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;
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 g_ptr_array_add (array, g_string_free (str, FALSE));
61 str = g_string_new ("");
62 } else if (c == '\\'){
65 g_string_append_c (str, c);
66 } else if (g_ascii_isspace (c)) {
68 g_ptr_array_add (array, g_string_free (str, FALSE));
69 str = g_string_new ("");
71 } else if (c == '\\') {
73 } else if (c == '\'' || c == '"') {
76 g_string_append_c (str, c);
82 *error = g_error_new (G_LOG_DOMAIN, 0, "Unfinished escape.");
83 g_string_free (str, TRUE);
89 *error = g_error_new (G_LOG_DOMAIN, 0, "Unfinished quote.");
90 g_string_free (str, TRUE);
95 g_ptr_array_add (array, g_string_free (str, FALSE));
97 g_string_free (str, TRUE);
99 g_ptr_array_add (array, NULL);
104 g_shell_parse_argv (const gchar *command_line, gint *argcp, gchar ***argvp, GError **error)
110 g_return_val_if_fail (command_line, FALSE);
111 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
113 array = g_ptr_array_new();
114 if (split_cmdline (command_line, array, error)) {
115 g_ptr_array_add (array, NULL);
116 g_strfreev ((gchar **) array->pdata);
117 g_ptr_array_free (array, FALSE);
122 argv = (gchar **) array->pdata;
126 g_ptr_array_free (array, FALSE);
131 *argcp = array->len - 1;
140 g_ptr_array_free (array, FALSE);
145 g_shell_quote (const gchar *unquoted_string)
147 GString *result = g_string_new ("'");
150 for (p = unquoted_string; *p; p++){
152 g_string_append (result, "'\\'");
153 g_string_append_c (result, *p);
155 g_string_append_c (result, '\'');
156 return g_string_free (result, FALSE);
160 g_shell_unquote (const gchar *quoted_string, GError **error)
166 if (quoted_string == NULL)
169 /* Quickly try to determine if we need to unquote or not */
170 for (p = quoted_string; *p; p++){
171 if (*p == '\'' || *p == '"' || *p == '\\'){
178 return g_strdup (quoted_string);
180 /* We do need to unquote */
181 result = g_string_new ("");
182 for (p = quoted_string; *p; p++){
185 /* Process single quote, not even \ is processed by glib's version */
189 g_string_append_c (result, *p);
192 g_set_error (error, 0, 0, "Open quote");
195 } else if (*p == '"'){
196 /* Process double quote, allows some escaping */
203 g_set_error (error, 0, 0, "Open quote");
213 g_string_append_c (result, '\\');
217 g_string_append_c (result, *p);
220 g_set_error (error, 0, 0, "Open quote");
223 } else if (*p == '\\'){
225 if (!(c == '$' || c == '"' || c == '\\' || c == '`' || c == 0))
226 g_string_append_c (result, '\\');
230 g_string_append_c (result, c);
232 g_string_append_c (result, *p);
234 return g_string_free (result, FALSE);
239 * This test is designed to be built with the 2 glib/eglib to compare
250 "\"foo\" 'bar' \"baz\"",
255 "\"f\\$\"\\\"\\\\", // /\\\"\\\\"
269 char *r1 = g_shell_unquote (*s, NULL);
270 char *r2 = g2_shell_unquote (*s, NULL);
271 char *ok = r1 == r2 ? "ok" : (r1 != NULL && r2 != NULL && strcmp (r1, r2) == 0) ? "ok" : "fail";
273 printf ("%s [%s] -> [%s] - [%s]\n", ok, *s, r1, r2);
283 for (i = 32; i < 255; i++){
285 printf ("%d [%s] -> [%s]\n", i, buffer, g_shell_unquote (buffer, NULL));