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fix invalid codePoint=0x110000 in icu_utf8_char() #6

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fix invalid codePoint=0x110000 in icu_utf8_char() #6

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8 changes: 4 additions & 4 deletions src/icu.utf8.c
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Original file line number Diff line number Diff line change
Expand Up @@ -365,17 +365,17 @@ static int icu_utf8_char(lua_State *L) {
luaL_addchar(&buf, (char)(0x80 | ((codePoint >> 6) & 0x3F)));
luaL_addchar(&buf, (char)(0x80 | (codePoint & 0x3F)));
}
else if (codePoint > 0x110000) {
return luaL_argerror(L,i+1,"invalid codepoint");
}
else {
else if (codePoint < 0x110000) {
// 00000000 000zzzzz yyyyyyyy xxxxxxxx
// 11110zzz 10zzyyyy 10yyyyxx 10xxxxxx
luaL_addchar(&buf, (char)(0xF0 | (codePoint >> 18)));
luaL_addchar(&buf, (char)(0x80 | ((codePoint >> 12) & 0x3F)));
luaL_addchar(&buf, (char)(0x80 | ((codePoint >> 6) & 0x3F)));
luaL_addchar(&buf, (char)(0x80 | (codePoint & 0x3F)));
}
else {
return luaL_argerror(L,i+1,"invalid codepoint");
}
}
luaL_pushresult(&buf);
return 1;
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