http://www.mediawiki.org/wiki/Special:Code/MediaWiki/56413
Revision: 56413
Author: thomasv
Date: 2009-09-16 13:50:09 +0000 (Wed, 16 Sep 2009)
Log Message:
-----------
extract text layer from pdf
Modified Paths:
--------------
trunk/extensions/PdfHandler/PdfHandler.image.php
trunk/extensions/PdfHandler/PdfHandler.php
trunk/extensions/PdfHandler/PdfHandler_body.php
Modified: trunk/extensions/PdfHandler/PdfHandler.image.php
===================================================================
--- trunk/extensions/PdfHandler/PdfHandler.image.php 2009-09-16 13:28:01 UTC
(rev 56412)
+++ trunk/extensions/PdfHandler/PdfHandler.image.php 2009-09-16 13:50:09 UTC
(rev 56413)
@@ -79,7 +79,7 @@
}
public function retrieveMetaData() {
- global $wgPdfInfo;
+ global $wgPdfInfo, $wgPdftoText;
if ( $wgPdfInfo ) {
wfProfileIn( 'pdfinfo' );
@@ -93,6 +93,25 @@
} else {
$data = null;
}
+
+ # Read text layer
+ if ( isset( $wgPdftoText ) ) {
+ wfProfileIn( 'pdftotext' );
+ $cmd = wfEscapeShellArg( $wgPdftoText ) . ' '.
wfEscapeShellArg( $this->mFilename ) . ' - ';
+ wfDebug( __METHOD__.": $cmd\n" );
+ $txt = wfShellExec( $cmd, $retval );
+ wfProfileOut( 'pdftotext' );
+ if( $retval == 0) {
+ # Get rid of invalid UTF-8, strip control
characters
+ wfSuppressWarnings();
+ $txt = iconv( "UTF-8","UTF-8//IGNORE", $txt );
+ wfRestoreWarnings();
+ $txt = preg_replace( "/[\013\035\037]/", "",
$txt );
+ $txt = htmlspecialchars($txt);
+ $pages = preg_split("/\f/s", $txt );
+ $data['text'] = $pages;
+ }
+ }
return $data;
}
Modified: trunk/extensions/PdfHandler/PdfHandler.php
===================================================================
--- trunk/extensions/PdfHandler/PdfHandler.php 2009-09-16 13:28:01 UTC (rev
56412)
+++ trunk/extensions/PdfHandler/PdfHandler.php 2009-09-16 13:50:09 UTC (rev
56413)
@@ -39,6 +39,7 @@
$wgPdfProcessor = 'gs';
$wgPdfPostProcessor = 'convert';
$wgPdfInfo = 'pdfinfo';
+$wgPdftoText = 'pdftotext';
$wgPdfOutputExtension = "jpg";
$wgPdfHandlerDpi = 150;
Modified: trunk/extensions/PdfHandler/PdfHandler_body.php
===================================================================
--- trunk/extensions/PdfHandler/PdfHandler_body.php 2009-09-16 13:28:01 UTC
(rev 56412)
+++ trunk/extensions/PdfHandler/PdfHandler_body.php 2009-09-16 13:50:09 UTC
(rev 56413)
@@ -202,4 +202,19 @@
$data = $this->getMetaArray( $image );
return PdfImage::getPageSize( $data, $page );
}
+
+ function getPageText( $image, $page ){
+ $data = $this->getMetaArray( $image, true );
+ if ( !$data ) {
+ return false;
+ }
+ if( ! isset( $data['text'] ) ) {
+ return false;
+ }
+ if( ! isset( $data['text'][$page-1] ) ) {
+ return false;
+ }
+ return $data['text'][$page-1];
+ }
+
}
_______________________________________________
MediaWiki-CVS mailing list
MediaWiki-CVS@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/mediawiki-cvs
