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update lua 5.5.1

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This commit is contained in:
Cloud Wu
2026-07-19 18:22:02 +08:00
parent f19d1605b4
commit 5027096d53
34 changed files with 312 additions and 213 deletions
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7
3rd/lua/lutf8lib.c
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@@ -56,6 +56,8 @@ static const char *utf8_decode (const char *s, l_uint32 *val, int strict) {
l_uint32 res = 0; /* final result */
if (c < 0x80) /* ASCII? */
res = c;
else if (c >= 0xfe) /* c >= 1111 1110b ? */
return NULL; /* would need six or more continuation bytes */
else {
int count = 0; /* to count number of continuation bytes */
for (; c & 0x40; c <<= 1) { /* while it needs continuation bytes... */
@@ -64,8 +66,9 @@ static const char *utf8_decode (const char *s, l_uint32 *val, int strict) {
return NULL; /* invalid byte sequence */
res = (res << 6) | (cc & 0x3F); /* add lower 6 bits from cont. byte */
}
lua_assert(count <= 5);
res |= ((l_uint32)(c & 0x7F) << (count * 5)); /* add first byte */
if (count > 5 || res > MAXUTF || res < limits[count])
if (res > MAXUTF || res < limits[count])
return NULL; /* invalid byte sequence */
s += count; /* skip continuation bytes read */
}
@@ -146,7 +149,7 @@ static int codepoint (lua_State *L) {
static void pushutfchar (lua_State *L, int arg) {
lua_Unsigned code = (lua_Unsigned)luaL_checkinteger(L, arg);
luaL_argcheck(L, code <= MAXUTF, arg, "value out of range");
lua_pushfstring(L, "%U", (long)code);
lua_pushfstring(L, "%U", cast(unsigned long, code));
}