change lib/highlight to lib/core for requiring the lib

Author: joshgoebel

README.md

@@ -301,8 +301,8 @@ onmessage = (event) => {
 
 ## Node.js
 
-You can use highlight.js with node to highlight content before sending it to the browser. 
-Make sure to use the `.value` property to get the formatted html. 
+You can use highlight.js with node to highlight content before sending it to the browser.
+Make sure to use the `.value` property to get the formatted html.
 For more info about the returned object refer to the api docs https://highlightjs.readthedocs.io/en/latest/api.html
 
 
@@ -314,7 +314,7 @@ const highlightedCode = hljs.highlightAuto('<span>Hello World!</span>').value
 
 ```js
 // require the highlight.js library without languages
-const hljs = require("highlight.js/lib/highlight.js");
+const hljs = require("highlight.js/lib/core.js");
 // separately require languages
 hljs.registerLanguage('html', require('highlight.js/lib/languages/html'));
 hljs.registerLanguage('sql', require('highlight.js/lib/languages/sql'));
@@ -371,15 +371,15 @@ import hljs from 'highlight.js';
 The default import imports all languages! Therefore it is likely to be more efficient to import only the library and the languages you need:
 
 ```js
-import hljs from 'highlight.js/lib/highlight';
+import hljs from 'highlight.js/lib/core';
 import javascript from 'highlight.js/lib/languages/javascript';
 hljs.registerLanguage('javascript', javascript);
 ```
 
 To set the syntax highlighting style, if your build tool processes CSS from your JavaScript entry point, you can import the stylesheet directly into your CommonJS-module:
 
 ```js
-import hljs from 'highlight.js/lib/highlight';
+import hljs from 'highlight.js/lib/core';
 import 'highlight.js/styles/github.css';
 ```
 

tools/build_node.js

@@ -7,7 +7,7 @@ const { rollupWrite } = require("./lib/bundling.js");
 const log = (...args) => console.log(...args);
 
 async function buildNodeIndex(languages) {
-  const header = "var hljs = require('./highlight');";
+  const header = "var hljs = require('./core');";
   const footer = "module.exports = hljs;";
 
   const registration = languages.map((lang) => {
@@ -18,6 +18,12 @@ async function buildNodeIndex(languages) {
     return `hljs.registerLanguage('${lang.name}', ${require});`;
   })
 
+  // legacy
+  await fs.writeFile(`${process.env.BUILD_DIR}/lib/highlight.js`,
+    "// This file has been deprecated in favor of core.js\n" +
+    "var hljs = require('./core');\n"
+  )
+
   const index = `${header}\n\n${registration.join("\n")}\n\n${footer}`;
   await fs.writeFile(`${process.env.BUILD_DIR}/lib/index.js`, index);
 }
@@ -30,7 +36,7 @@ async function buildNodeIndex(languages) {
 
 async function buildNodeHighlightJS() {
   const input = { input: `src/highlight.js` }
-  const output = { ...config.rollup.node.output, file: `${process.env.BUILD_DIR}/lib/highlight.js` }
+  const output = { ...config.rollup.node.output, file: `${process.env.BUILD_DIR}/lib/core.js` }
   await rollupWrite(input, output)
 }