diff options
Diffstat (limited to 'contrib/lua-lpeg')
| -rw-r--r-- | contrib/lua-lpeg/lpvm.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/contrib/lua-lpeg/lpvm.c b/contrib/lua-lpeg/lpvm.c index 4ef424579..6058bf5b1 100644 --- a/contrib/lua-lpeg/lpvm.c +++ b/contrib/lua-lpeg/lpvm.c @@ -306,27 +306,39 @@ const char *match (lua_State *L, const char *o, const char *s, const char *e, continue; } case IChar: { - if ((byte)*s == p->i.aux && s < e) { p++; s++; } + if (s < e && (byte)*s == p->i.aux) { p++; s++; } else goto fail; continue; } case ITestChar: { - if ((byte)*s == p->i.aux && s < e) p += 2; + if (s < e && (byte)*s == p->i.aux) p += 2; else p += getoffset(p); continue; } case ISet: { - int c = (byte)*s; - if (testchar((p+1)->buff, c) && s < e) - { p += CHARSETINSTSIZE; s++; } - else goto fail; + if (s < e) { + int c = (byte) *s; + if (testchar((p + 1)->buff, c)) { + p += CHARSETINSTSIZE; + s++; + } + else goto fail; + } + else { + goto fail; + } continue; } case ITestSet: { - int c = (byte)*s; - if (testchar((p + 2)->buff, c) && s < e) - p += 1 + CHARSETINSTSIZE; - else p += getoffset(p); + if (s < e) { + int c = (byte) *s; + if (testchar((p + 2)->buff, c)) + p += 1 + CHARSETINSTSIZE; + else p += getoffset(p); + } + else { + p += getoffset(p); + } continue; } case IBehind: { |