diff options
Diffstat (limited to 'doc/ref/api-data.texi')
-rwxr-xr-x | doc/ref/api-data.texi | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/doc/ref/api-data.texi b/doc/ref/api-data.texi index 5cbf4b17b..cf0d32113 100755 --- a/doc/ref/api-data.texi +++ b/doc/ref/api-data.texi @@ -2690,6 +2690,14 @@ Vertical tab character (ASCII 11). @item @nicode{\xHH} Character code given by two hexadecimal digits. For example @nicode{\x7f} for an ASCII DEL (127). + +@item @nicode{\uHHHH} +Character code given by four hexadecimal digits. For example +@nicode{\u0100} for a capital A with macron (U+0100). + +@item @nicode{\UHHHHHH} +Character code given by six hexadecimal digits. For example +@nicode{\U010402}. @end table @noindent @@ -3110,9 +3118,14 @@ The procedures in this section are similar to the character ordering predicates (@pxref{Characters}), but are defined on character sequences. The first set is specified in R5RS and has names that end in @code{?}. -The second set is specified in SRFI-13 and the names have no ending -@code{?}. The predicates ending in @code{-ci} ignore the character case -when comparing strings. @xref{Text Collation, the @code{(ice-9 +The second set is specified in SRFI-13 and the names have not ending +@code{?}. + +The predicates ending in @code{-ci} ignore the character case +when comparing strings. For now, case-insensitive comparison is done +using the R5RS rules, where every lower-case character that has a +single character upper-case form is converted to uppercase before +comparison. See @xref{Text Collation, the @code{(ice-9 i18n)} module}, for locale-dependent string comparison. @rnindex string=? |