1/* 2 * This file is part of flex. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 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. 13 * 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. 17 * 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 21 * PURPOSE. 22 */ 23 24%{ 25/* The scanner expects to link to bison yylval . */ 26#include <stdio.h> 27#include <stdlib.h> 28#include "bison_yylval_parser.h" 29#include "config.h" 30static char* STRDUP(char* s1); 31 32enum yesno_t { no=0, yes=1 }; 33#define YY_EXTRA_TYPE enum yesno_t 34%} 35 36%option 8bit prefix="test" 37%option reentrant bison-bridge 38%option header="bison_yylval_scanner.h" 39%option noyywrap nomain nounput noyy_top_state noyywrap nodefault noinput warn 40%option stack 41 42 43%x IN_TAG 44%x DISCARD_THRU_GT 45%% 46 47 #define YY_USER_INIT yyextra = no; 48 #define NEED_TAG_NAME yyextra 49 50 51<INITIAL>{ 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} { testget_lval(yyscanner)->str = STRDUP(yytext); return TEXT;} 56} 57<IN_TAG>{ 58">" { yy_pop_state( yyscanner ); return GT; } 59[[:alpha:]][[:alnum:]]* { 60 if( NEED_TAG_NAME == yes){ 61 NEED_TAG_NAME=no; 62 yylval->str = STRDUP(yytext); 63 return TAGNAME; 64 } 65 } 66 67.|\r|\n { } 68} 69<DISCARD_THRU_GT>{ 70[^>]{1,512} { } 71">" { yy_pop_state(yyscanner);} 72} 73%% 74 75 76static char* STRDUP(char* s1) 77{ 78 char* s2 = malloc(strlen(s1)+1); 79 sprintf(s2,"%s",s1); 80 return s2; 81} 82