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-rw-r--r--doc/string.n16
1 files changed, 9 insertions, 7 deletions
diff --git a/doc/string.n b/doc/string.n
index 1cbea16..905f00a 100644
--- a/doc/string.n
+++ b/doc/string.n
@@ -149,7 +149,9 @@ Any Unicode printing character, including space.
.IP \fBpunct\fR 12
Any Unicode punctuation character.
.IP \fBspace\fR 12
-Any Unicode space character.
+Any Unicode whitespace character, break permitted here (U+0082),
+no break here (U+0083), zero with space (U+200b), word joiner
+(U+2060) and zero width no-break space (U+feff) (=BOM).
.IP \fBtrue\fR 12
Any of the forms allowed to \fBTcl_GetBoolean\fR where the value is
true.
@@ -335,22 +337,22 @@ specified using the forms described in \fBSTRING INDICES\fR.
.
Returns a value equal to \fIstring\fR except that any leading or
trailing characters present in the string given by \fIchars\fR are removed. If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
.TP
\fBstring trimleft \fIstring\fR ?\fIchars\fR?
.
Returns a value equal to \fIstring\fR except that any leading
characters present in the string given by \fIchars\fR are removed. If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
.TP
\fBstring trimright \fIstring\fR ?\fIchars\fR?
.
Returns a value equal to \fIstring\fR except that any trailing
characters present in the string given by \fIchars\fR are removed. If
-\fIchars\fR is not specified then white space is removed (spaces,
-tabs, newlines, and carriage returns).
+\fIchars\fR is not specified then white space is removed (any character
+for which \fBstring is space\fR returns 1, and "\0").
.TP
\fBstring wordend \fIstring charIndex\fR
.