298 lines
7.9 KiB
C
298 lines
7.9 KiB
C
/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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/* from: static char sccsid[] = "@(#)screen.c 8.51 (Berkeley) 1/11/94"; */
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static char *rcsid = "$Id: screen.c,v 1.2 1994/01/24 06:39:10 cgd Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "vi.h"
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#include "vcmd.h"
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#include "excmd.h"
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#include "tag.h"
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/*
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* screen_init --
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* Do the default initialization of an SCR structure.
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*/
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int
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screen_init(orig, spp, flags)
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SCR *orig, **spp;
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u_int flags;
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{
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SCR *sp;
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size_t len;
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*spp = NULL;
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CALLOC_RET(orig, sp, SCR *, 1, sizeof(SCR));
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*spp = sp;
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/* INITIALIZED AT SCREEN CREATE. */
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sp->gp = __global_list; /* All ref the GS structure. */
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LIST_INIT(&sp->msgq);
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CIRCLEQ_INIT(&sp->frefq);
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sp->ccnt = 2; /* Anything > 1 */
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FD_ZERO(&sp->rdfd);
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CIRCLEQ_INIT(&sp->tiq);
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/* PARTIALLY OR COMPLETELY COPIED FROM PREVIOUS SCREEN. */
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if (orig == NULL) {
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sp->searchdir = NOTSET;
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sp->csearchdir = CNOTSET;
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switch (flags & S_SCREENS) {
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case S_EX:
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if (sex_screen_init(sp))
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return (1);
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break;
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case S_VI_CURSES:
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if (svi_screen_init(sp))
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return (1);
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break;
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case S_VI_XAW:
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if (xaw_screen_init(sp))
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return (1);
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break;
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default:
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abort();
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}
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sp->flags = flags;
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} else {
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if (orig->alt_name != NULL &&
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(sp->alt_name = strdup(orig->alt_name)) == NULL)
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goto mem;
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/* Retain all searching/substitution information. */
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if (F_ISSET(orig, S_SRE_SET)) {
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F_SET(sp, S_SRE_SET);
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sp->sre = orig->sre;
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}
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if (F_ISSET(orig, S_SUBRE_SET)) {
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F_SET(sp, S_SUBRE_SET);
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sp->subre = orig->subre;
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}
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sp->searchdir = orig->searchdir == NOTSET ? NOTSET : FORWARD;
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sp->csearchdir = CNOTSET;
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sp->lastckey = orig->lastckey;
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if (orig->matchsize) {
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len = orig->matchsize * sizeof(regmatch_t);
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MALLOC(sp, sp->match, regmatch_t *, len);
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if (sp->match == NULL)
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goto mem;
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sp->matchsize = orig->matchsize;
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memmove(sp->match, orig->match, len);
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}
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if (orig->repl_len) {
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MALLOC(sp, sp->repl, char *, orig->repl_len);
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if (sp->repl == NULL)
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goto mem;
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sp->repl_len = orig->repl_len;
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memmove(sp->repl, orig->repl, orig->repl_len);
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}
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if (orig->newl_len) {
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len = orig->newl_len * sizeof(size_t);
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MALLOC(sp, sp->newl, size_t *, len);
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if (sp->newl == NULL)
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goto mem;
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sp->newl_len = orig->newl_len;
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sp->newl_cnt = orig->newl_cnt;
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memmove(sp->newl, orig->newl, len);
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}
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sp->saved_vi_mode = orig->saved_vi_mode;
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if (opts_copy(orig, sp)) {
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mem: msgq(orig, M_SYSERR, "new screen attributes");
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(void)screen_end(sp);
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return (1);
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}
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sp->s_bell = orig->s_bell;
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sp->s_bg = orig->s_bg;
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sp->s_busy = orig->s_busy;
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sp->s_change = orig->s_change;
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sp->s_chposition = orig->s_chposition;
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sp->s_clear = orig->s_clear;
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sp->s_column = orig->s_column;
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sp->s_confirm = orig->s_confirm;
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sp->s_down = orig->s_down;
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sp->s_edit = orig->s_edit;
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sp->s_end = orig->s_end;
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sp->s_ex_cmd = orig->s_ex_cmd;
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sp->s_ex_run = orig->s_ex_run;
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sp->s_ex_write = orig->s_ex_write;
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sp->s_fg = orig->s_fg;
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sp->s_fill = orig->s_fill;
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sp->s_get = orig->s_get;
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sp->s_key_read = orig->s_key_read;
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sp->s_optchange = orig->s_optchange;
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sp->s_position = orig->s_position;
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sp->s_rabs = orig->s_rabs;
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sp->s_refresh = orig->s_refresh;
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sp->s_relative = orig->s_relative;
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sp->s_rrel = orig->s_rrel;
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sp->s_split = orig->s_split;
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sp->s_suspend = orig->s_suspend;
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sp->s_up = orig->s_up;
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F_SET(sp, F_ISSET(orig, S_SCREENS));
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}
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if (xaw_screen_copy(orig, sp)) /* Init S_VI_XAW screen. */
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return (1);
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if (svi_screen_copy(orig, sp)) /* Init S_VI_CURSES screen. */
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return (1);
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if (sex_screen_copy(orig, sp)) /* Init S_EX screen. */
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return (1);
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if (v_screen_copy(orig, sp)) /* Init vi. */
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return (1);
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if (ex_screen_copy(orig, sp)) /* Init ex. */
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return (1);
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*spp = sp;
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return (0);
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}
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/*
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* screen_end --
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* Release a screen.
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*/
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int
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screen_end(sp)
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SCR *sp;
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{
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int rval;
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rval = 0;
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if (xaw_screen_end(sp)) /* End S_VI_XAW screen. */
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rval = 1;
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if (svi_screen_end(sp)) /* End S_VI_CURSES screen. */
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rval = 1;
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if (sex_screen_end(sp)) /* End S_EX screen. */
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rval = 1;
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if (v_screen_end(sp)) /* End vi. */
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rval = 1;
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if (ex_screen_end(sp)) /* End ex. */
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rval = 1;
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/* Free FREF's. */
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{ FREF *frp;
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while ((frp = sp->frefq.cqh_first) != (FREF *)&sp->frefq) {
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CIRCLEQ_REMOVE(&sp->frefq, frp, q);
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if (frp->cname != NULL)
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free(frp->cname);
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if (frp->name != NULL)
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free(frp->name);
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if (frp->tname != NULL)
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free(frp->tname);
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FREE(frp, sizeof(FREF));
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}
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}
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/* Free any text input. */
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text_lfree(&sp->tiq);
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/* Free any script information. */
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if (F_ISSET(sp, S_SCRIPT))
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sscr_end(sp);
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/* Free alternate file name. */
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if (sp->alt_name != NULL)
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FREE(sp->alt_name, strlen(sp->alt_name) + 1);
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/* Free up search information. */
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if (sp->match != NULL)
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FREE(sp->match, sizeof(regmatch_t));
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if (sp->repl != NULL)
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FREE(sp->repl, sp->repl_len);
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if (sp->newl != NULL)
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FREE(sp->newl, sp->newl_len);
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/* Free all the options */
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opts_free(sp);
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/*
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* Free the message chain last, so previous failures have a place
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* to put messages. Copy messages to (in order) a related screen,
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* any screen, the global area.
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*/
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{ SCR *c_sp; MSG *mp, *next;
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if ((c_sp = sp->q.cqe_prev) != (void *)&sp->gp->dq) {
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if (F_ISSET(sp, S_BELLSCHED))
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F_SET(c_sp, S_BELLSCHED);
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} else if ((c_sp = sp->q.cqe_next) != (void *)&sp->gp->dq) {
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if (F_ISSET(sp, S_BELLSCHED))
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F_SET(c_sp, S_BELLSCHED);
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} else if ((c_sp =
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sp->gp->hq.cqh_first) != (void *)&sp->gp->hq) {
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if (F_ISSET(sp, S_BELLSCHED))
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F_SET(c_sp, S_BELLSCHED);
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} else {
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c_sp = NULL;
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if (F_ISSET(sp, S_BELLSCHED))
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F_SET(sp->gp, G_BELLSCHED);
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}
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for (mp = sp->msgq.lh_first; mp != NULL; mp = next) {
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if (!F_ISSET(mp, M_EMPTY))
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msg_app(sp->gp, c_sp,
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mp->flags & M_INV_VIDEO, mp->mbuf, mp->len);
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next = mp->q.le_next;
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if (mp->mbuf != NULL)
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FREE(mp->mbuf, mp->blen);
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FREE(mp, sizeof(MSG));
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}
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}
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/* Remove the screen from the displayed queue. */
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CIRCLEQ_REMOVE(&sp->gp->dq, sp, q);
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/* Free the screen itself. */
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FREE(sp, sizeof(SCR));
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return (rval);
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}
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