private static List<BidiRun> createRuns(EditorImpl editor, char[] text, int startOffsetInEditor) {
int textLength = text.length;
if (editor.myDisableRtl) return Collections.singletonList(new BidiRun((byte) 0, 0, textLength));
List<BidiRun> runs = new ArrayList<BidiRun>();
if (startOffsetInEditor >= 0) {
// running bidi algorithm separately for text fragments corresponding to different lexer
// tokens
int lastOffset = startOffsetInEditor;
IElementType lastToken = null;
HighlighterIterator iterator = editor.getHighlighter().createIterator(startOffsetInEditor);
int endOffsetInEditor = startOffsetInEditor + textLength;
while (!iterator.atEnd() && iterator.getStart() < endOffsetInEditor) {
IElementType currentToken = iterator.getTokenType();
if (distinctTokens(lastToken, currentToken)) {
int tokenStart = Math.max(iterator.getStart(), startOffsetInEditor);
addRuns(runs, text, lastOffset - startOffsetInEditor, tokenStart - startOffsetInEditor);
lastToken = currentToken;
lastOffset = tokenStart;
}
iterator.advance();
}
addRuns(
runs, text, lastOffset - startOffsetInEditor, endOffsetInEditor - startOffsetInEditor);
} else {
addRuns(runs, text, 0, textLength);
}
return runs;
}
