composer.json

@@ -10,6 +10,7 @@
         "doctrine/doctrine-bundle": "^2.10",
         "doctrine/doctrine-migrations-bundle": "^3.2",
         "doctrine/orm": "^2.15",
+        "scrivo/highlight.php": "v9.18.1.10",
         "symfony/console": "6.3.*",
         "symfony/dotenv": "6.3.*",
         "symfony/flex": "^2",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "f716d81393aa0f266916ea52e0fa0b53",
+    "content-hash": "de2f472bb7e2d9dbd3c6363258ac286e",
     "packages": [
         {
             "name": "doctrine/cache",
@@ -1521,6 +1521,84 @@
             },
             "time": "2021-07-14T16:46:02+00:00"
         },
+        {
+            "name": "scrivo/highlight.php",
+            "version": "v9.18.1.10",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/scrivo/highlight.php.git",
+                "reference": "850f4b44697a2552e892ffe71490ba2733c2fc6e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/scrivo/highlight.php/zipball/850f4b44697a2552e892ffe71490ba2733c2fc6e",
+                "reference": "850f4b44697a2552e892ffe71490ba2733c2fc6e",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "php": ">=5.4"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8|^5.7",
+                "sabberworm/php-css-parser": "^8.3",
+                "symfony/finder": "^2.8|^3.4|^5.4",
+                "symfony/var-dumper": "^2.8|^3.4|^5.4"
+            },
+            "suggest": {
+                "ext-mbstring": "Allows highlighting code with unicode characters and supports language with unicode keywords"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "HighlightUtilities/functions.php"
+                ],
+                "psr-0": {
+                    "Highlight\\": "",
+                    "HighlightUtilities\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Geert Bergman",
+                    "homepage": "http://www.scrivo.org/",
+                    "role": "Project Author"
+                },
+                {
+                    "name": "Vladimir Jimenez",
+                    "homepage": "https://allejo.io",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "Martin Folkers",
+                    "homepage": "https://twobrain.io",
+                    "role": "Contributor"
+                }
+            ],
+            "description": "Server side syntax highlighter that supports 185 languages. It's a PHP port of highlight.js",
+            "keywords": [
+                "code",
+                "highlight",
+                "highlight.js",
+                "highlight.php",
+                "syntax"
+            ],
+            "support": {
+                "issues": "https://github.com/scrivo/highlight.php/issues",
+                "source": "https://github.com/scrivo/highlight.php"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/allejo",
+                    "type": "github"
+                }
+            ],
+            "time": "2022-12-17T21:53:22+00:00"
+        },
         {
             "name": "symfony/cache",
             "version": "v6.3.1",

public/css/ocean.css

@@ -0,0 +1,74 @@
+/* Ocean Dark Theme */
+/* https://github.com/gavsiu */
+/* Original theme - https://github.com/chriskempson/base16 */
+
+/* Ocean Comment */
+.hljs-comment,
+.hljs-quote {
+  color: #65737e;
+}
+
+/* Ocean Red */
+.hljs-variable,
+.hljs-template-variable,
+.hljs-tag,
+.hljs-name,
+.hljs-selector-id,
+.hljs-selector-class,
+.hljs-regexp,
+.hljs-deletion {
+  color: #bf616a;
+}
+
+/* Ocean Orange */
+.hljs-number,
+.hljs-built_in,
+.hljs-builtin-name,
+.hljs-literal,
+.hljs-type,
+.hljs-params,
+.hljs-meta,
+.hljs-link {
+  color: #d08770;
+}
+
+/* Ocean Yellow */
+.hljs-attribute {
+  color: #ebcb8b;
+}
+
+/* Ocean Green */
+.hljs-string,
+.hljs-symbol,
+.hljs-bullet,
+.hljs-addition {
+  color: #a3be8c;
+}
+
+/* Ocean Blue */
+.hljs-title,
+.hljs-section {
+  color: #8fa1b3;
+}
+
+/* Ocean Purple */
+.hljs-keyword,
+.hljs-selector-tag {
+  color: #b48ead;
+}
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  background: #2b303b;
+  color: #c0c5ce;
+  padding: 0.5em;
+}
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}

src/Controller/PasteController.php

@@ -4,6 +4,7 @@ declare(strict_types = 1);
 namespace App\Controller; 
 
 use App\DTO\PasteFormData; 
+use App\Entity\CodeHighlighter; 
 use App\Entity\Paste; 
 use App\Form\Type\PasteForm; 
 use App\Repository\PasteRepository; 
@@ -43,8 +44,9 @@ class PasteController extends AbstractController
         $pasteData = new PasteFormData($paste);
         $form = $this->createForm(PasteForm::class, $pasteData); 
 
-        return $this->render('paste.html.twig', [
+        return $this->render('show_paste.html.twig', [
             'form' => $form,
+            'highlighted_text' => CodeHighlighter::highlight($pasteData->language, $pasteData->text)
         ]);
     }
 }

src/Entity/CodeHighlighter.php

@@ -0,0 +1,26 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\Entity; 
+use \Highlight\Highlighter; 
+
+
+class CodeHighlighter
+{
+    public static function highlight(?string $language, string $code): string
+    {
+        $hl = new Highlighter();
+        
+        try {
+            // Highlight some code.
+            $highlighted = $hl->highlight($language, $code);
+            $highlighted_text =  "<pre><code class=\"hljs {$highlighted->language}\">".$highlighted->value.'</code></pre>';
+        }
+        catch (\DomainException $e) {
+            // This is thrown if the specified language does not exist
+            $highlighted_text = '<pre><code>'.htmlentities($code).'</code></pre>';
+        }
+
+        return $highlighted_text;
+    }
+}

templates/base.html.twig

@@ -2,15 +2,14 @@
 <html>
     <head>
         <meta charset="UTF-8">
-        <title>{% block title %}Welcome!{% endblock %}</title>
+        <title>{% block title %}Copypaste{% endblock %}</title>
         <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 128 128%22><text y=%221.2em%22 font-size=%2296%22>⚫️</text></svg>">
+        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
         {% block stylesheets %}
         {% endblock %}
-
-        {% block javascripts %}
-        {% endblock %}
     </head>
     <body>
-        {% block body %}{% endblock %}
+        {% block content %}{% endblock %}
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
     </body>
 </html>

templates/paste.html.twig

@@ -1 +1,6 @@
-{{ form(form) }}
+{% extends "base.html.twig" %}
+
+{% block content %}
+    {{ form(form) }}
+{% endblock %}
+

templates/show_paste.html.twig

@@ -0,0 +1,24 @@
+{% extends "base.html.twig" %}
+
+{% block stylesheets %}
+  <link rel="stylesheet" href="/css/ocean.css"></link>
+{% endblock %}
+
+{% block content %}
+    <ul class="nav nav-tabs" id="myTab" role="tablist">
+        <li class="nav-item" role="presentation">
+            <button class="nav-link active" id="show-tab" data-bs-toggle="tab" data-bs-target="#show" type="button" role="tab" aria-controls="show" aria-selected="true">Show</button>
+        </li>
+        <li class="nav-item" role="presentation">
+            <button class="nav-link" id="profile-tab" data-bs-toggle="tab" data-bs-target="#edit" type="button" role="tab" aria-controls="edit" aria-selected="false">Edit</button>
+        </li>
+    </ul>
+    <div class="tab-content" id="myTabContent">
+        <div class="tab-pane fade show active" id="show" role="tabpanel" aria-labelledby="show-tab">
+            {{ highlighted_text|raw }}
+        </div>
+        <div class="tab-pane fade" id="edit" role="tabpanel" aria-labelledby="edit-tab">
+            {% include 'paste.html.twig' %}
+        </div>
+    </div>
+{% endblock %}