ngx-md

v18.0.0

Published

2 months ago

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daravind

angular markdown markdown-to-html marked prismjs code highlight

Angular Markdown (NgxMd)

Supports Angular2,4,5,6,7,12

Source @ https://github.com/dimpu/ngx-md

Getting Started

ngx-md contains NgxMdModule for Angular.

Additionally we use marked.js and prismjs for this component.

Installation instructions

Install ngx-md from npm:

npm install ngx-md --save

or using yarn:

yarn add ngx-md

How to use it with:

angular-cli — please refer to Getting started with angular-cli
angular-seed — please refer to Getting started with angular-seed
system.js (and Angular 2 QuickStart) — please checkout sample repository
webpack — you can view our demo page source code
stackblitz — sample available here
AoT using ngc and rollup — please refer to How to use ngx-md in Angular 2 with AoT compilation using ngc and rollup

Usage & Demo

Main source of API documentation and usage scenarios is available at https://dimpu.github.io/ngx-md/.

Contribution

Is very welcome! And remember, contribution is not only PRs and code, but any help with docs or helping other developers to solve issues are very appreciated! Thanks in advance!

Quick Guide

app.module.ts

This library has dependency on HttpClientModule. It should be always provided in your application.

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { NgxMdModule } from 'ngx-md';
import { HttpClientModule } from '@angular/common'
import { AppComponent } from '../src/app.component';

@NgModule({
  imports: [
    BrowserModule,
    HttpClientModule,
    NgxMdModule.forRoot(),
  ],
  declarations: [AppComponent],
  bootstrap: [AppComponent],
})

index.html

If you want syntax highlighting you need to import the prism css file.

Alternative 1: Import from cdn

<head>
    <meta charset="utf-8">
    <base href="/">

    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="icon" type="image/x-icon" href="favicon.ico">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.6.0/themes/prism.min.css" rel="stylesheet" />
  </head>

Alternative 2: Download the css file (or copy it from node_modules/prismjs/themes/, place it somewhere in your src folder and import

<link href="/css/prism.min.css" rel="stylesheet" />

Alternative 3: Include the prism css file in your sass style file

@import 'prismjs/themes/prism.css';

To support sytnax helight for other langugage you need to include

// import 'prismjs/prism';
import 'prismjs/components/prism-c';
import 'prismjs/components/prism-cpp';
import 'prismjs/components/prism-csharp';
import 'prismjs/components/prism-css';
import 'prismjs/components/prism-diff';
import 'prismjs/components/prism-java';
import 'prismjs/components/prism-javascript';
import 'prismjs/components/prism-perl';
...
...
...

app.component.html

<div Markdown>
    ### your markdown code
</div>

<!-- or use angular component -->

<ngx-md>
    ### your markdown code
</ngx-md>

<!-- to load from remote URL -->

<div NgxMd [path]="'/path/to/readme.md'" (error)="errorHandler($event)" (loaded)="loadedHandler($event)" (rendered)="renderedHandler($event)"></div>

<!-- load remote source code with auto syntax highlighting -->

<ngx-md [path]="'/path/to/code.cpp'"></ngx-md>

<ngx-md [path]="'/path/to/code.java'"></ngx-md>

<!-- load remote source code from url stored in variable
(see additional details about variable binding in the next section) -->

<ngx-md [path]="urlVariable"></ngx-md>

<ngx-md [path]="urlVariable" (loaded)="onLoad($event)" (error)="onError($event)"></ngx-md>

Variable binding

Now, with >1.4.x you can bind a variable to the markdown component. To do so:

@Component({
    selector: 'app-root',
    template: `
    <textarea [(ngModel)]="textData"></textarea>
    <ngx-md [data]="textData"></ngx-md>
    `,
})
export class MyComp {
  public textData = `## Markdown content data`;
}

Marked customization

Marked can be customized/extended by accessing the renderer from the MarkdownService:

import { NgxMdService } from 'ngx-md';
@Component({
    selector='my-comp',
    template: `
    <ngx-md>
     > Block
     > quote
     > here
    </ngx-md>
    `,
})
export class MyComp {
  constructor(private _markdown: NgxMdService) {}

  ngOnInit() {
    this._markdown.renderer.blockquote = (quote: string) => {
      return `<blockquote class="king-quote">${quote}</blockquote>`;
    }
  }

See marked documentation for all renderer extension points.

Example

You can find a working example inside the demo directory.

To serve it locally, run:

git clone https://github.com/dimpu/ngx-md.git

npm i

npm run demo.serve

Todo

[x] Variable binding
[x] Code refactor
[x] Write more unit tests
[x] Angular 5,6,7 support
[ ] Angular schemantics support
[ ] Module configuration for markdown settings
[ ] Module configuration for prismjs settings

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