Adding escape character (#94)

Adds a escape character to allow escaping translation strings that contain the Laravel :link keyword.

Author: gerpo

src/Generator.php

@@ -14,6 +14,7 @@ class Generator
 
     const VUEX_I18N = 'vuex-i18n';
     const VUE_I18N = 'vue-i18n';
+    const ESCAPE_CHAR = '!';
 
     /**
      * The constructor
@@ -28,6 +29,9 @@ public function __construct($config = [])
         if (!isset($config['excludes'])) {
             $config['excludes'] = [];
         }
+        if (!isset($config['escape_char'])) {
+            $config['escape_char'] = self::ESCAPE_CHAR;
+        }
         $this->config = $config;
     }
 
@@ -275,10 +279,10 @@ private function adjustArray(array $arr)
     {
         $res = [];
         foreach ($arr as $key => $val) {
-            $key = $this->adjustString($key);
+            $key = $this->removeEscapeCharacter($this->adjustString($key));
 
             if (is_string($val)) {
-                $res[$key] = $this->adjustString($val);
+                $res[$key] = $this->removeEscapeCharacter($this->adjustString($val));
             } else {
                 $res[$key] = $this->adjustArray($val);
             }
@@ -287,7 +291,7 @@ private function adjustArray(array $arr)
     }
 
     /**
-     * Adjus vendor index placement.
+     * Adjust vendor index placement.
      *
      * @param array $locales
      *
@@ -328,15 +332,35 @@ private function adjustString($s)
             $s = preg_replace($searchPipePattern, $threeColons, $s);
         }
 
+        $escaped_escape_char = preg_quote($this->config['escape_char'], '/');
         return preg_replace_callback(
-            '/(?<!mailto|tel):\w+/',
+            "/(?<!mailto|tel|{$escaped_escape_char}):\w+/",
             function ($matches) {
                 return '{' . mb_substr($matches[0], 1) . '}';
             },
             $s
         );
     }
 
+    /**
+     * Removes escape character if translation string contains sequence that looks like
+     * Laravel style ":link", but should not be interpreted as such and was therefore escaped.
+     *
+     * @param string $s
+     * @return string
+     */
+    private function removeEscapeCharacter($s)
+    {
+        $escaped_escape_char = preg_quote($this->config['escape_char'], '/');
+        return preg_replace_callback(
+            "/{$escaped_escape_char}(:\w+)/",
+            function ($matches) {
+                return mb_substr($matches[0], 1);
+            },
+            $s
+        );
+    }
+
     /**
      * Returns filename, with extension stripped
      * @param string $filename

src/config/vue-i18n-generator.php

@@ -79,4 +79,15 @@
     |
     */
     'showOutputMessages' => false,
+
+    /*
+   |--------------------------------------------------------------------------
+   | Escape character
+   |--------------------------------------------------------------------------
+   |
+   | Allows to escape translations strings that should not be treated as a
+   | variable
+   |
+   */
+    'escape_char' => '!',
 ];

tests/GenerateTest.php

@@ -246,6 +246,31 @@ function testBasicWithTranslationString()
         $this->destroyLocaleFilesFrom($arr, $root);
     }
 
+    function testBasicWithEscapedTranslationString()
+    {
+        $arr = [
+            'en' => [
+                'main' => [
+                    'hello :name' => 'Hello :name',
+                    'time test 10!:00' => 'Time test 10!:00',
+                ]
+            ],
+        ];
+
+        $root = $this->generateLocaleFilesFrom($arr);
+        $this->assertEquals(
+            'export default {' . PHP_EOL
+            . '    "en": {' . PHP_EOL
+            . '        "main": {' . PHP_EOL
+            . '            "hello {name}": "Hello {name}",' . PHP_EOL
+            . '            "time test 10:00": "Time test 10:00"' . PHP_EOL
+            . '        }' . PHP_EOL
+            . '    }' . PHP_EOL
+            . '}' . PHP_EOL,
+            (new Generator([]))->generateFromPath($root));
+        $this->destroyLocaleFilesFrom($arr, $root);
+    }
+
     function testBasicWithVendor()
     {
         $arr = [
@@ -383,6 +408,62 @@ function testNamed()
         $this->destroyLocaleFilesFrom($arr, $root);
     }
 
+    function testNamedWithEscaped()
+    {
+        $arr = [
+            'en' => [
+                'help' => [
+                    'yes' => 'see :link y :lonk at 08!:00',
+                    'no' => [
+                        'one' => 'see :link',
+                    ]
+                ]
+            ]
+        ];
+
+        $root = $this->generateLocaleFilesFrom($arr);
+
+        $this->assertEquals(
+            'export default {' . PHP_EOL
+            . '    "en": {' . PHP_EOL
+            . '        "help": {' . PHP_EOL
+            . '            "yes": "see {link} y {lonk} at 08:00",' . PHP_EOL
+            . '            "no": {' . PHP_EOL
+            . '                "one": "see {link}"' . PHP_EOL
+            . '            }' . PHP_EOL
+            . '        }' . PHP_EOL
+            . '    }' . PHP_EOL
+            . '}' . PHP_EOL,
+            (new Generator([]))->generateFromPath($root));
+
+        $this->destroyLocaleFilesFrom($arr, $root);
+    }
+
+    function testEscapedEscapeCharacter()
+    {
+        $arr = [
+            'en' => [
+                'help' => [
+                    'test escaped' => 'escaped escape char not !!:touched',
+                ]
+            ]
+        ];
+
+        $root = $this->generateLocaleFilesFrom($arr);
+
+        $this->assertEquals(
+            'export default {' . PHP_EOL
+            . '    "en": {' . PHP_EOL
+            . '        "help": {' . PHP_EOL
+            . '            "test escaped": "escaped escape char not !:touched"' . PHP_EOL
+            . '        }' . PHP_EOL
+            . '    }' . PHP_EOL
+            . '}' . PHP_EOL,
+            (new Generator([]))->generateFromPath($root));
+
+        $this->destroyLocaleFilesFrom($arr, $root);
+    }
+
     function testShouldNotTouchHtmlTags()
     {
         $arr = [