| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * |
| 5 | * Formats parsed Text_Wiki for LaTeX rendering. |
| 6 | * |
| 7 | * $Id: Latex.php,v 1.2 2004/09/25 19:05:13 pmjones Exp $ |
| 8 | * |
| 9 | * @author Jeremy Cowgar <jeremy@cowgar.com> |
| 10 | * |
| 11 | * @package Text_Wiki |
| 12 | * |
| 13 | * @todo [http://google.com] becomes 1 with a LaTeX footnote in subscript. |
| 14 | * This should be a normal LaTeX footnote associated with the |
| 15 | * previous word? |
| 16 | * |
| 17 | * @todo parse "..." to be ``...'' |
| 18 | * |
| 19 | * @todo parse '...' to be `...' |
| 20 | * |
| 21 | * @todo move escape_latex to a static function, move escaping to the |
| 22 | * individual .php files they are associated with |
| 23 | * |
| 24 | * @todo allow the user to add conf items to do things like |
| 25 | * + A custom document header |
| 26 | * + Custom page headings |
| 27 | * + Include packages |
| 28 | * + Set Title, Author, Date |
| 29 | * + Include a title page |
| 30 | * + Not output Document Head/Foot (maybe combinding many pages?) |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | class Text_Wiki_Render_Latex extends Text_Wiki_Render { |
| 35 | function escape_latex ($txt) { |
| 36 | $txt = str_replace("\\", "\\\\", $txt); |
| 37 | $txt = str_replace('#', '\#', $txt); |
| 38 | $txt = str_replace('$', '\$', $txt); |
| 39 | $txt = str_replace('%', '\%', $txt); |
| 40 | $txt = str_replace('^', '\^', $txt); |
| 41 | $txt = str_replace('&', '\&', $txt); |
| 42 | $txt = str_replace('_', '\_', $txt); |
| 43 | $txt = str_replace('{', '\{', $txt); |
| 44 | $txt = str_replace('}', '\}', $txt); |
| 45 | |
| 46 | // Typeset things a bit prettier than normas |
| 47 | $txt = str_replace('~', '$\sim$', $txt); |
| 48 | $txt = str_replace('...', '\ldots', $txt); |
| 49 | |
| 50 | return $txt; |
| 51 | } |
| 52 | |
| 53 | function escape($tok, $ele) { |
| 54 | if (isset($tok[$ele])) { |
| 55 | $tok[$ele] = $this->escape_latex($tok[$ele]); |
| 56 | } |
| 57 | |
| 58 | return $tok; |
| 59 | } |
| 60 | |
| 61 | function pre() |
| 62 | { |
| 63 | foreach ($this->wiki->tokens as $k => $tok) { |
| 64 | if ($tok[0] == 'Code') { |
| 65 | continue; |
| 66 | } |
| 67 | |
| 68 | $tok[1] = $this->escape($tok[1], 'text'); |
| 69 | $tok[1] = $this->escape($tok[1], 'page'); |
| 70 | $tok[1] = $this->escape($tok[1], 'href'); |
| 71 | |
| 72 | $this->wiki->tokens[$k] = $tok; |
| 73 | } |
| 74 | |
| 75 | $this->wiki->source = $this->escape_latex($this->wiki->source); |
| 76 | |
| 77 | return |
| 78 | "\\documentclass{article}\n". |
| 79 | "\\usepackage{ulem}\n". |
| 80 | "\\pagestyle{headings}\n". |
| 81 | "\\begin{document}\n"; |
| 82 | } |
| 83 | |
| 84 | function post() |
| 85 | { |
| 86 | return "\\end{document}\n"; |
| 87 | } |
| 88 | |
| 89 | } |
| 90 | ?> |