2003-05-27  Martin Bravenboer  <martin@mbravenboer.org>

  * parse/sdf-ensugar.str and desugar.str: added (de)sugaring of no-attrs
    to attrs([]). 

  * syn/Stratego-Sdf2.sdf: added variables for symbols, attributes and 
    productions. Quotations for Grammar and Attributes.

2003-05-26  Martin Bravenboer  <martin@mbravenboer.org>

  * Added quotation and anti-quotation of symbols to Stratego-Sdf2

  * Added initial sdf-ensugar.

  * Added initial sdf-desugar. What is sugar? What is normalization?

  * Added initial Sdf2 in Stratego syntax definition. Useful
    for generation of Sdf2 and unit-testing of sdf-tools.

2003-05-23  Martin Bravenboer  <martin@mbravenboer.org>

  * Creation of sdf-front. This is a collection of material
    from sdf-tools that hasn't yet been distributed.