Ticket #35293: 35293.2.diff

Gruntfile.js

@@ -591 +591 @@
                                 dest: '.'
                         }
                 },
+                replace: {
+                        emojiRegex: {
+                                options: {
+                                        patterns: [
+                                                {
+                                                        match: /\/\/ START: emoji regex[\S\s]*\/\/ END: emoji regex/g,
+                                                        replacement: function () {
+                                                                var twemoji = grunt.file.read( SOURCE_DIR + 'wp-includes/js/twemoji.js' );
+                                                                var found = twemoji.match( /re = \/(.*)\/g,/ );
+                                                                var emojiRegex = found[1];
+
+                                                                // Magically transform emojiRegex into a PHP-friendly regex here.
+
+                                                                return "// START: emoji regex\n\treturn 'lol';\n\t// END: emoji regex";
+                                                        }
+                                                }
+                                        ]
+                                },
+                                files: [
+                                        {
+                                                expand: true,
+                                                flatten: true,
+                                                src: [
+                                                        SOURCE_DIR + 'wp-includes/formatting.php'
+                                                ],
+                                                dest: SOURCE_DIR + 'wp-includes/'
+                                        }
+                                ]
+                        }
+                },
                 _watch: {
                         all: {
                                 files: [
@@ -687 +717 @@
                 'phpunit'
         ] );
 
+        grunt.registerTask( 'precommit:emoji', [
+                'replace:emojiRegex'
+        ] );
+
         grunt.registerTask( 'precommit', 'Runs test and build tasks in preparation for a commit', function() {
                 var done = this.async();
                 var map = {
@@ -752 +786 @@
                                                         taskList.push( 'precommit:' + extension );
                                                 }
                                         } );
+
+                                        if ( [ 'twemoji.js' ].some( testPath ) ) {
+                                                grunt.log.writeln( 'twemoji.js has updated. Running `precomitt:emoji.' );
+                                                taskList.push( 'precommit:emoji' );
+                                        }
                                 }
 
                                 grunt.task.run( taskList );

package.json

@@ -27 +27 @@
     "grunt-legacy-util": "^0.2.0",
     "grunt-patch-wordpress": "~0.4.0",
     "grunt-postcss": "~0.7.1",
+    "grunt-replace": "~1.0.1",
     "grunt-rtlcss": "~2.0.1",
     "grunt-sass": "~1.1.0",
     "matchdep": "~1.0.0"

src/wp-includes/formatting.php

@@ -5209 +5209 @@
 }
 
 /**
+ * Returns a regex string to match all emoji that WordPress recognises.
+ *
+ * This regex is automatically built from the regex in twemoji.js - if it needs to be updated,
+ * you should update the regex there, then run the `grunt precommit:emoji` job.
+ *
+ * @since 4.6.0
+ *
+ * @return string A regex to match all emoji that WordPress recognises.
+ */
+function wp_emoji_regex() {
+        // Do not remove the START/END comments - they're used to find where to insert the regex.
+
+        // START: emoji regex
+        return 'lol';
+        // END: emoji regex
+}
+
+/**
  * Shorten a URL, to be used as link text.
  *
  * @since 1.2.0