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authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:35:40 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:35:40 +0100
commitb1de003dac299705a7f01c997d2b866bafe39926 (patch)
tree1cc16a3877e945116387a380f7f3023f81fa36e4 /doc/unistr.texi
parent752fd7247bc223bcea35bd89cf56d1c08ead9ba6 (diff)
parent3590c846d4c2febbc05b4ad6b14a06edc549e453 (diff)
Merge tag 'upstream/0.9.6+really0.9.6'
Upstream version 0.9.6+really0.9.6
Diffstat (limited to 'doc/unistr.texi')
-rw-r--r--doc/unistr.texi5
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/unistr.texi b/doc/unistr.texi
index ad04f42..60f1daa 100644
--- a/doc/unistr.texi
+++ b/doc/unistr.texi
@@ -17,6 +17,7 @@ essentially the equivalent of what @code{<string.h>} is for C strings.
@cindex validity
@cindex verification
+@cindex well-formed
The following function is available to verify the integrity of a Unicode string.
@deftypefun {const uint8_t *} u8_check (const uint8_t *@var{s}, size_t @var{n})
@@ -266,8 +267,10 @@ character in a Unicode string.
@deftypefunx {const uint16_t *} u16_prev (ucs4_t *@var{puc}, const uint16_t *@var{s}, const uint16_t *@var{start})
@deftypefunx {const uint32_t *} u32_prev (ucs4_t *@var{puc}, const uint32_t *@var{s}, const uint32_t *@var{start})
Backward iteration step. Advances the pointer to point to the previous
-character, or returns NULL if the beginning of the string had been reached.
+character (the one that ends at @code{@var{s}}), or returns NULL if the
+beginning of the string (specified by @code{@var{start}}) had been reached.
Puts the character's @code{ucs4_t} representation in @code{*@var{puc}}.
+Note that this function works only on well-formed Unicode strings.
@end deftypefun
The following functions determine the length of a Unicode string.