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Added code folding and formatted all files

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SuspiciousActivity committed 2018-07-08 14:39:06 +02:00
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commit 66cd1dbd3e
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src/org/fife/ui/rsyntaxtextarea/RSyntaxDocument.java
+140 -155
View File
@@ -1,10 +1,8 @@
/*
* 10/16/2004
*
* RSyntaxDocument.java - A document capable of syntax highlighting, used by
* RSyntaxTextArea.
*
* This library is distributed under a modified BSD license. See the included
* This library is distributed under a modified BSD license. See the included
* RSyntaxTextArea.License.txt file for details.
*/
package org.fife.ui.rsyntaxtextarea;
@@ -51,45 +49,43 @@ import me.ByteEdit.main.JavaAssemblyTokenMaker;
* @version 1.0
*/
public class RSyntaxDocument extends RDocument implements Iterable<Token>, SyntaxConstants {
/**
* Creates a {@link TokenMaker} appropriate for a given programming language.
* Creates a {@link TokenMaker} appropriate for a given programming
* language.
*/
private transient TokenMakerFactory tokenMakerFactory;
/**
* Splits text into tokens for the current programming language.
*/
private transient TokenMaker tokenMaker;
/**
* The current syntax style. Only cached to keep this class serializable.
*/
private String syntaxStyle;
/**
* Array of values representing the "last token type" on each line. This is used
* Array of values representing the "last token type" on each line. This is
* used
* in cases such as multi-line comments: if the previous line ended with an
* (unclosed) multi-line comment, we can use this knowledge and start the
* current line's syntax highlighting in multi-line comment state.
*/
protected transient DynamicIntArray lastTokensOnLines;
private transient int lastLine = -1;
private transient Token cachedTokenList;
private transient int useCacheCount = 0;
private transient int tokenRetrievalCount = 0;
private transient Segment s;
/**
* If this is set to <code>true</code>, debug information about how much token
* If this is set to <code>true</code>, debug information about how much
* token
* caching is helping is printed to stdout.
*/
private static final boolean DEBUG_TOKEN_CACHING = false;
/**
* Constructs a plain text document. A default root element is created, and the
* Constructs a plain text document. A default root element is created, and
* the
* tab size set to 5.
*
* @param syntaxStyle
@@ -98,13 +94,15 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public RSyntaxDocument(String syntaxStyle) {
this(null, syntaxStyle);
}
/**
* Constructs a plain text document. A default root element is created, and the
* Constructs a plain text document. A default root element is created, and
* the
* tab size set to 5.
*
* @param tmf
* The <code>TokenMakerFactory</code> for this document. If this is
* The <code>TokenMakerFactory</code> for this document. If this
* is
* <code>null</code>, a default factory is used.
* @param syntaxStyle
* The syntax highlighting scheme to use.
@@ -117,13 +115,15 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
setTokenMakerFactory(tmf);
setSyntaxStyle(syntaxStyle);
}
/**
* Alerts all listeners to this document of an insertion. This is overridden so
* Alerts all listeners to this document of an insertion. This is overridden
* so
* we can update our syntax highlighting stuff.
* <p>
* The syntax highlighting stuff has to be here instead of in
* <code>insertUpdate</code> because <code>insertUpdate</code> is not called by
* <code>insertUpdate</code> because <code>insertUpdate</code> is not called
* by
* the undo/redo actions, but this method is.
*
* @param e
@@ -131,72 +131,59 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
*/
@Override
protected void fireInsertUpdate(DocumentEvent e) {
cachedTokenList = null;
/*
* Now that the text is actually inserted into the content and element
* structure, we can update our token elements and "last tokens on lines"
* structure, we can update our token elements and
* "last tokens on lines"
* structure.
*/
Element lineMap = getDefaultRootElement();
DocumentEvent.ElementChange change = e.getChange(lineMap);
Element[] added = change == null ? null : change.getChildrenAdded();
int numLines = lineMap.getElementCount();
int line = lineMap.getElementIndex(e.getOffset());
int previousLine = line - 1;
int previousTokenType = (previousLine > -1 ? lastTokensOnLines.get(previousLine) : Token.NULL);
// If entire lines were added...
if (added != null && added.length > 0) {
Element[] removed = change.getChildrenRemoved();
int numRemoved = removed != null ? removed.length : 0;
int endBefore = line + added.length - numRemoved;
// System.err.println("... adding lines: " + line + " - " + (endBefore-1));
// System.err.println("... ... added: " + added.length + ", removed:" +
// System.err.println("... adding lines: " + line + " - " +
// (endBefore-1));
// System.err.println("... ... added: " + added.length + ",
// removed:" +
// numRemoved);
for (int i = line; i < endBefore; i++) {
setSharedSegment(i); // Loads line i's text into s.
int tokenType = tokenMaker.getLastTokenTypeOnLine(s, previousTokenType);
lastTokensOnLines.add(i, tokenType);
// System.err.println("--------- lastTokensOnLines.size() == " +
// lastTokensOnLines.getSize());
previousTokenType = tokenType;
} // End of for (int i=line; i<endBefore; i++).
// Update last tokens for lines below until they stop changing.
// Update last tokens for lines below until they stop changing.
updateLastTokensBelow(endBefore, numLines, previousTokenType);
} // End of if (added!=null && added.length>0).
// Otherwise, text was inserted on a single line...
// Otherwise, text was inserted on a single line...
else {
// Update last tokens for lines below until they stop changing.
updateLastTokensBelow(line, numLines, previousTokenType);
} // End of else.
// Let all listeners know about the insertion.
// Let all listeners know about the insertion.
super.fireInsertUpdate(e);
}
/**
* This method is called AFTER the content has been inserted into the document
* This method is called AFTER the content has been inserted into the
* document
* and the element structure has been updated.
* <p>
* The syntax-highlighting updates need to be done here (as opposed to an
* override of <code>postRemoveUpdate</code>) as this method is called in
* response to undo/redo events, whereas <code>postRemoveUpdate</code> is not.
* response to undo/redo events, whereas <code>postRemoveUpdate</code> is
* not.
* <p>
* Now that the text is actually inserted into the content and element
* structure, we can update our token elements and "last tokens on lines"
@@ -208,77 +195,71 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
*/
@Override
protected void fireRemoveUpdate(DocumentEvent chng) {
cachedTokenList = null;
Element lineMap = getDefaultRootElement();
int numLines = lineMap.getElementCount();
DocumentEvent.ElementChange change = chng.getChange(lineMap);
Element[] removed = change == null ? null : change.getChildrenRemoved();
// If entire lines were removed...
if (removed != null && removed.length > 0) {
int line = change.getIndex(); // First line entirely removed.
int previousLine = line - 1; // Line before that.
int previousTokenType = (previousLine > -1 ? lastTokensOnLines.get(previousLine) : Token.NULL);
Element[] added = change.getChildrenAdded();
int numAdded = added == null ? 0 : added.length;
// Remove the cached last-token values for the removed lines.
int endBefore = line + removed.length - numAdded;
// System.err.println("... removing lines: " + line + " - " + (endBefore-1));
// System.err.println("... removing lines: " + line + " - " +
// (endBefore-1));
// System.err.println("... added: " + numAdded + ", removed: " +
// removed.length);
lastTokensOnLines.removeRange(line, endBefore); // Removing values for lines [line-(endBefore-1)].
lastTokensOnLines.removeRange(line, endBefore); // Removing values
// for lines
// [line-(endBefore-1)].
// System.err.println("--------- lastTokensOnLines.size() == " +
// lastTokensOnLines.getSize());
// Update last tokens for lines below until they've stopped changing.
// Update last tokens for lines below until they've stopped
// changing.
updateLastTokensBelow(line, numLines, previousTokenType);
} // End of if (removed!=null && removed.size()>0).
// Otherwise, text was removed from just one line...
// Otherwise, text was removed from just one line...
else {
int line = lineMap.getElementIndex(chng.getOffset());
if (line >= lastTokensOnLines.getSize()) {
return; // If we're editing the last line in a document...
}
int previousLine = line - 1;
int previousTokenType = (previousLine > -1 ? lastTokensOnLines.get(previousLine) : Token.NULL);
// System.err.println("previousTokenType for line : " + previousLine + " is " +
// System.err.println("previousTokenType for line : " + previousLine
// + " is " +
// previousTokenType);
// Update last tokens for lines below until they've stopped changing.
// Update last tokens for lines below until they've stopped
// changing.
updateLastTokensBelow(line, numLines, previousTokenType);
}
// Let all of our listeners know about the removal.
super.fireRemoveUpdate(chng);
}
/**
* Returns the closest {@link TokenTypes "standard" token type} for a given
* "internal" token type (e.g. one whose value is <code>&lt; 0</code>).
*
* @param type
* The token type.
* @return The closest "standard" token type. If a mapping is not defined for
* @return The closest "standard" token type. If a mapping is not defined
* for
* this language, then <code>type</code> is returned.
*/
public int getClosestStandardTokenTypeForInternalType(int type) {
return tokenMaker.getClosestStandardTokenTypeForInternalType(type);
}
/**
* Returns whether closing markup tags should be automatically completed. This
* method only returns <code>true</code> if {@link #getLanguageIsMarkup()} also
* Returns whether closing markup tags should be automatically completed.
* This
* method only returns <code>true</code> if {@link #getLanguageIsMarkup()}
* also
* returns <code>true</code>.
*
* @return Whether markup closing tags should be automatically completed.
@@ -288,14 +269,15 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
// TODO: Remove terrible dependency on AbstractMarkupTokenMaker
return getLanguageIsMarkup() && ((AbstractMarkupTokenMaker) tokenMaker).getCompleteCloseTags();
}
/**
* Returns whether the current programming language uses curly braces
* ('<code>{</code>' and '<code>}</code>') to denote code blocks.
*
* @param languageIndex
* The language index at the offset in question. Since some
* <code>TokenMaker</code>s effectively have nested languages (such
* <code>TokenMaker</code>s effectively have nested languages
* (such
* as JavaScript in HTML), this parameter tells the
* <code>TokenMaker</code> what sub-language to look at.
* @return Whether curly braces denote code blocks.
@@ -303,9 +285,10 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public boolean getCurlyBracesDenoteCodeBlocks(int languageIndex) {
return tokenMaker.getCurlyBracesDenoteCodeBlocks(languageIndex);
}
/**
* Returns whether the current language is a markup language, such as HTML, XML
* Returns whether the current language is a markup language, such as HTML,
* XML
* or PHP.
*
* @return Whether the current language is a markup language.
@@ -313,44 +296,50 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public boolean getLanguageIsMarkup() {
return tokenMaker.isMarkupLanguage();
}
/**
* Returns the token type of the last token on the given line.
*
* @param line
* The line to inspect.
* @return The token type of the last token on the specified line. If the line
* @return The token type of the last token on the specified line. If the
* line
* is invalid, an exception is thrown.
*/
public int getLastTokenTypeOnLine(int line) {
return lastTokensOnLines.get(line);
}
/**
* Returns the text to place at the beginning and end of a line to "comment" it
* Returns the text to place at the beginning and end of a line to "comment"
* it
* in this programming language.
*
* @return The start and end strings to add to a line to "comment" it out. A
* <code>null</code> value for either means there is no string to add
* for that part. A value of <code>null</code> for the array means this
* <code>null</code> value for either means there is no string to
* add
* for that part. A value of <code>null</code> for the array means
* this
* language does not support commenting/uncommenting lines.
*/
public String[] getLineCommentStartAndEnd(int languageIndex) {
return tokenMaker.getLineCommentStartAndEnd(languageIndex);
}
/**
* Returns whether tokens of the specified type should have "mark occurrences"
* Returns whether tokens of the specified type should have "mark
* occurrences"
* enabled for the current programming language.
*
* @param type
* The token type.
* @return Whether tokens of this type should have "mark occurrences" enabled.
* @return Whether tokens of this type should have "mark occurrences"
* enabled.
*/
boolean getMarkOccurrencesOfTokenType(int type) {
return tokenMaker.getMarkOccurrencesOfTokenType(type);
}
/**
* Returns the occurrence marker for the current language.
*
@@ -359,7 +348,7 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
OccurrenceMarker getOccurrenceMarker() {
return tokenMaker.getOccurrenceMarker();
}
/**
* This method returns whether auto indentation should be done if Enter is
* pressed at the end of the specified line.
@@ -373,7 +362,7 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
t = t.getLastNonCommentNonWhitespaceToken();
return tokenMaker.getShouldIndentNextLineAfter(t);
}
/**
* Returns the syntax style being used.
*
@@ -383,11 +372,12 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public String getSyntaxStyle() {
return syntaxStyle;
}
/**
* Returns a token list for the specified segment of text representing the
* specified line number. This method is basically a wrapper for
* <code>tokenMaker.getTokenList</code> that takes into account the last token
* <code>tokenMaker.getTokenList</code> that takes into account the last
* token
* on the previous line to assure token accuracy.
*
* @param line
@@ -395,7 +385,6 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
* @return A token list representing the specified line.
*/
public final Token getTokenListForLine(int line) {
tokenRetrievalCount++;
if (line == lastLine && cachedTokenList != null) {
if (DEBUG_TOKEN_CACHING) {
@@ -405,11 +394,11 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
return cachedTokenList;
}
lastLine = line;
Element map = getDefaultRootElement();
Element elem = map.getElement(line);
int startOffset = elem.getStartOffset();
// int endOffset = (line==map.getElementCount()-1 ? elem.getEndOffset() - 1:
// int endOffset = (line==map.getElementCount()-1 ? elem.getEndOffset()
// - 1:
// elem.getEndOffset() - 1);
int endOffset = elem.getEndOffset() - 1; // Why always "-1"?
try {
@@ -419,13 +408,11 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
return null;
}
int initialTokenType = line == 0 ? Token.NULL : getLastTokenTypeOnLine(line - 1);
// return tokenMaker.getTokenList(s, initialTokenType, startOffset);
cachedTokenList = tokenMaker.getTokenList(s, initialTokenType, startOffset);
return cachedTokenList;
}
boolean insertBreakSpecialHandling(ActionEvent e) {
Action a = tokenMaker.getInsertBreakAction();
if (a != null) {
@@ -434,10 +421,11 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
}
return false;
}
/**
* Returns whether a character could be part of an "identifier" token in a
* specific language. This is used to identify such things as the bounds of the
* specific language. This is used to identify such things as the bounds of
* the
* "word" to select on double-clicking.
*
* @param languageIndex
@@ -449,10 +437,12 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public boolean isIdentifierChar(int languageIndex, char ch) {
return tokenMaker.isIdentifierChar(languageIndex, ch);
}
/**
* Returns an iterator over the paintable tokens in this document. Results are
* undefined if this document is modified while the iterator is being iterated
* Returns an iterator over the paintable tokens in this document. Results
* are
* undefined if this document is modified while the iterator is being
* iterated
* through, so this should only be used on the EDT.
* <p>
*
@@ -465,7 +455,7 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
public Iterator<Token> iterator() {
return new TokenIterator(this);
}
/**
* Deserializes a document.
*
@@ -475,35 +465,31 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
* @throws IOException
*/
private void readObject(ObjectInputStream in) throws ClassNotFoundException, IOException {
in.defaultReadObject();
// Install default TokenMakerFactory. To support custom TokenMakers,
// both JVM's should install default TokenMakerFactories that support
// the language they want to use beforehand.
setTokenMakerFactory(null);
// Handle other transient stuff
this.s = new Segment();
int lineCount = getDefaultRootElement().getElementCount();
lastTokensOnLines = new DynamicIntArray(lineCount);
setSyntaxStyle(syntaxStyle); // Actually install (transient) TokenMaker
}
/**
* Makes our private <code>Segment s</code> point to the text in our document
* referenced by the specified element. Note that <code>line</code> MUST be a
* Makes our private <code>Segment s</code> point to the text in our
* document
* referenced by the specified element. Note that <code>line</code> MUST be
* a
* valid line number in the document.
*
* @param line
* The line number you want to get.
*/
private void setSharedSegment(int line) {
Element map = getDefaultRootElement();
// int numLines = map.getElementCount();
Element element = map.getElement(line);
if (element == null) {
throw new InternalError("Invalid line number: " + line);
@@ -517,18 +503,19 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
} catch (BadLocationException ble) {
throw new InternalError("Text range not in document: " + startOffset + "-" + endOffset);
}
}
/**
* Sets the syntax style being used for syntax highlighting in this document.
* Sets the syntax style being used for syntax highlighting in this
* document.
* What styles are supported by a document is determined by its
* {@link TokenMakerFactory}. By default, all <code>RSyntaxDocument</code>s
* support all languages built into <code>RSyntaxTextArea</code>.
*
* @param styleKey
* The new style to use, such as
* {@link SyntaxConstants#SYNTAX_STYLE_JAVA}. If this style is not
* {@link SyntaxConstants#SYNTAX_STYLE_JAVA}. If this style is
* not
* known or supported by this document, then
* {@link SyntaxConstants#SYNTAX_STYLE_NONE} is used.
* @see #setSyntaxStyle(TokenMaker)
@@ -543,9 +530,10 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
updateSyntaxHighlightingInformation();
this.syntaxStyle = styleKey;
}
/**
* Sets the syntax style being used for syntax highlighting in this document.
* Sets the syntax style being used for syntax highlighting in this
* document.
* You should call this method if you've created a custom token maker for a
* language not normally supported by <code>RSyntaxTextArea</code>.
*
@@ -558,22 +546,26 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
updateSyntaxHighlightingInformation();
this.syntaxStyle = "text/unknown"; // TODO: Make me public?
}
/**
* Sets the token maker factory used by this document.
*
* @param tmf
* The <code>TokenMakerFactory</code> for this document. If this is
* The <code>TokenMakerFactory</code> for this document. If this
* is
* <code>null</code>, a default factory is used.
*/
public void setTokenMakerFactory(TokenMakerFactory tmf) {
tokenMakerFactory = tmf != null ? tmf : TokenMakerFactory.getDefaultInstance();
}
/**
* Loops through the last-tokens-on-lines array from a specified point onward,
* updating last-token values until they stop changing. This should be called
* when lines are updated/inserted/removed, as doing so may cause lines below to
* Loops through the last-tokens-on-lines array from a specified point
* onward,
* updating last-token values until they stop changing. This should be
* called
* when lines are updated/inserted/removed, as doing so may cause lines
* below to
* change color.
*
* @param line
@@ -581,38 +573,38 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
* @param numLines
* The number of lines in the document.
* @param previousTokenType
* The last-token value of the line just before <code>line</code>.
* The last-token value of the line just before
* <code>line</code>.
* @return The last line that needs repainting.
*/
private int updateLastTokensBelow(int line, int numLines, int previousTokenType) {
int firstLine = line;
// Loop through all lines past our starting point. Update even the last
// line's info, even though there aren't any lines after it that depend
// on it changing for them to be changed, as its state may be used
// elsewhere in the library.
int end = numLines;
// System.err.println("--- end==" + end + " (numLines==" + numLines + ")");
// System.err.println("--- end==" + end + " (numLines==" + numLines +
// ")");
while (line < end) {
setSharedSegment(line); // Sets s's text to that of line 'line' in the document.
setSharedSegment(line); // Sets s's text to that of line 'line' in
// the document.
int oldTokenType = lastTokensOnLines.get(line);
int newTokenType = tokenMaker.getLastTokenTypeOnLine(s, previousTokenType);
// System.err.println("---------------- line " + line + "; oldTokenType==" +
// oldTokenType + ", newTokenType==" + newTokenType + ", s=='" + s + "'");
// System.err.println("---------------- line " + line + ";
// oldTokenType==" +
// oldTokenType + ", newTokenType==" + newTokenType + ", s=='" + s +
// "'");
// If this line's end-token value didn't change, stop here. Note
// that we're saying this line needs repainting; this is because
// the beginning of this line did indeed change color, but the
// end didn't.
if (oldTokenType == newTokenType) {
// System.err.println("... ... ... repainting lines " + firstLine + "-" + line);
// System.err.println("... ... ... repainting lines " +
// firstLine + "-" + line);
fireChangedUpdate(new DefaultDocumentEvent(firstLine, line, DocumentEvent.EventType.CHANGE));
return line;
}
// If the line's end-token value did change, update it and
// keep going.
// NOTE: "setUnsafe" is okay here as the bounds checking was
@@ -620,24 +612,22 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
lastTokensOnLines.setUnsafe(line, newTokenType);
previousTokenType = newTokenType;
line++;
} // End of while (line<numLines).
// If any lines had their token types changed, fire a changed update
// for them. The view will repaint the area covered by the lines.
// FIXME: We currently cheat and send the line range that needs to be
// repainted as the "offset and length" of the change, since this is
// what the view needs. We really should send the actual offset and
// length.
// If any lines had their token types changed, fire a changed update
// for them. The view will repaint the area covered by the lines.
// FIXME: We currently cheat and send the line range that needs to
// be
// repainted as the "offset and length" of the change, since this is
// what the view needs. We really should send the actual offset and
// length.
if (line > firstLine) {
// System.err.println("... ... ... repainting lines " + firstLine + "-" + line);
// System.err.println("... ... ... repainting lines " + firstLine +
// "-" + line);
fireChangedUpdate(new DefaultDocumentEvent(firstLine, line, DocumentEvent.EventType.CHANGE));
}
return line;
}
/**
* Updates internal state information; e.g. the "last tokens on lines" data.
* After this, a changed update is fired to let listeners know that the
@@ -647,7 +637,6 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
* This is called internally whenever the syntax style changes.
*/
private void updateSyntaxHighlightingInformation() {
// Reinitialize the "last token on each line" array. Note that since
// the actual text in the document isn't changing, the number of lines
// is the same.
@@ -659,14 +648,10 @@ public class RSyntaxDocument extends RDocument implements Iterable<Token>, Synta
lastTokenType = tokenMaker.getLastTokenTypeOnLine(s, lastTokenType);
lastTokensOnLines.set(i, lastTokenType);
}
// Clear our token cache to force re-painting
lastLine = -1;
cachedTokenList = null;
// Let everybody know that syntax styles have (probably) changed.
fireChangedUpdate(new DefaultDocumentEvent(0, numLines - 1, DocumentEvent.EventType.CHANGE));
}
}
}