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remove TOK_ from tokens to make error messages better. Make lexer case insensitive

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This commit is contained in:
Ron Pedde 2003-12-05 05:58:29 +00:00
parent 67e17f22f2
commit 9744ab3830
1 changed files with 20 additions and 36 deletions
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56
src/lexer.l
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@ -5,8 +5,11 @@
* Simple playlist lexer * Simple playlist lexer
*/ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h> #include <string.h>
#include "err.h"
#include "playlist.h" #include "playlist.h"
#include "parser.h" #include "parser.h"
@ -15,33 +18,39 @@ extern int yydebug;
%} %}
%option yylineno %option yylineno
%option case-insensitive
qstring \"[^\"\n]*[\"\n]
%% %%
[\n\t ]+ [\n\t ]+
artist { yylval.ival=TOK_ARTIST; return(TOK_ARTIST); } artist { yylval.ival=ARTIST; return(ARTIST); }
album { yylval.ival=TOK_ALBUM; return(TOK_ALBUM); } album { yylval.ival=ALBUM; return(ALBUM); }
genre { yylval.ival=TOK_GENRE; return(TOK_GENRE); } genre { yylval.ival=GENRE; return(GENRE); }
is | is |
= { yylval.ival=TOK_IS; return(TOK_IS); } = { yylval.ival=IS; return(IS); }
includes | includes |
=~ | =~ |
~= { yylval.ival=TOK_INCLUDES; return(TOK_INCLUDES); } ~= { yylval.ival=INCLUDES; return(INCLUDES); }
or | or |
\|\| { yylval.ival=TOK_OR; return(TOK_OR); } \|\| { yylval.ival=OR; return(OR); }
and | and |
&& { yylval.ival=TOK_AND; return(TOK_AND); } && { yylval.ival=AND; return(AND); }
not | not |
! { yylval.ival=1; return(TOK_NOT); } ! { yylval.ival=1; return(NOT); }
\"[A-Za-z0-9 ]*\" { yylval.cval=strdup(yytext); return(TOK_ID); } {qstring} { yylval.cval=strdup(yytext+1);
if(yylval.cval[strlen(yylval.cval)-1] == '"');
yylval.cval[strlen(yylval.cval)-1] = '\0';
return(ID); }
. { return yytext[0]; } . { return yytext[0]; }
@ -52,33 +61,8 @@ int yywrap(void) {
} }
void yyerror(char *msg) { void yyerror(char *msg) {
printf("\nParser Error: Line %d: %s\n",yylineno, msg); pl_error=1;
printf("Wish I could be more helpful. :(\n\n"); log_err(0,"Line %d: %s\n",yylineno, msg);
printf("If you know how to generate good yacc errors, please\n");
printf("Let me know!\n\n");
exit(0);
} }
/*
int main(int argc, char *argv[]) {
FILE *fin;
int result;
yydebug=1;
fin=fopen(argv[1],"r");
if(!fin) {
perror("fopen");
return 1;
}
yyin=fin;
result=yyparse();
printf("Parsed... result = %d\n", result);
pl_dump();
return 0;
}
*/