template.php

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<?php
/***************************************************************************
 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 ***************************************************************************/

class Template
{
    var $strPath;                   
    var $strTmpl;                   
    var $strHtml;                   
    var $aArea         = array();   
    var $aReplacements = array();   
    var $strAreaPre;
    var $strAreaStart;
    var $strAreaEnd;

    function Template ( $strPath )
    {
        // replace windows backslash with forward slash
        $strPath = str_replace('\\', '/', $strPath);

        // remove '/' from string end
        $strPath = preg_replace("-/*$-", '', $strPath);

        // add '/'
        $strPath .= '/';
        if ( !is_dir ( $strPath ) )
        {
            // template dir does not exist -> set default dir
            $strPath = './templates/default/';
        }
        $this->strPath = $strPath;

        $this->strAreaPre   = '<!--';
        $this->strAreaStart = 'Start-->';
        $this->strAreaEnd   = 'End-->';
    }

    function getPath()
    {
        return $this->strPath;
    }

    function setTemplate($strFile)
    {
        // check default templates, if an other template set is used
        $strPath = ( !file_exists( $this->strPath.$strFile ) ) ? './templates/default/' : $this->strPath;

        if( ( $this->strTmpl = @file_get_contents($strPath.$strFile, true) ) === false )
            die("<b>Das Template: $strFile <br> Im Skript: $_SERVER[PHP_SELF] <br> wurde nicht gefunden!</b>");
        $this->strHtml = $this->strTmpl;
        return true;
    }

    function get_area( $strAreaName )
    {
        if ( !isset ( $this->aArea[$strAreaName] ) )
        {
            $this->split_area ( $strAreaName );
            // check if area exists now
            if ( !isset ( $this->aArea[$strAreaName] ) )
            {
                die ( 'Template Fehler: '.$strAreaName.' wurde nicht gefunden.' );
            }
        }

        // copy area contents
        $strArea = $this->aArea[$strAreaName];

        $aKeys = array_keys($this->aReplacements);
        for ($i = 0; $i < count($aKeys); $i++)
        {
            $strArea = str_replace( '%_'.$aKeys[$i].'_%', $this->aReplacements[$aKeys[$i]], $strArea );
        }

        return rtrim( preg_replace( '/%_(\w*)_%/Ui', '', $this->myrecode( $strArea ) ) );
    }

    function get_html()
    {
        return $this->strHtml;
    }

    function get_tmpl()
    {
        return $this->strTmpl;
    }

    function split_area ( $strAreaName, $booDelete=false )
    {
        $intNameLen   = strlen ( $strAreaName );
        $intEndLen    = strlen ( $this->strAreaPre ) + strlen ( $this->strAreaEnd );
        $intPosStart  = strpos ( $this->strHtml, $this->strAreaPre . $strAreaName . $this->strAreaStart );
        $intPosEnd    = strpos ( $this->strHtml, $this->strAreaPre . $strAreaName . $this->strAreaEnd ) + $intNameLen + $intEndLen;

        if ( $intPosStart === false || $intPosEnd === false )
        {
            // area cannot be found
            return false;
        }

        $intAreaStart = $intPosStart + $intNameLen + strlen ( $this->strAreaPre ) + strlen ( $this->strAreaStart );
        $intAreaLen   = $intPosEnd - $intAreaStart - $intNameLen - $intEndLen;

        $strAreaVar   = (!$booDelete) ? '%_' . strtoupper ( $strAreaName ) . '_%' : '';

        $this->aArea[$strAreaName] = substr ( $this->strHtml, $intAreaStart, $intAreaLen );
        $this->strHtml = substr ( $this->strHtml, 0, $intPosStart ) . $strAreaName . substr ( $this->strHtml, $intPosEnd );

        return true;
    }

    function addReplacements( $aNewReplacements )
    {
        $this->aReplacements = array_merge ( $this->aReplacements, $aNewReplacements );
    }

    function getReplacements()
    {
        return array_keys ( $this->aReplacements );
    }

    function myrecode( $strString )
    {
       $strString = str_replace( "Ä", "&Auml;", $strString );
       $strString = str_replace( "Ö", "&Ouml;", $strString );
       $strString = str_replace( "Ü", "&Uuml;", $strString );
       $strString = str_replace( "ä", "&auml;", $strString );
       $strString = str_replace( "ö", "&ouml;", $strString );
       $strString = str_replace( "ü", "&uuml;", $strString );
       $strString = str_replace( "ß", "&szlig;", $strString );

       return( $strString );
    }

}

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