1 /* $NetBSD: curses.c,v 1.23 2009/07/22 16:57:14 roy Exp $ */ 2 3 /* 4 * Copyright (c) 1981, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #include <stdlib.h> 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)curses.c 8.3 (Berkeley) 5/4/94"; 37 #else 38 __RCSID("$NetBSD: curses.c,v 1.23 2009/07/22 16:57:14 roy Exp $"); 39 #endif 40 #endif /* not lint */ 41 42 #include "curses.h" 43 #include "curses_private.h" 44 45 /* Private. */ 46 int __echoit = 1; /* If stty indicates ECHO. */ 47 int __pfast; 48 int __rawmode = 0; /* If stty indicates RAW mode. */ 49 int __noqch = 0; 50 /* If terminal doesn't have 51 * insert/delete line capabilities 52 * for quick change on refresh. 53 */ 54 55 char PC; 56 char __tc_am, __tc_bs, __tc_cc, __tc_da, __tc_eo, 57 __tc_hc, __tc_hl, __tc_in, __tc_mi, __tc_ms, 58 __tc_nc, __tc_ns, __tc_os, __tc_ul, __tc_ut, 59 __tc_xb, __tc_xn, __tc_xt, __tc_xs, __tc_xx; 60 char __CA; 61 int __tc_pa, __tc_Co, __tc_NC; 62 char *__tc_ac, *__tc_AB, *__tc_ae, *__tc_AF, *__tc_AL, 63 *__tc_al, *__tc_as, *__tc_bc, *__tc_bl, *__tc_bt, 64 *__tc_cd, *__tc_ce, *__tc_cl, *__tc_cm, *__tc_cr, 65 *__tc_cs, *__tc_dc, *__tc_DL, *__tc_dl, *__tc_dm, 66 *__tc_DO, *__tc_do, *__tc_eA, *__tc_ed, *__tc_ei, 67 *__tc_ho, *__tc_Ic, *__tc_ic, *__tc_im, *__tc_Ip, 68 *__tc_ip, *__tc_k0, *__tc_k1, *__tc_k2, *__tc_k3, 69 *__tc_k4, *__tc_k5, *__tc_k6, *__tc_k7, *__tc_k8, 70 *__tc_k9, *__tc_kd, *__tc_ke, *__tc_kh, *__tc_kl, 71 *__tc_kr, *__tc_ks, *__tc_ku, *__tc_LE, *__tc_ll, 72 *__tc_ma, *__tc_mb, *__tc_md, *__tc_me, *__tc_mh, 73 *__tc_mk, *__tc_mm, *__tc_mo, *__tc_mp, *__tc_mr, 74 *__tc_nd, *__tc_nl, *__tc_oc, *__tc_op, 75 *__tc_rc, *__tc_RI, *__tc_Sb, *__tc_sc, *__tc_se, 76 *__tc_SF, *__tc_Sf, *__tc_sf, *__tc_so, *__tc_sp, 77 *__tc_SR, *__tc_sr, *__tc_ta, *__tc_te, *__tc_ti, 78 *__tc_uc, *__tc_ue, *__tc_UP, *__tc_up, *__tc_us, 79 *__tc_vb, *__tc_ve, *__tc_vi, *__tc_vs; 80 81 #ifdef HAVE_WCHAR 82 char *__tc_Xh, *__tc_Xl, *__tc_Xo, *__tc_Xr, *__tc_Xt, 83 *__tc_Xv; 84 #endif /* HAVE_WCHAR */ 85 86 /* 87 * Public. 88 * 89 * XXX 90 * UPPERCASE isn't used by libcurses, and is left for backward 91 * compatibility only. 92 */ 93 WINDOW *curscr; /* Current screen. */ 94 WINDOW *stdscr; /* Standard screen. */ 95 WINDOW *__virtscr; /* Virtual screen (for doupdate()). */ 96 SCREEN *_cursesi_screen; /* the current screen we are using */ 97 int COLS; /* Columns on the screen. */ 98 int LINES; /* Lines on the screen. */ 99 int COLORS; /* Maximum colors on the screen */ 100 int COLOR_PAIRS = 0; /* Maximum color pairs on the screen */ 101 int My_term = 0; /* Use Def_term regardless. */ 102 const char *Def_term = "unknown"; /* Default terminal type. */ 103 char __GT; /* Gtty indicates tabs. */ 104 char __NONL; /* Term can't hack LF doing a CR. */ 105 char __UPPERCASE; /* Terminal is uppercase only. */ 106 107 #ifdef HAVE_WCHAR 108 /* 109 * Copy the non-spacing character list (src_nsp) to the given character, 110 * allocate or free storage as required. 111 */ 112 int 113 _cursesi_copy_nsp(nschar_t *src_nsp, struct __ldata *ch) 114 { 115 nschar_t *np, *tnp, *pnp; 116 117 pnp = NULL; 118 np = src_nsp; 119 if (np) { 120 tnp = ch->nsp; 121 while (np) { 122 if (tnp) { 123 tnp->ch = np->ch; 124 pnp = tnp; 125 tnp = tnp->next; 126 } else { 127 tnp = (nschar_t *)malloc(sizeof(nschar_t)); 128 if (!tnp) 129 return ERR; 130 tnp->ch = np->ch; 131 pnp->next = tnp; 132 tnp->next = NULL; 133 pnp = tnp; 134 tnp = NULL; 135 } 136 np = np->next; 137 } 138 np = tnp; 139 if (np) { 140 pnp->next = NULL; 141 __cursesi_free_nsp(np); 142 } 143 } else { 144 if (ch->nsp) { 145 __cursesi_free_nsp(ch->nsp); 146 ch->nsp = NULL; 147 } 148 } 149 150 return OK; 151 } 152 153 /* 154 * Free the storage associated with a non-spacing character - traverse the 155 * linked list until all storage is done. 156 */ 157 void 158 __cursesi_free_nsp(nschar_t *inp) 159 { 160 nschar_t *tnp, *np; 161 162 np = inp; 163 if (np) { 164 while (np) { 165 tnp = np->next; 166 free(np); 167 np = tnp; 168 } 169 } 170 } 171 172 /* 173 * Traverse all the cells in the given window free'ing the non-spacing 174 * character storage. 175 */ 176 void 177 __cursesi_win_free_nsp(WINDOW *win) 178 { 179 int i, j; 180 __LDATA *sp; 181 182 for (i = 0; i < win->maxy; i++) { 183 for (sp = win->alines[i]->line, j = 0; j < win->maxx; 184 j++, sp++) { 185 __cursesi_free_nsp(sp->nsp); 186 } 187 } 188 } 189 190 #endif 191