From 7143c3e5710c48092a48ca1926b7319542f9b31d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=B3na=20Lore?= <lonalore@freemail.hu>
Date: Sat, 28 Jan 2017 19:12:49 +0100
Subject: [PATCH] Remove unused markdown parser.
---
e107_admin/core_image.php | 2 -
e107_core/bbcodes/bb_markdown.php | 40 -
e107_handlers/bbcode_handler.php | 20 +-
e107_handlers/markdown.php | 1743 -----------------------------
4 files changed, 10 insertions(+), 1795 deletions(-)
delete mode 100644 e107_core/bbcodes/bb_markdown.php
delete mode 100644 e107_handlers/markdown.php
diff --git a/e107_admin/core_image.php b/e107_admin/core_image.php
index eebc16ef2..5ed634fdd 100644
--- a/e107_admin/core_image.php
+++ b/e107_admin/core_image.php
@@ -92,7 +92,6 @@ $core_image = array (
'bb_glyph.php' => '147a7d5075947f99b8599df1ebf835f1',
'bb_h.php' => '945730e2d340571a0eb7e4aa78cd41c6',
'bb_img.php' => '8f0747f6b462f57c6ccf00c3c15a62ed',
- 'bb_markdown.php' => '871c8ca54ef739f9bae2774e814ded30',
'bb_nobr.php' => 'd364d4de62a75e674116d463e2374b5b',
'bb_p.php' => '6e238c62bd55a6dae4aa7006456e7e90',
'bb_video.php' => '9ea3a1c1d80c6d753b7b424ec746d073',
@@ -528,7 +527,6 @@ $core_image = array (
'mail_validation_class.php' => '6ced3acdeb2e3ba8f785d4a82c0b9b86',
'mailout_admin_class.php' => 'd11d71c22f267978ce3c068ef45baed7',
'mailout_class.php' => 'cf46e699b92faad90f55820a696501f5',
- 'markdown.php' => 'ad868fa8895d098e0e22a4b2ecf845e6',
'media_class.php' => 'df5ca4c876b5254a4d50b33d752c80c5',
'menu_class.php' => '3dbca61018aa3c732ba9aa8d9d70f19c',
'menumanager_class.php' => 'efa909f4b5496fe8fd6360225cd67c75',
diff --git a/e107_core/bbcodes/bb_markdown.php b/e107_core/bbcodes/bb_markdown.php
deleted file mode 100644
index 3d2f986bf..000000000
--- a/e107_core/bbcodes/bb_markdown.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
- /**
- * Copyright (C) e107 Inc (e107.org), Licensed under GNU GPL (http://www.gnu.org/licenses/gpl.txt)
- *
- * DIV block bbcode
- */
-
-if (!defined('e107_INIT')) { exit; }
-
-
-class bb_markdown extends e_bb_base
-{
- /**
- * Called prior to save
- * Re-assemble the bbcode
- */
- function toDB($code_text, $parm)
- {
- return '[markdown]'.$code_text.'[/markdown]';
- }
-
- /**
- * Convert Markdown
- */
- function toHTML($code_text, $parm)
- {
- require_once(e_HANDLER."markdown.php");
- return Markdown($code_text);
- }
-
-
-}
-
-
-
-
-
-
-
-?>
\ No newline at end of file
diff --git a/e107_handlers/bbcode_handler.php b/e107_handlers/bbcode_handler.php
index dfcfa0574..cd592bee0 100644
--- a/e107_handlers/bbcode_handler.php
+++ b/e107_handlers/bbcode_handler.php
@@ -35,17 +35,17 @@ class e_bbcode
function __construct()
{
$pref = e107::getPref();
-
+
$this->core_bb = array(
- 'alert',
- 'blockquote', 'img', 'i', 'u', 'center',
- '_br', 'color', 'size', 'code',
- 'flash', 'link', 'email',
- 'url', 'quote', 'left', 'right',
- 'b', 'justify', 'file', 'stream',
- 'textarea', 'list', 'time',
- 'spoiler', 'hide', 'youtube', 'sanitised',
- 'p', 'h', 'nobr', 'block','table','th', 'tr','tbody','td','markdown','video','glyph'
+ 'alert',
+ 'blockquote', 'img', 'i', 'u', 'center',
+ '_br', 'color', 'size', 'code',
+ 'flash', 'link', 'email',
+ 'url', 'quote', 'left', 'right',
+ 'b', 'justify', 'file', 'stream',
+ 'textarea', 'list', 'time',
+ 'spoiler', 'hide', 'youtube', 'sanitised',
+ 'p', 'h', 'nobr', 'block', 'table', 'th', 'tr', 'tbody', 'td', 'video', 'glyph'
);
foreach($this->core_bb as $c)
diff --git a/e107_handlers/markdown.php b/e107_handlers/markdown.php
deleted file mode 100644
index 17e515270..000000000
--- a/e107_handlers/markdown.php
+++ /dev/null
@@ -1,1743 +0,0 @@
-<?php
-#
-# Markdown - A text-to-HTML conversion tool for web writers
-#
-# PHP Markdown
-# Copyright (c) 2004-2013 Michel Fortin
-# <http://michelf.ca/projects/php-markdown/>
-#
-# Original Markdown
-# Copyright (c) 2004-2006 John Gruber
-# <http://daringfireball.net/projects/markdown/>
-#
-
-
-define( 'MARKDOWN_VERSION', "1.0.1q" ); # 11 Apr 2013
-
-
-#
-# Global default settings:
-#
-
-# Change to ">" for HTML output
-@define( 'MARKDOWN_EMPTY_ELEMENT_SUFFIX', " />");
-
-# Define the width of a tab for code blocks.
-@define( 'MARKDOWN_TAB_WIDTH', 4 );
-
-
-#
-# WordPress settings:
-#
-
-# Change to false to remove Markdown from posts and/or comments.
-@define( 'MARKDOWN_WP_POSTS', true );
-@define( 'MARKDOWN_WP_COMMENTS', true );
-
-
-
-### Standard Function Interface ###
-
-@define( 'MARKDOWN_PARSER_CLASS', 'Markdown_Parser' );
-
-function Markdown($text) {
-#
-# Initialize the parser and return the result of its transform method.
-#
- # Setup static parser variable.
- static $parser;
- if (!isset($parser)) {
- $parser_class = MARKDOWN_PARSER_CLASS;
- $parser = new $parser_class;
- }
-
- # Transform text using parser.
- return $parser->transform($text);
-}
-
-
-### WordPress Plugin Interface ###
-
-/*
-Plugin Name: Markdown
-Plugin URI: http://michelf.ca/projects/php-markdown/
-Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.ca/projects/php-markdown/">More...</a>
-Version: 1.0.1q
-Author: Michel Fortin
-Author URI: http://michelf.ca/
-*/
-
-if (isset($wp_version)) {
- # More details about how it works here:
- # <http://michelf.ca/weblog/2005/wordpress-text-flow-vs-markdown/>
-
- # Post content and excerpts
- # - Remove WordPress paragraph generator.
- # - Run Markdown on excerpt, then remove all tags.
- # - Add paragraph tag around the excerpt, but remove it for the excerpt rss.
- if (MARKDOWN_WP_POSTS) {
- remove_filter('the_content', 'wpautop');
- remove_filter('the_content_rss', 'wpautop');
- remove_filter('the_excerpt', 'wpautop');
- add_filter('the_content', 'Markdown', 6);
- add_filter('the_content_rss', 'Markdown', 6);
- add_filter('get_the_excerpt', 'Markdown', 6);
- add_filter('get_the_excerpt', 'trim', 7);
- add_filter('the_excerpt', 'mdwp_add_p');
- add_filter('the_excerpt_rss', 'mdwp_strip_p');
-
- remove_filter('content_save_pre', 'balanceTags', 50);
- remove_filter('excerpt_save_pre', 'balanceTags', 50);
- add_filter('the_content', 'balanceTags', 50);
- add_filter('get_the_excerpt', 'balanceTags', 9);
- }
-
- # Comments
- # - Remove WordPress paragraph generator.
- # - Remove WordPress auto-link generator.
- # - Scramble important tags before passing them to the kses filter.
- # - Run Markdown on excerpt then remove paragraph tags.
- if (MARKDOWN_WP_COMMENTS) {
- remove_filter('comment_text', 'wpautop', 30);
- remove_filter('comment_text', 'make_clickable');
- add_filter('pre_comment_content', 'Markdown', 6);
- add_filter('pre_comment_content', 'mdwp_hide_tags', 8);
- add_filter('pre_comment_content', 'mdwp_show_tags', 12);
- add_filter('get_comment_text', 'Markdown', 6);
- add_filter('get_comment_excerpt', 'Markdown', 6);
- add_filter('get_comment_excerpt', 'mdwp_strip_p', 7);
-
- global $mdwp_hidden_tags, $mdwp_placeholders;
- $mdwp_hidden_tags = explode(' ',
- '<p> </p> <pre> </pre> <ol> </ol> <ul> </ul> <li> </li>');
- $mdwp_placeholders = explode(' ', str_rot13(
- 'pEj07ZbbBZ U1kqgh4w4p pre2zmeN6K QTi31t9pre ol0MP1jzJR '.
- 'ML5IjmbRol ulANi1NsGY J7zRLJqPul liA8ctl16T K9nhooUHli'));
- }
-
- function mdwp_add_p($text) {
- if (!preg_match('{^$|^<(p|ul|ol|dl|pre|blockquote)>}i', $text)) {
- $text = '<p>'.$text.'</p>';
- $text = preg_replace('{\n{2,}}', "</p>\n\n<p>", $text);
- }
- return $text;
- }
-
- function mdwp_strip_p($t) { return preg_replace('{</?p>}i', '', $t); }
-
- function mdwp_hide_tags($text) {
- global $mdwp_hidden_tags, $mdwp_placeholders;
- return str_replace($mdwp_hidden_tags, $mdwp_placeholders, $text);
- }
- function mdwp_show_tags($text) {
- global $mdwp_hidden_tags, $mdwp_placeholders;
- return str_replace($mdwp_placeholders, $mdwp_hidden_tags, $text);
- }
-}
-
-
-### bBlog Plugin Info ###
-
-function identify_modifier_markdown() {
- return array(
- 'name' => 'markdown',
- 'type' => 'modifier',
- 'nicename' => 'Markdown',
- 'description' => 'A text-to-HTML conversion tool for web writers',
- 'authors' => 'Michel Fortin and John Gruber',
- 'licence' => 'BSD-like',
- 'version' => MARKDOWN_VERSION,
- 'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.ca/projects/php-markdown/">More...</a>'
- );
-}
-
-
-### Smarty Modifier Interface ###
-
-function smarty_modifier_markdown($text) {
- return Markdown($text);
-}
-
-
-### Textile Compatibility Mode ###
-
-# Rename this file to "classTextile.php" and it can replace Textile everywhere.
-
-if (strcasecmp(substr(__FILE__, -16), "classTextile.php") == 0) {
- # Try to include PHP SmartyPants. Should be in the same directory.
- @include_once 'smartypants.php';
- # Fake Textile class. It calls Markdown instead.
- class Textile {
- function TextileThis($text, $lite='', $encode='') {
- if ($lite == '' && $encode == '') $text = Markdown($text);
- if (function_exists('SmartyPants')) $text = SmartyPants($text);
- return $text;
- }
- # Fake restricted version: restrictions are not supported for now.
- function TextileRestricted($text, $lite='', $noimage='') {
- return $this->TextileThis($text, $lite);
- }
- # Workaround to ensure compatibility with TextPattern 4.0.3.
- function blockLite($text) { return $text; }
- }
-}
-
-
-
-#
-# Markdown Parser Class
-#
-
-class Markdown_Parser {
-
- ### Configuration Variables ###
-
- # Change to ">" for HTML output.
- var $empty_element_suffix = MARKDOWN_EMPTY_ELEMENT_SUFFIX;
- var $tab_width = MARKDOWN_TAB_WIDTH;
-
- # Change to `true` to disallow markup or entities.
- var $no_markup = false;
- var $no_entities = false;
-
- # Predefined urls and titles for reference links and images.
- var $predef_urls = array();
- var $predef_titles = array();
-
-
- ### Parser Implementation ###
-
- # Regex to match balanced [brackets].
- # Needed to insert a maximum bracked depth while converting to PHP.
- var $nested_brackets_depth = 6;
- var $nested_brackets_re;
-
- var $nested_url_parenthesis_depth = 4;
- var $nested_url_parenthesis_re;
-
- # Table of hash values for escaped characters:
- var $escape_chars = '\`*_{}[]()>#+-.!';
- var $escape_chars_re;
-
-
- function Markdown_Parser() {
- #
- # Constructor function. Initialize appropriate member variables.
- #
- $this->_initDetab();
- $this->prepareItalicsAndBold();
-
- $this->nested_brackets_re =
- str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
- str_repeat('\])*', $this->nested_brackets_depth);
-
- $this->nested_url_parenthesis_re =
- str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth).
- str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth);
-
- $this->escape_chars_re = '['.preg_quote($this->escape_chars).']';
-
- # Sort document, block, and span gamut in ascendent priority order.
- asort($this->document_gamut);
- asort($this->block_gamut);
- asort($this->span_gamut);
- }
-
-
- # Internal hashes used during transformation.
- var $urls = array();
- var $titles = array();
- var $html_hashes = array();
-
- # Status flag to avoid invalid nesting.
- var $in_anchor = false;
-
-
- function setup() {
- #
- # Called before the transformation process starts to setup parser
- # states.
- #
- # Clear global hashes.
- $this->urls = $this->predef_urls;
- $this->titles = $this->predef_titles;
- $this->html_hashes = array();
-
- $this->in_anchor = false;
- }
-
- function teardown() {
- #
- # Called after the transformation process to clear any variable
- # which may be taking up memory unnecessarly.
- #
- $this->urls = array();
- $this->titles = array();
- $this->html_hashes = array();
- }
-
-
- function transform($text) {
- #
- # Main function. Performs some preprocessing on the input text
- # and pass it through the document gamut.
- #
- $this->setup();
-
- # Remove UTF-8 BOM and marker character in input, if present.
- $text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text);
-
- # Standardize line endings:
- # DOS to Unix and Mac to Unix
- $text = preg_replace('{\r\n?}', "\n", $text);
-
- # Make sure $text ends with a couple of newlines:
- $text .= "\n\n";
-
- # Convert all tabs to spaces.
- $text = $this->detab($text);
-
- # Turn block-level HTML blocks into hash entries
- $text = $this->hashHTMLBlocks($text);
-
- # Strip any lines consisting only of spaces and tabs.
- # This makes subsequent regexen easier to write, because we can
- # match consecutive blank lines with /\n+/ instead of something
- # contorted like /[ ]*\n+/ .
- $text = preg_replace('/^[ ]+$/m', '', $text);
-
- # Run document gamut methods.
- foreach ($this->document_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- $this->teardown();
-
- return $text . "\n";
- }
-
- var $document_gamut = array(
- # Strip link definitions, store in hashes.
- "stripLinkDefinitions" => 20,
-
- "runBasicBlockGamut" => 30,
- );
-
-
- function stripLinkDefinitions($text) {
- #
- # Strips link definitions from text, stores the URLs and titles in
- # hash references.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Link defs are in the form: ^[id]: url "optional title"
- $text = preg_replace_callback('{
- ^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?: # id = $1
- [ ]*
- \n? # maybe *one* newline
- [ ]*
- (?:
- <(.+?)> # url = $2
- |
- (\S+?) # url = $3
- )
- [ ]*
- \n? # maybe one newline
- [ ]*
- (?:
- (?<=\s) # lookbehind for whitespace
- ["(]
- (.*?) # title = $4
- [")]
- [ ]*
- )? # title is optional
- (?:\n+|\Z)
- }xm',
- array(&$this, '_stripLinkDefinitions_callback'),
- $text);
- return $text;
- }
- function _stripLinkDefinitions_callback($matches) {
- $link_id = strtolower($matches[1]);
- $url = $matches[2] == '' ? $matches[3] : $matches[2];
- $this->urls[$link_id] = $url;
- $this->titles[$link_id] =& $matches[4];
- return ''; # String that will replace the block
- }
-
-
- function hashHTMLBlocks($text) {
- if ($this->no_markup) return $text;
-
- $less_than_tab = $this->tab_width - 1;
-
- # Hashify HTML blocks:
- # We only want to do this for block-level HTML tags, such as headers,
- # lists, and tables. That's because we still want to wrap <p>s around
- # "paragraphs" that are wrapped in non-block-level tags, such as anchors,
- # phrase emphasis, and spans. The list of tags we're looking for is
- # hard-coded:
- #
- # * List "a" is made of tags which can be both inline or block-level.
- # These will be treated block-level when the start tag is alone on
- # its line, otherwise they're not matched here and will be taken as
- # inline later.
- # * List "b" is made of tags which are always block-level;
- #
- $block_tags_a_re = 'ins|del';
- $block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'.
- 'script|noscript|form|fieldset|iframe|math|svg|'.
- 'article|section|nav|aside|hgroup|header|footer|'.
- 'figure';
-
- # Regular expression for the content of a block tag.
- $nested_tags_level = 4;
- $attr = '
- (?> # optional tag attributes
- \s # starts with whitespace
- (?>
- [^>"/]+ # text outside quotes
- |
- /+(?!>) # slash not followed by ">"
- |
- "[^"]*" # text inside double quotes (tolerate ">")
- |
- \'[^\']*\' # text inside single quotes (tolerate ">")
- )*
- )?
- ';
- $content =
- str_repeat('
- (?>
- [^<]+ # content without tag
- |
- <\2 # nested opening tag
- '.$attr.' # attributes
- (?>
- />
- |
- >', $nested_tags_level). # end of opening tag
- '.*?'. # last level nested tag content
- str_repeat('
- </\2\s*> # closing nested tag
- )
- |
- <(?!/\2\s*> # other tags with a different name
- )
- )*',
- $nested_tags_level);
- $content2 = str_replace('\2', '\3', $content);
-
- # First, look for nested blocks, e.g.:
- # <div>
- # <div>
- # tags for inner block must be indented.
- # </div>
- # </div>
- #
- # The outermost tags must start at the left margin for this to match, and
- # the inner nested divs must be indented.
- # We need to do this before the next, more liberal match, because the next
- # match will start at the first `<div>` and stop at the first `</div>`.
- $text = preg_replace_callback('{(?>
- (?>
- (?<=\n\n) # Starting after a blank line
- | # or
- \A\n? # the beginning of the doc
- )
- ( # save in $1
-
- # Match from `\n<tag>` to `</tag>\n`, handling nested tags
- # in between.
-
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_b_re.')# start tag = $2
- '.$attr.'> # attributes followed by > and \n
- '.$content.' # content, support nesting
- </\2> # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
-
- | # Special version for tags of group a.
-
- [ ]{0,'.$less_than_tab.'}
- <('.$block_tags_a_re.')# start tag = $3
- '.$attr.'>[ ]*\n # attributes followed by >
- '.$content2.' # content, support nesting
- </\3> # the matching end tag
- [ ]* # trailing spaces/tabs
- (?=\n+|\Z) # followed by a newline or end of document
-
- | # Special case just for <hr />. It was easier to make a special
- # case than to make the other regex more complicated.
-
- [ ]{0,'.$less_than_tab.'}
- <(hr) # start tag = $2
- '.$attr.' # attributes
- /?> # the matching end tag
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- | # Special case for standalone HTML comments:
-
- [ ]{0,'.$less_than_tab.'}
- (?s:
- <!-- .*? -->
- )
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- | # PHP and ASP-style processor instructions (<? and <%)
-
- [ ]{0,'.$less_than_tab.'}
- (?s:
- <([?%]) # $2
- .*?
- \2>
- )
- [ ]*
- (?=\n{2,}|\Z) # followed by a blank line or end of document
-
- )
- )}Sxmi',
- array(&$this, '_hashHTMLBlocks_callback'),
- $text);
-
- return $text;
- }
- function _hashHTMLBlocks_callback($matches) {
- $text = $matches[1];
- $key = $this->hashBlock($text);
- return "\n\n$key\n\n";
- }
-
-
- function hashPart($text, $boundary = 'X') {
- #
- # Called whenever a tag must be hashed when a function insert an atomic
- # element in the text stream. Passing $text to through this function gives
- # a unique text-token which will be reverted back when calling unhash.
- #
- # The $boundary argument specify what character should be used to surround
- # the token. By convension, "B" is used for block elements that needs not
- # to be wrapped into paragraph tags at the end, ":" is used for elements
- # that are word separators and "X" is used in the general case.
- #
- # Swap back any tag hash found in $text so we do not have to `unhash`
- # multiple times at the end.
- $text = $this->unhash($text);
-
- # Then hash the block.
- static $i = 0;
- $key = "$boundary\x1A" . ++$i . $boundary;
- $this->html_hashes[$key] = $text;
- return $key; # String that will replace the tag.
- }
-
-
- function hashBlock($text) {
- #
- # Shortcut function for hashPart with block-level boundaries.
- #
- return $this->hashPart($text, 'B');
- }
-
-
- var $block_gamut = array(
- #
- # These are all the transformations that form block-level
- # tags like paragraphs, headers, and list items.
- #
- "doHeaders" => 10,
- "doHorizontalRules" => 20,
-
- "doLists" => 40,
- "doCodeBlocks" => 50,
- "doBlockQuotes" => 60,
- );
-
- function runBlockGamut($text) {
- #
- # Run block gamut tranformations.
- #
- # We need to escape raw HTML in Markdown source before doing anything
- # else. This need to be done for each block, and not only at the
- # begining in the Markdown function since hashed blocks can be part of
- # list items and could have been indented. Indented blocks would have
- # been seen as a code block in a previous pass of hashHTMLBlocks.
- $text = $this->hashHTMLBlocks($text);
-
- return $this->runBasicBlockGamut($text);
- }
-
- function runBasicBlockGamut($text) {
- #
- # Run block gamut tranformations, without hashing HTML blocks. This is
- # useful when HTML blocks are known to be already hashed, like in the first
- # whole-document pass.
- #
- foreach ($this->block_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- # Finally form paragraph and restore hashed blocks.
- $text = $this->formParagraphs($text);
-
- return $text;
- }
-
-
- function doHorizontalRules($text) {
- # Do Horizontal Rules:
- return preg_replace(
- '{
- ^[ ]{0,3} # Leading space
- ([-*_]) # $1: First marker
- (?> # Repeated marker group
- [ ]{0,2} # Zero, one, or two spaces.
- \1 # Marker character
- ){2,} # Group repeated at least twice
- [ ]* # Tailing spaces
- $ # End of line.
- }mx',
- "\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n",
- $text);
- }
-
-
- var $span_gamut = array(
- #
- # These are all the transformations that occur *within* block-level
- # tags like paragraphs, headers, and list items.
- #
- # Process character escapes, code spans, and inline HTML
- # in one shot.
- "parseSpan" => -30,
-
- # Process anchor and image tags. Images must come first,
- # because ![foo][f] looks like an anchor.
- "doImages" => 10,
- "doAnchors" => 20,
-
- # Make links out of things like `<http://example.com/>`
- # Must come after doAnchors, because you can use < and >
- # delimiters in inline links like [this](<url>).
- "doAutoLinks" => 30,
- "encodeAmpsAndAngles" => 40,
-
- "doItalicsAndBold" => 50,
- "doHardBreaks" => 60,
- );
-
- function runSpanGamut($text) {
- #
- # Run span gamut tranformations.
- #
- foreach ($this->span_gamut as $method => $priority) {
- $text = $this->$method($text);
- }
-
- return $text;
- }
-
-
- function doHardBreaks($text) {
- # Do hard breaks:
- return preg_replace_callback('/ {2,}\n/',
- array(&$this, '_doHardBreaks_callback'), $text);
- }
- function _doHardBreaks_callback($matches) {
- return $this->hashPart("<br$this->empty_element_suffix\n");
- }
-
-
- function doAnchors($text) {
- #
- # Turn Markdown link shortcuts into XHTML <a> tags.
- #
- if ($this->in_anchor) return $text;
- $this->in_anchor = true;
-
- #
- # First, handle reference-style links: [link text] [id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
- )
- }xs',
- array(&$this, '_doAnchors_reference_callback'), $text);
-
- #
- # Next, inline-style links: [link text](url "optional title")
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ('.$this->nested_brackets_re.') # link text = $2
- \]
- \( # literal paren
- [ \n]*
- (?:
- <(.+?)> # href = $3
- |
- ('.$this->nested_url_parenthesis_re.') # href = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # Title = $7
- \6 # matching quote
- [ \n]* # ignore any spaces/tabs between closing quote and )
- )? # title is optional
- \)
- )
- }xs',
- array(&$this, '_doAnchors_inline_callback'), $text);
-
- #
- # Last, handle reference-style shortcuts: [link text]
- # These must come last in case you've also got [link text][1]
- # or [link text](/foo)
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- \[
- ([^\[\]]+) # link text = $2; can\'t contain [ or ]
- \]
- )
- }xs',
- array(&$this, '_doAnchors_reference_callback'), $text);
-
- $this->in_anchor = false;
- return $text;
- }
- function _doAnchors_reference_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $matches[2];
- $link_id =& $matches[3];
-
- if ($link_id == "") {
- # for shortcut links like [this][] or [this].
- $link_id = $link_text;
- }
-
- # lower-case and turn embedded newlines into spaces
- $link_id = strtolower($link_id);
- $link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
-
- if (isset($this->urls[$link_id])) {
- $url = $this->urls[$link_id];
- $url = $this->encodeAttribute($url);
-
- $result = "<a href=\"$url\"";
- if ( isset( $this->titles[$link_id] ) ) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text</a>";
- $result = $this->hashPart($result);
- }
- else {
- $result = $whole_match;
- }
- return $result;
- }
- function _doAnchors_inline_callback($matches) {
- $whole_match = $matches[1];
- $link_text = $this->runSpanGamut($matches[2]);
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
- $url = $this->encodeAttribute($url);
-
- $result = "<a href=\"$url\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
-
- $link_text = $this->runSpanGamut($link_text);
- $result .= ">$link_text</a>";
-
- return $this->hashPart($result);
- }
-
-
- function doImages($text) {
- #
- # Turn Markdown image shortcuts into <img> tags.
- #
- #
- # First, handle reference-style labeled images: ![alt text][id]
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
-
- [ ]? # one optional space
- (?:\n[ ]*)? # one optional newline followed by spaces
-
- \[
- (.*?) # id = $3
- \]
-
- )
- }xs',
- array(&$this, '_doImages_reference_callback'), $text);
-
- #
- # Next, handle inline images: 
- # Don't forget: encode * and _
- #
- $text = preg_replace_callback('{
- ( # wrap whole match in $1
- !\[
- ('.$this->nested_brackets_re.') # alt text = $2
- \]
- \s? # One optional whitespace character
- \( # literal paren
- [ \n]*
- (?:
- <(\S*)> # src url = $3
- |
- ('.$this->nested_url_parenthesis_re.') # src url = $4
- )
- [ \n]*
- ( # $5
- ([\'"]) # quote char = $6
- (.*?) # title = $7
- \6 # matching quote
- [ \n]*
- )? # title is optional
- \)
- )
- }xs',
- array(&$this, '_doImages_inline_callback'), $text);
-
- return $text;
- }
- function _doImages_reference_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $link_id = strtolower($matches[3]);
-
- if ($link_id == "") {
- $link_id = strtolower($alt_text); # for shortcut links like ![this][].
- }
-
- $alt_text = $this->encodeAttribute($alt_text);
- if (isset($this->urls[$link_id])) {
- $url = $this->encodeAttribute($this->urls[$link_id]);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($this->titles[$link_id])) {
- $title = $this->titles[$link_id];
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\"";
- }
- $result .= $this->empty_element_suffix;
- $result = $this->hashPart($result);
- }
- else {
- # If there's no such link ID, leave intact:
- $result = $whole_match;
- }
-
- return $result;
- }
- function _doImages_inline_callback($matches) {
- $whole_match = $matches[1];
- $alt_text = $matches[2];
- $url = $matches[3] == '' ? $matches[4] : $matches[3];
- $title =& $matches[7];
-
- $alt_text = $this->encodeAttribute($alt_text);
- $url = $this->encodeAttribute($url);
- $result = "<img src=\"$url\" alt=\"$alt_text\"";
- if (isset($title)) {
- $title = $this->encodeAttribute($title);
- $result .= " title=\"$title\""; # $title already quoted
- }
- $result .= $this->empty_element_suffix;
-
- return $this->hashPart($result);
- }
-
-
- function doHeaders($text) {
- # Setext-style headers:
- # Header 1
- # ========
- #
- # Header 2
- # --------
- #
- $text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx',
- array(&$this, '_doHeaders_callback_setext'), $text);
-
- # atx-style headers:
- # # Header 1
- # ## Header 2
- # ## Header 2 with closing hashes ##
- # ...
- # ###### Header 6
- #
- $text = preg_replace_callback('{
- ^(\#{1,6}) # $1 = string of #\'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #\'s (not counted)
- \n+
- }xm',
- array(&$this, '_doHeaders_callback_atx'), $text);
-
- return $text;
- }
- function _doHeaders_callback_setext($matches) {
- # Terrible hack to check we haven't found an empty list item.
- if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1]))
- return $matches[0];
-
- $level = $matches[2]{0} == '=' ? 1 : 2;
- $block = "<h$level>".$this->runSpanGamut($matches[1])."</h$level>";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
- function _doHeaders_callback_atx($matches) {
- $level = strlen($matches[1]);
- $block = "<h$level>".$this->runSpanGamut($matches[2])."</h$level>";
- return "\n" . $this->hashBlock($block) . "\n\n";
- }
-
-
- function doLists($text) {
- #
- # Form HTML ordered (numbered) and unordered (bulleted) lists.
- #
- $less_than_tab = $this->tab_width - 1;
-
- # Re-usable patterns to match list item bullets and number markers:
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
- $markers_relist = array(
- $marker_ul_re => $marker_ol_re,
- $marker_ol_re => $marker_ul_re,
- );
-
- foreach ($markers_relist as $marker_re => $other_marker_re) {
- # Re-usable pattern to match any entirel ul or ol list:
- $whole_list_re = '
- ( # $1 = whole list
- ( # $2
- ([ ]{0,'.$less_than_tab.'}) # $3 = number of spaces
- ('.$marker_re.') # $4 = first list item marker
- [ ]+
- )
- (?s:.+?)
- ( # $5
- \z
- |
- \n{2,}
- (?=\S)
- (?! # Negative lookahead for another list item marker
- [ ]*
- '.$marker_re.'[ ]+
- )
- |
- (?= # Lookahead for another kind of list
- \n
- \3 # Must have the same indentation
- '.$other_marker_re.'[ ]+
- )
- )
- )
- '; // mx
-
- # We use a different prefix before nested lists than top-level lists.
- # See extended comment in _ProcessListItems().
-
- if ($this->list_level) {
- $text = preg_replace_callback('{
- ^
- '.$whole_list_re.'
- }mx',
- array(&$this, '_doLists_callback'), $text);
- }
- else {
- $text = preg_replace_callback('{
- (?:(?<=\n)\n|\A\n?) # Must eat the newline
- '.$whole_list_re.'
- }mx',
- array(&$this, '_doLists_callback'), $text);
- }
- }
-
- return $text;
- }
- function _doLists_callback($matches) {
- # Re-usable patterns to match list item bullets and number markers:
- $marker_ul_re = '[*+-]';
- $marker_ol_re = '\d+[\.]';
- $marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
- $list = $matches[1];
- $list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol";
-
- $marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re );
-
- $list .= "\n";
- $result = $this->processListItems($list, $marker_any_re);
-
- $result = $this->hashBlock("<$list_type>\n" . $result . "</$list_type>");
- return "\n". $result ."\n\n";
- }
-
- var $list_level = 0;
-
- function processListItems($list_str, $marker_any_re) {
- #
- # Process the contents of a single ordered or unordered list, splitting it
- # into individual list items.
- #
- # The $this->list_level global keeps track of when we're inside a list.
- # Each time we enter a list, we increment it; when we leave a list,
- # we decrement. If it's zero, we're not in a list anymore.
- #
- # We do this because when we're not inside a list, we want to treat
- # something like this:
- #
- # I recommend upgrading to version
- # 8. Oops, now this line is treated
- # as a sub-list.
- #
- # As a single paragraph, despite the fact that the second line starts
- # with a digit-period-space sequence.
- #
- # Whereas when we're inside a list (or sub-list), that line will be
- # treated as the start of a sub-list. What a kludge, huh? This is
- # an aspect of Markdown's syntax that's hard to parse perfectly
- # without resorting to mind-reading. Perhaps the solution is to
- # change the syntax rules such that sub-lists must start with a
- # starting cardinal number; e.g. "1." or "a.".
-
- $this->list_level++;
-
- # trim trailing blank lines:
- $list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
-
- $list_str = preg_replace_callback('{
- (\n)? # leading line = $1
- (^[ ]*) # leading whitespace = $2
- ('.$marker_any_re.' # list marker and space = $3
- (?:[ ]+|(?=\n)) # space only required if item is not empty
- )
- ((?s:.*?)) # list item text = $4
- (?:(\n+(?=\n))|\n) # tailing blank line = $5
- (?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
- }xm',
- array(&$this, '_processListItems_callback'), $list_str);
-
- $this->list_level--;
- return $list_str;
- }
- function _processListItems_callback($matches) {
- $item = $matches[4];
- $leading_line =& $matches[1];
- $leading_space =& $matches[2];
- $marker_space = $matches[3];
- $tailing_blank_line =& $matches[5];
-
- if ($leading_line || $tailing_blank_line ||
- preg_match('/\n{2,}/', $item))
- {
- # Replace marker with the appropriate whitespace indentation
- $item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
- $item = $this->runBlockGamut($this->outdent($item)."\n");
- }
- else {
- # Recursion for sub-lists:
- $item = $this->doLists($this->outdent($item));
- $item = preg_replace('/\n+$/', '', $item);
- $item = $this->runSpanGamut($item);
- }
-
- return "<li>" . $item . "</li>\n";
- }
-
-
- function doCodeBlocks($text) {
- #
- # Process Markdown `<pre><code>` blocks.
- #
- $text = preg_replace_callback('{
- (?:\n\n|\A\n?)
- ( # $1 = the code block -- one or more lines, starting with a space/tab
- (?>
- [ ]{'.$this->tab_width.'} # Lines must start with a tab or a tab-width of spaces
- .*\n+
- )+
- )
- ((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z) # Lookahead for non-space at line-start, or end of doc
- }xm',
- array(&$this, '_doCodeBlocks_callback'), $text);
-
- return $text;
- }
- function _doCodeBlocks_callback($matches) {
- $codeblock = $matches[1];
-
- $codeblock = $this->outdent($codeblock);
- $codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
-
- # trim leading newlines and trailing newlines
- $codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
-
- $codeblock = "<pre><code>$codeblock\n</code></pre>";
- return "\n\n".$this->hashBlock($codeblock)."\n\n";
- }
-
-
- function makeCodeSpan($code) {
- #
- # Create a code span markup for $code. Called from handleSpanToken.
- #
- $code = htmlspecialchars(trim($code), ENT_NOQUOTES);
- return $this->hashPart("<code>$code</code>");
- }
-
-
- var $em_relist = array(
- '' => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S|$)(?![\.,:;]\s)',
- '*' => '(?<=\S|^)(?<!\*)\*(?!\*)',
- '_' => '(?<=\S|^)(?<!_)_(?!_)',
- );
- var $strong_relist = array(
- '' => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S|$)(?![\.,:;]\s)',
- '**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)',
- '__' => '(?<=\S|^)(?<!_)__(?!_)',
- );
- var $em_strong_relist = array(
- '' => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S|$)(?![\.,:;]\s)',
- '***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)',
- '___' => '(?<=\S|^)(?<!_)___(?!_)',
- );
- var $em_strong_prepared_relist;
-
- function prepareItalicsAndBold() {
- #
- # Prepare regular expressions for searching emphasis tokens in any
- # context.
- #
- foreach ($this->em_relist as $em => $em_re) {
- foreach ($this->strong_relist as $strong => $strong_re) {
- # Construct list of allowed token expressions.
- $token_relist = array();
- if (isset($this->em_strong_relist["$em$strong"])) {
- $token_relist[] = $this->em_strong_relist["$em$strong"];
- }
- $token_relist[] = $em_re;
- $token_relist[] = $strong_re;
-
- # Construct master expression from list.
- $token_re = '{('. implode('|', $token_relist) .')}';
- $this->em_strong_prepared_relist["$em$strong"] = $token_re;
- }
- }
- }
-
- function doItalicsAndBold($text) {
- $token_stack = array('');
- $text_stack = array('');
- $em = '';
- $strong = '';
- $tree_char_em = false;
-
- while (1) {
- #
- # Get prepared regular expression for seraching emphasis tokens
- # in current context.
- #
- $token_re = $this->em_strong_prepared_relist["$em$strong"];
-
- #
- # Each loop iteration search for the next emphasis token.
- # Each token is then passed to handleSpanToken.
- #
- $parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
- $text_stack[0] .= $parts[0];
- $token =& $parts[1];
- $text =& $parts[2];
-
- if (empty($token)) {
- # Reached end of text span: empty stack without emitting.
- # any more emphasis.
- while ($token_stack[0]) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
- break;
- }
-
- $token_len = strlen($token);
- if ($tree_char_em) {
- # Reached closing marker while inside a three-char emphasis.
- if ($token_len == 3) {
- # Three-char closing marker, close em and strong.
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<strong><em>$span</em></strong>";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- $strong = '';
- } else {
- # Other closing marker: close one em or strong and
- # change current token state to match the other
- $token_stack[0] = str_repeat($token{0}, 3-$token_len);
- $tag = $token_len == 2 ? "strong" : "em";
- $span = $text_stack[0];
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span</$tag>";
- $text_stack[0] = $this->hashPart($span);
- $$tag = ''; # $$tag stands for $em or $strong
- }
- $tree_char_em = false;
- } else if ($token_len == 3) {
- if ($em) {
- # Reached closing marker for both em and strong.
- # Closing strong marker:
- for ($i = 0; $i < 2; ++$i) {
- $shifted_token = array_shift($token_stack);
- $tag = strlen($shifted_token) == 2 ? "strong" : "em";
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<$tag>$span</$tag>";
- $text_stack[0] .= $this->hashPart($span);
- $$tag = ''; # $$tag stands for $em or $strong
- }
- } else {
- # Reached opening three-char emphasis marker. Push on token
- # stack; will be handled by the special condition above.
- $em = $token{0};
- $strong = "$em$em";
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $tree_char_em = true;
- }
- } else if ($token_len == 2) {
- if ($strong) {
- # Unwind any dangling emphasis marker:
- if (strlen($token_stack[0]) == 1) {
- $text_stack[1] .= array_shift($token_stack);
- $text_stack[0] .= array_shift($text_stack);
- }
- # Closing strong marker:
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<strong>$span</strong>";
- $text_stack[0] .= $this->hashPart($span);
- $strong = '';
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $strong = $token;
- }
- } else {
- # Here $token_len == 1
- if ($em) {
- if (strlen($token_stack[0]) == 1) {
- # Closing emphasis marker:
- array_shift($token_stack);
- $span = array_shift($text_stack);
- $span = $this->runSpanGamut($span);
- $span = "<em>$span</em>";
- $text_stack[0] .= $this->hashPart($span);
- $em = '';
- } else {
- $text_stack[0] .= $token;
- }
- } else {
- array_unshift($token_stack, $token);
- array_unshift($text_stack, '');
- $em = $token;
- }
- }
- }
- return $text_stack[0];
- }
-
-
- function doBlockQuotes($text) {
- $text = preg_replace_callback('/
- ( # Wrap whole match in $1
- (?>
- ^[ ]*>[ ]? # ">" at the start of a line
- .+\n # rest of the first line
- (.+\n)* # subsequent consecutive lines
- \n* # blanks
- )+
- )
- /xm',
- array(&$this, '_doBlockQuotes_callback'), $text);
-
- return $text;
- }
- function _doBlockQuotes_callback($matches) {
- $bq = $matches[1];
- # trim one level of quoting - trim whitespace-only lines
- $bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
- $bq = $this->runBlockGamut($bq); # recurse
-
- $bq = preg_replace('/^/m', " ", $bq);
- # These leading spaces cause problem with <pre> content,
- # so we need to fix that:
- $bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx',
- array(&$this, '_doBlockQuotes_callback2'), $bq);
-
- return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n";
- }
- function _doBlockQuotes_callback2($matches) {
- $pre = $matches[1];
- $pre = preg_replace('/^ /m', '', $pre);
- return $pre;
- }
-
-
- function formParagraphs($text) {
- #
- # Params:
- # $text - string to process with html <p> tags
- #
- # Strip leading and trailing lines:
- $text = preg_replace('/\A\n+|\n+\z/', '', $text);
-
- $grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
- #
- # Wrap <p> tags and unhashify HTML blocks
- #
- foreach ($grafs as $key => $value) {
- if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
- # Is a paragraph.
- $value = $this->runSpanGamut($value);
- $value = preg_replace('/^([ ]*)/', "<p>", $value);
- $value .= "</p>";
- $grafs[$key] = $this->unhash($value);
- }
- else {
- # Is a block.
- # Modify elements of @grafs in-place...
- $graf = $value;
- $block = $this->html_hashes[$graf];
- $graf = $block;
-// if (preg_match('{
-// \A
-// ( # $1 = <div> tag
-// <div \s+
-// [^>]*
-// \b
-// markdown\s*=\s* ([\'"]) # $2 = attr quote char
-// 1
-// \2
-// [^>]*
-// >
-// )
-// ( # $3 = contents
-// .*
-// )
-// (</div>) # $4 = closing tag
-// \z
-// }xs', $block, $matches))
-// {
-// list(, $div_open, , $div_content, $div_close) = $matches;
-//
-// # We can't call Markdown(), because that resets the hash;
-// # that initialization code should be pulled into its own sub, though.
-// $div_content = $this->hashHTMLBlocks($div_content);
-//
-// # Run document gamut methods on the content.
-// foreach ($this->document_gamut as $method => $priority) {
-// $div_content = $this->$method($div_content);
-// }
-//
-// $div_open = preg_replace(
-// '{\smarkdown\s*=\s*([\'"]).+?\1}', '', $div_open);
-//
-// $graf = $div_open . "\n" . $div_content . "\n" . $div_close;
-// }
- $grafs[$key] = $graf;
- }
- }
-
- return implode("\n\n", $grafs);
- }
-
-
- function encodeAttribute($text) {
- #
- # Encode text for a double-quoted HTML attribute. This function
- # is *not* suitable for attributes enclosed in single quotes.
- #
- $text = $this->encodeAmpsAndAngles($text);
- $text = str_replace('"', '"', $text);
- return $text;
- }
-
-
- function encodeAmpsAndAngles($text) {
- #
- # Smart processing for ampersands and angle brackets that need to
- # be encoded. Valid character entities are left alone unless the
- # no-entities mode is set.
- #
- if ($this->no_entities) {
- $text = str_replace('&', '&', $text);
- } else {
- # Ampersand-encoding based entirely on Nat Irons's Amputator
- # MT plugin: <http://bumppo.net/projects/amputator/>
- $text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/',
- '&', $text);;
- }
- # Encode remaining <'s
- $text = str_replace('<', '<', $text);
-
- return $text;
- }
-
-
- function doAutoLinks($text) {
- $text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i',
- array(&$this, '_doAutoLinks_url_callback'), $text);
-
- # Email addresses: <address@domain.foo>
- $text = preg_replace_callback('{
- <
- (?:mailto:)?
- (
- (?:
- [-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
- |
- ".*?"
- )
- \@
- (?:
- [-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
- |
- \[[\d.a-fA-F:]+\] # IPv4 & IPv6
- )
- )
- >
- }xi',
- array(&$this, '_doAutoLinks_email_callback'), $text);
-
- return $text;
- }
- function _doAutoLinks_url_callback($matches) {
- $url = $this->encodeAttribute($matches[1]);
- $link = "<a href=\"$url\">$url</a>";
- return $this->hashPart($link);
- }
- function _doAutoLinks_email_callback($matches) {
- $address = $matches[1];
- $link = $this->encodeEmailAddress($address);
- return $this->hashPart($link);
- }
-
-
- function encodeEmailAddress($addr) {
- #
- # Input: an email address, e.g. "foo@example.com"
- #
- # Output: the email address as a mailto link, with each character
- # of the address encoded as either a decimal or hex entity, in
- # the hopes of foiling most address harvesting spam bots. E.g.:
- #
- # <p><a href="mailto:foo
- # @example.co
- # m">foo@exampl
- # e.com</a></p>
- #
- # Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
- # With some optimizations by Milian Wolff.
- #
- $addr = "mailto:" . $addr;
- $chars = preg_split('/(?<!^)(?!$)/', $addr);
- $seed = (int)abs(crc32($addr) / strlen($addr)); # Deterministic seed.
-
- foreach ($chars as $key => $char) {
- $ord = ord($char);
- # Ignore non-ascii chars.
- if ($ord < 128) {
- $r = ($seed * (1 + $key)) % 100; # Pseudo-random function.
- # roughly 10% raw, 45% hex, 45% dec
- # '@' *must* be encoded. I insist.
- if ($r > 90 && $char != '@') /* do nothing */;
- else if ($r < 45) $chars[$key] = '&#x'.dechex($ord).';';
- else $chars[$key] = '&#'.$ord.';';
- }
- }
-
- $addr = implode('', $chars);
- $text = implode('', array_slice($chars, 7)); # text without `mailto:`
- $addr = "<a href=\"$addr\">$text</a>";
-
- return $addr;
- }
-
-
- function parseSpan($str) {
- #
- # Take the string $str and parse it into tokens, hashing embeded HTML,
- # escaped characters and handling code spans.
- #
- $output = '';
-
- $span_re = '{
- (
- \\\\'.$this->escape_chars_re.'
- |
- (?<![`\\\\])
- `+ # code span marker
- '.( $this->no_markup ? '' : '
- |
- <!-- .*? --> # comment
- |
- <\?.*?\?> | <%.*?%> # processing instruction
- |
- <[!$]?[-a-zA-Z0-9:_]+ # regular tags
- (?>
- \s
- (?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
- )?
- >
- |
- <[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
- |
- </[-a-zA-Z0-9:_]+\s*> # closing tag
- ').'
- )
- }xs';
-
- while (1) {
- #
- # Each loop iteration seach for either the next tag, the next
- # openning code span marker, or the next escaped character.
- # Each token is then passed to handleSpanToken.
- #
- $parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE);
-
- # Create token from text preceding tag.
- if ($parts[0] != "") {
- $output .= $parts[0];
- }
-
- # Check if we reach the end.
- if (isset($parts[1])) {
- $output .= $this->handleSpanToken($parts[1], $parts[2]);
- $str = $parts[2];
- }
- else {
- break;
- }
- }
-
- return $output;
- }
-
-
- function handleSpanToken($token, &$str) {
- #
- # Handle $token provided by parseSpan by determining its nature and
- # returning the corresponding value that should replace it.
- #
- switch ($token{0}) {
- case "\\":
- return $this->hashPart("&#". ord($token{1}). ";");
- case "`":
- # Search for end marker in remaining text.
- if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm',
- $str, $matches))
- {
- $str = $matches[2];
- $codespan = $this->makeCodeSpan($matches[1]);
- return $this->hashPart($codespan);
- }
- return $token; // return as text since no ending marker found.
- default:
- return $this->hashPart($token);
- }
- }
-
-
- function outdent($text) {
- #
- # Remove one level of line-leading tabs or spaces
- #
- return preg_replace('/^(\t|[ ]{1,'.$this->tab_width.'})/m', '', $text);
- }
-
-
- # String length function for detab. `_initDetab` will create a function to
- # hanlde UTF-8 if the default function does not exist.
- var $utf8_strlen = 'mb_strlen';
-
- function detab($text) {
- #
- # Replace tabs with the appropriate amount of space.
- #
- # For each line we separate the line in blocks delemited by
- # tab characters. Then we reconstruct every line by adding the
- # appropriate number of space between each blocks.
-
- $text = preg_replace_callback('/^.*\t.*$/m',
- array(&$this, '_detab_callback'), $text);
-
- return $text;
- }
- function _detab_callback($matches) {
- $line = $matches[0];
- $strlen = $this->utf8_strlen; # strlen function for UTF-8.
-
- # Split in blocks.
- $blocks = explode("\t", $line);
- # Add each blocks to the line.
- $line = $blocks[0];
- unset($blocks[0]); # Do not add first block twice.
- foreach ($blocks as $block) {
- # Calculate amount of space, insert spaces, insert block.
- $amount = $this->tab_width -
- $strlen($line, 'UTF-8') % $this->tab_width;
- $line .= str_repeat(" ", $amount) . $block;
- }
- return $line;
- }
- function _initDetab() {
- #
- # Check for the availability of the function in the `utf8_strlen` property
- # (initially `mb_strlen`). If the function is not available, create a
- # function that will loosely count the number of UTF-8 characters with a
- # regular expression.
- #
- if (function_exists($this->utf8_strlen)) return;
- $this->utf8_strlen = create_function('$text', 'return preg_match_all(
- "/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/",
- $text, $m);');
- }
-
-
- function unhash($text) {
- #
- # Swap back in all the tags hashed by _HashHTMLBlocks.
- #
- return preg_replace_callback('/(.)\x1A[0-9]+\1/',
- array(&$this, '_unhash_callback'), $text);
- }
- function _unhash_callback($matches) {
- return $this->html_hashes[$matches[0]];
- }
-
-}
-
-/*
-
-PHP Markdown
-============
-
-Description
------------
-
-This is a PHP translation of the original Markdown formatter written in
-Perl by John Gruber.
-
-Markdown is a text-to-HTML filter; it translates an easy-to-read /
-easy-to-write structured text format into HTML. Markdown's text format
-is mostly similar to that of plain text email, and supports features such
-as headers, *emphasis*, code blocks, blockquotes, and links.
-
-Markdown's syntax is designed not as a generic markup language, but
-specifically to serve as a front-end to (X)HTML. You can use span-level
-HTML tags anywhere in a Markdown document, and you can use block level
-HTML tags (like <div> and <table> as well).
-
-For more information about Markdown's syntax, see:
-
-<http://daringfireball.net/projects/markdown/>
-
-
-Bugs
-----
-
-To file bug reports please send email to:
-
-<michel.fortin@michelf.ca>
-
-Please include with your report: (1) the example input; (2) the output you
-expected; (3) the output Markdown actually produced.
-
-
-Version History
----------------
-
-See the readme file for detailed release notes for this version.
-
-
-Copyright and License
----------------------
-
-PHP Markdown
-Copyright (c) 2004-2013 Michel Fortin
-<http://michelf.ca/>
-All rights reserved.
-
-Based on Markdown
-Copyright (c) 2003-2006 John Gruber
-<http://daringfireball.net/>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-* Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
-* Neither the name "Markdown" nor the names of its contributors may
- be used to endorse or promote products derived from this software
- without specific prior written permission.
-
-This software is provided by the copyright holders and contributors "as
-is" and any express or implied warranties, including, but not limited
-to, the implied warranties of merchantability and fitness for a
-particular purpose are disclaimed. In no event shall the copyright owner
-or contributors be liable for any direct, indirect, incidental, special,
-exemplary, or consequential damages (including, but not limited to,
-procurement of substitute goods or services; loss of use, data, or
-profits; or business interruption) however caused and on any theory of
-liability, whether in contract, strict liability, or tort (including
-negligence or otherwise) arising in any way out of the use of this
-software, even if advised of the possibility of such damage.
-
-*/
-?>
\ No newline at end of file