
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+
+/* The maximum and minimum values for the integer type T. These
+ macros have undefined behavior if T is signed and has padding bits.
+ If this is a problem for you, please let us know how to fix it for
+ your host. */
+# define TYPE_MINIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) 0 \
+ : TYPE_SIGNED_MAGNITUDE (t) \
+ ? ~ (t) 0 \
+ : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+# define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) -1 \
+ : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+
+/* Return zero if T can be determined to be an unsigned type.
+ Otherwise, return 1.
+ When compiling with GCC, INT_STRLEN_BOUND uses this macro to obtain a
+ tighter bound. Otherwise, it overestimates the true bound by one byte
+ when applied to unsigned types of size 2, 4, 16, ... bytes.
+ The symbol signed_type_or_expr__ is private to this header file. */
+# if __GNUC__ >= 2
+# define signed_type_or_expr__(t) TYPE_SIGNED (__typeof__ (t))
+# else
+# define signed_type_or_expr__(t) 1
+# endif
+
+/* Bound on length of the string representing an integer type or expression T.
+ Subtract 1 for the sign bit if T is signed; log10 (2.0) < 146/485;
+ add 1 for integer division truncation; add 1 more for a minus sign
+ if needed. */
+# define INT_STRLEN_BOUND(t) \
+ ((sizeof (t) * CHAR_BIT - signed_type_or_expr__ (t)) * 146 / 485 \
+ + signed_type_or_expr__ (t) + 1)
+
+/* Bound on buffer size needed to represent an integer type or expression T,
+ including the terminating null. */
+# define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
+
+#endif /* GL_INTPROPS_H */
diff --git a/lib/timespec.h b/lib/timespec.h
new file mode 100644
index 0000000..81b3423
--- /dev/null
+++ b/lib/timespec.h
@@ -0,0 +1,39 @@
+/* timespec -- System time interface
+
+ Copyright (C) 2000, 2002, 2004-2005, 2007, 2009-2010 Free Software
+ Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#if ! defined TIMESPEC_H
+# define TIMESPEC_H
+
+# include <time.h>
+
+/* Return negative, zero, positive if A < B, A == B, A > B, respectively.
+ Assume the nanosecond components are in range, or close to it. */
+static inline int
+timespec_cmp (struct timespec a, struct timespec b)
+{
+ return (a.tv_sec < b.tv_sec ? -1
+ : a.tv_sec > b.tv_sec ? 1
+ : a.tv_nsec < b.tv_nsec ? -1
+ : a.tv_nsec > b.tv_nsec ? 1
+ : 0);
+}
+
+void gettime (struct timespec *);
+int settime (struct timespec const *);
+
+#endif
diff --git a/lib/verify.h b/lib/verify.h
new file mode 100644
index 0000000..bcd3f5a
--- /dev/null
+++ b/lib/verify.h
@@ -0,0 +1,140 @@
+/* Compile-time assert-like macros.
+
+ Copyright (C) 2005-2006, 2009-2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Paul Eggert, Bruno Haible, and Jim Meyering. */
+
+#ifndef VERIFY_H
+# define VERIFY_H 1
+
+/* Each of these macros verifies that its argument R is nonzero. To
+ be portable, R should be an integer constant expression. Unlike
+ assert (R), there is no run-time overhead.
+
+ There are two macros, since no single macro can be used in all
+ contexts in C. verify_true (R) is for scalar contexts, including
+ integer constant expression contexts. verify (R) is for declaration
+ contexts, e.g., the top level.
+
+ Symbols ending in "__" are private to this header.
+
+ The code below uses several ideas.
+
+ * The first step is ((R) ? 1 : -1). Given an expression R, of
+ integral or boolean or floating-point type, this yields an
+ expression of integral type, whose value is later verified to be
+ constant and nonnegative.
+
+ * Next this expression W is wrapped in a type
+ struct verify_type__ { unsigned int verify_error_if_negative_size__: W; }.
+ If W is negative, this yields a compile-time error. No compiler can
+ deal with a bit-field of negative size.
+
+ One might think that an array size check would have the same
+ effect, that is, that the type struct { unsigned int dummy[W]; }
+ would work as well. However, inside a function, some compilers
+ (such as C++ compilers and GNU C) allow local parameters and
+ variables inside array size expressions. With these compilers,
+ an array size check would not properly diagnose this misuse of
+ the verify macro:
+
+ void function (int n) { verify (n < 0); }
+
+ * For the verify macro, the struct verify_type__ will need to
+ somehow be embedded into a declaration. To be portable, this
+ declaration must declare an object, a constant, a function, or a
+ typedef name. If the declared entity uses the type directly,
+ such as in
+
+ struct dummy {...};
+ typedef struct {...} dummy;
+ extern struct {...} *dummy;
+ extern void dummy (struct {...} *);
+ extern struct {...} *dummy (void);
+
+ two uses of the verify macro would yield colliding declarations
+ if the entity names are not disambiguated. A workaround is to
+ attach the current line number to the entity name:
+
+ #define GL_CONCAT0(x, y) x##y
+ #define GL_CONCAT(x, y) GL_CONCAT0 (x, y)
+ extern struct {...} * GL_CONCAT(dummy,__LINE__);
+
+ But this has the problem that two invocations of verify from
+ within the same macro would collide, since the __LINE__ value
+ would be the same for both invocations.
+
+ A solution is to use the sizeof operator. It yields a number,
+ getting rid of the identity of the type. Declarations like
+
+ extern int dummy [sizeof (struct {...})];
+ extern void dummy (int [sizeof (struct {...})]);
+ extern int (*dummy (void)) [sizeof (struct {...})];
+
+ can be repeated.
+
+ * Should the implementation use a named struct or an unnamed struct?
+ Which of the following alternatives can be used?
+
+ extern int dummy [sizeof (struct {...})];
+ extern int dummy [sizeof (struct verify_type__ {...})];
+ extern void dummy (int [sizeof (struct {...})]);
+ extern void dummy (int [sizeof (struct verify_type__ {...})]);
+ extern int (*dummy (void)) [sizeof (struct {...})];
+ extern int (*dummy (void)) [sizeof (struct verify_type__ {...})];
+
+ In the second and sixth case, the struct type is exported to the
+ outer scope; two such declarations therefore collide. GCC warns
+ about the first, third, and fourth cases. So the only remaining
+ possibility is the fifth case:
+
+ extern int (*dummy (void)) [sizeof (struct {...})];
+
+ * This implementation exploits the fact that GCC does not warn about
+ the last declaration mentioned above. If a future version of GCC
+ introduces a warning for this, the problem could be worked around
+ by using code specialized to GCC, e.g.,:
+
+ #if 4 <= __GNUC__
+ # define verify(R) \
+ extern int (* verify_function__ (void)) \
+ [__builtin_constant_p (R) && (R) ? 1 : -1]
+ #endif
+
+ * In C++, any struct definition inside sizeof is invalid.
+ Use a template type to work around the problem. */
+
+
+/* Verify requirement R at compile-time, as an integer constant expression.
+ Return 1. */
+
+# ifdef __cplusplus
+template <int w>
+ struct verify_type__ { unsigned int verify_error_if_negative_size__: w; };
+# define verify_true(R) \
+ (!!sizeof (verify_type__<(R) ? 1 : -1>))
+# else
+# define verify_true(R) \
+ (!!sizeof \
+ (struct { unsigned int verify_error_if_negative_size__: (R) ? 1 : -1; }))
+# endif
+
+/* Verify requirement R at compile-time, as a declaration without a
+ trailing ';'. */
+
+# define verify(R) extern int (* verify_function__ (void)) [verify_true (R)]
+
+#endif
--
1.7.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RFC PATCH 2/3] Compile the date/time parser into notmuch library
2011-08-10 10:22 [RFC PATCH 0/3] add user friendly date range search Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 1/3] Import date/time parser from GNU coreutils Jani Nikula
@ 2011-08-10 10:22 ` Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 3/3] lib: add gnulib get_date() based date range search Jani Nikula
2011-08-15 9:22 ` [RFC PATCH 0/3] add user friendly " Michal Sojka
3 siblings, 0 replies; 8+ messages in thread
From: Jani Nikula @ 2011-08-10 10:22 UTC (permalink / raw)
To: notmuch; +Cc: amdragon
From: Michal Sojka <sojkam1@fel.cvut.cz>
---
Makefile.local | 3 +
configure | 8 ++
lib/Makefile.local | 5 +-
lib/config.h | 45 +++++++++++++
lib/getdate.c | 185 +++++++++++++++++++++++++++-------------------------
lib/getdate.h | 9 +++
lib/getdate.y | 15 ++++-
7 files changed, 178 insertions(+), 92 deletions(-)
create mode 100644 lib/config.h
diff --git a/Makefile.local b/Makefile.local
index e3d4d03..3da9ad9 100644
--- a/Makefile.local
+++ b/Makefile.local
@@ -234,6 +234,9 @@ quiet ?= $($(shell echo $1 | sed -e s'/ .*//'))
%.o: %.c $(global_deps)
$(call quiet,CC $(CFLAGS)) -c $(FINAL_CFLAGS) $< -o $@
+%.c: %.y
+ $(call quiet,YACC $(YFLAGS)) $(YFLAGS) $< -o $@
+
.deps/%.d: %.c $(global_deps)
@set -e; rm -f $@; mkdir -p $$(dirname $@) ; \
$(CC) -M $(CPPFLAGS) $(FINAL_CFLAGS) $< > $@.$$$$ 2>/dev/null ; \
diff --git a/configure b/configure
index 3999ce8..f385c79 100755
--- a/configure
+++ b/configure
@@ -25,9 +25,11 @@ fi
# environment variables)
CC=${CC:-gcc}
CXX=${CXX:-g++}
+YACC=${YACC:-yacc}
CFLAGS=${CFLAGS:--O2}
CXXFLAGS=${CXXFLAGS:-\$(CFLAGS)}
LDFLAGS=${LDFLAGS:-}
+YFLAGS=${YFLAGS}
XAPIAN_CONFIG=${XAPIAN_CONFIG:-xapian-config}
# We don't allow the EMACS or GZIP Makefile variables inherit values
@@ -571,6 +573,9 @@ CC = ${CC}
# The C++ compiler to use
CXX = ${CXX}
+# The parser generator to use
+YACC = ${YACC}
+
# Command to execute emacs from Makefiles
EMACS = emacs --quick
@@ -589,6 +594,9 @@ WARN_CXXFLAGS=${WARN_CXXFLAGS}
# Flags to enable warnings when using the C compiler
WARN_CFLAGS=${WARN_CFLAGS}
+# Default FLAGS for parser generator (can be overridden by user such as "make YFLAGS=-y")
+YFLAGS = ${YFLAGS}
+
# The prefix to which notmuch should be installed
# Note: If you change this value here, be sure to ensure that the
# LIBDIR_IN_LDCONFIG value below is still set correctly.
diff --git a/lib/Makefile.local b/lib/Makefile.local
index fbc2f6a..a1c234f 100644
--- a/lib/Makefile.local
+++ b/lib/Makefile.local
@@ -56,7 +56,10 @@ libnotmuch_c_srcs = \
$(dir)/messages.c \
$(dir)/sha1.c \
$(dir)/tags.c \
- $(dir)/xutil.c
+ $(dir)/xutil.c \
+ $(dir)/getdate.c \
+ $(dir)/c-ctype.c \
+ $(dir)/gettime.c
libnotmuch_cxx_srcs = \
$(dir)/database.cc \
diff --git a/lib/config.h b/lib/config.h
new file mode 100644
index 0000000..e8bc5b7
--- /dev/null
+++ b/lib/config.h
@@ -0,0 +1,45 @@
+/* lib/config.h. Generated from config.hin by configure. */
+/* lib/config.hin. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#define HAVE_CLOCK_GETTIME 1
+
+/* Define if you have compound literals. */
+#define HAVE_COMPOUND_LITERALS 1
+
+/* Define to 1 if you have the declaration of `tzname', and to 0 if you don't.
+ */
+/* #undef HAVE_DECL_TZNAME */
+
+/* Define to 1 if you have the `nanotime' function. */
+/* #undef HAVE_NANOTIME */
+
+/* Define to 1 if `tm_zone' is a member of `struct tm'. */
+#define HAVE_STRUCT_TM_TM_ZONE 1
+
+/* Define if struct tm has the tm_gmtoff member. */
+#define HAVE_TM_GMTOFF 1
+
+/* Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
+ `HAVE_STRUCT_TM_TM_ZONE' instead. */
+#define HAVE_TM_ZONE 1
+
+/* Define to 1 if you don't have `tm_zone' but do have the external array
+ `tzname'. */
+/* #undef HAVE_TZNAME */
+
+/* Define to 1 if you have the `tzset' function. */
+#define HAVE_TZSET 1
+
+
+/* Define as a marker that can be attached to declarations that might not
+ be used. This helps to reduce warnings, such as from
+ GCC -Wunused-parameter. */
+#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+# define _GL_UNUSED __attribute__ ((__unused__))
+#else
+# define _GL_UNUSED
+#endif
+/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
+ is a misnomer outside of parameter lists. */
+#define _UNUSED_PARAMETER_ _GL_UNUSED
diff --git a/lib/getdate.c b/lib/getdate.c
index 5b20eeb..57f33e9 100644
--- a/lib/getdate.c
+++ b/lib/getdate.c
@@ -68,7 +68,7 @@
/* Copy the first part of user declarations. */
/* Line 189 of yacc.c */
-#line 1 "getdate.y"
+#line 1 "lib/getdate.y"
/* Parse a string into an internal time stamp.
@@ -102,6 +102,8 @@
/* FIXME: Check for arithmetic overflow in all cases, not just
some of them. */
+#include "notmuch-private.h" /* For xmalloc() */
+
#include <config.h>
#include "getdate.h"
@@ -137,9 +139,6 @@
#include <stdlib.h>
#include <string.h>
-#include "xalloc.h"
-
-
/* ISDIGIT differs from isdigit, as follows:
- Its arg may be any int or unsigned int; it need not be an unsigned char
or EOF.
@@ -344,7 +343,7 @@ set_hhmmss (parser_control *pc, long int hour, long int minutes,
/* Line 189 of yacc.c */
-#line 348 "getdate.c"
+#line 347 "lib/getdate.c"
/* Enabling traces. */
#ifndef YYDEBUG
@@ -423,7 +422,7 @@ typedef union YYSTYPE
{
/* Line 214 of yacc.c */
-#line 285 "getdate.y"
+#line 284 "lib/getdate.y"
long int intval;
textint textintval;
@@ -433,7 +432,7 @@ typedef union YYSTYPE
/* Line 214 of yacc.c */
-#line 437 "getdate.c"
+#line 436 "lib/getdate.c"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
@@ -445,7 +444,7 @@ typedef union YYSTYPE
/* Line 264 of yacc.c */
-#line 449 "getdate.c"
+#line 448 "lib/getdate.c"
#ifdef short
# undef short
@@ -759,15 +758,15 @@ static const yytype_int8 yyrhs[] =
/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
static const yytype_uint16 yyrline[] =
{
- 0, 311, 311, 312, 316, 323, 325, 329, 331, 333,
- 335, 337, 339, 340, 341, 345, 350, 355, 362, 367,
- 377, 382, 390, 392, 395, 397, 399, 404, 409, 414,
- 419, 427, 432, 452, 459, 467, 475, 480, 486, 491,
- 500, 502, 504, 509, 511, 513, 515, 517, 519, 521,
- 523, 525, 527, 529, 531, 533, 535, 537, 539, 541,
- 543, 545, 547, 549, 553, 555, 557, 559, 561, 563,
- 568, 572, 572, 575, 576, 581, 582, 587, 592, 603,
- 604, 610, 611
+ 0, 310, 310, 311, 315, 322, 324, 328, 330, 332,
+ 334, 336, 338, 339, 340, 344, 349, 354, 361, 366,
+ 376, 381, 389, 391, 394, 396, 398, 403, 408, 413,
+ 418, 426, 431, 451, 458, 466, 474, 479, 485, 490,
+ 499, 501, 503, 508, 510, 512, 514, 516, 518, 520,
+ 522, 524, 526, 528, 530, 532, 534, 536, 538, 540,
+ 542, 544, 546, 548, 552, 554, 556, 558, 560, 562,
+ 567, 571, 571, 574, 575, 580, 581, 586, 591, 602,
+ 603, 609, 610
};
#endif
@@ -1742,7 +1741,7 @@ yyreduce:
case 4:
/* Line 1455 of yacc.c */
-#line 317 "getdate.y"
+#line 316 "lib/getdate.y"
{
pc->seconds = (yyvsp[(2) - (2)].timespec);
pc->timespec_seen = true;
@@ -1752,42 +1751,42 @@ yyreduce:
case 7:
/* Line 1455 of yacc.c */
-#line 330 "getdate.y"
+#line 329 "lib/getdate.y"
{ pc->times_seen++; }
break;
case 8:
/* Line 1455 of yacc.c */
-#line 332 "getdate.y"
+#line 331 "lib/getdate.y"
{ pc->local_zones_seen++; }
break;
case 9:
/* Line 1455 of yacc.c */
-#line 334 "getdate.y"
+#line 333 "lib/getdate.y"
{ pc->zones_seen++; }
break;
case 10:
/* Line 1455 of yacc.c */
-#line 336 "getdate.y"
+#line 335 "lib/getdate.y"
{ pc->dates_seen++; }
break;
case 11:
/* Line 1455 of yacc.c */
-#line 338 "getdate.y"
+#line 337 "lib/getdate.y"
{ pc->days_seen++; }
break;
case 15:
/* Line 1455 of yacc.c */
-#line 346 "getdate.y"
+#line 345 "lib/getdate.y"
{
set_hhmmss (pc, (yyvsp[(1) - (2)].textintval).value, 0, 0, 0);
pc->meridian = (yyvsp[(2) - (2)].intval);
@@ -1797,7 +1796,7 @@ yyreduce:
case 16:
/* Line 1455 of yacc.c */
-#line 351 "getdate.y"
+#line 350 "lib/getdate.y"
{
set_hhmmss (pc, (yyvsp[(1) - (4)].textintval).value, (yyvsp[(3) - (4)].textintval).value, 0, 0);
pc->meridian = (yyvsp[(4) - (4)].intval);
@@ -1807,7 +1806,7 @@ yyreduce:
case 17:
/* Line 1455 of yacc.c */
-#line 356 "getdate.y"
+#line 355 "lib/getdate.y"
{
set_hhmmss (pc, (yyvsp[(1) - (5)].textintval).value, (yyvsp[(3) - (5)].textintval).value, 0, 0);
pc->meridian = MER24;
@@ -1819,7 +1818,7 @@ yyreduce:
case 18:
/* Line 1455 of yacc.c */
-#line 363 "getdate.y"
+#line 362 "lib/getdate.y"
{
set_hhmmss (pc, (yyvsp[(1) - (6)].textintval).value, (yyvsp[(3) - (6)].textintval).value, (yyvsp[(5) - (6)].timespec).tv_sec, (yyvsp[(5) - (6)].timespec).tv_nsec);
pc->meridian = (yyvsp[(6) - (6)].intval);
@@ -1829,7 +1828,7 @@ yyreduce:
case 19:
/* Line 1455 of yacc.c */
-#line 368 "getdate.y"
+#line 367 "lib/getdate.y"
{
set_hhmmss (pc, (yyvsp[(1) - (7)].textintval).value, (yyvsp[(3) - (7)].textintval).value, (yyvsp[(5) - (7)].timespec).tv_sec, (yyvsp[(5) - (7)].timespec).tv_nsec);
pc->meridian = MER24;
@@ -1841,7 +1840,7 @@ yyreduce:
case 20:
/* Line 1455 of yacc.c */
-#line 378 "getdate.y"
+#line 377 "lib/getdate.y"
{
pc->local_isdst = (yyvsp[(1) - (1)].intval);
pc->dsts_seen += (0 < (yyvsp[(1) - (1)].intval));
@@ -1851,7 +1850,7 @@ yyreduce:
case 21:
/* Line 1455 of yacc.c */
-#line 383 "getdate.y"
+#line 382 "lib/getdate.y"
{
pc->local_isdst = 1;
pc->dsts_seen += (0 < (yyvsp[(1) - (2)].intval)) + 1;
@@ -1861,14 +1860,14 @@ yyreduce:
case 22:
/* Line 1455 of yacc.c */
-#line 391 "getdate.y"
+#line 390 "lib/getdate.y"
{ pc->time_zone = (yyvsp[(1) - (1)].intval); }
break;
case 23:
/* Line 1455 of yacc.c */
-#line 393 "getdate.y"
+#line 392 "lib/getdate.y"
{ pc->time_zone = (yyvsp[(1) - (2)].intval);
apply_relative_time (pc, (yyvsp[(2) - (2)].rel), 1); }
break;
@@ -1876,28 +1875,28 @@ yyreduce:
case 24:
/* Line 1455 of yacc.c */
-#line 396 "getdate.y"
+#line 395 "lib/getdate.y"
{ pc->time_zone = (yyvsp[(1) - (3)].intval) + time_zone_hhmm (pc, (yyvsp[(2) - (3)].textintval), (yyvsp[(3) - (3)].intval)); }
break;
case 25:
/* Line 1455 of yacc.c */
-#line 398 "getdate.y"
+#line 397 "lib/getdate.y"
{ pc->time_zone = (yyvsp[(1) - (1)].intval) + 60; }
break;
case 26:
/* Line 1455 of yacc.c */
-#line 400 "getdate.y"
+#line 399 "lib/getdate.y"
{ pc->time_zone = (yyvsp[(1) - (2)].intval) + 60; }
break;
case 27:
/* Line 1455 of yacc.c */
-#line 405 "getdate.y"
+#line 404 "lib/getdate.y"
{
pc->day_ordinal = 0;
pc->day_number = (yyvsp[(1) - (1)].intval);
@@ -1907,7 +1906,7 @@ yyreduce:
case 28:
/* Line 1455 of yacc.c */
-#line 410 "getdate.y"
+#line 409 "lib/getdate.y"
{
pc->day_ordinal = 0;
pc->day_number = (yyvsp[(1) - (2)].intval);
@@ -1917,7 +1916,7 @@ yyreduce:
case 29:
/* Line 1455 of yacc.c */
-#line 415 "getdate.y"
+#line 414 "lib/getdate.y"
{
pc->day_ordinal = (yyvsp[(1) - (2)].intval);
pc->day_number = (yyvsp[(2) - (2)].intval);
@@ -1927,7 +1926,7 @@ yyreduce:
case 30:
/* Line 1455 of yacc.c */
-#line 420 "getdate.y"
+#line 419 "lib/getdate.y"
{
pc->day_ordinal = (yyvsp[(1) - (2)].textintval).value;
pc->day_number = (yyvsp[(2) - (2)].intval);
@@ -1937,7 +1936,7 @@ yyreduce:
case 31:
/* Line 1455 of yacc.c */
-#line 428 "getdate.y"
+#line 427 "lib/getdate.y"
{
pc->month = (yyvsp[(1) - (3)].textintval).value;
pc->day = (yyvsp[(3) - (3)].textintval).value;
@@ -1947,7 +1946,7 @@ yyreduce:
case 32:
/* Line 1455 of yacc.c */
-#line 433 "getdate.y"
+#line 432 "lib/getdate.y"
{
/* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
otherwise as MM/DD/YY.
@@ -1972,7 +1971,7 @@ yyreduce:
case 33:
/* Line 1455 of yacc.c */
-#line 453 "getdate.y"
+#line 452 "lib/getdate.y"
{
/* ISO 8601 format. YYYY-MM-DD. */
pc->year = (yyvsp[(1) - (3)].textintval);
@@ -1984,7 +1983,7 @@ yyreduce:
case 34:
/* Line 1455 of yacc.c */
-#line 460 "getdate.y"
+#line 459 "lib/getdate.y"
{
/* e.g. 17-JUN-1992. */
pc->day = (yyvsp[(1) - (3)].textintval).value;
@@ -1997,7 +1996,7 @@ yyreduce:
case 35:
/* Line 1455 of yacc.c */
-#line 468 "getdate.y"
+#line 467 "lib/getdate.y"
{
/* e.g. JUN-17-1992. */
pc->month = (yyvsp[(1) - (3)].intval);
@@ -2010,7 +2009,7 @@ yyreduce:
case 36:
/* Line 1455 of yacc.c */
-#line 476 "getdate.y"
+#line 475 "lib/getdate.y"
{
pc->month = (yyvsp[(1) - (2)].intval);
pc->day = (yyvsp[(2) - (2)].textintval).value;
@@ -2020,7 +2019,7 @@ yyreduce:
case 37:
/* Line 1455 of yacc.c */
-#line 481 "getdate.y"
+#line 480 "lib/getdate.y"
{
pc->month = (yyvsp[(1) - (4)].intval);
pc->day = (yyvsp[(2) - (4)].textintval).value;
@@ -2031,7 +2030,7 @@ yyreduce:
case 38:
/* Line 1455 of yacc.c */
-#line 487 "getdate.y"
+#line 486 "lib/getdate.y"
{
pc->day = (yyvsp[(1) - (2)].textintval).value;
pc->month = (yyvsp[(2) - (2)].intval);
@@ -2041,7 +2040,7 @@ yyreduce:
case 39:
/* Line 1455 of yacc.c */
-#line 492 "getdate.y"
+#line 491 "lib/getdate.y"
{
pc->day = (yyvsp[(1) - (3)].textintval).value;
pc->month = (yyvsp[(2) - (3)].intval);
@@ -2052,238 +2051,238 @@ yyreduce:
case 40:
/* Line 1455 of yacc.c */
-#line 501 "getdate.y"
+#line 500 "lib/getdate.y"
{ apply_relative_time (pc, (yyvsp[(1) - (2)].rel), -1); }
break;
case 41:
/* Line 1455 of yacc.c */
-#line 503 "getdate.y"
+#line 502 "lib/getdate.y"
{ apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
break;
case 42:
/* Line 1455 of yacc.c */
-#line 505 "getdate.y"
+#line 504 "lib/getdate.y"
{ apply_relative_time (pc, (yyvsp[(1) - (1)].rel), 1); }
break;
case 43:
/* Line 1455 of yacc.c */
-#line 510 "getdate.y"
+#line 509 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].intval); }
break;
case 44:
/* Line 1455 of yacc.c */
-#line 512 "getdate.y"
+#line 511 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
break;
case 45:
/* Line 1455 of yacc.c */
-#line 514 "getdate.y"
+#line 513 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
break;
case 46:
/* Line 1455 of yacc.c */
-#line 516 "getdate.y"
+#line 515 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].intval); }
break;
case 47:
/* Line 1455 of yacc.c */
-#line 518 "getdate.y"
+#line 517 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
break;
case 48:
/* Line 1455 of yacc.c */
-#line 520 "getdate.y"
+#line 519 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
break;
case 49:
/* Line 1455 of yacc.c */
-#line 522 "getdate.y"
+#line 521 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].intval) * (yyvsp[(2) - (2)].intval); }
break;
case 50:
/* Line 1455 of yacc.c */
-#line 524 "getdate.y"
+#line 523 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
break;
case 51:
/* Line 1455 of yacc.c */
-#line 526 "getdate.y"
+#line 525 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
break;
case 52:
/* Line 1455 of yacc.c */
-#line 528 "getdate.y"
+#line 527 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].intval); }
break;
case 53:
/* Line 1455 of yacc.c */
-#line 530 "getdate.y"
+#line 529 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
break;
case 54:
/* Line 1455 of yacc.c */
-#line 532 "getdate.y"
+#line 531 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
break;
case 55:
/* Line 1455 of yacc.c */
-#line 534 "getdate.y"
+#line 533 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].intval); }
break;
case 56:
/* Line 1455 of yacc.c */
-#line 536 "getdate.y"
+#line 535 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
break;
case 57:
/* Line 1455 of yacc.c */
-#line 538 "getdate.y"
+#line 537 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
break;
case 58:
/* Line 1455 of yacc.c */
-#line 540 "getdate.y"
+#line 539 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].intval); }
break;
case 59:
/* Line 1455 of yacc.c */
-#line 542 "getdate.y"
+#line 541 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
break;
case 60:
/* Line 1455 of yacc.c */
-#line 544 "getdate.y"
+#line 543 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
break;
case 61:
/* Line 1455 of yacc.c */
-#line 546 "getdate.y"
+#line 545 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; }
break;
case 62:
/* Line 1455 of yacc.c */
-#line 548 "getdate.y"
+#line 547 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
break;
case 64:
/* Line 1455 of yacc.c */
-#line 554 "getdate.y"
+#line 553 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; }
break;
case 65:
/* Line 1455 of yacc.c */
-#line 556 "getdate.y"
+#line 555 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; }
break;
case 66:
/* Line 1455 of yacc.c */
-#line 558 "getdate.y"
+#line 557 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); }
break;
case 67:
/* Line 1455 of yacc.c */
-#line 560 "getdate.y"
+#line 559 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; }
break;
case 68:
/* Line 1455 of yacc.c */
-#line 562 "getdate.y"
+#line 561 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; }
break;
case 69:
/* Line 1455 of yacc.c */
-#line 564 "getdate.y"
+#line 563 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; }
break;
case 70:
/* Line 1455 of yacc.c */
-#line 569 "getdate.y"
+#line 568 "lib/getdate.y"
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); }
break;
case 74:
/* Line 1455 of yacc.c */
-#line 577 "getdate.y"
+#line 576 "lib/getdate.y"
{ (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
break;
case 76:
/* Line 1455 of yacc.c */
-#line 583 "getdate.y"
+#line 582 "lib/getdate.y"
{ (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; }
break;
case 77:
/* Line 1455 of yacc.c */
-#line 588 "getdate.y"
+#line 587 "lib/getdate.y"
{ digits_to_date_time (pc, (yyvsp[(1) - (1)].textintval)); }
break;
case 78:
/* Line 1455 of yacc.c */
-#line 593 "getdate.y"
+#line 592 "lib/getdate.y"
{
/* Hybrid all-digit and relative offset, so that we accept e.g.,
"YYYYMMDD +N days" as well as "YYYYMMDD N days". */
@@ -2295,35 +2294,35 @@ yyreduce:
case 79:
/* Line 1455 of yacc.c */
-#line 603 "getdate.y"
+#line 602 "lib/getdate.y"
{ (yyval.intval) = -1; }
break;
case 80:
/* Line 1455 of yacc.c */
-#line 605 "getdate.y"
+#line 604 "lib/getdate.y"
{ (yyval.intval) = (yyvsp[(2) - (2)].textintval).value; }
break;
case 81:
/* Line 1455 of yacc.c */
-#line 610 "getdate.y"
+#line 609 "lib/getdate.y"
{ (yyval.intval) = MER24; }
break;
case 82:
/* Line 1455 of yacc.c */
-#line 612 "getdate.y"
+#line 611 "lib/getdate.y"
{ (yyval.intval) = (yyvsp[(1) - (1)].intval); }
break;
/* Line 1455 of yacc.c */
-#line 2327 "getdate.c"
+#line 2326 "lib/getdate.c"
default: break;
}
YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -2535,7 +2534,7 @@ yyreturn:
/* Line 1675 of yacc.c */
-#line 615 "getdate.y"
+#line 614 "lib/getdate.y"
static table const meridian_table[] =
@@ -3104,6 +3103,16 @@ mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
Use heap allocation if TZ's length exceeds this. */
enum { TZBUFSIZE = 100 };
+/* Clone an object P of size S, with error checking. There's no need
+ for xnmemdup (P, N, S), since xmemdup (P, N * S) works without any
+ need for an arithmetic overflow check. */
+
+static void *
+xmemdup (void const *p, size_t s)
+{
+ return memcpy (xmalloc (s), p, s);
+}
+
/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
otherwise. */
static char *
diff --git a/lib/getdate.h b/lib/getdate.h
index 22cc2c0..ad1283c 100644
--- a/lib/getdate.h
+++ b/lib/getdate.h
@@ -19,4 +19,13 @@
#include <stdbool.h>
#include <time.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
bool get_date (struct timespec *, char const *, struct timespec const *);
+
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/lib/getdate.y b/lib/getdate.y
index 445865b..d423f5b 100644
--- a/lib/getdate.y
+++ b/lib/getdate.y
@@ -31,6 +31,8 @@
/* FIXME: Check for arithmetic overflow in all cases, not just
some of them. */
+#include "notmuch-private.h" /* For xmalloc() */
+
#include <config.h>
#include "getdate.h"
@@ -66,9 +68,6 @@
#include <stdlib.h>
#include <string.h>
-#include "xalloc.h"
-
-
/* ISDIGIT differs from isdigit, as follows:
- Its arg may be any int or unsigned int; it need not be an unsigned char
or EOF.
@@ -1180,6 +1179,16 @@ mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
Use heap allocation if TZ's length exceeds this. */
enum { TZBUFSIZE = 100 };
+/* Clone an object P of size S, with error checking. There's no need
+ for xnmemdup (P, N, S), since xmemdup (P, N * S) works without any
+ need for an arithmetic overflow check. */
+
+static void *
+xmemdup (void const *p, size_t s)
+{
+ return memcpy (xmalloc (s), p, s);
+}
+
/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
otherwise. */
static char *
--
1.7.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RFC PATCH 3/3] lib: add gnulib get_date() based date range search
2011-08-10 10:22 [RFC PATCH 0/3] add user friendly date range search Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 1/3] Import date/time parser from GNU coreutils Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 2/3] Compile the date/time parser into notmuch library Jani Nikula
@ 2011-08-10 10:22 ` Jani Nikula
2011-08-15 9:30 ` Michal Sojka
2011-08-15 9:22 ` [RFC PATCH 0/3] add user friendly " Michal Sojka
3 siblings, 1 reply; 8+ messages in thread
From: Jani Nikula @ 2011-08-10 10:22 UTC (permalink / raw)
To: notmuch; +Cc: amdragon
Add a custom value range processor to handle "date:" using get_date() from
gnulib. This enables date (and time) searches of the form
date:since..until, where "since" and "until" are expressions understood by
get_date(), compatible with most GNU programs. For the date input formats,
see the GNU coreutils manual:
http://www.gnu.org/software/coreutils/manual/html_node/Date-input-formats.html
Open-ended ranges are supported (since Xapian 1.2.1), i.e. you can specify
date:..until or date:since.. to not limit the start or end date,
respectively.
Note: The get_date() function has been renamed to parse_datetime() in
recent gnulib.
EXAMPLES:
date:2-weeks-ago..
date:today00:00:00..
date:yesterday00:00:00..today00:00:00
date:07/14/2011..2011-07-15
BUGS/CAVEATS:
At the moment it seems search phrases with spaces in them are not supported
in notmuch. For date: this means you can't specify a date with an
expression with spaces in it. In many (but apparently not all) cases you
can work around this by replacing spaces with '-' or simply leaving out
whitespace. For example, date:2-days-ago..yesterday00:00:00.
For the purpose of searching mail, the get_date() implementation has some
surprising interpretations. For example:
* Any date specification without time, such as date:yesterday.. or
date:2011-08-10.., means that day at the same time as now (instead of
00:00:00).
* As a consequence, ranges such as date:yesterday..yesterday match just the
messages at the same time as now, to the second. The date parser should
optimally make different kind of interpretations depending on whether
parsing "since" or "until". For example, date:today..today should cover
the whole day from beginning to end, date:today00:00:00..today23:59:59.
* date:monday.. means date:next-monday.. (rather than date:last-monday..)
* date:this-week.. really means date:now.. (you probably want
date:1-week-ago-next-monday00:00:00.. or similar).
However, there is value in being compatible with GNU programs, and the
input formats have been rather well documented. It would be more surprising
to deviate from that, and it would also take some effort to do so,
including testing.
---
lib/Makefile.local | 1 +
lib/database-private.h | 1 +
lib/database.cc | 4 ++++
lib/getdate-proc.cc | 32 ++++++++++++++++++++++++++++++++
lib/getdate-proc.h | 21 +++++++++++++++++++++
5 files changed, 59 insertions(+), 0 deletions(-)
create mode 100644 lib/getdate-proc.cc
create mode 100644 lib/getdate-proc.h
diff --git a/lib/Makefile.local b/lib/Makefile.local
index a1c234f..b722343 100644
--- a/lib/Makefile.local
+++ b/lib/Makefile.local
@@ -63,6 +63,7 @@ libnotmuch_c_srcs = \
libnotmuch_cxx_srcs = \
$(dir)/database.cc \
+ $(dir)/getdate-proc.cc \
$(dir)/directory.cc \
$(dir)/index.cc \
$(dir)/message.cc \
diff --git a/lib/database-private.h b/lib/database-private.h
index f705009..d83ae3b 100644
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -51,6 +51,7 @@ struct _notmuch_database {
Xapian::QueryParser *query_parser;
Xapian::TermGenerator *term_gen;
Xapian::ValueRangeProcessor *value_range_processor;
+ Xapian::ValueRangeProcessor *getdate_proc;
};
/* Return the list of terms from the given iterator matching a prefix.
diff --git a/lib/database.cc b/lib/database.cc
index 9c2f4ec..b1a0732 100644
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -19,6 +19,7 @@
*/
#include "database-private.h"
+#include "getdate-proc.h"
#include <iostream>
@@ -667,12 +668,14 @@ notmuch_database_open (const char *path,
notmuch->term_gen = new Xapian::TermGenerator;
notmuch->term_gen->set_stemmer (Xapian::Stem ("english"));
notmuch->value_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);
+ notmuch->getdate_proc = new GetDateValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP, "date:", true);
notmuch->query_parser->set_default_op (Xapian::Query::OP_AND);
notmuch->query_parser->set_database (*notmuch->xapian_db);
notmuch->query_parser->set_stemmer (Xapian::Stem ("english"));
notmuch->query_parser->set_stemming_strategy (Xapian::QueryParser::STEM_SOME);
notmuch->query_parser->add_valuerangeprocessor (notmuch->value_range_processor);
+ notmuch->query_parser->add_valuerangeprocessor (notmuch->getdate_proc);
for (i = 0; i < ARRAY_SIZE (BOOLEAN_PREFIX_EXTERNAL); i++) {
prefix_t *prefix = &BOOLEAN_PREFIX_EXTERNAL[i];
@@ -716,6 +719,7 @@ notmuch_database_close (notmuch_database_t *notmuch)
delete notmuch->query_parser;
delete notmuch->xapian_db;
delete notmuch->value_range_processor;
+ delete notmuch->getdate_proc;
talloc_free (notmuch);
}
diff --git a/lib/getdate-proc.cc b/lib/getdate-proc.cc
new file mode 100644
index 0000000..c384e5a
--- /dev/null
+++ b/lib/getdate-proc.cc
@@ -0,0 +1,32 @@
+
+#include "database-private.h"
+#include "getdate-proc.h"
+#include "getdate.h"
+
+/* see *ValueRangeProcessor in xapian-core/api/valuerangeproc.cc */
+Xapian::valueno
+GetDateValueRangeProcessor::operator()(std::string &begin, std::string &end)
+{
+ struct timespec result, now;
+
+ if (Xapian::StringValueRangeProcessor::operator()(begin, end) == Xapian::BAD_VALUENO)
+ return Xapian::BAD_VALUENO;
+
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ if (!begin.empty()) {
+ if (!get_date(&result, begin.c_str(), &now) || result.tv_sec == -1)
+ return Xapian::BAD_VALUENO;
+
+ begin.assign(Xapian::sortable_serialise((double)result.tv_sec));
+ }
+
+ if (!end.empty()) {
+ if (!get_date(&result, end.c_str(), &now) || result.tv_sec == -1)
+ return Xapian::BAD_VALUENO;
+
+ end.assign(Xapian::sortable_serialise((double)result.tv_sec));
+ }
+
+ return valno;
+}
diff --git a/lib/getdate-proc.h b/lib/getdate-proc.h
new file mode 100644
index 0000000..706fc0a
--- /dev/null
+++ b/lib/getdate-proc.h
@@ -0,0 +1,21 @@
+
+#ifndef NOTMUCH_GETDATE_PROC_H
+#define NOTMUCH_GETDATE_PROC_H
+
+#include <xapian.h>
+
+/* see *ValueRangeProcessor in xapian-core/include/xapian/queryparser.h */
+class GetDateValueRangeProcessor : public Xapian::StringValueRangeProcessor {
+public:
+ GetDateValueRangeProcessor(Xapian::valueno slot_)
+ : StringValueRangeProcessor(slot_) { }
+
+ GetDateValueRangeProcessor(Xapian::valueno slot_,
+ const std::string &str_,
+ bool prefix_ = true)
+ : StringValueRangeProcessor(slot_, str_, prefix_) { }
+
+ Xapian::valueno operator()(std::string &begin, std::string &end);
+};
+
+#endif /* NOTMUCH_GETDATE_PROC_H */
--
1.7.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [RFC PATCH 0/3] add user friendly date range search
2011-08-10 10:22 [RFC PATCH 0/3] add user friendly date range search Jani Nikula
` (2 preceding siblings ...)
2011-08-10 10:22 ` [RFC PATCH 3/3] lib: add gnulib get_date() based date range search Jani Nikula
@ 2011-08-15 9:22 ` Michal Sojka
2011-08-23 16:39 ` Jason Woofenden
3 siblings, 1 reply; 8+ messages in thread
From: Michal Sojka @ 2011-08-15 9:22 UTC (permalink / raw)
To: Jani Nikula, notmuch; +Cc: amdragon
Hi Jani,
On Wed, 10 Aug 2011, Jani Nikula wrote:
> Hi, this RFC series adds user friendly date range searches in notmuch.
>
> Patches 1 and 2 add the date/time parser from coreutils, and were posted to
> the list by Michal Sojka in January [1]. I picked them up from the
> date-parser branch of the git tree at [2]. These worked without
> modifications, so I didn't touch them.
>
> Patch 3 adds the actual date range searches on top of current
> master. Michal also posted a date search implementation, but it was based
> on Austin Clements' custom parser patches, which I haven't looked at. Also,
> this one uses date: range syntax rather than before: and after:, and I
> think Michal would agree on this one [3].
Sure.
> If the same parser is to be eventually included in notmuch, I'd prefer
> using the parse-datetime module [3] (get_date() was renamed) directly from
> gnulib [4], instead of coreutils or elsewhere that just imports from
> gnulib. Also, I think the gnulib module should be placed in a subdirectory
> rather than alongside all the notmuch lib files. However there are some
> complications in using parse-datetime, as gnulib modules heavily rely on
> autotools. Perhaps one option would be to build a separate library with
> autotools that has what we need from gnulib?
If he include this parser, then we should definitely take it from
gunlib. I was not aware of gnulib.
But, in the past I thought more about specifying dates in notmuch and
came to conclusion, that parse-datetime is probably not the best thing
to use for notmuch. The reason is that notmuch users are more interested
in date/time ranges than in individual date/times and this module parses
only individual date/times.
I would simply like notmuch to show all mails from Monday when I say
notmuch search date:monday. With parse-datetime approach I would need to
say notmuch search date:monday..tuesday or more precisely
date:"monday 0:00..tuesday 0:00".
I think that this could be implemented by having a parser that works
with ranges as primary objects. If user specifies date:range (e.g.
date:monday), the meaning would be:
since range.start, until range.end
If the user specifies date:range1..range2 (e.g. date:monday..wednesday),
then the meaning would be:
since range1.start, until range2.end
And of course, you could also have zero-length ranges to support
something like date:12:34:56..13:24:35.
I think that this would match most closely the way how I want to search
emails by date. Thoughts?
Unfortunately, I do not have time to implement this now so volunteers
are welcome.
-Michal
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH 3/3] lib: add gnulib get_date() based date range search
2011-08-10 10:22 ` [RFC PATCH 3/3] lib: add gnulib get_date() based date range search Jani Nikula
@ 2011-08-15 9:30 ` Michal Sojka
0 siblings, 0 replies; 8+ messages in thread
From: Michal Sojka @ 2011-08-15 9:30 UTC (permalink / raw)
To: Jani Nikula, notmuch; +Cc: amdragon
On Wed, 10 Aug 2011, Jani Nikula wrote:
> Add a custom value range processor to handle "date:" using get_date() from
> gnulib. This enables date (and time) searches of the form
> date:since..until, where "since" and "until" are expressions understood by
> get_date(), compatible with most GNU programs. For the date input formats,
> see the GNU coreutils manual:
> http://www.gnu.org/software/coreutils/manual/html_node/Date-input-formats.html
>
> Open-ended ranges are supported (since Xapian 1.2.1), i.e. you can specify
> date:..until or date:since.. to not limit the start or end date,
> respectively.
>
> Note: The get_date() function has been renamed to parse_datetime() in
> recent gnulib.
>
> EXAMPLES:
>
> date:2-weeks-ago..
> date:today00:00:00..
> date:yesterday00:00:00..today00:00:00
> date:07/14/2011..2011-07-15
>
> BUGS/CAVEATS:
>
> At the moment it seems search phrases with spaces in them are not supported
> in notmuch. For date: this means you can't specify a date with an
> expression with spaces in it. In many (but apparently not all) cases you
> can work around this by replacing spaces with '-' or simply leaving out
> whitespace. For example, date:2-days-ago..yesterday00:00:00.
For other search operators you can quote the arguments. Doesn't that work
here as well? E.g. date:"2 days ago..".
>
> For the purpose of searching mail, the get_date() implementation has some
> surprising interpretations. For example:
>
> * Any date specification without time, such as date:yesterday.. or
> date:2011-08-10.., means that day at the same time as now (instead of
> 00:00:00).
Yes, this is annoying. I think that the approach outlined in my previous
mail (id:87bovryqp0.fsf@steelpick.2x.cz) would solve this nicely.
> * As a consequence, ranges such as date:yesterday..yesterday match just the
> messages at the same time as now, to the second. The date parser should
> optimally make different kind of interpretations depending on whether
> parsing "since" or "until". For example, date:today..today should cover
> the whole day from beginning to end, date:today00:00:00..today23:59:59.
>
> * date:monday.. means date:next-monday.. (rather than date:last-monday..)
>
> * date:this-week.. really means date:now.. (you probably want
> date:1-week-ago-next-monday00:00:00.. or similar).
I looked into that in the past and found the place where it can be
changed, but as you point out below, we would lose compatibility with
GNU and we would need to test it. I believe that writing a new parser
that is more tailored to email searching is better then reusing date
parser for things it was not intended for.
-Michal
>
> However, there is value in being compatible with GNU programs, and the
> input formats have been rather well documented. It would be more surprising
> to deviate from that, and it would also take some effort to do so,
> including testing.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH 0/3] add user friendly date range search
2011-08-15 9:22 ` [RFC PATCH 0/3] add user friendly " Michal Sojka
@ 2011-08-23 16:39 ` Jason Woofenden
2011-08-23 16:53 ` Tomi Ollila
0 siblings, 1 reply; 8+ messages in thread
From: Jason Woofenden @ 2011-08-23 16:39 UTC (permalink / raw)
To: notmuch
Here's my thoughts on date/range syntax:
I think: date:monday should show only e-mails that arrived on
monday (not also emails that arrived since then.) Because that's
what it looks like it does.
I think a very common use of date ranges will be from some time
until now. So I'd like that to be easy. I suggest this syntax:
since:monday
which would be a shorthand for:
date:monday-00:00:00..now
If that's not a popular idea, then we should at least be able to
use this shorthand for the same:
date:monday..
Also, I think it's quite valuable to have "yesterday" work as a
date.
That's all.
- Jason
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH 0/3] add user friendly date range search
2011-08-23 16:39 ` Jason Woofenden
@ 2011-08-23 16:53 ` Tomi Ollila
0 siblings, 0 replies; 8+ messages in thread
From: Tomi Ollila @ 2011-08-23 16:53 UTC (permalink / raw)
To: notmuch
On Tue 23 Aug 2011 19:39, Jason Woofenden <jason@jasonwoof.com> writes:
> Here's my thoughts on date/range syntax:
>
> I think: date:monday should show only e-mails that arrived on
> monday (not also emails that arrived since then.) Because that's
> what it looks like it does.
>
> I think a very common use of date ranges will be from some time
> until now. So I'd like that to be easy. I suggest this syntax:
>
> since:monday
>
> which would be a shorthand for:
>
> date:monday-00:00:00..now
>
> If that's not a popular idea, then we should at least be able to
> use this shorthand for the same:
>
> date:monday..
This is better, so that us who speaks other languages than English
natively doesn't need to learn (think in) so many english words >;)
So, date:mon[day], date:..mon and date:monday.. would be
something I liked best.
> Also, I think it's quite valuable to have "yesterday" work as a
> date.
I agree.
>
> That's all.
>
> - Jason
Tomi
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-08-23 16:53 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-08-10 10:22 [RFC PATCH 0/3] add user friendly date range search Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 1/3] Import date/time parser from GNU coreutils Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 2/3] Compile the date/time parser into notmuch library Jani Nikula
2011-08-10 10:22 ` [RFC PATCH 3/3] lib: add gnulib get_date() based date range search Jani Nikula
2011-08-15 9:30 ` Michal Sojka
2011-08-15 9:22 ` [RFC PATCH 0/3] add user friendly " Michal Sojka
2011-08-23 16:39 ` Jason Woofenden
2011-08-23 16:53 ` Tomi Ollila
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