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Annotation of 43BSDReno/lib/libcurses/insch.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1981 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: static char sccsid[] = "@(#)insch.c    5.4 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: # include      "curses.ext"
                     25: 
                     26: /*
                     27:  *     This routine performs an insert-char on the line, leaving
                     28:  * (_cury,_curx) unchanged.
                     29:  *
                     30:  */
                     31: winsch(win, c)
                     32: reg WINDOW     *win;
                     33: char           c; {
                     34: 
                     35:        reg char        *temp1, *temp2;
                     36:        reg char        *end;
                     37: 
                     38:        end = &win->_y[win->_cury][win->_curx];
                     39:        temp1 = &win->_y[win->_cury][win->_maxx - 1];
                     40:        temp2 = temp1 - 1;
                     41:        while (temp1 > end)
                     42:                *temp1-- = *temp2--;
                     43:        *temp1 = c;
                     44:        touchline(win, win->_cury, win->_curx, win->_maxx - 1);
                     45:        if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
                     46:                if (win->_scroll) {
                     47:                        wrefresh(win);
                     48:                        scroll(win);
                     49:                        win->_cury--;
                     50:                }
                     51:                else
                     52:                        return ERR;
                     53:        return OK;
                     54: }

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