Sandbox

18th October 2007 at 06:49:21 pm

This is the sandbox where I play with WordPress. Fun.

I code in PHP for my job, but don’t really love PHP.

Speaking of, here’s the tests for a plugin I wrote/am writing. It highlights code. Very fun indeed.
omg
wtf
lol

<?php
 
    $highlighter =& Text_Highlighter::factory($lang);
    if($highlighter instanceof Text_Highlighter)
    { // valid $lang
        $highlighter->setRenderer($code_post_renderer);
        $text = $highlighter->highlight($text);
    }
    else
    {
        $pre = '<pre class="failedhighlight">';
        $post = '</pre>';
    }
    
    $text = tianon_anti_wptexturize($text);
    // save us from crappy-wordpress features!
 
?>

more PHP: 

<?php
 
ini_set('some.setting', 'On'); ?> this is a <code>test</code> <?php 
 
?>

Some MySQL!

SELECT * FROM table WHERE date < UNIX_TIMESTAMP() - 10 ORDER BY RAND();
UPDATE table SET date = UNIX_TIMESTAMP() WHERE id = '1';
DELETE FROM table WHERE id = '2';
DROP DATABASE crufty_one;
SELECT *
    FROM table
    WHERE
        date < UNIX_TIMESTAMP()
            AND
        id > '3'
    ORDER BY name;

More PHP…. 

<?php
 
$handle = mysql_query('SELECT * FROM someplace', $conn); /* snag stuff */
 
?>

How about’s some JAVA? 

public class IRCDocument extends DefaultStyledDocument
{
    Color[] colors = {
            new Color( 255, 255, 255, 0 ),
            Color.BLACK,
            Color.BLUE.darker(),
            Color.GREEN,
            Color.RED,
            Color.RED.darker(),
            Color.MAGENTA.darker(),
            Color.YELLOW.darker(),
            Color.YELLOW,
            Color.GREEN.brighter(),
            Color.CYAN.darker(),
            Color.CYAN,
            Color.BLUE,
            Color.MAGENTA,
            Color.DARK_GRAY,
            Color.LIGHT_GRAY,
    };
    private Element rootElement;
    private MutableAttributeSet style;
 
// ...  snip!

And now for a really long snippet.

package learning;
/* 
 * Syntax Highlighting Test using a JTextPane
 *
 * By: Frank Hale <[email protected]>
 * Date: 12 November 2006
 *  
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * A full copy of this license is at: http://www.gnu.org/licenses/gpl.txt
 *  
 */
 
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.plaf.ComponentUI;
import java.awt.*;
import java.util.*;
import java.util.regex.*;
 
public class Highlighter
{
    class HighlightDocument extends DefaultStyledDocument
    {
        private Element rootElement;
        private HashMap<String, Color> keywords;
        private MutableAttributeSet style;
        
        private Color commentColor = Color.red;
        private Color quoteColor = Color.yellow;
        
        private Pattern singleLineCommentDelimter = Pattern.compile( "//" );
        private Pattern multiLineCommentDelimiterStart = Pattern.compile( "/\\*" );
        private Pattern multiLineCommentDelimiterEnd = Pattern.compile( "\\*/" );
        private Pattern quoteDelimiter = Pattern.compile( "\"" );
        
        public HighlightDocument()
        {
            putProperty( DefaultEditorKit.EndOfLineStringProperty, "\n" );
            
            rootElement = getDefaultRootElement();
            
            keywords = new HashMap<String, Color>();
            keywords.put( "abstract", Color.blue );
            keywords.put( "interface", Color.blue );
            keywords.put( "class", Color.blue );
            keywords.put( "extends", Color.blue );
            keywords.put( "implements", Color.blue );
            
            keywords.put( "package", new Color( 0, 200, 0 ) );
            keywords.put( "import", new Color( 0, 200, 0 ) );
            keywords.put( "private", new Color( 0, 200, 0 ) );
            keywords.put( "protected", new Color( 0, 200, 0 ) );
            keywords.put( "public", new Color( 0, 200, 0 ) );
            
            keywords.put( "void", Color.orange );
            keywords.put( "boolean", Color.orange );
            keywords.put( "char", Color.orange );
            keywords.put( "byte", Color.orange );
            keywords.put( "float", Color.orange );
            keywords.put( "double", Color.orange );
            keywords.put( "long", Color.orange );
            keywords.put( "short", Color.orange );
            keywords.put( "int", Color.orange );
            
            keywords.put( "true", Color.red );
            keywords.put( "false", Color.red );
            keywords.put( "const", Color.red );
            keywords.put( "null", Color.red );
            
            keywords.put( "break", Color.blue );
            keywords.put( "case", Color.blue );
            keywords.put( "catch", Color.blue );
            keywords.put( "operator", Color.blue );
            keywords.put( "continue", Color.blue );
            keywords.put( "default", Color.blue );
            keywords.put( "do", Color.blue );
            keywords.put( "else", Color.blue );
            keywords.put( "final", Color.blue );
            keywords.put( "finally", Color.blue );
            keywords.put( "for", Color.blue );
            keywords.put( "if", Color.blue );
            keywords.put( "instanceof", Color.blue );
            keywords.put( "native", Color.blue );
            keywords.put( "new", Color.blue );
            keywords.put( "return", Color.blue );
            keywords.put( "static", Color.blue );
            keywords.put( "super", Color.blue );
            keywords.put( "switch", Color.blue );
            keywords.put( "synchronized", Color.blue );
            keywords.put( "this", Color.blue );
            keywords.put( "throw", Color.blue );
            keywords.put( "throws", Color.blue );
            keywords.put( "transient", Color.blue );
            keywords.put( "try", Color.blue );
            keywords.put( "volatile", Color.blue );
            keywords.put( "while", Color.blue );
            
            style = new SimpleAttributeSet();
        }
        
        public void insertString( int offset, String str, AttributeSet attr ) throws BadLocationException
        {
            super.insertString( offset, str, attr );
            processChangedLines( offset, str.length() );
        }
        
        public void remove( int offset, int length ) throws BadLocationException
        {
            super.remove( offset, length );
            processChangedLines( offset, length );
        }
        
        public void processChangedLines( int offset, int length ) throws BadLocationException
        {
            String text = getText( 0, getLength() );
            highlightString( Color.black, 0, getLength(), true, false );
            
            Set<String> keyw = keywords.keySet();
            
            for ( String keyword: keyw )
            {
                Color col = keywords.get( keyword );
                
                Pattern p = Pattern.compile( "\\b" + keyword + "\\b" );
                Matcher m = p.matcher( text );
                
                while ( m.find() )
                {
                    highlightString( col, m.start(), keyword.length(), true, true );
                }
            }
            
            Matcher mlcStart = multiLineCommentDelimiterStart.matcher( text );
            Matcher mlcEnd = multiLineCommentDelimiterEnd.matcher( text );
            
            while ( mlcStart.find() )
            {
                if ( mlcEnd.find( mlcStart.end() ) )
                    highlightString( commentColor, mlcStart.start(), ( mlcEnd.end() - mlcStart.start() ), true, true );
                else
                    highlightString( commentColor, mlcStart.start(), getLength(), true, true );
            }
            
            //Matcher quote = quoteDelimiter.matcher(text);
            
            //while(quote.find()) {
            //    int start=quote.start();
            
            //    if(quote.find( start ))
            //        highlightString(quoteColor, start, (quote.end()-start), true, true);
            //}
            
            // Single Line Comment Highligher (below)            
            
            Matcher slc = singleLineCommentDelimter.matcher( text );
            
            while ( slc.find() )
            {
                int line = rootElement.getElementIndex( slc.start() );
                int endOffset = rootElement.getElement( line ).getEndOffset() - 1;
                
                highlightString( commentColor, slc.start(), ( endOffset - slc.start() ), true, true );
            }
        }
        
        public void highlightString( Color col, int begin, int length, boolean flag, boolean bold )
        {
            StyleConstants.setForeground( style, col );
            StyleConstants.setBold( style, bold );
            
            setCharacterAttributes( begin, length, style, flag );
        }
        
        public String getLineString( String content, int line )
        {
            Element lineElement = rootElement.getElement( line );
            return content.substring( lineElement.getStartOffset(), lineElement.getEndOffset() - 1 );
        }
    }
    
    class highlightKit extends StyledEditorKit
    {
        public Document createDefaultDocument()
        {
            return new HighlightDocument();
        }
    }
    
    // Because Swing's JTextPane is retarded by default and doesn't allow you to just flip a switch and turn off the FUCKING line-wrapping
    //
    // This overridden method was coded by somebody much smarter than I, somebody probably with an EGO the size of SUN MICROSYSTEMS.
    //
    // At SUN our motto is "Over-engineer everything so that nobody understands it..."
    class NonWrappingTextPane extends JTextPane
    {
        // The method below is coutesy of Core Swing Advanced Programming by Kim Topley
        //
        // Override getScrollableTracksViewportWidth
        // to preserve the full width of the text
        public boolean getScrollableTracksViewportWidth()
        {
            Component parent = getParent();
            ComponentUI ui = getUI();
            
            return parent != null
                    ? ( ui.getPreferredSize( this ).width <= parent.getSize().width )
                    : true;
        }
    }
    
    public Highlighter( String args[] )
    {
        JFrame frame = new JFrame( "Syntax Highlighting Test" );
        NonWrappingTextPane textPane = new NonWrappingTextPane();
        textPane.setFont( new Font( "Monospaced", Font.PLAIN, 20 ) );
        JScrollPane scroll = new JScrollPane( textPane );
        textPane.setEditorKit( new highlightKit() );
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        frame.getContentPane().add( scroll );
        frame.setSize( 640, 480 );
        frame.setVisible( true );
    }
    
    public static void main( String args[] )
    {
        new Highlighter( args );
    }
}

Posted by Adm.Wiggin

Author Bio: Admiral Wiggin

See http://blog.andrewlives.com/about

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1 comment :) — write new comment

  • 1) Tianon commented 2nd April 2008 at 01:42:44 am:

    Man, who picked out those colors? They’re awesome! Hahahaha. :)

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