alice.util.jedit

Class SyntaxUtilities

java.lang.Object

alice.util.jedit.SyntaxUtilities

public class SyntaxUtilities
extends Object

Class with several utility functions used by jEdit's syntax colorizing subsystem.

Author:

Slava Pestov

Method Summary

Methods

Modifier and Type	Method and Description
static SyntaxStyle[]	getDefaultSyntaxStyles() Returns the default style table.
static int	paintSyntaxLine(Segment line, Token tokens, SyntaxStyle[] styles, TabExpander expander, Graphics gfx, int x, int y) Paints the specified line onto the graphics context.
static boolean	regionMatches(boolean ignoreCase, Segment text, int offset, char[] match) Checks if a subregion of a Segment is equal to a character array.
static boolean	regionMatches(boolean ignoreCase, Segment text, int offset, String match) Checks if a subregion of a Segment is equal to a string.

Methods inherited from class java.lang.Object

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

Method Detail

regionMatches

public static boolean regionMatches(boolean ignoreCase,
                    Segment text,
                    int offset,
                    String match)

Checks if a subregion of a Segment is equal to a string.

Parameters:

ignoreCase - True if case should be ignored, false otherwise

text - The segment

offset - The offset into the segment

match - The string to match

regionMatches

public static boolean regionMatches(boolean ignoreCase,
                    Segment text,
                    int offset,
                    char[] match)

Checks if a subregion of a Segment is equal to a character array.

Parameters:

ignoreCase - True if case should be ignored, false otherwise

text - The segment

offset - The offset into the segment

match - The character array to match

getDefaultSyntaxStyles

public static SyntaxStyle[] getDefaultSyntaxStyles()

Returns the default style table. This can be passed to the setStyles() method of SyntaxDocument to use the default syntax styles.

paintSyntaxLine

public static int paintSyntaxLine(Segment line,
                  Token tokens,
                  SyntaxStyle[] styles,
                  TabExpander expander,
                  Graphics gfx,
                  int x,
                  int y)

Paints the specified line onto the graphics context. Note that this method munges the offset and count values of the segment.

Parameters:

line - The line segment

tokens - The token list for the line

styles - The syntax style list

expander - The tab expander used to determine tab stops. May be null

gfx - The graphics context

x - The x co-ordinate

y - The y co-ordinate

Returns:

The x co-ordinate, plus the width of the painted string