mediawiki-extensions-Math/MathInputCheckTexvc.php
Kunal Mehta 241800f80d Use namespaced \MediaWiki\Logger\LoggerFactory
Change-Id: I78fca87d87379a694662c1a4ecc42e9401fd4c2c
2015-04-16 07:33:29 +00:00

108 lines
2.9 KiB
PHP

<?php
/**
* MediaWiki math extension
*
* (c) 2002-2015 Tomasz Wegrzanowski, Brion Vibber, Moritz Schubotz, and other MediaWiki contributors
* GPLv2 license; info in main package.
*
* @author Moritz Schubotz
*/
use MediaWiki\Logger\LoggerFactory;
class MathInputCheckTexvc extends MathInputCheck {
/**
* Converts an error returned by texvc to a localized exception
*
* @param string $texvcResult error result returned by texvc
* @param bool|MathRenderer $errorRenderer
* @return string
*/
public function convertTexvcError( $texvcResult, $errorRenderer = false ) {
$texvcStatus = substr( $texvcResult, 0, 1 );
$errDetails = htmlspecialchars( substr( $texvcResult, 1 ) );
if ( $errorRenderer === false ) {
$errorRenderer = new MathSource( $this->inputTeX );
}
switch ( $texvcStatus ) {
case 'E':
$errMsg = $errorRenderer->getError( 'math_lexing_error' );
break;
case 'S':
$errMsg = $errorRenderer->getError( 'math_syntax_error' );
break;
case 'F':
$errMsg = $errorRenderer->getError( 'math_unknown_function', $errDetails );
break;
default:
$errMsg = $errorRenderer->getError( 'math_unknown_error' );
}
return $errMsg;
}
/**
* @return boolean
*/
public function isValid() {
$us = $this;
$checkWork = new PoolCounterWorkViaCallback( 'MathTexvc-check', "", array(
'doWork' => function() use ( $us ) {
return $us->doValidCheck();
}
) );
return $checkWork->execute();
}
/**
* @return boolean
*/
public function doValidCheck() {
global $wgMathTexvcCheckExecutable;
if ( !is_executable( $wgMathTexvcCheckExecutable ) ) {
$msg = 'Missing "texvccheck" executable. Please see math/README to configure.';
trigger_error( $msg, E_USER_NOTICE );
LoggerFactory::getInstance( 'Math' )->error( $msg );
return true;
}
$cmd = $wgMathTexvcCheckExecutable . ' ' . wfEscapeShellArg( $this->inputTeX );
if ( wfIsWindows() ) {
# Invoke it within cygwin sh, because texvc expects sh features in its default shell
$cmd = 'sh -c ' . wfEscapeShellArg( $cmd );
}
LoggerFactory::getInstance( 'Math' )->debug( "TeX check command: $cmd" );
$contents = wfShellExec( $cmd );
LoggerFactory::getInstance( 'Math' )->debug( "TeX check result: $contents\n---" );
if ( strlen( $contents ) === 0 ) {
LoggerFactory::getInstance( 'Math' )->warning( 'TeX check output was empty.' );
$this->lastError = $this->convertTexvcError( $contents );
return false;
}
$retval = substr( $contents, 0, 1 );
if ( $retval !== '+' ) {
$this->lastError = $this->convertTexvcError( $contents );
LoggerFactory::getInstance( 'Math' )->warning( 'checkTex failed: ' . $this->lastError );
return false;
} else {
$this->validTeX = substr( $contents, 1 );
$this->isValid = true;
LoggerFactory::getInstance( 'Math' )->debug(
'checkTex successful tex is now: ' . $this->validTeX );
return true;
}
}
}