[Plugin: Crayon Syntax Highlighter] HOW-TO: Manually extract unformatting code?

harikaram
(@harikaram)

11 years, 10 months ago
Hi,

I’m trying to render a list view in which I need at most the first couple lines of a code block, probably unformatted. Is there a way with the Crayon API I can manually extract and process the content?

get_the_content() returns a [crayon-124] id tag which I gather is being inserted via a hook somewhere as the database has the actual
<pre>....</pre>
content. It’s the later I need, or even better, a way of limiting the output to a couple lines and some ellipses – something like this:
```
$unformatted = get_the_unprocessed_code_content()
$tmp = split('\n', $unformatted);
$unformatted_shortened = implode('\n', array( $tmp[0], @$tmp[1] )) + '...';
$formatted_shortened = CrayonWP::process($unformatted_shortened);
```
Barring that, I’d be happy just to have the raw content of the post…

Many thanks. This is stellar plugin by the way. I’ve been through a few of them too!

Gratefully,
Hari Karam Singh
http://club15cc.com

http://wordpress.org/extend/plugins/crayon-syntax-highlighter/

Viewing 8 replies - 1 through 8 (of 8 total)

Plugin Author akarmenia
(@akarmenia)

11 years, 10 months ago

Hi, replace the existing file with this:

https://dl.dropbox.com/u/33811812/Crayon/minor/crayon-syntax-highlighter-1.9.8-minor-1.zip

Then use this: var_dump(CrayonWP::post_captures());

It returns an array of post IDs, each containing another array with the key of Crayon UID string, which contains all the info captured.
Thread Starter harikaram
(@harikaram)

11 years, 10 months ago
Cool thank you. Just for clarity, I tried this in my template, mimicking CrayonWP->the_posts():
```
// global $post;
$captures = CrayonWP::capture_crayons(get_the_ID(), get_the_content());
$content = array_pop($captures['capture']);
//print_r($content);
$crayon = CrayonWP::instance(array(), get_the_ID());
$crayon->code($content);
echo CrayonFormatter::plain_code($crayon->code());
```
…but it still just gives the shortcode. When/where does Crayon convert the DB content to a shortcode?
Plugin Author akarmenia
(@akarmenia)

11 years, 10 months ago

You shouldn’t need to use the internals – post_captures will return the internal $post_queue array. This contains the original code you’re looking for.
Thread Starter harikaram
(@harikaram)

11 years, 10 months ago
Ok, this is how I’ve accomplished it in my template file:
```
// Grab the raw code and limit to N lines
$NUM_LINES = 3;
$tmp = CrayonWP::post_captures();
$c = array_pop($tmp[get_the_ID()]);
$lines = preg_split('/[\r\n]+/', $c['code']);
$content = ''; $i = 0;

// Combine the first $NUM_LINES lines
while ($i < count($lines) && $i < $NUM_LINES) {
    if ($i > 0) $content .= "\n";       // combine with newline
    $content .= $lines[$i];
    $i++;
}
if (count($lines) > $NUM_LINES) $content .= "\n...";        // add ellipse if not complete

// Format the code and render
$crayon = CrayonWP::instance($c['atts'], get_the_ID());
$crayon->code($content);
echo $crayon->output(false);
```
Thread Starter harikaram
(@harikaram)

11 years, 10 months ago

Feature request:
A nice public API for outputting code on manually.

Just want to reiterate, this is a great plugin 🙂 Thanks.

Plugin Author akarmenia
(@akarmenia)

11 years, 10 months ago

Thanks, definitely something to consider for the next release.

Thread Starter harikaram
(@harikaram)

11 years, 10 months ago

I’m getting this on my single pages now:

Fatal error: Undefined class constant ‘EXCERPT_STRIP’ in D:\wwwserver\club15cc.com\wp-content\plugins\crayon-syntax-highlighter\crayon_wp.class.php

Do I need the update of crayon_settings.class.php too?

Plugin Author akarmenia
(@akarmenia)

11 years, 10 months ago

No, but you must have “require_once (‘crayon_settings_wp.class.php’);”

Viewing 8 replies - 1 through 8 (of 8 total)

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