X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fcurs_inchstr.3x;h=332604e789963892f213dbc8399c188663572512;hp=b7ba450717740694e38497ce6aea0a70be6ad554;hb=HEAD;hpb=17c5992a16be94247b83f2bbb9accdd9b7e7bb72 diff --git a/man/curs_inchstr.3x b/man/curs_inchstr.3x index b7ba4507..bcd5d685 100644 --- a/man/curs_inchstr.3x +++ b/man/curs_inchstr.3x @@ -1,5 +1,6 @@ .\"*************************************************************************** -.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc. * +.\" Copyright 2018-2023,2024 Thomas E. Dickey * +.\" Copyright 1998-2010,2017 Free Software Foundation, Inc. * .\" * .\" Permission is hereby granted, free of charge, to any person obtaining a * .\" copy of this software and associated documentation files (the * @@ -26,88 +27,109 @@ .\" authorization. * .\"*************************************************************************** .\" -.\" $Id: curs_inchstr.3x,v 1.18 2018/07/28 21:34:06 tom Exp $ -.TH curs_inchstr 3X "" -.ie \n(.g .ds `` \(lq -.el .ds `` `` -.ie \n(.g .ds '' \(rq -.el .ds '' '' +.\" $Id: curs_inchstr.3x,v 1.45 2024/04/20 21:20:07 tom Exp $ +.TH curs_inchstr 3X 2024-04-20 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls" +.ie \n(.g \{\ +.ds `` \(lq +.ds '' \(rq +.\} +.el \{\ +.ie t .ds `` `` +.el .ds `` "" +.ie t .ds '' '' +.el .ds '' "" +.\} +. .de bP .ie n .IP \(bu 4 .el .IP \(bu 2 .. -.na -.hy 0 .SH NAME -\fBinchstr\fR, -\fBinchnstr\fR, -\fBwinchstr\fR, -\fBwinchnstr\fR, -\fBmvinchstr\fR, -\fBmvinchnstr\fR, -\fBmvwinchstr\fR, -\fBmvwinchnstr\fR \- get a string of characters (and attributes) from a \fBcurses\fR window -.ad -.hy +\fB\%inchstr\fP, +\fB\%inchnstr\fP, +\fB\%winchstr\fP, +\fB\%winchnstr\fP, +\fB\%mvinchstr\fP, +\fB\%mvinchnstr\fP, +\fB\%mvwinchstr\fP, +\fB\%mvwinchnstr\fP \- +get a \fIcurses\fR character string from a window .SH SYNOPSIS -\fB#include \fR -.sp -\fBint inchstr(chtype *chstr);\fR -.br -\fBint inchnstr(chtype *chstr, int n);\fR -.br -\fBint winchstr(WINDOW *win, chtype *chstr);\fR -.br -\fBint winchnstr(WINDOW *win, chtype *chstr, int n);\fR -.br -\fBint mvinchstr(int y, int x, chtype *chstr);\fR -.br -\fBint mvinchnstr(int y, int x, chtype *chstr, int n);\fR -.br -\fBint mvwinchstr(WINDOW *win, int y, int x, chtype *chstr);\fR -.br -\fBint mvwinchnstr(WINDOW *win, int y, int x, chtype *chstr, int n);\fR -.br +.nf +\fB#include +.PP +\fBint inchstr(chtype *\fIchstr\fP); +\fBint inchnstr(chtype *\fIchstr\fP, int \fIn\fP); +\fBint winchstr(WINDOW *\fIwin\fP, chtype *\fIchstr\fP); +\fBint winchnstr(WINDOW *\fIwin\fP, chtype *\fIchstr\fP, int \fIn\fP); +.PP +\fBint mvinchstr(int \fIy\fP, int \fIx\fP, chtype *\fIchstr\fP); +\fBint mvinchnstr(int \fIy\fP, int \fIx\fP, chtype *\fIchstr\fP, int \fIn\fP); +\fBint mvwinchstr(WINDOW *\fIwin\fP, int \fIy\fP, int \fIx\fP, chtype *\fIchstr\fP); +\fBint mvwinchnstr(WINDOW *\fIwin\fP, int \fIy\fP, int \fIx\fP, chtype *\fIchstr\fP, int \fIn\fP); +.fi .SH DESCRIPTION -These routines return a NULL-terminated array of \fBchtype\fR quantities, +These routines return a NULL-terminated array of \fBchtype\fP quantities, starting at the current cursor position in the named window and ending at the right margin of the window. -The four functions with \fIn\fR as -the last argument, return a leading substring at most \fIn\fR characters long +.PP +The four functions with \fIn\fP as the last argument, return +a leading substring at most \fIn\fP characters long (exclusive of the trailing (chtype)0). -Constants defined in \fB\fR can be used with the \fB&\fR (logical +Transfer stops at the end of the current line, or when \fIn\fP characters have +been stored at the location referenced by \fIchstr\fP. +.PP +Constants defined in \fB\fP can be used with the \fB&\fP (logical AND) operator to extract the character or the attribute alone from any position -in the \fIchstr\fR [see \fBcurs_inch\fR(3X)]. +in the \fIchstr\fP [see \fBcurs_inch\fP(3X)]. .SH RETURN VALUE -All routines return the integer \fBERR\fR upon failure and an integer value -other than \fBERR\fR upon successful completion (the number of characters +All routines return the integer \fBERR\fP upon failure and an integer value +other than \fBERR\fP upon successful completion (the number of characters retrieved, exclusive of the trailing 0). .PP X/Open Curses defines no error conditions. -In this implementation: +This implementation returns an error .bP -If the \fIwin\fP parameter is null, an error is returned, +if the \fIwin\fP parameter is null or .bP -If the \fIchstr\fP parameter is null, an error is returned, +if the \fIchstr\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. +Functions prefixed with \*(``mv\*('' first perform cursor movement and +fail if the position +.RI ( y , +.IR x ) +is outside the window boundaries. .SH NOTES -Note that all routines except \fBwinchnstr\fR may be macros. +All routines except \fBwinchnstr\fP may be macros. +.PP SVr4 does not document whether the result string is zero-terminated; it does not document whether a length limit argument includes any trailing 0; and it does not document the meaning of the return value. +.PP +Reading a line that overflows the array pointed to by +\fIchstr\fP +with +\fBinchstr\fP, +\fBmvinchstr\fP, +\fBmvwinchstr\fP +or +\fBwinchstr\fP +causes undefined results. +Therefore, the use of +\fBinchnstr\fP, +\fBmvinchnstr\fP, +\fBmvwinchnstr\fP, or +\fBwinchnstr\fP +is recommended. .SH PORTABILITY -These functions are described in the XSI Curses standard, Issue 4. +These functions are described in X/Open Curses, Issue 4. It is no more specific than the SVr4 documentation on the trailing 0. It does specify -that the successful return of the functions is \fBOK\fR. +that the successful return of the functions is \fBOK\fP. .SH SEE ALSO -\fBcurses\fR(3X), \fBcurs_inch\fR(3X). -.PP -Comparable functions in the wide-character (ncursesw) library are -described in -\fBcurs_in_wchstr\fR(3X). +\fB\%curses\fP(3X), +\fB\%curs_inch\fP(3X), +\fB\%curs_inwstr\fP(3X), +\fB\%curs_in_wchstr\fP(3X)