diff options
author | Manoj Srivastava <srivasta@debian.org> | 2016-01-22 13:51:30 -0800 |
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committer | Manoj Srivastava <srivasta@debian.org> | 2016-01-22 13:51:30 -0800 |
commit | f753f2b7b6d97014110dbe418861353a2f3f445d (patch) | |
tree | 7f248ce2f59fbb79cab24b4727955e37e9a5ab81 /tests/bison_yylval_parser.y | |
parent | 306163051847aaaabe7ae0f4cfc7d23f15923f3a (diff) | |
parent | a646b6cd438dc4bd957c6c6afd89b5e8e59468fe (diff) |
Merge branch 'upstream'
Signed-off-by: Manoj Srivastava <srivasta@debian.org>
# Conflicts:
# INSTALL
# Makefile.in
# aclocal.m4
# build-aux/compile
# build-aux/config.guess
# build-aux/config.sub
# build-aux/depcomp
# build-aux/install-sh
# build-aux/mdate-sh
# build-aux/texinfo.tex
# configure
# doc/Makefile.in
# doc/flex.1
# doc/flex.info
# doc/flex.info-1
# doc/flex.info-2
# doc/flex.pdf
# doc/stamp-vti
# doc/version.texi
# examples/Makefile.in
# examples/fastwc/Makefile.in
# examples/manual/Makefile.in
# src/config.h.in
# tests/Makefile.in
# tests/test-bison-nr/Makefile.am
# tests/test-bison-yylloc/Makefile.am
# tests/test-bison-yylval/Makefile.am
# tools/Makefile.in
Diffstat (limited to 'tests/bison_yylval_parser.y')
-rw-r--r-- | tests/bison_yylval_parser.y | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/tests/bison_yylval_parser.y b/tests/bison_yylval_parser.y new file mode 100644 index 0000000..4159d7b --- /dev/null +++ b/tests/bison_yylval_parser.y @@ -0,0 +1,84 @@ +/* + * This file is part of flex. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. + */ + +/* Accepts html-like input. + How to compile: + bison --defines --output-file="parser.c" --name-prefix="test" parser.y + */ +%parse-param { void* scanner } +%lex-param { void* scanner } +%{ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "config.h" +#include "bison_yylval_parser.h" +#include "bison_yylval_scanner.h" + +#define YYERROR_VERBOSE 1 + +int yyerror(void* scanner, const char* msg); + +/* A dummy function. A check against seg-faults in yylval->str. */ +int process_text(char* s) { + int total =0; + while(*s) { + total += (int) *s; + ++s; + } + return total; +} + + +%} + +%pure-parser + +%union { + long unused; + char * str; +} + +%token <str> TAGNAME TEXT +%token LT +%token GT +%token LTSLASH "</" + +%% + +html: + TEXT { process_text($1); free($1);} + | starttag html endtag + | html TEXT { process_text($2); free($2);} + | html starttag html endtag + ; + +starttag: LT TAGNAME GT { process_text($2); free($2);} ; +endtag: LTSLASH TAGNAME GT { process_text($2);free($2);} ; +%% + +int yyerror(void* scanner, const char* msg) { + (void)scanner; + fprintf(stderr,"%s\n",msg); + return 0; +} |