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          * @param $messagesFolder String: path to a folder to store the MediaWiki messages. Defaults to the current install.
  45          */
  46         public static function writeMessagesToFile( $messages, $code, $write, $listUnknown, $removeUnknown, $messagesFolder = false ) {
  47                 # Rewrite the messages array
  48                 $messages = self::writeMessagesArray( $messages, $code == 'en', false, $removeUnknown );
  49                 $messagesText = $messages[0];
  50                 $sortedMessages = $messages[1];
  51
  52                 # Write to the file
  53                 if ( $messagesFolder ) {
  54                         $filename = Language::getFileName( "$messagesFolder/Messages", $code );
  55                 } else {
  56                         $filename = Language::getMessagesFileName( $code );
  57                 }
  58
  59                 if ( file_exists( $filename ) ) {
  60                         $contents = file_get_contents( $filename );
  61                 } else {
  62                         $contents = '<?php
  63 $messages = array(
  64 );
  65 ';
  66                 }
  67
  68                 if ( strpos( $contents, '$messages' ) !== false ) {
  69                         $contents = explode( '$messages', $contents );
  70                         if ( $messagesText == '$messages' . $contents[1] ) {
  71                                 echo "Generated messages for language $code. Same as the current file.\n";
  72                         } else {
  73                                 if ( $write ) {
  74                                         $new = $contents[0];
  75                                         $new .= $messagesText;
  76                                         file_put_contents( $filename, $new );
  77                                         echo "Generated and wrote messages for language $code.\n";
  78                                 } else {
  79                                         echo "Generated messages for language $code. Please run the script again (without the parameter \"dry-run\") to write the array to the file.\n";
  80                                 }
  81                         }
  82                         if ( $listUnknown && isset( $sortedMessages['unknown'] ) && !empty( $sortedMessages['unknown'] ) ) {
  83                                 if ( $removeUnknown ) {
  84                                         echo "\nThe following " . count( $sortedMessages['unknown'] ) . " unknown messages have been removed:\n";
  85                                 } else {
  86                                         echo "\nThere are " . count( $sortedMessages['unknown'] ) . " unknown messages, please check them:\n";
  87                                 }
  88                                 foreach ( $sortedMessages['unknown'] as $key => $value ) {
  89                                         echo "* " . $key . "\n";
  90                                 }
  91                         }
  92                 } else {
  93                         echo "Generated messages for language $code. There seem to be no messages array in the file.\n";
  94                 }
  95         }
  96
  97         /**
  98          * Write a messages array as a PHP text.
  99          *
 100          * @param $messages Array: the messages array.
 101          * @param $ignoredComments Boolean: show comments about ignored and optional
 102          *                         messages? (For English.)
 103          * @param $prefix String: base path for messages.inc and messageTypes.inc files
 104          *                or false for default path (this directory)
 105          * @param $removeUnknown Boolean: whether to remove unkown messages
 106          *
 107          * @return Array of the PHP text and the sorted messages array.
 108          */
 109         public static function writeMessagesArray( $messages, $ignoredComments = false, $prefix = false, $removeUnknown = false ) {
 110                 # Load messages
 111                 $dir = $prefix ? $prefix : __DIR__;
 112
 113                 require $dir . '/messages.inc';
 114                 self::$messageStructure = $wgMessageStructure;
 115                 self::$blockComments = $wgBlockComments;
 116
 117                 require $dir . '/messageTypes.inc';
 118                 self::$ignoredMessages = $wgIgnoredMessages;
 119                 self::$optionalMessages = $wgOptionalMessages;
 120
 121                 # Sort messages to blocks
 122                 $sortedMessages['unknown'] = $messages;
 123                 foreach ( self::$messageStructure as $blockName => $block ) {
 124                         /**
 125                          * @var $block array
 126                          */
 127                         foreach ( $block as $key ) {
 128                                 if ( array_key_exists( $key, $sortedMessages['unknown'] ) ) {
 129                                         $sortedMessages[$blockName][$key] = $sortedMessages['unknown'][$key];
 130                                         unset( $sortedMessages['unknown'][$key] );
 131                                 }
 132                         }
 133                 }
 134
 135                 # Write all the messages
 136                 $messagesText = "\$messages = array(
 137 ";
 138                 foreach ( $sortedMessages as $block => $messages ) {
 139                         # Skip if it's the block of unknown messages - handle that in the end of file
 140                         if ( $block == 'unknown' ) {
 141                                 continue;
 142                         }
 143
 144                         if ( $ignoredComments ) {
 145                                 $ignored = self::$ignoredMessages;
 146                                 $optional = self::$optionalMessages;
 147                         } else {
 148                                 $ignored = array();
 149                                 $optional = array();
 150                         }
 151                         $comments = self::makeComments( array_keys( $messages ), $ignored, $optional );
 152
 153                         # Write the block
 154                         $messagesText .= self::writeMessagesBlock( self::$blockComments[$block], $messages, $comments );
 155                 }
 156
 157                 # Write the unknown messages, alphabetically sorted.
 158                 # Of course, we don't have any comments for them, because they are unknown.
 159                 if ( !$removeUnknown ) {
 160                         ksort( $sortedMessages['unknown'] );
 161                         $messagesText .= self::writeMessagesBlock( 'Unknown messages', $sortedMessages['unknown'] );
 162                 }
 163                 $messagesText .= ");
 164 ";
 165                 return array( $messagesText, $sortedMessages );
 166         }
 167
 168         /**
 169          * Generates an array of comments for messages.
 170          *
 171          * @param $messages Array: key of messages.
 172          * @param $ignored Array: list of ingored message keys.
 173          * @param $optional Array: list of optional message keys.
 174          * @return array
 175          */
 176         public static function makeComments( $messages, $ignored, $optional ) {
 177                 # Comment collector
 178                 $commentArray = array();
 179
 180                 # List of keys only
 181                 foreach ( $messages as $key ) {
 182                         if ( in_array( $key, $ignored ) ) {
 183                                 $commentArray[$key] = ' # ' . self::$ignoredComment;
 184                         } elseif ( in_array( $key, $optional ) ) {
 185                                 $commentArray[$key] = ' # ' . self::$optionalComment;
 186                         }
 187                 }
 188
 189                 return $commentArray;
 190         }
 191
 192         /**
 193          * Write a block of messages to PHP.
 194          *
 195          * @param $blockComment String: the comment of whole block.
 196          * @param $messages Array: the block messages.
 197          * @param $messageComments Array: optional comments for messages in this block.
 198          * @param $prefix String: prefix for every line, for indenting purposes.
 199          *
 200          * @return string The block, formatted in PHP.
 201          */
 202         public static function writeMessagesBlock( $blockComment, $messages,
 203                 $messageComments = array(), $prefix = '' ) {
 204
 205                 $blockText = '';
 206
 207                 # Skip the block if it includes no messages
 208                 if ( empty( $messages ) ) {
 209                         return '';
 210                 }
 211
 212                 # Format the block comment (if exists); check for multiple lines comments
 213                 if ( !empty( $blockComment ) ) {
 214                         if ( strpos( $blockComment, "\n" ) === false ) {
 215                                 $blockText .= "$prefix# $blockComment
 216 ";
 217                         } else {
 218                                 $blockText .= "$prefix/*
 219 $blockComment
 220 */
 221 ";
 222                         }
 223                 }
 224
 225                 # Get max key length
 226                 $maxKeyLength = max( array_map( 'strlen', array_keys( $messages ) ) );
 227
 228                 # Format the messages
 229                 foreach ( $messages as $key => $value ) {
 230                         # Add the key name
 231                         $blockText .= "$prefix'$key'";
 232
 233                         # Add the appropriate block whitespace
 234                         $blockText .= str_repeat( ' ', $maxKeyLength - strlen( $key ) );
 235
 236                         # Refer to the value
 237                         $blockText .= ' => ';
 238
 239                         # Check for the appropriate apostrophe and add the value
 240                         # Quote \ here, because it needs always escaping
 241                         $value = addcslashes( $value, '\\' );
 242
 243                         # For readability
 244                         $single = "'";
 245                         $double = '"';
 246
 247                         if ( strpos( $value, $single ) === false ) {
 248                                 # Nothing ugly, just use '
 249                                 $blockText .= $single . $value . $single;
 250                         } elseif ( strpos( $value, $double ) === false && !preg_match( '/\$[a-zA-Z_\x7f-\xff]/', $value ) ) {
 251                                 # No "-quotes, no variables that need quoting, use "
 252                                 $blockText .= $double . $value . $double;
 253                         } else {
 254                                 # Something needs quoting, pick the quote which causes less quoting
 255                                 $quote = substr_count( $value, $double ) + substr_count( $value, '$' ) >= substr_count( $value, $single ) ? $single : $double;
 256                                 if ( $quote === $double ) {
 257                                         $extra = '$';
 258                                 } else {
 259                                         $extra = '';
 260                                 }
 261                                 $blockText .= $quote . addcslashes( $value, $quote . $extra ) . $quote;
 262                         }
 263
 264                         # Comma
 265                         $blockText .= ',';
 266
 267                         # Add comments, if there is any
 268                         if ( array_key_exists( $key, $messageComments ) ) {
 269                                 $blockText .= $messageComments[$key];
 270                         }
 271
 272                         # Newline
 273                         $blockText .= "
 274 ";
 275                 }
 276
 277                 # Newline to end the block
 278                 $blockText .= "
 279 ";
 280
 281                 return $blockText;
 282         }
 283 }