Restrict unicode chars allowed to what php core allows, refs #1361

src/Composer/Autoload/ClassMapGenerator.php

@@ -125,10 +125,10 @@ class ClassMapGenerator
 
         preg_match_all('{
             (?:
-                 \b(?<![\$:>])(?<type>class|interface'.$traits.') \s+ (?<name>[^\s\{]+)
+                 \b(?<![\$:>])(?<type>class|interface'.$traits.') \s+ (?<name>[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)
-               | \b(?<![\$:>])(?<ns>namespace) (?<nsname>\s+[^\s;{}\\\\]+(?:\s*\\\\\s*[^\s;{}\\\\]+)*)? \s*[\{;]
+               | \b(?<![\$:>])(?<ns>namespace) (?<nsname>\s+[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(?:\s*\\\\\s*[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*)? \s*[\{;]
             )
-        }iux', $contents, $matches);
+        }ix', $contents, $matches);
 
         $classes = array();
         $namespace = '';

tests/Composer/Test/Autoload/ClassMapGeneratorTest.php

@@ -54,7 +54,7 @@ class ClassMapGeneratorTest extends \PHPUnit_Framework_TestCase
                 'Foo\\LargeClass'         => realpath(__DIR__).'/Fixtures/classmap/LargeClass.php',
                 'Foo\\LargeGap'           => realpath(__DIR__).'/Fixtures/classmap/LargeGap.php',
                 'Foo\\MissingSpace'       => realpath(__DIR__).'/Fixtures/classmap/MissingSpace.php',
-                'Unicode\\↑'              => realpath(__DIR__).'/Fixtures/classmap/Unicode.php',
+                'Unicode\\↑\\↑'              => realpath(__DIR__).'/Fixtures/classmap/Unicode.php',
             )),
             array(__DIR__.'/Fixtures/template', array()),
         );

tests/Composer/Test/Autoload/Fixtures/classmap/Unicode.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Unicode;
+namespace Unicode\↑;
 
 class ↑{
 }