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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/sort/vsort.c	Lines:	0	106	0.0 %
Date:	2017-11-13	Branches:	0	112	0.0 %


/*	$OpenBSD: vsort.c,v 1.2 2015/04/01 21:46:38 millert Exp $	*/

/*-
 * Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com>
 * Copyright (C) 2012 Gabor Kovesdan <gabor@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>

#include <ctype.h>
#include <stdlib.h>
#include <string.h>

#include "sort.h"
#include "vsort.h"

static inline bool
isdigit_clocale(wchar_t c)
{
	return (c >= L'0' && c <= L'9');
}

static inline bool
isalpha_clocale(wchar_t c)
{
	return ((c >= L'a' && c <= L'z') || (c >= L'A' && c <= L'Z'));
}

static inline bool
isalnum_clocale(wchar_t c)
{
	return ((c >= L'a' && c <= L'z') || (c >= L'A' && c <= L'Z') ||
	    (c >= L'0' && c <= L'9'));
}

/*
 * Find string suffix of format: (\.[A-Za-z~][A-Za-z0-9~]*)*$
 * Set length of string before suffix.
 */
static void
find_suffix(bwstring_iterator si, bwstring_iterator se, size_t *len)
{
	wchar_t c;
	size_t clen;
	bool expect_alpha, sfx;

	sfx = false;
	expect_alpha = false;
	*len = 0;
	clen = 0;

	while ((si < se) && (c = bws_get_iter_value(si))) {
		if (expect_alpha) {
			expect_alpha = false;
			if (!isalpha_clocale(c) && (c != L'~'))
				sfx = false;
		} else if (c == L'.') {
			expect_alpha = true;
			if (!sfx) {
				sfx = true;
				*len = clen;
			}
		} else if (!isalnum_clocale(c) && (c != L'~'))
			sfx = false;

		si = bws_iterator_inc(si, 1);
		++clen;
	}

	/* This code must be here to make the implementation compatible
	 * with WORDING of GNU sort documentation.
	 * But the GNU sort implementation is not following its own
	 * documentation.  GNU sort allows empty file extensions
	 * (just dot with nothing after); but the regular expression in
	 * their documentation does not allow empty file extensions.
	 * We chose to make our implementation compatible with GNU sort
	 * implementation.  If they will ever fix their bug, this code
	 * must be uncommented. Or they may choose to fix the info page,
	 * then the code stays commented.
	 *
	 if (expect_alpha)
	 	sfx = false;
	 */

	if (!sfx)
		*len = clen;
}

static inline int
cmp_chars(wchar_t c1, wchar_t c2)
{
	if (c1 == c2)
		return 0;

	if (c1 == L'~')
		return -1;
	if (c2 == L'~')
		return 1;

	if (isdigit_clocale(c1) || !c1)
		return (isdigit_clocale(c2) || !c2) ? 0 : -1;

	if (isdigit_clocale(c2) || !c2)
		return 1;

	if (isalpha_clocale(c1))
		return isalpha_clocale(c2) ? (int)c1 - (int)c2 : -1;

	if (isalpha_clocale(c2))
		return 1;

	return (int)c1 - (int)c2;
}

static int
cmpversions(bwstring_iterator si1, bwstring_iterator se1,
    bwstring_iterator si2, bwstring_iterator se2)
{
	int cmp, diff;

	while ((si1 < se1) || (si2 < se2)) {
		diff = 0;

		while (((si1 < se1) &&
		    !isdigit_clocale(bws_get_iter_value(si1))) ||
		    ((si2 < se2) && !isdigit_clocale(bws_get_iter_value(si2)))) {
			wchar_t c1, c2;

			c1 = (si1 < se1) ? bws_get_iter_value(si1) : 0;
			c2 = (si2 < se2) ? bws_get_iter_value(si2) : 0;

			cmp = cmp_chars(c1, c2);
			if (cmp)
				return cmp;

			if (si1 < se1)
				si1 = bws_iterator_inc(si1, 1);
			if (si2 < se2)
				si2 = bws_iterator_inc(si2, 1);
		}

		while (bws_get_iter_value(si1) == L'0')
			si1 = bws_iterator_inc(si1, 1);

		while (bws_get_iter_value(si2) == L'0')
			si2 = bws_iterator_inc(si2, 1);

		while (isdigit_clocale(bws_get_iter_value(si1)) &&
		    isdigit_clocale(bws_get_iter_value(si2))) {
			if (!diff)
				diff = ((int)bws_get_iter_value(si1) -
				    (int)bws_get_iter_value(si2));
			si1 = bws_iterator_inc(si1, 1);
			si2 = bws_iterator_inc(si2, 1);
		}

		if (isdigit_clocale(bws_get_iter_value(si1)))
			return 1;

		if (isdigit_clocale(bws_get_iter_value(si2)))
			return -1;

		if (diff)
			return diff;
	}

	return 0;
}

/*
 * Compare two version strings
 */
int
vcmp(struct bwstring *s1, struct bwstring *s2)
{
	bwstring_iterator si1, si2;
	wchar_t c1, c2;
	size_t len1, len2, slen1, slen2;
	int cmp_bytes, cmp_res;

	if (s1 == s2)
		return 0;

	cmp_bytes = bwscmp(s1, s2, 0);
	if (cmp_bytes == 0)
		return 0;

	len1 = slen1 = BWSLEN(s1);
	len2 = slen2 = BWSLEN(s2);

	if (slen1 < 1)
		return -1;
	if (slen2 < 1)
		return 1;

	si1 = bws_begin(s1);
	si2 = bws_begin(s2);

	c1 = bws_get_iter_value(si1);
	c2 = bws_get_iter_value(si2);

	if (c1 == L'.' && (slen1 == 1))
		return -1;

	if (c2 == L'.' && (slen2 == 1))
		return 1;

	if (slen1 == 2 && c1 == L'.' &&
	    bws_get_iter_value(bws_iterator_inc(si1, 1)) == L'.')
		return -1;
	if (slen2 == 2 && c2 == L'.' &&
	    bws_get_iter_value(bws_iterator_inc(si2, 1)) == L'.')
		return 1;

	if (c1 == L'.' && c2 != L'.')
		return -1;
	if (c1 != L'.' && c2 == L'.')
		return 1;

	if (c1 == L'.' && c2 == L'.') {
		si1 = bws_iterator_inc(si1, 1);
		si2 = bws_iterator_inc(si2, 1);
	}

	find_suffix(si1, bws_end(s1), &len1);
	find_suffix(si2, bws_end(s2), &len2);

	if ((len1 == len2) && (bws_iterator_cmp(si1, si2, len1) == 0))
		return cmp_bytes;

	cmp_res = cmpversions(si1, bws_iterator_inc(si1, len1), si2,
	    bws_iterator_inc(si2, len2));

	if (cmp_res == 0)
	  cmp_res = cmp_bytes;

	return cmp_res;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: vsort.c,v 1.2 2015/04/01 21:46:38 millert Exp $ */
2
3			/*-
4			* Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com>
5			* Copyright (C) 2012 Gabor Kovesdan <gabor@FreeBSD.org>
6			* All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			*
17			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27			* SUCH DAMAGE.
28			*/
29
30			#include <sys/types.h>
31
32			#include <ctype.h>
33			#include <stdlib.h>
34			#include <string.h>
35
36			#include "sort.h"
37			#include "vsort.h"
38
39			static inline bool
40			isdigit_clocale(wchar_t c)
41			{
42			return (c >= L'0' && c <= L'9');
43			}
44
45			static inline bool
46			isalpha_clocale(wchar_t c)
47			{
48			return ((c >= L'a' && c <= L'z') \|\| (c >= L'A' && c <= L'Z'));
49			}
50
51			static inline bool
52			isalnum_clocale(wchar_t c)
53			{
54			return ((c >= L'a' && c <= L'z') \|\| (c >= L'A' && c <= L'Z') \|\|
55			(c >= L'0' && c <= L'9'));
56			}
57
58			/*
59			* Find string suffix of format: (\.[A-Za-z~][A-Za-z0-9~])$
60			* Set length of string before suffix.
61			*/
62			static void
63			find_suffix(bwstring_iterator si, bwstring_iterator se, size_t *len)
64			{
65			wchar_t c;
66			size_t clen;
67			bool expect_alpha, sfx;
68
69			sfx = false;
70			expect_alpha = false;
71			*len = 0;
72			clen = 0;
73
74			while ((si < se) && (c = bws_get_iter_value(si))) {
75			if (expect_alpha) {
76			expect_alpha = false;
77			if (!isalpha_clocale(c) && (c != L'~'))
78			sfx = false;
79			} else if (c == L'.') {
80			expect_alpha = true;
81			if (!sfx) {
82			sfx = true;
83			*len = clen;
84			}
85			} else if (!isalnum_clocale(c) && (c != L'~'))
86			sfx = false;
87
88			si = bws_iterator_inc(si, 1);
89			++clen;
90			}
91
92			/* This code must be here to make the implementation compatible
93			* with WORDING of GNU sort documentation.
94			* But the GNU sort implementation is not following its own
95			* documentation. GNU sort allows empty file extensions
96			* (just dot with nothing after); but the regular expression in
97			* their documentation does not allow empty file extensions.
98			* We chose to make our implementation compatible with GNU sort
99			* implementation. If they will ever fix their bug, this code
100			* must be uncommented. Or they may choose to fix the info page,
101			* then the code stays commented.
102			*
103			if (expect_alpha)
104			sfx = false;
105			*/
106
107			if (!sfx)
108			*len = clen;
109			}
110
111			static inline int
112			cmp_chars(wchar_t c1, wchar_t c2)
113			{
114			if (c1 == c2)
115			return 0;
116
117			if (c1 == L'~')
118			return -1;
119			if (c2 == L'~')
120			return 1;
121
122			if (isdigit_clocale(c1) \|\| !c1)
123			return (isdigit_clocale(c2) \|\| !c2) ? 0 : -1;
124
125			if (isdigit_clocale(c2) \|\| !c2)
126			return 1;
127
128			if (isalpha_clocale(c1))
129			return isalpha_clocale(c2) ? (int)c1 - (int)c2 : -1;
130
131			if (isalpha_clocale(c2))
132			return 1;
133
134			return (int)c1 - (int)c2;
135			}
136
137			static int
138			cmpversions(bwstring_iterator si1, bwstring_iterator se1,
139			bwstring_iterator si2, bwstring_iterator se2)
140			{
141			int cmp, diff;
142
143			while ((si1 < se1) \|\| (si2 < se2)) {
144			diff = 0;
145
146			while (((si1 < se1) &&
147			!isdigit_clocale(bws_get_iter_value(si1))) \|\|
148			((si2 < se2) && !isdigit_clocale(bws_get_iter_value(si2)))) {
149			wchar_t c1, c2;
150
151			c1 = (si1 < se1) ? bws_get_iter_value(si1) : 0;
152			c2 = (si2 < se2) ? bws_get_iter_value(si2) : 0;
153
154			cmp = cmp_chars(c1, c2);
155			if (cmp)
156			return cmp;
157
158			if (si1 < se1)
159			si1 = bws_iterator_inc(si1, 1);
160			if (si2 < se2)
161			si2 = bws_iterator_inc(si2, 1);
162			}
163
164			while (bws_get_iter_value(si1) == L'0')
165			si1 = bws_iterator_inc(si1, 1);
166
167			while (bws_get_iter_value(si2) == L'0')
168			si2 = bws_iterator_inc(si2, 1);
169
170			while (isdigit_clocale(bws_get_iter_value(si1)) &&
171			isdigit_clocale(bws_get_iter_value(si2))) {
172			if (!diff)
173			diff = ((int)bws_get_iter_value(si1) -
174			(int)bws_get_iter_value(si2));
175			si1 = bws_iterator_inc(si1, 1);
176			si2 = bws_iterator_inc(si2, 1);
177			}
178
179			if (isdigit_clocale(bws_get_iter_value(si1)))
180			return 1;
181
182			if (isdigit_clocale(bws_get_iter_value(si2)))
183			return -1;
184
185			if (diff)
186			return diff;
187			}
188
189			return 0;
190			}
191
192			/*
193			* Compare two version strings
194			*/
195			int
196			vcmp(struct bwstring s1, struct bwstring s2)
197			{
198			bwstring_iterator si1, si2;
199			wchar_t c1, c2;
200			size_t len1, len2, slen1, slen2;
201			int cmp_bytes, cmp_res;
202
203			if (s1 == s2)
204			return 0;
205
206			cmp_bytes = bwscmp(s1, s2, 0);
207			if (cmp_bytes == 0)
208			return 0;
209
210			len1 = slen1 = BWSLEN(s1);
211			len2 = slen2 = BWSLEN(s2);
212
213			if (slen1 < 1)
214			return -1;
215			if (slen2 < 1)
216			return 1;
217
218			si1 = bws_begin(s1);
219			si2 = bws_begin(s2);
220
221			c1 = bws_get_iter_value(si1);
222			c2 = bws_get_iter_value(si2);
223
224			if (c1 == L'.' && (slen1 == 1))
225			return -1;
226
227			if (c2 == L'.' && (slen2 == 1))
228			return 1;
229
230			if (slen1 == 2 && c1 == L'.' &&
231			bws_get_iter_value(bws_iterator_inc(si1, 1)) == L'.')
232			return -1;
233			if (slen2 == 2 && c2 == L'.' &&
234			bws_get_iter_value(bws_iterator_inc(si2, 1)) == L'.')
235			return 1;
236
237			if (c1 == L'.' && c2 != L'.')
238			return -1;
239			if (c1 != L'.' && c2 == L'.')
240			return 1;
241
242			if (c1 == L'.' && c2 == L'.') {
243			si1 = bws_iterator_inc(si1, 1);
244			si2 = bws_iterator_inc(si2, 1);
245			}
246
247			find_suffix(si1, bws_end(s1), &len1);
248			find_suffix(si2, bws_end(s2), &len2);
249
250			if ((len1 == len2) && (bws_iterator_cmp(si1, si2, len1) == 0))
251			return cmp_bytes;
252
253			cmp_res = cmpversions(si1, bws_iterator_inc(si1, len1), si2,
254			bws_iterator_inc(si2, len2));
255
256			if (cmp_res == 0)
257			cmp_res = cmp_bytes;
258
259			return cmp_res;
260			}