groovy.ui.text
Class StructuredSyntaxDocumentFilter

java.lang.Object
  javax.swing.text.DocumentFilter
      groovy.ui.text.StructuredSyntaxDocumentFilter

Direct Known Subclasses:

GroovyFilter

public class StructuredSyntaxDocumentFilter
extends javax.swing.text.DocumentFilter

Author:

Evan "Hippy" Slatis

Nested Class Summary

class	StructuredSyntaxDocumentFilter.LexerNode
private static class	StructuredSyntaxDocumentFilter.MLComparator
protected class	StructuredSyntaxDocumentFilter.MultiLineRun

Nested classes/interfaces inherited from class javax.swing.text.DocumentFilter

javax.swing.text.DocumentFilter.FilterBypass

Field Summary

private java.nio.CharBuffer	buffer
protected StructuredSyntaxDocumentFilter.LexerNode	lexer The root of the lexical parsing tree.
private static StructuredSyntaxDocumentFilter.MLComparator	ML_COMPARATOR
protected java.util.TreeSet	mlTextRunSet The position tree of multi-line comments.
private javax.swing.text.Segment	segment
protected javax.swing.text.DefaultStyledDocument	styledDocument
static java.lang.String	TAB_REPLACEMENT

Constructor Summary

StructuredSyntaxDocumentFilter(javax.swing.text.DefaultStyledDocument document)
Creates a new instance of StructuredSyntaxDocumentFilter

Method Summary

private int	calcBeginParse(int offset)
private int	calcEndParse(int offset)
private static void	checkRegexp(java.lang.String regexp)
StructuredSyntaxDocumentFilter.LexerNode	createLexerNode() Create a new LexerNode for adding to root.
private StructuredSyntaxDocumentFilter.MultiLineRun	getMultiLineRun(int offset)
StructuredSyntaxDocumentFilter.LexerNode	getRootNode() Get the root node for lexing the document.
void	insertString(javax.swing.text.DocumentFilter.FilterBypass fb, int offset, java.lang.String text, javax.swing.text.AttributeSet attrs) Insert a string into the document, and then parse it if the parser has been set.
protected void	parseDocument(int offset, int length) Parse the Document to update the character styles given an initial start position.
void	remove(javax.swing.text.DocumentFilter.FilterBypass fb, int offset, int length) Remove a string from the document, and then parse it if the parser has been set.
void	replace(javax.swing.text.DocumentFilter.FilterBypass fb, int offset, int length, java.lang.String text, javax.swing.text.AttributeSet attrs) Replace a string in the document, and then parse it if the parser has been set.
private java.lang.String	replaceMetaCharacters(java.lang.String string)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TAB_REPLACEMENT

public static final java.lang.String TAB_REPLACEMENT

See Also:

Constant Field Values

ML_COMPARATOR

private static final StructuredSyntaxDocumentFilter.MLComparator ML_COMPARATOR

lexer

protected StructuredSyntaxDocumentFilter.LexerNode lexer

The root of the lexical parsing tree.

styledDocument

protected javax.swing.text.DefaultStyledDocument styledDocument

segment

private javax.swing.text.Segment segment

buffer

private java.nio.CharBuffer buffer

mlTextRunSet

protected java.util.TreeSet mlTextRunSet

The position tree of multi-line comments.

Constructor Detail

StructuredSyntaxDocumentFilter

public StructuredSyntaxDocumentFilter(javax.swing.text.DefaultStyledDocument document)

Creates a new instance of StructuredSyntaxDocumentFilter

Parameters:

document - the styled document to parse

Method Detail

checkRegexp

private static void checkRegexp(java.lang.String regexp)

calcBeginParse

private int calcBeginParse(int offset)

calcEndParse

private int calcEndParse(int offset)

createLexerNode

public StructuredSyntaxDocumentFilter.LexerNode createLexerNode()

Create a new LexerNode for adding to root.

Returns:

a new LexerNode

getMultiLineRun

private StructuredSyntaxDocumentFilter.MultiLineRun getMultiLineRun(int offset)

getRootNode

public StructuredSyntaxDocumentFilter.LexerNode getRootNode()

Get the root node for lexing the document. Children can be added such that matching patterns can be further parsed if required.

Returns:

the root lexing node.

insertString

public void insertString(javax.swing.text.DocumentFilter.FilterBypass fb,
                         int offset,
                         java.lang.String text,
                         javax.swing.text.AttributeSet attrs)
                  throws javax.swing.text.BadLocationException

Insert a string into the document, and then parse it if the parser has been set.

Overrides:

insertString in class javax.swing.text.DocumentFilter

Parameters:

fb -

offset -

text -

attrs -

Throws:

javax.swing.text.BadLocationException

parseDocument

protected void parseDocument(int offset,
                             int length)
                      throws javax.swing.text.BadLocationException

Parse the Document to update the character styles given an initial start position. Called by the filter after it has updated the text.

Parameters:

offset -

length -

Throws:

javax.swing.text.BadLocationException

remove

public void remove(javax.swing.text.DocumentFilter.FilterBypass fb,
                   int offset,
                   int length)
            throws javax.swing.text.BadLocationException

Remove a string from the document, and then parse it if the parser has been set.

Overrides:

remove in class javax.swing.text.DocumentFilter

Parameters:

fb -

offset -

length -

Throws:

javax.swing.text.BadLocationException

replace

public void replace(javax.swing.text.DocumentFilter.FilterBypass fb,
                    int offset,
                    int length,
                    java.lang.String text,
                    javax.swing.text.AttributeSet attrs)
             throws javax.swing.text.BadLocationException

Replace a string in the document, and then parse it if the parser has been set.

Overrides:

replace in class javax.swing.text.DocumentFilter

Parameters:

fb -

offset -

length -

text -

attrs -

Throws:

javax.swing.text.BadLocationException

replaceMetaCharacters

private java.lang.String replaceMetaCharacters(java.lang.String string)