diff options
Diffstat (limited to 'contrib/nvi/ip/ip_main.c')
| -rw-r--r-- | contrib/nvi/ip/ip_main.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/contrib/nvi/ip/ip_main.c b/contrib/nvi/ip/ip_main.c new file mode 100644 index 0000000..7ca9f55 --- /dev/null +++ b/contrib/nvi/ip/ip_main.c @@ -0,0 +1,165 @@ +/*- + * Copyright (c) 1996 + * Keith Bostic. All rights reserved. + * + * See the LICENSE file for redistribution information. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)ip_main.c 8.3 (Berkeley) 10/13/96"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/queue.h> + +#include <bitstring.h> +#include <ctype.h> +#include <errno.h> +#include <stdio.h> + +#include "../common/common.h" +#include "ip.h" + +static void ip_func_std __P((GS *)); +static IP_PRIVATE *ip_init __P((GS *, char *)); +static void perr __P((char *, char *)); + +/* + * main -- + * This is the main loop for the vi-as-library editor. + */ +int +ip_main(argc, argv, gp, ip_arg) + int argc; + char *argv[], *ip_arg; + GS *gp; +{ + EVENT ev; + IP_PRIVATE *ipp; + IP_BUF ipb; + int rval; + + /* Create and partially initialize the IP structure. */ + if ((ipp = ip_init(gp, ip_arg)) == NULL) + return (1); + + /* Add the terminal type to the global structure. */ + if ((OG_D_STR(gp, GO_TERM) = + OG_STR(gp, GO_TERM) = strdup("ip_curses")) == NULL) + perr(gp->progname, NULL); + + /* + * Figure out how big the screen is -- read events until we get + * the rows and columns. + */ + do { + if (ip_event(NULL, &ev, 0, 0)) + return (1); + } while (ev.e_event != E_EOF && ev.e_event != E_ERR && + ev.e_event != E_QUIT && ev.e_event != E_WRESIZE && + ev.e_event != E_SIGHUP && ev.e_event != E_SIGTERM); + if (ev.e_event != E_WRESIZE) + return (1); + + /* Run ex/vi. */ + rval = editor(gp, argc, argv); + + /* Clean up the screen. */ + (void)ip_quit(gp); + + /* Free the global and IP private areas. */ +#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY) + free(ipp); + free(gp); +#endif + + return (rval); +} + +/* + * ip_init -- + * Create and partially initialize the GS structure. + */ +static IP_PRIVATE * +ip_init(gp, ip_arg) + GS *gp; + char *ip_arg; +{ + IP_PRIVATE *ipp; + char *ep; + + /* Allocate the IP private structure. */ + CALLOC_NOMSG(NULL, ipp, IP_PRIVATE *, 1, sizeof(IP_PRIVATE)); + if (ipp == NULL) + perr(gp->progname, NULL); + gp->ip_private = ipp; + + /* + * Crack ip_arg -- it's of the form #.#, where the first number is the + * file descriptor from the screen, the second is the file descriptor + * to the screen. + */ + if (!isdigit(ip_arg[0])) + goto usage; + ipp->i_fd = strtol(ip_arg, &ep, 10); + if (ep[0] != '.' || !isdigit(ep[1])) + goto usage; + ipp->o_fd = strtol(++ep, &ep, 10); + if (ep[0] != '\0') { +usage: ip_usage(); + return (NULL); + } + + /* Initialize the list of ip functions. */ + ip_func_std(gp); + + return (ipp); +} + +/* + * ip_func_std -- + * Initialize the standard ip functions. + */ +static void +ip_func_std(gp) + GS *gp; +{ + gp->scr_addstr = ip_addstr; + gp->scr_attr = ip_attr; + gp->scr_baud = ip_baud; + gp->scr_bell = ip_bell; + gp->scr_busy = ip_busy; + gp->scr_clrtoeol = ip_clrtoeol; + gp->scr_cursor = ip_cursor; + gp->scr_deleteln = ip_deleteln; + gp->scr_event = ip_event; + gp->scr_ex_adjust = ip_ex_adjust; + gp->scr_fmap = ip_fmap; + gp->scr_insertln = ip_insertln; + gp->scr_keyval = ip_keyval; + gp->scr_move = ip_move; + gp->scr_msg = NULL; + gp->scr_optchange = ip_optchange; + gp->scr_refresh = ip_refresh; + gp->scr_rename = ip_rename; + gp->scr_screen = ip_screen; + gp->scr_suspend = ip_suspend; + gp->scr_usage = ip_usage; +} + +/* + * perr -- + * Print system error. + */ +static void +perr(name, msg) + char *name, *msg; +{ + (void)fprintf(stderr, "%s:", name); + if (msg != NULL) + (void)fprintf(stderr, "%s:", msg); + (void)fprintf(stderr, "%s\n", strerror(errno)); + exit(1); +} |
