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curs_insstr

Section: Miscellaneous Library Functions (3X)
Updated:
Index Return to Main Contents
 

NAME

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

SYNOPSIS

#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);
 

DESCRIPTION

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.  

RETURN VALUE

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.  

NOTES

Note that all but winsnstr may be macros.  

PORTABILITY

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.  

SEE ALSO

curses(3X), curs_util(3X), curs_clear(3X), curs_inch(3X).


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
NOTES
PORTABILITY
SEE ALSO


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