208 lines
5.2 KiB
PHP
208 lines
5.2 KiB
PHP
#!/usr/bin/env php
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<?php
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/**
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* vp8_doc_tools.php - Functions used when generating the
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* On2 VP8 user documentation.
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*
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* Requirements
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*
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* PHP Markdown Extra
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* http://michelf.com/projects/php-markdown/extra/
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*
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* PHP SmartyPants
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* http://michelf.com/projects/php-smartypants/
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*
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* GeSHI
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* http://qbnz.com/highlighter/
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*
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* ASCIIMathPHP
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* http://tinyurl.com/asciimathphp
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*
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* HTML::Toc
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* http://search.cpan.org/~fvulto/HTML-Toc-0.91/Toc.pod
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*
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*
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* April 2009 - Lou Quillio <lou.quillio@on2.com>
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*
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**********************************************************/
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// Includes
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include_once('PHP-Markdown-Extra-1.2.3/markdown.php');
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include_once('PHP-SmartyPants-1.5.1e/smartypants.php');
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include_once('ASCIIMathPHP-2.0/ASCIIMathPHP-2.0.cfg.php');
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require_once('ASCIIMathPHP-2.0/ASCIIMathPHP-2.0.class.php');
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include_once('geshi/geshi.php');
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// Paths and Scripts
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$geshi_lang = 'geshi/geshi/'; // GeSHi language files
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$toc_script = './do_toc.pl';
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/**
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* ASCIIMathML parser
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* http://tinyurl.com/ASCIIMathPHP
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*
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* @PARAM mtch_arr array - Array of ASCIIMath expressions
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* as returned by preg_replace_callback([pattern]). First
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* dimension is the full matched string (with delimiter);
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* 2nd dimension is the undelimited contents (typically
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* a capture group).
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*
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**********************************************************/
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function ASCIIMathPHPCallback($mtch_arr)
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{
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$txt = trim($mtch_arr[1]);
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static $asciimath;
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if (!isset($asciimath)) $asciimath = new ASCIIMathPHP($symbol_arr);
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$math_attr_arr = array('displaystyle' => 'true');
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$asciimath->setExpr($txt);
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$asciimath->genMathML($math_attr_arr);
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return($asciimath->getMathML());
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}
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/**
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* fix_asciiMath()
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*
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* ASCIIMath pretty-prints its output, with linefeeds
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* and tabs. Causes unexpected behavior in some renderers.
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* This flattens <math> blocks.
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*
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* @PARAM page_body str - The <body> element of an
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* XHTML page to transform.
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*
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**********************************************************/
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function fix_asciiMath($page_body)
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{
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$out = FALSE;
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// Remove linefeeds and whitespace in <math> elements
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$tags_bad = array('/(<math.*?>)\n*\s*/'
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, '/(<mstyle.*?>)\n*\s*/'
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, '/(<\/mstyle>)\n*\s*/'
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, '/(<mrow.*?>)\n*\s*/'
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, '/(<\/mrow>)\n*\s*/'
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, '/(<mo.*?>)\n*\s*/'
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, '/(<\/mo>)\n*\s*/'
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, '/(<mi.*?>)\n*\s*/'
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, '/(<\/mi>)\n*\s*/'
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, '/(<mn.*?>)\n*\s*/'
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, '/(<\/mn>)\n*\s*/'
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, '/(<mtext.*?>)\n*\s*/'
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, '/(<\/mtext>)\n*\s*/'
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, '/(<msqrt.*?>)\n*\s*/'
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, '/(<\/msqrt>)\n*\s*/'
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, '/(<mfrac.*?>)\n*\s*/'
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, '/(<\/mfrac>)\n*\s*/'
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);
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$tags_good = array( '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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, '$1'
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);
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$out = preg_replace($tags_bad, $tags_good, $page_body);
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return $out;
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}
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/**
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* do_geshi() - Performs GeSHi transforms on XHTML blobs
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*
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* @param $blob str - The blob to transform
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* @param $open str - Opening expression to match
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* @param $close str - Closing expression to match
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* @param $lang str - Language file to use
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*
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**********************************************************/
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function do_geshi($blob, $open = '<pre>',
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$close = '</pre>', $lang = 'c')
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{
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$out = FALSE;
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$regexp = '|' . $open . '(.*?)' . $close . '|si';
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echo $regexp . "\n\n";
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while (preg_match($regexp, $blob, $matches))
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{
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$geshi = new GeSHi($matches[1], $lang);
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$geshi->set_language_path($geshi_lang);
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$blob_new = $geshi->parse_code();
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// Strip annoying final <br />
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$blob_new = preg_replace('/\n <\/pre>/', '</pre>' , $blob_new);
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// Fix annoying GeSHI-injected attributes
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$blob_new = preg_replace('/<pre.*>/i', '<pre>' , $blob_new);
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$blob = preg_replace($regexp, $blob_new, $blob, 1);
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unset($geshi);
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}
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return $out;
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}
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/**
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* prep_dd_codeblocks()
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*
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* I'm _so_ not proud of this, but don't have time to
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* write a proper regex.
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*
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* @TODO - Write that regex.
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*
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**********************************************************/
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/*
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function prep_dd_codeblocks($page_body)
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{
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$out = FALSE;
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$toggle = 0;
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$regexp = '/~{3,}/';
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while (preg_match($regexp, $page_body))
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{
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if ($toggle == 0)
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{
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$regexp = '/:\s*~{3,}\s*\n/';
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$page_body = preg_replace($regexp, ': <pre><code>', $page_body, 1);
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$toggle = 1;
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}
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else
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{
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$regexp = '/\n\s*~{3,}/';
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$page_body = preg_replace($regexp, '</code></pre>', $page_body, 1);
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$toggle = 0;
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}
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}
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// One more time
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$regexp = '/\n\s*~{3,}/';
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$page_body = preg_replace($regexp, '</code></pre>', $page_body, 1);
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$out = $page_body;
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return $out;
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}
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*/
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