Function isLegalUTF8Sequence

3rdparty/ConvertUTF/ConvertUTF.cpp:429–435

* Exported function to return whether a UTF-8 sequence is legal or not. * This is not used here; it's just exported. */

 * This is not used here; it's just exported.
 */
Boolean isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd) {
    int length = trailingBytesForUTF8[*source]+1;
    if (length > sourceEnd - source) {
        return false;
    }
    return isLegalUTF8(source, length);
}

/*
 * Exported function to return the size of the first utf-8 code unit sequence,