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A simple Markdown parser for Dart. Create your own custom Markdown syntax. package GitHub repository

Markdown #

A simple Markdown parser for Dart.
Create your own custom Markdown syntax.

Features #

  • Attach placeholder replacements to your Markdown syntax
  • Simple to create and setup a Markdown syntax
  • Easily improvable and extendable, with better organization
  • Generalized for most use cases

Getting started #

Install it using pub:

dart pub add marked

And import the package:

import 'package:marked/marked.dart';

Usage #

Create a Markdown instance with all the placeholders you want to use.

Then, use the apply method to parse the Markdown syntax.

import 'package:marked/marked.dart';

final markdown ={
  '**': (text, match) => '<b>$text</b>',
  '*': (text, match) => '<i>$text</i>',
  '~~': (text, match) => '<strike>$text</strike>',
  '__': (text, match) => '<u>$text</u>',
  '`': (text, match) => '<code>$text</code>',

void main() {
      Hello **World**!
      __Looks *pretty* easy__

  // Output:
  //   Hello <b>World</b>!
  //   <u>Looks <i>pretty</i> easy</u>

Placeholders #

Placeholders are modular elements that can be used to create a Markdown syntax. They are used to replace a specific part of the text that matches a pattern.

MarkdownPlaceholder(RegExp(r'\*\*(.*?)\*\*'), (text, match) => '<b>$text</b>');

To make it easier to create placeholders, there are some predefined methods:

MarkdownPlaceholder.enclosed('**', (text, match) => '<b>$text</b>');
// Hello **World**! -> Hello <b>World</b>!

MarkdownPlaceholder.tag('strong', (text, match) => '<b>$text</b>');
// Hello <strong>World</strong>! -> Hello <b>World</b>!

MarkdownPlaceholder.regexp(r'\*\*(.*?)\*\*', (text, match) => '<b>$text</b>');
// Hello **World**! -> Hello <b>World</b>!

When creating a placeholder, you can attribute a name to it. This allows you to specify which placeholder to apply.

... ({
  MarkdownPlaceholder(name: 'bold', ... );

markdown.apply('Hello, **World**!', { 'bold' });

Escaping #

You can set an escape pattern to prevent placeholders from being applied. To disable escaping, set the escape to an empty string.

You may also escape the escape by repeating it twice, although you will only need to escape the ones before placeholders.

By default, the escape pattern is set to \.

final markdown ={ ... }, escape: r'\');

    Hello **World**!
    Hello \**World**!
    Hello \\**World**!

// Output:
//   Hello <b>World</b>!
//   Hello **World**!
//   Hello \<b>World</b>!

Example #

import 'package:marked/marked.dart';

final htmlMarkdown = Markdown({
  MarkdownPlaceholder.enclosed('**', (text, match) => '<b>$text</b>'),
  MarkdownPlaceholder.enclosed('*', (text, match) => '<i>$text</i>'),
  MarkdownPlaceholder.enclosed('~~', (text, match) => '<strike>$text</strike>'),
  MarkdownPlaceholder.enclosed('`', (text, match) => '<code>$text</code>'),

void main() {
  print(htmlMarkdown.apply('HTML Markdown: **bold** *italic* ~~strike~~ `code`'));
  // [Output]
  // HTML Markdown: <b>bold</b> <i>italic</i> <strike>strike</strike> <code>code</code>

More Examples:

pub points



A simple Markdown parser for Dart. Create your own custom Markdown syntax.

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