aleph1.co.uk Git - yaffs-website/blob - vendor/cebe/markdown/block/TableTrait.php

   1 <?php
   2 /**
   3  * @copyright Copyright (c) 2014 Carsten Brandt
   4  * @license https://github.com/cebe/markdown/blob/master/LICENSE
   5  * @link https://github.com/cebe/markdown#readme
   6  */
   7
   8 namespace cebe\markdown\block;
   9
  10 /**
  11  * Adds the table blocks
  12  */
  13 trait TableTrait
  14 {
  15         private $_tableCellTag = 'td';
  16         private $_tableCellCount = 0;
  17         private $_tableCellAlign = [];
  18
  19         /**
  20          * identify a line as the beginning of a table block.
  21          */
  22         protected function identifyTable($line, $lines, $current)
  23         {
  24                 return strpos($line, '|') !== false && preg_match('~|.*|~', $line) && isset($lines[$current + 1]) && preg_match('~^[\s\|\:-]+$~', $lines[$current + 1]);
  25         }
  26
  27         /**
  28          * Consume lines for a table
  29          */
  30         protected function consumeTable($lines, $current)
  31         {
  32                 // consume until newline
  33
  34                 $block = [
  35                         'table',
  36                         'cols' => [],
  37                         'rows' => [],
  38                 ];
  39                 $beginsWithPipe = $lines[$current][0] === '|';
  40                 for ($i = $current, $count = count($lines); $i < $count; $i++) {
  41                         $line = $lines[$i];
  42
  43                         if ($i == $current+1) { // skip second line
  44                                 $cols = explode('|', trim($line, ' |'));
  45                                 foreach($cols as $col) {
  46                                         $col = trim($col);
  47                                         if (empty($col)) {
  48                                                 $block['cols'][] = '';
  49                                                 continue;
  50                                         }
  51                                         $l = ($col[0] === ':');
  52                                         $r = (substr($col, -1, 1) === ':');
  53                                         if ($l && $r) {
  54                                                 $block['cols'][] = 'center';
  55                                         } elseif ($l) {
  56                                                 $block['cols'][] = 'left';
  57                                         } elseif ($r) {
  58                                                 $block['cols'][] = 'right';
  59                                         } else {
  60                                                 $block['cols'][] = '';
  61                                         }
  62                                 }
  63
  64                                 continue;
  65                         }
  66                         if (trim($line) === '' || $beginsWithPipe && $line[0] !== '|') {
  67                                 break;
  68                         }
  69                         if (substr($line, -2, 2) !== '\\|' || substr($line, -3, 3) === '\\\\|') {
  70                                 $block['rows'][] = trim($line, '| ');
  71                         } else {
  72                                 $block['rows'][] = ltrim($line, '| ');
  73                         }
  74                 }
  75
  76                 return [$block, --$i];
  77         }
  78
  79         /**
  80          * render a table block
  81          */
  82         protected function renderTable($block)
  83         {
  84                 $content = '';
  85                 $this->_tableCellAlign = $block['cols'];
  86                 $content .= "<thead>\n";
  87                 $first = true;
  88                 foreach($block['rows'] as $row) {
  89                         $this->_tableCellTag = $first ? 'th' : 'td';
  90                         $align = empty($this->_tableCellAlign[$this->_tableCellCount]) ? '' : ' align="' . $this->_tableCellAlign[$this->_tableCellCount++] . '"';
  91                         $tds = "<$this->_tableCellTag$align>" . $this->renderAbsy($this->parseInline($row)) . "</$this->_tableCellTag>"; // TODO move this to the consume step
  92                         $content .= "<tr>$tds</tr>\n";
  93                         if ($first) {
  94                                 $content .= "</thead>\n<tbody>\n";
  95                         }
  96                         $first = false;
  97                         $this->_tableCellCount = 0;
  98                 }
  99                 return "<table>\n$content</tbody>\n</table>\n";
 100         }
 101
 102         /**
 103          * @marker |
 104          */
 105         protected function parseTd($markdown)
 106         {
 107                 if (isset($this->context[1]) && $this->context[1] === 'table') {
 108                         $align = empty($this->_tableCellAlign[$this->_tableCellCount]) ? '' : ' align="' . $this->_tableCellAlign[$this->_tableCellCount++] . '"';
 109                         return [['text', "</$this->_tableCellTag><$this->_tableCellTag$align>"], isset($markdown[1]) && $markdown[1] === ' ' ? 2 : 1]; // TODO make a absy node
 110                 }
 111                 return [['text', $markdown[0]], 1];
 112         }
 113
 114         abstract protected function parseInline($text);
 115         abstract protected function renderAbsy($absy);
 116 }