int ini_parse()

in lib/ini.c [59:141]

• 67 lines of code
• 20 McCabe index (conditional complexity)

int ini_parse(FILE *file,
              int (*handler)(void*, const char*, const char*, const char*),
              void* user)
{
    /* Uses a fair bit of stack (use heap instead if you need to) */
    char line[MAX_LINE];
    char section[MAX_SECTION] = "";
    char prev_name[MAX_NAME] = "";

    char* start;
    char* end;
    char* name;
    char* value;
    int lineno = 0;
    int error = 0;

    /* Scan through file line by line */
    while (fgets(line, sizeof(line), file) != NULL) {
        lineno++;
        start = lskip(rstrip(line));

#if INI_ALLOW_MULTILINE
        if (*prev_name && *start && start > line) {
            /* Non-black line with leading whitespace, treat as continuation
               of previous name's value (as per Python ConfigParser). */
            value = lskip(start);
            /* Skip line if this line is a comment with whitespace infront */
            if (*value == ';') {
                continue;
            }
            if (!handler(user, section, prev_name, start) && !error) {
                error = lineno;
                break;
            }
        }
        else
#endif
        if (*start == ';' || *start == '#') {
            /* Per Python ConfigParser, allow '#' comments at start of line */
        }
        else if (*start == '[') {
            /* A "[section]" line */
            end = find_char_or_comment(start + 1, ']');
            if (*end == ']') {
                *end = '\0';
                strncpy0(section, start + 1, sizeof(section));
                *prev_name = '\0';
            }
            else if (!error) {
                /* No ']' found on section line */
                error = lineno;
                break;
            }
        }
        else if (*start && *start != ';') {
            /* Not a comment, must be a name=value pair */
            end = find_char_or_comment(start, '=');
            if (*end == '=') {
                *end = '\0';
                name = rstrip(start);
                value = lskip(end + 1);
                end = find_char_or_comment(value, '\0');
                if (*end == ';')
                    *end = '\0';
                rstrip(value);

                /* Valid name=value pair found, call handler */
                strncpy0(prev_name, name, sizeof(prev_name));
                if (!handler(user, section, name, value) && !error) {
                    error = lineno;
                    break;
                }
            }
            else if (!error) {
                /* No '=' found on name=value line */
                error = lineno;
                break;
            }
        }
    }

    return error;
}