From: Basil Contovounesios via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: 64049@debbugs.gnu.org
Subject: bug#64049: 30.0.50; Minor search_buffer cleanup
Date: Wed, 14 Jun 2023 14:26:22 +0100 [thread overview]
Message-ID: <87a5x29nup.fsf@epfl.ch> (raw)
In-Reply-To: <87cz1yhov5.fsf@yahoo.com> (Po Lu's message of "Wed, 14 Jun 2023 08:25:02 +0800")
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Po Lu [2023-06-14 08:25 +0800] wrote:
> We typically write ``All callers changed'' in ChangeLog, I think.
[...]
> How about:
Thanks, done:
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From 2cf5bbafef58aa7d8c5ea6d1b43a349d9dabe273 Mon Sep 17 00:00:00 2001
From: "Basil L. Contovounesios" <contovob@tcd.ie>
Date: Sat, 3 Jun 2023 14:46:19 +0100
Subject: [PATCH] Minor search_buffer cleanup
* src/search.c: Move commentary that used to precede search_buffer
to that location once more. Update it for the current arglist.
(search_command, search_buffer_non_re, search_buffer):
* src/lisp.h (search_buffer): Turn RE flag/argument from an int into
a bool. All callers changed (bug#64049).
---
src/lisp.h | 2 +-
src/search.c | 51 +++++++++++++++++++++++++++------------------------
src/treesit.c | 2 +-
3 files changed, 29 insertions(+), 26 deletions(-)
diff --git a/src/lisp.h b/src/lisp.h
index 2978de962d9..44af2ef8a2a 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -4809,7 +4809,7 @@ fast_c_string_match_ignore_case (Lisp_Object regexp,
ptrdiff_t, ptrdiff_t *);
extern EMACS_INT search_buffer (Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t, EMACS_INT,
- int, Lisp_Object, Lisp_Object, bool);
+ bool, Lisp_Object, Lisp_Object, bool);
extern void syms_of_search (void);
extern void clear_regexp_cache (void);
diff --git a/src/search.c b/src/search.c
index 0bb52c03eef..122d6166637 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1027,7 +1027,7 @@ find_before_next_newline (ptrdiff_t from, ptrdiff_t to,
static Lisp_Object
search_command (Lisp_Object string, Lisp_Object bound, Lisp_Object noerror,
- Lisp_Object count, int direction, int RE, bool posix)
+ Lisp_Object count, int direction, bool RE, bool posix)
{
EMACS_INT np;
EMACS_INT lim;
@@ -1130,21 +1130,6 @@ trivial_regexp_p (Lisp_Object regexp)
return 1;
}
-/* Search for the n'th occurrence of STRING in the current buffer,
- starting at position POS and stopping at position LIM,
- treating STRING as a literal string if RE is false or as
- a regular expression if RE is true.
-
- If N is positive, searching is forward and LIM must be greater than POS.
- If N is negative, searching is backward and LIM must be less than POS.
-
- Returns -x if x occurrences remain to be found (x > 0),
- or else the position at the beginning of the Nth occurrence
- (if searching backward) or the end (if searching forward).
-
- POSIX is nonzero if we want full backtracking (POSIX style)
- for this pattern. 0 means backtrack only enough to get a valid match. */
-
#define TRANSLATE(out, trt, d) \
do \
{ \
@@ -1308,7 +1293,7 @@ search_buffer_re (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
static EMACS_INT
search_buffer_non_re (Lisp_Object string, ptrdiff_t pos,
ptrdiff_t pos_byte, ptrdiff_t lim, ptrdiff_t lim_byte,
- EMACS_INT n, int RE, Lisp_Object trt, Lisp_Object inverse_trt,
+ EMACS_INT n, bool RE, Lisp_Object trt, Lisp_Object inverse_trt,
bool posix)
{
unsigned char *raw_pattern, *pat;
@@ -1507,10 +1492,28 @@ search_buffer_non_re (Lisp_Object string, ptrdiff_t pos,
return result;
}
+/* Search for the Nth occurrence of STRING in the current buffer,
+ from buffer position POS/POS_BYTE until LIM/LIM_BYTE.
+
+ If RE, look for matches against the regular expression STRING instead;
+ if POSIX, enable POSIX style backtracking within that regular
+ expression.
+
+ If N is positive, search forward; in this case, LIM must be greater
+ than POS.
+
+ If N is negative, search backward; LIM must be less than POS.
+
+ Return -X if there are X remaining occurrences or matches,
+ or else the position at the beginning (if N is negative) or the end
+ (if N is positive) of the Nth occurrence or match against STRING.
+
+ Use TRT and INVERSE_TRT as character translation tables. */
+
EMACS_INT
search_buffer (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
ptrdiff_t lim, ptrdiff_t lim_byte, EMACS_INT n,
- int RE, Lisp_Object trt, Lisp_Object inverse_trt, bool posix)
+ bool RE, Lisp_Object trt, Lisp_Object inverse_trt, bool posix)
{
if (running_asynch_code)
save_search_regs ();
@@ -2219,7 +2222,7 @@ DEFUN ("search-backward", Fsearch_backward, Ssearch_backward, 1, 4,
See also the functions `match-beginning', `match-end' and `replace-match'. */)
(Lisp_Object string, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (string, bound, noerror, count, -1, 0, 0);
+ return search_command (string, bound, noerror, count, -1, false, false);
}
DEFUN ("search-forward", Fsearch_forward, Ssearch_forward, 1, 4, "MSearch: ",
@@ -2244,7 +2247,7 @@ DEFUN ("search-forward", Fsearch_forward, Ssearch_forward, 1, 4, "MSearch: ",
See also the functions `match-beginning', `match-end' and `replace-match'. */)
(Lisp_Object string, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (string, bound, noerror, count, 1, 0, 0);
+ return search_command (string, bound, noerror, count, 1, false, false);
}
DEFUN ("re-search-backward", Fre_search_backward, Sre_search_backward, 1, 4,
@@ -2260,7 +2263,7 @@ DEFUN ("re-search-backward", Fre_search_backward, Sre_search_backward, 1, 4,
anchor `(elisp) re-search-backward' for details. */)
(Lisp_Object regexp, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (regexp, bound, noerror, count, -1, 1, 0);
+ return search_command (regexp, bound, noerror, count, -1, true, false);
}
DEFUN ("re-search-forward", Fre_search_forward, Sre_search_forward, 1, 4,
@@ -2291,7 +2294,7 @@ DEFUN ("re-search-forward", Fre_search_forward, Sre_search_forward, 1, 4,
and `replace-match'. */)
(Lisp_Object regexp, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (regexp, bound, noerror, count, 1, 1, 0);
+ return search_command (regexp, bound, noerror, count, 1, true, false);
}
DEFUN ("posix-search-backward", Fposix_search_backward, Sposix_search_backward, 1, 4,
@@ -2319,7 +2322,7 @@ DEFUN ("posix-search-backward", Fposix_search_backward, Sposix_search_backward,
and `replace-match'. */)
(Lisp_Object regexp, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (regexp, bound, noerror, count, -1, 1, 1);
+ return search_command (regexp, bound, noerror, count, -1, true, true);
}
DEFUN ("posix-search-forward", Fposix_search_forward, Sposix_search_forward, 1, 4,
@@ -2347,7 +2350,7 @@ DEFUN ("posix-search-forward", Fposix_search_forward, Sposix_search_forward, 1,
and `replace-match'. */)
(Lisp_Object regexp, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
- return search_command (regexp, bound, noerror, count, 1, 1, 1);
+ return search_command (regexp, bound, noerror, count, 1, true, true);
}
\f
DEFUN ("replace-match", Freplace_match, Sreplace_match, 1, 5, 0,
diff --git a/src/treesit.c b/src/treesit.c
index 0af0e347694..e69cb872a9a 100644
--- a/src/treesit.c
+++ b/src/treesit.c
@@ -2582,7 +2582,7 @@ treesit_predicate_match (Lisp_Object args, struct capture_range captures,
ZV_BYTE = end_byte;
ptrdiff_t val = search_buffer (regexp, start_pos, start_byte,
- end_pos, end_byte, 1, 1, Qnil, Qnil, false);
+ end_pos, end_byte, 1, true, Qnil, Qnil, false);
BEGV = old_begv;
BEGV_BYTE = old_begv_byte;
--
2.34.1
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--
Basil
next prev parent reply other threads:[~2023-06-14 13:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 17:30 bug#64049: 30.0.50; Minor search_buffer cleanup Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-14 0:25 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-14 13:26 ` Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-07-08 15:46 ` Basil Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
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