curs_insstr(3X) manual page
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insstr, insnstr, winsstr, winsnstr, mvinsstr,
mvinsnstr, mvwinsstr, mvwinsnstr - insert string before cursor in a curses
window
#include <curses.h>
int insstr(const char *str);
int insnstr(const char *str, int n);
int winsstr(WINDOW *win, const char *str);
int winsnstr(WINDOW *win, const char *str, int n);
int mvinsstr(int y, int x, const char *str);
int mvinsnstr(int y, int x, const char *str, int n);
int mvwinsstr(WINDOW *win, int y, int x, const char *str);
int mvwinsnstr(WINDOW *win, int y, int x, const char *str, int n);
These routines insert a character string (as many characters
as will fit on the line) before the character under the cursor. All characters
to the right of the cursor are shifted right with the possibility of the
rightmost characters on the line being lost. The cursor position does not
change (after moving to y, x, if specified). The functions with n as the
last argument insert a leading substring of at most n characters. If n<=0,
then the entire string is inserted.
Special characters are handled as in
addch.
All routines that return an integer return ERR upon failure
and OK (SVr4 specifies only "an integer value other than ERR") upon successful
completion, unless otherwise noted in the preceding routine descriptions.
X/Open defines no error conditions. In this implementation, if the window
parameter is null or the str parameter is null, an error is returned.
Functions
with a "mv" prefix first perform a cursor movement using wmove, and return
an error if the position is outside the window, or if the window pointer
is null.
Note that all but winsnstr may be macros.
These
functions are described in the XSI Curses standard, Issue 4, which adds
const qualifiers to the arguments.
The Single Unix Specification, Version
2 states that insnstr and winsnstr perform wrapping. This is probably an
error, since it makes this group of functions inconsistent. Also, no implementation
of curses documents this inconsistency.
curses(3X)
, curs_util(3X)
,
curs_clear(3X)
, curs_inch(3X)
.
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