1 files changed, 144 insertions, 0 deletions
diff --git a/buildscripts/phing/classes/phing/filters/TabToSpaces.php b/buildscripts/phing/classes/phing/filters/TabToSpaces.php
new file mode 100644
index 00000000..7293d3b5
--- /dev/null
+++ b/buildscripts/phing/classes/phing/filters/TabToSpaces.php
@@ -0,0 +1,144 @@
+<?php
+
+/*
+ *  $Id: TabToSpaces.php,v 1.9 2004/03/15 14:45:06 hlellelid Exp $  
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information please see
+ * <http://phing.info>.
+*/
+
+require_once 'phing/filters/BaseParamFilterReader.php';
+require_once 'phing/filters/ChainableReader.php';
+
+/**
+ * Converts tabs to spaces.
+ *
+ * Example:
+ *
+ * <pre><tabtospaces tablength="8"></pre>
+ *
+ * Or:
+ *
+ * <pre><filterreader classname="phing.filters.TabsToSpaces">
+ *   <param name="tablength" value="8">
+ * </filterreader></pre>
+ *
+ * @author    Yannick Lecaillez <yl@seasonfive.com>
+ * @author    Hans Lellelid <hans@xmpl.org>
+ * @version   $Revision: 1.9 $
+ * @see       BaseParamFilterReader
+ * @package   phing.filters
+ */
+class TabToSpaces extends BaseParamFilterReader implements ChainableReader {
+
+    /**
+     * The default tab length. 
+     * @var int
+     */
+    const DEFAULT_TAB_LENGTH = 8;
+    
+    /**
+     * Parameter name for the length of a tab.
+     * @var string
+     */
+    const TAB_LENGTH_KEY = "tablength";
+    
+    /**
+     * Tab length in this filter.
+     * @var int
+     */  
+    private $tabLength = 8; //self::DEFAULT_TAB_LENGTH;    
+
+    /**
+     * Returns stream after converting tabs to the specified number of spaces.
+     * 
+     * @return the resulting stream, or -1
+     *         if the end of the resulting stream has been reached
+     * 
+     * @exception IOException if the underlying stream throws an IOException
+     *            during reading     
+     */
+    function read($len = null) {
+    
+        if ( !$this->getInitialized() ) {
+            $this->_initialize();
+            $this->setInitialized(true);
+        }
+
+          $buffer = $this->in->read($len);
+        
+        if($buffer === -1) {
+            return -1;
+        }
+        
+        $buffer = str_replace("\t", str_repeat(' ', $this->tabLength), $buffer);
+        
+        return $buffer;        
+    }
+    
+    /**
+     * Sets the tab length.
+     * 
+     * @param int $tabLength The number of spaces to be used when converting a tab.
+     */
+    function setTablength($tabLength) {
+        $this->tabLength = (int) $tabLength;
+    }
+
+    /**
+     * Returns the tab length.
+     * 
+     * @return int The number of spaces used when converting a tab
+     */
+    function getTablength() {
+        return $this->tabLength;
+    }
+
+    /**
+     * Creates a new TabsToSpaces using the passed in
+     * Reader for instantiation.
+     * 
+     * @param Reader $reader A Reader object providing the underlying stream.
+     *               Must not be <code>null</code>.
+     * 
+     * @return Reader A new filter based on this configuration, but filtering
+     *         the specified reader
+     */
+    function chain(Reader $reader) {
+        $newFilter = new TabToSpaces($reader);
+        $newFilter->setTablength($this->getTablength());
+        $newFilter->setInitialized(true);
+        $newFilter->setProject($this->getProject());        
+        return $newFilter;
+    }
+
+    /**
+     * Parses the parameters to set the tab length.
+     */
+    private function _initialize() {
+        $params = $this->getParameters();
+        if ( $params !== null ) {
+            for($i = 0 ; $i<count($params) ; $i++) {
+                if (self::TAB_LENGTH_KEY === $params[$i]->getName()) {
+                    $this->tabLength = $params[$i]->getValue();
+                    break;
+                }
+            }
+        }
+    }
+}
+
+?>