Index: trunk/extensions/ParserFunctions/ParserFunctions.i18n.magic.php
===================================================================
--- trunk/extensions/ParserFunctions/ParserFunctions.i18n.magic.php (revision 29773)
+++ trunk/extensions/ParserFunctions/ParserFunctions.i18n.magic.php (revision 29774)
@@ -17,6 +17,7 @@
'if' => array( 0, 'if' ),
'ifeq' => array( 0, 'ifeq' ),
'ifexpr' => array( 0, 'ifexpr' ),
+ 'iferror' => array( 0, 'iferror' ),
'switch' => array( 0, 'switch' ),
'default' => array( 0, '#default' ),
'ifexist' => array( 0, 'ifexist' ),
Index: trunk/extensions/ParserFunctions/ParserFunctions.php
===================================================================
--- trunk/extensions/ParserFunctions/ParserFunctions.php (revision 29773)
+++ trunk/extensions/ParserFunctions/ParserFunctions.php (revision 29774)
@@ -108,6 +108,26 @@
}
}
+ function iferror( &$parser, $test = '', $then = '', $else = '' ) {
+ if ( preg_match( '/<(strong|span) class="error"/', $test ) ) {
+ return $then;
+ } else {
+ return $else;
+ }
+ }
+
+ function iferrorObj( &$parser, $frame, $args ) {
+ $test = isset( $args[0] ) ? trim( $frame->expand( $args[0] ) ) : '';
+ $then = isset( $args[1] ) ? $args[1] : false;
+ $else = isset( $args[2] ) ? $args[2] : false;
+ $result = $this->iferror( $parser, $test, $then, $else );
+ if ( $result === false ) {
+ return '';
+ } else {
+ return trim( $frame->expand( $result ) );
+ }
+ }
+
function switchHook( &$parser /*,...*/ ) {
$args = func_get_args();
array_shift( $args );
@@ -449,12 +469,13 @@
$wgParser->setFunctionHook( 'switch', array( &$wgExtParserFunctions, 'switchObj' ), SFH_OBJECT_ARGS );
$wgParser->setFunctionHook( 'ifexist', array( &$wgExtParserFunctions, 'ifexistObj' ), SFH_OBJECT_ARGS );
$wgParser->setFunctionHook( 'ifexpr', array( &$wgExtParserFunctions, 'ifexprObj' ), SFH_OBJECT_ARGS );
+ $wgParser->setFunctionHook( 'iferror', array( &$wgExtParserFunctions, 'iferrorObj' ), SFH_OBJECT_ARGS );
} else {
$wgParser->setFunctionHook( 'if', array( &$wgExtParserFunctions, 'ifHook' ) );
$wgParser->setFunctionHook( 'ifeq', array( &$wgExtParserFunctions, 'ifeq' ) );
$wgParser->setFunctionHook( 'switch', array( &$wgExtParserFunctions, 'switchHook' ) );
$wgParser->setFunctionHook( 'ifexist', array( &$wgExtParserFunctions, 'ifexist' ) );
- $wgParser->setFunctionHook( 'ifexpr', array( &$wgExtParserFunctions, 'ifexpr' ) );
+ $wgParser->setFunctionHook( 'iferror', array( &$wgExtParserFunctions, 'iferror' ) );
}
$wgParser->setFunctionHook( 'expr', array( &$wgExtParserFunctions, 'expr' ) );
