Great! i gonna test it now! On 14 mar, 02:49, Nathan Weizenbaum <[EMAIL PROTECTED]> wrote: > Hello, fellow Hamlites, > > Haml 1.5 has been released! Download the new version and give it a try: > "./script/plugin installhttp://hamptoncatlin.com/svn/haml/tags/stable"; > for Rails, or just "gem install haml" if you want it on its own. It's > absolutely worth the update. Along with plenty of bug fixes, version 1.5 > adds various usefull and snazzy features to Haml. But the biggest news > in 1.5 isn't a new feature: it's an entirely new templating engine. > > You see, after using Haml for a while, one tends to get used to the idea > that markup can, indeed /should/, be beautiful and concise. Other, less > elegant markup languages begin to seem a little grating. While working > on a stylesheet, one might think "I can right HTML in an elegant manner. > Why can't I do the same thing with CSS?" Well, we thought that, too. So > we came up with a solution: Syntactically Awesome StyleSheets, or "Sass." > > Sass is a templating engine for CSS that's bundled along with Haml 1.5. > It allows you to write CSS using the same elegant whitespace-sensitive > style used in Haml. It eliminates the redundancy formerly inherent in > nesting CSS styles, using "namespace" styles such as font-family and > font-weight, re-using the same value, and even writing out CSS rules. > Just stick your ".sass" files in "public/stylesheets/sass", and > corresponding ".css" files will be created whenever you need them to be. > You can read all about it athttp://haml.hamptoncatlin.com/docs/sass/ref > (not quite up as of the sending of this email... wait half an hour, and > it will be), but here's a sample to get you interested: > > !main_color = #82fc08 > > #main > :width 80% > :color = !main_color > :font > :family sans-serif > :size 1.3em > > p > :color = !main_color - #404040 > :font-size 0.8em > > This compiles to > > #main { > width: 80%; > color: #82fc08; > font-family: sans-serif; > font-size: 1.3em; } > #main p { > color: #42bc00; > font-size: 0.8em; } > > Now, of course Sass is all exciting and wonderful, but what about those > new Haml features I was mentioning? Well, they're delightful as well. > For instance, Haml now does error handling. Before 1.5, invalid input > wouldn't cause an error; it would just produce undefined, often very > strange, output. This was the cause of many confusing issues for many > people, even those of us who created Haml. Haml 1.5, however, checks for > syntax errors, and will notify you exactly what went wrong and where in > the document the error occurred, in a way that Rails can then format as > a good old error page. > > Haml 1.5 also adds a new type of command: filters, which use the ":" > character followed by the name of the filter. Filters take an indented > block of text and pass it through some sort of text processor, > independent of Haml, and insert the result (as properly indented as > possible) into the Haml document. For example, if you wanted to add some > "humane" markup to your document using Textile, you could do: > > .content > :textile > h1. Blah! > > Blah. Blah blah blah blah, blah blah blah. > *Blah* blah blah, blah bl-blah blah blah. > > _Blah_ blah blah blah. > > This would compile to: > > <div class='content'> > <h1>Blah!</h1> > > <p>Blah. Blah blah blah blah, blah blah blah.</p> > > <p><strong>Blah</strong> blah blah, blah bl-blah blah blah.</p> > > <p><em>Blah</em> blah blah blah.</p> > </div> > > There are lots of predefined filters, including: > > * :plain doesn't parse the text at all, allowing you to put "." and > other Haml-significant characters at the beginning of a line > without escaping them with a backslash. > * :ruby interprets the text as Ruby code, and inserts all output > printed to stdout into the Haml document. > * :preserve preserves all whitespace in the text, even at the > beginning of lines. > * :erb parses the text with ERb, the engine used for RHTML. > * :sass parses the text with Sass, of course. > * :textile and :markdown run the respective text interpreters over > the text. :textile is only available if the RedCloth gem is > installed; :markdown is available if either RedCloth or BlueCloth > is installed. > > The introduction of filters also means that the use of the "~" character > to denote a nested block of whitespace-sensitive text is now entirely > redundant. As such, we've deprecated it; it's still usable in 1.5, but a > warning will pop up, and it will be removed in the next version. The > :preserve filter should be used instead. The other use of the "~" > character, to preserve the whitespace in "<pre>" and "<textarea>" tags > output by functions, is still available. > > Enjoy! > - Nathan
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