Function hasSubstitutionErrors

tools/aapt/XMLNode.cpp:79–182

}

status_t hasSubstitutionErrors(const char* fileName,
                               ResXMLTree* inXml,
                               String16 str16)
{
    const char16_t* str = str16.string();
    const char16_t* p = str;
    const char16_t* end = str + str16.size();

    bool nonpositional = false;
    int argCount = 0;

    while (p < end) {
        /*
         * Look for the start of a Java-style substitution sequence.
         */
        if (*p == '%' && p + 1 < end) {
            p++;

            // A literal percent sign represented by %%
            if (*p == '%') {
                p++;
                continue;
            }

            argCount++;

            if (*p >= '0' && *p <= '9') {
                do {
                    p++;
                } while (*p >= '0' && *p <= '9');
                if (*p != '$') {
                    // This must be a size specification instead of position.
                    nonpositional = true;
                }
            } else if (*p == '<') {
                // Reusing last argument; bad idea since it can be re-arranged.
                nonpositional = true;
                p++;

                // Optionally '$' can be specified at the end.
                if (p < end && *p == '$') {
                    p++;
                }
            } else {
                nonpositional = true;
            }

            // Ignore flags and widths
            while (p < end && (*p == '-' ||
                    *p == '#' ||
                    *p == '+' ||
                    *p == ' ' ||
                    *p == ',' ||
                    *p == '(' ||
                    (*p >= '0' && *p <= '9'))) {
                p++;
            }