[vala] girparser: Use c:symbol-prefixes as lower_case_cprefix when available

[Luca Bruno <lucabru src gnome org>]

commit 18850d394787add1fa47b4824bb4cb68490f3c63
Author: Luca Bruno <lucabru src gnome org>
Date:   Mon Aug 22 12:23:12 2011 +0200

    girparser: Use c:symbol-prefixes as lower_case_cprefix when available

 vala/valagirparser.vala               |   16 +++++++++++++++-
 vapi/metadata/GtkSource-3.0.metadata  |    2 +-
 vapi/metadata/PangoCairo-1.0.metadata |    2 +-
 3 files changed, 17 insertions(+), 3 deletions(-)
---
diff --git a/vala/valagirparser.vala b/vala/valagirparser.vala
index c440705..81cf6a8 100644
--- a/vala/valagirparser.vala
+++ b/vala/valagirparser.vala
@@ -68,6 +68,7 @@ public class Vala.GirParser : CodeVisitor {
 		SENTINEL,
 		CLOSURE,
 		CPREFIX,
+		LOWER_CASE_CPREFIX,
 		ERRORDOMAIN;
 
 		public static ArgumentType? from_string (string name) {
@@ -1741,6 +1742,7 @@ public class Vala.GirParser : CodeVisitor {
 		start_element ("namespace");
 
 		string? cprefix = reader.get_attribute ("c:identifier-prefixes");
+		string? lower_case_cprefix = reader.get_attribute ("c:symbol-prefixes");
 		string vala_namespace = cprefix;
 		string gir_namespace = reader.get_attribute ("name");
 		string gir_version = reader.get_attribute ("version");
@@ -1778,12 +1780,24 @@ public class Vala.GirParser : CodeVisitor {
 			cprefix = ns_metadata.get_string (ArgumentType.CPREFIX);
 		}
 
+		if (ns_metadata.has_argument (ArgumentType.LOWER_CASE_CPREFIX)) {
+			lower_case_cprefix = ns_metadata.get_string (ArgumentType.LOWER_CASE_CPREFIX);
+		} else if (lower_case_cprefix != null) {
+			lower_case_cprefix += "_";
+		}
+
 		ns.set_attribute_string ("CCode", "gir_namespace", gir_namespace);
 		ns.set_attribute_string ("CCode", "gir_version", gir_version);
 
 		if (cprefix != null) {
 			ns.set_attribute_string ("CCode", "cprefix", cprefix);
-			ns.set_attribute_string ("CCode", "lower_case_cprefix", Symbol.camel_case_to_lower_case (cprefix) + "_");
+			if (lower_case_cprefix == null) {
+				ns.set_attribute_string ("CCode", "lower_case_cprefix", Symbol.camel_case_to_lower_case (cprefix) + "_");
+			}
+		}
+
+		if (lower_case_cprefix != null) {
+			ns.set_attribute_string ("CCode", "lower_case_cprefix", lower_case_cprefix);
 		}
 
 		if (cheader_filenames != null) {
diff --git a/vapi/metadata/GtkSource-3.0.metadata b/vapi/metadata/GtkSource-3.0.metadata
index d570b4e..69fa7fd 100644
--- a/vapi/metadata/GtkSource-3.0.metadata
+++ b/vapi/metadata/GtkSource-3.0.metadata
@@ -1,5 +1,5 @@
 * name="(.+)/Source\\1"
-GtkSource name="Gtk" cprefix="Gtk"
+GtkSource name="Gtk" cprefix="Gtk" lower_case_cprefix="gtk_"
 CompletionProvider
         .*#virtual_method virtual
         .get_icon nullable
diff --git a/vapi/metadata/PangoCairo-1.0.metadata b/vapi/metadata/PangoCairo-1.0.metadata
index 1c486ea..04cf408 100644
--- a/vapi/metadata/PangoCairo-1.0.metadata
+++ b/vapi/metadata/PangoCairo-1.0.metadata
@@ -1,6 +1,6 @@
 * name="(.+)/Cairo\\1"
 *#function name="(.+)/cairo_\\1" skip=false
-PangoCairo name="Pango" cprefix="Pango"
+PangoCairo name="Pango" cprefix="Pango" lower_case_cprefix="pango_"
 
 // Report upstream
 PangoCairo cheader_filename="pango/pangocairo.h"