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parse link references as blocks to improve performance

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This commit is contained in:
Emanuil Rusev 2013-11-05 00:57:16 +02:00
parent 6d113f47fb
commit b12973415f
3 changed files with 18 additions and 32 deletions
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28
Parsedown.php
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@ -75,18 +75,6 @@ class Parsedown
}
}
# Extracts link references.
if (preg_match_all('/^[ ]{0,3}\[(.+)\][ ]?:[ ]*\n?[ ]*(.+)$/m', $text, $matches, PREG_SET_ORDER))
{
foreach ($matches as $matches)
{
$this->reference_map[strtolower($matches[1])] = $matches[2];
$text = str_replace($matches[0], '', $text);
}
}
# ~
$text = preg_replace('/\n\s*\n/', "\n\n", $text);
@ -217,7 +205,7 @@ class Parsedown
# Quick Paragraph
if ($line[0] >= 'A' and $line[0] !== '_')
if ($line[0] >= 'A' and $line[0] !== '_' and $line[0] !== '[')
{
goto paragraph; # trust me
}
@ -282,10 +270,22 @@ class Parsedown
continue;
}
# ~
# ~
$pure_line = ltrim($line);
# Link Reference
if ($pure_line[0] === '[' and preg_match('/^\[(.+?)\]:[ ]*([^ ]+)/', $pure_line, $matches))
{
$label = $matches[1];
$url = trim($matches[2], '<>');
$this->reference_map[$label] = $url;
continue;
}
# Blockquote
if ($pure_line[0] === '>' and preg_match('/^>[ ]?(.*)/', $pure_line, $matches))

3
tests/data/reference_link.html
View File

@ -1,14 +1,11 @@
<p>Here's a <a href="http://parsedown.org">reference link</a>.</p>
<p>Here's <a href="http://parsedown.org">one</a> with an alternative syntax.</p>
<p>Here's <a href="http://parsedown.org">one</a> on the next line.</p>
<p>Here's <a href="http://parsedown.org">one</a> on 2 lines.</p>
<p>Here's <a href="http://parsedown.org/tests/">one</a> with a different URL.</p>
<p>Here's <a href="http://parsedown.org">one</a> with a semantic name.</p>
<p>Here's <a href="http://parsedown.org">one</a> with definition name on the next line.</p>
<p>Here's [one][404] with no definition.</p>
<p>Here's an image: <img alt="Markdown Logo" src="/md.png"></p>
<p>Here's an <a href="http://google.com">implicit one</a>.</p>
<p>Here's an <a href="http://google.com">implicit one</a>.</p>
<p>Here's an <a href="http://google.com">implicit one</a> with an empty link definition.</p>
<p>Here's a <a href="http://parsedown.org">multiline
one</a> defined on 2 lines.</p>

19
tests/data/reference_link.md
View File

@ -2,21 +2,12 @@ Here's a [reference link][1].
[1]: http://parsedown.org
Here's [one] [2] with an alternative syntax.
Here's [one][2] on the next line.
[2]: http://parsedown.org
[2] :http://parsedown.org
Here's [one][3] with a different URL.
Here's [one][3] on the next line.
[3]: http://parsedown.org
Here's [one][4] on 2 lines.
[4]:
http://parsedown.org
Here's [one][5] with a different URL.
[5]: http://parsedown.org/tests/
[3]: http://parsedown.org/tests/
Here's [one][website] with a semantic name.
@ -33,8 +24,6 @@ Here's an image: ![Markdown Logo][image]
Here's an [implicit one].
Here's an [implicit one].
[implicit one]: http://google.com
Here's an [implicit one][] with an empty link definition.