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.
33 split_cmdline (const gchar
*cmdline
, GPtrArray
*array
, GError
**gerror
)
37 gboolean escaped
= FALSE
, fresh
= TRUE
;
38 gchar quote_char
= '\0';
41 str
= g_string_new ("");
42 ptr
= (gchar
*) cmdline
;
43 while ((c
= *ptr
++) != '\0') {
46 * \CHAR is only special inside a double quote if CHAR is
47 * one of: $`"\ and newline
49 if (quote_char
== '\"'){
50 if (!(c
== '$' || c
== '`' || c
== '"' || c
== '\\'))
51 g_string_append_c (str
, '\\');
52 g_string_append_c (str
, c
);
54 if (!g_ascii_isspace (c
))
55 g_string_append_c (str
, c
);
58 } else if (quote_char
) {
59 if (c
== quote_char
) {
61 if (fresh
&& (g_ascii_isspace (*ptr
) || *ptr
== '\0')){
62 g_ptr_array_add (array
, g_string_free (str
, FALSE
));
63 str
= g_string_new ("");
65 } else if (c
== '\\' && quote_char
== '\"'){
68 g_string_append_c (str
, c
);
69 } else if (g_ascii_isspace (c
)) {
71 g_ptr_array_add (array
, g_string_free (str
, FALSE
));
72 str
= g_string_new ("");
74 } else if (c
== '\\') {
76 } else if (c
== '\'' || c
== '"') {
77 fresh
= str
->len
== 0;
80 g_string_append_c (str
, c
);
86 *gerror
= g_error_new (G_LOG_DOMAIN
, 0, "Unfinished escape.");
87 g_string_free (str
, TRUE
);
93 *gerror
= g_error_new (G_LOG_DOMAIN
, 0, "Unfinished quote.");
94 g_string_free (str
, TRUE
);
99 g_ptr_array_add (array
, g_string_free (str
, FALSE
));
101 g_string_free (str
, TRUE
);
103 g_ptr_array_add (array
, NULL
);
108 g_shell_parse_argv (const gchar
*command_line
, gint
*argcp
, gchar
***argvp
, GError
**gerror
)
114 g_return_val_if_fail (command_line
, FALSE
);
115 g_return_val_if_fail (gerror
== NULL
|| *gerror
== NULL
, FALSE
);
117 array
= g_ptr_array_new();
118 if (split_cmdline (command_line
, array
, gerror
)) {
119 g_ptr_array_add (array
, NULL
);
120 g_strfreev ((gchar
**) array
->pdata
);
121 g_ptr_array_free (array
, FALSE
);
126 argv
= (gchar
**) array
->pdata
;
130 g_ptr_array_free (array
, FALSE
);
135 *argcp
= array
->len
- 1;
144 g_ptr_array_free (array
, FALSE
);
149 g_shell_quote (const gchar
*unquoted_string
)
151 GString
*result
= g_string_new ("'");
154 for (p
= unquoted_string
; *p
; p
++){
156 g_string_append (result
, "'\\'");
157 g_string_append_c (result
, *p
);
159 g_string_append_c (result
, '\'');
160 return g_string_free (result
, FALSE
);
164 g_shell_unquote (const gchar
*quoted_string
, GError
**gerror
)
170 if (quoted_string
== NULL
)
173 /* Quickly try to determine if we need to unquote or not */
174 for (p
= quoted_string
; *p
; p
++){
175 if (*p
== '\'' || *p
== '"' || *p
== '\\'){
182 return g_strdup (quoted_string
);
184 /* We do need to unquote */
185 result
= g_string_new ("");
186 for (p
= quoted_string
; *p
; p
++){
189 /* Process single quote, not even \ is processed by glib's version */
193 g_string_append_c (result
, *p
);
196 g_set_error (gerror
, 0, 0, "Open quote");
199 } else if (*p
== '"'){
200 /* Process double quote, allows some escaping */
207 g_set_error (gerror
, 0, 0, "Open quote");
217 g_string_append_c (result
, '\\');
221 g_string_append_c (result
, *p
);
224 g_set_error (gerror
, 0, 0, "Open quote");
227 } else if (*p
== '\\'){
229 if (!(c
== '$' || c
== '"' || c
== '\\' || c
== '`' || c
== '\'' || c
== 0 ))
230 g_string_append_c (result
, '\\');
234 g_string_append_c (result
, c
);
236 g_string_append_c (result
, *p
);
238 return g_string_free (result
, FALSE
);
243 * This test is designed to be built with the 2 glib/eglib to compare
254 "\"foo\" 'bar' \"baz\"",
259 "\"f\\$\"\\\"\\\\", // /\\\"\\\\"
273 char *r1
= g_shell_unquote (*s
, NULL
);
274 char *r2
= g2_shell_unquote (*s
, NULL
);
275 char *ok
= r1
== r2
? "ok" : (r1
!= NULL
&& r2
!= NULL
&& strcmp (r1
, r2
) == 0) ? "ok" : "fail";
277 printf ("%s [%s] -> [%s] - [%s]\n", ok
, *s
, r1
, r2
);
287 for (i
= 32; i
< 255; i
++){
289 printf ("%d [%s] -> [%s]\n", i
, buffer
, g_shell_unquote (buffer
, NULL
));