ncurses 6.4 - patch 20231118

[ncurses.git] / man / curs_in_wchstr.3x

diff --git a/man/curs_in_wchstr.3x b/man/curs_in_wchstr.3x
index 91f22c14294e63475b1e1f88b92de549ba5a5617..995f4f86348514be6252397b2ccbf2f2f83d6641 100644 (file)
--- a/man/curs_in_wchstr.3x
+++ b/man/curs_in_wchstr.3x
@@ -27,8 +27,8 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_in_wchstr.3x,v 1.28 2023/11/11 11:42:45 tom Exp $
-.TH curs_in_wchstr 3X 2023-11-11 "ncurses 6.4" "Library calls"
+.\" $Id: curs_in_wchstr.3x,v 1.32 2023/11/18 20:55:18 tom Exp $
+.TH curs_in_wchstr 3X 2023-11-18 "ncurses 6.4" "Library calls"
 .ie \n(.g \{\
 .ds `` \(lq
 .ds '' \(rq
@@ -39,6 +39,11 @@
 .ie t .ds '' ''
 .el   .ds '' ""
 .\}
+.
+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..
 .SH NAME
 \fB\%in_wchstr\fP,
 \fB\%in_wchnstr\fP,
@@ -68,22 +73,33 @@ These functions return an array of complex characters in \fIwchstr\fP,
 starting at the current cursor position in the named window.
 Attributes (rendition) are stored with the characters.
 .PP
-The
-\fBin_wchnstr\fP,
-\fBmvin_wchnstr\fP,
-\fBmvwin_wchnstr\fP
-and
-\fBwin_wchnstr\fP
-fill the array
-with at most
-\fIn\fP
-\fBcchar_t\fP
-elements.
+The four functions with \fIn\fP as the last argument return
+a leading substring at most \fIn\fP characters long
+(exclusive of the trailing zeroed \fBcchar_t\fR.
+Transfer stops at the end of the current line, or when \fIn\fP characters have
+been stored at the location referenced by \fIwchstr\fP.
+.PP
+Constants defined in \fB<curses.h>\fP can be used with the \fB&\fP (logical
+AND) operator to extract the character or the attribute alone from any position
+in the \fIwchstr\fP [see \fBgetcchar\fP(3X)].
+.SH RETURN VALUE
+Upon successful completion, these functions return
+\fBOK\fP.
+Otherwise, they return
+\fBERR\fP.
+.PP
+X/Open Curses defines no error conditions.
+This implementation returns an error
+.bP
+if the \fIwin\fP parameter is null or
+.bP
+if the \fIwchstr\fP parameter is null.
+.PP
+Functions with a \*(``mv\*('' prefix first perform a cursor movement using
+\fBwmove\fP, and return an error if the position is outside the window,
+or if the window pointer is null.
 .SH NOTES
-Note that all routines except
-\fBwin_wchnstr\fP
-may be
-macros.
+All routines except \fBwin_wchnstr\fP may be macros.
 .PP
 Reading a line that overflows the array pointed to by
 \fIwchstr\fP
@@ -100,15 +116,6 @@ Therefore, the use of
 \fBmvwin_wchnstr\fP, or
 \fBwin_wchnstr\fP
 is recommended.
-.SH RETURN VALUE
-Upon successful completion, these functions return
-\fBOK\fP.
-Otherwise, they return
-\fBERR\fP.
-.PP
-Functions with a \*(``mv\*('' prefix first perform a cursor movement using
-\fBwmove\fP, and return an error if the position is outside the window,
-or if the window pointer is null.
 .SH PORTABILITY
 The XSI Curses defines no error conditions.
 This implementation checks for null pointers,