ncurses/lib_insstr.c

   1
   2 /***************************************************************************
   3 *                            COPYRIGHT NOTICE                              *
   4 ****************************************************************************
   5 *                ncurses is copyright (C) 1992-1995                        *
   6 *                          Zeyd M. Ben-Halim                               *
   7 *                          zmbenhal@netcom.com                             *
   8 *                          Eric S. Raymond                                 *
   9 *                          esr@snark.thyrsus.com                           *
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  21
  22
  23
  24 /*
  25 **      lib_insstr.c
  26 **
  27 **      The routine winsnstr().
  28 **
  29 */
  30
  31 #include <curses.priv.h>
  32 #include <ctype.h>
  33
  34 MODULE_ID("$Id: lib_insstr.c,v 1.9 1997/02/15 16:09:53 tom Exp $")
  35
  36 int winsnstr(WINDOW *win, const char *str, int n)
  37 {
  38 short   oy = win->_cury;
  39 short   ox = win->_curx;
  40 const char *cp;
  41
  42         T((T_CALLED("winsstr(%p,%s,%d)"), win, _nc_visbuf(str), n));
  43
  44         for (cp = str; *cp && (n <= 0 || (cp - str) < n); cp++) {
  45                 if (*cp == '\n' || *cp == '\r' || *cp == '\t' || *cp == '\b')
  46                         _nc_waddch_nosync(win, (chtype)(*cp));
  47                 else if (is7bits(*cp) && iscntrl(*cp)) {
  48                         winsch(win, ' ' + (chtype)(*cp));
  49                         winsch(win, '^');
  50                         win->_curx += 2;
  51                 } else {
  52                         winsch(win, (chtype)(*cp));
  53                         win->_curx++;
  54                 }
  55                 if (win->_curx > win->_maxx)
  56                         win->_curx = win->_maxx;
  57         }
  58
  59         win->_curx = ox;
  60         win->_cury = oy;
  61         _nc_synchook(win);
  62         returnCode(OK);
  63 }