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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/vi/build/../ex/ex_args.c	Lines:	0	126	0.0 %
Date:	2017-11-13	Branches:	0	96	0.0 %


/*	$OpenBSD: ex_args.c,v 1.12 2016/01/06 22:28:52 millert Exp $	*/

/*-
 * Copyright (c) 1991, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1991, 1993, 1994, 1995, 1996
 *	Keith Bostic.  All rights reserved.
 *
 * See the LICENSE file for redistribution information.
 */

#include "config.h"

#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>

#include <bitstring.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "../common/common.h"
#include "../vi/vi.h"

static int ex_N_next(SCR *, EXCMD *);

/*
 * ex_next -- :next [+cmd] [files]
 *	Edit the next file, optionally setting the list of files.
 *
 * !!!
 * The :next command behaved differently from the :rewind command in
 * historic vi.  See nvi/docs/autowrite for details, but the basic
 * idea was that it ignored the force flag if the autowrite flag was
 * set.  This implementation handles them all identically.
 *
 * PUBLIC: int ex_next(SCR *, EXCMD *);
 */
int
ex_next(SCR *sp, EXCMD *cmdp)
{
	ARGS **argv;
	FREF *frp;
	int noargs;
	char **ap;

	/* Check for file to move to. */
	if (cmdp->argc == 0 && (sp->cargv == NULL || sp->cargv[1] == NULL)) {
		msgq(sp, M_ERR, "No more files to edit");
		return (1);
	}

	if (F_ISSET(cmdp, E_NEWSCREEN)) {
		/* By default, edit the next file in the old argument list. */
		if (cmdp->argc == 0) {
			if (argv_exp0(sp,
			    cmdp, sp->cargv[1], strlen(sp->cargv[1])))
				return (1);
			return (ex_edit(sp, cmdp));
		}
		return (ex_N_next(sp, cmdp));
	}

	/* Check modification. */
	if (file_m1(sp,
	    FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
		return (1);

	/* Any arguments are a replacement file list. */
	if (cmdp->argc) {
		/* Free the current list. */
		if (!F_ISSET(sp, SC_ARGNOFREE) && sp->argv != NULL) {
			for (ap = sp->argv; *ap != NULL; ++ap)
				free(*ap);
			free(sp->argv);
		}
		F_CLR(sp, SC_ARGNOFREE | SC_ARGRECOVER);
		sp->cargv = NULL;

		/* Create a new list. */
		CALLOC_RET(sp,
		    sp->argv, cmdp->argc + 1, sizeof(char *));
		for (ap = sp->argv,
		    argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
			if ((*ap =
			    v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL)
				return (1);
		*ap = NULL;

		/* Switch to the first file. */
		sp->cargv = sp->argv;
		if ((frp = file_add(sp, *sp->cargv)) == NULL)
			return (1);
		noargs = 0;

		/* Display a file count with the welcome message. */
		F_SET(sp, SC_STATUS_CNT);
	} else {
		if ((frp = file_add(sp, sp->cargv[1])) == NULL)
			return (1);
		if (F_ISSET(sp, SC_ARGRECOVER))
			F_SET(frp, FR_RECOVER);
		noargs = 1;
	}

	if (file_init(sp, frp, NULL, FS_SETALT |
	    (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
		return (1);
	if (noargs)
		++sp->cargv;

	F_SET(sp, SC_FSWITCH);
	return (0);
}

/*
 * ex_N_next --
 *	New screen version of ex_next.
 */
static int
ex_N_next(SCR *sp, EXCMD *cmdp)
{
	SCR *new;
	FREF *frp;

	/* Get a new screen. */
	if (screen_init(sp->gp, sp, &new))
		return (1);
	if (vs_split(sp, new, 0)) {
		(void)screen_end(new);
		return (1);
	}

	/* Get a backing file. */
	if ((frp = file_add(new, cmdp->argv[0]->bp)) == NULL ||
	    file_init(new, frp, NULL,
	    (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) {
		(void)vs_discard(new, NULL);
		(void)screen_end(new);
		return (1);
	}

	/* The arguments are a replacement file list. */
	new->cargv = new->argv = ex_buildargv(sp, cmdp, NULL);

	/* Display a file count with the welcome message. */
	F_SET(new, SC_STATUS_CNT);

	/* Set up the switch. */
	sp->nextdisp = new;
	F_SET(sp, SC_SSWITCH);

	return (0);
}

/*
 * ex_prev -- :prev
 *	Edit the previous file.
 *
 * PUBLIC: int ex_prev(SCR *, EXCMD *);
 */
int
ex_prev(SCR *sp, EXCMD *cmdp)
{
	FREF *frp;

	if (sp->cargv == sp->argv) {
		msgq(sp, M_ERR, "No previous files to edit");
		return (1);
	}

	if (F_ISSET(cmdp, E_NEWSCREEN)) {
		if (argv_exp0(sp, cmdp, sp->cargv[-1], strlen(sp->cargv[-1])))
			return (1);
		return (ex_edit(sp, cmdp));
	}

	if (file_m1(sp,
	    FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
		return (1);

	if ((frp = file_add(sp, sp->cargv[-1])) == NULL)
		return (1);

	if (file_init(sp, frp, NULL, FS_SETALT |
	    (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
		return (1);
	--sp->cargv;

	F_SET(sp, SC_FSWITCH);
	return (0);
}

/*
 * ex_rew -- :rew
 *	Re-edit the list of files.
 *
 * !!!
 * Historic practice was that all files would start editing at the beginning
 * of the file.  We don't get this right because we may have multiple screens
 * and we can't clear the FR_CURSORSET bit for a single screen.  I don't see
 * anyone noticing, but if they do, we'll have to put information into the SCR
 * structure so we can keep track of it.
 *
 * PUBLIC: int ex_rew(SCR *, EXCMD *);
 */
int
ex_rew(SCR *sp, EXCMD *cmdp)
{
	FREF *frp;

	/*
	 * !!!
	 * Historic practice -- you can rewind to the current file.
	 */
	if (sp->argv == NULL) {
		msgq(sp, M_ERR, "No previous files to rewind");
		return (1);
	}

	if (file_m1(sp,
	    FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL | FS_POSSIBLE))
		return (1);

	/* Switch to the first one. */
	sp->cargv = sp->argv;
	if ((frp = file_add(sp, *sp->cargv)) == NULL)
		return (1);
	if (file_init(sp, frp, NULL, FS_SETALT |
	    (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
		return (1);

	/* Switch and display a file count with the welcome message. */
	F_SET(sp, SC_FSWITCH | SC_STATUS_CNT);

	return (0);
}

/*
 * ex_args -- :args
 *	Display the list of files.
 *
 * PUBLIC: int ex_args(SCR *, EXCMD *);
 */
int
ex_args(SCR *sp, EXCMD *cmdp)
{
	int cnt, col, len, sep;
	char **ap;

	if (sp->argv == NULL) {
		(void)msgq(sp, M_ERR, "No file list to display");
		return (0);
	}

	col = len = sep = 0;
	for (cnt = 1, ap = sp->argv; *ap != NULL; ++ap) {
		col += len = strlen(*ap) + sep + (ap == sp->cargv ? 2 : 0);
		if (col >= sp->cols - 1) {
			col = len;
			sep = 0;
			(void)ex_puts(sp, "\n");
		} else if (cnt != 1) {
			sep = 1;
			(void)ex_puts(sp, " ");
		}
		++cnt;

		(void)ex_printf(sp, "%s%s%s", ap == sp->cargv ? "[" : "",
		    *ap, ap == sp->cargv ? "]" : "");
		if (INTERRUPTED(sp))
			break;
	}
	(void)ex_puts(sp, "\n");
	return (0);
}

/*
 * ex_buildargv --
 *	Build a new file argument list.
 *
 * PUBLIC: char **ex_buildargv(SCR *, EXCMD *, char *);
 */
char **
ex_buildargv(SCR *sp, EXCMD *cmdp, char *name)
{
	ARGS **argv;
	int argc;
	char **ap, **s_argv;

	argc = cmdp == NULL ? 1 : cmdp->argc;
	CALLOC(sp, s_argv, argc + 1, sizeof(char *));
	if ((ap = s_argv) == NULL)
		return (NULL);

	if (cmdp == NULL) {
		if ((*ap = v_strdup(sp, name, strlen(name))) == NULL) {
			free(s_argv);
			return (NULL);
		}
		++ap;
	} else
		for (argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
			if ((*ap =
			    v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL) {
				while (--ap >= s_argv)
					free(*ap);
				free(s_argv);
				return (NULL);
			}
	*ap = NULL;
	return (s_argv);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ex_args.c,v 1.12 2016/01/06 22:28:52 millert Exp $ */
2
3			/*-
4			* Copyright (c) 1991, 1993, 1994
5			* The Regents of the University of California. All rights reserved.
6			* Copyright (c) 1991, 1993, 1994, 1995, 1996
7			* Keith Bostic. All rights reserved.
8			*
9			* See the LICENSE file for redistribution information.
10			*/
11
12			#include "config.h"
13
14			#include <sys/types.h>
15			#include <sys/queue.h>
16			#include <sys/time.h>
17
18			#include <bitstring.h>
19			#include <errno.h>
20			#include <limits.h>
21			#include <stdio.h>
22			#include <stdlib.h>
23			#include <string.h>
24
25			#include "../common/common.h"
26			#include "../vi/vi.h"
27
28			static int ex_N_next(SCR , EXCMD );
29
30			/*
31			* ex_next -- :next [+cmd] [files]
32			* Edit the next file, optionally setting the list of files.
33			*
34			* !!!
35			* The :next command behaved differently from the :rewind command in
36			* historic vi. See nvi/docs/autowrite for details, but the basic
37			* idea was that it ignored the force flag if the autowrite flag was
38			* set. This implementation handles them all identically.
39			*
40			* PUBLIC: int ex_next(SCR , EXCMD );
41			*/
42			int
43			ex_next(SCR sp, EXCMD cmdp)
44			{
45			ARGS **argv;
46			FREF *frp;
47			int noargs;
48			char **ap;
49
50			/* Check for file to move to. */
51			if (cmdp->argc == 0 && (sp->cargv == NULL \|\| sp->cargv[1] == NULL)) {
52			msgq(sp, M_ERR, "No more files to edit");
53			return (1);
54			}
55
56			if (F_ISSET(cmdp, E_NEWSCREEN)) {
57			/* By default, edit the next file in the old argument list. */
58			if (cmdp->argc == 0) {
59			if (argv_exp0(sp,
60			cmdp, sp->cargv[1], strlen(sp->cargv[1])))
61			return (1);
62			return (ex_edit(sp, cmdp));
63			}
64			return (ex_N_next(sp, cmdp));
65			}
66
67			/* Check modification. */
68			if (file_m1(sp,
69			FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL \| FS_POSSIBLE))
70			return (1);
71
72			/* Any arguments are a replacement file list. */
73			if (cmdp->argc) {
74			/* Free the current list. */
75			if (!F_ISSET(sp, SC_ARGNOFREE) && sp->argv != NULL) {
76			for (ap = sp->argv; *ap != NULL; ++ap)
77			free(*ap);
78			free(sp->argv);
79			}
80			F_CLR(sp, SC_ARGNOFREE \| SC_ARGRECOVER);
81			sp->cargv = NULL;
82
83			/* Create a new list. */
84			CALLOC_RET(sp,
85			sp->argv, cmdp->argc + 1, sizeof(char *));
86			for (ap = sp->argv,
87			argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
88			if ((*ap =
89			v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL)
90			return (1);
91			*ap = NULL;
92
93			/* Switch to the first file. */
94			sp->cargv = sp->argv;
95			if ((frp = file_add(sp, *sp->cargv)) == NULL)
96			return (1);
97			noargs = 0;
98
99			/* Display a file count with the welcome message. */
100			F_SET(sp, SC_STATUS_CNT);
101			} else {
102			if ((frp = file_add(sp, sp->cargv[1])) == NULL)
103			return (1);
104			if (F_ISSET(sp, SC_ARGRECOVER))
105			F_SET(frp, FR_RECOVER);
106			noargs = 1;
107			}
108
109			if (file_init(sp, frp, NULL, FS_SETALT \|
110			(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
111			return (1);
112			if (noargs)
113			++sp->cargv;
114
115			F_SET(sp, SC_FSWITCH);
116			return (0);
117			}
118
119			/*
120			* ex_N_next --
121			* New screen version of ex_next.
122			*/
123			static int
124			ex_N_next(SCR sp, EXCMD cmdp)
125			{
126			SCR *new;
127			FREF *frp;
128
129			/* Get a new screen. */
130			if (screen_init(sp->gp, sp, &new))
131			return (1);
132			if (vs_split(sp, new, 0)) {
133			(void)screen_end(new);
134			return (1);
135			}
136
137			/* Get a backing file. */
138			if ((frp = file_add(new, cmdp->argv[0]->bp)) == NULL \|\|
139			file_init(new, frp, NULL,
140			(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) {
141			(void)vs_discard(new, NULL);
142			(void)screen_end(new);
143			return (1);
144			}
145
146			/* The arguments are a replacement file list. */
147			new->cargv = new->argv = ex_buildargv(sp, cmdp, NULL);
148
149			/* Display a file count with the welcome message. */
150			F_SET(new, SC_STATUS_CNT);
151
152			/* Set up the switch. */
153			sp->nextdisp = new;
154			F_SET(sp, SC_SSWITCH);
155
156			return (0);
157			}
158
159			/*
160			* ex_prev -- :prev
161			* Edit the previous file.
162			*
163			* PUBLIC: int ex_prev(SCR , EXCMD );
164			*/
165			int
166			ex_prev(SCR sp, EXCMD cmdp)
167			{
168			FREF *frp;
169
170			if (sp->cargv == sp->argv) {
171			msgq(sp, M_ERR, "No previous files to edit");
172			return (1);
173			}
174
175			if (F_ISSET(cmdp, E_NEWSCREEN)) {
176			if (argv_exp0(sp, cmdp, sp->cargv[-1], strlen(sp->cargv[-1])))
177			return (1);
178			return (ex_edit(sp, cmdp));
179			}
180
181			if (file_m1(sp,
182			FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL \| FS_POSSIBLE))
183			return (1);
184
185			if ((frp = file_add(sp, sp->cargv[-1])) == NULL)
186			return (1);
187
188			if (file_init(sp, frp, NULL, FS_SETALT \|
189			(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
190			return (1);
191			--sp->cargv;
192
193			F_SET(sp, SC_FSWITCH);
194			return (0);
195			}
196
197			/*
198			* ex_rew -- :rew
199			* Re-edit the list of files.
200			*
201			* !!!
202			* Historic practice was that all files would start editing at the beginning
203			* of the file. We don't get this right because we may have multiple screens
204			* and we can't clear the FR_CURSORSET bit for a single screen. I don't see
205			* anyone noticing, but if they do, we'll have to put information into the SCR
206			* structure so we can keep track of it.
207			*
208			* PUBLIC: int ex_rew(SCR , EXCMD );
209			*/
210			int
211			ex_rew(SCR sp, EXCMD cmdp)
212			{
213			FREF *frp;
214
215			/*
216			* !!!
217			* Historic practice -- you can rewind to the current file.
218			*/
219			if (sp->argv == NULL) {
220			msgq(sp, M_ERR, "No previous files to rewind");
221			return (1);
222			}
223
224			if (file_m1(sp,
225			FL_ISSET(cmdp->iflags, E_C_FORCE), FS_ALL \| FS_POSSIBLE))
226			return (1);
227
228			/* Switch to the first one. */
229			sp->cargv = sp->argv;
230			if ((frp = file_add(sp, *sp->cargv)) == NULL)
231			return (1);
232			if (file_init(sp, frp, NULL, FS_SETALT \|
233			(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
234			return (1);
235
236			/* Switch and display a file count with the welcome message. */
237			F_SET(sp, SC_FSWITCH \| SC_STATUS_CNT);
238
239			return (0);
240			}
241
242			/*
243			* ex_args -- :args
244			* Display the list of files.
245			*
246			* PUBLIC: int ex_args(SCR , EXCMD );
247			*/
248			int
249			ex_args(SCR sp, EXCMD cmdp)
250			{
251			int cnt, col, len, sep;
252			char **ap;
253
254			if (sp->argv == NULL) {
255			(void)msgq(sp, M_ERR, "No file list to display");
256			return (0);
257			}
258
259			col = len = sep = 0;
260			for (cnt = 1, ap = sp->argv; *ap != NULL; ++ap) {
261			col += len = strlen(*ap) + sep + (ap == sp->cargv ? 2 : 0);
262			if (col >= sp->cols - 1) {
263			col = len;
264			sep = 0;
265			(void)ex_puts(sp, "\n");
266			} else if (cnt != 1) {
267			sep = 1;
268			(void)ex_puts(sp, " ");
269			}
270			++cnt;
271
272			(void)ex_printf(sp, "%s%s%s", ap == sp->cargv ? "[" : "",
273			*ap, ap == sp->cargv ? "]" : "");
274			if (INTERRUPTED(sp))
275			break;
276			}
277			(void)ex_puts(sp, "\n");
278			return (0);
279			}
280
281			/*
282			* ex_buildargv --
283			* Build a new file argument list.
284			*
285			* PUBLIC: char *ex_buildargv(SCR , EXCMD , char );
286			*/
287			char **
288			ex_buildargv(SCR sp, EXCMD cmdp, char *name)
289			{
290			ARGS **argv;
291			int argc;
292			char ap, s_argv;
293
294			argc = cmdp == NULL ? 1 : cmdp->argc;
295			CALLOC(sp, s_argv, argc + 1, sizeof(char *));
296			if ((ap = s_argv) == NULL)
297			return (NULL);
298
299			if (cmdp == NULL) {
300			if ((*ap = v_strdup(sp, name, strlen(name))) == NULL) {
301			free(s_argv);
302			return (NULL);
303			}
304			++ap;
305			} else
306			for (argv = cmdp->argv; argv[0]->len != 0; ++ap, ++argv)
307			if ((*ap =
308			v_strdup(sp, argv[0]->bp, argv[0]->len)) == NULL) {
309			while (--ap >= s_argv)
310			free(*ap);
311			free(s_argv);
312			return (NULL);
313			}
314			*ap = NULL;
315			return (s_argv);
316			}