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(Miscellaneous String Operations): In string-filter

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and string-delete, note result may share with input string (as allowed
by srfi spec).
This commit is contained in:
Kevin Ryde 2005-06-10 22:38:57 +00:00
parent f29749529b
commit 08de3e2424
1 changed files with 12 additions and 10 deletions
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22
doc/ref/api-data.texi
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@ -3605,20 +3605,22 @@ of @var{s}.
@deffn {Scheme Procedure} string-filter s char_pred [start [end]]
@deffnx {C Function} scm_string_filter (s, char_pred, start, end)
Filter the string @var{s}, retaining only those characters that
satisfy the @var{char_pred} argument. If the argument is a
procedure, it is applied to each character as a predicate, if
it is a character, it is tested for equality and if it is a
character set, it is tested for membership.
Filter the string @var{s}, retaining only those characters which
satisfy @var{char_pred}. The result may share storage with @var{s}.
If @var{char_pred} is a procedure, it is applied to each character as
a predicate, if it is a character, it is tested for equality and if it
is a character set, it is tested for membership.
@end deffn
@deffn {Scheme Procedure} string-delete s char_pred [start [end]]
@deffnx {C Function} scm_string_delete (s, char_pred, start, end)
Filter the string @var{s}, retaining only those characters that
do not satisfy the @var{char_pred} argument. If the argument
is a procedure, it is applied to each character as a predicate,
if it is a character, it is tested for equality and if it is a
character set, it is tested for membership.
Delete characters satisfying @var{char_pred} from @var{s}. The result
may share storage with @var{s}.
If @var{char_pred} is a procedure, it is applied to each character as
a predicate, if it is a character, it is tested for equality and if it
is a character set, it is tested for membership.
@end deffn
@node Conversion to/from C