ikiwiki/doc/todo/color_plugin.mdwn

Recently I've wanted to colour some piece of text on my Ikiwiki page.
It seems that Markdown can do it only using HTML tags, so I used
`<span class="color">foo bar baz</span>`.

However, in my opinion mixing Markdown syntax and HTML tags is rather ugly,
so maybe we should create a new color plugin to add more color to Ikiwiki ;)
I know that another Wikis have similar plugin, for example
[WikiDot](http://www.wikidot.com/).

I've noticed that htmlscrubber plugin strips `style` attribute, because of
security, so probably we need to use `class` attribute of HTML. But then
we have to customize our `local.css` file to add all color we want to use.
It's not as easy in usage like color name or definition as plugin argument,
but I don't have a better idea right now.

What do you think about it? --[[Paweł|ptecza]]

> Making a plugin preserve style attributes can be done, it just has to add
> them after the sanitize step, which strips them. The general method is
> adding placeholders first, and replacing them with the real html later.
> 
> The hard thing to me seems to be finding a syntax that is better than a
> `<span>`. A preprocessor directive is not really any less ugly than html
> tags, though at least it could play nicely with nested markdown: --[[Joey]]
> 
>	\[[!color red,green """
>	Xmas-colored markdown here
>	"""]]

>> I'm glad you like that idea. In my opinion your syntax looks good.
>> Out of curiosity, why did you used 2 colors in your example? What is HTML
>> result for it? ;)

>>> I was thinking one would be foreground, the other background. Don't
>>> know if setting the background makes sense or not.

>> I can try to create that plugin, if you are too busy now. I'm not Perl
>> hacker, but I wrote a lot of Perl scripts in my life and color plugin
>> doesn't seem to be very hard task. --[[Paweł|ptecza]]

>> Yes, it's a good intro plugin, have at it! --[[Joey]]