diff options
Diffstat (limited to 'Src/math.c')
| -rw-r--r-- | Src/math.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Src/math.c b/Src/math.c index b57ba42d4..1d0d86639 100644 --- a/Src/math.c +++ b/Src/math.c @@ -840,13 +840,18 @@ zzlex(void) if (*ptr == '#') { if (*++ptr == '\\' || *ptr == '#') { int v; + char *optr = ptr; ptr++; if (!*ptr) { zerr("bad math expression: character missing after ##"); return EOI; } - ptr = getkeystring(ptr, NULL, GETKEYS_MATH, &v); + if(!(ptr = getkeystring(ptr, NULL, GETKEYS_MATH, &v))) { + zerr("bad math expression: bad character after ##"); + ptr = optr; + return EOI; + } yyval.u.l = v; return NUM; } |