From 58a8f8c4147782f6d8719abb00cfd91323688ec1 Mon Sep 17 00:00:00 2001
From: Mimi <1119186082@qq.com>
Date: Fri, 25 Nov 2022 20:27:08 +0800
Subject: [PATCH] feat(tags/img): support quotes in img title and alt (#5112)

---
 lib/plugins/tag/img.js   |  8 ++++++--
 test/scripts/tags/img.js | 22 ++++++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/lib/plugins/tag/img.js b/lib/plugins/tag/img.js
index 5b913beeda..0a1ef7073e 100644
--- a/lib/plugins/tag/img.js
+++ b/lib/plugins/tag/img.js
@@ -3,7 +3,8 @@
 const { htmlTag, url_for } = require('hexo-util');
 
 const rUrl = /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=+$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=+$,\w]+@)[A-Za-z0-9.-]+)((?:\/[+~%/.\w-_]*)?\??(?:[-+=&;%@.\w_]*)#?(?:[.!/\\w]*))?)/;
-const rMeta = /["']?([^"']+)?["']?\s*["']?([^"']+)?["']?/;
+const rMetaDoubleQuote = /"?([^"]+)?"?/;
+const rMetaSingleQuote = /'?([^']+)?'?/;
 
 /**
 * Image tag
@@ -38,7 +39,10 @@ module.exports = ctx => {
         }
       }
 
-      const match = rMeta.exec(args.join(' '));
+      const meta = args.join(' ');
+      const rMetaTitle = meta.startsWith('"') ? rMetaDoubleQuote : rMetaSingleQuote;
+      const rMetaAlt = meta.endsWith('"') ? rMetaDoubleQuote : rMetaSingleQuote;
+      const match = new RegExp(`${rMetaTitle.source}\\s*${rMetaAlt.source}`).exec(meta);
 
       // Find image title and alt
       if (match != null) {
diff --git a/test/scripts/tags/img.js b/test/scripts/tags/img.js
index 30a8cfa53a..7030c92a41 100644
--- a/test/scripts/tags/img.js
+++ b/test/scripts/tags/img.js
@@ -127,4 +127,26 @@ describe('img', () => {
     $('img').attr('title').should.eql('Place Kitten');
     $('img').attr('alt').should.eql('A cute kitten');
   });
+
+  it('single quote in double quote', () => {
+    const $ = cheerio.load(img('left https://placekitten.com/200/300 200 300 "Place Kitten" "A \'cute\' kitten"'.split(' ')));
+
+    $('img').attr('src').should.eql('https://placekitten.com/200/300');
+    $('img').attr('class').should.eql('left');
+    $('img').attr('width').should.eql('200');
+    $('img').attr('height').should.eql('300');
+    $('img').attr('title').should.eql('Place Kitten');
+    $('img').attr('alt').should.eql('A \'cute\' kitten');
+  });
+
+  it('double quote in single quote', () => {
+    const $ = cheerio.load(img('left https://placekitten.com/200/300 200 300 "Place Kitten" \'A "cute" kitten\''.split(' ')));
+
+    $('img').attr('src').should.eql('https://placekitten.com/200/300');
+    $('img').attr('class').should.eql('left');
+    $('img').attr('width').should.eql('200');
+    $('img').attr('height').should.eql('300');
+    $('img').attr('title').should.eql('Place Kitten');
+    $('img').attr('alt').should.eql('A "cute" kitten');
+  });
 });