/** Performs the default-highlighting. */
private void highlightDefault() {
// is there nothing to do?
if (_visibleArea.isInvisible() || _para.getElementLength() == 0) return;
Highlighter hl = getHighlighter();
String pText = _para.getText();
List deniedAreas = new ArrayList();
TextAttributes attributes;
// grab some vars from the highlighter
Map mlTypes = hl.getMultiCommentLimiters();
Map slTypes = hl.getSingleComments();
Map strQuotes = hl.getStringQuotes();
char escChar = hl.getEscapeChar();
Point area = _visibleArea.getArea(_para);
// at first we clear the not-denied intervals
attributes = new TextAttributes();
highlightText(area.x, area.y, attributes, pText);
// init some flags and vars
int cStart = -1;
int sStart = -1;
char sStartChar = 0;
Object stringId = null;
Object commentId = null;
boolean inStr = false;
boolean inComment = false;
boolean foundSLC = false;
// search for multiline comments and strings
for (int i = area.x, len = area.y; i < len; i++) {
char c = pText.charAt(i);
// search for strings
Object strId = null;
if (!inComment
&& (strId = getStringId(strQuotes, c)) != null
&& !StringUtils.isEscaped(pText, i, escChar)) {
// is it a closing char?
if (c == sStartChar && inStr) {
inStr = false;
TextAttributes strAttrs = hl.getStringAttributes(strId);
highlightText(sStart, i + 1, strAttrs, pText);
deniedAreas.add(new Point(sStart, i + 1));
}
// just add the start if it is a real start (not in other elements)
else if (!inStr) {
sStart = i;
sStartChar = c;
stringId = strId;
inStr = true;
}
continue;
}
// don't search comments in strings
if (!inStr) {
if (!inComment) {
// search for single-line-comments
Object slStartId = getSLCommentStart(slTypes, pText, i);
if (slStartId != null) {
// if there is one, highlight it and break here
TextAttributes slAttrs = hl.getSLCommentAttributes(slStartId);
highlightText(i, _para.getElementLength(), slAttrs, pText);
foundSLC = true;
deniedAreas.add(new Point(i, _para.getElementLength()));
break;
}
// search for comment-start-tags
Object startTagId = getCommentStart(mlTypes, pText, i);
if (startTagId != null) {
cStart = i;
inComment = true;
commentId = startTagId;
continue;
}
}
// search for comment-end-tags
Object endTagId = getCommentEnd(mlTypes, pText, i);
if (endTagId != null) {
// is the comment-start also in this paragraph?
if (inComment) {
if (mlTypes.get(commentId).equals(mlTypes.get(endTagId))) {
inComment = false;
TextAttributes mlAttrs = hl.getMLCommentAttributes(endTagId);
highlightText(cStart, i + 2, mlAttrs, pText);
deniedAreas.add(new Point(cStart, i + 2));
}
}
}
}
}
// is a comment not closed?
if (inComment && (!inStr || sStart > cStart)) {
_visibleArea.setEnd(cStart);
TextAttributes mlAttrs = hl.getMLCommentAttributes(commentId);
highlightText(cStart, _para.getElementLength(), mlAttrs, pText);
}
// is a string not closed?
else if (inStr) {
_visibleArea.setEnd(sStart);
TextAttributes strAttrs = hl.getStringAttributes(stringId);
highlightText(sStart, _para.getElementLength(), strAttrs, pText);
}
String pLower = pText.toLowerCase();
// replace keywords
Map keywords = hl.getKeywords();
Iterator it = keywords.entrySet().iterator();
while (it.hasNext()) {
Entry e = (Entry) it.next();
StringTreeMap treeMap = (StringTreeMap) e.getValue();
KeywordSettings settings = hl.getKeywordSettings(e.getKey());
replaceWords(
treeMap,
settings.isCaseSensitive() ? pText : pLower,
hl.getKeywordAttributes(e.getKey()),
deniedAreas,
settings.isCaseSensitive(),
settings.requireWord());
}
// numbers
if (hl.highlightNumbers()) {
attributes = hl.getAttributes(Highlighter.NUMBER);
Pattern p = _numberPattern;
if (p == null) {
p = Pattern.compile("\\b-?(\\d+|\\d*\\.\\d+)\\b");
_numberPattern = p;
}
Matcher m = p.matcher(pText);
while (m.find()) {
String match = m.group();
int start = m.start();
int end = start + match.length();
// highlight, if the area is not denied
if (!isInDeniedArea(deniedAreas, start, end)) {
highlightText(start, end, attributes, pText);
deniedAreas.add(new Point(start, end));
}
}
}
// symbols
replaceWords(
hl.getSymbols(), pLower, hl.getAttributes(Highlighter.SYMBOL), deniedAreas, true, false);
// other regeexps
if (hl.getRegexps().size() > 0) {
Map regexps = hl.getRegexps();
it = regexps.entrySet().iterator();
while (it.hasNext()) {
Entry e = (Entry) it.next();
attributes = hl.getRegexpAttributes(e.getKey());
RegExDesc regex = (RegExDesc) e.getValue();
// find matches
Matcher m = regex.getPattern().matcher(pText);
while (m.find()) {
String match = m.group(regex.getGroup());
int start = m.start(regex.getGroup());
int end = start + match.length();
// highlight, if the area is not denied
if (!isInDeniedArea(deniedAreas, start, end)) {
highlightText(start, end, attributes, pText);
}
}
}
}
removeStrings();
removeStringStarts();
removeComments();
removeCommentStarts();
// mark the paragraph-content as dirty, because applyAttributes() does not
// mark the sections as dirty!
_para.getTextField().getViewManager().markParagraphDirty(_para);
// comment-start?
if (inComment && (!inStr || sStart > cStart)) {
if (_visibleArea.isVisible(cStart))
_hlTypes.add(new HighlightType(HighlightType.CONTAINS_OTHER));
_hlTypes.add(new HighlightType(HighlightType.CONTAINS_COMMENT_START, commentId));
return;
}
// open string?
if (inStr && !foundSLC) {
if (_visibleArea.isVisible(sStart))
_hlTypes.add(new HighlightType(HighlightType.CONTAINS_OTHER));
_hlTypes.add(
new HighlightType(
HighlightType.CONTAINS_STRING_START, getStringId(strQuotes, sStartChar)));
return;
}
// default
removeOther();
_hlTypes.add(new HighlightType(HighlightType.CONTAINS_OTHER));
_visibleArea.setEnd();
}
