support categories and fix for 51CTO

Author: wixun111

src/markdown.js

@@ -103,6 +103,13 @@ export const formatMarkdownBody = (container, selectors, options, exec) => {
         })
         options.context.tag = tag
     }
+    if (selectors.categories) {
+        const categories = []
+        queryAll(selectors.categories).map(item => {
+            categories.push(item.innerText.replace(/(^[\n\s]+|[\n\s]+$)/g, ''))
+        })
+        options.context.categories = categories
+    }
     if (options.link) {
         queryAll('a', markdownBody).map(item => item.href = item.title)
     }
@@ -147,6 +154,7 @@ const extract = async ({ markdownBody, selectors, options, exec, hook }) => {
         author: getText(selectors.userName),
         home: getUrl(location.origin, getAttribute('href', selectors.userLink)),
         tag: context.tag,
+        categories: context.categories,
         description: markdownBody.innerText.replace(/^([\n\s]+)/g, '').replace(/\n/g, ' ').slice(0, 50) + '...',
     }, localOptions.tpl)
     const markdownDoc = html2markdown(info + getMarkdown(markdownBody), {})

src/websites/51CTO.js

@@ -10,10 +10,11 @@ export const options = {
         body: '.editor-preview-side',
         copyBtn: '.copy-btn',
         userName: '.username .blog-user',
-        userLink: '.username',
+        userLink: '.avatar-img',
         invalid: '',
         unpack: '',
-        tag: '.mess-tag .shence_tag'
+        tag: '.mess-tag .shence_tag',
+        categories: '.mess-tag .shence_cate'
     }
 }