@codemirror/lang-java

What is @codemirror/lang-java?

@codemirror/lang-java is a language support package for the CodeMirror 6 code editor, specifically designed to provide syntax highlighting, code folding, and other language-specific features for Java programming.

What are @codemirror/lang-java's main functionalities?

Syntax Highlighting

This code sets up a CodeMirror editor instance with Java syntax highlighting. The `java` function from `@codemirror/lang-java` is used to enable Java language support.

import { java } from '@codemirror/lang-java';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const state = EditorState.create({
  doc: 'public class HelloWorld {\n  public static void main(String[] args) {\n    System.out.println("Hello, World!");\n  }\n}',
  extensions: [basicSetup, java()]
});

const view = new EditorView({
  state,
  parent: document.body
});

Code Folding

This code demonstrates how to set up code folding in a CodeMirror editor with Java language support. The `foldGutter` extension is used alongside the `java` language support.

import { java } from '@codemirror/lang-java';
import { foldGutter } from '@codemirror/fold';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const state = EditorState.create({
  doc: 'public class HelloWorld {\n  public static void main(String[] args) {\n    System.out.println("Hello, World!");\n  }\n}',
  extensions: [basicSetup, java(), foldGutter()]
});

const view = new EditorView({
  state,
  parent: document.body
});

Autocompletion

This code sets up autocompletion in a CodeMirror editor with Java language support. The `autocompletion` extension is used alongside the `java` language support.

import { java } from '@codemirror/lang-java';
import { autocompletion } from '@codemirror/autocomplete';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const state = EditorState.create({
  doc: 'public class HelloWorld {\n  public static void main(String[] args) {\n    System.out.println("Hello, World!");\n  }\n}',
  extensions: [basicSetup, java(), autocompletion()]
});

const view = new EditorView({
  state,
  parent: document.body
});

Other packages similar to @codemirror/lang-java

@codemirror/lang-javascript

@codemirror/lang-javascript provides similar functionalities for JavaScript, including syntax highlighting, code folding, and autocompletion. It is tailored for JavaScript and TypeScript, making it ideal for web development projects.

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README

@codemirror/lang-java

[ WEBSITE | ISSUES | FORUM | CHANGELOG ]

This package implements Java language support for the CodeMirror code editor.

The project page has more information, a number of examples and the documentation.

This code is released under an MIT license.

We aim to be an inclusive, welcoming community. To make that explicit, we have a code of conduct that applies to communication around the project.

API Reference

java() → LanguageSupport

Java language support.

javaLanguage: LezerLanguage

A language provider based on the Lezer Java parser, extended with highlighting and indentation information.

Changelog

6.0.1 (2022-10-24)

Bug fixes

Fix (non-)auto indentation in template strings and comments.