1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include "support.h"
22 #include "ncmpc.h"
24 #include <assert.h>
25 #include <time.h>
26 #include <ctype.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
31 #define BUFSIZE 1024
33 extern void screen_status_printf(const char *format, ...);
35 static gboolean noconvert = TRUE;
37 size_t
38 my_strlen(const char *str)
39 {
40 assert(str != NULL);
42 if (g_utf8_validate(str, -1, NULL)) {
43 size_t len = g_utf8_strlen(str, -1);
44 size_t width = 0;
45 gunichar c;
47 while (len--) {
48 c = g_utf8_get_char(str);
49 width += g_unichar_iswide(c) ? 2 : 1;
50 str += g_unichar_to_utf8(c, NULL);
51 }
53 return width;
54 } else
55 return strlen(str);
56 }
58 char *
59 remove_trailing_slash(char *path)
60 {
61 int len;
63 if (path == NULL)
64 return NULL;
66 len = strlen(path);
67 if (len > 1 && path[len - 1] == '/')
68 path[len - 1] = '\0';
70 return path;
71 }
73 char *
74 lowerstr(char *str)
75 {
76 gsize i;
77 gsize len = strlen(str);
79 if (str == NULL)
80 return NULL;
82 i = 0;
83 while (i < len && str[i]) {
84 str[i] = tolower(str[i]);
85 i++;
86 }
87 return str;
88 }
91 #ifndef HAVE_BASENAME
92 char *
93 basename(char *path)
94 {
95 char *end;
97 assert(path != NULL);
99 path = remove_trailing_slash(path);
100 end = path + strlen(path);
102 while (end > path && *end != '/')
103 end--;
105 if (*end == '/' && end != path)
106 return end+1;
108 return path;
109 }
110 #endif /* HAVE_BASENAME */
113 #ifndef HAVE_STRCASESTR
114 char *
115 strcasestr(const char *haystack, const char *needle)
116 {
117 assert(haystack != NULL);
118 assert(needle != NULL);
120 return strstr(lowerstr(haystack), lowerstr(needle));
121 }
122 #endif /* HAVE_STRCASESTR */
124 // FIXME: utf-8 length
125 char *
126 strscroll(char *str, char *separator, int width, scroll_state_t *st)
127 {
128 gchar *tmp, *buf;
129 gsize len, size;
131 assert(str != NULL);
132 assert(separator != NULL);
133 assert(st != NULL);
135 if( st->offset==0 ) {
136 st->offset++;
137 return g_strdup(str);
138 }
140 /* create a buffer containing the string and the separator */
141 size = strlen(str)+strlen(separator)+1;
142 tmp = g_malloc(size);
143 g_strlcpy(tmp, str, size);
144 g_strlcat(tmp, separator, size);
145 len = my_strlen(tmp);
147 if (st->offset >= len)
148 st->offset = 0;
150 /* create the new scrolled string */
151 size = width+1;
152 if (g_utf8_validate(tmp, -1, NULL) ) {
153 int ulen;
154 buf = g_malloc(size*6);// max length of utf8 char is 6
155 g_utf8_strncpy(buf, g_utf8_offset_to_pointer(tmp,st->offset), size);
156 if( (ulen = g_utf8_strlen(buf, -1)) < width )
157 g_utf8_strncpy(buf+strlen(buf), tmp, size - ulen - 1);
158 } else {
159 buf = g_malloc(size);
160 g_strlcpy(buf, tmp+st->offset, size);
161 if (strlen(buf) < (size_t)width)
162 g_strlcat(buf, tmp, size);
163 }
164 if( time(NULL)-st->t >= 1 ) {
165 st->t = time(NULL);
166 st->offset++;
167 }
168 g_free(tmp);
169 return buf;
170 }
172 void
173 charset_init(gboolean disable)
174 {
175 noconvert = disable;
176 }
178 char *
179 utf8_to_locale(const char *utf8str)
180 {
181 gchar *str;
182 gsize rb, wb;
183 GError *error;
185 assert(utf8str != NULL);
187 if (noconvert)
188 return g_strdup(utf8str);
190 rb = 0; /* bytes read */
191 wb = 0; /* bytes written */
192 error = NULL;
193 str = g_locale_from_utf8(utf8str,
194 strlen(utf8str),
195 &wb, &rb,
196 &error);
197 if (error) {
198 const char *charset;
200 g_get_charset(&charset);
201 screen_status_printf(_("Error: Unable to convert characters to %s"),
202 charset);
203 D("utf8_to_locale(): %s\n", error->message);
204 g_error_free(error);
205 return g_strdup(utf8str);
206 }
208 return str;
209 }
211 char *
212 locale_to_utf8(const char *localestr)
213 {
214 gchar *str;
215 gsize rb, wb;
216 GError *error;
218 assert(localestr != NULL);
220 if (noconvert)
221 return g_strdup(localestr);
223 rb = 0; /* bytes read */
224 wb = 0; /* bytes written */
225 error = NULL;
226 str = g_locale_to_utf8(localestr,
227 strlen(localestr),
228 &wb, &rb,
229 &error);
230 if (error) {
231 screen_status_printf(_("Error: Unable to convert characters to UTF-8"));
232 D("locale_to_utf8: %s\n", error->message);
233 g_error_free(error);
234 return g_strdup(localestr);
235 }
237 return str;
238 }