2 * Copyright © 2009, 2010 Codethink Limited
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the licence, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
19 * Author: Ryan Lortie <desrt@desrt.ca>
31 #include "gstrfuncs.h"
32 #include "gtestutils.h"
34 #include "gvarianttype.h"
40 * designed by ryan lortie and william hua
41 * designed in itb-229 and at ghazi's, 2009.
45 * G_VARIANT_PARSE_ERROR:
47 * Error domain for GVariant text format parsing. Specific error codes
48 * are not currently defined for this domain. See #GError for
49 * information on error domains.
53 * @G_VARIANT_PARSE_ERROR_FAILED: generic error (unused)
54 * @G_VARIANT_PARSE_ERROR_BASIC_TYPE_EXPECTED: a non-basic #GVariantType was given where a basic type was expected
55 * @G_VARIANT_PARSE_ERROR_CANNOT_INFER_TYPE: cannot infer the #GVariantType
56 * @G_VARIANT_PARSE_ERROR_DEFINITE_TYPE_EXPECTED: an indefinite #GVariantType was given where a definite type was expected
57 * @G_VARIANT_PARSE_ERROR_INPUT_NOT_AT_END: extra data after parsing finished
58 * @G_VARIANT_PARSE_ERROR_INVALID_CHARACTER: invalid character in number or unicode escape
59 * @G_VARIANT_PARSE_ERROR_INVALID_FORMAT_STRING: not a valid #GVariant format string
60 * @G_VARIANT_PARSE_ERROR_INVALID_OBJECT_PATH: not a valid object path
61 * @G_VARIANT_PARSE_ERROR_INVALID_SIGNATURE: not a valid type signature
62 * @G_VARIANT_PARSE_ERROR_INVALID_TYPE_STRING: not a valid #GVariant type string
63 * @G_VARIANT_PARSE_ERROR_NO_COMMON_TYPE: could not find a common type for array entries
64 * @G_VARIANT_PARSE_ERROR_NUMBER_OUT_OF_RANGE: the numerical value is out of range of the given type
65 * @G_VARIANT_PARSE_ERROR_NUMBER_TOO_BIG: the numerical value is out of range for any type
66 * @G_VARIANT_PARSE_ERROR_TYPE_ERROR: cannot parse as variant of the specified type
67 * @G_VARIANT_PARSE_ERROR_UNEXPECTED_TOKEN: an unexpected token was encountered
68 * @G_VARIANT_PARSE_ERROR_UNKNOWN_KEYWORD: an unknown keyword was encountered
69 * @G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT: unterminated string constant
70 * @G_VARIANT_PARSE_ERROR_VALUE_EXPECTED: no value given
72 * Error codes returned by parsing text-format GVariants.
74 G_DEFINE_QUARK (g-variant-parse-error-quark, g_variant_parser_get_error)
83 parser_set_error_va (GError **error,
90 GString *msg = g_string_new (NULL);
92 if (location->start == location->end)
93 g_string_append_printf (msg, "%d", location->start);
95 g_string_append_printf (msg, "%d-%d", location->start, location->end);
99 g_assert (other->start != other->end);
100 g_string_append_printf (msg, ",%d-%d", other->start, other->end);
102 g_string_append_c (msg, ':');
104 g_string_append_vprintf (msg, format, ap);
105 g_set_error_literal (error, G_VARIANT_PARSE_ERROR, code, msg->str);
106 g_string_free (msg, TRUE);
111 parser_set_error (GError **error,
120 va_start (ap, format);
121 parser_set_error_va (error, location, other, code, format, ap);
137 token_stream_set_error (TokenStream *stream,
147 ref.start = stream->this - stream->start;
150 ref.end = stream->stream - stream->start;
154 va_start (ap, format);
155 parser_set_error_va (error, &ref, NULL, code, format, ap);
160 token_stream_prepare (TokenStream *stream)
165 if (stream->this != NULL)
168 while (stream->stream != stream->end && g_ascii_isspace (*stream->stream))
171 if (stream->stream == stream->end || *stream->stream == '\0')
173 stream->this = stream->stream;
177 switch (stream->stream[0])
179 case '-': case '+': case '.': case '0': case '1': case '2':
180 case '3': case '4': case '5': case '6': case '7': case '8':
182 for (end = stream->stream; end != stream->end; end++)
183 if (!g_ascii_isalnum (*end) &&
184 *end != '-' && *end != '+' && *end != '.')
189 if (stream->stream[1] == '\'' || stream->stream[1] == '"')
191 for (end = stream->stream + 2; end != stream->end; end++)
192 if (*end == stream->stream[1] || *end == '\0' ||
193 (*end == '\\' && (++end == stream->end || *end == '\0')))
196 if (end != stream->end && *end)
203 case 'a': /* 'b' */ case 'c': case 'd': case 'e': case 'f':
204 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
205 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
206 case 's': case 't': case 'u': case 'v': case 'w': case 'x':
208 for (end = stream->stream; end != stream->end; end++)
209 if (!g_ascii_isalnum (*end))
214 for (end = stream->stream + 1; end != stream->end; end++)
215 if (*end == stream->stream[0] || *end == '\0' ||
216 (*end == '\\' && (++end == stream->end || *end == '\0')))
219 if (end != stream->end && *end)
224 /* stop at the first space, comma, colon or unmatched bracket.
225 * deals nicely with cases like (%i, %i) or {%i: %i}.
226 * Also: ] and > are never in format strings.
228 for (end = stream->stream + 1;
229 end != stream->end && *end != ',' &&
230 *end != ':' && *end != '>' && *end != ']' && !g_ascii_isspace (*end);
233 if (*end == '(' || *end == '{')
236 else if ((*end == ')' || *end == '}') && !brackets--)
242 end = stream->stream + 1;
246 stream->this = stream->stream;
247 stream->stream = end;
253 token_stream_next (TokenStream *stream)
259 token_stream_peek (TokenStream *stream,
262 if (!token_stream_prepare (stream))
265 return stream->this[0] == first_char;
269 token_stream_peek2 (TokenStream *stream,
273 if (!token_stream_prepare (stream))
276 return stream->this[0] == first_char &&
277 stream->this[1] == second_char;
281 token_stream_is_keyword (TokenStream *stream)
283 if (!token_stream_prepare (stream))
286 return g_ascii_isalpha (stream->this[0]) &&
287 g_ascii_isalpha (stream->this[1]);
291 token_stream_is_numeric (TokenStream *stream)
293 if (!token_stream_prepare (stream))
296 return (g_ascii_isdigit (stream->this[0]) ||
297 stream->this[0] == '-' ||
298 stream->this[0] == '+' ||
299 stream->this[0] == '.');
303 token_stream_peek_string (TokenStream *stream,
306 gint length = strlen (token);
308 return token_stream_prepare (stream) &&
309 stream->stream - stream->this == length &&
310 memcmp (stream->this, token, length) == 0;
314 token_stream_consume (TokenStream *stream,
317 if (!token_stream_peek_string (stream, token))
320 token_stream_next (stream);
325 token_stream_require (TokenStream *stream,
327 const gchar *purpose,
331 if (!token_stream_consume (stream, token))
333 token_stream_set_error (stream, error, FALSE,
334 G_VARIANT_PARSE_ERROR_UNEXPECTED_TOKEN,
335 "expected '%s'%s", token, purpose);
343 token_stream_assert (TokenStream *stream,
346 gboolean correct_token;
348 correct_token = token_stream_consume (stream, token);
349 g_assert (correct_token);
353 token_stream_get (TokenStream *stream)
357 if (!token_stream_prepare (stream))
360 result = g_strndup (stream->this, stream->stream - stream->this);
366 token_stream_start_ref (TokenStream *stream,
369 token_stream_prepare (stream);
370 ref->start = stream->this - stream->start;
374 token_stream_end_ref (TokenStream *stream,
377 ref->end = stream->stream - stream->start;
381 pattern_copy (gchar **out,
386 while (**in == 'a' || **in == 'm' || **in == 'M')
387 *(*out)++ = *(*in)++;
391 if (**in == '(' || **in == '{')
394 else if (**in == ')' || **in == '}')
397 *(*out)++ = *(*in)++;
403 pattern_coalesce (const gchar *left,
409 /* the length of the output is loosely bound by the sum of the input
410 * lengths, not simply the greater of the two lengths.
412 * (*(iii)) + ((iii)*) ((iii)(iii))
416 out = result = g_malloc (strlen (left) + strlen (right));
418 while (*left && *right)
428 const gchar **one = &left, **the_other = &right;
431 if (**one == '*' && **the_other != ')')
433 pattern_copy (&out, the_other);
437 else if (**one == 'M' && **the_other == 'm')
439 *out++ = *(*the_other)++;
442 else if (**one == 'M' && **the_other != 'm')
447 else if (**one == 'N' && strchr ("ynqiuxthd", **the_other))
449 *out++ = *(*the_other)++;
453 else if (**one == 'S' && strchr ("sog", **the_other))
455 *out++ = *(*the_other)++;
459 else if (one == &left)
461 one = &right, the_other = &left;
481 typedef struct _AST AST;
482 typedef gchar * (*get_pattern_func) (AST *ast,
484 typedef GVariant * (*get_value_func) (AST *ast,
485 const GVariantType *type,
487 typedef GVariant * (*get_base_value_func) (AST *ast,
488 const GVariantType *type,
490 typedef void (*free_func) (AST *ast);
494 gchar * (* get_pattern) (AST *ast,
496 GVariant * (* get_value) (AST *ast,
497 const GVariantType *type,
499 GVariant * (* get_base_value) (AST *ast,
500 const GVariantType *type,
502 void (* free) (AST *ast);
507 const ASTClass *class;
508 SourceRef source_ref;
512 ast_get_pattern (AST *ast,
515 return ast->class->get_pattern (ast, error);
519 ast_get_value (AST *ast,
520 const GVariantType *type,
523 return ast->class->get_value (ast, type, error);
529 ast->class->free (ast);
534 ast_set_error (AST *ast,
543 va_start (ap, format);
544 parser_set_error_va (error, &ast->source_ref,
545 other_ast ? & other_ast->source_ref : NULL,
552 ast_type_error (AST *ast,
553 const GVariantType *type,
558 typestr = g_variant_type_dup_string (type);
559 ast_set_error (ast, error, NULL,
560 G_VARIANT_PARSE_ERROR_TYPE_ERROR,
561 "can not parse as value of type '%s'",
569 ast_resolve (AST *ast,
576 pattern = ast_get_pattern (ast, error);
581 /* choose reasonable defaults
583 * 1) favour non-maybe values where possible
584 * 2) default type for strings is 's'
585 * 3) default type for integers is 'i'
587 for (i = 0; pattern[i]; i++)
591 ast_set_error (ast, error, NULL,
592 G_VARIANT_PARSE_ERROR_CANNOT_INFER_TYPE,
593 "unable to infer type");
609 pattern[j++] = pattern[i];
614 value = ast_get_value (ast, G_VARIANT_TYPE (pattern), error);
621 static AST *parse (TokenStream *stream,
626 ast_array_append (AST ***array,
630 if ((*n_items & (*n_items - 1)) == 0)
631 *array = g_renew (AST *, *array, *n_items ? 2 ** n_items : 1);
633 (*array)[(*n_items)++] = ast;
637 ast_array_free (AST **array,
642 for (i = 0; i < n_items; i++)
648 ast_array_get_pattern (AST **array,
655 pattern = ast_get_pattern (array[0], error);
660 for (i = 1; i < n_items; i++)
664 tmp = ast_get_pattern (array[i], error);
672 merged = pattern_coalesce (pattern, tmp);
677 /* set coalescence implies pairwise coalescence (i think).
678 * we should therefore be able to trace the failure to a single
689 /* if 'j' reaches 'i' then we failed to find the pair */
692 tmp2 = ast_get_pattern (array[j], NULL);
693 g_assert (tmp2 != NULL);
695 m = pattern_coalesce (tmp, tmp2);
701 /* we found a conflict between 'i' and 'j'.
703 * report the error. note: 'j' is first.
705 ast_set_error (array[j], error, array[i],
706 G_VARIANT_PARSE_ERROR_NO_COMMON_TYPE,
707 "unable to find a common type");
731 maybe_get_pattern (AST *ast,
734 Maybe *maybe = (Maybe *) ast;
736 if (maybe->child != NULL)
738 gchar *child_pattern;
741 child_pattern = ast_get_pattern (maybe->child, error);
743 if (child_pattern == NULL)
746 pattern = g_strdup_printf ("m%s", child_pattern);
747 g_free (child_pattern);
752 return g_strdup ("m*");
756 maybe_get_value (AST *ast,
757 const GVariantType *type,
760 Maybe *maybe = (Maybe *) ast;
763 if (!g_variant_type_is_maybe (type))
764 return ast_type_error (ast, type, error);
766 type = g_variant_type_element (type);
770 value = ast_get_value (maybe->child, type, error);
778 return g_variant_new_maybe (type, value);
782 maybe_free (AST *ast)
784 Maybe *maybe = (Maybe *) ast;
786 if (maybe->child != NULL)
787 ast_free (maybe->child);
789 g_slice_free (Maybe, maybe);
793 maybe_parse (TokenStream *stream,
797 static const ASTClass maybe_class = {
799 maybe_get_value, NULL,
805 if (token_stream_consume (stream, "just"))
807 child = parse (stream, app, error);
812 else if (!token_stream_consume (stream, "nothing"))
814 token_stream_set_error (stream, error, TRUE,
815 G_VARIANT_PARSE_ERROR_UNKNOWN_KEYWORD,
820 maybe = g_slice_new (Maybe);
821 maybe->ast.class = &maybe_class;
822 maybe->child = child;
824 return (AST *) maybe;
828 maybe_wrapper (AST *ast,
829 const GVariantType *type,
832 const GVariantType *t;
836 for (depth = 0, t = type;
837 g_variant_type_is_maybe (t);
838 depth++, t = g_variant_type_element (t));
840 value = ast->class->get_base_value (ast, t, error);
846 value = g_variant_new_maybe (NULL, value);
860 array_get_pattern (AST *ast,
863 Array *array = (Array *) ast;
867 if (array->n_children == 0)
868 return g_strdup ("Ma*");
870 pattern = ast_array_get_pattern (array->children, array->n_children, error);
875 result = g_strdup_printf ("Ma%s", pattern);
882 array_get_value (AST *ast,
883 const GVariantType *type,
886 Array *array = (Array *) ast;
887 const GVariantType *childtype;
888 GVariantBuilder builder;
891 if (!g_variant_type_is_array (type))
892 return ast_type_error (ast, type, error);
894 g_variant_builder_init (&builder, type);
895 childtype = g_variant_type_element (type);
897 for (i = 0; i < array->n_children; i++)
901 if (!(child = ast_get_value (array->children[i], childtype, error)))
903 g_variant_builder_clear (&builder);
907 g_variant_builder_add_value (&builder, child);
910 return g_variant_builder_end (&builder);
914 array_free (AST *ast)
916 Array *array = (Array *) ast;
918 ast_array_free (array->children, array->n_children);
919 g_slice_free (Array, array);
923 array_parse (TokenStream *stream,
927 static const ASTClass array_class = {
929 maybe_wrapper, array_get_value,
932 gboolean need_comma = FALSE;
935 array = g_slice_new (Array);
936 array->ast.class = &array_class;
937 array->children = NULL;
938 array->n_children = 0;
940 token_stream_assert (stream, "[");
941 while (!token_stream_consume (stream, "]"))
946 !token_stream_require (stream, ",",
947 " or ']' to follow array element",
951 child = parse (stream, app, error);
956 ast_array_append (&array->children, &array->n_children, child);
960 return (AST *) array;
963 ast_array_free (array->children, array->n_children);
964 g_slice_free (Array, array);
978 tuple_get_pattern (AST *ast,
981 Tuple *tuple = (Tuple *) ast;
982 gchar *result = NULL;
986 parts = g_new (gchar *, tuple->n_children + 4);
987 parts[tuple->n_children + 1] = (gchar *) ")";
988 parts[tuple->n_children + 2] = NULL;
989 parts[0] = (gchar *) "M(";
991 for (i = 0; i < tuple->n_children; i++)
992 if (!(parts[i + 1] = ast_get_pattern (tuple->children[i], error)))
995 if (i == tuple->n_children)
996 result = g_strjoinv ("", parts);
998 /* parts[0] should not be freed */
1000 g_free (parts[i--]);
1007 tuple_get_value (AST *ast,
1008 const GVariantType *type,
1011 Tuple *tuple = (Tuple *) ast;
1012 const GVariantType *childtype;
1013 GVariantBuilder builder;
1016 if (!g_variant_type_is_tuple (type))
1017 return ast_type_error (ast, type, error);
1019 g_variant_builder_init (&builder, type);
1020 childtype = g_variant_type_first (type);
1022 for (i = 0; i < tuple->n_children; i++)
1026 if (childtype == NULL)
1028 g_variant_builder_clear (&builder);
1029 return ast_type_error (ast, type, error);
1032 if (!(child = ast_get_value (tuple->children[i], childtype, error)))
1034 g_variant_builder_clear (&builder);
1038 g_variant_builder_add_value (&builder, child);
1039 childtype = g_variant_type_next (childtype);
1042 if (childtype != NULL)
1044 g_variant_builder_clear (&builder);
1045 return ast_type_error (ast, type, error);
1048 return g_variant_builder_end (&builder);
1052 tuple_free (AST *ast)
1054 Tuple *tuple = (Tuple *) ast;
1056 ast_array_free (tuple->children, tuple->n_children);
1057 g_slice_free (Tuple, tuple);
1061 tuple_parse (TokenStream *stream,
1065 static const ASTClass tuple_class = {
1067 maybe_wrapper, tuple_get_value,
1070 gboolean need_comma = FALSE;
1071 gboolean first = TRUE;
1074 tuple = g_slice_new (Tuple);
1075 tuple->ast.class = &tuple_class;
1076 tuple->children = NULL;
1077 tuple->n_children = 0;
1079 token_stream_assert (stream, "(");
1080 while (!token_stream_consume (stream, ")"))
1085 !token_stream_require (stream, ",",
1086 " or ')' to follow tuple element",
1090 child = parse (stream, app, error);
1095 ast_array_append (&tuple->children, &tuple->n_children, child);
1097 /* the first time, we absolutely require a comma, so grab it here
1098 * and leave need_comma = FALSE so that the code above doesn't
1099 * require a second comma.
1101 * the second and remaining times, we set need_comma = TRUE.
1105 if (!token_stream_require (stream, ",",
1106 " after first tuple element", error))
1115 return (AST *) tuple;
1118 ast_array_free (tuple->children, tuple->n_children);
1119 g_slice_free (Tuple, tuple);
1132 variant_get_pattern (AST *ast,
1135 return g_strdup ("Mv");
1139 variant_get_value (AST *ast,
1140 const GVariantType *type,
1143 Variant *variant = (Variant *) ast;
1146 if (!g_variant_type_equal (type, G_VARIANT_TYPE_VARIANT))
1147 return ast_type_error (ast, type, error);
1149 child = ast_resolve (variant->value, error);
1154 return g_variant_new_variant (child);
1158 variant_free (AST *ast)
1160 Variant *variant = (Variant *) ast;
1162 ast_free (variant->value);
1163 g_slice_free (Variant, variant);
1167 variant_parse (TokenStream *stream,
1171 static const ASTClass variant_class = {
1172 variant_get_pattern,
1173 maybe_wrapper, variant_get_value,
1179 token_stream_assert (stream, "<");
1180 value = parse (stream, app, error);
1185 if (!token_stream_require (stream, ">", " to follow variant value", error))
1191 variant = g_slice_new (Variant);
1192 variant->ast.class = &variant_class;
1193 variant->value = value;
1195 return (AST *) variant;
1208 dictionary_get_pattern (AST *ast,
1211 Dictionary *dict = (Dictionary *) ast;
1212 gchar *value_pattern;
1217 if (dict->n_children == 0)
1218 return g_strdup ("Ma{**}");
1220 key_pattern = ast_array_get_pattern (dict->keys,
1221 abs (dict->n_children),
1224 if (key_pattern == NULL)
1227 /* we can not have maybe keys */
1228 if (key_pattern[0] == 'M')
1229 key_char = key_pattern[1];
1231 key_char = key_pattern[0];
1233 g_free (key_pattern);
1236 * plus undetermined number type and undetermined string type.
1238 if (!strchr ("bynqiuxthdsogNS", key_char))
1240 ast_set_error (ast, error, NULL,
1241 G_VARIANT_PARSE_ERROR_BASIC_TYPE_EXPECTED,
1242 "dictionary keys must have basic types");
1246 value_pattern = ast_get_pattern (dict->values[0], error);
1248 if (value_pattern == NULL)
1251 result = g_strdup_printf ("M%s{%c%s}",
1252 dict->n_children > 0 ? "a" : "",
1253 key_char, value_pattern);
1254 g_free (value_pattern);
1260 dictionary_get_value (AST *ast,
1261 const GVariantType *type,
1264 Dictionary *dict = (Dictionary *) ast;
1266 if (dict->n_children == -1)
1268 const GVariantType *subtype;
1269 GVariantBuilder builder;
1272 if (!g_variant_type_is_dict_entry (type))
1273 return ast_type_error (ast, type, error);
1275 g_variant_builder_init (&builder, type);
1277 subtype = g_variant_type_key (type);
1278 if (!(subvalue = ast_get_value (dict->keys[0], subtype, error)))
1280 g_variant_builder_clear (&builder);
1283 g_variant_builder_add_value (&builder, subvalue);
1285 subtype = g_variant_type_value (type);
1286 if (!(subvalue = ast_get_value (dict->values[0], subtype, error)))
1288 g_variant_builder_clear (&builder);
1291 g_variant_builder_add_value (&builder, subvalue);
1293 return g_variant_builder_end (&builder);
1297 const GVariantType *entry, *key, *val;
1298 GVariantBuilder builder;
1301 if (!g_variant_type_is_subtype_of (type, G_VARIANT_TYPE_DICTIONARY))
1302 return ast_type_error (ast, type, error);
1304 entry = g_variant_type_element (type);
1305 key = g_variant_type_key (entry);
1306 val = g_variant_type_value (entry);
1308 g_variant_builder_init (&builder, type);
1310 for (i = 0; i < dict->n_children; i++)
1314 g_variant_builder_open (&builder, entry);
1316 if (!(subvalue = ast_get_value (dict->keys[i], key, error)))
1318 g_variant_builder_clear (&builder);
1321 g_variant_builder_add_value (&builder, subvalue);
1323 if (!(subvalue = ast_get_value (dict->values[i], val, error)))
1325 g_variant_builder_clear (&builder);
1328 g_variant_builder_add_value (&builder, subvalue);
1329 g_variant_builder_close (&builder);
1332 return g_variant_builder_end (&builder);
1337 dictionary_free (AST *ast)
1339 Dictionary *dict = (Dictionary *) ast;
1342 if (dict->n_children > -1)
1343 n_children = dict->n_children;
1347 ast_array_free (dict->keys, n_children);
1348 ast_array_free (dict->values, n_children);
1349 g_slice_free (Dictionary, dict);
1353 dictionary_parse (TokenStream *stream,
1357 static const ASTClass dictionary_class = {
1358 dictionary_get_pattern,
1359 maybe_wrapper, dictionary_get_value,
1362 gint n_keys, n_values;
1367 dict = g_slice_new (Dictionary);
1368 dict->ast.class = &dictionary_class;
1370 dict->values = NULL;
1371 n_keys = n_values = 0;
1373 token_stream_assert (stream, "{");
1375 if (token_stream_consume (stream, "}"))
1377 dict->n_children = 0;
1378 return (AST *) dict;
1381 if ((first = parse (stream, app, error)) == NULL)
1384 ast_array_append (&dict->keys, &n_keys, first);
1386 only_one = token_stream_consume (stream, ",");
1388 !token_stream_require (stream, ":",
1389 " or ',' to follow dictionary entry key",
1393 if ((first = parse (stream, app, error)) == NULL)
1396 ast_array_append (&dict->values, &n_values, first);
1400 if (!token_stream_require (stream, "}", " at end of dictionary entry",
1404 g_assert (n_keys == 1 && n_values == 1);
1405 dict->n_children = -1;
1407 return (AST *) dict;
1410 while (!token_stream_consume (stream, "}"))
1414 if (!token_stream_require (stream, ",",
1415 " or '}' to follow dictionary entry", error))
1418 child = parse (stream, app, error);
1423 ast_array_append (&dict->keys, &n_keys, child);
1425 if (!token_stream_require (stream, ":",
1426 " to follow dictionary entry key", error))
1429 child = parse (stream, app, error);
1434 ast_array_append (&dict->values, &n_values, child);
1437 g_assert (n_keys == n_values);
1438 dict->n_children = n_keys;
1440 return (AST *) dict;
1443 ast_array_free (dict->keys, n_keys);
1444 ast_array_free (dict->values, n_values);
1445 g_slice_free (Dictionary, dict);
1457 string_get_pattern (AST *ast,
1460 return g_strdup ("MS");
1464 string_get_value (AST *ast,
1465 const GVariantType *type,
1468 String *string = (String *) ast;
1470 if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
1471 return g_variant_new_string (string->string);
1473 else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
1475 if (!g_variant_is_object_path (string->string))
1477 ast_set_error (ast, error, NULL,
1478 G_VARIANT_PARSE_ERROR_INVALID_OBJECT_PATH,
1479 "not a valid object path");
1483 return g_variant_new_object_path (string->string);
1486 else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
1488 if (!g_variant_is_signature (string->string))
1490 ast_set_error (ast, error, NULL,
1491 G_VARIANT_PARSE_ERROR_INVALID_SIGNATURE,
1492 "not a valid signature");
1496 return g_variant_new_signature (string->string);
1500 return ast_type_error (ast, type, error);
1504 string_free (AST *ast)
1506 String *string = (String *) ast;
1508 g_free (string->string);
1509 g_slice_free (String, string);
1513 unicode_unescape (const gchar *src,
1527 g_assert (length < sizeof (buffer));
1528 strncpy (buffer, src + *src_ofs, length);
1529 buffer[length] = '\0';
1531 value = g_ascii_strtoull (buffer, &end, 0x10);
1533 if (value == 0 || end != buffer + length)
1535 parser_set_error (error, ref, NULL,
1536 G_VARIANT_PARSE_ERROR_INVALID_CHARACTER,
1537 "invalid %d-character unicode escape", length);
1541 g_assert (value <= G_MAXUINT32);
1543 *dest_ofs += g_unichar_to_utf8 (value, dest + *dest_ofs);
1550 string_parse (TokenStream *stream,
1554 static const ASTClass string_class = {
1556 maybe_wrapper, string_get_value,
1567 token_stream_start_ref (stream, &ref);
1568 token = token_stream_get (stream);
1569 token_stream_end_ref (stream, &ref);
1570 length = strlen (token);
1573 str = g_malloc (length);
1574 g_assert (quote == '"' || quote == '\'');
1577 while (token[i] != quote)
1581 parser_set_error (error, &ref, NULL,
1582 G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT,
1583 "unterminated string constant");
1592 parser_set_error (error, &ref, NULL,
1593 G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT,
1594 "unterminated string constant");
1600 if (!unicode_unescape (token, &i, str, &j, 4, &ref, error))
1609 if (!unicode_unescape (token, &i, str, &j, 8, &ref, error))
1617 case 'a': str[j++] = '\a'; i++; continue;
1618 case 'b': str[j++] = '\b'; i++; continue;
1619 case 'f': str[j++] = '\f'; i++; continue;
1620 case 'n': str[j++] = '\n'; i++; continue;
1621 case 'r': str[j++] = '\r'; i++; continue;
1622 case 't': str[j++] = '\t'; i++; continue;
1623 case 'v': str[j++] = '\v'; i++; continue;
1624 case '\n': i++; continue;
1628 str[j++] = token[i++];
1633 string = g_slice_new (String);
1634 string->ast.class = &string_class;
1635 string->string = str;
1637 token_stream_next (stream);
1639 return (AST *) string;
1649 bytestring_get_pattern (AST *ast,
1652 return g_strdup ("May");
1656 bytestring_get_value (AST *ast,
1657 const GVariantType *type,
1660 ByteString *string = (ByteString *) ast;
1662 if (!g_variant_type_equal (type, G_VARIANT_TYPE_BYTESTRING))
1663 return ast_type_error (ast, type, error);
1665 return g_variant_new_bytestring (string->string);
1669 bytestring_free (AST *ast)
1671 ByteString *string = (ByteString *) ast;
1673 g_free (string->string);
1674 g_slice_free (ByteString, string);
1678 bytestring_parse (TokenStream *stream,
1682 static const ASTClass bytestring_class = {
1683 bytestring_get_pattern,
1684 maybe_wrapper, bytestring_get_value,
1695 token_stream_start_ref (stream, &ref);
1696 token = token_stream_get (stream);
1697 token_stream_end_ref (stream, &ref);
1698 g_assert (token[0] == 'b');
1699 length = strlen (token);
1702 str = g_malloc (length);
1703 g_assert (quote == '"' || quote == '\'');
1706 while (token[i] != quote)
1710 parser_set_error (error, &ref, NULL,
1711 G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT,
1712 "unterminated string constant");
1720 parser_set_error (error, &ref, NULL,
1721 G_VARIANT_PARSE_ERROR_UNTERMINATED_STRING_CONSTANT,
1722 "unterminated string constant");
1726 case '0': case '1': case '2': case '3':
1727 case '4': case '5': case '6': case '7':
1729 /* up to 3 characters */
1730 guchar val = token[i++] - '0';
1732 if ('0' <= token[i] && token[i] < '8')
1733 val = (val << 3) | (token[i++] - '0');
1735 if ('0' <= token[i] && token[i] < '8')
1736 val = (val << 3) | (token[i++] - '0');
1742 case 'a': str[j++] = '\a'; i++; continue;
1743 case 'b': str[j++] = '\b'; i++; continue;
1744 case 'f': str[j++] = '\f'; i++; continue;
1745 case 'n': str[j++] = '\n'; i++; continue;
1746 case 'r': str[j++] = '\r'; i++; continue;
1747 case 't': str[j++] = '\t'; i++; continue;
1748 case 'v': str[j++] = '\v'; i++; continue;
1749 case '\n': i++; continue;
1753 str[j++] = token[i++];
1758 string = g_slice_new (ByteString);
1759 string->ast.class = &bytestring_class;
1760 string->string = str;
1762 token_stream_next (stream);
1764 return (AST *) string;
1775 number_get_pattern (AST *ast,
1778 Number *number = (Number *) ast;
1780 if (strchr (number->token, '.') ||
1781 (!g_str_has_prefix (number->token, "0x") && strchr (number->token, 'e')) ||
1782 strstr (number->token, "inf") ||
1783 strstr (number->token, "nan"))
1784 return g_strdup ("Md");
1786 return g_strdup ("MN");
1790 number_overflow (AST *ast,
1791 const GVariantType *type,
1794 ast_set_error (ast, error, NULL,
1795 G_VARIANT_PARSE_ERROR_NUMBER_OUT_OF_RANGE,
1796 "number out of range for type '%c'",
1797 g_variant_type_peek_string (type)[0]);
1802 number_get_value (AST *ast,
1803 const GVariantType *type,
1806 Number *number = (Number *) ast;
1814 token = number->token;
1816 if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
1821 dbl_val = g_ascii_strtod (token, &end);
1822 if (dbl_val != 0.0 && errno == ERANGE)
1824 ast_set_error (ast, error, NULL,
1825 G_VARIANT_PARSE_ERROR_NUMBER_TOO_BIG,
1826 "number too big for any type");
1830 /* silence uninitialised warnings... */
1837 negative = token[0] == '-';
1838 if (token[0] == '-')
1842 abs_val = g_ascii_strtoull (token, &end, 0);
1843 if (abs_val == G_MAXUINT64 && errno == ERANGE)
1845 ast_set_error (ast, error, NULL,
1846 G_VARIANT_PARSE_ERROR_NUMBER_TOO_BIG,
1847 "integer too big for any type");
1854 /* silence uninitialised warning... */
1862 ref = ast->source_ref;
1863 ref.start += end - number->token;
1864 ref.end = ref.start + 1;
1866 parser_set_error (error, &ref, NULL,
1867 G_VARIANT_PARSE_ERROR_INVALID_CHARACTER,
1868 "invalid character in number");
1873 return g_variant_new_double (dbl_val);
1875 switch (*g_variant_type_peek_string (type))
1878 if (negative || abs_val > G_MAXUINT8)
1879 return number_overflow (ast, type, error);
1880 return g_variant_new_byte (abs_val);
1883 if (abs_val - negative > G_MAXINT16)
1884 return number_overflow (ast, type, error);
1885 return g_variant_new_int16 (negative ? -abs_val : abs_val);
1888 if (negative || abs_val > G_MAXUINT16)
1889 return number_overflow (ast, type, error);
1890 return g_variant_new_uint16 (abs_val);
1893 if (abs_val - negative > G_MAXINT32)
1894 return number_overflow (ast, type, error);
1895 return g_variant_new_int32 (negative ? -abs_val : abs_val);
1898 if (negative || abs_val > G_MAXUINT32)
1899 return number_overflow (ast, type, error);
1900 return g_variant_new_uint32 (abs_val);
1903 if (abs_val - negative > G_MAXINT64)
1904 return number_overflow (ast, type, error);
1905 return g_variant_new_int64 (negative ? -abs_val : abs_val);
1909 return number_overflow (ast, type, error);
1910 return g_variant_new_uint64 (abs_val);
1913 if (abs_val - negative > G_MAXINT32)
1914 return number_overflow (ast, type, error);
1915 return g_variant_new_handle (negative ? -abs_val : abs_val);
1918 return ast_type_error (ast, type, error);
1923 number_free (AST *ast)
1925 Number *number = (Number *) ast;
1927 g_free (number->token);
1928 g_slice_free (Number, number);
1932 number_parse (TokenStream *stream,
1936 static const ASTClass number_class = {
1938 maybe_wrapper, number_get_value,
1943 number = g_slice_new (Number);
1944 number->ast.class = &number_class;
1945 number->token = token_stream_get (stream);
1946 token_stream_next (stream);
1948 return (AST *) number;
1958 boolean_get_pattern (AST *ast,
1961 return g_strdup ("Mb");
1965 boolean_get_value (AST *ast,
1966 const GVariantType *type,
1969 Boolean *boolean = (Boolean *) ast;
1971 if (!g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
1972 return ast_type_error (ast, type, error);
1974 return g_variant_new_boolean (boolean->value);
1978 boolean_free (AST *ast)
1980 Boolean *boolean = (Boolean *) ast;
1982 g_slice_free (Boolean, boolean);
1986 boolean_new (gboolean value)
1988 static const ASTClass boolean_class = {
1989 boolean_get_pattern,
1990 maybe_wrapper, boolean_get_value,
1995 boolean = g_slice_new (Boolean);
1996 boolean->ast.class = &boolean_class;
1997 boolean->value = value;
1999 return (AST *) boolean;
2010 positional_get_pattern (AST *ast,
2013 Positional *positional = (Positional *) ast;
2015 return g_strdup (g_variant_get_type_string (positional->value));
2019 positional_get_value (AST *ast,
2020 const GVariantType *type,
2023 Positional *positional = (Positional *) ast;
2026 g_assert (positional->value != NULL);
2028 if G_UNLIKELY (!g_variant_is_of_type (positional->value, type))
2029 return ast_type_error (ast, type, error);
2031 /* NOTE: if _get is called more than once then
2032 * things get messed up with respect to floating refs.
2034 * fortunately, this function should only ever get called once.
2036 g_assert (positional->value != NULL);
2037 value = positional->value;
2038 positional->value = NULL;
2044 positional_free (AST *ast)
2046 Positional *positional = (Positional *) ast;
2048 /* if positional->value is set, just leave it.
2049 * memory management doesn't matter in case of programmer error.
2051 g_slice_free (Positional, positional);
2055 positional_parse (TokenStream *stream,
2059 static const ASTClass positional_class = {
2060 positional_get_pattern,
2061 positional_get_value, NULL,
2064 Positional *positional;
2065 const gchar *endptr;
2068 token = token_stream_get (stream);
2069 g_assert (token[0] == '%');
2071 positional = g_slice_new (Positional);
2072 positional->ast.class = &positional_class;
2073 positional->value = g_variant_new_va (token + 1, &endptr, app);
2075 if (*endptr || positional->value == NULL)
2077 token_stream_set_error (stream, error, TRUE,
2078 G_VARIANT_PARSE_ERROR_INVALID_FORMAT_STRING,
2079 "invalid GVariant format string");
2080 /* memory management doesn't matter in case of programmer error. */
2084 token_stream_next (stream);
2087 return (AST *) positional;
2099 typedecl_get_pattern (AST *ast,
2102 TypeDecl *decl = (TypeDecl *) ast;
2104 return g_variant_type_dup_string (decl->type);
2108 typedecl_get_value (AST *ast,
2109 const GVariantType *type,
2112 TypeDecl *decl = (TypeDecl *) ast;
2114 return ast_get_value (decl->child, type, error);
2118 typedecl_free (AST *ast)
2120 TypeDecl *decl = (TypeDecl *) ast;
2122 ast_free (decl->child);
2123 g_variant_type_free (decl->type);
2124 g_slice_free (TypeDecl, decl);
2128 typedecl_parse (TokenStream *stream,
2132 static const ASTClass typedecl_class = {
2133 typedecl_get_pattern,
2134 typedecl_get_value, NULL,
2141 if (token_stream_peek (stream, '@'))
2145 token = token_stream_get (stream);
2147 if (!g_variant_type_string_is_valid (token + 1))
2149 token_stream_set_error (stream, error, TRUE,
2150 G_VARIANT_PARSE_ERROR_INVALID_TYPE_STRING,
2151 "invalid type declaration");
2157 type = g_variant_type_new (token + 1);
2159 if (!g_variant_type_is_definite (type))
2161 token_stream_set_error (stream, error, TRUE,
2162 G_VARIANT_PARSE_ERROR_DEFINITE_TYPE_EXPECTED,
2163 "type declarations must be definite");
2164 g_variant_type_free (type);
2170 token_stream_next (stream);
2175 if (token_stream_consume (stream, "boolean"))
2176 type = g_variant_type_copy (G_VARIANT_TYPE_BOOLEAN);
2178 else if (token_stream_consume (stream, "byte"))
2179 type = g_variant_type_copy (G_VARIANT_TYPE_BYTE);
2181 else if (token_stream_consume (stream, "int16"))
2182 type = g_variant_type_copy (G_VARIANT_TYPE_INT16);
2184 else if (token_stream_consume (stream, "uint16"))
2185 type = g_variant_type_copy (G_VARIANT_TYPE_UINT16);
2187 else if (token_stream_consume (stream, "int32"))
2188 type = g_variant_type_copy (G_VARIANT_TYPE_INT32);
2190 else if (token_stream_consume (stream, "handle"))
2191 type = g_variant_type_copy (G_VARIANT_TYPE_HANDLE);
2193 else if (token_stream_consume (stream, "uint32"))
2194 type = g_variant_type_copy (G_VARIANT_TYPE_UINT32);
2196 else if (token_stream_consume (stream, "int64"))
2197 type = g_variant_type_copy (G_VARIANT_TYPE_INT64);
2199 else if (token_stream_consume (stream, "uint64"))
2200 type = g_variant_type_copy (G_VARIANT_TYPE_UINT64);
2202 else if (token_stream_consume (stream, "double"))
2203 type = g_variant_type_copy (G_VARIANT_TYPE_DOUBLE);
2205 else if (token_stream_consume (stream, "string"))
2206 type = g_variant_type_copy (G_VARIANT_TYPE_STRING);
2208 else if (token_stream_consume (stream, "objectpath"))
2209 type = g_variant_type_copy (G_VARIANT_TYPE_OBJECT_PATH);
2211 else if (token_stream_consume (stream, "signature"))
2212 type = g_variant_type_copy (G_VARIANT_TYPE_SIGNATURE);
2216 token_stream_set_error (stream, error, TRUE,
2217 G_VARIANT_PARSE_ERROR_UNKNOWN_KEYWORD,
2223 if ((child = parse (stream, app, error)) == NULL)
2225 g_variant_type_free (type);
2229 decl = g_slice_new (TypeDecl);
2230 decl->ast.class = &typedecl_class;
2232 decl->child = child;
2234 return (AST *) decl;
2238 parse (TokenStream *stream,
2242 SourceRef source_ref;
2245 token_stream_prepare (stream);
2246 token_stream_start_ref (stream, &source_ref);
2248 if (token_stream_peek (stream, '['))
2249 result = array_parse (stream, app, error);
2251 else if (token_stream_peek (stream, '('))
2252 result = tuple_parse (stream, app, error);
2254 else if (token_stream_peek (stream, '<'))
2255 result = variant_parse (stream, app, error);
2257 else if (token_stream_peek (stream, '{'))
2258 result = dictionary_parse (stream, app, error);
2260 else if (app && token_stream_peek (stream, '%'))
2261 result = positional_parse (stream, app, error);
2263 else if (token_stream_consume (stream, "true"))
2264 result = boolean_new (TRUE);
2266 else if (token_stream_consume (stream, "false"))
2267 result = boolean_new (FALSE);
2269 else if (token_stream_is_numeric (stream) ||
2270 token_stream_peek_string (stream, "inf") ||
2271 token_stream_peek_string (stream, "nan"))
2272 result = number_parse (stream, app, error);
2274 else if (token_stream_peek (stream, 'n') ||
2275 token_stream_peek (stream, 'j'))
2276 result = maybe_parse (stream, app, error);
2278 else if (token_stream_peek (stream, '@') ||
2279 token_stream_is_keyword (stream))
2280 result = typedecl_parse (stream, app, error);
2282 else if (token_stream_peek (stream, '\'') ||
2283 token_stream_peek (stream, '"'))
2284 result = string_parse (stream, app, error);
2286 else if (token_stream_peek2 (stream, 'b', '\'') ||
2287 token_stream_peek2 (stream, 'b', '"'))
2288 result = bytestring_parse (stream, app, error);
2292 token_stream_set_error (stream, error, FALSE,
2293 G_VARIANT_PARSE_ERROR_VALUE_EXPECTED,
2300 token_stream_end_ref (stream, &source_ref);
2301 result->source_ref = source_ref;
2309 * @type: (allow-none): a #GVariantType, or %NULL
2310 * @text: a string containing a GVariant in text form
2311 * @limit: (allow-none): a pointer to the end of @text, or %NULL
2312 * @endptr: (allow-none): a location to store the end pointer, or %NULL
2313 * @error: (allow-none): a pointer to a %NULL #GError pointer, or %NULL
2315 * Parses a #GVariant from a text representation.
2317 * A single #GVariant is parsed from the content of @text.
2319 * The format is described <link linkend='gvariant-text'>here</link>.
2321 * The memory at @limit will never be accessed and the parser behaves as
2322 * if the character at @limit is the nul terminator. This has the
2323 * effect of bounding @text.
2325 * If @endptr is non-%NULL then @text is permitted to contain data
2326 * following the value that this function parses and @endptr will be
2327 * updated to point to the first character past the end of the text
2328 * parsed by this function. If @endptr is %NULL and there is extra data
2329 * then an error is returned.
2331 * If @type is non-%NULL then the value will be parsed to have that
2332 * type. This may result in additional parse errors (in the case that
2333 * the parsed value doesn't fit the type) but may also result in fewer
2334 * errors (in the case that the type would have been ambiguous, such as
2335 * with empty arrays).
2337 * In the event that the parsing is successful, the resulting #GVariant
2340 * In case of any error, %NULL will be returned. If @error is non-%NULL
2341 * then it will be set to reflect the error that occurred.
2343 * Officially, the language understood by the parser is "any string
2344 * produced by g_variant_print()".
2346 * Returns: a reference to a #GVariant, or %NULL
2349 g_variant_parse (const GVariantType *type,
2352 const gchar **endptr,
2355 TokenStream stream = { 0, };
2356 GVariant *result = NULL;
2359 g_return_val_if_fail (text != NULL, NULL);
2360 g_return_val_if_fail (text == limit || text != NULL, NULL);
2362 stream.start = text;
2363 stream.stream = text;
2366 if ((ast = parse (&stream, NULL, error)))
2369 result = ast_resolve (ast, error);
2371 result = ast_get_value (ast, type, error);
2375 g_variant_ref_sink (result);
2379 while (stream.stream != limit &&
2380 g_ascii_isspace (*stream.stream))
2383 if (stream.stream != limit && *stream.stream != '\0')
2385 SourceRef ref = { stream.stream - text,
2386 stream.stream - text };
2388 parser_set_error (error, &ref, NULL,
2389 G_VARIANT_PARSE_ERROR_INPUT_NOT_AT_END,
2390 "expected end of input");
2391 g_variant_unref (result);
2397 *endptr = stream.stream;
2407 * g_variant_new_parsed_va:
2408 * @format: a text format #GVariant
2409 * @app: a pointer to a #va_list
2411 * Parses @format and returns the result.
2413 * This is the version of g_variant_new_parsed() intended to be used
2416 * The return value will be floating if it was a newly created GVariant
2417 * instance. In the case that @format simply specified the collection
2418 * of a #GVariant pointer (eg: @format was "%*") then the collected
2419 * #GVariant pointer will be returned unmodified, without adding any
2420 * additional references.
2422 * In order to behave correctly in all cases it is necessary for the
2423 * calling function to g_variant_ref_sink() the return result before
2424 * returning control to the user that originally provided the pointer.
2425 * At this point, the caller will have their own full reference to the
2426 * result. This can also be done by adding the result to a container,
2427 * or by passing it to another g_variant_new() call.
2429 * Returns: a new, usually floating, #GVariant
2432 g_variant_new_parsed_va (const gchar *format,
2435 TokenStream stream = { 0, };
2436 GVariant *result = NULL;
2437 GError *error = NULL;
2440 g_return_val_if_fail (format != NULL, NULL);
2441 g_return_val_if_fail (app != NULL, NULL);
2443 stream.start = format;
2444 stream.stream = format;
2447 if ((ast = parse (&stream, app, &error)))
2449 result = ast_resolve (ast, &error);
2454 g_error ("g_variant_new_parsed: %s", error->message);
2457 g_error ("g_variant_new_parsed: trailing text after value");
2463 * g_variant_new_parsed:
2464 * @format: a text format #GVariant
2465 * @...: arguments as per @format
2467 * Parses @format and returns the result.
2469 * @format must be a text format #GVariant with one extension: at any
2470 * point that a value may appear in the text, a '%' character followed
2471 * by a GVariant format string (as per g_variant_new()) may appear. In
2472 * that case, the same arguments are collected from the argument list as
2473 * g_variant_new() would have collected.
2475 * Consider this simple example:
2477 * <informalexample><programlisting>
2478 * g_variant_new_parsed ("[('one', 1), ('two', %i), (%s, 3)]", 2, "three");
2479 * </programlisting></informalexample>
2481 * In the example, the variable argument parameters are collected and
2482 * filled in as if they were part of the original string to produce the
2483 * result of <code>[('one', 1), ('two', 2), ('three', 3)]</code>.
2485 * This function is intended only to be used with @format as a string
2486 * literal. Any parse error is fatal to the calling process. If you
2487 * want to parse data from untrusted sources, use g_variant_parse().
2489 * You may not use this function to return, unmodified, a single
2490 * #GVariant pointer from the argument list. ie: @format may not solely
2491 * be anything along the lines of "%*", "%?", "\%r", or anything starting
2494 * Returns: a new floating #GVariant instance
2497 g_variant_new_parsed (const gchar *format,
2503 va_start (ap, format);
2504 result = g_variant_new_parsed_va (format, &ap);
2511 * g_variant_builder_add_parsed:
2512 * @builder: a #GVariantBuilder
2513 * @format: a text format #GVariant
2514 * @...: arguments as per @format
2516 * Adds to a #GVariantBuilder.
2518 * This call is a convenience wrapper that is exactly equivalent to
2519 * calling g_variant_new_parsed() followed by
2520 * g_variant_builder_add_value().
2522 * This function might be used as follows:
2526 * make_pointless_dictionary (void)
2528 * GVariantBuilder *builder;
2531 * builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY);
2532 * g_variant_builder_add_parsed (builder, "{'width', <%i>}", 600);
2533 * g_variant_builder_add_parsed (builder, "{'title', <%s>}", "foo");
2534 * g_variant_builder_add_parsed (builder, "{'transparency', <0.5>}");
2535 * return g_variant_builder_end (builder);
2542 g_variant_builder_add_parsed (GVariantBuilder *builder,
2543 const gchar *format,
2548 va_start (ap, format);
2549 g_variant_builder_add_value (builder, g_variant_new_parsed_va (format, &ap));