adds support for disabling latex2html

bibtexbrowser-test.php

@@ -224,6 +224,27 @@ class BTBTest extends PHPUnit_Framework_TestCase {
     $this->assertEquals("@article{aKey,\n title = {A Book},\n author = {Martin Monperrus},\n publisher = {Springer},\n year = {2009},\n}\n",    $dis->getText());
   }
 
+  function test_BIBTEXBROWSER_USE_LATEX2HTML() {
+    $bibtex = "@article{aKey,title={\`a Book},author={Martin Monperrus},publisher={Springer},year=2009,pages={42--4242},number=1}\n";
+   
+    bibtexbrowser_configure('BIBTEXBROWSER_USE_LATEX2HTML', true);
+    $test_data = fopen('php://memory','x+');
+    fwrite($test_data, $bibtex);
+    fseek($test_data,0);
+    $db = new BibDataBase();
+    $db->update_internal("inline", $test_data);
+    $dis = $db->getEntryByKey('aKey');
+    $this->assertEquals("à Book",$dis->getTitle());
+    
+    bibtexbrowser_configure('BIBTEXBROWSER_USE_LATEX2HTML', false);
+    $test_data = fopen('php://memory','x+');
+    fwrite($test_data, $bibtex);
+    fseek($test_data,0);
+    $db = new BibDataBase();
+    $db->update_internal("inline", $test_data);
+    $dis = $db->getEntryByKey('aKey');
+    $this->assertEquals("\`a Book",$dis->getTitle());
+  }
 
 } // end class
 

bibtexbrowser.php

@@ -149,6 +149,8 @@ if (defined('ENCODING')) {
 // a list of fields that will not be shown in the bibtex view if BIBTEXBROWSER_BIBTEX_VIEW=reconstructed
 @define('BIBTEXBROWSER_BIBTEX_VIEW_FILTEREDOUT','comment|note|file');
 
+// should Latex macros be executed (e.g. \'e -> é
+@define('BIBTEXBROWSER_USE_LATEX2HTML',true);
 
 // Which is the first html <hN> level that should be used in embedded mode?
 @define('BIBTEXBROWSER_HTMLHEADINGLEVEL', 2);
@@ -1118,17 +1120,20 @@ class BibEntry {
      // 1. trim space
       $value = xtrim($value);
       
-      // 2. transform Latex markup to HTML entities (easier than a one to one mapping to each character)
-      // HTML entity is an intermediate format
-      $value = latex2html($value);
+      if (c('BIBTEXBROWSER_USE_LATEX2HTML')) {
+        // 2. transform Latex markup to HTML entities (easier than a one to one mapping to each character)
+        // HTML entity is an intermediate format
+        $value = latex2html($value);
         
-      // 3. transform existing encoded character in the new format
+        // 3. transform to the target output encoding
+        $value = html_entity_decode($value, ENT_QUOTES|ENT_XHTML, OUTPUT_ENCODING);
+      }
+      
+      // 4. transform existing encoded character in the new format
       if (function_exists('mb_convert_encoding') && OUTPUT_ENCODING != BIBTEX_INPUT_ENCODING) {
         $vaue = mb_convert_encoding($value, OUTPUT_ENCODING, BIBTEX_INPUT_ENCODING);
       }
 
-      // 4. transform to the target output encoding
-      $value = html_entity_decode($value, ENT_QUOTES|ENT_XHTML, OUTPUT_ENCODING);
     } else {
       //echo "xx".$value."xx\n";
     }