lxdream 0.9.1| filename | src/lxpaths.c |
| changeset | 1056:d0896e6530d6 |
| prev | 1041:5fcc39857c5c |
| next | 1205:a486ac64f34b |
| author | nkeynes |
| date | Sun Jun 28 12:07:21 2009 +0000 (14 years ago) |
| permissions | -rw-r--r-- |
| last change | Fix handling of rename failure Fix boneheadedness in get_filename_at |
| view | annotate | diff | log | raw |
1 /**
2 * $Id$
3 *
4 * GUI helper functions that aren't specific to any particular implementation.
5 *
6 * Copyright (c) 2009 Nathan Keynes.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
19 #include <ctype.h>
20 #include <unistd.h>
21 #include <wordexp.h>
22 #include <glib/gstrfuncs.h>
23 #include <glib/gutils.h>
25 #include "gui.h"
26 #include "config.h"
28 static gchar *gui_paths[CONFIG_KEY_MAX];
30 /**
31 * Test if we need to escape a path to prevent substitution mangling.
32 * @return TRUE if the input value contains any character that doesn't
33 * match [a-zA-Z0-9._@%/] (this will escape slightly more than it needs to,
34 * but is safe)
35 */
36 static gboolean path_needs_escaping( const gchar *value )
37 {
38 const gchar *p = value;
39 while( *p ) {
40 if( !isalnum(*p) && *p != '.' && *p != '_' &&
41 *p != '@' && *p != '%' && *p != '/' ) {
42 return TRUE;
43 }
44 p++;
45 }
46 return FALSE;
47 }
49 gchar *get_escaped_path( const gchar *value )
50 {
51 if( value != NULL && path_needs_escaping(value) ) {
52 /* Escape with "", and backslash the remaining characters:
53 * \ " $ `
54 */
55 char buf[strlen(value)*2+3];
56 const char *s = value;
57 char *p = buf;
58 *p++ = '\"';
59 while( *s ) {
60 if( *s == '\\' || *s == '"' || *s == '$' || *s == '`' ) {
61 *p++ = '\\';
62 }
63 *p++ = *s++;
64 }
65 *p++ = '\"';
66 *p = '\0';
67 return g_strdup(buf);
68 } else {
69 return g_strdup(value);
70 }
71 }
73 gchar *get_expanded_path( const gchar *input )
74 {
75 wordexp_t we;
76 if( input == NULL ) {
77 return NULL;
78 }
79 memset(&we,0,sizeof(we));
80 int result = wordexp(input, &we, WRDE_NOCMD);
81 if( result != 0 || we.we_wordc == 0 ) {
82 /* On failure, return the original input unchanged */
83 return g_strdup(input);
84 } else {
85 /* On success, concatenate all 'words' together into a single
86 * space-separated string
87 */
88 int length = we.we_wordc, i;
89 gchar *result, *p;
91 for( i=0; i<we.we_wordc; i++ ) {
92 length += strlen(we.we_wordv[i]);
93 }
94 p = result = g_malloc(length);
95 for( i=0; i<we.we_wordc; i++ ) {
96 if( i != 0 )
97 *p++ = ' ';
98 strcpy( p, we.we_wordv[i] );
99 p += strlen(p);
100 }
101 wordfree(&we);
102 return result;
103 }
104 }
106 gchar *get_absolute_path( const gchar *in_path )
107 {
108 char tmp[PATH_MAX];
109 if( in_path == NULL ) {
110 return NULL;
111 }
112 if( in_path[0] == '/' || in_path[0] == 0 ) {
113 return g_strdup(in_path);
114 } else {
115 getcwd(tmp, sizeof(tmp));
116 return g_strdup_printf("%s%c%s", tmp, G_DIR_SEPARATOR, in_path);
117 }
118 }
120 gchar *get_filename_at( const gchar *at, const gchar *filename )
121 {
122 char tmp[PATH_MAX];
123 char *p = strrchr( at, '/' );
124 if( p == NULL ) {
125 /* No path at all, so just return filename */
126 return g_strdup(filename);
127 } else {
128 int off = p-at;
129 return g_strdup_printf("%.*s%c%s", off, at, G_DIR_SEPARATOR, filename );
130 }
131 }
133 const gchar *get_gui_path( int key )
134 {
135 if( gui_paths[key] == NULL ) {
136 gui_paths[key] = lxdream_get_global_config_path_value(key);
137 /* If no path defined, go with the current working directory */
138 if( gui_paths[key] == NULL ) {
139 gui_paths[key] = get_absolute_path(".");
140 }
141 }
142 return gui_paths[key];
143 }
145 void set_gui_path( int key, const gchar *path )
146 {
147 g_free(gui_paths[key]);
148 gui_paths[key] = g_strdup(path);
149 }
151 void reset_gui_paths()
152 {
153 int i;
154 for( i=0; i < CONFIG_KEY_MAX; i++ ) {
155 g_free(gui_paths[i]);
156 gui_paths[i] = NULL;
157 }
158 }
.