http://svn.plt-scheme.org/plt/branches/samth/match2
revisions 4220:4417
Included Matthew's version of regexp-error change, not Sam's.
Major changes:
- simplification pass
- define match-letrec in terms of match-define
- show steps of match-expander in macro stepper
- substantial refactoring of gen-match
- removed unused times-used-neg field of test struct
- added match:internal-error
- general refactoring
- bug fix in parsing of quasi-patterns
svn: r4418
Simplification expands match expanders and removes syntactic sugar.
Also, syntax errors are checked in the simplification phase, so better
error messages can be given.
- use begin-with-definitions for code clarity
- rename some variables
- better contracts (comments)
test-structure:
- delete unused field
update-counts:
- general reformatting
- delete dead code
- refactoring to eliminate duplication
Remove pointless optional arguments in getbindings.
Don't create unneccessary match-lambda*.
Implement keyword arguments to define-match-expander.
Lots of refactoring of gen-match for general clarity.
Use combinators instead of writing our own loops.
Simplify struct info accessor.
Add timing printer.
Refactor coupling/binding for general clarity.
Rewrite logical-equal not to use the expansion of match.
General replacement of () with [].
svn: r4192
