b8ba871bd9
files, curses, db, regex etc that we already have). The other glue will follow shortly. Obtained from: Keith Bostic <bostic@bostic.com>
166 lines
3.4 KiB
C
166 lines
3.4 KiB
C
/*-
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* Copyright (c) 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)ip_main.c 8.3 (Berkeley) 10/13/96";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <bitstring.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include "../common/common.h"
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#include "ip.h"
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static void ip_func_std __P((GS *));
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static IP_PRIVATE *ip_init __P((GS *, char *));
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static void perr __P((char *, char *));
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/*
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* main --
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* This is the main loop for the vi-as-library editor.
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*/
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int
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ip_main(argc, argv, gp, ip_arg)
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int argc;
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char *argv[], *ip_arg;
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GS *gp;
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{
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EVENT ev;
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IP_PRIVATE *ipp;
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IP_BUF ipb;
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int rval;
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/* Create and partially initialize the IP structure. */
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if ((ipp = ip_init(gp, ip_arg)) == NULL)
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return (1);
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/* Add the terminal type to the global structure. */
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if ((OG_D_STR(gp, GO_TERM) =
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OG_STR(gp, GO_TERM) = strdup("ip_curses")) == NULL)
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perr(gp->progname, NULL);
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/*
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* Figure out how big the screen is -- read events until we get
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* the rows and columns.
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*/
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do {
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if (ip_event(NULL, &ev, 0, 0))
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return (1);
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} while (ev.e_event != E_EOF && ev.e_event != E_ERR &&
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ev.e_event != E_QUIT && ev.e_event != E_WRESIZE &&
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ev.e_event != E_SIGHUP && ev.e_event != E_SIGTERM);
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if (ev.e_event != E_WRESIZE)
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return (1);
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/* Run ex/vi. */
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rval = editor(gp, argc, argv);
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/* Clean up the screen. */
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(void)ip_quit(gp);
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/* Free the global and IP private areas. */
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#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
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free(ipp);
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free(gp);
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#endif
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return (rval);
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}
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/*
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* ip_init --
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* Create and partially initialize the GS structure.
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*/
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static IP_PRIVATE *
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ip_init(gp, ip_arg)
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GS *gp;
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char *ip_arg;
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{
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IP_PRIVATE *ipp;
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char *ep;
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/* Allocate the IP private structure. */
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CALLOC_NOMSG(NULL, ipp, IP_PRIVATE *, 1, sizeof(IP_PRIVATE));
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if (ipp == NULL)
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perr(gp->progname, NULL);
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gp->ip_private = ipp;
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/*
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* Crack ip_arg -- it's of the form #.#, where the first number is the
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* file descriptor from the screen, the second is the file descriptor
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* to the screen.
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*/
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if (!isdigit(ip_arg[0]))
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goto usage;
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ipp->i_fd = strtol(ip_arg, &ep, 10);
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if (ep[0] != '.' || !isdigit(ep[1]))
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goto usage;
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ipp->o_fd = strtol(++ep, &ep, 10);
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if (ep[0] != '\0') {
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usage: ip_usage();
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return (NULL);
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}
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/* Initialize the list of ip functions. */
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ip_func_std(gp);
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return (ipp);
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}
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/*
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* ip_func_std --
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* Initialize the standard ip functions.
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*/
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static void
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ip_func_std(gp)
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GS *gp;
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{
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gp->scr_addstr = ip_addstr;
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gp->scr_attr = ip_attr;
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gp->scr_baud = ip_baud;
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gp->scr_bell = ip_bell;
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gp->scr_busy = ip_busy;
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gp->scr_clrtoeol = ip_clrtoeol;
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gp->scr_cursor = ip_cursor;
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gp->scr_deleteln = ip_deleteln;
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gp->scr_event = ip_event;
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gp->scr_ex_adjust = ip_ex_adjust;
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gp->scr_fmap = ip_fmap;
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gp->scr_insertln = ip_insertln;
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gp->scr_keyval = ip_keyval;
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gp->scr_move = ip_move;
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gp->scr_msg = NULL;
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gp->scr_optchange = ip_optchange;
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gp->scr_refresh = ip_refresh;
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gp->scr_rename = ip_rename;
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gp->scr_screen = ip_screen;
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gp->scr_suspend = ip_suspend;
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gp->scr_usage = ip_usage;
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}
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/*
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* perr --
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* Print system error.
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*/
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static void
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perr(name, msg)
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char *name, *msg;
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{
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(void)fprintf(stderr, "%s:", name);
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if (msg != NULL)
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(void)fprintf(stderr, "%s:", msg);
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(void)fprintf(stderr, "%s\n", strerror(errno));
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exit(1);
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}
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