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 $ignoredMessages;
  19         static $optionalMessages;
  20
  21         /**
  22          * Write a messages array as a PHP text and write it to the messages file.
  23          *
  24          * @param $messages Array: the messages array.
  25          * @param $code String: the language code.
  26          * @param $write Boolean: write to the messages file?
  27          * @param $listUnknown Boolean: list the unknown messages?
  28          * @param $removeUnknown Boolean: whether to remove unkown messages
  29          */
  30         public static function writeMessagesToFile( $messages, $code, $write, $listUnknown, $removeUnknown ) {
  31                 # Rewrite the messages array
  32                 $messages = self::writeMessagesArray( $messages, $code == 'en', false, $removeUnknown );
  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                                 if ( $removeUnknown )
  55                                         echo "\nThe following " . count( $sortedMessages['unknown'] ) . " unknown messages have been removed:\n";
  56                                 else
  57                                         echo "\nThere are " . count( $sortedMessages['unknown'] ) . " unknown messages, please check them:\n";
  58                                 foreach( $sortedMessages['unknown'] as $key => $value ) {
  59                                         echo "* " . $key . "\n";
  60                                 }
  61                         }
  62                 } else {
  63                         echo "Generated messages for language $code. There seem to be no messages array in the file.\n";
  64                 }
  65         }
  66
  67         /**
  68          * Write a messages array as a PHP text.
  69          *
  70          * @param $messages Array: the messages array.
  71          * @param $ignoredComments Boolean: show comments about ignored and optional
  72          *                         messages? (For English.)
  73          * @param $prefix String: base path for messages.inc and messageTypes.inc files
  74          *                or false for default path (this directory)
  75          * @param $removeUnknown Boolean: whether to remove unkown messages
  76          *
  77          * @return Array of the PHP text and the sorted messages array.
  78          */
  79         public static function writeMessagesArray( $messages, $ignoredComments = false, $prefix = false, $removeUnknown = false ) {
  80                 # Load messages
  81                 $dir = $prefix ? $prefix : dirname( __FILE__ );
  82
  83                 require( $dir . '/messages.inc' );
  84                 self::$messageStructure = $wgMessageStructure;
  85                 self::$blockComments = $wgBlockComments;
  86
  87                 require( $dir . '/messageTypes.inc' );
  88                 self::$ignoredMessages = $wgIgnoredMessages;
  89                 self::$optionalMessages = $wgOptionalMessages;
  90
  91                 # Sort messages to blocks
  92                 $sortedMessages['unknown'] = $messages;
  93                 foreach( self::$messageStructure as $blockName => $block ) {
  94                         foreach( $block as $key ) {
  95                                 if( array_key_exists( $key, $sortedMessages['unknown'] ) ) {
  96                                         $sortedMessages[$blockName][$key] = $sortedMessages['unknown'][$key];
  97                                         unset( $sortedMessages['unknown'][$key] );
  98                                 }
  99                         }
 100                 }
 101
 102                 # Write all the messages
 103                 $messagesText = "\$messages = array(
 104 ";
 105                 foreach( $sortedMessages as $block => $messages ) {
 106                         # Skip if it's the block of unknown messages - handle that in the end of file
 107                         if( $block == 'unknown' ) {
 108                                 continue;
 109                         }
 110
 111                         if( $ignoredComments ) {
 112                                 $ignored = self::$ignoredMessages;
 113                                 $optional = self::$optionalMessages;
 114                         } else {
 115                                 $ignored = array();
 116                                 $optional = array();
 117                         }
 118                         $comments = self::makeComments( array_keys( $messages ), $ignored, $optional );
 119
 120                         # Write the block
 121                         $messagesText .= self::writeMessagesBlock( self::$blockComments[$block], $messages, $comments );
 122                 }
 123
 124                 # Write the unknown messages, alphabetically sorted.
 125                 # Of course, we don't have any comments for them, because they are unknown.
 126                 if ( !$removeUnknown ) {
 127                         ksort( $sortedMessages['unknown'] );
 128                         $messagesText .= self::writeMessagesBlock( 'Unknown messages', $sortedMessages['unknown'] );
 129                 }
 130                 $messagesText .= ");
 131 ";
 132                 return array( $messagesText, $sortedMessages );
 133         }
 134
 135         /**
 136          * Generates an array of comments for messages.
 137          *
 138          * @param $messages Array: key of messages.
 139          * @param $ignored Array: list of ingored message keys.
 140          * @param $optional Array: list of optional message keys.
 141          */
 142         public static function makeComments( $messages, $ignored, $optional ) {
 143                 # Comment collector
 144                 $commentArray = array();
 145
 146                 # List of keys only
 147                 foreach( $messages as $key ) {
 148                         if( in_array( $key, $ignored ) ) {
 149                                 $commentArray[$key] = ' # ' . self::$ignoredComment;
 150                         } elseif( in_array( $key, $optional ) ) {
 151                                 $commentArray[$key] = ' # ' . self::$optionalComment;
 152                         }
 153                 }
 154
 155                 return $commentArray;
 156         }
 157
 158         /**
 159          * Write a block of messages to PHP.
 160          *
 161          * @param $blockComment String: the comment of whole block.
 162          * @param $messages Array: the block messages.
 163          * @param $messageComments Array: optional comments for messages in this block.
 164          * @param $prefix String: prefix for every line, for indenting purposes.
 165          *
 166          * @return The block, formatted in PHP.
 167          */
 168         public static function writeMessagesBlock( $blockComment, $messages,
 169                 $messageComments = array(), $prefix = '' ) {
 170
 171                 $blockText = '';
 172
 173                 # Skip the block if it includes no messages
 174                 if( empty( $messages ) ) {
 175                         return '';
 176                 }
 177
 178                 # Format the block comment (if exists); check for multiple lines comments
 179                 if( !empty( $blockComment ) ) {
 180                         if( strpos( $blockComment, "\n" ) === false ) {
 181                                 $blockText .= "$prefix# $blockComment
 182 ";
 183                         } else {
 184                                 $blockText .= "$prefix/*
 185 $blockComment
 186 */
 187 ";
 188                         }
 189                 }
 190
 191                 # Get max key length
 192                 $maxKeyLength = max( array_map( 'strlen', array_keys( $messages ) ) );
 193
 194                 # Format the messages
 195                 foreach( $messages as $key => $value ) {
 196                         # Add the key name
 197                         $blockText .= "$prefix'$key'";
 198
 199                         # Add the appropriate block whitespace
 200                         $blockText .= str_repeat( ' ', $maxKeyLength - strlen( $key ) );
 201
 202                         # Refer to the value
 203                         $blockText .= ' => ';
 204
 205                         # Check for the appropriate apostrophe and add the value
 206                         # Quote \ here, because it needs always escaping
 207                         $value = addcslashes( $value, '\\' );
 208
 209                         # For readability
 210                         $single = "'";
 211                         $double = '"';
 212
 213                         if( strpos( $value, $single ) === false ) {
 214                                 # Nothing ugly, just use '
 215                                 $blockText .= $single.$value.$single;
 216                         } elseif( strpos( $value, $double ) === false && !preg_match('/\$[a-zA-Z_\x7f-\xff]/', $value) ) {
 217                                 # No "-quotes, no variables that need quoting, use "
 218                                 $blockText .= $double.$value.$double;
 219                         } else {
 220                                 # Something needs quoting, pick the quote which causes less quoting
 221                                 $quote = substr_count( $value, $double ) + substr_count( $value, '$' ) >= substr_count( $value, $single ) ? $single : $double;
 222                                 if( $quote === $double ) {
 223                                         $extra = '$';
 224                                 } else {
 225                                         $extra = '';
 226                                 }
 227                                 $blockText .= $quote . addcslashes( $value, $quote . $extra ) . $quote;
 228                         }
 229
 230                         # Comma
 231                         $blockText .= ',';
 232
 233                         # Add comments, if there is any
 234                         if( array_key_exists( $key, $messageComments ) ) {
 235                                 $blockText .= $messageComments[$key];
 236                         }
 237
 238                         # Newline
 239                         $blockText .= "
 240 ";
 241                 }
 242
 243                 # Newline to end the block
 244                 $blockText .= "
 245 ";
 246
 247                 return $blockText;
 248         }
 249 }