A (non-complete) Prismjs syntax highlighting mode for Emacs' Restclient-mode

prism-restclient.js

/*
Author: Philipp Uhl
*/

const standardFeatures = {
  comment: /(^|[\n\r])\s*#.*/,
  tag: {
    pattern: /(^|[\n\r])[^ :]+: .*/,
    inside: {
      variable: {
        pattern: / :[a-zA-Z-\d]+/,
      },
      string: {
        pattern: /([^:\n\r]+: )(.*)/,
        lookbehind: true,
      },
    },
  },
  variable: {
    pattern: /(^|[\n\r]):[a-zA-Z-\d]+/,
  },
  operator: {
    pattern: /( := )|( = )/,
  },
};

Prism.languages.restclient = {
  jsonBody: {
    pattern:
      /([\n\r]Content-Type: application\/json\s*[\n\r])([^\n\r]+([\n\r]|\n\r|\r\n))*[\n\r]+([^]*?)(?=([\r\n]\s*#)|$)/,
    inside: {
      body: {
        pattern: /[\n\r]\s*[\n\r].*$/s,
        inside: Prism.languages.json,
      },
      ...standardFeatures,
    },
  },
  keyword: {
    pattern: /(^|[\n\r])(GET|POST|PUT|PATCH|DELETE|HEAD)\s+.*/,
    alias: "bold",
    inside: {
      tag: /\shttp.*$/i,
    },
  },
  lispAssignment: {
    pattern: /(^|[\n\r]):[a-zA-Z-\d]+\s+:=\s*.*$/m,
    inside: {
      lisp: {
        pattern: /(:=\s*)(.*$)/,
        lookbehind: true,
        inside: Prism.languages.lisp,
      },
      ...standardFeatures,
    },
  },
  ...standardFeatures,
};

Currently missing (but easy to add):

• XML body content
• form body content
• multi-line assignments
• probably lot's of other stuff