On Monday, February 4 at 10:15 AM, quoth Daniele:
>Hi,
>when wcalc starts and I type twice \eng it crashes:
>
>Enter an expression to evaluate, q to quit, or ? for help:
>-> \eng
>Engineering notation is enabled
> = 0
>-> \eng
>Segmentation Fault

Ahh, I see the error. Attached is the patch to fix it. I've committed
the fix to CVS, and also added a few more bits to be a little more
careful in other places where wcalc does something similar.

~Kyle
--
You never truly understand a thing until you can explain it to your
grandmother.
-- Albert Einstein

Index: scanner.l
===================================================================
RCS file: /cvsroot/w-calc/Wcalc/scanner.l,v
retrieving revision 1.93
diff -u -3 -p -r1.93 scanner.l
--- scanner.l 5 Dec 2007 18:07:03 -0000 1.93
+++ scanner.l 4 Feb 2008 19:58:20 -0000
@@ -97,9 +97,12 @@ SPACE [ ]
}
\\e(ng(ineering)?)?{WHITESPACE}*{DIGIT}* {
int i = 2;
- while (! isdigit((int)(yytext[i]))) ++i;
- if (yytext[i] != 0) YYLVALAC->integer = strtoul(yytext+i, NULL, 0);
- else YYLVALAC->integer = -1;
+ while (yytext[i] != 0 && ! isdigit((int)(yytext[i]))) ++i;
+ if (yytext[i] != 0 && yytext[i] != '\n') {
+ YYLVALAC->integer = strtoul(yytext+i, NULL, 0);
+ } else {
+ YYLVALAC->integer = -1;
+ }
line_is_a_command = 1;
POS_STR();
return(ENG_CMD);