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[ANN] Candle 0.9.1 Beta Release - a new scripting language for XML and m

• From: henryluo@candlescript.org
• To: xml-dev@lists.xml.org
• Date: Sun, 31 Jul 2011 23:03:43 -0400

• Candle is an unified language instead of two highly-overlapping languages. Candle uses scripting syntax instead of the highly verbose markup syntax of XSLT.
• http://www.candlescript.org/doc/candle-markup-reference.htm language is strongly-typed even without schema, whereas XML is only weakly-typed without schema.
• Candle consists of a http://www.candlescript.org/doc/candle-pattern-reference.htm which cleanly unifies several pattern-related DSLs (including RegEx, BNF, RELAX NG, XQuery Sequence Type). It can easily match on sequence of items, nodes and characters.
• Candle unifies functional and procedural programming. Through a mechanism I called separation-of-side-effects, Candle unifies two worlds in a more orderly manner then any existing multi-paradigm programming languages. In Candle, routines are divided into functions and methods. Functions are routines without side-effects and methods are routines with side-effects. The rule of separation-of-side-effects is that methods can call functions, but not vice versa. And expressions in Candle are always functional. In this way, pure functional islands are well-preserved in the vast sea of procedural code.
• Candle is a general-purpose scripting language like Python, whereas XSLT and XQuery are just DSLs. Candle alone is sufficient to develop complex command-line, desktop and Internet applications, whereas XSLT and XQuery still need to integrate with other languages to develop a serious application.

For more information, you can visit the http://www.candlescript.org/ (http://www.candlescript.org/) or the SourceForge project.

You can also read two blog articles http://candleapp.blogspot.com/2011/06/why-i-invented-candle-i.html and http://candleapp.blogspot.com/2011/07/why-i-invented-candle-ii.html to understand the design rationales behind Candle.

Your feedback on Candle is highly appreciated. I'm here anxiously waiting.

Henry

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Candle App Platform - An unified platform for desktop and Internet apps.