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+
+<?php
+/* langedit.php
+ *
+ * Translation tool for the Flyspray Bug Tracker System
+ * http://flyspray.org
+ *
+ * Author
+ *  Lars-Erik Hoffsten
+ *  larserik@softpoint.nu
+ *
+ * 2006-06-05 Version 1.0
+ *  Initial version
+ * 2006-06-05 Version 1.1
+ *  Using UTF-8 character encoding
+ *  Handles all kinds of characters like line feed etc that need special escaping
+ *  Hides backup files with leading '.' in filename
+ *  Creates a work file for better safety
+ *  New languages are easily created just by typing the new language code on the URL
+ * 2006-06-07 Version 1.2
+ *  Moved to the setup directory so that it wouldn't be left behind in the
+ *  installation to be used by some one unauthorized
+ *  mb_strlen() replaced by strlen(utf_decode()) because mb_* functions are not standard
+ * 2006-06-12 Version 1.3
+ *  Writes correct array name for english
+ *
+ * 2015-02-09
+ *  use flyspray theme, add button targeting translation overview for better workflow
+ * 2015-03-02
+ *  integration into flyspray user interface
+ *
+ * Usage: http://.../flyspray/?do=langedit&lang=sv
+ * "sv" represents your language code.
+ *
+ * !!!
+ * Note that this script rewrites the language file completely when saving.
+ * Anything else than the $translation array will be lost including any file comments.
+ * !!!
+ */
+
+if(!defined('IN_FS')) {
+    die('Do not access this file directly.');
+}
+
+# let also project managers allow translation of flyspray
+if(!$user->perms('manage_project')) {
+    Flyspray::show_error(28);
+}
+
+// Make it possible to reload page after updating language
+// Don't want to send form data again if user reloads the page
+ob_start();
+?>
+<script language="javascript">
+// Indicate which texts are changed, called from input and textarea onchange
+function set(id){
+  var checkbox = document.getElementById('id_checkbox_' + id);
+  if(checkbox)
+    checkbox.checked = true;
+  var hidden = document.getElementById('id_hidden_' + id);
+  if(hidden)
+    hidden.disabled = false;
+  var conf = document.getElementById('id_confirm');
+  if(conf)
+    conf.disabled = true;
+}
+</script>
+<?php
+
+// Set current directory to where the language files are
+chdir('lang');
+
+$lang = isset($_GET['lang']) ? $_GET['lang']:false;
+$fail = '';
+if(!$lang || !preg_match('/^[a-zA-Z0-9_]+$/', $lang)){
+	$fail .= "Language code not supplied correctly<br>\n";
+}
+if(!file_exists('en.php')) {
+	$fail .= "The english language file <code>en.php</code> is missing. Make sure this script is run from the same directory as the language files <code>.../flyspray/lang/</code><br>\n";
+}
+if($fail) {
+	die($fail."<b>Usage:</b> <a href='?do=langedit&lang='>&lt;lang code&gt;</a> where &lt;lang code&gt; should be replaced by your language, e.g. <b>de</b> for German.");
+}
+// Read english language file in array $language (assumed to be UTF-8 encoded)
+require('en.php');
+if(!is_array(@$language)){
+	die("Invalid language file for english");
+}  
+$count = count($language);
+
+// Read the translation file in array $translation (assumed to be UTF-8 encoded)
+$working_copy = false;
+if(!file_exists($lang.'.php') && !file_exists('.'.$lang.'.php.work')) {
+	echo '<h3>A new language file will be created: <code>'.$lang.'.php</code></h2>';
+} else {
+	if($lang != 'en') {
+		if(file_exists('.'.$lang.'.php.work')) {
+			$working_copy = true;
+			include_once('.'.$lang.'.php.work'); // Read the translation array (work in progress)
+		} else{
+			include($lang.'.php'); // Read the original translation array - maybe again, no _once here!
+		}
+	} else if(file_exists('.en.php.work')){
+		$working_copy = true;
+		$tmp = $language;
+		include_once('.en.php.work'); // Read the language array (work in progress)
+		$translation = $language;  // Edit the english language file
+		$language = $tmp;
+	} else{
+		$translation = $language;  // Edit the english language file
+	}
+
+	if(!is_array(@$translation)){
+		echo "<b>Warning: </b>the translation file does not contain the \$translation array, a new file will be created: <code>$lang.php</code>\n";
+	}
+}
+
+$limit = 30;
+$begin = isset($_GET['begin']) ? (int)($_GET['begin'] / $limit) * $limit : 0;
+
+// Was show missing pressed?
+$show_empty = (!isset($_POST['search']) && isset($_REQUEST['empty']));  // Either POST or URL
+// Any text in search box?
+if(!$show_empty && isset($_POST['search_for'])) {
+	$search = trim($_POST['search_for']);
+} else if(!$show_empty && isset($_GET['search_for'])) {
+	$search = trim(urldecode($_GET['search_for']));
+} else {
+	$search = "";
+}
+// Path to this file
+$self = "{$_SERVER['SCRIPT_NAME']}?do=langedit&lang=$lang";
+
+if(isset($_POST['confirm'])) {
+  // Make a backup
+  unlink(".$lang.php.bak");
+  rename("$lang.php", ".$lang.php.bak");
+  rename(".$lang.php.work", "$lang.php");
+  // Reload page, so that form data won't get posted again on refresh
+  header("location: $self&begin=$begin" . ($search? "&search_for=".urlencode($search): "") . ($show_empty? "&empty=": ""));
+  exit;
+} else if(isset($_POST['submit']) && isset($_POST['L'])) {
+  // Save button was pressed
+  update_language($lang, $_POST['L'], @$_POST['E']);
+  // Reload page, so that form data won't get posted again on refresh
+  header("location: $self&begin=$begin" . ($search? "&search_for=".urlencode($search): "") . ($show_empty? "&empty=": ""));
+  exit;
+}
+
+// One form for all buttons and inputs
+echo '<a class="button" href="?do=langdiff">Overview</a>';
+echo "<form action=\"$self&do=langedit&begin=$begin". ($show_empty? "&empty=": "") . "\" method=\"post\">\n";
+echo "<table cellspacing=0 cellpadding=1>\n<tr><td colspan=3>";
+// Make page links
+for($p = 0; $p < $count; $p += $limit){
+	if($p){
+		echo " | ";
+	}
+	$bgn = $p+1;
+	$end = min($p+$limit, $count);
+	if($p != $begin || $search || $show_empty) {
+		echo "<a href=\"$self&begin=$bgn\">$bgn&hellip;$end</a>\n";  // Show all links when searching or display all missing strings
+	} else {
+		echo "<b>$bgn&hellip;$end</b>\n";
+	}
+}
+?>
+</td><td>
+<input type="submit" name="submit" value="Save changes" title="Saves changes to a work file">
+<input type="submit" name="confirm" id="id_confirm" value="Confirm all changes"<?php echo !$working_copy ? ' disabled="disabled"': ''; ?> title="Confirm all changes and replace the original language file">
+<br>
+<?php 
+if($working_copy) {
+  echo "Your changes are stored in <code>.$lang.php.work</code> until you press 'Confirm all changes'<br>";
+}
+// Search
+echo '<input type="text" name="search_for" value="'.Filters::noXSS($search).'"><input type="submit" name="search" value="Search">';
+// List empty
+if($lang != 'en') {
+  echo '<input type="submit" name="empty" value="Show missing" title="Show all texts that have no translation">';
+}
+?>
+</td></tr>
+<tr><th colspan=2>Key</th><th>English</th><th>Translation:<?php echo $lang; ?></th></tr>
+<?php 
+$i = 0;  // Counter to find offset
+$j = 0;  // Counter for background shading
+foreach ($language as $key => $val){
+  $trans = @$translation[$key];
+  if((!$search && !$show_empty && $i >= $begin) ||
+   ($search && (stristr($key, $search) || stristr($val, $search) || stristr($trans, $search))) ||
+   ($show_empty && !$trans)){
+    $bg = ($j++ & 1)? '#fff': '#eed';
+    // Key
+    echo '<tr style="background-color:'.$bg.'" valign="top"><td align="right">'.($i+1).'</td><td><b>'.$key.'</b></td>';
+    // English (underline leading and trailing spaces)
+    $space = '<b style="color:#c00;" title="Remember to include a space in the translation!">_</b>';
+    echo '<td>'. (preg_match("/^[ \t]/",$val)? $space: "") . nl2br(htmlentities($val)). (preg_match("/[ \t]$/",$val)? $space: "") ."</td>\n";
+    echo '<td align="right"><nobr>';
+    echo '<input type="checkbox" disabled="disabled" id="id_checkbox_'.$key.'">';
+    echo '<input type="hidden" disabled="disabled" id="id_hidden_'.$key.'" name="E['.$key.']">';
+    // Count lines in both english and translation
+    $lines = 1 + max(preg_match_all("/\n/", $val, $matches), preg_match_all("/\n/", $trans, $matches));
+    // Javascript call on some input events
+    $onchange = 'onchange="set(\''.$key.'\');" onkeypress="set(\''.$key.'\');"';
+    // \ is displayed as \\ in edit fields to allow \n as line feed
+    $trans = str_replace("\\", "\\\\", $trans);
+    if($lines > 1 || strlen(utf8_decode($val)) > 60 || strlen(utf8_decode($trans)) > 60){
+      // Format long texts for <textarea>, remove spaces after each new line
+      $trans = preg_replace("/\n[ \t]+|\\n/", "\n", htmlentities($trans, ENT_NOQUOTES, "UTF-8"));
+      echo '<textarea cols=79 rows='.max(4,$lines).' name="L['.$key.']" '.$onchange.'>'.$trans.'</textarea>';
+    } else{
+      // Format short texts for <input type=text>
+      $trans = str_replace(array("\n", "\""), array("\\n", "&quot;"), $trans);
+      echo '<input class="edit" type="text" name="L['.$key.']" value="'.$trans.'" size=80 '.$onchange.'>';
+    }
+    echo "</nobr></td></tr>\n";
+
+    if(--$limit == 0 && !$search && !$show_empty){
+      break;
+    }
+  }
+  $i++;
+}
+?>
+</table>
+<hr>
+<table width="100%">
+<tr>
+<td>The language files are UTF-8 encoded, avoid manual editing if You are not sure that your editor supports UTF-8<br>
+Syntax for <b>\</b> is <b>\\</b> and for line feed type <b>\\n</b> in single line edit fields</td>
+<td style="text-align: right;"><i>langedit by <a href="mailto:larserik@softpoint.nu">larserik@softpoint.nu</a></i></td>
+</tr>
+</table>
+<?php
+
+$content = ob_get_contents();
+ob_end_clean();
+
+$page->uses('content');
+$page->pushTpl('admin.translation.tpl');
+
+// Parse string for \n and \\ to be replaced by <lf> and \
+function parseNL($str) {
+  $pos = 0;
+  while(($pos = strpos($str, "\\", $pos)) !== false){
+    switch(substr($str, $pos, 2)){
+    case "\\n":
+      $str = substr_replace($str, "\n", $pos, 2);
+      break;
+    case "\\\\":
+      $str = substr_replace($str, "\\", $pos, 2);
+      break;
+    }
+    $pos++;
+  }
+  return $str;
+}
+
+function update_language($lang, &$strings, $edit) {
+  global $language, $translation;
+
+  if(!is_array($edit)) {
+    return;
+  }
+  // Form data contains UTF-8 encoded text
+  foreach($edit as $key => $dummy){
+    if(@$strings[$key]) {
+      $translation[$key] = parseNL($strings[$key]);
+    } else {
+      unset($translation[$key]);
+    }
+  }
+  // Make a backup just in case!
+  if(!file_exists(".$lang.php.safe")){
+    // Make one safe backup that will NOT be changed by this script
+    copy("$lang.php", ".$lang.php.safe");
+  }
+  if(file_exists(".$lang.php.work")){
+    // Then make ordinary backups
+    copy(".$lang.php.work", ".$lang.php.bak");
+  }
+  // Write the translation array to file with UNIX style line endings
+  $file = fopen(".$lang.php.work", "w");
+  // Write the UTF-8 BOM, Byte Order Marker
+  //fprintf($file, chr(0xef).chr(0xbb).chr(0xbf));
+  // Header
+  fprintf($file, "<?php\n//\n"
+    ."// This file is auto generated with langedit.php\n"
+    ."// Characters are UTF-8 encoded\n"
+    ."// \n"
+    ."// Be careful when editing this file manually, some text editors\n"
+    ."// may convert text to UCS-2 or similar (16-bit) which is NOT\n"
+    ."// readable by the PHP parser\n"
+    ."// \n"
+    ."// Furthermore, nothing else than the language array is saved\n"
+    ."// when using the langedit.php editor!\n//\n");
+  if($lang == 'en') {
+    fprintf($file, "\$language = array(\n");
+  } else {
+    fprintf($file, "\$translation = array(\n");
+  }
+  
+  // The following characters will be escaped in multiline strings
+  // in the following order:
+  // \    => \\
+  // "    => \"
+  // $    => \$
+  // <lf> => \n
+  // <cr> are removed if any
+  $pattern = array("\\",   "\"",   "\$",   "\n",  "\r");
+  $replace = array("\\\\", "\\\"", "\\\$", "\\n", "");
+  // Write the array to the file, ordered as the english language file
+  foreach($language as $key => $val){
+    $trans = @$translation[$key];
+    if(!$trans) {
+      continue;
+    }
+    if(strstr($trans, "\n")) {  // Use double quotes for multiline
+      fprintf($file, "%-26s=> \"%s\",\n", "'$key'", str_replace($pattern, $replace, $trans));
+    } else {  // Use single quotes for single lines, only \ and ' needs escaping
+      fprintf($file, "%-26s=> '%s',\n", "'$key'", str_replace(array("\\","'"), array("\\\\", "\\'"), $trans));
+    }
+  }
+  fprintf($file, ");\n\n?".">\n");  // PHP end tag currupts some syntax color coders
+  fclose($file);
+}
+
+?>