https://daringfireball.net/projects/markdown/

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Introduction

Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML).

Thus, “Markdown” is two things: (1) a plain text formatting syntax; and (2) a software tool, written in Perl, that converts the plain text formatting to HTML. See the Syntax page for details pertaining to Markdown’s formatting syntax. You can try it out, right now, using the online Dingus.

The overriding design goal for Markdown’s formatting syntax is to make it as readable as possible. The idea is that a Markdown-formatted document should be publishable as-is, as plain text, without looking like it’s been marked up with tags or formatting instructions. While Markdown’s syntax has been influenced by several existing text-to-HTML filters, the single biggest source of inspiration for Markdown’s syntax is the format of plain text email.

The best way to get a feel for Markdown’s formatting syntax is simply to look at a Markdown-formatted document. For example, you can view the Markdown source for the article text on this page here: http://daringfireball.net/projects/markdown/index.text

(You can use this ‘.text’ suffix trick to view the Markdown source for the content of each of the pages in this section, e.g. the Syntax and License pages.)

Markdown is free software, available under a BSD-style open source license. See the License page for more information.

Discussion List

I’ve set up a public mailing list for discussion about Markdown. Any topic related to Markdown — both its formatting syntax and its software — is fair game for discussion. Anyone who is interested is welcome to join.

It’s my hope that the mailing list will lead to good ideas for future improvements to Markdown.

Installation and Requirements

Markdown requires Perl 5.6.0 or later. Welcome to the 21st Century. Markdown also requires the standard Perl library module Digest::MD5, which is probably already installed on your server.

Movable Type

Markdown works with Movable Type version 2.6 or later (including Movable Type 3.0).

1. Copy the “Markdown.pl” file into your Movable Type “plugins” directory. The “plugins” directory should be in the same directory as “mt.cgi”; if the “plugins” directory doesn’t already exist, use your FTP program to create it. Your installation should look like this:

   (mt home)/plugins/Markdown.pl
   
   

2. Once installed, Markdown will appear as an option in Movable Type’s Text Formatting pop-up menu. This is selectable on a per-post basis:

   

   Markdown translates your posts to HTML when you publish; the posts themselves are stored in your MT database in Markdown format.

3. If you also install SmartyPants 1.5 (or later), Markdown will offer a second text formatting option: “Markdown With SmartyPants”. This option is the same as the regular “Markdown” formatter, except that it automatically uses SmartyPants to create typographically correct curly quotes, em-dashes, and ellipses. See the SmartyPants web page for more information.