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Use YARD's new capabilities to render the FAQ as Markdown.
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--readme README.md | ||
--markup markdown | ||
--markup-provider maruku | ||
--protected | ||
--no-highlight |
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# Frequently Asked Questions | ||
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## Haml | ||
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### How do I put a punctuation mark after an element, like "`I like <strong>cake</strong>!`"? | ||
{#q-punctuation} | ||
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Expressing the structure of a document | ||
and expressing inline formatting are two very different problems. | ||
Haml is mostly designed for structure, | ||
so the best way to deal with formatting is to leave it to other languages | ||
that are designed for it. | ||
You could use Textile: | ||
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%p | ||
:textile | ||
I like *cake*! | ||
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or Markdown: | ||
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%p | ||
:markdown | ||
I like **cake**! | ||
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or plain old XHTML: | ||
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%p I like <strong>cake</strong>! | ||
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If you're inserting something that's generated by a helper, like a link, | ||
then it's even easier: | ||
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%p== I like #{link_to 'chocolate', 'http://franschocolates.com'}! | ||
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### How do I stop Haml from indenting the contents of my `pre` and `textarea` tags? | ||
{#q-preserve} | ||
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Because Haml automatically indents the HTML source code, | ||
the contents of whitespace-sensitive tags like `pre` and `textarea` | ||
can get screwed up. | ||
The solution is to replace the newlines inside these tags | ||
with HTML newline entities (`
`), | ||
which Haml does using the {Haml::Helpers#preserve} and {Haml::Helpers#find_and_preserve} helpers. | ||
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Normally, Haml will do this for you automatically | ||
when you're using a tag that needs it | ||
(this can be customized using the [`:preserve`](Haml.html#preserve-option) option. | ||
For example, | ||
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%p | ||
%textarea= "Foo\nBar" | ||
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will be compiled to | ||
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<p> | ||
<textarea>Foo
Bar</textarea> | ||
</p> | ||
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However, if a helper is generating the tag, | ||
Haml can't detect that and so you'll have to call {Haml::Helpers#find_and_preserve} yourself. | ||
You can also use `~`, which is the same as `=` | ||
except that it automatically runs `find_and_preserve` on its input. | ||
For example: | ||
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%p= find_and_preserve "<textarea>Foo\nBar</textarea>" | ||
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is the same as | ||
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%p~ "<textarea>Foo\nBar</textarea>" | ||
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and renders | ||
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<p><textarea>Foo
Bar</textarea></p> | ||
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### How do I make my long lines of Ruby code look nicer in my Haml document? | ||
{#q-multiline} | ||
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Put them in a helper or your model. | ||
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Haml purposefully makes it annoying to put lots of Ruby code into your templates, | ||
because lots of code doesn't belong in the view. | ||
If you take that huge `link_to_remote` call | ||
and move it to a `update_sidebar_link` helper, | ||
it'll make your view both easier to read and more semantic. | ||
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If you absolutely must put lots of code in your template, | ||
Haml offers a somewhat awkward multiline-continuation tool. | ||
Put a `|` (pipe character) at the end of each line you want to be merged into one | ||
(including the last line!). | ||
For example: | ||
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%p= @this.is(way.too.much). | | ||
code("and I should"). | | ||
really_move.it.into( | | ||
:a => @helper) | | ||
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### I have Haml installed. Why is Rails (only looking for `.html.erb` files | rendering Haml files as plain text | rendering Haml files as blank pages)? | ||
{#q-blank-page} | ||
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There are several reasons these things might be happening. | ||
First of all, make sure `vendor/plugins/haml` really exists | ||
and has an `init.rb` file in there. | ||
Then try restarting Mongrel or WEBrick or whatever you might be using. | ||
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Finally, if none of these work, | ||
chances are you've got some localization plugin like Globalize installed. | ||
Such plugins often don't play nicely with Haml. | ||
Luckily, there's usually an easy fix. | ||
For Globalize, just edit `globalize/lib/globalize/rails/action_view.rb` | ||
and change | ||
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@@re_extension = /\.(rjs|rhtml|rxml)$/ | ||
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to | ||
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@@re_extension = /\.(rjs|rhtml|rxml|erb|builder|haml)$/ | ||
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For other plugins, a little searching will probably turn up a way to fix them as well. | ||
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## Sass | ||
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### Can I use a variable from my controller in my Sass file? | ||
{#q-ruby-code} | ||
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No. Sass files aren't views. | ||
They're compiled once into static CSS files, | ||
then left along until they're changed and need to be compiled again. | ||
Not only don't you want to be running a full request cycle | ||
every time someone requests a stylesheet, | ||
but it's not a great idea to put much logic in there anyway | ||
due to how browsers handle them. | ||
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If you really need some sort of dynamic CSS, | ||
the best thing to do is put only the snippet you need to dynamically set | ||
in the `head` of your HTML document. | ||
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## You still haven't answered my question! | ||
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Sorry! Try looking at the Haml or Sass references, | ||
in the doucmentation for the haml and Sass modules, respectively. | ||
If you can't find an answer there, | ||
feel free to ask in `#haml` on irc.freenode.net | ||
or send an email to the [mailing list](http://groups.google.com/group/haml?hl=en). |
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