Method parse_string1

crawl-ref/source/format.cc:142–265

Helper for the other parse_ methods.

// Helper for the other parse_ methods.
void formatted_string::parse_string1(const string &s, formatted_string &fs,
                                     vector<int> &colour_stack,
                                     vector<int> &bg_stack)
{
    // FIXME: This is a lame mess, just good enough for the task on hand
    // (keyboard help).
    string::size_type tag    = string::npos;
    string::size_type length = s.length();

    string currs;

    for (tag = 0; tag < length; ++tag)
    {
        bool revert_colour = false;
        bool bg = false;
        string::size_type endpos = string::npos;

        // Break string up if it gets too big.
        // XX why is 999 "too big"???
        if (currs.size() >= 999)
        {
            // Break the string at the end of a line, if possible, so
            // that none of the broken string ends up overwritten.
            string::size_type bound = currs.rfind("\n", 999);
            if (bound != endpos)
                bound++;
            else
                bound = 999;

            fs.cprintf(currs.substr(0, bound));
            if (currs.size() > bound)
                currs = currs.substr(bound);
            else
                currs.clear();
            tag--;
            continue;
        }

        if (s[tag] != '<' || tag >= length - 1)
        {
            currs += s[tag];
            continue;
        }

        // Is this a << escape?
        if (s[tag + 1] == '<')
        {
            currs += s[tag];
            tag++;
            continue;
        }

        // trying to parse a color tag below here
        endpos = s.find('>', tag + 1);
        // No closing >?
        if (endpos == string::npos)
        {
            currs += s[tag];