maintenance/language/writeMessagesArray.inc

   1 <?php
   2 /**
   3  * Write a messages array as a PHP text.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup MaintenanceLanguage
  22  */
  23
  24 /**
  25  * @ingroup MaintenanceLanguage
  26  */
  27 class MessageWriter {
  28         static $optionalComment = 'only translate this message to other languages if you have to change it';
  29         static $ignoredComment = "do not translate or duplicate this message to other languages";
  30
  31         static $messageStructure;
  32         static $blockComments;
  33         static $ignoredMessages;
  34         static $optionalMessages;
  35
  36         /**
  37          * Write a messages array as a PHP text and write it to the messages file.
  38          *
  39          * @param $messages Array: the messages array.
  40          * @param $code String: the language code.
  41          * @param $write Boolean: write to the messages file?
  42          * @param $listUnknown Boolean: list the unknown messages?
  43          * @param $removeUnknown Boolean: whether to remove unkown messages
  44          */
  45         public static function writeMessagesToFile( $messages, $code, $write, $listUnknown, $removeUnknown ) {
  46                 # Rewrite the messages array
  47                 $messages = self::writeMessagesArray( $messages, $code == 'en', false, $removeUnknown );
  48                 $messagesText = $messages[0];
  49                 $sortedMessages = $messages[1];
  50
  51                 # Write to the file
  52                 $filename = Language::getMessagesFileName( $code );
  53                 $contents = file_get_contents( $filename );
  54                 if( strpos( $contents, '$messages' ) !== false ) {
  55                         $contents = explode( '$messages', $contents );
  56                         if( $messagesText == '$messages' . $contents[1] ) {
  57                                 echo "Generated messages for language $code. Same as the current file.\n";
  58                         } else {
  59                                 if( $write ) {
  60                                         $new = $contents[0];
  61                                         $new .= $messagesText;
  62                                         file_put_contents( $filename, $new );
  63                                         echo "Generated and wrote messages for language $code.\n";
  64                                 } else {
  65                                         echo "Generated messages for language $code. Please run the script again (without the parameter \"dry-run\") to write the array to the file.\n";
  66                                 }
  67                         }
  68                         if( $listUnknown && isset( $sortedMessages['unknown'] ) && !empty( $sortedMessages['unknown'] ) ) {
  69                                 if ( $removeUnknown )
  70                                         echo "\nThe following " . count( $sortedMessages['unknown'] ) . " unknown messages have been removed:\n";
  71                                 else
  72                                         echo "\nThere are " . count( $sortedMessages['unknown'] ) . " unknown messages, please check them:\n";
  73                                 foreach( $sortedMessages['unknown'] as $key => $value ) {
  74                                         echo "* " . $key . "\n";
  75                                 }
  76                         }
  77                 } else {
  78                         echo "Generated messages for language $code. There seem to be no messages array in the file.\n";
  79                 }
  80         }
  81
  82         /**
  83          * Write a messages array as a PHP text.
  84          *
  85          * @param $messages Array: the messages array.
  86          * @param $ignoredComments Boolean: show comments about ignored and optional
  87          *                         messages? (For English.)
  88          * @param $prefix String: base path for messages.inc and messageTypes.inc files
  89          *                or false for default path (this directory)
  90          * @param $removeUnknown Boolean: whether to remove unkown messages
  91          *
  92          * @return Array of the PHP text and the sorted messages array.
  93          */
  94         public static function writeMessagesArray( $messages, $ignoredComments = false, $prefix = false, $removeUnknown = false ) {
  95                 # Load messages
  96                 $dir = $prefix ? $prefix : dirname( __FILE__ );
  97
  98                 require( $dir . '/messages.inc' );
  99                 self::$messageStructure = $wgMessageStructure;
 100                 self::$blockComments = $wgBlockComments;
 101
 102                 require( $dir . '/messageTypes.inc' );
 103                 self::$ignoredMessages = $wgIgnoredMessages;
 104                 self::$optionalMessages = $wgOptionalMessages;
 105
 106                 # Sort messages to blocks
 107                 $sortedMessages['unknown'] = $messages;
 108                 foreach( self::$messageStructure as $blockName => $block ) {
 109                         /**
 110                          * @var $block array
 111                          */
 112                         foreach( $block as $key ) {
 113                                 if( array_key_exists( $key, $sortedMessages['unknown'] ) ) {
 114                                         $sortedMessages[$blockName][$key] = $sortedMessages['unknown'][$key];
 115                                         unset( $sortedMessages['unknown'][$key] );
 116                                 }
 117                         }
 118                 }
 119
 120                 # Write all the messages
 121                 $messagesText = "\$messages = array(
 122 ";
 123                 foreach( $sortedMessages as $block => $messages ) {
 124                         # Skip if it's the block of unknown messages - handle that in the end of file
 125                         if( $block == 'unknown' ) {
 126                                 continue;
 127                         }
 128
 129                         if( $ignoredComments ) {
 130                                 $ignored = self::$ignoredMessages;
 131                                 $optional = self::$optionalMessages;
 132                         } else {
 133                                 $ignored = array();
 134                                 $optional = array();
 135                         }
 136                         $comments = self::makeComments( array_keys( $messages ), $ignored, $optional );
 137
 138                         # Write the block
 139                         $messagesText .= self::writeMessagesBlock( self::$blockComments[$block], $messages, $comments );
 140                 }
 141
 142                 # Write the unknown messages, alphabetically sorted.
 143                 # Of course, we don't have any comments for them, because they are unknown.
 144                 if ( !$removeUnknown ) {
 145                         ksort( $sortedMessages['unknown'] );
 146                         $messagesText .= self::writeMessagesBlock( 'Unknown messages', $sortedMessages['unknown'] );
 147                 }
 148                 $messagesText .= ");
 149 ";
 150                 return array( $messagesText, $sortedMessages );
 151         }
 152
 153         /**
 154          * Generates an array of comments for messages.
 155          *
 156          * @param $messages Array: key of messages.
 157          * @param $ignored Array: list of ingored message keys.
 158          * @param $optional Array: list of optional message keys.
 159          * @return array
 160          */
 161         public static function makeComments( $messages, $ignored, $optional ) {
 162                 # Comment collector
 163                 $commentArray = array();
 164
 165                 # List of keys only
 166                 foreach( $messages as $key ) {
 167                         if( in_array( $key, $ignored ) ) {
 168                                 $commentArray[$key] = ' # ' . self::$ignoredComment;
 169                         } elseif( in_array( $key, $optional ) ) {
 170                                 $commentArray[$key] = ' # ' . self::$optionalComment;
 171                         }
 172                 }
 173
 174                 return $commentArray;
 175         }
 176
 177         /**
 178          * Write a block of messages to PHP.
 179          *
 180          * @param $blockComment String: the comment of whole block.
 181          * @param $messages Array: the block messages.
 182          * @param $messageComments Array: optional comments for messages in this block.
 183          * @param $prefix String: prefix for every line, for indenting purposes.
 184          *
 185          * @return string The block, formatted in PHP.
 186          */
 187         public static function writeMessagesBlock( $blockComment, $messages,
 188                 $messageComments = array(), $prefix = '' ) {
 189
 190                 $blockText = '';
 191
 192                 # Skip the block if it includes no messages
 193                 if( empty( $messages ) ) {
 194                         return '';
 195                 }
 196
 197                 # Format the block comment (if exists); check for multiple lines comments
 198                 if( !empty( $blockComment ) ) {
 199                         if( strpos( $blockComment, "\n" ) === false ) {
 200                                 $blockText .= "$prefix# $blockComment
 201 ";
 202                         } else {
 203                                 $blockText .= "$prefix/*
 204 $blockComment
 205 */
 206 ";
 207                         }
 208                 }
 209
 210                 # Get max key length
 211                 $maxKeyLength = max( array_map( 'strlen', array_keys( $messages ) ) );
 212
 213                 # Format the messages
 214                 foreach( $messages as $key => $value ) {
 215                         # Add the key name
 216                         $blockText .= "$prefix'$key'";
 217
 218                         # Add the appropriate block whitespace
 219                         $blockText .= str_repeat( ' ', $maxKeyLength - strlen( $key ) );
 220
 221                         # Refer to the value
 222                         $blockText .= ' => ';
 223
 224                         # Check for the appropriate apostrophe and add the value
 225                         # Quote \ here, because it needs always escaping
 226                         $value = addcslashes( $value, '\\' );
 227
 228                         # For readability
 229                         $single = "'";
 230                         $double = '"';
 231
 232                         if( strpos( $value, $single ) === false ) {
 233                                 # Nothing ugly, just use '
 234                                 $blockText .= $single.$value.$single;
 235                         } elseif( strpos( $value, $double ) === false && !preg_match('/\$[a-zA-Z_\x7f-\xff]/', $value) ) {
 236                                 # No "-quotes, no variables that need quoting, use "
 237                                 $blockText .= $double.$value.$double;
 238                         } else {
 239                                 # Something needs quoting, pick the quote which causes less quoting
 240                                 $quote = substr_count( $value, $double ) + substr_count( $value, '$' ) >= substr_count( $value, $single ) ? $single : $double;
 241                                 if( $quote === $double ) {
 242                                         $extra = '$';
 243                                 } else {
 244                                         $extra = '';
 245                                 }
 246                                 $blockText .= $quote . addcslashes( $value, $quote . $extra ) . $quote;
 247                         }
 248
 249                         # Comma
 250                         $blockText .= ',';
 251
 252                         # Add comments, if there is any
 253                         if( array_key_exists( $key, $messageComments ) ) {
 254                                 $blockText .= $messageComments[$key];
 255                         }
 256
 257                         # Newline
 258                         $blockText .= "
 259 ";
 260                 }
 261
 262                 # Newline to end the block
 263                 $blockText .= "
 264 ";
 265
 266                 return $blockText;
 267         }
 268 }