Merge pull request #131 from silverstripe/yaml-metadata-block

Support parsing and removing a YAML metadata block in markdown.
This commit is contained in:
Mateusz U 2017-03-22 10:00:19 +13:00 committed by GitHub
commit f61751b19e
7 changed files with 152 additions and 123 deletions

View File

@ -522,36 +522,4 @@ class DocumentationParser
return $md;
}
/**
* Strips out the metadata for a page
*
* @param DocumentationPage
*/
public static function retrieve_meta_data(DocumentationPage $page)
{
$md = $page->getMarkdown();
if ($md) {
// get the text up to the first empty line
$extPattern = "/^(.+)\n\r*\n/Uis";
$matches = preg_match($extPattern, $md, $block);
if ($matches && $block[1]) {
// find the key/value pairs
$lines = preg_split('/\v+/', $block[1]);
$key = '';
$value = '';
foreach ($lines as $line) {
if (strpos($line, ':') !== false) {
list($key, $value) = explode(':', $line, 2);
$key = trim($key);
$value = trim($value);
} else {
$value .= ' ' . trim($line);
}
$page->setMetaData($key, $value);
}
}
}
}
}

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@ -172,13 +172,6 @@ class DocumentationPage extends ViewableData
return false;
}
public function setMetaData($key, $value)
{
$key = strtolower($key);
$this->$key = $value;
}
/**
* @return string
*/
@ -280,7 +273,37 @@ class DocumentationPage extends ViewableData
*/
public function populateMetaDataFromText(&$md, $removeMetaData = false)
{
if ($md) {
if (!$md) {
return;
}
// See if there is YAML metadata block at the top of the document. e.g.
// ---
// property: value
// another: value
// ---
//
// If we found one, then we'll use a YAML parser to extract the
// data out and then remove the whole block from the markdown string.
$parser = new \Mni\FrontYAML\Parser();
$document = $parser->parse($md, false);
$yaml = $document->getYAML();
if ($yaml) {
foreach ($yaml as $key => $value) {
if (!property_exists(get_class($this), $key)) {
continue;
}
$this->$key = $value;
}
if ($removeMetaData) {
$md = $document->getContent();
}
return;
}
// this is the alternative way of parsing the properties out that don't contain
// a YAML block declared with ---
//
// get the text up to the first empty line
$extPattern = "/^(.+)\n\r*\n/Uis";
$matches = preg_match($extPattern, $md, $block);
@ -313,7 +336,6 @@ class DocumentationPage extends ViewableData
}
}
}
}
public function getVersion()
{
@ -328,3 +350,4 @@ class DocumentationPage extends ViewableData
return sprintf(get_class($this) .': %s)', $this->getPath());
}
}

View File

@ -16,7 +16,8 @@
"require": {
"silverstripe/framework": "~3.1",
"erusev/parsedown-extra": "0.2.2",
"erusev/parsedown": "~1.1.0"
"erusev/parsedown": "~1.1.0",
"mnapoli/front-yaml": "^1.5"
},
"suggest": {
"silverstripe/staticpublisher": "Allows publishing documentation as HTML"

View File

@ -128,7 +128,6 @@ with multiple
lines
and tab indent
and escaped < brackets
```
Normal text after code block
HTML;
@ -395,12 +394,39 @@ HTML;
public function testRetrieveMetaData()
{
DocumentationParser::retrieve_meta_data($this->metaDataPage);
$this->metaDataPage->getMarkdown(true);
$this->assertEquals('Foo Bar\'s Test page.', $this->metaDataPage->getTitle());
$this->assertEquals('A long intro that splits over many lines', $this->metaDataPage->getIntroduction());
$this->assertEquals('Foo Bar Test page description', $this->metaDataPage->getSummary());
$this->assertEquals('Dr. Foo Bar.', $this->metaDataPage->author);
$this->assertEquals("Foo Bar's Test page.", $this->metaDataPage->getTitle());
$this->assertEquals("Foo Bar's Test page.", $this->metaDataPage->getTitle());
$this->assertEquals("A long intro that splits over many lines", $this->metaDataPage->getIntroduction());
$parsed = DocumentationParser::parse($this->metaDataPage);
$expected = <<<HTML
<h1 id="content">Content</h1>
HTML;
$this->assertEquals($parsed, $expected, 'Metadata block removed, parsed correctly');
}
public function testRetrieveMetaDataYamlBlock()
{
$page = new DocumentationPage(
$this->entityAlt,
'MetaDataYamlBlockTest.md',
DOCSVIEWER_PATH . '/tests/docs-parser/en/MetaDataYamlBlockTest.md'
);
$page->getMarkdown(true);
$this->assertEquals('Foo Bar\'s Test page.', $page->getTitle());
$this->assertEquals('This is the page\'s description', $page->getSummary());
$parsed = DocumentationParser::parse($page);
$expected = <<<HTML
<h2 id="content-2">Content</h2>
<p>Content goes here.</p>
<hr />
<h2>randomblock: ignored</h2>
HTML;
$this->assertEquals($parsed, $expected, 'YAML metadata block removed, parsed correctly');
}
public function testRewritingRelativeLinksToFiles()

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@ -1,7 +1,6 @@
Title: Foo Bar's Test page.
Author: Dr. Foo Bar.
Another: Test.
Introduction: A long intro that
title: Foo Bar's Test page.
summary: Foo Bar Test page description
introduction: A long intro that
splits over
many lines

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@ -0,0 +1,13 @@
---
title: "Foo Bar's Test page."
summary: "This is the page's description"
---
## Content
Content goes here.
---
randomblock: ignored
---

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@ -30,7 +30,6 @@ test
and tab indent
and escaped < brackets
Normal text after code block
code block