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srfi-130
- Cursor-based string libraryThis is an reduced version of srfi-13
that supports cursors in
addition to indexes. The consistency with R7RS and recent srfis are
also considered.
The following are built-in. See 文字列カーソル, for the details.
string-cursor? string-cursor-start string-cursor-end string-cursor-next strig-cursor-prev string-cursor-forward string-cursor-back string-cursor=? string-cursor<? string-cursor<=? string-cursor>? string-cursor>=? string-cursor-diff string-cursor->index string-index->cursor
The following procedures are simply aliases of the builtin version
without the /cursor
or /cursors
suffix.
string->list/cursors string->vector/cursors string-copy/cursors string-ref/cursor substring/cursors
The following procedures are defined in srfi-13. See 文字列ライブラリ,
for the details. Note: Some of those procedures in srfi-13 accept
only indexes (e.g. string-index
). In srfi-130, both indexes
and cursors are accepted. Our srfi-13 implementation shares the same
procedure with srfi-130, so they accept both indexes and cursors but
such code won’t be portable as srfi-13.
string-null? string-any string-every string-tabulate string-unfold string-unfold-right reverse-list->string string-take string-drop string-take-right string-drop-right string-pad string-pad-right string-trim string-trim-right string-trim-both string-replace string-prefix-length string-suffix-length string-prefix? string-suffix string-concatenate string-concatenate-reverse string-count string-filter string-reverse
The following procedures are also defined in srfi-13 and redefined in
srfi-130. However, for operations going from left to right, the
srfi-130 version returns a cursor instead of an index when found or
(string-cursor-end)
of the input string when not found. For
operations going from right to left, it returns a cursor representing
a successor of the matching character when found, or
(string-cursor-begin)
of the input string when not found. In
contrast, the srfi-13 version returns either an index when found or
#f
otherwise.
string-fold string-fold-right string-index string-index-right string-skip string-skip-right
string-contains
is defined the same as srfi-13. However the
srfi-130 returns a cursor when a string is found, and #f
otherwise. In contrast, the srfi-13 version returns an index or
#f
. string-contains-right
is similar to
string-contains
except that the searching start from the end of
the string.
string-for-each-cursor
is similar to
string-for-each-index
from srfi-13 but proc
will take
the cursor instead of the index.
xsubstring
and string-delete
in srfi-13 are renamed
string-replicate
and string-remove
respectively in
srfi-130. Similar to srfi-152, the to argument is required in
string-replicate
.
string-split
is the same as one from srfi-152 or
gauche.stringutil
module.
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