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<?php
/**
*
* Formats parsed Text_Wiki for LaTeX rendering.
*
* $Id: Latex.php 169211 2004-09-25 19:05:14Z pmjones $
*
* @author Jeremy Cowgar <jeremy@cowgar.com>
*
* @package Text_Wiki
*
* @todo [http://google.com] becomes 1 with a LaTeX footnote in subscript.
* This should be a normal LaTeX footnote associated with the
* previous word?
*
* @todo parse "..." to be ``...''
*
* @todo parse '...' to be `...'
*
* @todo move escape_latex to a static function, move escaping to the
* individual .php files they are associated with
*
* @todo allow the user to add conf items to do things like
* + A custom document header
* + Custom page headings
* + Include packages
* + Set Title, Author, Date
* + Include a title page
* + Not output Document Head/Foot (maybe combinding many pages?)
*
*/
class Text_Wiki_Render_Latex extends Text_Wiki_Render {
function escape_latex ($txt) {
$txt = str_replace("\\", "\\\\", $txt);
$txt = str_replace('#', '\#', $txt);
$txt = str_replace('$', '\$', $txt);
$txt = str_replace('%', '\%', $txt);
$txt = str_replace('^', '\^', $txt);
$txt = str_replace('&', '\&', $txt);
$txt = str_replace('_', '\_', $txt);
$txt = str_replace('{', '\{', $txt);
$txt = str_replace('}', '\}', $txt);
// Typeset things a bit prettier than normas
$txt = str_replace('~', '$\sim$', $txt);
$txt = str_replace('...', '\ldots', $txt);
return $txt;
}
function escape($tok, $ele) {
if (isset($tok[$ele])) {
$tok[$ele] = $this->escape_latex($tok[$ele]);
}
return $tok;
}
function pre()
{
foreach ($this->wiki->tokens as $k => $tok) {
if ($tok[0] == 'Code') {
continue;
}
$tok[1] = $this->escape($tok[1], 'text');
$tok[1] = $this->escape($tok[1], 'page');
$tok[1] = $this->escape($tok[1], 'href');
$this->wiki->tokens[$k] = $tok;
}
$this->wiki->source = $this->escape_latex($this->wiki->source);
return
"\\documentclass{article}\n".
"\\usepackage{ulem}\n".
"\\pagestyle{headings}\n".
"\\begin{document}\n";
}
function post()
{
return "\\end{document}\n";
}
}
?>
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