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Updated print-options.

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Marius Vollmer 2005-09-04 21:31:05 +00:00
parent 7b4a9e526e
commit 227eafdb3c
2 changed files with 31 additions and 2 deletions
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19
NEWS
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@ -335,6 +335,25 @@ Now:
guile> #: foo
#:foo
** The printing of symbols that might look like keywords can be
controlled.
The new printer option 'quote-keywordish-symbols' controls how symbols
are printed that have a colon as their first or last character. The
default now is to only quote a symbol with #{...}# when the read
option 'keywords' is not '#f'. Thus:
guile> (define foo (string->symbol ":foo"))
guile> (read-set! keywords #f)
guile> foo
:foo
guile> (read-set! keywords 'prefix)
guile> foo
#{:foo}#
guile> (print-set! quote-keywordish-symbols #f)
guile> foo
:foo
** 'while' now provides 'break' and 'continue'
break and continue were previously bound in a while loop, but not

14
doc/ref/api-options.texi
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@ -513,8 +513,18 @@ Here is the list of print options generated by typing
values.
@smallexample
source no Print closures with source.
closure-hook #f Hook for printing closures.
quote-keywordish-symbols reader How to print symbols that have a colon
as their first or last character. The
value '#f' does not quote the colons;
'#t' quotes them; 'reader' quotes
them when the reader option
'keywords' is not '#f'.
highlight-prefix @{ The string to print before highlighted values.
highlight-suffix @} The string to print after highlighted values.
source no Print closures with source.
closure-hook #f Hook for printing closures.
@end smallexample