<?php/*** * Formats parsed Text_Wiki for LaTeX rendering.* * $Id: Latex.php,v 1.2 2004/09/25 19:05:13 pmjones Exp $* * @author Jeremy Cowgar <jeremy@cowgar.com>* * @package Text_Wiki* * @todo [http://google.com] becomes 1 with a LaTeX footnote in subscript.*       This should be a normal LaTeX footnote associated with the*       previous word?* * @todo parse "..." to be ``...''* * @todo parse '...' to be `...'* * @todo move escape_latex to a static function, move escaping to the*       individual .php files they are associated with* * @todo allow the user to add conf items to do things like*       + A custom document header*       + Custom page headings*       + Include packages*       + Set Title, Author, Date*       + Include a title page*       + Not output Document Head/Foot (maybe combinding many pages?)* */class Text_Wiki_Render_Latex extends Text_Wiki_Render {    function escape_latex ($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";    }    }?>