Add Json renderer option: jsonEncodeFlags

// this option is currently only for the Json renderer.
// it controls how the output JSON is formatted.
// see availabe options on https://www.php.net/manual/en/function.json-encode.php
'jsonEncodeFlags' => \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE,

Signed-off-by: Jack Cherng <jfcherng@gmail.com>

Author: jfcherng

README.md

@@ -108,6 +108,10 @@ $rendererOptions = [
     // internally, ops (tags) are all int type but this is not good for human reading.
     // set this to "true" to convert them into string form before outputting.
     'outputTagAsString' => false,
+    // this option is currently only for the Json renderer.
+    // it controls how the output JSON is formatted.
+    // see availabe options on https://www.php.net/manual/en/function.json-encode.php
+    'jsonEncodeFlags' => \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE,
     // change this value to a string as the returned diff if the two input strings are identical
     'resultForIdenticals' => null,
     // extra HTML classes added to the DOM of the diff container

example/demo.php

@@ -76,6 +76,10 @@
             // internally, ops (tags) are all int type but this is not good for human reading.
             // set this to "true" to convert them into string form before outputting.
             'outputTagAsString' => false,
+            // this option is currently only for the Json renderer.
+            // it controls how the output JSON is formatted.
+            // see availabe options on https://www.php.net/manual/en/function.json-encode.php
+            'jsonEncodeFlags' => \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE,
             // change this value to a string as the returned diff if the two input strings are identical
             'resultForIdenticals' => null,
             // extra HTML classes added to the DOM of the diff container
@@ -237,15 +241,17 @@
             $newFile,
             'Json',
             $diffOptions,
-            ['outputTagAsString' => true] + $rendererOptions
-        );
-
-        $beautified = \json_encode(
-            \json_decode($jsonResult, true),
-            \JSON_UNESCAPED_UNICODE | \JSON_UNESCAPED_SLASHES | \JSON_PRETTY_PRINT
+            [
+                'outputTagAsString' => true,
+                'jsonEncodeFlags' => (
+                    \JSON_PRETTY_PRINT |
+                    \JSON_UNESCAPED_SLASHES |
+                    \JSON_UNESCAPED_UNICODE
+                ),
+            ] + $rendererOptions
         );
 
-        echo $beautified;
+        echo $jsonResult;
 
         ?></code></pre>
 

src/Renderer/AbstractRenderer.php

@@ -67,6 +67,10 @@ abstract class AbstractRenderer implements RendererInterface
         // internally, ops (tags) are all int type but this is not good for human reading.
         // set this to "true" to convert them into string form before outputting.
         'outputTagAsString' => false,
+        // this option is currently only for the Json renderer.
+        // it controls how the output JSON is formatted.
+        // see availabe options on https://www.php.net/manual/en/function.json-encode.php
+        'jsonEncodeFlags' => \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE,
         // change this value to a string as the returned diff if the two input strings are identical
         'resultForIdenticals' => null,
         // extra HTML classes added to the DOM of the diff container

src/Renderer/Html/Json.php

@@ -41,10 +41,7 @@ protected function redererChanges(array $changes): string
             $this->convertTagToString($changes);
         }
 
-        return \json_encode(
-            $changes,
-            \JSON_UNESCAPED_UNICODE | \JSON_UNESCAPED_SLASHES
-        );
+        return \json_encode($changes, $this->options['jsonEncodeFlags']);
     }
 
     /**