C++ (Cpp) _is_keyword Exemples

Exemple #1

Fichier : lexer.c Projet : sproates/ocarina

token * lex_next(lexer * lex) {
  switch(lex->state) {
    case LEX_DEF:
      _lex_adv(lex);
      if(EOF == lex->current_char) { return lex_next(_lex_set_state(lex, LEX_DONE)); }
      else if(_is_int(lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_IN_INT)); }
      else if(_is_space(lex->current_char)) { return lex_next(lex); }
      else if(_is_str_end(lex->current_char)) { return lex_next(_lex_adv(_lex_set_state(lex, LEX_IN_STR))); }
      else if(_is_id_start(lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_IN_ID)); }
      else if(_is_ctrl_char(lex->current_char)) { return _token_ctrl_char(lex->current_char); }
      else { return lex_next(_lex_set_state(lex, LEX_ERR)); }
    case LEX_IN_INT:
      if(_is_int(lex->current_char)) {
        if(0 == str_add(lex->tok_buf, lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_ERR)); }
        return lex_next(_lex_adv(lex));
      }
      return _tok_new(lex, TOK_INT, LEX_DEF);
    case LEX_IN_ID:
      if(_is_id(lex->current_char)) {
        if(0 == str_add(lex->tok_buf, lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_ERR)); }
        return lex_next(_lex_adv(lex));
      }
      if(_is_keyword(lex->tok_buf)) { return _tok_new(lex, TOK_KEY, LEX_DEF); }
      return _tok_new(lex, TOK_ID, LEX_DEF);
    case LEX_IN_STR:
      if(!_is_str_end(lex->current_char)) {
        if(_is_escape(lex->current_char)) { return lex_next(_lex_adv(_lex_set_state(lex, LEX_IN_ESC))); }
        if(0 == str_add(lex->tok_buf, lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_ERR)); }
        return lex_next(_lex_adv(lex));
      }
      return _tok_new(lex, TOK_STR, LEX_DEF);
    case LEX_IN_ESC:
      if(_is_escapable(lex->current_char)) {
        _lex_set_char(lex, _make_escape(lex->current_char));
        if(0 == str_add(lex->tok_buf, lex->current_char)) { return lex_next(_lex_set_state(lex, LEX_ERR)); }
        return lex_next(_lex_adv(_lex_set_state(lex, LEX_IN_STR)));
      }
      return lex_next(_lex_set_state(lex, LEX_ERR));
    case LEX_ERR: return _tok_new(lex, TOK_ERR, LEX_DEF);
    case LEX_DONE:
    default: return _tok_new(lex, TOK_EOF, LEX_DONE);
  }
}

Exemple #2

Fichier : base_text_editor.cpp Projet : PureGraphics/RenderTiger

QString base_text_editor::_highlight_keywords(QString src, int &tab) {
    QList<QString> tokens;
    bool in_word = false;
    QString word = "";
    for (int i = 0; i < src.size(); i++) {
        QChar c = src[i];
        if (c.isLetter() || c.isDigit() || c == '_') {
            in_word = true;
            word += c;
        } else {
            if (in_word) {
                in_word = false;
                tokens.push_back(word);
                word.clear();
            }
            tokens.push_back(c);
        }
    }
    if (!word.isEmpty())
        tokens.push_back(word);

    QString ret = "";
    tab = 0;
    for (int i = 0; i < tokens.size(); i++) {
        QString token = tokens[i];
        if (token == " ")
            ret += "&nbsp;";
        else if (token == "\n")
            ret += "<br/>";
        else if (token == "\t") {
            ret += "&nbsp;&nbsp;&nbsp;&nbsp;";
            tab += 3;
        }
        else if (token == "<")
            ret += "&lt;";
        else if (_is_keyword(token))
            ret += "<font color='#0000ff'>" + token + "</font>";
        else
            ret += token;
    }

    return ret;
}