lex-highlight v0.0.5

lex-highlight is a syntax highlighter written according to the lexical analyzer. It supports advanced features such as string interpolation and language nesting.

Usage

import { highlight } from 'lex-highlight'
let lang = "F#"
let code = "let x = 100"
let outp = document.createElement('pre')
highlight(outp, lang, code)

Creating a new language

A language is placed in a separate folder under the src main folder. The syntax of a language lexical analysis function is similar

fsharpTokenize(code:string)

Your lexical analyzer should return an array of tokens. A token can specify a type, or it is text in itself.

[{token: '   '},{ token:{comment:'// sdfad'}},...]

This section will explain the usual workflow of creating a new language definition.

Write a matching function. If the match is successful, a match of token and the remaining input string is returned, and the mismatch returns null.

Combining the matching functions in order constitutes a tokenize function that executes once.

Continue to take forward tokens from the input head until the input is exhausted.

Some reusable function

tryToken
tryWhitespace
tryWord
trySymbol

and functions in other language folders.