1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* string-util : utilities for gchar* strings */
/*
*
* Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
* Jeffrey Stedfast <fejj@helixcode.com>
*
* Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <config.h>
#include "string-utils.h"
#include "string.h"
gboolean
string_equal_for_glist (gconstpointer v, gconstpointer v2)
{
return (!strcmp ( ((const gchar *)v), ((const gchar*)v2))) == 0;
}
/* utility func : frees a gchar element in a GList */
static void
__string_list_free_string (gpointer data, gpointer user_data)
{
gchar *string = (gchar *)data;
g_free (string);
}
void
string_list_free (GList *string_list)
{
if (string_list == NULL) return;
g_list_foreach (string_list, __string_list_free_string, NULL);
g_list_free (string_list);
}
GList *
string_split (const gchar *string, char sep, const gchar *trim_chars, StringTrimOption trim_options)
{
GList *result = NULL;
gint first, last, pos;
gchar *new_string;
g_assert (string);
first = 0;
last = strlen(string) - 1;
/* strip leading and trailing separators */
while ( (first<=last) && (string[first]==sep) )
first++;
while ( (first<=last) && (string[last]==sep) )
last--;
while (first<=last) {
pos = first;
/* find next separator */
while ((pos<=last) && (string[pos]!=sep)) pos++;
if (first != pos) {
new_string = g_strndup (string+first, pos-first);
/* could do trimming in line to speed up this code */
if (trim_chars) string_trim (new_string, trim_chars, trim_options);
result = g_list_append (result, new_string);
}
first = pos + 1;
}
return result;
}
void
string_trim (gchar *string, const gchar *trim_chars, StringTrimOption options)
{
gint first_ok;
gint last_ok;
guint length;
g_return_if_fail (string);
length = strlen (string);
if (length==0)
return;
first_ok = 0;
last_ok = length - 1;
if (options & STRING_TRIM_STRIP_LEADING)
while ( (first_ok <= last_ok) && (strchr (trim_chars, string[first_ok])!=NULL) )
first_ok++;
if (options & STRING_TRIM_STRIP_TRAILING)
while ( (first_ok <= last_ok) && (strchr (trim_chars, string[last_ok])!=NULL) )
last_ok--;
if (first_ok > 0)
memmove (string, string+first_ok, last_ok - first_ok + 1);
string[last_ok - first_ok +1] = '\0';
}
/**
* remove_suffix: remove a suffix from a string
* @s: the string to remove the suffix from.
* @suffix: the suffix to remove
* @suffix_found : suffix found flag
*
* Remove a suffix from a string. If the
* string ends with the full suffix, a copy
* of the string without the suffix is returned and
* @suffix_found is set to %TRUE.
* Otherwise, NULL is returned and
* @suffix_found is set to %FALSE.
*
* Return value: an allocated copy of the string without the suffix or NULL if the suffix was not found.
**/
gchar *
string_prefix (const gchar *s, const gchar *suffix, gboolean *suffix_found)
{
guint s_len, suf_len;
guint suffix_pos;
char *result_string;
g_assert (s);
g_assert (suffix);
g_assert (suffix_found);
s_len = strlen (s);
suf_len = strlen (suffix);
/* if the string is shorter than the suffix, do nothing */
if (s_len < suf_len) {
*suffix_found = FALSE;
return NULL;
}
/* theoretical position of the prefix */
suffix_pos = s_len - suf_len;
/* compare the right hand side of the string with the suffix */
if (!strncmp (s+suffix_pos, suffix, suf_len)) {
/* if the suffix matches, check that there are
characters before */
if (suffix_pos == 0) {
result_string = NULL;
*suffix_found = TRUE;
} else {
result_string = g_strndup (s, suffix_pos);
*suffix_found = TRUE;
}
} else {
result_string = NULL;
*suffix_found = FALSE;
}
return result_string;
}
void
string_unquote (gchar *string)
{
/* if the string is quoted, unquote it */
g_return_if_fail (string != NULL);
if (*string == '"' && *(string + strlen (string) - 1) == '"') {
*(string + strlen (string) - 1) = '\0';
if (*string)
memmove (string, string+1, strlen (string));
}
}
gchar *
strip (gchar *string, gchar c)
{
/* strip all occurances of c from the string */
gchar *src, *dst;
g_return_val_if_fail (string != NULL, NULL);
for (src = dst = string; *src; src++)
if (*src != c)
*dst++ = *src;
*dst = '\0';
return string;
}
|
