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Speaker: Kevin Sawicki
Customize editor colorization.
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Hi. I'm Kevin Sawicki with Aptana, and today I'm going to go over the new
colorization system. This video will focus on the colorization of CSS, so I
have a sample CSS file created from a YUI project that I'm just going to open.
And in this, you'll see our current colorization for the CSS language, and to
be able to change this, I'm going to go to Window > Preferences..., and
under the Aptana Editors section, you'll see for each editor we have,
there's a colors preference under there that'll let you change how a language
is colored.
So to select the CSS, you'll see this new layout that we have in place to change
the syntax highlighting for a given language. So it's organized by category and token.
So a category is a whole group of tokens that are similar; so for most languages, there
are things such as keywords, literals, punctuators, and white space. And under that,
it's broken down to the actual token; so under Punctuation, for example, there's things
such as colons, commas, equal sign, and so you can colorize both and entire category of
tokens and also a specific token.
So say, for example, I want to change just the way the colons are colorized, so I can
see my base colorization for all punctuators. They have a black foreground and they're bold.
So if I want to override this category-wide colorization for a specific token, for the colon
token, I'll select the box and then be able to change the color. I probably want a nicer,
flashier color for colons. Select that. And then also make them italicized. So after I
click OK, I can see my editor now has italicized, purple colons; yet all my other
punctuators are still the bold, black color.
So to go back and go...a deeper colorization option is to create a colorization region
for a given token. So in CSS, there’s comments that start with "/*"
and end in "*/". Now, say I want to have just the first two characters, the "/*", and the
last two characters, the "*/" colorized differently than the whole content of the comment,
that's actually possible with our new colorization system. So I'll select the Comment
token, override the category level colorization, still set the content to green, and I'll
select this Show Advanced Options check box. This will reveal the region colorization
part of the system that will allow you to colorize certain parts of a token.
So I want to add a new region that represents the first two characters of a comment token,
being the "/*". So I’ll say, give it a Name, Start, Comment, and the offset is "0", meaning the
start of the string, and I want it to be a Length of "2" to cover both the slash and the star;
and the color of it I will make a nice pink and make that bold, and so that covers the first part.
And now I want add a second region for the end of the comment--the "*/*. So to represent the end
of this token, there's a keyword link that allows you to start at the end of the string and work
your way back. So starting at Link - 2, I want to have another region of Link 2, and I will set
that to purple now, and, again, make that bold. And you'll notice that when I added a region, an
icon appeared next to the Comment token. This icon denotes that a token has regions. So when
you're looking at the token table, you can see which ones will have actual regions in this region
colorization area. So now I want to click OK, and now I see that Comment have these
regions, but still green comment content.
So this really allows you to play around with your colorization for any language, and if I want
to back up my changes, I can restore defaults at any time. But, also, I can import and export. So
these colorization files created are an XML based file format that can be created using our XML editor
and then imported into the ID. So say you tweaked a colorization and now you want to share it with
someone, just click Export, give it a name. .col is our colorization file format extension.
Save it out to desktop, and there you go.
And then, for example, now, if I restore default, I see that I no longer have colons colorized or comments
with regions, but I can import that colorization I just created, and now I see that I have my purple colons
and my comment tokens with my special starting and ending characters.
So that really highlights all the possibilities of the colorization system, and this is available for
each editor. So you can see for HTML has regions defined and also all the tokens and categories defined, too.
And this hopefully proves to be a more flexible system and allow people to share cool colorizations and really
go a step further into creating an editor environment that they truly enjoy.
So thank you for your time, and I hope you enjoy this new system.
[End of Video]
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