From: musk <musk>
Date: Tue, 6 May 2003 13:03:45 +0000 (+0000)
Subject: Partitionscanner Framework
X-Git-Url: http://secure.phpeclipse.com
Partitionscanner Framework
---
diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPPartition.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPPartition.java
new file mode 100644
index 0000000..522df96
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PHPPartition.java
@@ -0,0 +1,80 @@
+/*
+ * Created on 28.04.2003
+ *
+ */
+package net.sourceforge.phpeclipse.phpeditor.php;
+
+import org.eclipse.jface.text.*;
+
+/**
+ * @author slanger
+ * @version $Revision: 1.1 $
+ */
+public class PHPPartition extends Partition
+{
+ private boolean fShortTagsEnabled = true;
+
+ /**
+ * @param document
+ * @param delim
+ * @param contentType
+ * @param parentPartition
+ */
+ public PHPPartition(IDocument document, String parentPartition)
+ {
+ super(
+ document,
+ new char[] { '<', '>' },
+ IPHPPartitionScannerConstants.PHP,
+ parentPartition);
+ }
+
+
+
+ /* (non-Javadoc)
+ * @see net.sourceforge.phpeclipse.phpeditor.php.Partition#allowedPartition(java.lang.String)
+ */
+ protected boolean allowedPartition(String type)
+ {
+ if(type.equals(IPHPPartitionScannerConstants.PHP_MULTILINE_COMMENT))
+ return true;
+
+ return false;
+ }
+
+ /* (non-Javadoc)
+ * @see net.sourceforge.phpeclipse.phpeditor.php.Partition#scan()
+ */
+ protected boolean scan()
+ {
+ int ch;
+ if(fShortTagsEnabled && checkPattern("<?", true))
+ {
+ scanToEnd();
+ }
+ else if(checkPattern("<?php", false))
+ {
+ scanToEnd();
+ }
+ else
+ return false;
+
+ return true;
+ }
+
+ private void scanToEnd()
+ {
+ if(isEnd())
+ return;
+
+ while(!checkPattern("?>", true))
+ {
+ int offset = getOffset();
+ if(checkPattern("/*", true))
+ {
+ unread(2);
+ return;
+ }
+ }
+ }
+}
diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/Partition.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/Partition.java
new file mode 100644
index 0000000..bf83815
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/Partition.java
@@ -0,0 +1,233 @@
+/*
+ * Created on 28.04.2003
+ *
+ */
+package net.sourceforge.phpeclipse.phpeditor.php;
+
+import org.eclipse.jface.text.*;
+import org.eclipse.jface.text.rules.*;
+
+
+/**
+ * Defines a partition in a phpdocument. This class keeps tracks of
+ * partitions contained within other partitions.
+ *
+ * @author Stefan Langer
+ * @version $Revision: 1.1 $
+ */
+public abstract class Partition
+{
+ private IDocument fDocument;
+ private IToken fContentToken;
+ private String fParentPartition;
+ private char[] fTextBuffer;
+ private int fOffset = 0;
+ private char entry;
+ private char exit;
+ private boolean inDoubleString = false;
+ private boolean inSingleString = false;
+
+ public Partition(IDocument document, char[] delim, String contentType, String parentPartition)
+ {
+ fDocument = document;
+ fContentToken = new Token(contentType);
+ fParentPartition = parentPartition;
+ entry = delim[0];
+ exit = delim[1];
+ }
+
+ public Partition(IDocument document, char[] delim, String contentType)
+ {
+ this(document, delim, contentType, IPHPPartitionScannerConstants.HTML);
+ }
+
+ /**
+ * Checks wether the specified type is allowed within this
+ * partition type.
+ *
+ * @param type The type of the partition to check.
+ *
+ * @return <code>true</code> if the partition is allowed within this
+ * partition otherwise <code>false</code>.
+ */
+ abstract protected boolean allowedPartition(String type);
+
+ abstract protected boolean scan();
+
+ protected boolean isEnd()
+ {
+ return fOffset >= fTextBuffer.length;
+ }
+
+ protected int read()
+ {
+ if(fOffset > fTextBuffer.length)
+ return ICharacterScanner.EOF;
+
+ char ret = fTextBuffer[fOffset++];
+ switch(ret)
+ {
+ case '\'':
+ if(!inDoubleString)
+ inSingleString = !inSingleString;
+ break;
+ case '"':
+ if(!inSingleString)
+ inDoubleString = !inDoubleString;
+ break;
+ }
+ return ret;
+ }
+
+ protected void unread(int i)
+ {
+ for (int j = 0; j < i && fOffset > 0; j++)
+ {
+ char read = fTextBuffer[--fOffset];
+
+ switch (read)
+ {
+ case '\'' :
+ if (!inDoubleString)
+ inSingleString = !inSingleString;
+ break;
+ case '"' :
+ if (!inSingleString)
+ inDoubleString = !inDoubleString;
+ break;
+ }
+ } // END FOR
+ }
+
+ public boolean scanRange(int offset, int length)
+ throws BadLocationException
+ { // short circuit scanning if entry is not correct
+ if (fDocument.getChar(offset) != entry)
+ return false;
+ // read the full range into the internal buffer
+ fOffset = 0;
+ inSingleString = false;
+ inDoubleString = false;
+ fTextBuffer = fDocument.get(offset, length).toCharArray();
+ return scan();
+ }
+
+ protected boolean checkPattern(String pattern, boolean ignoreCase)
+ {
+ char[] checkPattern = pattern.toCharArray();
+ int offset = fOffset;
+ for(int i=0; i<checkPattern.length; i++)
+ {
+ if(isEnd() || !letterEquals(read(), checkPattern[i], ignoreCase))
+ {
+ fOffset = offset;
+ return false;
+ }
+ }
+ return true;
+ }
+
+ private boolean letterEquals(int test, char letter, boolean ignoreCase)
+ {
+ if (test == letter)
+ return true;
+ else if (
+ ignoreCase
+ && Character.isLowerCase(letter)
+ && test == Character.toUpperCase(letter))
+ return true;
+ else if (
+ ignoreCase
+ && Character.isUpperCase(letter)
+ && test == Character.toLowerCase(letter))
+ return true;
+
+ return false;
+ }
+
+
+
+ protected boolean inString()
+ {
+ return inDoubleString || inSingleString;
+ }
+
+
+
+
+ public IToken getToken()
+ {
+ return fContentToken;
+ }
+
+ public int getLength()
+ {
+ return fOffset;
+ }
+
+ /**
+ * @return
+ */
+ public IDocument getDocument()
+ {
+ return fDocument;
+ }
+
+ /**
+ * @return
+ */
+ public String getParentPartition()
+ {
+ return fParentPartition;
+ }
+
+ /**
+ * @param document
+ */
+ public void setDocument(IDocument document)
+ {
+ fDocument = document;
+ }
+
+ /**
+ * @param string
+ */
+ public void setParentPartition(String string)
+ {
+ fParentPartition = string;
+ }
+
+
+ /**
+ * @return
+ */
+ public char getEntry()
+ {
+ return entry;
+ }
+
+ /**
+ * @return
+ */
+ public char getExit()
+ {
+ return exit;
+ }
+
+ /**
+ * @return
+ */
+ protected int getOffset()
+ {
+ return fOffset;
+ }
+
+ /**
+ * @param i
+ */
+ protected void setOffset(int i)
+ {
+ fOffset = i;
+ }
+
+}
diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PartitionStack.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PartitionStack.java
new file mode 100644
index 0000000..380b4cf
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/php/PartitionStack.java
@@ -0,0 +1,67 @@
+/*
+ * Created on 28.04.2003
+ *
+ */
+package net.sourceforge.phpeclipse.phpeditor.php;
+
+import java.util.*;
+
+import org.eclipse.jface.text.*;
+
+/**
+ * A stack for keeping track of the contenttypes for partitions that
+ * contain other partitions.
+ *
+ * @author Stefan Langer
+ * @version $Revision: 1.1 $
+ */
+public class PartitionStack
+{
+ private ArrayList fPartitionStack = new ArrayList(5);
+ private int fStackTop = -1;
+
+ /**
+ * Pushes the specified contenttype onto the partitionstack.
+ * This will keep track of the last partitions read.
+ * @param contentType The contenttype to push onto the stack.
+ */
+ public void pushStack(String contentType)
+ {
+ if(fStackTop < fPartitionStack.size())
+ {
+ fPartitionStack.add(++fStackTop, contentType);
+ }
+ }
+ /**
+ * Returns the contentype of the last partition on the partition stack.
+ * If no partition is currently on the stack this function simply returns
+ * the HTML contenttype as default.
+ * @return The contenttype of the last partition on stack.
+ */
+ public String popStack()
+ {
+ if(fStackTop >= 0)
+ {
+ return (String)fPartitionStack.get(fStackTop--);
+ }
+
+ return IPHPPartitionScannerConstants.HTML;
+ }
+
+ public boolean isEmpty()
+ {
+ return (fStackTop < 0);
+ }
+
+ /**
+ * Initializes this stack from the specified document for the
+ * specified offset.
+ * @param offset The offset to initialize from
+ * @param fDocument The document to initialize from
+ */
+ public void initializeStack(int offset, IDocument fDocument)
+ {
+
+ }
+
+}