From 0b6bdcce6cea21909553a334629a5b3d004bd553 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Fri, 11 Feb 2011 23:37:12 +0000
Subject: Add support for boolean values. Replace slv2_world_filter_language
 with extensible option system (slv2_world_set_option).

git-svn-id: http://svn.drobilla.net/lad/trunk/slv2@2923 a436a847-0d15-0410-975c-d299462d15a1
---
 slv2/value.h | 26 ++++++++++++++++++++++++++
 slv2/world.h | 11 +++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

(limited to 'slv2')

diff --git a/slv2/value.h b/slv2/value.h
index 541c3de..84c5b94 100644
--- a/slv2/value.h
+++ b/slv2/value.h
@@ -62,6 +62,14 @@ SLV2_API
 SLV2Value
 slv2_value_new_float(SLV2World world, float val);
 
+/** Create a new boolean value.
+ *
+ * Returned value must be freed by caller with slv2_value_free.
+ */
+SLV2_API
+SLV2Value
+slv2_value_new_bool(SLV2World world, bool val);
+
 /** Free an SLV2Value.
  */
 SLV2_API
@@ -197,6 +205,24 @@ SLV2_API
 int
 slv2_value_as_int(SLV2Value value);
 
+/** Return whether this value is a boolean.
+ *
+ * Time = O(1)
+ */
+SLV2_API
+bool
+slv2_value_is_bool(SLV2Value value);
+
+/** Return \a value as a bool.
+ *
+ * Valid to call only if slv2_value_is_bool(\a value) returns true.
+ *
+ * Time = O(1)
+ */
+SLV2_API
+bool
+slv2_value_as_bool(SLV2Value value);
+
 /** @} */
 
 #ifdef __cplusplus
diff --git a/slv2/world.h b/slv2/world.h
index 15dddf8..8bd4b35 100644
--- a/slv2/world.h
+++ b/slv2/world.h
@@ -52,14 +52,21 @@ SLV2_API
 SLV2World
 slv2_world_new(void);
 
-/** Enable/disable language filtering for @a world.
+/** Enable/disable language filtering.
+ * Language filtering applies to any functions that return (a) value(s).
  * With filtering enabled, SLV2 will automatically return the best value(s)
  * for the current LANG.  With filtering disabled, all matching values will
  * be returned regardless of language tag.  Filtering is enabled by default.
  */
+#define SLV2_OPTION_FILTER_LANG "http://drobilla.net/ns/slv2#filter-lang"
+
+/** Set an SLV2 option for @a world.
+ */
 SLV2_API
 void
-slv2_world_filter_language(SLV2World world, bool filter);
+slv2_world_set_option(SLV2World       world,
+                      const char*     uri,
+                      const SLV2Value value);
 
 /** Destroy the world, mwahaha.
  *
-- 
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