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b2/lang.l: print file name in diagnostics

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This commit is contained in:
Werner Almesberger 2012-05-01 15:07:38 -03:00
parent 9a06757420
commit 5d7f4fc662
1 changed files with 6 additions and 3 deletions
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9
b2/lang.l
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@ -26,6 +26,7 @@ extern int yyparse(void);
static int start_token;
static int expose_nl;
static const char *file_name;
static int lineno;
@ -48,8 +49,10 @@ static void open_stdin(const char *name)
static void do_parse(const char *name, int start, int nl)
{
open_stdin(name);
start_token = start;
expose_nl = nl;
file_name = unique(name);
lineno = 1;
yyparse();
}
@ -132,7 +135,7 @@ void yywarnf(const char *fmt, ...)
va_list ap;
va_start(ap, fmt);
fprintf(stderr, "%d: warning: ", lineno);
fprintf(stderr, "%s:%d: warning: ", file_name, lineno);
vfprintf(stderr, fmt, ap) ;
fprintf(stderr, "\n");
va_end(ap);
@ -144,7 +147,7 @@ void yyerrorf(const char *fmt, ...)
va_list ap;
va_start(ap, fmt);
fprintf(stderr, "%d: ", lineno);
fprintf(stderr, "%s:%d: ", file_name, lineno);
vfprintf(stderr, fmt, ap) ;
fprintf(stderr, "\n");
va_end(ap);
@ -154,6 +157,6 @@ void yyerrorf(const char *fmt, ...)
void yyerror(const char *s)
{
fprintf(stderr, "%d: %s\n", lineno, s);
fprintf(stderr, "%s:%d: %s\n", file_name, lineno, s);
exit(1);
}