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Diffstat (limited to 'doc/html/man/curs_inchstr.3x.html')
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1 files changed, 59 insertions, 47 deletions
diff --git a/doc/html/man/curs_inchstr.3x.html b/doc/html/man/curs_inchstr.3x.html index 1eeb1b3a3c5e..362f541aed56 100644 --- a/doc/html/man/curs_inchstr.3x.html +++ b/doc/html/man/curs_inchstr.3x.html @@ -1,6 +1,6 @@ <!-- **************************************************************************** - * Copyright 2018-2023,2024 Thomas E. Dickey * + * Copyright 2018-2024,2025 Thomas E. Dickey * * Copyright 1998-2010,2017 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * @@ -27,25 +27,23 @@ * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** - * @Id: curs_inchstr.3x,v 1.45 2024/04/20 21:20:07 tom Exp @ + * @Id: curs_inchstr.3x,v 1.65 2025/10/21 00:05:02 tom Exp @ --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML> <HEAD> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="generator" content="Manpage converted by man2html - see https://invisible-island.net/scripts/readme.html#others_scripts"> -<TITLE>curs_inchstr 3x 2024-04-20 ncurses 6.5 Library calls</TITLE> +<TITLE>curs_inchstr 3x 2025-10-20 ncurses 6.6 Library calls</TITLE> <link rel="author" href="mailto:bug-ncurses@gnu.org"> </HEAD> <BODY> -<H1 class="no-header">curs_inchstr 3x 2024-04-20 ncurses 6.5 Library calls</H1> +<H1 class="no-header">curs_inchstr 3x 2025-10-20 ncurses 6.6 Library calls</H1> <PRE> <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG> - - </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE> <STRONG>inchstr</STRONG>, <STRONG>inchnstr</STRONG>, <STRONG>winchstr</STRONG>, <STRONG>winchnstr</STRONG>, <STRONG>mvinchstr</STRONG>, <STRONG>mvinchnstr</STRONG>, <STRONG>mvwinchstr</STRONG>, <STRONG>mvwinchnstr</STRONG> - get a <EM>curses</EM> character string from a window @@ -54,73 +52,85 @@ </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> - <STRONG>int</STRONG> <STRONG>inchstr(chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>inchnstr(chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>winchstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>winchnstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>inchstr(chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>inchnstr(chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>winchstr(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>winchnstr(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>mvinchstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>mvinchnstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>mvwinchstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>);</STRONG> - <STRONG>int</STRONG> <STRONG>mvwinchnstr(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG><EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>mvinchstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>mvinchnstr(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>mvwinchstr(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>mvwinchnstr(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <STRONG>*</STRONG> <EM>chstr</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>n</EM><STRONG>);</STRONG> </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE> - These routines return a NULL-terminated array of <STRONG>chtype</STRONG> quantities, - starting at the current cursor position in the named window and ending - at the right margin of the window. - - The four functions with <EM>n</EM> as the last argument, return a leading - substring at most <EM>n</EM> characters long (exclusive of the trailing - (chtype)0). Transfer stops at the end of the current line, or when <EM>n</EM> - characters have been stored at the location referenced by <EM>chstr</EM>. - - Constants defined in <STRONG><curses.h></STRONG> can be used with the <STRONG>&</STRONG> (logical AND) - operator to extract the character or the attribute alone from any - position in the <EM>chstr</EM> [see <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>]. + <STRONG>winchstr</STRONG> extracts a <EM>curses</EM> character string from a <EM>curses</EM> window <EM>win</EM>, + starting at the cursor and stopping at the end of the line, and stores + it in <EM>chstr</EM>, terminating it with a null <EM>curses</EM> character. <STRONG>winchnstr</STRONG> + does the same, but copies at most <EM>n</EM> <EM>curses</EM> characters from <EM>win</EM>. A + negative <EM>n</EM> implies no limit; <STRONG>winchnstr</STRONG> then works like <STRONG>winchstr</STRONG>. + <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> describes the variants of these functions. </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE> - All routines return the integer <STRONG>ERR</STRONG> upon failure and an integer value - other than <STRONG>ERR</STRONG> upon successful completion (the number of characters - retrieved, exclusive of the trailing 0). + These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure. + + In <EM>ncurses</EM>, these functions fail if - X/Open Curses defines no error conditions. This implementation returns - an error + <STRONG>o</STRONG> the <EM>curses</EM> screen has not been initialized, - <STRONG>o</STRONG> if the <EM>win</EM> parameter is null or + <STRONG>o</STRONG> (for functions taking a <EM>WINDOW</EM> pointer argument) <EM>win</EM> is a null + pointer, or - <STRONG>o</STRONG> if the <EM>chstr</EM> parameter is null. + <STRONG>o</STRONG> <EM>chstr</EM> is a null pointer. Functions prefixed with "mv" first perform cursor movement and fail if the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries. </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE> - All routines except <STRONG>winchnstr</STRONG> may be macros. + All of these functions except <STRONG>winchnstr</STRONG> may be implemented as macros. + + Reading a line that overflows the array pointed to by <EM>chstr</EM> and its + variants causes undefined results. Instead, use the <EM>n</EM>-infixed + functions with a positive <EM>n</EM> argument no larger than the size of the + buffer backing <EM>chstr</EM>. - 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. - Reading a line that overflows the array pointed to by <EM>chstr</EM> with - <STRONG>inchstr</STRONG>, <STRONG>mvinchstr</STRONG>, <STRONG>mvwinchstr</STRONG> or <STRONG>winchstr</STRONG> causes undefined results. - Therefore, the use of <STRONG>inchnstr</STRONG>, <STRONG>mvinchnstr</STRONG>, <STRONG>mvwinchnstr</STRONG>, or <STRONG>winchnstr</STRONG> - is recommended. +</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE> + <STRONG>inchnstr</STRONG>, <STRONG>winchnstr</STRONG>, <STRONG>mvinchnstr</STRONG>, and <STRONG>mvwinchnstr</STRONG>'s acceptance of + negative <EM>n</EM> values is an <EM>ncurses</EM> extension. </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE> - 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 <STRONG>OK</STRONG>. + Applications employing <EM>ncurses</EM> extensions should condition their use on + the visibility of the <STRONG>NCURSES_VERSION</STRONG> preprocessor macro. + X/Open Curses Issue 4 describes these functions. It specifies no error + conditions for them. It characterizes the strings stored by these + functions as containing "at most <EM>n</EM> elements" from a window, but does + not specify whether the string stored by these functions is null- + terminated. + + SVr4 does not document whether it null-terminates the <EM>curses</EM> character + string it stores in <EM>chstr</EM>, and does not document whether a trailing + null <EM>curses</EM> character counts toward the length limit <EM>n</EM>. + + SVr4 describes a successful return value only as "an integer value + other than <EM>ERR</EM>". -</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE> - <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>, <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>, <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG> +</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE> + SVr3.1 (1987) introduced these functions. + + +</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE> + <STRONG><A HREF="curs_in_wchstr.3x.html">curs_in_wchstr(3x)</A></STRONG> describes comparable functions of the <EM>ncurses</EM> + library in its wide-character configuration (<EM>ncursesw</EM>). + <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>, <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG> -ncurses 6.5 2024-04-20 <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG> +ncurses 6.6 2025-10-20 <STRONG><A HREF="curs_inchstr.3x.html">curs_inchstr(3x)</A></STRONG> </PRE> <div class="nav"> <ul> @@ -129,7 +139,9 @@ ncurses 6.5 2024-04-20 <STRONG><A HREF="c <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li> <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li> <li><a href="#h2-NOTES">NOTES</a></li> +<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li> <li><a href="#h2-PORTABILITY">PORTABILITY</a></li> +<li><a href="#h2-HISTORY">HISTORY</a></li> <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li> </ul> </div> |
