Re: nyacc version 0.71.0 released

[Matt Wette <matt.wette@gmail.com>]

Like I said: “beta code."  It’s gonna have bugs.  I will check against my latest.  The last iteration included work on the CPP.

> On Jun 21, 2016, at 5:21 AM, Chaos Eternal <chaoseternal@shlug.org> wrote:
> 
> Hi,
> 
> I met with this message when I want to parse UnixODBC's header file:
> but guile version is 2.0.11
> 
> $ ./cxp -Ilang/c99/ -I/usr/include /usr/include/sql.h
> Backtrace:
> In ice-9/boot-9.scm:
> 4052: 19 [#<procedure 23f4a00 at ice-9/boot-9.scm:4045:3 ()>]
> In unknown file:
>   ?: 18 [load-compiled/vm
> "/home/chaos/.cache/guile/ccache/2.0-LE-8-2.0/home/chaos/src/nyacc/examples/nyacc/cxp.go"]
> In ice-9/boot-9.scm:
> 768: 17 [for-each #<procedure 2a056c0 at
> /home/chaos/src/nyacc/examples/nyacc/./cxp:52:3 (file)> ...]
> In /home/chaos/src/nyacc/examples/nyacc/./cxp:
>  53: 16 [#<procedure 2a056c0 at
> /home/chaos/src/nyacc/examples/nyacc/./cxp:52:3 (file)>
> "/usr/include/sql.h"]
> In ice-9/boot-9.scm:
> 867: 15 [call-with-input-file "/usr/include/sql.h" ...]
> In ice-9/r4rs.scm:
> 172: 14 [with-input-from-port #<variable 2a0cc00 value: #<input: file
> /dev/pts/3>> ...]
> In ice-9/boot-9.scm:
> 157: 13 [catch parse-error ...]
> In unknown file:
>   ?: 12 [with-fluid* #<fluid 22> # ...]
> In ../../../../module/nyacc/parse.scm:
> 120: 11 [#<procedure 219c540 at ../../../../module/nyacc/parse.scm:97:4
> (lexr #:key debug)> #<procedure 221d080 at
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:246:8
> ()> ...]
> In
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:
> 371: 10 [#<procedure 221d080 at
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:246:8
> ()>]
> 349: 9 [read-token]
> 277: 8 [exec-cpp "include \"sqltypes.h\""]
> In ice-9/boot-9.scm:
> 867: 7 [call-with-input-file "/usr/include/sqltypes.h" ...]
> In ice-9/r4rs.scm:
> 172: 6 [with-input-from-port #<variable 2a19410 value: #<input:
> /usr/include/sql.h 5>> ...]
> In ../../../../module/nyacc/parse.scm:
> 120: 5 [#<procedure 219c540 at ../../../../module/nyacc/parse.scm:97:4
> (lexr #:key debug)> #<procedure 221d000 at
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:246:8
> ()> ...]
> In
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:
> 371: 4 [#<procedure 221d000 at
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/body.scm:246:8
> ()>]
> 349: 3 [read-token]
> 294: 2 [exec-cpp "if (ODBCVER >= 0x0300)"]
> In ice-9/boot-9.scm:
> 157: 1 [catch error ...]
> In
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/cppbody.scm:
>  69: 0 [eval-expr (ge (ident "ODBCVER") (fixed "0x0300"))]
> 
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/cppbody.scm:69:22:
> In procedure eval-expr:
> /home/chaos/src/nyacc/examples/nyacc/../../module/nyacc/lang/c99/cppbody.scm:69:22:
> In procedure >=: Wrong type argument in position 1: #f
> chaos@florrum:~/src/nyacc/examples/nyacc
> 
> 
> 
> On Fri, Apr 15, 2016 at 9:35 PM Matt Wette <matt.wette@gmail.com> wrote:
> 
>> nyacc version 0.71.0 is released as beta
>> 
>> nyacc is a LALR parser generator written from the ground up in guile
>> 
>> Features/Updates:
>> * clean scheme-flavored syntax for grammar specification
>> * prototype parsers for C99,(partial) javascript, matlab that output parse
>> trees in a SXML format
>> * update: C99 preprocessor updated to expand defines in C code
>> * update: cleaned up file structure
>> * update: started working on test-suite
>> * update: added grammar for C++
>> * update: build parsers via bison
>>  + to use in example below replace `make-lalr-machine' with
>> `make-lalr-machine/bison’,
>>     after adding (use-module (nyacc bison)
>>  + the bison module will
>>     - export a bison gram.y file,
>>     - run "bison -x gram.y” to produce a gram.xml file
>>     - translate gram.xml file into the nyacc “machine” data structure
>> 
>> To run a simple demo:
>> $ tar xzf nyacc-0.71.tar.gz
>> $ cd examples/nyacc/lang/calc
>> $ ./calc
>> 2 + 2 => 4
>> 
>> Tcalc.scm:
>> 
>> (use-modules (nyacc lalr))
>> (use-modules (nyacc lex))
>> (use-modules (nyacc parse))
>> 
>> (define simple-spec
>>  (lalr-spec
>>   (prec< (left "+" "-") (left "*" "/"))
>>   (start expr)
>>   (grammar
>>    (expr
>>     (expr "+" expr ($$ (+ $1 $3)))
>>     (expr "-" expr ($$ (- $1 $3)))
>>     (expr "*" expr ($$ (* $1 $3)))
>>     (expr "/" expr ($$ (/ $1 $3)))
>>     ($fixed ($$ (string->number $1)))
>>     ($float ($$ (string->number $1)))
>>     ("(" expr ")" ($$ $2))))))
>> 
>> (define simple-mach (make-lalr-machine simple-spec))
>> 
>> (define match-table (assq-ref simple-mach 'mtab))
>> 
>> (define gen-lexer (make-lexer-generator match-table))
>> 
>> (define parse (make-lalr-parser simple-mach))
>> 
>> (define demo-string "2 + 2")
>> 
>> (simple-format #t "~A => ~A\n"
>>      demo-string
>>      (with-input-from-string demo-string
>> (lambda () (parse (gen-lexer)))))
>> 
>> download tarball from:
>> http://download.savannah.gnu.org/releases/nyacc/
>> or git clone from
>> git://git.savannah.nongnu.org/nyacc.git
>> 
>> 
>>