Esempio n. 1
0
  @NotNull
  private static Pair<CharSequence, String> convertLineSeparators(@NotNull CharBuffer buffer) {
    int dst = 0;
    char prev = ' ';
    int crCount = 0;
    int lfCount = 0;
    int crlfCount = 0;

    final int length = buffer.length();
    final char[] bufferArray = CharArrayUtil.fromSequenceWithoutCopying(buffer);

    for (int src = 0; src < length; src++) {
      char c = bufferArray != null ? bufferArray[src] : buffer.charAt(src);
      switch (c) {
        case '\r':
          if (bufferArray != null) bufferArray[dst++] = '\n';
          else buffer.put(dst++, '\n');
          crCount++;
          break;
        case '\n':
          if (prev == '\r') {
            crCount--;
            crlfCount++;
          } else {
            if (bufferArray != null) bufferArray[dst++] = '\n';
            else buffer.put(dst++, '\n');
            lfCount++;
          }
          break;
        default:
          if (bufferArray != null) bufferArray[dst++] = c;
          else buffer.put(dst++, c);
          break;
      }
      prev = c;
    }

    String detectedLineSeparator = null;
    if (crlfCount > crCount && crlfCount > lfCount) {
      detectedLineSeparator = "\r\n";
    } else if (crCount > lfCount) {
      detectedLineSeparator = "\r";
    } else if (lfCount > 0) {
      detectedLineSeparator = "\n";
    }

    CharSequence result;
    if (buffer.length() == dst) {
      result = buffer;
    } else {
      // in Mac JDK CharBuffer.subSequence() signature differs from Oracle's
      // more than that, the signature has changed between jd6 and jdk7,
      // so use more generic CharSequence.subSequence() just in case
      @SuppressWarnings("UnnecessaryLocalVariable")
      CharSequence seq = buffer;
      result = seq.subSequence(0, dst);
    }
    return Pair.create(result, detectedLineSeparator);
  }
Esempio n. 2
0
 public void reset(CharSequence buffer, int start, int end, int initialState) {
   zzBuffer = buffer;
   zzBufferArray = com.intellij.util.text.CharArrayUtil.fromSequenceWithoutCopying(buffer);
   zzCurrentPos = zzMarkedPos = zzStartRead = start;
   zzPushbackPos = 0;
   zzAtEOF = false;
   zzAtBOL = true;
   zzEndRead = end;
   yybegin(initialState);
 }
Esempio n. 3
0
  @Override
  public boolean textContains(char c) {
    final CharSequence text = myText;
    final int len = myText.length();

    if (len > TEXT_MATCHES_THRESHOLD) {
      char[] chars = CharArrayUtil.fromSequenceWithoutCopying(myText);
      if (chars != null) {
        for (char aChar : chars) {
          if (aChar == c) return true;
        }
        return false;
      }
    }

    for (int i = 0; i < len; ++i) {
      if (c == text.charAt(i)) return true;
    }

    return false;
  }