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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/vi/build/../ex/ex_util.c	Lines:	0	74	0.0 %
Date:	2017-11-13	Branches:	0	62	0.0 %


/*	$OpenBSD: ex_util.c,v 1.9 2016/01/06 22:28:52 millert Exp $	*/

/*-
 * Copyright (c) 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 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/stat.h>

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

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

/*
 * ex_cinit --
 *	Create an EX command structure.
 *
 * PUBLIC: void ex_cinit(EXCMD *, int, int, recno_t, recno_t, int, ARGS **);
 */
void
ex_cinit(EXCMD *cmdp, int cmd_id, int naddr, recno_t lno1, recno_t lno2,
    int force, ARGS **ap)
{
	memset(cmdp, 0, sizeof(EXCMD));
	cmdp->cmd = &cmds[cmd_id];
	cmdp->addrcnt = naddr;
	cmdp->addr1.lno = lno1;
	cmdp->addr2.lno = lno2;
	cmdp->addr1.cno = cmdp->addr2.cno = 1;
	if (force)
		cmdp->iflags |= E_C_FORCE;
	cmdp->argc = 0;
	if ((cmdp->argv = ap) != NULL)
		cmdp->argv[0] = NULL;
}

/*
 * ex_cadd --
 *	Add an argument to an EX command structure.
 *
 * PUBLIC: void ex_cadd(EXCMD *, ARGS *, char *, size_t);
 */
void
ex_cadd(EXCMD *cmdp, ARGS *ap, char *arg, size_t len)
{
	cmdp->argv[cmdp->argc] = ap;
	ap->bp = arg;
	ap->len = len;
	cmdp->argv[++cmdp->argc] = NULL;
}

/*
 * ex_getline --
 *	Return a line from the file.
 *
 * PUBLIC: int ex_getline(SCR *, FILE *, size_t *);
 */
int
ex_getline(SCR *sp, FILE *fp, size_t *lenp)
{
	EX_PRIVATE *exp;
	size_t off;
	int ch;
	char *p;

	exp = EXP(sp);
	for (errno = 0, off = 0, p = exp->ibp;;) {
		if (off >= exp->ibp_len) {
			BINC_RET(sp, exp->ibp, exp->ibp_len, off + 1);
			p = exp->ibp + off;
		}
		if ((ch = getc(fp)) == EOF && !feof(fp)) {
			if (errno == EINTR) {
				errno = 0;
				clearerr(fp);
				continue;
			}
			return (1);
		}
		if (ch == EOF || ch == '\n') {
			if (ch == EOF && !off)
				return (1);
			*lenp = off;
			return (0);
		}
		*p++ = ch;
		++off;
	}
	/* NOTREACHED */
}

/*
 * ex_ncheck --
 *	Check for more files to edit.
 *
 * PUBLIC: int ex_ncheck(SCR *, int);
 */
int
ex_ncheck(SCR *sp, int force)
{
	char **ap;

	/*
	 * !!!
	 * Historic practice: quit! or two quit's done in succession
	 * (where ZZ counts as a quit) didn't check for other files.
	 */
	if (!force && sp->ccnt != sp->q_ccnt + 1 &&
	    sp->cargv != NULL && sp->cargv[1] != NULL) {
		sp->q_ccnt = sp->ccnt;

		for (ap = sp->cargv + 1; *ap != NULL; ++ap);
		msgq(sp, M_ERR,
		    "%d more files to edit", (ap - sp->cargv) - 1);

		return (1);
	}
	return (0);
}

/*
 * ex_init --
 *	Init the screen for ex.
 *
 * PUBLIC: int ex_init(SCR *);
 */
int
ex_init(SCR *sp)
{
	GS *gp;

	gp = sp->gp;

	if (gp->scr_screen(sp, SC_EX))
		return (1);
	(void)gp->scr_attr(sp, SA_ALTERNATE, 0);

	sp->rows = O_VAL(sp, O_LINES);
	sp->cols = O_VAL(sp, O_COLUMNS);

	F_CLR(sp, SC_VI);
	F_SET(sp, SC_EX | SC_SCR_EX);
	return (0);
}

/*
 * ex_emsg --
 *	Display a few common ex and vi error messages.
 *
 * PUBLIC: void ex_emsg(SCR *, char *, exm_t);
 */
void
ex_emsg(SCR *sp, char *p, exm_t which)
{
	switch (which) {
	case EXM_EMPTYBUF:
		msgq(sp, M_ERR, "Buffer %s is empty", p);
		break;
	case EXM_FILECOUNT:
		 msgq_str(sp, M_ERR, p,
		     "%s: expanded into too many file names");
		break;
	case EXM_NOCANON:
		msgq(sp, M_ERR,
		    "The %s command requires the ex terminal interface", p);
		break;
	case EXM_NOCANON_F:
		msgq(sp, M_ERR,
		    "That form of %s requires the ex terminal interface",
		    p);
		break;
	case EXM_NOFILEYET:
		if (p == NULL)
			msgq(sp, M_ERR,
			    "Command failed, no file read in yet.");
		else
			msgq(sp, M_ERR,
	"The %s command requires that a file have already been read in", p);
		break;
	case EXM_NOPREVBUF:
		msgq(sp, M_ERR, "No previous buffer to execute");
		break;
	case EXM_NOPREVRE:
		msgq(sp, M_ERR, "No previous regular expression");
		break;
	case EXM_NOSUSPEND:
		msgq(sp, M_ERR, "This screen may not be suspended");
		break;
	case EXM_SECURE:
		msgq(sp, M_ERR,
"The %s command is not supported when the secure edit option is set", p);
		break;
	case EXM_SECURE_F:
		msgq(sp, M_ERR,
"That form of %s is not supported when the secure edit option is set", p);
		break;
	case EXM_USAGE:
		msgq(sp, M_ERR, "Usage: %s", p);
		break;
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ex_util.c,v 1.9 2016/01/06 22:28:52 millert Exp $ */
2
3			/*-
4			* Copyright (c) 1993, 1994
5			* The Regents of the University of California. All rights reserved.
6			* Copyright (c) 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/stat.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			#include <unistd.h>
25
26			#include "../common/common.h"
27
28			/*
29			* ex_cinit --
30			* Create an EX command structure.
31			*
32			* PUBLIC: void ex_cinit(EXCMD , int, int, recno_t, recno_t, int, ARGS *);
33			*/
34			void
35			ex_cinit(EXCMD *cmdp, int cmd_id, int naddr, recno_t lno1, recno_t lno2,
36			int force, ARGS **ap)
37			{
38			memset(cmdp, 0, sizeof(EXCMD));
39			cmdp->cmd = &cmds[cmd_id];
40			cmdp->addrcnt = naddr;
41			cmdp->addr1.lno = lno1;
42			cmdp->addr2.lno = lno2;
43			cmdp->addr1.cno = cmdp->addr2.cno = 1;
44			if (force)
45			cmdp->iflags \|= E_C_FORCE;
46			cmdp->argc = 0;
47			if ((cmdp->argv = ap) != NULL)
48			cmdp->argv[0] = NULL;
49			}
50
51			/*
52			* ex_cadd --
53			* Add an argument to an EX command structure.
54			*
55			* PUBLIC: void ex_cadd(EXCMD , ARGS , char *, size_t);
56			*/
57			void
58			ex_cadd(EXCMD cmdp, ARGS ap, char *arg, size_t len)
59			{
60			cmdp->argv[cmdp->argc] = ap;
61			ap->bp = arg;
62			ap->len = len;
63			cmdp->argv[++cmdp->argc] = NULL;
64			}
65
66			/*
67			* ex_getline --
68			* Return a line from the file.
69			*
70			* PUBLIC: int ex_getline(SCR , FILE , size_t *);
71			*/
72			int
73			ex_getline(SCR sp, FILE fp, size_t *lenp)
74			{
75			EX_PRIVATE *exp;
76			size_t off;
77			int ch;
78			char *p;
79
80			exp = EXP(sp);
81			for (errno = 0, off = 0, p = exp->ibp;;) {
82			if (off >= exp->ibp_len) {
83			BINC_RET(sp, exp->ibp, exp->ibp_len, off + 1);
84			p = exp->ibp + off;
85			}
86			if ((ch = getc(fp)) == EOF && !feof(fp)) {
87			if (errno == EINTR) {
88			errno = 0;
89			clearerr(fp);
90			continue;
91			}
92			return (1);
93			}
94			if (ch == EOF \|\| ch == '\n') {
95			if (ch == EOF && !off)
96			return (1);
97			*lenp = off;
98			return (0);
99			}
100			*p++ = ch;
101			++off;
102			}
103			/* NOTREACHED */
104			}
105
106			/*
107			* ex_ncheck --
108			* Check for more files to edit.
109			*
110			* PUBLIC: int ex_ncheck(SCR *, int);
111			*/
112			int
113			ex_ncheck(SCR *sp, int force)
114			{
115			char **ap;
116
117			/*
118			* !!!
119			* Historic practice: quit! or two quit's done in succession
120			* (where ZZ counts as a quit) didn't check for other files.
121			*/
122			if (!force && sp->ccnt != sp->q_ccnt + 1 &&
123			sp->cargv != NULL && sp->cargv[1] != NULL) {
124			sp->q_ccnt = sp->ccnt;
125
126			for (ap = sp->cargv + 1; *ap != NULL; ++ap);
127			msgq(sp, M_ERR,
128			"%d more files to edit", (ap - sp->cargv) - 1);
129
130			return (1);
131			}
132			return (0);
133			}
134
135			/*
136			* ex_init --
137			* Init the screen for ex.
138			*
139			* PUBLIC: int ex_init(SCR *);
140			*/
141			int
142			ex_init(SCR *sp)
143			{
144			GS *gp;
145
146			gp = sp->gp;
147
148			if (gp->scr_screen(sp, SC_EX))
149			return (1);
150			(void)gp->scr_attr(sp, SA_ALTERNATE, 0);
151
152			sp->rows = O_VAL(sp, O_LINES);
153			sp->cols = O_VAL(sp, O_COLUMNS);
154
155			F_CLR(sp, SC_VI);
156			F_SET(sp, SC_EX \| SC_SCR_EX);
157			return (0);
158			}
159
160			/*
161			* ex_emsg --
162			* Display a few common ex and vi error messages.
163			*
164			* PUBLIC: void ex_emsg(SCR , char , exm_t);
165			*/
166			void
167			ex_emsg(SCR sp, char p, exm_t which)
168			{
169			switch (which) {
170			case EXM_EMPTYBUF:
171			msgq(sp, M_ERR, "Buffer %s is empty", p);
172			break;
173			case EXM_FILECOUNT:
174			msgq_str(sp, M_ERR, p,
175			"%s: expanded into too many file names");
176			break;
177			case EXM_NOCANON:
178			msgq(sp, M_ERR,
179			"The %s command requires the ex terminal interface", p);
180			break;
181			case EXM_NOCANON_F:
182			msgq(sp, M_ERR,
183			"That form of %s requires the ex terminal interface",
184			p);
185			break;
186			case EXM_NOFILEYET:
187			if (p == NULL)
188			msgq(sp, M_ERR,
189			"Command failed, no file read in yet.");
190			else
191			msgq(sp, M_ERR,
192			"The %s command requires that a file have already been read in", p);
193			break;
194			case EXM_NOPREVBUF:
195			msgq(sp, M_ERR, "No previous buffer to execute");
196			break;
197			case EXM_NOPREVRE:
198			msgq(sp, M_ERR, "No previous regular expression");
199			break;
200			case EXM_NOSUSPEND:
201			msgq(sp, M_ERR, "This screen may not be suspended");
202			break;
203			case EXM_SECURE:
204			msgq(sp, M_ERR,
205			"The %s command is not supported when the secure edit option is set", p);
206			break;
207			case EXM_SECURE_F:
208			msgq(sp, M_ERR,
209			"That form of %s is not supported when the secure edit option is set", p);
210			break;
211			case EXM_USAGE:
212			msgq(sp, M_ERR, "Usage: %s", p);
213			break;
214			}
215			}