maintenance/language/writeMessagesArray.inc

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