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curs_insstr(3x)

curs_insstr(3x)                  Library calls                 curs_insstr(3x)

NAME
       insstr,  winsstr,  mvinsstr,  mvinsnstr,  insnstr, winsnstr, mvwinsstr,
       mvwinsnstr - insert a string in a curses window

SYNOPSIS
       #include <ncursesw/curses.h>

       int insstr(const char * str);
       int winsstr(WINDOW * win, const char * str);
       int mvinsstr(int y, int x, const char * str);
       int mvwinsstr(WINDOW * win, int y, int x, const char * str);

       int insnstr(const char * str, int n);
       int winsnstr(WINDOW * win, const char * str, int n);
       int mvinsnstr(int y, int x, const char * str, int n);
       int mvwinsnstr(WINDOW * win, int y, int x, const char * str,
             int n);

DESCRIPTION
       winsstr inserts a string str before the character at the cursor in win‐
       dow win as if by calling winsch(3X) for each  char  in  str.   No  line
       wrapping  is  performed.   Characters  to  the  right of the cursor are
       shifted right; those at the right edge  of  the  window  may  be  lost.
       winsstr  stops  inserting  if it would have to wrap to the next line to
       write the next char in str.  The cursor position does not change (after
       moving to (y, x), if specified).  insnstr does the same, but inserts at
       most n characters, or as many as possible (up to the end of  the  line)
       if  n  is  negative.  ncurses(3X) describes the variants of these func‐
       tions.

RETURN VALUE
       These functions return OK on success and ERR on failure.

       In ncurses, they return ERR if

       •   win is NULL,

       •   str is NULL, or

       •   an internal winsch(3X) call returns ERR.

       Functions prefixed with “mv” first perform cursor movement and fail  if
       the position (y, x) is outside the window boundaries.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   library/ncurses = Stability Uncommitted

NOTES
       All of these functions except winsnstr may be implemented as macros.

       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at:
       https://github.com/oracle/solaris-userland

       The original community source was downloaded from:
       https://invisible-mirror.net/archives/ncurses/cur‐
       rent/ncurses-6.5-20250614.tgz

       Further information about this software can be found on the open source
       community website at https://invisible-island.net/ncurses/.

EXTENSIONS
       insnstr, winsnstr, mvinsnstr, and mvwinsnstr's acceptance of negative n
       values is an ncurses extension.

PORTABILITY
       Applications employing ncurses extensions should condition their use on
       the visibility of the NCURSES_VERSION preprocessor macro.

       X/Open Curses Issue 4 describes these functions.  It specifies no error
       conditions for them.

       SVr4 describes a successful return value  only  as  “an  integer  value
       other than ERR”.

       Issue 4  distinguished  insnstr  and  winsnstr from the other functions
       documented above by stating they “do not perform wrapping”.   This  was
       probably an error, since it makes this group of functions inconsistent.
       No  implementation  of curses manifests this inconsistency, and Issue 7
       removed the claim.

       Issue 4 states that the entire string is inserted if n is less than  1.
       This  is probably an error, because it is inconsistent with other func‐
       tions such as waddstr, and differs from the  SVr4  curses  and  Solaris
       xcurses implementations.  Nevertheless, Issue 7 retains the language.

HISTORY
       SVr3.1 (1987) introduced winsstr and winsnstr and their variants.

SEE ALSO
       curs_ins_wstr(3X) describes comparable functions of the ncurses library
       in its wide-character configuration (ncursesw).

       curses(3X), curs_inch(3X), curs_ins_wstr(3X), curs_util(3X)


ncurses 6.5                       2025-02-01                   curs_insstr(3x)
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