libhb: add basic dictionary implementation.

Note: under OS X, this commit may require a full rebuild to work properly.



git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4550 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 43 insertions, 0 deletions

diff --git a/libhb/hb_dict.h b/libhb/hb_dict.h
new file mode 100644
index 000000000..b8ca4c562
--- /dev/null
+++ b/libhb/hb_dict.h
@@ -0,0 +1,43 @@
+/* This file is part of the HandBrake source code.
+   Homepage: <http://handbrake.fr/>.
+   It may be used under the terms of the GNU General Public License. */
+
+typedef struct hb_dict_entry_s hb_dict_entry_t;
+typedef struct hb_dict_s       hb_dict_t;
+
+/* Basic dictionary implementation.
+ *
+ * an hb_dict_t must be initialized with hb_dict_init() before use.
+ *
+ * "key" must be a string with non-zero length (NULL and "" are invalid keys).
+ * "value" can be NULL (the zero-length string "" is mapped to NULL).
+ *
+ * hb_dict_next( dict, NULL ) returns the first key in the dictionary.
+ * hb_dict_next( dict, previous ) returns key directly following previous, or
+ * NULL if the end of the dictionary was reached.
+ *
+ * hb_encopts_to_dict() converts an op1=val1:opt2=val2:opt3=val3 type string to
+ * an hb_dict_t dictionary. */
+
+hb_dict_t * hb_dict_init( int alloc );
+void        hb_dict_free( hb_dict_t ** dict_ptr );
+
+void hb_dict_set(  hb_dict_t ** dict_ptr, const char * key, const char * value );
+
+hb_dict_entry_t * hb_dict_get(  hb_dict_t  * dict, const char * key );
+hb_dict_entry_t * hb_dict_next( hb_dict_t  * dict, hb_dict_entry_t * previous );
+
+hb_dict_t * hb_encopts_to_dict( const char * encopts );
+
+struct hb_dict_entry_s
+{
+    char * key;
+    char * value;
+};
+
+struct hb_dict_s
+{
+    int alloc;
+    int count;
+    hb_dict_entry_t * objects;
+};