style: Format and optimize code

scripts/filters/external-link.js

@@ -15,10 +15,12 @@ hexo.extend.filter.register('after_post_render', function (data) {
   var url = require('url');
   var config = this.config;
   var siteHost = url.parse(config.url).hostname || config.url;
+  // Match only a tags that don't contain html children.
+  var regPureATag = /<a([^>]*)href="([^"]*)"([^>]*)>([^<]*)<\/a>/gim;
 
   data.content = data.content.replace(
-    /(<a([^>]*)href="([^"]*)"([^>]*)>([^<]*)<\/a>)/gim,
-    function (match, all, attrBegin, href, attrEnd, html) {
+    regPureATag,
+    function (match, attrBegin, href, attrEnd, html) {
       // Exit if the href attribute doesn't exists.
       if (!href) {
         return match;
@@ -30,25 +32,6 @@ hexo.extend.filter.register('after_post_render', function (data) {
         return match;
       };
 
-      var attrOther = attrBegin + attrEnd;
-      var className = '';
-
-      attrOther.split(/\s/gim).forEach(attr => {
-        var nAttr = attr.replace(/["']*/gim, '');
-        var aKey = (nAttr.split('=')[0] || '').trim();
-        var aValue = (nAttr.split('=')[1] || '').trim();
-
-        if (aKey === 'class') {
-          className = aValue;
-        }
-      });
-
-      // Exit if the class name is in whitelist.
-      var whiteList = ['friends-plugin__item'];
-      if (className && whiteList.includes(className)) {
-        return match;
-      }
-
       var fa_prefix = theme.fa_prefix || 'fa';
       return (
         '<span class="external-link">' +

scripts/filters/lazyload.js

@@ -28,9 +28,11 @@ hexo.extend.filter.register('after_post_render', function (data) {
         placeholder = loadingBlock;
       }
 
+      var className = `lazyload lazyload-${phClassName}`;
       return `
-        <img ${attrBegin} class="lazyload lazyload-${phClassName}"
-          src="${placeholder}" data-src="${src}" ${attrEnd}>`;
+        <img ${attrBegin} class="${className}"
+          src="${placeholder}" data-src="${src}" ${attrEnd}>
+      `;
     }
   );
 }, 1);

scripts/filters/post-heading.js

@@ -19,10 +19,10 @@ hexo.extend.filter.register('after_post_render', function (data) {
         return match;
       }
 
-      var newHtml = (html.replace(/<[^>]+>/gim, '') || '').trim();
+      var filterHtml = (html.replace(/<[^>]+>/gim, '') || '').trim();
       return `
         <h2 ${attrBegin} id="${id}" ${attrEnd}>
-          <span class="heading-link">${newHtml}</span>
+          <span class="heading-link">${filterHtml}</span>
         </h2>
       `;
     }

scripts/filters/resize-img.js

@@ -30,7 +30,10 @@ hexo.extend.filter.register('after_post_render', function (data) {
       var w = size.split(MULTIPLY_SIGN)[0];
       var h = size.split(MULTIPLY_SIGN)[1];
       var style = '';
-      
+
+      if (!w || !h) {
+        return;
+      }
       if (w) {
         style += `width: ${w}px;`;
       }
@@ -38,9 +41,7 @@ hexo.extend.filter.register('after_post_render', function (data) {
         style += `height: ${h}px;`;
       }
 
-      var attr1 = attrBegin.trim();
-      var attr2 = attrEnd.trim();
-      return `<img ${attr1} src="${src}" style="${style}" ${attr2}>`;
+      return `<img ${attrBegin} src="${src}" style="${style}" ${attrEnd}>`;
     }
   );
 }, 0);

scripts/filters/shake-file.js

@@ -4,7 +4,6 @@
 
 hexo.extend.filter.register('after_generate', function () {
   var theme = hexo.theme.config;
-
   if (!theme.shake_file) {
     return;
   }

scripts/tags/note.js

@@ -3,14 +3,15 @@
 'use strict';
 
 function note(args, content) {
-  var args = args.join(' ');
-
-  return `<div class="note-plugin ${args}">
-            ${hexo.render
-              .renderSync({ text: content, engine: 'markdown' })
-              .split('\n')
-              .join('')}
-          </div>`;
+  var noteClassName = args.join(' ');
+  return `
+    <div class="note-plugin ${noteClassName}">
+      ${hexo.render
+        .renderSync({ text: content, engine: 'markdown' })
+        .split('\n')
+        .join('')}
+    </div>
+  `;
 }
 
 hexo.extend.tag.register('note', note, { ends: true });

scripts/tags/table.js

@@ -16,28 +16,27 @@ function table(args) {
     }
   });
 
-  return fs.readFile(path).then(function(datas) {
-    if (!datas) {
+  return fs.readFile(path).then(function(data) {
+    if (!data) {
       hexo.log.warn('Include file empty.');
       return;
-    }    
+    }
 
-    var datas = JSON.parse(datas);
+    var tableData = JSON.parse(data);
     var result = '<table class="table-plugin"><thead><tr>';
 
-    headers.forEach(header => {
-      result += `<th>${header}</th>`;
-    });
+    headers.forEach(header => (result += `<th>${header}</th>`));
     result += '</tr></thead><tbody>';
-    datas.forEach(data => {
+    tableData.forEach(item => {
       result += '<tr style="text-align: center;">';
-      for (const key in data) {
-        if (data.hasOwnProperty(key)) {
-          const value = data[key];
-          
-          result += `<td>${value}</td>`
+
+      for (var key in item) {
+        if (item.hasOwnProperty(key)) {
+          var value = item[key];
+          result += `<td>${value}</td>`;
         }
       }
+
       result += '</tr>';
     });
     result += '</tbody></table>';