Trim whitespaces from the end of environment contents when rendering

Author: xemlock

library/PhpLatex/Renderer/Abstract.php

@@ -108,7 +108,7 @@ public static function toLatex($node) // {{{
                     $children = array_slice($children, $argsEnd);
 
                     return "\\begin{" . $node->value . "}" . self::toLatex($args) . "\n"
-                         . self::toLatex($children) . "\n"
+                         . rtrim(self::toLatex($children)) . "\n"
                          . "\\end{" . $node->value . "}";
 
                 case PhpLatex_Parser::TYPE_DOCUMENT:

tests/PhpLatex/Test/Renderer/AbstractTest.php

@@ -24,9 +24,9 @@ public function testTabular()
 
         $this->assertEquals(
 '\begin{tabular}{ |c|c|c| }
- \hline cell1 & cell2 & cell3 \\\\ cell4 & cell5 & cell6 \\\\ cell7 & cell8 & cell9 \\\\ \hline' . ' ' . '
+ \hline cell1 & cell2 & cell3 \\\\ cell4 & cell5 & cell6 \\\\ cell7 & cell8 & cell9 \\\\ \hline
 \end{tabular}\par \begin{tabular}{c}
- cell 1'. ' ' . '
+ cell 1
 \end{tabular}\par {\huge Foobar}', $output);
     }
 
@@ -48,7 +48,7 @@ public function testIssue6()
         $output = PhpLatex_Renderer_Abstract::toLatex($parser->parse($input));
 
         $this->assertEquals('\[ \begin{array}{c}
- \eta _{1} \\\\ \eta _{12} \\\\ \eta _{21} \\\\ \eta _{2}' . ' ' . '
+ \eta _{1} \\\\ \eta _{12} \\\\ \eta _{21} \\\\ \eta _{2}
 \end{array} \]', $output);
     }
 }