2 * Shell utility functions.
5 * Gonzalo Paniagua Javier (gonzalo@novell.com
7 * (C) 2006 Novell, Inc.
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26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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
));