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[disorder] / lib / trackorder.c
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1/*
2 * This file is part of DisOrder
3 * Copyright (C) 2005, 2006, 2007 Richard Kettlewell
4 *
e7eb3a27 5 * This program is free software: you can redistribute it and/or modify
e307c6fe 6 * it under the terms of the GNU General Public License as published by
e7eb3a27 7 * the Free Software Foundation, either version 3 of the License, or
e307c6fe 8 * (at your option) any later version.
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9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
e307c6fe 15 * You should have received a copy of the GNU General Public License
e7eb3a27 16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
18
05b75f8d 19#include "common.h"
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20
21#include <pcre.h>
22#include <fnmatch.h>
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23
24#include "trackname.h"
25#include "log.h"
26#include "unicode.h"
27
28int compare_tracks(const char *sa, const char *sb,
29 const char *da, const char *db,
30 const char *ta, const char *tb) {
31 int c;
32
33 if((c = strcmp(utf8_casefold_canon(sa, strlen(sa), 0),
34 utf8_casefold_canon(sb, strlen(sb), 0))))
35 return c;
36 if((c = strcmp(sa, sb))) return c;
37 if((c = strcmp(utf8_casefold_canon(da, strlen(da), 0),
38 utf8_casefold_canon(db, strlen(db), 0))))
39 return c;
40 if((c = strcmp(da, db))) return c;
41 return compare_path(ta, tb);
42}
43
44int compare_path_raw(const unsigned char *ap, size_t an,
45 const unsigned char *bp, size_t bn) {
46 /* Don't change this function! The database sort order depends on it */
47 while(an > 0 && bn > 0) {
48 if(*ap == *bp) {
49 ap++;
50 bp++;
51 an--;
52 bn--;
53 } else if(*ap == '/') {
54 return -1; /* /a/b < /aa/ */
55 } else if(*bp == '/') {
56 return 1; /* /aa > /a/b */
57 } else
58 return *ap - *bp;
59 }
60 if(an > 0)
61 return 1; /* /a/b > /a and /ab > /a */
62 else if(bn > 0)
63 return -1; /* /a < /ab and /a < /a/b */
64 else
65 return 0;
66}
67
68/*
69Local Variables:
70c-basic-offset:2
71comment-column:40
72fill-column:79
73End:
74*/