add digit method (#24)

* add digit method

* composer bootstrap should not be fixed with php-cs-fixer

* add digit unit test

* php-cs-fixer must be a dev-dependency (no need in prod env)

Author: ronfroy

.gitignore

@@ -1,3 +1,4 @@
 /vendor
 composer.lock
 /phpunit/
+.idea/

.travis.yml

@@ -11,4 +11,4 @@ before_script:
   - composer install
 script:
   - vendor/bin/php-cs-fixer fix --level=psr2 --dry-run src
-  - vendor/bin/php-cs-fixer fix --level=psr2 --dry-run tests
+  - vendor/bin/php-cs-fixer fix --level=psr2 --dry-run tests/VerbalExpressionsTest.php

composer.json

@@ -4,11 +4,11 @@
     "type": "project",
     "description": "PHP Regular expressions made easy",
     "require": {
-        "php": ">=5.3",
-        "fabpot/php-cs-fixer": "^1.11"
+        "php": ">=5.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "* >=4"
+        "phpunit/phpunit": "* >=4",
+        "fabpot/php-cs-fixer": "^1.11"
     },
     "suggest": {
         "fabpot/php-cs-fixer": "PHP CS Fixer (testing for PSR-2 compliance)"

src/VerbalExpressions.php

@@ -247,6 +247,19 @@ public function word()
         return $this->add('\\w+');
     }
 
+    /**
+     * Digit
+     *
+     * Match any digit
+     *
+     * @access public
+     * @return VerbalExpressions
+     */
+    public function digit()
+    {
+        return $this->add('\\d');
+    }
+    
     /**
      * List Chars
      *

tests/VerbalExpressionsTest.php

@@ -254,6 +254,19 @@ public function testWord()
         $this->assertFalse($regex->test('a!b'));
     }
 
+
+    public function testDigit()
+    {
+        $regex = new VerbalExpressions();
+        $regex->digit();
+
+        $this->assertTrue($regex->test('0123456789'));
+
+        foreach (str_split('ABCDEFGHIJKLMNOPQRSTUVWXYZ_-@,./%*') as $char) {
+            $this->assertFalse($regex->test($char), 'Should not match digit ('.$char.')');
+        }
+    }
+
     public function testAny()
     {
         $regex = new VerbalExpressions();