[vala] vapigen: Make quotes around metadata arguments optional

[Jürg Billeter <juergbi src gnome org>]

commit 4ac95d127410491867918f690d06eb8bbd661f6d
Author: Evan Nemerson <evan coeus-group com>
Date:   Tue Jul 21 14:29:11 2009 -0700

    vapigen: Make quotes around metadata arguments optional
    
    Fixes bug 588171.

 vapigen/valagidlparser.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/vapigen/valagidlparser.vala b/vapigen/valagidlparser.vala
index 70a2019..e8ee349 100644
--- a/vapigen/valagidlparser.vala
+++ b/vapigen/valagidlparser.vala
@@ -1930,7 +1930,7 @@ public class Vala.GIdlParser : CodeVisitor {
 	}
 	
 	private string eval (string s) {
-		return s.offset (1).ndup (s.size () - 2);
+		return ((s.size () >= 2) && s.has_prefix ("\"") && s.has_suffix ("\"")) ? s.offset (1).ndup (s.size () - 2) : s;
 	}
 
 	private Signal? parse_signal (IdlNodeSignal sig_node) {