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Jim Blandy 1997-05-28 00:09:49 +00:00
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14
NEWS
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@ -12,7 +12,19 @@ Changes in Guile 1.2:
* Changes to the procedure for linking libguile with your programs
* Changes to Scheme functions
* Changes to Scheme functions and syntax
** Guile now supports a new R4RS-compliant syntax for keywords. A
token of the form #:NAME, where NAME has the same syntax as a Scheme
symbol, is the external representation of the keyword named NAME.
Keyword objects print using this syntax as well, so values containing
keyword objects can be read back into Guile.
Guile suports this read syntax, and uses this print syntax, regardless
of the current setting of the `keyword' read option. The `keyword'
read option only controls whether Guile recognizes the `:NAME' syntax,
which is incompatible with R4RS. (R4RS says such token represent
symbols.)
** Guile has regular expression support again. Guile 1.0 included
functions for matching regular expressions, based on the Rx library.