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PHP Markdown Next

PHP Markdown Next

by Nazar Mokrynskyi [email protected]

based on PHP Markdown Extra by Michel Fortin http://michelf.ca/

with changes from PHP Markdown Extra Extended by Egil Hansen [email protected]

based on original Markdown by John Gruber http://daringfireball.net/

Introduction

This is a library package that includes the PHP Markdown Next parser, which is based on PHP Markdown Extra and PHP Markdown Extra Extended parsers.

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).

"Markdown" is two things: a plain text markup syntax, and a software tool, written in Perl, that converts the plain text markup to HTML. PHP Markdown is a port to PHP of the original Markdown program by John Gruber.

Full documentation of Markdown's syntax is available on John's Markdown page: http://daringfireball.net/projects/markdown/ PHP Markdown Extra syntax is described by Michel Fortin: http://michelf.ca/projects/php-markdown/extra/ Changes in PHP Markdown Extra Extended are described in corresponding repository by Egil Hansen: https://github.com/egil/php-markdown-extra-extended

Requirements

This library package requires PHP 5.4 or later.

Usage

In order to use this library, you can use composer:

{
    "require": {
        "nazar-pc/php-markdown-next": "*"
    }
}

Or include file src/nazarpc/MarkdownNext.php manually (see example/index.php file).

Then you can use class:

use nazarpc\MarkdownNext;
$my_html = MarkdownNext::defaultTransform($my_text);

Static method defaultTransform is used in example above, but if you want to customize default settings - you can create instance of MarkdownNext class:

use nazarpc\MarkdownNext;
$parser = new MarkdownNext;
$parser->fn_id_prefix = "post22-";
$my_html = $parser->transform($my_text);

To learn more, see the full list of Markdown Extra configuration variables and Markdown configuration variables.

Public API and Versioning Policy

Version numbers are of the form major.minor.patch.

The public API of PHP Markdown Next consist of the parser class MarkdownNext, its constructor, the transform and defaultTransform methods and their configuration variables. The public API is stable for a given major version number. It might get additions when the minor version number increments.

Protected members are not considered public API. This is unconventional and deserves an explanation. Incrementing the major version number every time the underlying implementation of something changes is going to give nonessential version numbers for the vast majority of people who just use the parser. Protected members are meant to create parser subclasses that behave in different ways. Very few people create parser subclasses. I don't want to discourage it by making everything private, but at the same time I can't guarantee any stable hook between versions if you use protected members.

Syntax changes will increment the minor number for new features, and the patch number for small corrections. A new feature is something that needs a change in the syntax documentation.

Bugs and Contributions

Reporting of issues and creating of pull requests are highly appreciated!

Also feel free to contact me via email [email protected]

Please include with your bug report: (1) the example of input; (2) the output you expected; (3) the output PHP Markdown Next actually produced.

Versions History

PHP Markdown Next 2.0.0 (10 Nov 2013):

This is first release of Next series.

• Git version of PHP Markdown repository on 4 Nov 2013 was taken as the base
• Code reformatted, some properties renamed, added proper PHPDoc sections so that IDE now can work with them
• Several rejected pull requests of PHP Markdown Extra were added:
  • GFM-Style Fenced Code Blocks by Jason Caldwell
  • Enhanced ordered list by Matt Gorle
  • Convert public member comments to PHPDoc format (partial work in this direction) by Mark Trapp
• Added changes from PHP Markdown Extra Extended, which was based on old version of PHP Markdown Extra
• Markdown and MarkdownExtra classes together with other changes merged into single class MarkdownNext
• Some internal changes, like moving of protected methods to closures in callbacks, short array syntax usage, short ternary operators

PHP Markdown Lib 1.3 (11 Apr 2013):

This is the first release of PHP Markdown Lib. This package requires PHP version 4.3 or later and is designed to work with PSR-0 autoloading and, optionally with Composer. Here is a list of the changes since PHP Markdown Extra 1.2.6:

• Plugin interface for WordPress and other systems is no longer present in the Lib package. The classic package is still available if you need it: http://michelf.ca/projects/php-markdown/classic/

• Added public and protected protection attributes, plus a section about what is "public API" and what isn't in the Readme file.

• Changed HTML output for footnotes: now instead of adding rel and rev attributes, footnotes links have the class name footnote-ref and backlinks footnote-backref.

• Fixed some regular expressions to make PCRE not shout warnings about POSIX collation classes (dependent on your version of PCRE).

• Added optional class and id attributes to images and links using the same syntax as for headers:

  [link](url){#id .class}
  ![img](url){#id .class}

  It work too for reference-style links and images. In this case you need to put those attributes at the reference definition:

  [link][linkref] or [linkref]
  ![img][linkref]
  
  [linkref]: url "optional title" {#id .class}

• Fixed a PHP notice message triggered when some table column separator markers are missing on the separator line below column headers.

• Fixed a small mistake that could cause the parser to retain an invalid state related to parsing links across multiple runs. This was never observed (that I know of), but it's still worth fixing.

Copyright and License

BSD 3-Clause License

See license.md file for details