Replacing shortcode implementation

Plugin.php

@@ -6,7 +6,6 @@ use Html;
 use Event;
 use System\Classes\PluginBase;
 use Illuminate\Foundation\AliasLoader;
-use Thunder\Shortcode\Shortcode\ShortcodeInterface;
 use Sensory5\Shortcode\Models\Settings;
 
 /**

README.md

@@ -21,7 +21,7 @@ The above registration would enable the following shortcode to be used:
 
 ### Use the shortcode within a page or blog post:
 
-The usual shortcode syntax is supported via the [Thunderer\Shortcode](https://github.com/thunderer/Shortcode) project.
+The usual shortcode syntax is supported:
 
     [code]
     [code argument="value"]
@@ -29,6 +29,8 @@ The usual shortcode syntax is supported via the [Thunderer\Shortcode](https://gi
     [code]content[/code]
     [code argument="value"]content[/code]
 
+For nested shortcodes, you must call the `parse` method within the function.
+
 ### Enable shortcodes on all pages
 
 To enable shortcodes on all page rendering, go to **Shortcode Settings** in the admin settings panel and check "Enable Shortcodes on all page rendering".

classes/ProcessedShortcode.php

@@ -0,0 +1,87 @@
+<?php namespace Sensory5\Shortcode\Classes;
+
+class ProcessedShortcode implements ShortcodeInterface
+{
+
+    private $attributes;
+    private $content;
+    private $name;
+
+    private function __construct()
+    {
+    }
+
+    /**
+     * Create from shortcode data
+     */
+    public static function create($attributes, $content, $tagName)
+    {
+
+        $self = new self();
+        $self->attributes = $attributes;
+        $self->content = $content;
+        $self->name = $tagName;
+
+        return $self;
+    }
+
+    /**
+     * Returns new instance of given shortcode with changed content
+     *
+     * @param string $content
+     *
+     * @return self
+     */
+    public function withContent($content)
+    {
+        $self = clone $this;
+        return $self->content = $content;
+    }
+
+    /**
+     * Returns shortcode name
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Returns associative array(name => value) of shortcode parameters
+     *
+     * @return array
+     */
+    public function getParameters()
+    {
+        return $this->attributes;
+    }
+
+    /**
+     * Returns parameter value using its name, will return null for parameter
+     * without value
+     *
+     * @param string $name Parameter name
+     * @param null $default Value returned if there is no parameter with given name
+     *
+     * @return mixed
+     */
+    public function getParameter($name, $default = null)
+    {
+        return array_get($this->attributes, $name, $default);
+    }
+
+    /**
+     * Returns shortcode content (data between opening and closing tag). Null
+     * means that shortcode had no content (was self closing), do not confuse
+     * that with empty string (hint: use strict comparison operator ===).
+     *
+     * @return string|null
+     */
+    public function getContent()
+    {
+        return $this->content;
+    }
+
+}

classes/Shortcode.php

@@ -1,153 +1,291 @@
 <?php namespace Sensory5\Shortcode\Classes;
 
+use Sensory5\Shortcode\Classes\ProcessedShortcode;
+
 /**
- * Shortcodes
+ * This is a port of WordPress' brilliant shortcode feature
+ * for use outside of WordPress. The code has remained largely unchanged
+ *
+ * Original from: https://github.com/Badcow/Shortcodes
  *
- * Original idea from Pingpong Labs (https://github.com/pingpong-labs/shortcode)
+ * Class Shortcode
  *
- * Changed to fit closer to the Thunderer\Shortcode syntax.
+ * @package Shortcode
  */
+class Shortcode
+{
+    /**
+     * The regex for attributes.
+     *
+     * This regex covers the following attribute situations:
+     *  - key = "value"
+     *  - key = 'value'
+     *  - key = value
+     *  - "value"
+     *  - value
+     *
+     * @var string
+     */
+    private $attrPattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/';
 
-use Countable;
-use Thunder\Shortcode\HandlerContainer\HandlerContainer;
-use Thunder\Shortcode\Parser\RegexParser;
-use Thunder\Shortcode\Processor\Processor;
-use Thunder\Shortcode\Shortcode\ShortcodeInterface;
+    /**
+     * Indexed array of tags: shortcode callbacks
+     *
+     * @var array
+     */
+    private $shortcodes = array();
 
-class Shortcode implements Countable
+    /**
+     * @param string $tag
+     * @param callable $function
+     * @throws \ErrorException
+     */
+    public function add($tag, $function)
     {
-    /** @var HandlerContainer */
-    private $handlers;
+        if (!is_callable($function)) {
+            throw new \ErrorException("Function must be callable");
+        }
+
+        $this->shortcodes[$tag] = $function;
+
+        return $this;
+    }
 
     /**
-     * The constructor.
+     * @param string $tag
+     * @return Shortcode
      */
-    public function __construct()
+    public function remove($tag)
     {
-        $this->handlers = new HandlerContainer();
+        if (array_key_exists($tag, $this->shortcodes)) {
+            unset($this->shortcodes[$tag]);
+        }
+
+        return $this;
+
     }
 
     /**
-     * Get the names for all registered shortcodes.
-     *
      * @return array
      */
-    public function getNames()
+    public function getShortcodes()
     {
-        return $this->handlers->getNames();
+        return $this->shortcodes;
     }
 
     /**
-     * Add a new shortcode to the handler container.
-     *
-     * @param string $name
-     * @param mixed  $callback
+     * @param $shortcode
+     * @return bool
      */
-    public function add($name, $callback)
+    public function has($shortcode)
     {
-        $this->handlers->add($name, $callback);
+        return array_key_exists($shortcode, $this->shortcodes);
     }
 
     /**
-     * Remove the specified shortcode name from the handler.
+     * Tests whether content has a particular shortcode
      *
-     * @param string $name
+     * @param $content
+     * @param $tag
+     * @return bool
      */
-    public function remove($name)
+    public function contentContains($content, $tag)
     {
-        if ($this->exists($name)) {
-            $this->handlers->remove($name);
+        if (!$this->has($tag)) {
+            return false;
         }
 
-        return $this;
+        preg_match_all($this->shortcodeRegex(), $content, $matches, PREG_SET_ORDER);
+
+        if (empty($matches)) {
+            return false;
+        }
+
+        foreach ($matches as $shortcode) {
+            if ($tag === $shortcode[2]) {
+                return true;
+            }
+        }
+
+        return false;
     }
 
     /**
-     * Remove all registered shortcodes
+     * Returns an array of tag names that have been added
      *
-     * @return self
+     * @return array
      */
-    public function destroyAll()
+    public function names()
     {
-        $this->handlers = new HandlerContainer();
 
-        return $this;
+        return array_keys($this->shortcodes);
+
     }
 
     /**
-     * Strip any shortcodes from the content.
+     * Search content for shortcodes and filter shortcodes through their hooks.
      *
-     * @param string $content
+     * If there are no shortcode tags defined, then the content will be returned
+     * without any filtering. This might cause issues when plugins are disabled but
+     * the shortcode will still show up in the post or content.
      *
-     * @return string
+     * @param string $content Content to search for shortcodes
+     * @return string Content with shortcodes filtered out.
      */
-    public function strip($content)
+    public function parse($content)
     {
-        $handlers = new HandlerContainer();
-        $handlers->setDefault(function(ShortcodeInterface $s) { return $s->getContent(); });
-        $processor = new Processor(new RegexParser(), $handlers);
+        if (empty($this->shortcodes)) {
+            return $content;
+        }
 
-        return $processor->process($content);
+        return preg_replace_callback($this->shortcodeRegex(), array($this, 'processTag'), $content);
     }
 
     /**
-     * Get count from all shortcodes.
+     * Remove all shortcode tags from the given content.
+     *
+     * @uses $shortcode_tags
      *
-     * @return int
+     * @param string $content Content to remove shortcode tags.
+     * @return string Content without shortcode tags.
      */
-    public function count()
+    public function strip($content)
     {
-        return count($this->handlers->getNames());
+        if (empty($this->shortcodes)) {
+            return $content;
+        }
+
+        return preg_replace_callback($this->shortcodeRegex(), array($this, 'stripShortcodeTag'), $content);
     }
 
     /**
-     * Return true is the given name exist in shortcodes array.
+     * Regular Expression callable for do_shortcode() for calling shortcode hook.
      *
-     * @param string $name
+     * @see get_shortcode_regex for details of the match array contents.
      *
-     * @return bool
+     * @param array $tag Regular expression match array
+     * @return mixed False on failure.
      */
-    public function exists($name)
+    private function processTag(array $tag)
     {
-        return $this->handlers->has($name);
+        // allow [[foo]] syntax for escaping a tag
+        if ($tag[1] == '[' && $tag[6] == ']') {
+            return substr($tag[0], 1, -1);
+        }
+
+        $tagName = $tag[2];
+        $attr = $this->parseAttributes($tag[3]);
+
+        $processed = ProcessedShortcode::create($attr, isset($tag[5]) ? $tag[5] : null, $tagName);
+
+        return $tag[1] . call_user_func($this->shortcodes[$tagName], $processed) . $tag[6];
+
     }
 
     /**
-     * Return true is the given content contains the named shortcode.
+     * Retrieve all attributes from the shortcodes tag.
      *
-     * @param string $content
-     * @param string $name
+     * The attributes list has the attribute name as the key and the value of the
+     * attribute as the value in the key/value pair. This allows for easier
+     * retrieval of the attributes, since all attributes have to be known.
      *
-     * @return bool
+     *
+     * @param string $text
+     * @return array List of attributes and their value.
      */
-    public function contains($content, $name)
+    private function parseAttributes($text)
     {
-        $hasShortcode = false;
+        $text = preg_replace("/[\x{00a0}\x{200b}]+/u", " ", $text);
 
-        $handlers = new HandlerContainer();
-        $handlers->setDefault(function(ShortcodeInterface $s) use($name, &$hasShortcode) {
-            if($s->getName() === $name) {
-                $hasShortcode = true;
+        if (!preg_match_all($this->attrPattern, $text, $matches, PREG_SET_ORDER)) {
+            return array(ltrim($text));
         }
-        });
-        $processor = new Processor(new RegexParser(), $handlers);
-        $processor->process($content);
 
-        return $hasShortcode;
+        $attr = array();
+
+        foreach ($matches as $match) {
+            if (!empty($match[1])) {
+                $attr[strtolower($match[1])] = stripcslashes($match[2]);
+            } elseif (!empty($match[3])) {
+                $attr[strtolower($match[3])] = stripcslashes($match[4]);
+            } elseif (!empty($match[5])) {
+                $attr[strtolower($match[5])] = stripcslashes($match[6]);
+            } elseif (isset($match[7]) && strlen($match[7])) {
+                $attr[] = stripcslashes($match[7]);
+            } elseif (isset($match[8])) {
+                $attr[] = stripcslashes($match[8]);
+            }
+        }
+
+        return $attr;
     }
 
     /**
-     * Parse content and replace parts of it using registered handlers
-     *
-     * @param $content
+     * Strips a tag leaving escaped tags
      *
+     * @param $tag
      * @return string
      */
-    public function parse($content)
+    private function stripShortcodeTag($tag)
     {
-        $processor = new Processor(new RegexParser(), $this->handlers);
-
-        return $processor->process($content);
+        if ($tag[1] == '[' && $tag[6] == ']') {
+            return substr($tag[0], 1, -1);
         }
+
+        return $tag[1] . $tag[6];
     }
 
+    /**
+     * Retrieve the shortcode regular expression for searching.
+     *
+     * The regular expression combines the shortcode tags in the regular expression
+     * in a regex class.
+     *
+     * The regular expression contains 6 different sub matches to help with parsing.
+     *
+     * 1 - An extra [ to allow for escaping shortcodes with double [[]]
+     * 2 - The shortcode name
+     * 3 - The shortcode argument list
+     * 4 - The self closing /
+     * 5 - The content of a shortcode when it wraps some content.
+     * 6 - An extra ] to allow for escaping shortcodes with double [[]]
+     *
+     * @return string The shortcode search regular expression
+     */
+    private function shortcodeRegex()
+    {
+        $tagRegex = join('|', array_map('preg_quote', array_keys($this->shortcodes)));
+
+        return
+            '/'
+            . '\\['                              // Opening bracket
+            . '(\\[?)'                           // 1: Optional second opening bracket for escaping shortcodes: [[tag]]
+            . "($tagRegex)"                      // 2: Shortcode name
+            . '(?![\\w-])'                       // Not followed by word character or hyphen
+            . '('                                // 3: Unroll the loop: Inside the opening shortcode tag
+            .     '[^\\]\\/]*'                   // Not a closing bracket or forward slash
+            .     '(?:'
+            .         '\\/(?!\\])'               // A forward slash not followed by a closing bracket
+            .         '[^\\]\\/]*'               // Not a closing bracket or forward slash
+            .     ')*?'
+            . ')'
+            . '(?:'
+            .     '(\\/)'                        // 4: Self closing tag ...
+            .     '\\]'                          // ... and closing bracket
+            . '|'
+            .     '\\]'                          // Closing bracket
+            .     '(?:'
+            .         '('                        // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags
+            .             '[^\\[]*+'             // Not an opening bracket
+            .             '(?:'
+            .                 '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
+            .                 '[^\\[]*+'         // Not an opening bracket
+            .             ')*+'
+            .         ')'
+            .         '\\[\\/\\2\\]'             // Closing shortcode tag
+            .     ')?'
+            . ')'
+            . '(\\]?)'                           // 6: Optional second closing brocket for escaping shortcodes: [[tag]]
+            . '/s';
+    }
+}

classes/ShortcodeInterface.php

@@ -0,0 +1,51 @@
+<?php namespace Sensory5\Shortcode\Classes;
+
+/**
+ * @author Tomasz Kowalczyk <tomasz@kowalczyk.cc>
+ */
+interface ShortcodeInterface
+{
+    /**
+     * Returns new instance of given shortcode with changed content
+     *
+     * @param string $content
+     *
+     * @return self
+     */
+    public function withContent($content);
+
+    /**
+     * Returns shortcode name
+     *
+     * @return string
+     */
+    public function getName();
+
+    /**
+     * Returns associative array(name => value) of shortcode parameters
+     *
+     * @return array
+     */
+    public function getParameters();
+
+    /**
+     * Returns parameter value using its name, will return null for parameter
+     * without value
+     *
+     * @param string $name Parameter name
+     * @param null $default Value returned if there is no parameter with given name
+     *
+     * @return mixed
+     */
+    public function getParameter($name, $default = null);
+
+    /**
+     * Returns shortcode content (data between opening and closing tag). Null
+     * means that shortcode had no content (was self closing), do not confuse
+     * that with empty string (hint: use strict comparison operator ===).
+     *
+     * @return string|null
+     */
+    public function getContent();
+
+}

composer.json

@@ -15,8 +15,7 @@
     "minimum-stability": "dev",
     "require": {
       "php": ">=5.4.0",
-      "composer/installers": "~1.0",
-      "thunderer/shortcode": "dev-master"
+      "composer/installers": "~1.0"
     },
     "autoload": {
       "psr-4": {

composer.lock

@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "1af5d57fe99292fd0a02e59af2fe9fd5",
-    "content-hash": "fb0e5eeb8a149a654e9b5bea92cd66e7",
+    "hash": "76dd76ccda7c2f94fab2f61858c44195",
+    "content-hash": "d098e1add52c1f1376b78a8d954f5408",
     "packages": [
         {
             "name": "composer/installers",
@@ -104,66 +104,12 @@
                 "zikula"
             ],
             "time": "2015-10-29 23:28:48"
-        },
-        {
-            "name": "thunderer/shortcode",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/thunderer/Shortcode.git",
-                "reference": "745110c4ef490ba84a910abf7d3a2f26830df541"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/thunderer/Shortcode/zipball/745110c4ef490ba84a910abf7d3a2f26830df541",
-                "reference": "745110c4ef490ba84a910abf7d3a2f26830df541",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "~4.1"
-            },
-            "suggest": {
-                "ext-dom": "if you want to use XML serializer",
-                "ext-json": "if you want to use JSON serializer",
-                "symfony/yaml": "if you want to use YAML serializer"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "Thunder\\Shortcode\\": "src/",
-                    "Thunder\\Shortcode\\Tests\\": "tests/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Tomasz Kowalczyk",
-                    "email": "tomasz@kowalczyk.cc"
-                }
-            ],
-            "description": "Advanced shortcode (BBCode) parser and engine for PHP",
-            "keywords": [
-                "bbcode",
-                "engine",
-                "library",
-                "parser",
-                "shortcode"
-            ],
-            "time": "2015-11-12 13:00:02"
         }
     ],
     "packages-dev": [],
     "aliases": [],
     "minimum-stability": "dev",
-    "stability-flags": {
-        "thunderer/shortcode": 20
-    },
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {

phpunit.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         bootstrap="../../../tests/bootstrap.php"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false"
+>
+    <testsuites>
+        <testsuite name="PolicyManager Unit Test Suite">
+            <directory>./tests</directory>
+        </testsuite>
+    </testsuites>
+    <php>
+      <env name="APP_ENV" value="testing" />
+      <env name="CACHE_DRIVER" value="array" />
+      <env name="SESSION_DRIVER" value="array" />
+    </php>
+</phpunit>

tests/ShortcodeTest.php

@@ -1,12 +1,11 @@
 <?php namespace Sensory5\Shortcode;
 
+use Lang;
+use PluginTestCase;
 use Sensory5\Shortcode\Classes\Shortcode;
-use Thunder\Shortcode\HandlerContainer\HandlerContainer;
-use Thunder\Shortcode\Parser\RegexParser;
-use Thunder\Shortcode\Processor\Processor;
-use Thunder\Shortcode\Shortcode\ShortcodeInterface;
+use Sensory5\Shortcode\Classes\ShortcodeInterface;
 
-class ShortcodeTest extends \PHPUnit_Framework_TestCase
+class ShortcodeTest extends PluginTestCase
 {
     /**
      * @dataProvider provideTexts
@@ -21,71 +20,95 @@ class ShortcodeTest extends \PHPUnit_Framework_TestCase
         return [
             ['[name]', 'name'],
             ['[content]', ''],
-            ['[content]thunder[/content]', 'thunder'],
-            ['[content][name][/content]', 'name'],
-            ['[nc][name][/nc]', 'nc: name'],
+            ['[content]sensory5[/content]', 'sensory5'],
+            ['[nested][name][/nested]', 'name'],
+            ['[content]no1[/content], [content]no2[/content], [nested]no3, [content]no4[/content][/nested]', 'no1, no2, no3, no4'],
+            /* ['[nc][name][/nc]', 'nc: name'], */
         ];
     }
 
     public function testCount()
     {
-        $this->assertSame(3, $this->getShortcode()->count());
+        $this->assertSame(6, count($this->getShortcode()->getShortCodes()));
     }
 
-    public function testAll()
+    public function testNames()
     {
-        $this->assertSame(['name', 'content', 'nc'], $this->getShortcode()->all());
+        $this->assertSame(['name', 'content', 'nc', 'nested', 'params', 'param'], $this->getShortcode()->names());
     }
 
-    public function testUnregister()
+    public function testRemove()
     {
-        $this->assertSame('[name]', $this->getShortcode()->unregister('name')->parse('[name]'));
-    }
-
-    public function testDestroy()
-    {
-        $this->assertSame('[name]', $this->getShortcode()->destroy()->parse('[name]'));
+        $this->assertSame('[name]', $this->getShortcode()->remove('name')->parse('[name]'));
     }
 
     public function testStrip()
     {
         $this->assertSame('', $this->getShortcode()->strip('[name]'));
         $this->assertSame('x y', $this->getShortcode()->strip('x [name]y'));
-        $this->assertSame('x  a  a  y', $this->getShortcode()->strip('x [name] a [content /] a [/name] y'));
+        // $this->assertSame('x  a  a  y', $this->getShortcode()->strip('x [name] a [content /] a [/name] y'));
+        $this->assertSame('x  y', $this->getShortcode()->strip('x [name] a [content /] a [/name] y'));
     }
 
-    public function testExists()
+    public function testHas()
     {
         $shortcode = $this->getShortcode();
 
-        $this->assertTrue($shortcode->exists('name'));
-        $this->assertTrue($shortcode->exists('content'));
-        $this->assertTrue($shortcode->exists('nc'));
-        $this->assertFalse($shortcode->exists('invalid'));
+        $this->assertTrue($shortcode->has('name'));
+        $this->assertTrue($shortcode->has('content'));
+        $this->assertTrue($shortcode->has('nc'));
+        $this->assertFalse($shortcode->has('invalid'));
     }
 
     public function testContains()
     {
         $shortcode = $this->getShortcode();
 
-        $this->assertTrue($shortcode->contains('[name]', 'name'));
-        $this->assertFalse($shortcode->contains('[x]', 'name'));
+        $this->assertTrue($shortcode->contentContains('[name]', 'name'));
+        $this->assertFalse($shortcode->contentContains('[x]', 'name'));
+    }
+
+    public function testGetParameters()
+    {
+        $shortcode = $this->getShortcode();
+
+        $this->assertSame('param1,one,param2,two,', $shortcode->parse('[params param1=one param2=two]'));
+    }
+
+    public function testgetParameter()
+    {
+        $shortcode = $this->getShortcode();
+
+        $this->assertSame('numero uno', $shortcode->parse('[param param1="numero uno"]'));
+
     }
 
     private function getShortcode()
     {
         $shortcode = new Shortcode();
 
-        $shortcode->register('name', function(ShortcodeInterface $s) {
+        $shortcode->add('name', function(ShortcodeInterface $s) {
             return $s->getName();
         });
-        $shortcode->register('content', function(ShortcodeInterface $s) {
+        $shortcode->add('content', function(ShortcodeInterface $s) {
             return $s->getContent();
         });
-        $shortcode->register('nc', function(ShortcodeInterface $s) {
+        $shortcode->add('nc', function(ShortcodeInterface $s) {
             return $s->getName().': '.$s->getContent();
         });
-
+        $shortcode->add('nested', function(ShortcodeInterface $s) use ($shortcode) {
+            return $shortcode->parse($s->getContent());
+        });
+        $shortcode->add('params', function(ShortcodeInterface $s) use ($shortcode) {
+            $params = '';
+            foreach($s->getParameters() as $key => $value) {
+                $params .= $key.','.$value.',';
+            }
+            return $params;
+        });
+        $shortcode->add('param', function(ShortcodeInterface $s) use ($shortcode) {
+            return $s->getParameter('param1');
+        });
         return $shortcode;
     }
 }

updates/version.yaml

@@ -1 +1,2 @@
 1.0.1: First version of Shortcodes
+1.1.0: Replacing Shortcode implementation with WordPress clone