code-syntax
Code syntax highlight Web Component
npm i code-syntax
|
pnpm add code-syntax
|
yarn add code-syntax
|
Examples
# web
Try it live
# view source
example/web.ts import 'plenty-themes/cobalt2.css'
import 'plenty-themes/laser.css'
import 'code-syntax/themes/default.css'
import { CodeSyntaxElement, languages } from 'code-syntax'
import js from 'code-syntax/languages/js'
customElements.define('code-syntax', CodeSyntaxElement)
languages.js = js // can also be import(code-syntax.) directly
document.body.innerHTML = `
<code-syntax id="demo" style="display:inline-flex;" language="js" theme="laser">class Vector {
x: number
y: number
constructor(x: number, y: number) {
this.x = x
this.y = y
}
add(v: Vector): Vector {
return new Vector(this.x + v.x, this.y + v.y)
}
}
</code-syntax>
`
API
# CodeSyntaxElement
src/element.ts#L45
# onmounted
EventHandler<CodeSyntaxElement, CustomEvent<any>>
# onunmounted
EventHandler<CodeSyntaxElement, CustomEvent<any>>
# mounted($)
src/element.ts#L58
# $
Context<CodeSyntaxElement & JsxContext<CodeSyntaxElement> & Omit<{
<T>(ctor) =>
- CleanClass<T>
<T>(ctx) =>
- Wrapper<T>
"transition">> mounted($) =>
- void
# compile(def, keys) – Compiles a syntax definition.
src/syntax.ts#L24
const r = await compile({
foo: /[a-z]/,
bar: /[0-9]/,
})
# def – The syntax definition to compile. Can be a promise returned by import().
# keys = ...
Set<string>
compile(def, keys) =>
- Promise<RegExpMapped>
# patchElements(elements, Partial<PatchOptions>)
src/util.ts#L8
# elements
Element []
patchElements(elements, Partial<PatchOptions>) =>
- void
# patchPreCodeElements(opts)
src/util.ts#L27
# opts
Partial<PatchOptions>
patchPreCodeElements(opts) =>
- void
# syntax(regexp, s) – Syntax highlights a string as html with the given syntax.
src/syntax.ts#L68
const regexp = await compile({
foo: /[a-z]+/,
bar: [
/[0-9]+/,
{
bar: /[0-5]+/,
},
],
})
const html = syntax(regexp, 'hello 123 789 world')
# regexp – The syntax definition returned by compile()
RegExp | RegExpMapped
# s – The string to highlight.
string
syntax(regexp, s) =>
- string
Credits
- html-escaper by Andrea Giammarchi – fast and safe way to escape and unescape &<>'" chars
- sigl by stagas – Web framework
Contributing
All contributions are welcome!