Function multiCompareImpl

lib/token.cpp:550–603

need to use the old syntax since the C++11 [[xxx:always_inline]] cannot be used here

#if defined(__GNUC__)
// need to use the old syntax since the C++11 [[xxx:always_inline]] cannot be used here
inline __attribute__((always_inline))
#endif
int multiCompareImpl(const Token *tok, const char *haystack, nonneg int varid)
{
    const char *needle = tok->str().c_str();
    const char *needlePointer = needle;
    for (;;) {
        if (needlePointer == needle && haystack[0] == '%' && haystack[1] != '|' && haystack[1] != '\0' && haystack[1] != ' ' && haystack[1] != '=') {
            const int ret = multiComparePercent(tok, haystack, varid);
            if (ret < 2)
                return ret;
        } else if (*haystack == '|') {
            if (*needlePointer == 0) {
                // If needle is at the end, we have a match.
                return 1;
            }

            needlePointer = needle;
            ++haystack;
        } else if (*needlePointer == *haystack) {
            if (*needlePointer == '\0')
                return 1;
            ++needlePointer;
            ++haystack;
        } else if (*haystack == ' ' || *haystack == '\0') {
            if (needlePointer == needle)
                return 0;
            break;
        }
        // If haystack and needle don't share the same character,
        // find next '|' character.
        else {
            needlePointer = needle;

            do {
                ++haystack;

                if (*haystack == ' ' || *haystack == '\0') {
                    return -1;
                }
                if (*haystack == '|') {
                    break;
                }
            } while (true);

            ++haystack;
        }
    }

    if (*needlePointer == '\0')
        return 1;

    return -1;
}

// cppcheck-suppress unusedFunction - used in tests only
int Token::multiCompare(const Token *tok, const char *haystack, nonneg int varid)