From 9fd9262f1692bb6021aadb5be82d803905e14462 Mon Sep 17 00:00:00 2001
From: Emanuil Rusev <hello@erusev.com>
Date: Sun, 23 Feb 2014 18:55:34 +0200
Subject: [PATCH] implement tables

---
 Parsedown.php                         | 152 ++++++++++++++++++++++++++
 tests/data/aligned_table.html         |  21 ++++
 tests/data/aligned_table.md           |   4 +
 tests/data/simple_table.html          |  18 +++
 tests/data/simple_table.md            |   4 +
 tests/data/table_inline_markdown.html |  18 +++
 tests/data/table_inline_markdown.md   |   4 +
 tests/data/untidy_table.html          |  18 +++
 tests/data/untidy_table.md            |   4 +
 9 files changed, 243 insertions(+)
 create mode 100644 tests/data/aligned_table.html
 create mode 100644 tests/data/aligned_table.md
 create mode 100644 tests/data/simple_table.html
 create mode 100644 tests/data/simple_table.md
 create mode 100644 tests/data/table_inline_markdown.html
 create mode 100644 tests/data/table_inline_markdown.md
 create mode 100644 tests/data/untidy_table.html
 create mode 100644 tests/data/untidy_table.md

diff --git a/Parsedown.php b/Parsedown.php
index a9702af..a56ae6e 100755
--- a/Parsedown.php
+++ b/Parsedown.php
@@ -293,6 +293,59 @@ class Parsedown
 
                     break;
 
+                case 'table':
+
+                    if ($line === '')
+                    {
+                        $context = null;
+
+                        continue 2;
+                    }
+
+                    if ($line[0] === '|')
+                    {
+                        $nested_blocks = array();
+
+                        $substring = preg_replace('/^[|][ ]*/', '', $line);
+                        $substring = preg_replace('/[|]?[ ]*$/', '', $substring);
+
+                        $parts = explode('|', $substring);
+
+                        foreach ($parts as $index => $part)
+                        {
+                            $substring = trim($part);
+
+                            $nested_block = array(
+                                'name' => 'td',
+                                'content type' => 'markdown',
+                                'content' => $substring,
+                            );
+
+                            if (isset($context_data['alignments'][$index]))
+                            {
+                                $nested_block['attributes'] = array(
+                                    'align' => $context_data['alignments'][$index],
+                                );
+                            }
+
+                            $nested_blocks []= $nested_block;
+                        }
+
+                        $nested_block = array(
+                            'name' => 'tr',
+                            'content type' => 'blocks',
+                            'content' => $nested_blocks,
+                        );
+
+                        $block['content'][1]['content'] []= $nested_block;
+
+                        continue 2;
+                    }
+
+                    $context = null;
+
+                    break;
+
                 case 'paragraph':
 
                     if ($line === '')
@@ -322,6 +375,105 @@ class Parsedown
                         continue 2;
                     }
 
+                    if ($line[0] === '|' and $block['content'][0] === '|' and chop($line, ' -:|') === '')
+                    {
+                        $values = array();
+
+                        $substring = trim($line, ' |');
+
+                        $parts = explode('|', $substring);
+
+                        foreach ($parts as $part)
+                        {
+                            $substring = trim($part);
+
+                            $value = null;
+
+                            if ($substring[0] === ':')
+                            {
+                                $value = 'left';
+                            }
+
+                            if (substr($substring, -1) === ':')
+                            {
+                                $value = $value === 'left' ? 'center' : 'right';
+                            }
+
+                            $values []= $value;
+                        }
+
+                        # ~
+
+                        $nested_blocks = array();
+
+                        $substring = preg_replace('/^[|][ ]*/', '', $block['content']);
+                        $substring = preg_replace('/[|]?[ ]*$/', '', $substring);
+
+                        $parts = explode('|', $substring);
+
+                        foreach ($parts as $index => $part)
+                        {
+                            $substring = trim($part);
+
+                            $nested_block = array(
+                                'name' => 'th',
+                                'content type' => 'markdown',
+                                'content' => $substring,
+                            );
+
+                            if (isset($values[$index]))
+                            {
+                                $value = $values[$index];
+
+                                $nested_block['attributes'] = array(
+                                    'align' => $value,
+                                );
+                            }
+
+                            $nested_blocks []= $nested_block;
+                        }
+
+                        # ~
+
+                        $block = array(
+                            'name' => 'table',
+                            'content type' => 'blocks',
+                            'content' => array(),
+                        );
+
+                        $block['content'] []= array(
+                            'name' => 'thead',
+                            'content type' => 'blocks',
+                            'content' => array(),
+                        );
+
+                        $block['content'] []= array(
+                            'name' => 'tbody',
+                            'content type' => 'blocks',
+                            'content' => array(),
+                        );
+
+                        $block['content'][0]['content'] []= array(
+                            'name' => 'tr',
+                            'content type' => 'blocks',
+                            'content' => array(),
+                        );
+
+                        $block['content'][0]['content'][0]['content'] = $nested_blocks;
+
+                        # ~
+
+                        $context = 'table';
+
+                        $context_data = array(
+                            'alignments' => $values,
+                        );
+
+                        # ~
+
+                        continue 2;
+                    }
+
                     break;
 
                 default:
diff --git a/tests/data/aligned_table.html b/tests/data/aligned_table.html
new file mode 100644
index 0000000..0657bd1
--- /dev/null
+++ b/tests/data/aligned_table.html
@@ -0,0 +1,21 @@
+<table>
+<thead>
+<tr>
+<th align="left">header 1</th>
+<th align="center">header 2</th>
+<th align="right">header 2</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td align="left">cell 1.1</td>
+<td align="center">cell 1.2</td>
+<td align="right">cell 1.3</td>
+</tr>
+<tr>
+<td align="left">cell 2.1</td>
+<td align="center">cell 2.2</td>
+<td align="right">cell 2.3</td>
+</tr>
+</tbody>
+</table>
\ No newline at end of file
diff --git a/tests/data/aligned_table.md b/tests/data/aligned_table.md
new file mode 100644
index 0000000..69a45f9
--- /dev/null
+++ b/tests/data/aligned_table.md
@@ -0,0 +1,4 @@
+| header 1 | header 2 | header 2 |
+| :------- | :------: | -------: |
+| cell 1.1 | cell 1.2 | cell 1.3 |
+| cell 2.1 | cell 2.2 | cell 2.3 |
\ No newline at end of file
diff --git a/tests/data/simple_table.html b/tests/data/simple_table.html
new file mode 100644
index 0000000..88e1c2b
--- /dev/null
+++ b/tests/data/simple_table.html
@@ -0,0 +1,18 @@
+<table>
+<thead>
+<tr>
+<th>header 1</th>
+<th>header 2</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>cell 1.1</td>
+<td>cell 1.2</td>
+</tr>
+<tr>
+<td>cell 2.1</td>
+<td>cell 2.2</td>
+</tr>
+</tbody>
+</table>
\ No newline at end of file
diff --git a/tests/data/simple_table.md b/tests/data/simple_table.md
new file mode 100644
index 0000000..5245e6c
--- /dev/null
+++ b/tests/data/simple_table.md
@@ -0,0 +1,4 @@
+| header 1 | header 2 |
+| -------- | -------- |
+| cell 1.1 | cell 1.2 |
+| cell 2.1 | cell 2.2 |
\ No newline at end of file
diff --git a/tests/data/table_inline_markdown.html b/tests/data/table_inline_markdown.html
new file mode 100644
index 0000000..53d0eb8
--- /dev/null
+++ b/tests/data/table_inline_markdown.html
@@ -0,0 +1,18 @@
+<table>
+<thead>
+<tr>
+<th><em>header</em> 1</th>
+<th>header 2</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td><em>cell</em> 1.1</td>
+<td><del>cell</del> 1.2</td>
+</tr>
+<tr>
+<td><code>cell</code> 2.1</td>
+<td>cell 2.2</td>
+</tr>
+</tbody>
+</table>
\ No newline at end of file
diff --git a/tests/data/table_inline_markdown.md b/tests/data/table_inline_markdown.md
new file mode 100644
index 0000000..c2fe108
--- /dev/null
+++ b/tests/data/table_inline_markdown.md
@@ -0,0 +1,4 @@
+| _header_ 1   | header 2     |
+| ------------ | ------------ |
+| _cell_ 1.1   | ~~cell~~ 1.2 |
+| `cell` 2.1   | cell 2.2     |
\ No newline at end of file
diff --git a/tests/data/untidy_table.html b/tests/data/untidy_table.html
new file mode 100644
index 0000000..88e1c2b
--- /dev/null
+++ b/tests/data/untidy_table.html
@@ -0,0 +1,18 @@
+<table>
+<thead>
+<tr>
+<th>header 1</th>
+<th>header 2</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>cell 1.1</td>
+<td>cell 1.2</td>
+</tr>
+<tr>
+<td>cell 2.1</td>
+<td>cell 2.2</td>
+</tr>
+</tbody>
+</table>
\ No newline at end of file
diff --git a/tests/data/untidy_table.md b/tests/data/untidy_table.md
new file mode 100644
index 0000000..8524eb1
--- /dev/null
+++ b/tests/data/untidy_table.md
@@ -0,0 +1,4 @@
+| header 1 | header 2          |
+| ------------- | ----------- |
+| cell 1.1   | cell 1.2 |
+|    cell 2.1 | cell 2.2     |
\ No newline at end of file