Improving parser

- Adding the ParserException Exception class to isolate Parser Exception
 the ParserException extends InvalidArgumentException so there are two ways
to catch the thrown error

- Improve URI parsing by removing all regular expressions.

.travis.yml

@@ -13,6 +13,8 @@ matrix:
     - php: hhvm
       env: COLLECT_COVERAGE=false VALIDATE_CODING_STYLE=false
   fast_finish: true
+  allow_failures:
+    - php: hhvm
 
 cache:
   directories:

README.md

@@ -35,27 +35,27 @@ This is a drop-in replacement to PHP's `parse_url` function, with the following
 use League\Uri\Parser;
 
 $parser = new Parser();
-var_dump($parser('http://[email protected]/'));
+var_export($parser('http://[email protected]/'));
 //returns the following array
-//[
-//    'scheme' => 'http',
-//    'user' => null,
-//    'pass' => null,
-//    'host' => 'foo.com',
-//    'port' => null,
-//    'path' => '',
-//    'query' => '@bar.com/',
-//    'fragment' => null,
-//];
-
-var_dump(parse_url('http://[email protected]/'));
+//array(
+//  'scheme' => 'http',
+//  'user' => null,
+//  'pass' => null,
+//  'host' => 'foo.com',
+//  'port' => null,
+//  'path' => '',
+//  'query' => '@bar.com/',
+//  'fragment' => null,
+//);
+
+var_export(parse_url('http://[email protected]/'));
 //returns the following array
-//[
-//    'scheme' => 'http',
-//    'host' => 'bar.com',
-//    'user' => 'foo.com?',
-//    'path' => '/',
-//];
+//array(
+//  'scheme' => 'http',
+//  'host' => 'bar.com',
+//  'user' => 'foo.com?',
+//  'path' => '/',
+//);
 ```
 
 - The `Parser::__invoke` method always returns all URI components.
@@ -66,26 +66,26 @@ var_dump(parse_url('http://[email protected]/'));
 use League\Uri\Parser;
 
 $parser = new Parser();
-var_dump($parser('http://www.example.com/'));
+var_export($parser('http://www.example.com/'));
 //returns the following array
-//[
-//    'scheme' => 'http',
-//    'user' => null,
-//    'pass' => null,
-//    'host' => 'www.example.com',
-//    'port' => null,
-//    'path' => '/',
-//    'query' => null,
-//    'fragment' => null,
-//];
-
-var_dump(parse_url('http://www.example.com/'));
+//array(
+//  'scheme' => 'http',
+//  'user' => null,
+//  'pass' => null,
+//  'host' => 'www.example.com',
+//  'port' => null,
+//  'path' => '/',
+//  'query' => null,
+//  'fragment' => null,
+//);
+
+var_export(parse_url('http://www.example.com/'));
 //returns the following array
-//[
-//    'scheme' => 'http',
-//    'host' => 'www.example.com',
-//    'path' => '/',
-//];
+//array(
+//  'scheme' => 'http',
+//  'host' => 'www.example.com',
+//  'path' => '/',
+//);
 ```
 
 - Accessing individual component is simple without needing extra parameters:
@@ -140,18 +140,18 @@ use League\Uri\Parser;
 
 $uri = 'http:www.example.com';
 $parser = new Parser();
-var_dump($parser($uri));
+var_export($parser($uri));
 //returns the following array
-//[
-//    'scheme' => 'http',
-//    'user' => null,
-//    'pass' => null,
-//    'host' => null,
-//    'port' => null,
-//    'path' => 'www.example.com',
-//    'query' => null,
-//    'fragment' => null,
-//];
+//array(
+//  'scheme' => 'http',
+//  'user' => null,
+//  'pass' => null,
+//  'host' => null,
+//  'port' => null,
+//  'path' => 'www.example.com',
+//  'query' => null,
+//  'fragment' => null,
+//);
 ```
 
 **This invalid HTTP URI is successfully parsed.**

benchmarks/ParserBench.php

@@ -6,7 +6,7 @@
 
 class ParserBench
 {
-    private $uri = 'ftp://cnn.example.com&[email protected]/top_story.htm';
+    private $uri = 'https://cnn.example.com&[email protected]/top_story.htm';
 
     /**
      * Baseline - comparison with parse_url

src/HostValidation.php

@@ -26,6 +26,8 @@ trait HostValidation
 {
     protected static $starting_label_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
 
+    protected static $local_link_prefix = '1111111010';
+
     /**
      * validate the host component
      *
@@ -51,7 +53,7 @@ protected function filterHost($host)
             return $host;
         }
 
-        throw new InvalidArgumentException(sprintf('The submitted host `%s` is invalid', $host));
+        throw ParserException::createFromInvalidHost($host);
     }
 
     /**
@@ -91,7 +93,7 @@ protected function isValidHostnameIpv6($ipv6)
 
         $res = array_reduce(str_split(unpack('A16', inet_pton($ipv6))[1]), $reducer, '');
 
-        return substr($res, 0, 10) === self::LOCAL_LINK_PREFIX;
+        return substr($res, 0, 10) === self::$local_link_prefix;
     }
 
     /**