/* * 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. */ %{ /* The scanner expects to link to bison yylval . */ #include <stdio.h> #include <stdlib.h> #include "bison_yylval_parser.h" #include "config.h" static char* STRDUP(char* s1); enum yesno_t { no=0, yes=1 }; #define YY_EXTRA_TYPE enum yesno_t %} %option 8bit prefix="test" %option reentrant bison-bridge %option header="bison_yylval_scanner.h" %option noyywrap nomain nounput noyy_top_state noyywrap nodefault noinput warn %option stack %x IN_TAG %x DISCARD_THRU_GT %% #define YY_USER_INIT yyextra = no; #define NEED_TAG_NAME yyextra <INITIAL>{ "</" { NEED_TAG_NAME= yes; yy_push_state( IN_TAG, yyscanner); return LTSLASH;} "<"[^[:alpha:]] { yy_push_state(DISCARD_THRU_GT,yyscanner); } "<" { NEED_TAG_NAME= yes; yy_push_state( IN_TAG, yyscanner); return LT; } [^<]{1,512} { testget_lval(yyscanner)->str = STRDUP(yytext); return TEXT;} } <IN_TAG>{ ">" { yy_pop_state( yyscanner ); return GT; } [[:alpha:]][[:alnum:]]* { if( NEED_TAG_NAME == yes){ NEED_TAG_NAME=no; yylval->str = STRDUP(yytext); return TAGNAME; } } .|\r|\n { } } <DISCARD_THRU_GT>{ [^>]{1,512} { } ">" { yy_pop_state(yyscanner);} } %% static char* STRDUP(char* s1) { char* s2 = malloc(strlen(s1)+1); sprintf(s2,"%s",s1); return s2; }