str_del_free_space

stock str_del_free_space(string_[], _char = ' ') {
    new len = strlen(string_);
    if(len) {
        new begin = -1, end = len;
        while(string_[++begin] == _char){}
        if(string_[begin] == EOS) {
            string_[0] = 0;
            return 1;
        }
        while(string_[--end] == _char) {}
        strmid(string_, string_, begin, end+1, len+1);
    }
    return true;
}