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Diffstat (limited to 'crypto/heimdal/lib/sl/parse.y')
| -rw-r--r-- | crypto/heimdal/lib/sl/parse.y | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/sl/parse.y b/crypto/heimdal/lib/sl/parse.y new file mode 100644 index 0000000..18ef5ca --- /dev/null +++ b/crypto/heimdal/lib/sl/parse.y @@ -0,0 +1,168 @@ +%{ +/* + * Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * 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. + * + * 3. Neither the name of the Institute 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 BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "make_cmds.h" +RCSID("$Id: parse.y,v 1.6 1999/12/16 10:34:11 assar Exp $"); + +void yyerror (char *s); +void error_message(char *, ...); + +struct string_list* append_string(struct string_list*, char*); +void free_string_list(struct string_list *list); +unsigned string_to_flag(const char *); + +/* This is for bison */ + +#if !defined(alloca) && !defined(HAVE_ALLOCA) +#define alloca(x) malloc(x) +#endif + +%} + +%union { + char *string; + unsigned number; + struct string_list *list; +} + +%token TABLE REQUEST UNKNOWN UNIMPLEMENTED END +%token <string> STRING +%type <number> flag flags +%type <list> aliases + +%% + +file : /* */ + | statements + ; + +statements : statement + | statements statement + ; + +statement : TABLE STRING ';' + { + table_name = $2; + } + | REQUEST STRING ',' STRING ',' aliases ',' '(' flags ')' ';' + { + add_command($2, $4, $6, $9); + } + | REQUEST STRING ',' STRING ',' aliases ';' + { + add_command($2, $4, $6, 0); + } + | UNIMPLEMENTED STRING ',' STRING ',' aliases ';' + { + free($2); + free($4); + free_string_list($6); + } + | UNKNOWN aliases ';' + { + free_string_list($2); + } + | END ';' + { + YYACCEPT; + } + ; + +aliases : STRING + { + $$ = append_string(NULL, $1); + } + | aliases ',' STRING + { + $$ = append_string($1, $3); + } + ; + +flags : flag + { + $$ = $1; + } + | flags ',' flag + { + $$ = $1 | $3; + } + ; +flag : STRING + { + $$ = string_to_flag($1); + free($1); + } + ; + + + +%% + +void +yyerror (char *s) +{ + error_message ("%s\n", s); +} + +struct string_list* +append_string(struct string_list *list, char *str) +{ + struct string_list *sl = malloc(sizeof(*sl)); + sl->string = str; + sl->next = NULL; + if(list) { + *list->tail = sl; + list->tail = &sl->next; + return list; + } + sl->tail = &sl->next; + return sl; +} + +void +free_string_list(struct string_list *list) +{ + while(list) { + struct string_list *sl = list->next; + free(list->string); + free(list); + list = sl; + } +} + +unsigned +string_to_flag(const char *string) +{ + return 0; +} |
