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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/vi/build/../ex/ex_print.c	Lines:	0	118	0.0 %
Date:	2017-11-13	Branches:	0	134	0.0 %


/*	$OpenBSD: ex_print.c,v 1.13 2016/05/27 09:18:12 martijn Exp $	*/

/*-
 * Copyright (c) 1992, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1992, 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 <bitstring.h>
#include <ctype.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>

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

static int ex_prchars(SCR *, const char *, size_t *, size_t, u_int, int);

/*
 * ex_list -- :[line [,line]] l[ist] [count] [flags]
 *
 *	Display the addressed lines such that the output is unambiguous.
 *
 * PUBLIC: int ex_list(SCR *, EXCMD *);
 */
int
ex_list(SCR *sp, EXCMD *cmdp)
{
	if (ex_print(sp, cmdp,
	    &cmdp->addr1, &cmdp->addr2, cmdp->iflags | E_C_LIST))
		return (1);
	sp->lno = cmdp->addr2.lno;
	sp->cno = cmdp->addr2.cno;
	return (0);
}

/*
 * ex_number -- :[line [,line]] nu[mber] [count] [flags]
 *
 *	Display the addressed lines with a leading line number.
 *
 * PUBLIC: int ex_number(SCR *, EXCMD *);
 */
int
ex_number(SCR *sp, EXCMD *cmdp)
{
	if (ex_print(sp, cmdp,
	    &cmdp->addr1, &cmdp->addr2, cmdp->iflags | E_C_HASH))
		return (1);
	sp->lno = cmdp->addr2.lno;
	sp->cno = cmdp->addr2.cno;
	return (0);
}

/*
 * ex_pr -- :[line [,line]] p[rint] [count] [flags]
 *
 *	Display the addressed lines.
 *
 * PUBLIC: int ex_pr(SCR *, EXCMD *);
 */
int
ex_pr(SCR *sp, EXCMD *cmdp)
{
	if (ex_print(sp, cmdp, &cmdp->addr1, &cmdp->addr2, cmdp->iflags))
		return (1);
	sp->lno = cmdp->addr2.lno;
	sp->cno = cmdp->addr2.cno;
	return (0);
}

/*
 * ex_print --
 *	Print the selected lines.
 *
 * PUBLIC: int ex_print(SCR *, EXCMD *, MARK *, MARK *, u_int32_t);
 */
int
ex_print(SCR *sp, EXCMD *cmdp, MARK *fp, MARK *tp, u_int32_t flags)
{
	recno_t from, to;
	size_t col, len;
	char *p, buf[10];

	NEEDFILE(sp, cmdp);

	for (from = fp->lno, to = tp->lno; from <= to; ++from) {
		col = 0;

		/*
		 * Display the line number.  The %6 format is specified
		 * by POSIX 1003.2, and is almost certainly large enough.
		 * Check, though, just in case.
		 */
		if (LF_ISSET(E_C_HASH)) {
			if (from <= 999999) {
				snprintf(buf, sizeof(buf), "%6lu  ", (ulong)from);
				p = buf;
			} else
				p = "TOOBIG  ";
			if (ex_prchars(sp, p, &col, 8, 0, 0))
				return (1);
		}

		/*
		 * Display the line.  The format for E_C_PRINT isn't very good,
		 * especially in handling end-of-line tabs, but they're almost
		 * backward compatible.
		 */
		if (db_get(sp, from, DBG_FATAL, &p, &len))
			return (1);

		if (len == 0 && !LF_ISSET(E_C_LIST))
			(void)ex_puts(sp, "\n");
		else if (ex_ldisplay(sp, p, len, col, flags))
			return (1);

		if (INTERRUPTED(sp))
			break;
	}
	return (0);
}

/*
 * ex_ldisplay --
 *	Display a line without any preceding number.
 *
 * PUBLIC: int ex_ldisplay(SCR *, const char *, size_t, size_t, u_int);
 */
int
ex_ldisplay(SCR *sp, const char *p, size_t len, size_t col, u_int flags)
{
	if (len > 0 && ex_prchars(sp, p, &col, len, LF_ISSET(E_C_LIST), 0))
		return (1);
	if (!INTERRUPTED(sp) && LF_ISSET(E_C_LIST)) {
		p = "$";
		if (ex_prchars(sp, p, &col, 1, LF_ISSET(E_C_LIST), 0))
			return (1);
	}
	if (!INTERRUPTED(sp))
		(void)ex_puts(sp, "\n");
	return (0);
}

/*
 * ex_scprint --
 *	Display a line for the substitute with confirmation routine.
 *
 * PUBLIC: int ex_scprint(SCR *, MARK *, MARK *);
 */
int
ex_scprint(SCR *sp, MARK *fp, MARK *tp)
{
	const char *p;
	size_t col, len;

	col = 0;
	if (O_ISSET(sp, O_NUMBER)) {
		p = "        ";
		if (ex_prchars(sp, p, &col, 8, 0, 0))
			return (1);
	}

	if (db_get(sp, fp->lno, DBG_FATAL, (char **)&p, &len))
		return (1);

	if (ex_prchars(sp, p, &col, fp->cno, 0, ' '))
		return (1);
	p += fp->cno;
	if (ex_prchars(sp,
	    p, &col, tp->cno == fp->cno ? 1 : tp->cno - fp->cno, 0, '^'))
		return (1);
	if (INTERRUPTED(sp))
		return (1);
	p = "[ynq]";
	if (ex_prchars(sp, p, &col, 5, 0, 0))
		return (1);
	(void)ex_fflush(sp);
	return (0);
}

/*
 * ex_prchars --
 *	Local routine to dump characters to the screen.
 */
static int
ex_prchars(SCR *sp, const char *p, size_t *colp, size_t len, u_int flags,
    int repeatc)
{
	CHAR_T ch, *kp;
	size_t col, tlen, ts;

	if (O_ISSET(sp, O_LIST))
		LF_SET(E_C_LIST);
	ts = O_VAL(sp, O_TABSTOP);
	for (col = *colp; len--;)
		if ((ch = *p++) == '\t' && !LF_ISSET(E_C_LIST))
			for (tlen = ts - col % ts;
			    col < sp->cols && tlen--; ++col) {
				(void)ex_printf(sp,
				    "%c", repeatc ? repeatc : ' ');
				if (INTERRUPTED(sp))
					goto intr;
			}
		else {
			kp = KEY_NAME(sp, ch);
			tlen = KEY_LEN(sp, ch);
			if (!repeatc  && col + tlen < sp->cols) {
				(void)ex_puts(sp, kp);
				col += tlen;
			} else
				for (; tlen--; ++kp, ++col) {
					if (col == sp->cols) {
						col = 0;
						(void)ex_puts(sp, "\n");
					}
					(void)ex_printf(sp,
					    "%c", repeatc ? repeatc : *kp);
					if (INTERRUPTED(sp))
						goto intr;
				}
		}
intr:	*colp = col;
	return (0);
}

/*
 * ex_printf --
 *	Ex's version of printf.
 *
 * PUBLIC: int ex_printf(SCR *, const char *, ...);
 */
int
ex_printf(SCR *sp, const char *fmt, ...)
{
	EX_PRIVATE *exp;
	va_list ap;
	size_t n;

	exp = EXP(sp);

	va_start(ap, fmt);
	n = vsnprintf(exp->obp + exp->obp_len,
	    sizeof(exp->obp) - exp->obp_len, fmt, ap);
	va_end(ap);
	if (n >= sizeof(exp->obp) - exp->obp_len)
		n = sizeof(exp->obp) - exp->obp_len - 1;
	exp->obp_len += n;

	/* Flush when reach a <newline> or half the buffer. */
	if (exp->obp[exp->obp_len - 1] == '\n' ||
	    exp->obp_len > sizeof(exp->obp) / 2)
		(void)ex_fflush(sp);
	return (n);
}

/*
 * ex_puts --
 *	Ex's version of puts.
 *
 * PUBLIC: int ex_puts(SCR *, const char *);
 */
int
ex_puts(SCR *sp, const char *str)
{
	EX_PRIVATE *exp;
	int doflush, n;

	exp = EXP(sp);

	/* Flush when reach a <newline> or the end of the buffer. */
	for (doflush = n = 0; *str != '\0'; ++n) {
		if (exp->obp_len > sizeof(exp->obp))
			(void)ex_fflush(sp);
		if ((exp->obp[exp->obp_len++] = *str++) == '\n')
			doflush = 1;
	}
	if (doflush)
		(void)ex_fflush(sp);
	return (n);
}

/*
 * ex_fflush --
 *	Ex's version of fflush.
 *
 * PUBLIC: int ex_fflush(SCR *sp);
 */
int
ex_fflush(SCR *sp)
{
	EX_PRIVATE *exp;

	exp = EXP(sp);

	if (exp->obp_len != 0) {
		sp->gp->scr_msg(sp, M_NONE, exp->obp, exp->obp_len);
		exp->obp_len = 0;
	}
	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ex_print.c,v 1.13 2016/05/27 09:18:12 martijn Exp $ */
2
3			/*-
4			* Copyright (c) 1992, 1993, 1994
5			* The Regents of the University of California. All rights reserved.
6			* Copyright (c) 1992, 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
17			#include <bitstring.h>
18			#include <ctype.h>
19			#include <limits.h>
20			#include <stdarg.h>
21			#include <stdio.h>
22			#include <string.h>
23
24			#include "../common/common.h"
25
26			static int ex_prchars(SCR , const char , size_t *, size_t, u_int, int);
27
28			/*
29			* ex_list -- :[line [,line]] l[ist] [count] [flags]
30			*
31			* Display the addressed lines such that the output is unambiguous.
32			*
33			* PUBLIC: int ex_list(SCR , EXCMD );
34			*/
35			int
36			ex_list(SCR sp, EXCMD cmdp)
37			{
38			if (ex_print(sp, cmdp,
39			&cmdp->addr1, &cmdp->addr2, cmdp->iflags \| E_C_LIST))
40			return (1);
41			sp->lno = cmdp->addr2.lno;
42			sp->cno = cmdp->addr2.cno;
43			return (0);
44			}
45
46			/*
47			* ex_number -- :[line [,line]] nu[mber] [count] [flags]
48			*
49			* Display the addressed lines with a leading line number.
50			*
51			* PUBLIC: int ex_number(SCR , EXCMD );
52			*/
53			int
54			ex_number(SCR sp, EXCMD cmdp)
55			{
56			if (ex_print(sp, cmdp,
57			&cmdp->addr1, &cmdp->addr2, cmdp->iflags \| E_C_HASH))
58			return (1);
59			sp->lno = cmdp->addr2.lno;
60			sp->cno = cmdp->addr2.cno;
61			return (0);
62			}
63
64			/*
65			* ex_pr -- :[line [,line]] p[rint] [count] [flags]
66			*
67			* Display the addressed lines.
68			*
69			* PUBLIC: int ex_pr(SCR , EXCMD );
70			*/
71			int
72			ex_pr(SCR sp, EXCMD cmdp)
73			{
74			if (ex_print(sp, cmdp, &cmdp->addr1, &cmdp->addr2, cmdp->iflags))
75			return (1);
76			sp->lno = cmdp->addr2.lno;
77			sp->cno = cmdp->addr2.cno;
78			return (0);
79			}
80
81			/*
82			* ex_print --
83			* Print the selected lines.
84			*
85			* PUBLIC: int ex_print(SCR , EXCMD , MARK , MARK , u_int32_t);
86			*/
87			int
88			ex_print(SCR sp, EXCMD cmdp, MARK fp, MARK tp, u_int32_t flags)
89			{
90			recno_t from, to;
91			size_t col, len;
92			char *p, buf[10];
93
94			NEEDFILE(sp, cmdp);
95
96			for (from = fp->lno, to = tp->lno; from <= to; ++from) {
97			col = 0;
98
99			/*
100			* Display the line number. The %6 format is specified
101			* by POSIX 1003.2, and is almost certainly large enough.
102			* Check, though, just in case.
103			*/
104			if (LF_ISSET(E_C_HASH)) {
105			if (from <= 999999) {
106			snprintf(buf, sizeof(buf), "%6lu ", (ulong)from);
107			p = buf;
108			} else
109			p = "TOOBIG ";
110			if (ex_prchars(sp, p, &col, 8, 0, 0))
111			return (1);
112			}
113
114			/*
115			* Display the line. The format for E_C_PRINT isn't very good,
116			* especially in handling end-of-line tabs, but they're almost
117			* backward compatible.
118			*/
119			if (db_get(sp, from, DBG_FATAL, &p, &len))
120			return (1);
121
122			if (len == 0 && !LF_ISSET(E_C_LIST))
123			(void)ex_puts(sp, "\n");
124			else if (ex_ldisplay(sp, p, len, col, flags))
125			return (1);
126
127			if (INTERRUPTED(sp))
128			break;
129			}
130			return (0);
131			}
132
133			/*
134			* ex_ldisplay --
135			* Display a line without any preceding number.
136			*
137			* PUBLIC: int ex_ldisplay(SCR , const char , size_t, size_t, u_int);
138			*/
139			int
140			ex_ldisplay(SCR sp, const char p, size_t len, size_t col, u_int flags)
141			{
142			if (len > 0 && ex_prchars(sp, p, &col, len, LF_ISSET(E_C_LIST), 0))
143			return (1);
144			if (!INTERRUPTED(sp) && LF_ISSET(E_C_LIST)) {
145			p = "$";
146			if (ex_prchars(sp, p, &col, 1, LF_ISSET(E_C_LIST), 0))
147			return (1);
148			}
149			if (!INTERRUPTED(sp))
150			(void)ex_puts(sp, "\n");
151			return (0);
152			}
153
154			/*
155			* ex_scprint --
156			* Display a line for the substitute with confirmation routine.
157			*
158			* PUBLIC: int ex_scprint(SCR , MARK , MARK *);
159			*/
160			int
161			ex_scprint(SCR sp, MARK fp, MARK *tp)
162			{
163			const char *p;
164			size_t col, len;
165
166			col = 0;
167			if (O_ISSET(sp, O_NUMBER)) {
168			p = " ";
169			if (ex_prchars(sp, p, &col, 8, 0, 0))
170			return (1);
171			}
172
173			if (db_get(sp, fp->lno, DBG_FATAL, (char **)&p, &len))
174			return (1);
175
176			if (ex_prchars(sp, p, &col, fp->cno, 0, ' '))
177			return (1);
178			p += fp->cno;
179			if (ex_prchars(sp,
180			p, &col, tp->cno == fp->cno ? 1 : tp->cno - fp->cno, 0, '^'))
181			return (1);
182			if (INTERRUPTED(sp))
183			return (1);
184			p = "[ynq]";
185			if (ex_prchars(sp, p, &col, 5, 0, 0))
186			return (1);
187			(void)ex_fflush(sp);
188			return (0);
189			}
190
191			/*
192			* ex_prchars --
193			* Local routine to dump characters to the screen.
194			*/
195			static int
196			ex_prchars(SCR sp, const char p, size_t *colp, size_t len, u_int flags,
197			int repeatc)
198			{
199			CHAR_T ch, *kp;
200			size_t col, tlen, ts;
201
202			if (O_ISSET(sp, O_LIST))
203			LF_SET(E_C_LIST);
204			ts = O_VAL(sp, O_TABSTOP);
205			for (col = *colp; len--;)
206			if ((ch = *p++) == '\t' && !LF_ISSET(E_C_LIST))
207			for (tlen = ts - col % ts;
208			col < sp->cols && tlen--; ++col) {
209			(void)ex_printf(sp,
210			"%c", repeatc ? repeatc : ' ');
211			if (INTERRUPTED(sp))
212			goto intr;
213			}
214			else {
215			kp = KEY_NAME(sp, ch);
216			tlen = KEY_LEN(sp, ch);
217			if (!repeatc && col + tlen < sp->cols) {
218			(void)ex_puts(sp, kp);
219			col += tlen;
220			} else
221			for (; tlen--; ++kp, ++col) {
222			if (col == sp->cols) {
223			col = 0;
224			(void)ex_puts(sp, "\n");
225			}
226			(void)ex_printf(sp,
227			"%c", repeatc ? repeatc : *kp);
228			if (INTERRUPTED(sp))
229			goto intr;
230			}
231			}
232			intr: *colp = col;
233			return (0);
234			}
235
236			/*
237			* ex_printf --
238			* Ex's version of printf.
239			*
240			* PUBLIC: int ex_printf(SCR , const char , ...);
241			*/
242			int
243			ex_printf(SCR sp, const char fmt, ...)
244			{
245			EX_PRIVATE *exp;
246			va_list ap;
247			size_t n;
248
249			exp = EXP(sp);
250
251			va_start(ap, fmt);
252			n = vsnprintf(exp->obp + exp->obp_len,
253			sizeof(exp->obp) - exp->obp_len, fmt, ap);
254			va_end(ap);
255			if (n >= sizeof(exp->obp) - exp->obp_len)
256			n = sizeof(exp->obp) - exp->obp_len - 1;
257			exp->obp_len += n;
258
259			/* Flush when reach a <newline> or half the buffer. */
260			if (exp->obp[exp->obp_len - 1] == '\n' \|\|
261			exp->obp_len > sizeof(exp->obp) / 2)
262			(void)ex_fflush(sp);
263			return (n);
264			}
265
266			/*
267			* ex_puts --
268			* Ex's version of puts.
269			*
270			* PUBLIC: int ex_puts(SCR , const char );
271			*/
272			int
273			ex_puts(SCR sp, const char str)
274			{
275			EX_PRIVATE *exp;
276			int doflush, n;
277
278			exp = EXP(sp);
279
280			/* Flush when reach a <newline> or the end of the buffer. */
281			for (doflush = n = 0; *str != '\0'; ++n) {
282			if (exp->obp_len > sizeof(exp->obp))
283			(void)ex_fflush(sp);
284			if ((exp->obp[exp->obp_len++] = *str++) == '\n')
285			doflush = 1;
286			}
287			if (doflush)
288			(void)ex_fflush(sp);
289			return (n);
290			}
291
292			/*
293			* ex_fflush --
294			* Ex's version of fflush.
295			*
296			* PUBLIC: int ex_fflush(SCR *sp);
297			*/
298			int
299			ex_fflush(SCR *sp)
300			{
301			EX_PRIVATE *exp;
302
303			exp = EXP(sp);
304
305			if (exp->obp_len != 0) {
306			sp->gp->scr_msg(sp, M_NONE, exp->obp, exp->obp_len);
307			exp->obp_len = 0;
308			}
309			return (0);
310			}