Using harsh with generated code - ruby-on-rails

I have code in #snippet.code, and I want to highlight it with harsh:
:harsh
#!harsh theme = lazy
= #snippet.code
However, this just highlights #snippet.code, so the output is:
<pre class="lazy"><span class="Keyword">=</span> <span class="Variable"><span class="Variable">#</span>snippet</span>.code
</pre>
How can I use Harsh with generated code? Thanks

You need to print out the contents of #snippet.code
It would help to know what templating engine you are using. Try:
:harsh
#!harsh theme = lazy
<%= #snippet.code %>
This should work if erb get to the code before harsh.

Related

Slim templates and TailwindCSS use ' : ' in class declaration

TailwindCSS is looking like a great frontend tool but I'm wondering how to use it with the Rails Slim template language?
For example:
<div class="bg-red-500 sm:bg-green-500 md:bg-blue-500 lg:bg-pink-500 xl:bg-teal-500"></div>
If I run it through HTML2SLIM I get this recommendation:
.bg-red-500.sm:bg-green-500.md:bg-blue-500.lg:bg-pink-500.xl:bg-teal-500
Which produces the following HTML:
<div class="bg-red-500 sm">
<bg-green-500 class="md">
<bg-blue-500 class="lg">
<bg-pink-500 class="xl">
<bg-teal-500></bg-teal-500>
</bg-pink-500>
</bg-blue-500>
</bg-green-500>
</div>
It seems that the colon ':' is interperted as multiple html elemments. Im wondering if there's a way around this? I'd love to use Slim with TailwindCSS.
So far I've made some progress using Rails' content_tag:
= content_tag :span, 'Accounts', class: 'invisible md:visible lg:visible'
But I can only go so far with this.
Another option is to configure Tailwind to use another separator as documented here: https://tailwindcss.com/docs/configuration/#separator
// tailwind.config.js
module.exports = {
separator: "_",
}
Then you could do .sm_bg-green-500 and so on.
There are also class names like .w-1/2 in Tailwind, that are not affected by this setting. You could add custom class names to work around that, e.g.
// tailwind.config.js
module.exports = {
…
theme: {
extend: {
width: {
"1-of-2": "50%"
}
}
}
}
and then use .w-1-of-2.
It's just not possible to have these colons in the class shorthand notation. You can do the following though
div class="bg-red-500.sm::bg-green-500.md:bg-blue-500.lg:bg-pink-500.xl:bg-teal-500"
which results in the desired HTML:
<div class="bg-red-500 sm:bg-green-500 md:bg-blue-500 lg:bg-pink-500 xl:bg-teal-500"></div>

Spaces being turned into in angular

I'm using ng_repeat to display text from an object. On the rails backend I call strip_tags(text) to remove html. When looking at the output it looks fine. Even when looking at the object in 'view source' it looks fine.
It only looks weird when you look at the text that is actually rendered from the ng_repeat - after a certain point (200 words in the example below) every space is replaced by an
This is causing the text to overflow the div. Any suggestions for dealing with this?
Edit: Some of the code (simplified)
JS:
$scope.init = function(id){
$scope.episodes = gon.episodes
Haml:
.episode-edit{ng_repeat:"episode in episodes"}
%p {{episode.sanitized_summary}}
You should try ng-bind-html. Your snippet would look like
<p ng-bind-html="YourObject"></p>
You can use it in ng-repeat as well.
If you want to secure the data first then include $sce service in your controller. Your snippet would be like
var ExampleCtrl = function($scope, $sce) {
$scope.YourObject = $sce.trustAsHtml($scope.YourObject); // that's it
}
Sorry, turns out it had nothing to do with angular, more to do with Ruby.
Ruby's whitespace regex doesn't capture unicode non-breaking space.
Instead of str.gsub(/\s/m, ' ') you have to use str.gsub(/[[:space:]]/m, ' ')

How to prevent the <p> tag from wrapping around my input with tinymce in Rails?

By default, the tinymce input gets passed to the DOM as a paragraph tag:
I would like to remove that element wrapper so that tinymce passes exactly what I entered in the text editor.
How do I do that ? Please if you provide a code, can you also let me know where that code gets added ?
Regards !!!
Actually I solved my problem. All I had to do was change the styling for paragraph tag :
p {margin: 0; padding: 0;}
You need to specify the forced_root_block to false. However the documentation states that not having your root block as a <p> tag can cripple the editors behaviour. Newlines will be spaced with <br> tags instead.
tinyMCE.init({
selector: 'textarea',
forced_root_block: false
});
See the documentation here
I strip out those pesky things with gsub and regex like this:
<%= #event.desc_long.gsub(/^\<p\>/,"").gsub(/\<\/p\>$/,"") %>
First .gsub removes the <p> at the start of the TinyMCE string, and the second one removes the </p> at the end. Working great for me. This would work for any language that uses regex (gsub is for rails). JavaScript example:
var str = "{TinyMCE HTML string}";
str = str.replace(/^\<p\>/,"").replace(/\<\/p\>$/,"");
Hope this helps!
EDIT:
Re: where to put it. You leave what TinyMCE puts in your database alone. Add the above only when you display it (in the view, e-mail whatever).
In case you just want to get rid of margins:
tinymce.init({
...
setup: function(ed) {
ed.on('init', function() {
var doc = this.getDoc().getElementById("tinymce");
doc.style.margin = 0;
});
},
});

Get children of an XHPChild

I am trying to move my website to Hack and XHP, of course. Below is a structure of what code structure I want to achieve:
<ui:backstageHeader>
<ui:backstageHeader-navItem href="/">stories</ui:backstageHeader-navItem>
<ui:backstageHeader-navItem href="/story/send">send a story</ui:backstageHeader-navItem>
<ui:backstageHeader-navItem href="/aboutus">support</ui:backstageHeader-navItem>
</ui:backstageHeader>
(Note: :ui:backstageHeader-navItem basically renders to <a href={$this->:href}>{$this->getCHildren}</a> so there is not need to attach its class here.)
Below is the code for :ui:backstageHeader:
final class :ui:backstageHeader extends :ui:base {
attribute :div;
children (:ui:backstageHeader-navItem)*;
protected function compose() {
$dom =
<section class="backstage-header">
<div class="container">
<div class="cell-logo">
<a href="/">
<span class="no23-logo-white"></span>
</a>
</div>
<div class="cell-navigation">
</div>
<div class="cell-account">
<div class="cell-login">
<div id="siteNav-login">Autentificare</div>
</div>
</div>
</div>
</section>;
$mainContainer = $dom->getChildren("div")[0];
$cellNavigation = $mainContainer->getChildren("div")[1];
$navItems = <ul class="main-navigation"></ul>;
foreach($this->getChildren() as $child) {
$navItems->appendChild(<li>{$child}</li>);
}
$dom->appendChild($navItems);
return $dom;
}
}
I used the Terminal to debug my code using hhvm -m d <file.php>, and everything was alright there; however, when I get to my browser, I get 500 error header. This is what the log says:
Catchable fatal error: Hack type error: Could not find method getChildren in an object of type XHPChild at /var/www/res/ui/backstage-header.php line 25
The error comes from
$cellNavigation = $mainContainer->getChildren("div")[1];
But, somehow, I need to append ul.main-navigation to div.cell-navigation from my section.backstage-header.
How can I do it?
Don't structure your code this way. Built it up from the inside out, so that you don't have to do a ton of unreadable getChildren calls looking for specific children. Those calls are super hard to read, and super inflexible when you change the structure of your XHP. You wouldn't do something like node.firstChild.lastChild.lastChild.firstChild in the JS DOM, would you? No, there's a better way in JS, to find things by class or ID; in XHP, you can just build it up the right way in the first place!
I'd give you an example of this, but it doesn't look like you actually use $mainContainer or $cellNavigation, so you can just remove those two problematic definitions.
As an aside, you really shouldn't be getting your type errors as catchable fatals from HHVM; this is a last resort sort of check. Try running the hh_client checker directly, maybe even showing its result in your IDE; it will give you a much faster iteration cycle, and much more information than HHVM provides.
From my experience, appendChild is very prone to human error. It's easier to do something like:
$items = (new Vector($this->getChildren()))->map($child ==> <li>{$child}</li>);
return <div id="container">{$items}</div>;
If you want to wrap the children in <li />.
Not sure if that will work but it will be close.
Pro tip: You can assign variables from within an XHP tree.
$root =
<div>
{$child = <span>
Text children
</span>}
</div>;
Now $child is already set to the <span> element.

BeautifulSoup: parse only part of the page

I want to parse a part of html page, say
my_string = """
<p>Some text. Some text. Some text. Some text. Some text. Some text.
Link1
Link2
</p>
<img src="image.png" />
<p>One more paragraph</p>
"""
I pass this string to BeautifulSoup:
soup = BeautifulSoup(my_string)
# add rel="nofollow" to <a> tags
# return comment to the template
But during parsing BeautifulSoup adds <html>,<head> and <body> tags (if using lxml or html5lib parsers), and I don't need those in my code. The only way I've found up to now to avoid this is to use html.parser.
I wonder if there is a way to get rid of redundant tags using lxml - the quickest parser.
UPDATE
Originally my question was asked incorrectly. Now I removed <div> wrapper from my example, since common user does not use this tag. For this reason we cannot use .extract() method to get rid of <html>, <head> and <body> tags.
Use
soup.body.renderContents()
lxml will always add those tags, but you can use Tag.extract() to remove your <div> tag from inside them:
comment = soup.body.div.extract()
I could solve the problem using .contents property:
try:
children = soup.body.contents
string = ''
for child in children:
string += str(item)
return string
except AttributeError:
return str(soup)
I think that ''.join(soup.body.contents) would be more neat list to string converting, but this does not work and I get
TypeError: sequence item 0: expected string, Tag found

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