small bug in lua.c in 5.1 work6
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- Subject: small bug in lua.c in 5.1 work6
- From: Rici Lake <lua@...>
- Date: 2005年6月20日 14:20:30 -0500
In Lua 5.0.2, lua.c contains:
static int incomplete (int status) {
if (status == LUA_ERRSYNTAX &&
strstr(lua_tostring(L, -1), "near `<eof>'") != NULL) {
lua_pop(L, 1);
return 1;
}
else
return 0;
}
In 5.1work 6, the test at the third line was incorrectly simplified to:
strstr(lua_tostring(L, -1), "<eof>") != NULL) {
Unfortunately:
> =loadstring("do", "foo")
nil [string "foo"]:1: `end' expected near `<eof>'
> =loadstring("end", "foo")
nil [string "foo"]:1: <eof> expected near `end'
So the latter error message always causes incomplete to return 1, and
if you ever type an unmatched end at the standalone interpreter, you
have no escape.
R.