From d1a305e30f354bed10ffffebe349ebbeea6093ff Mon Sep 17 00:00:00 2001
From: Andreas Huggel <ahuggel@gmx.net>
Date: Thu, 1 May 2008 08:22:26 +0000
Subject: [PATCH] Added LangAltValue::toString(const std::string&) to get the
 value for a specific language qualifier (suggested by Marco Piovanelli).

---
 src/value.cpp | 10 ++++++++++
 src/value.hpp | 14 +++++++++++---
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/value.cpp b/src/value.cpp
index 96ef9b78..9e40c3a5 100644
--- a/src/value.cpp
+++ b/src/value.cpp
@@ -702,6 +702,16 @@ namespace Exiv2 {
 
     std::string LangAltValue::toString(long /*n*/) const 
     {
+        return toString("x-default");
+    }
+
+    std::string LangAltValue::toString(const std::string& qualifier) const 
+    {
+        ValueType::const_iterator i = value_.find(qualifier);
+        if (i != value_.end()) {
+            ok_ = true;
+            return i->second;
+        }
         ok_ = false;
         return "";
     }
diff --git a/src/value.hpp b/src/value.hpp
index e95ca14f..82b5ddda 100644
--- a/src/value.hpp
+++ b/src/value.hpp
@@ -893,11 +893,19 @@ namespace Exiv2 {
         AutoPtr clone() const;
         virtual long count() const;
         /*!
-          @brief Return the <EM>n</EM>-th component of the value as a string.
-                 The behaviour of this method may be undefined if there is no
-                 <EM>n</EM>-th component.
+          @brief Return the text value associated with the default language
+                 qualifier \c x-default. The parameter \em n is not used, but
+                 it is suggested that only 0 is passed in. Returns an empty
+                 string and sets the ok-flag to \c false if there is no
+                 default value.
          */
         virtual std::string toString(long n) const;
+        /*!
+          @brief Return the text value associated with the language qualifier
+                 \em qualifier. Returns an empty string and sets the ok-flag
+                 to \c false if there is no entry for the language qualifier.
+         */
+        std::string toString(const std::string& qualifier) const;
         virtual long toLong(long n =0) const;
         virtual float toFloat(long n =0) const;
         virtual Rational toRational(long n =0) const;