qscripthighlighter.cpp

来自「奇趣公司比较新的qt/emd版本」· C++ 代码 · 共 460 行 · 第 1/2 页

                        || state == StateNumber
                        || state == StatePreProcessor
                        || state == StateCCommentEnd2
                        || state == StateCCommentEnd1
                        || state == StateString2End
                        || state == StateStringEnd
                       )
                        //blockData->parentheses << Parenthesis(Parenthesis::Open, c, i);
                    break;
                case ')': case ']': case '}':
                    input = InputParen;
                    if (state == StateStandard
                        || state == StateNumber
                        || state == StatePreProcessor
                        || state == StateCCommentEnd2
                        || state == StateCCommentEnd1
                        || state == StateString2End
                        || state == StateStringEnd
                       ) {
                        //blockData->parentheses << Parenthesis(Parenthesis::Closed, c, i);
                    }
                    break;
                case '#':
                    input = InputHash;
                    break;
                case '"':
                    input = InputQuotation;
                    break;
                case '\'':
                    input = InputApostrophe;
                    break;
                case ' ':
                    input = InputSpace;
                    break;
                case '1': case '2': case '3': case '4': case '5':
                case '6': case '7': case '8': case '9': case '0':
                    if (alphabeth.contains(lastChar)
                        && (!mathChars.contains(lastChar) || !numbers.contains(text.at(i - 1)))) {
                        input = InputAlpha;
                    } else {
                        if (input == InputAlpha && numbers.contains(lastChar))
                            input = InputAlpha;
                        else
                            input = InputNumber;
                    }
                    break;
                case ':': {
                              input = InputAlpha;
                              QChar nextChar = ' ';
                              if (i < text.length() - 1)
                                  nextChar = text.at(i + 1);
                              if (state == StateStandard && !questionMark &&
                                  lastChar != ':' && nextChar != ':') {
                                  for (int j = 0; j < i; ++j) {
                                      if (format(j) == emptyFormat)
                                          setFormat(j, 1, m_labelFormat);
                                  }
                              }
                              break;
                          }
                default: {
                             if (!questionMark && c == QLatin1Char('?'))
                                 questionMark = true;
                             if (c.isLetter() || c == QLatin1Char('_'))
                                 input = InputAlpha;
                             else
                                 input = InputSep;
                         } break;
            }
        }

        lastWasBackSlash = !lastWasBackSlash && c == QLatin1Char('\\');

        if (input == InputAlpha)
            buffer.inline_append(c);

        state = table[state][input];

        switch (state) {
            case StateStandard: {
                                    setFormat(i, 1, emptyFormat);
                                    if (makeLastStandard)
                                        setFormat(i - 1, 1, emptyFormat);
                                    makeLastStandard = false;
                                    if (!buffer.isEmpty() && input != InputAlpha ) {
                                        highlightKeyword(i, buffer);
                                        buffer.clear();
                                    }
                                } break;
            case StateCommentStart1:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = true;
                                buffer.resize(0);
                                break;
            case StateCCommentStart2:
                                setFormat(i - 1, 2, m_commentFormat);
                                makeLastStandard = false;
                                buffer.resize(0);
                                break;
            case StateCppCommentStart2:
                                setFormat(i - 1, 2, m_commentFormat);
                                makeLastStandard = false;
                                buffer.resize(0);
                                break;
            case StateCComment:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_commentFormat);
                                buffer.resize(0);
                                break;
            case StateCppComment:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_commentFormat);
                                buffer.resize(0);
                                break;
            case StateCCommentEnd1:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_commentFormat);
                                buffer.resize(0);
                                break;
            case StateCCommentEnd2:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_commentFormat);
                                buffer.resize(0);
                                break;
            case StateStringStart:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, emptyFormat);
                                buffer.resize(0);
                                break;
            case StateString:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_stringFormat);
                                buffer.resize(0);
                                break;
            case StateStringEnd:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, emptyFormat);
                                buffer.resize(0);
                                break;
            case StateString2Start:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, emptyFormat);
                                buffer.resize(0);
                                break;
            case StateString2:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_stringFormat);
                                buffer.resize(0);
                                break;
            case StateString2End:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, emptyFormat);
                                buffer.resize(0);
                                break;
            case StateNumber:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat( i, 1, m_numberFormat);
                                buffer.resize(0);
                                break;
            case StatePreProcessor:
                                if (makeLastStandard)
                                    setFormat(i - 1, 1, emptyFormat);
                                makeLastStandard = false;
                                setFormat(i, 1, m_preProcessorFormat);
                                buffer.resize(0);
                                break;
        }

        lastChar = c;
        i++;
        if (i >= text.length())
            break;
    }

    highlightKeyword(text.length(), buffer);

    if (state == StateCComment
        || state == StateCCommentEnd1
        || state == StateCCommentStart2
       ) {
        state = StateCComment;
    } else if (state == StateString) {
        state = StateString;
    } else if (state == StateString2) {
        state =  StateString2;
    } else {
        state = StateStandard;
    }

    setCurrentBlockState(state);
}

void QScriptHighlighter::highlightKeyword(int currentPos, const QString &buffer)
{
    if (buffer.isEmpty())
        return;

    if (buffer.at(0) == QLatin1Char('Q')) {
        setFormat(currentPos - buffer.length(), buffer.length(), m_typeFormat);
    } else {
        if (qscriptKeywords().contains(buffer)) {
            setFormat(currentPos - buffer.length(), buffer.length(), m_keywordFormat);
        }
    }
}
}