2 * This file is part of flex.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 /* The scanner expects to link to bison yylval . */
30 static char* STRDUP(char* s1);
32 enum yesno_t { no=0, yes=1 };
33 #define YY_EXTRA_TYPE enum yesno_t
36 %option 8bit outfile="scanner.c" prefix="test"
37 %option reentrant bison-bridge
38 %option noyywrap nomain nounput noyy_top_state noyywrap nodefault warn
39 %option prefix="test" header="scanner.h"
47 #define YY_USER_INIT yyextra = no;
48 #define NEED_TAG_NAME yyextra
52 "</" { NEED_TAG_NAME= yes; yy_push_state( IN_TAG, yyscanner); return LTSLASH;}
53 "<"[^[:alpha:]] { yy_push_state(DISCARD_THRU_GT,yyscanner); }
54 "<" { NEED_TAG_NAME= yes; yy_push_state( IN_TAG, yyscanner); return LT; }
55 [^<]{1,512} { yyget_lval(yyscanner)->str = STRDUP(yytext); return TEXT;}
58 ">" { yy_pop_state( yyscanner ); return GT; }
59 [[:alpha:]][[:alnum:]]* {
60 if( NEED_TAG_NAME == yes){
62 yylval->str = STRDUP(yytext);
71 ">" { yy_pop_state(yyscanner);}
76 static char* STRDUP(char* s1)
78 char* s2 = (char*)malloc(strlen(s1)+1);