npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

regulex_common

v0.1.1

Published

JavaScript Regular Expression Parser and Visualizer.

Downloads

310

Readme

Regulex_common

Regulex_common is a JavaScript Regular Expression Parser & Visualizer.

It base on Regulex, use by commonJs rules.

Try it now: https://freecity.club/#/regulex

Features

github: https://github.com/wyc194/regulex.git
origin project github: https://github.com/CJex/regulex

Origin Project Declare

  • Written in pure JavaScript. No backend required.
  • You can embed the graph on you own site through HTML iframe element.
  • Detailed error message. In most cases it can point out the precise syntax error position.
  • No support for octal escape. Yes it is a feature! ECMAScript strict mode doesn't allow octal escape in string, but many browsers still allow octal escape in regex. In regulex, DecimalEscape will always be treated as back reference. If the back reference is invalid, e.g. /\1/, /(\1)/, /(a)\2/, or DecimalEscape appears in charset(because in this case it can't be explained as back reference, e.g. /(ab)[\1]/, Regulex will always throw an error.

Project Declare

  • 更改依赖性:去除requireJs,适应ES6模块化使用方式.

For browser use

如采用以<script>标签直接导入js供浏览器使用方式, 请查看使用原项目Regulex(https://github.com/CJex/regulex)

Install for Node.js, Vue... [ES6 Module方式]

npm install regulex_common

API

import { parse, Kit, Raphael, visualize } from 'regulex_common'

Parse to AST

const regExp = /var\s+([a-zA-Z_]\w*);/
console.log(parse(regExp.source))

Visualize

const regExp = /var\s+([a-zA-Z_]\w*);/
const paper = Raphael("htmlElementID", 0, 0)
try {
  visualize(parse(regExp.source), getRegexFlags(re), paper)
} catch (e) {
  if (e instanceof parse.RegexSyntaxError) {
    // do some thing
  }
}

function getRegexFlags(re) {
  let flags = ""
  flags += re.ignoreCase ? "i" : ""
  flags += re.global ? "g" : ""
  flags += re.multiline ? "m" : ""
  return flags
}