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git-svn-id: http://svn.automattic.com/wordpress/trunk@46 1a063a9b-81f0-0310-95a4-ce76da25c4cd
501 lines
14 KiB
PHP
501 lines
14 KiB
PHP
<?php
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/*
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This is Textile
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A Humane Web Text Generator
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Version 1.0
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21 Feb, 2003
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Copyright (c) 2003, Dean Allen, www.textism.com
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All rights reserved.
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_______
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LICENSE
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name Textile nor the names of its contributors may be used to
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endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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_____________
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USING TEXTILE
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Block modifier syntax:
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Header: hn.
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Paragraphs beginning with 'hn. ' (where n is 1-6) are wrapped in header tags.
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Example: <h1>Text</h1>
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Header with CSS class: hn(class).
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Paragraphs beginning with 'hn(class). ' receive a CSS class attribute.
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Example: <h1 class="class">Text</h1>
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Paragraph: p. (applied by default)
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Paragraphs beginning with 'p. ' are wrapped in paragraph tags.
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Example: <p>Text</p>
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Paragraph with CSS class: p(class).
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Paragraphs beginning with 'p(class). ' receive a CSS class attribute.
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Example: <p class="class">Text</p>
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Blockquote: bq.
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Paragraphs beginning with 'bq. ' are wrapped in block quote tags.
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Example: <blockquote>Text</blockquote>
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Blockquote with citation: bq(citeurl).
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Paragraphs beginning with 'bq(citeurl). ' receive a citation attribute.
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Example: <blockquote cite="citeurl">Text</blockquote>
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Numeric list: #
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Consecutive paragraphs beginning with # are wrapped in ordered list tags.
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Example: <ol><li>ordered list</li></ol>
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Bulleted list: *
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Consecutive paragraphs beginning with * are wrapped in unordered list tags.
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Example: <ul><li>unordered list</li></ul>
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Phrase modifier syntax:
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_emphasis_ <em>emphasis</em>
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__italic__ <i>italic</i>
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*strong* <strong>strong</strong>
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**bold** <b>bold</b>
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??citation?? <cite>citation</cite>
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-deleted text- <del>deleted</del>
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+inserted text+ <ins>inserted</ins>
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^superscript^ <sup>superscript</sup>
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~subscript~ <sub>subscript</sub>
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@code@ <code>computer code</code>
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==notextile== leave text alone (do not format)
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"linktext":url <a href="url">linktext</a>
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"linktext(title)":url <a href="url" title="title">linktext</a>
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!imageurl! <img src="imageurl" />
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!imageurl(alt text)! <img src="imageurl" alt="alt text" />
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!imageurl!:linkurl <a href="linkurl"><img src="imageurl" /></a>
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ABC(Always Be Closing) <acronym title="Always Be Closing">ABC</acronym>
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*/
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function textile($text) {
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### Basic global changes
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$text = stripslashes($text);
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# turn any incoming ampersands into a dummy character for now.
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# This uses a negative lookahead for alphanumerics followed by a semicolon,
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# implying an incoming html entity, to be skipped
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$text = preg_replace("/&(?![#a-zA-Z0-9]+;)/","x%x%",$text);
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# entify everything
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if (function_exists('mb_encode_numericentity')) {
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$text = encode_high($text);
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} else {
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$text = htmlentities($text,ENT_NOQUOTES,"utf-8");
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}
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# unentify angle brackets and ampersands
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$text = str_replace(array(">", "<", "&"), array(">", "<", "&"), $text);
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# zap carriage returns
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$text = str_replace("\r\n", "\n", $text);
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# zap tabs
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$text = str_replace("\t", "", $text);
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$text = preg_split("/\n/",$text);
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foreach($text as $line){
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$line = trim($line);
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$lineout[] = $line;
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}
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$text = implode("\n",$lineout);
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### Find and replace quick tags
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# double equal signs means <notextile>
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$text = preg_replace('/(^|\s)==(.*)==(\s|$)?/msU','$1<notextile>$2</notextile>$3',$text);
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# image qtag
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$text = preg_replace('/!([^\s\(=]+)\s?(?:\(([^\)]+)\))?!(\s)?/mU','<img src="$1" alt="$2" border="0" />$3',$text);
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# image with hyperlink
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$text = preg_replace('/(<img.+ \/>):(\S+)(\s)/U','<a href="$2">$1</a>$3',$text);
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# hyperlink qtag
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$text = preg_replace(
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'/
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([\s[{(]|[[:punct:]])? # 1 optional space or brackets before
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" # starting "
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([^"\(]+) # 2 text of link
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\s? # opt space
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(?:\(([^\(]*)\))? # 3 opt title attribute in parenths
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": # dividing ":
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(\S+\b) # 4 suppose this is the url
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(\/)? # 5 opt trailing slash
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([^[:alnum:]\/;]*) # 6 opt punctuation after the url
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(\s|$) # 7 either white space or end of string
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/x',
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'$1<a href="$4$5" title="$3">$2</a>$6$7',$text);
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# arrange qtag delineators and replacements in an array
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$qtags = array(
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'\*\*'=>'b',
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'\*'=>'strong',
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'\?\?'=>'cite',
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'-'=>'del',
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'\+'=>'ins',
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'~'=>'sub',
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'@'=>'code');
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# loop through the array, replacing qtags with html
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foreach($qtags as $f=>$r){
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$text = preg_replace(
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'/(^|\s|>)'.$f.'\b(.+)\b([[:punct:]]*)'.$f.'([[:punct:]]{0,2})(\s|$)?/mU',
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'$1<'.$r.'>$2$3</'.$r.'>$4$5',
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$text);
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}
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# some weird bs with underscores and \b word boundaries,
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# so we'll do those on their own
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$text = preg_replace('/(^|\s)__(.*)__([[:punct:]]{0,2})(\s|$)?/mU','$1<i>$2</i>$3$4',$text);
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$text = preg_replace('/(^|\s)_(.*)_([[:punct:]]{0,2})(\s|$)?/mU','$1<em>$2</em>$3$4',$text);
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$text = preg_replace('/\^(.*)\^/mU','<sup>$1</sup>',$text);
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### Find and replace typographic chars and special tags
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# small problem with double quotes at the end of a string
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$text = preg_replace('/"$/',"\" ", $text);
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# NB: all these will wreak havoc inside <html> tags
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$glyph_search = array(
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'/([^\s[{(>])?\'(?(1)|(?=\s|s\b))/', # single closing
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'/\'/', # single opening
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'/([^\s[{(])?"(?(1)|(?=\s))/', # double closing
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'/"/', # double opening
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'/\b( )?\.{3}/', # ellipsis
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'/\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/', # 3+ uppercase acronym
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'/(^|[^"][>\s])([A-Z][A-Z0-9 ]{2,})([^<a-z0-9]|$)/', # 3+ uppercase caps
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'/\s?--\s?/', # em dash
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'/\s-\s/', # en dash
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'/(\d+) ?x ?(\d+)/', # dimension sign
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'/\b ?[([]TM[])]/i', # trademark
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'/\b ?[([]R[])]/i', # registered
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'/\b ?[([]C[])]/i'); # copyright
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$glyph_replace = array(
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'$1’$2', # single closing
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'‘', # single opening
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'$1”', # double closing
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'“', # double opening
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'$1…', # ellipsis
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'<acronym title="$2">$1</acronym>', # 3+ uppercase acronym
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'$1<span class="caps">$2</span>$3', # 3+ uppercase caps
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'—', # em dash
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' – ', # en dash
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'$1×$2', # dimension sign
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'™', # trademark
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'®', # registered
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'©'); # copyright
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# set toggle for turning off replacements between <code> or <pre>
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$codepre = false;
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# if there is no html, do a simple search and replace
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if(!preg_match("/<.*>/",$text)){
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$text = preg_replace($glyph_search,$glyph_replace,$text);
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} else {
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# else split the text into an array at <.*>
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$text = preg_split("/(<.*>)/U",$text,-1,PREG_SPLIT_DELIM_CAPTURE);
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foreach($text as $line){
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# matches are off if we're between <code>, <pre> etc.
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if(preg_match('/<(code|pre|kbd|notextile)>/i',$line)){$codepre = true; }
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if(preg_match('/<\/(code|pre|kbd|notextile)>/i',$line)){$codepre = false; }
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if(!preg_match("/<.*>/",$line) && $codepre == false){
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$line = preg_replace($glyph_search,$glyph_replace,$line);
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}
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# convert htmlspecial if between <code>
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if ($codepre == true){
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$line = htmlspecialchars($line,ENT_NOQUOTES,"UTF-8");
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$line = str_replace("<pre>","<pre>",$line);
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$line = str_replace("<code>","<code>",$line);
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$line = str_replace("<notextile>","<notextile>",$line);
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$line = str_replace("<kbd>","<kbd>",$line);
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}
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# each line gets pushed to a new array
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$glyph_out[] = $line;
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}
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# $text is now the new array, cast to a string
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$text = implode('',$glyph_out);
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}
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### Block level formatting
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# deal with forced breaks; this is going to be a problem between
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# <pre> tags, but we'll clean them later
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$text = preg_replace("/(\S)(_*)([[:punct:]]*) *\n([^#*\s])/", "$1$2$3<br />$4", $text);
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# might be a problem with lists
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$text = str_replace("l><br />", "l>\n", $text);
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# clear out multiple newlines for now
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# $text = preg_replace("/\n+/","\n",$text);
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# split the text into an array by newlines
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$text = preg_split("/\n/",$text);
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array_push($text," ");
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$list = '';
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$pre = false;
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$block_find = array(
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'/^\s?\*\s(.*)/', # bulleted list *
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'/^\s?#\s(.*)/', # numeric list #
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'/^bq\. (.*)/', # blockquote bq.
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'/^h(\d)\(([[:alnum:]]+)\)\.\s(.*)/', # header hn(class). w/ css class
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'/^h(\d)\. (.*)/', # plain header hn.
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'/^p\(([[:alnum:]]+)\)\.\s(.*)/', # para p(class). w/ css class
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'/^p\. (.*)/i', # plain paragraph
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'/^([^\t ]+.*)/i' # remaining plain paragraph
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);
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$block_replace = array(
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"\t\t<li>$1</li>",
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"\t\t\t<li>$1</li>",
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"\t<blockquote>$1</blockquote>",
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"\t<h$1 class=\"$2\">$3</h$1>$4",
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"\t<h$1>$2</h$1>$3",
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"\t<p class=\"$1\">$2</p>$3",
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"\t<p>$1</p>",
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"\t<p>$1</p>$2"
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);
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# loop through lines
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foreach($text as $line){
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# matches are off if we're between <pre> or <code> tags
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if(preg_match('/<pre>/i',$line)){$pre = true; }
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# deal with block replacements first, then see if we're in a list
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if ($pre == false){
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$line = preg_replace($block_find,$block_replace,$line);
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}
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# kill any br tags that slipped in earlier
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if ($pre == true){
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$line = str_replace("<br />","\n",$line);
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}
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# matches back on after </pre>
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if(preg_match('/<\/pre>/i',$line)){$pre = false; }
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# on entry to a list, $list switches to a value
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# two tabs means unordered list
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if ($list == '' && preg_match('/^\t\t<li>/',$line)){
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$list = "ul";
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$line = preg_replace('/^(\t\t<li>.*)/',"\t<ul>\n$1",$line);
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} else if ($list == '' && preg_match('/^\t\t\t<li>/',$line)){
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$list = "ol";
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$line = preg_replace('/^\t(\t\t<li>.*)/',"\t<ol>\n$1",$line);
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# at the end of a ul
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} else if ($list == 'ul' && !preg_match('/^\t\t<li>/',$line)){
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$list = '';
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$line = preg_replace('/^(.*)$/',"\t</ul>\n$1",$line);
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# at the end of a ol
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} else if ($list == 'ol' && !preg_match('/^\t\t\t<li>/',$line)){
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$list = '';
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$line = preg_replace('/^(.*)$/',"\t</ol>\n$1",$line);
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}
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# push each line to a new array once processed
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$block_out[] = $line;
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}
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$text = implode("\n",$block_out);
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#clean up <notextile>
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$text = preg_replace('/<\/?notextile>/', "",$text);
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# turn the temp char back to an ampersand entity
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$text = str_replace("x%x%","&",$text);
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# Newline linebreaks, just for markup tidiness
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$text = str_replace("<br />","<br />\n",$text);
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return $text;
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}
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function callback_url($text,$title='',$url) {
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$out = 'a href="'.$url.'"';
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$out.=($title!='')?' title="'.$title.'"':'';
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$out.='>$text</a>';
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return $out;
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}
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function textile_popup_help($name,$helpvar,$windowW,$windowH) {
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$out = $name;
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$out .= ' <a target="_blank" href="http://www.textpattern.com/help/?item='.$helpvar.'"';
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$out .= ' onclick="window.open(this.href, \'popupwindow\', \'width='.$windowW.',height='.$windowH.',scrollbars,resizable\'); return false;" style="color:blue;background-color:#ddd">?</a><br />';
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print $out;
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}
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function encode_high($text) {
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$cmap = cmap();
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return mb_encode_numericentity($text, $cmap, "UTF-8");
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}
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function decode_high($text) {
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$cmap = cmap();
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return mb_decode_numericentity($text, $cmap, "UTF-8");
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}
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function cmap() {
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$f = 0xffff;
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$cmap = array(
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160, 255, 0, $f,
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402, 402, 0, $f,
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913, 929, 0, $f,
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931, 937, 0, $f,
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945, 969, 0, $f,
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977, 978, 0, $f,
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982, 982, 0, $f,
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8226, 8226, 0, $f,
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8230, 8230, 0, $f,
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8242, 8243, 0, $f,
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8254, 8254, 0, $f,
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8260, 8260, 0, $f,
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8465, 8465, 0, $f,
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8472, 8472, 0, $f,
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8476, 8476, 0, $f,
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8482, 8482, 0, $f,
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8501, 8501, 0, $f,
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8592, 8596, 0, $f,
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8629, 8629, 0, $f,
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8656, 8660, 0, $f,
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8704, 8704, 0, $f,
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8706, 8707, 0, $f,
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8709, 8709, 0, $f,
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8711, 8713, 0, $f,
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8715, 8715, 0, $f,
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8719, 8719, 0, $f,
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8721, 8722, 0, $f,
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8727, 8727, 0, $f,
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8730, 8730, 0, $f,
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8733, 8734, 0, $f,
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8736, 8736, 0, $f,
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8743, 8747, 0, $f,
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8756, 8756, 0, $f,
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8764, 8764, 0, $f,
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8773, 8773, 0, $f,
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8776, 8776, 0, $f,
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8800, 8801, 0, $f,
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8804, 8805, 0, $f,
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8834, 8836, 0, $f,
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8838, 8839, 0, $f,
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8853, 8853, 0, $f,
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8855, 8855, 0, $f,
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8869, 8869, 0, $f,
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8901, 8901, 0, $f,
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8968, 8971, 0, $f,
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9001, 9002, 0, $f,
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9674, 9674, 0, $f,
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9824, 9824, 0, $f,
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9827, 9827, 0, $f,
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9829, 9830, 0, $f,
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338, 339, 0, $f,
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352, 353, 0, $f,
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376, 376, 0, $f,
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710, 710, 0, $f,
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732, 732, 0, $f,
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8194, 8195, 0, $f,
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8201, 8201, 0, $f,
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8204, 8207, 0, $f,
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8211, 8212, 0, $f,
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8216, 8218, 0, $f,
|
|
8218, 8218, 0, $f,
|
|
8220, 8222, 0, $f,
|
|
8224, 8225, 0, $f,
|
|
8240, 8240, 0, $f,
|
|
8249, 8250, 0, $f,
|
|
8364, 8364, 0, $f
|
|
);
|
|
|
|
return $cmap;
|
|
}
|
|
|
|
|
|
function linkit($text,$title,$url){
|
|
$url = preg_replace("/&(?!amp;)/","&",$url);
|
|
$out = '<a href="'.$url;
|
|
if ($title!='') {
|
|
$title = trim($title);
|
|
$out .= ' title="'.$title;
|
|
}
|
|
$out .= '>'.$text.'</a>';
|
|
|
|
return $out;
|
|
}
|
|
|
|
|
|
?>
|