2 * Shell utility functions.
5 * Gonzalo Paniagua Javier (gonzalo@novell.com
7 * (C) 2006 Novell, Inc.
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32 split_cmdline (const gchar *cmdline, GPtrArray *array, GError **error)
36 gboolean escaped = FALSE, fresh = TRUE;
37 gchar quote_char = '\0';
40 str = g_string_new ("");
41 ptr = (gchar *) cmdline;
42 while ((c = *ptr++) != '\0') {
45 * \CHAR is only special inside a double quote if CHAR is
46 * one of: $`"\ and newline
48 if (quote_char == '\"'){
49 if (!(c == '$' || c == '`' || c == '"' || c == '\\'))
50 g_string_append_c (str, '\\');
51 g_string_append_c (str, c);
53 if (!g_ascii_isspace (c))
54 g_string_append_c (str, c);
57 } else if (quote_char) {
58 if (c == quote_char) {
60 if (fresh && (g_ascii_isspace (*ptr) || *ptr == '\0')){
61 g_ptr_array_add (array, g_string_free (str, FALSE));
62 str = g_string_new ("");
64 } else if (c == '\\'){
67 g_string_append_c (str, c);
68 } else if (g_ascii_isspace (c)) {
70 g_ptr_array_add (array, g_string_free (str, FALSE));
71 str = g_string_new ("");
73 } else if (c == '\\') {
75 } else if (c == '\'' || c == '"') {
76 fresh = str->len == 0;
79 g_string_append_c (str, c);
85 *error = g_error_new (G_LOG_DOMAIN, 0, "Unfinished escape.");
86 g_string_free (str, TRUE);
92 *error = g_error_new (G_LOG_DOMAIN, 0, "Unfinished quote.");
93 g_string_free (str, TRUE);
98 g_ptr_array_add (array, g_string_free (str, FALSE));
100 g_string_free (str, TRUE);
102 g_ptr_array_add (array, NULL);
107 g_shell_parse_argv (const gchar *command_line, gint *argcp, gchar ***argvp, GError **error)
113 g_return_val_if_fail (command_line, FALSE);
114 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
116 array = g_ptr_array_new();
117 if (split_cmdline (command_line, array, error)) {
118 g_ptr_array_add (array, NULL);
119 g_strfreev ((gchar **) array->pdata);
120 g_ptr_array_free (array, FALSE);
125 argv = (gchar **) array->pdata;
129 g_ptr_array_free (array, FALSE);
134 *argcp = array->len - 1;
143 g_ptr_array_free (array, FALSE);
148 g_shell_quote (const gchar *unquoted_string)
150 GString *result = g_string_new ("'");
153 for (p = unquoted_string; *p; p++){
155 g_string_append (result, "'\\'");
156 g_string_append_c (result, *p);
158 g_string_append_c (result, '\'');
159 return g_string_free (result, FALSE);
163 g_shell_unquote (const gchar *quoted_string, GError **error)
169 if (quoted_string == NULL)
172 /* Quickly try to determine if we need to unquote or not */
173 for (p = quoted_string; *p; p++){
174 if (*p == '\'' || *p == '"' || *p == '\\'){
181 return g_strdup (quoted_string);
183 /* We do need to unquote */
184 result = g_string_new ("");
185 for (p = quoted_string; *p; p++){
188 /* Process single quote, not even \ is processed by glib's version */
192 g_string_append_c (result, *p);
195 g_set_error (error, 0, 0, "Open quote");
198 } else if (*p == '"'){
199 /* Process double quote, allows some escaping */
206 g_set_error (error, 0, 0, "Open quote");
216 g_string_append_c (result, '\\');
220 g_string_append_c (result, *p);
223 g_set_error (error, 0, 0, "Open quote");
226 } else if (*p == '\\'){
228 if (!(c == '$' || c == '"' || c == '\\' || c == '`' || c == '\'' || c == 0 ))
229 g_string_append_c (result, '\\');
233 g_string_append_c (result, c);
235 g_string_append_c (result, *p);
237 return g_string_free (result, FALSE);
242 * This test is designed to be built with the 2 glib/eglib to compare
253 "\"foo\" 'bar' \"baz\"",
258 "\"f\\$\"\\\"\\\\", // /\\\"\\\\"
272 char *r1 = g_shell_unquote (*s, NULL);
273 char *r2 = g2_shell_unquote (*s, NULL);
274 char *ok = r1 == r2 ? "ok" : (r1 != NULL && r2 != NULL && strcmp (r1, r2) == 0) ? "ok" : "fail";
276 printf ("%s [%s] -> [%s] - [%s]\n", ok, *s, r1, r2);
286 for (i = 32; i < 255; i++){
288 printf ("%d [%s] -> [%s]\n", i, buffer, g_shell_unquote (buffer, NULL));