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utils.inc

<?php

// WebSVN - Subversion repository viewing via the web using PHP
// Copyright (C) 2004 Tim Armes
//
// 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
//
// --
//
// utils.inc
//
// General utility commands

// createDirLinks
//
// Create a list of links to the current path that'll be available from the template

function createDirLinks($rep, $path, $rev, $showchanged)
{
   global $vars, $config;
   
   $subs = explode("/", $path);
   $sofar = "";
   $count = count($subs);
   $vars["curdirlinks"] = "";
   
   // The number of links depends on the last item.  It's empty if
   // we're looing at a directory, and full if it's a file
   if (empty($subs[$count - 1]))
   {
      $limit = $count - 2;
      $dir = true;
   }
   else
   {
      $limit = $count - 1;
      $dir = false;
   }
      
   for ($n = 0; $n < $limit; $n++)
   {
      $sofar .= $subs[$n]."/";
      $sofarurl = $config->getURL($rep, $sofar, "dir");
      $vars["curdirlinks"] .= "[<a href=\"${sofarurl}rev=$rev&amp;sc=$showchanged\">".$subs[$n]."/]</a> ";
   }
   
   if ($dir)
   {
      $vars["curdirlinks"] .=  "[<b>".$subs[$n]."</b>/]";
   }
   else
   {
      $vars["curdirlinks"] .=  "[<b>".$subs[$n]."</b>]";
   }
}

// Create links out of http:// and mailto: tags

function create_anchors($text)
{
   $ret = $text;

   // Match correctly formed URLs that aren't already links
      $ret = preg_replace("#\b(?<!href=\")([a-z]+?)://(\S*)([\w/]+)#i",
                          "<a href=\"\\1://\\2\\3\" target=\"_blank\">\\1://\\2\\3</a>",
                          $ret);
                          
      // Now match anything beginning with www, as long as it's not //www since they were matched above                    
      $ret = preg_replace("#\b(?<!//)www\.(\S*)([\w/]+)#i",
                          "<a href=\"http://www.\\1\\2\" target=\"_blank\">www.\\1\\2</a>",
                          $ret);

      // Match email addresses
      $ret = preg_replace("#\b([\w\-_.]+)@([\w\-.]+)\b#i",
                          "<a href=\"mailto:\\1@\\2\">\\1@\\2</a>",
                          $ret);
   
   // Replace any usernames
      $ret = preg_replace("#\[:nom:([^\]]*)\]#e",
                          "username(0, trim(\"\\1\"))",
                          $ret);
   
      return ($ret);
}

function getFullURL($loc)
{
   $protocol = 'http';
   
   if (isset($_SERVER["HTTPS"]) && (strtolower($_SERVER["HTTPS"]) != "off"))
   {
      $protocol = "https";
   }
   
   $port = ":".$_SERVER["SERVER_PORT"];
   if ((":80" == $port && "http" == $protocol) ||
       (":443" == $port && "https" == $protocol)) 
   {
      $port = "";
   }
   
   if (isset($_SERVER["HTTP_HOST"]))
   {
      $host = $_SERVER["HTTP_HOST"];
   }
   else if (isset($_SERVER["SERVER_NAME"]))
   {
      $host = $_SERVER["SERVER_NAME"].$port;
   }
   else if (isset($_SERVER["SERVER_ADDR"]))
   {
      $host = $_SERVER["SERVER_ADDR"].$port;
   }
   else
   {
      print "Unable to redirect";
      exit;
   }
   
   $url     = $protocol . "://" . $host . $loc;

   return $url;
}

// hardspace
//
// Replace the spaces at the front of a line with hard spaces

$spacearray = array (
0 => "",
1 => "&nbsp;",
2 => "&nbsp;&nbsp;",
3 => "&nbsp;&nbsp;&nbsp;",
4 => "&nbsp;&nbsp;&nbsp;&nbsp;",
5 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;",
6 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;",
7 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;",
8 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;",
9 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;",
10 => "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"
);

function hardspace($s)
{
   global $spacearray, $config, $rep;

   $len = strlen($s);

   // Calculate the number of spaces to added (expanding tabs)
   for ($i = 0, $numspaces = 0; $i < $len; $i++)
   {
      if ($s[$i] == " ")
            $numspaces += 1;
         else
            if ($s[$i] == "\t")
               $numspaces += $rep->getExpandTabsBy();
            else
               break;
   }
   
   // Strip the leading blanks
   $s = substr($s, $i);

   // Create a string of &nbsp;'s
   $spaces = "";
   while ($numspaces >= 10)
   {
     $spaces .= $spacearray[10];
     $numspaces -= 10;
   }
   $spaces .= $spacearray[$numspaces];
   
   // Stick them together
   return $spaces.$s;
}
?>

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