refractor/lang/j.js

Lightweight, robust, elegant virtual syntax highlighting using Prism

// @ts-nocheck
/**
 * @import {Refractor} from '../lib/core.js'
 */
j.displayName = 'j'
j.aliases = []

/** @param {Refractor} Prism */
export default function j(Prism) {
  Prism.languages.j = {
    comment: {
      pattern: /\bNB\..*/,
      greedy: true
    },
    string: {
      pattern: /'(?:''|[^'\r\n])*'/,
      greedy: true
    },
    keyword:
      /\b(?:(?:CR|LF|adverb|conjunction|def|define|dyad|monad|noun|verb)\b|(?:assert|break|case|catch[dt]?|continue|do|else|elseif|end|fcase|for|for_\w+|goto_\w+|if|label_\w+|return|select|throw|try|while|whilst)\.)/,
    verb: {
      // Negative look-ahead prevents bad highlighting
      // of ^: ;. =. =: !. !:
      pattern:
        /(?!\^:|;\.|[=!][.:])(?:\{(?:\.|::?)?|p(?:\.\.?|:)|[=!\]]|[<>+*\-%$|,#][.:]?|[?^]\.?|[;\[]:?|[~}"i][.:]|[ACeEIjLor]\.|(?:[_\/\\qsux]|_?\d):)/,
      alias: 'keyword'
    },
    number:
      /\b_?(?:(?!\d:)\d+(?:\.\d+)?(?:(?:ad|ar|[ejpx])_?\d+(?:\.\d+)?)*(?:b_?[\da-z]+(?:\.[\da-z]+)?)?|_\b(?!\.))/,
    adverb: {
      pattern: /[~}]|[\/\\]\.?|[bfM]\.|t[.:]/,
      alias: 'builtin'
    },
    operator: /[=a][.:]|_\./,
    conjunction: {
      pattern: /&(?:\.:?|:)?|[.:@][.:]?|[!D][.:]|[;dHT]\.|`:?|[\^LS]:|"/,
      alias: 'variable'
    },
    punctuation: /[()]/
  }
}