bison1.l

/*Simple lexer to talk with bison*/
%option noyywrap case-insensitive yylineno 

%{	
# include "bison1.tab.h"
%}

BAR (bar)
PREFIX	^([ \t]*\-[ \t]*)
HTTP (http[s]?://)
FETCH	("Open"|"Go"|"Go to"|"Goto"|"Fetch"|"Get")
POST	("Put"|"Post")
CLICK   ("Click")
TYPE    ("Type")
WS	[ \t]+
ANY .+
WS_ANY {WS}{ANY} 

%%
{BAR} { 
		yylval.s=strdup(yytext); 
		return BAR; 
	}

.|\n     /* eat up any unmatched character */


%%

bison1.y

/* simple flex and bison integration. Spiking on how */

%{
#  include <stdio.h>
%}


%union {
  struct ast *a;
  char * s;
}

/* declare tokens */
%token <s> BAR



%%

foo: /* nothing */
 | foo BAR{ printf("BAR = %s\n> ", $2); }
 ;

%%
main() {
  printf("> "); 
  yyparse();
}

yyerror(char *s) {
  fprintf(stderr, "error: %s\n", s);
}

Makefile

all:	  bison-1

bison-1:	bison1.l bison1.y
	bison -d bison1.y
	flex -v -obison1.lex.c bison1.l
	gcc -o $@ bison1.tab.c bison1.lex.c

clean:
	rm -f bison-1 \
	bison1.lex.c bison1.tab.h bison1.tab.c