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/*======================================================================
* Flex Options
*/
%option outfile="compretest.lex.c"
%option header-file="compretest.lex.h"
%option prefix="compretest_yy"
%option reentrant
%option 8bit
%option yylineno
%option bison-bridge
%{
/*======================================================================
* User C Header
*/
#include <gfsmMem.h>
#include <gfsmRegexCompiler.h>
#include "compretest.tab.h"
#define my_compiler ((gfsmRegexCompiler*)yyextra)
#define my_gstr (my_compiler->gstr)
#define my_abet (my_compiler->abet)
%}
/*======================================================================
* Flex Definitions
*/
DIGIT [0-9]
SPACE [[:space:]]
WCHAR [^\<\[\\ \t\n\r\#]
BCHAR [^\\\]\ \t\n\r\=]
UTF8PREFIX "Ã"
%x STATE_ESCAPE
%x STATE_BRACKETED
%x STATE_BRACKETED_SEP
%x STATE_BRACKETED_ESCAPE
%x STATE_COMMENT
%x STATE_WEIGHT
%x STATE_UINT
/*======================================================================
* Rules
*/
%%
{UTF8PREFIX}+. {
yylval->gs = gfsm_gstring_new_bytes(yytext,yyleng);
return TOK_STRING;
}
"\\" { BEGIN(STATE_ESCAPE); }
"#" { BEGIN(STATE_COMMENT); }
"[" {
BEGIN(STATE_BRACKETED);
return '[';
}
"<" { BEGIN(STATE_WEIGHT); return '<'; }
"(" { return '('; }
")" { return ')'; }
"*" { return '*'; }
"+" { return '+'; }
"^" { BEGIN(STATE_UINT); return '|'; }
"?" { return '?'; }
"!" { return '!'; }
"|" { return '|'; }
"&" { return '&'; }
":" { return ':'; }
"@" { return '@'; }
"-" { return '-'; /*"/1"{return PROJ1;}*/ /*"/2"{return PROJ2;}*/ }
"$" { return '$'; /* non-AT&T: determinize */ }
"%" { return '%'; /* non-AT&T: rmepsilon */ }
"~" { return '~'; /* non-AT&T: connect */ }
{SPACE} { /* ignore */ }
{WCHAR} {
yylval->c = yytext[0];
return TOK_CHAR;
}
<STATE_WEIGHT>([\+\-])?({DIGIT}*\.)?({DIGIT}+)([Ee]([\+\-]?){DIGIT}+)? {
yylval->w = strtod(yytext,NULL);
return TOK_WEIGHT;
}
<STATE_WEIGHT>\> {
BEGIN(INITIAL);
return '>';
}
<STATE_UINT>{DIGIT}+ {
BEGIN(INITIAL);
yylval->u = strtol(yytext,NULL,0);
return TOK_UINT;
}
<STATE_COMMENT>[^\n]*\n { BEGIN(INITIAL); /* ignore comments */ }
<STATE_ESCAPE>. {
BEGIN(INITIAL);
yylval->c = yytext[0];
return TOK_CHAR;
}
<STATE_BRACKETED>{UTF8PREFIX}+. {
g_string_append_len(my_gstr,yytext,yyleng);
}
<STATE_BRACKETED>{SPACE}*"]" {
unput(']');
BEGIN(STATE_BRACKETED_SEP);
if (my_gstr->len) {
yylval->gs = gfsm_gstring_dup(my_gstr);
return TOK_STRING;
}
}
<STATE_BRACKETED>{BCHAR}+ {
g_string_append(my_gstr, yytext);
}
<STATE_BRACKETED>({SPACE}*)"="({SPACE}*) {
unput('=');
BEGIN(STATE_BRACKETED_SEP);
if (my_gstr->len) {
yylval->gs = gfsm_gstring_dup(my_gstr);
return TOK_STRING;
}
}
<STATE_BRACKETED>{SPACE}+ {
unput(' ');
BEGIN(STATE_BRACKETED_SEP);
if (my_gstr->len) {
yylval->gs = gfsm_gstring_dup(my_gstr);
return TOK_STRING;
}
}
<STATE_BRACKETED>\\ {
BEGIN(STATE_BRACKETED_ESCAPE);
}
<STATE_BRACKETED_SEP>"]" {
BEGIN(INITIAL);
if (my_gstr->len) {
g_string_truncate(my_gstr,0);
return ']';
}
}
<STATE_BRACKETED_SEP>"=" {
BEGIN(STATE_BRACKETED);
g_string_truncate(my_gstr,0);
return '=';
}
<STATE_BRACKETED_SEP>" " {
BEGIN(STATE_BRACKETED);
if (my_gstr->len) {
g_string_truncate(my_gstr,0);
return ' ';
}
}
<STATE_BRACKETED_ESCAPE>. {
BEGIN(STATE_BRACKETED);
g_string_append_c(my_gstr, yytext[0]);
}
<*>. {
gfsm_scanner_carp(yyextra, "bad character '%s'", yytext);
return TOK_UNKNOWN;
}
%%
/*======================================================================
* User C Code
*/
GFSM_SCANNER_YYWRAP(compretest_yy)
|
