Merge branch 'master' into windows

[ardour.git] / libs / pbd / convert.cc

diff --git a/libs/pbd/convert.cc b/libs/pbd/convert.cc
index 3d968d06279694f85e06a7c2a6d04f9312f90b17..1787d3b70d9f33f5b95f945bcfd7f14aae039e96 100644 (file)
--- a/libs/pbd/convert.cc
+++ b/libs/pbd/convert.cc
@@ -28,6 +28,8 @@
 #endif
 #include <inttypes.h>
 
+#include <glib.h>
+
 #include "pbd/convert.h"
 
 #include "i18n.h"
@@ -255,6 +257,26 @@ strings_equal_ignore_case (const string& a, const string& b)
        return false;
 }
 
+bool
+string_is_affirmative (const std::string& str)
+{
+       /* to be used only with XML data - not intended to handle user input */
+
+       if (str.empty ()) {
+               return false;
+       }
+
+       /* the use of g_ascii_strncasecmp() is solely to get around issues with
+        * charsets posed by trying to use C++ for the same
+        * comparison. switching a std::string to its lower- or upper-case
+        * version has several issues, but handled by default
+        * in the way we desire when doing it in C.
+        */
+
+       return str == "1" || str == "y" || str == "Y" || (!g_ascii_strncasecmp(str.c_str(), "yes", str.length())) ||
+               (!g_ascii_strncasecmp(str.c_str(), "true", str.length()));
+}
+
 /** A wrapper for dgettext that takes a msgid of the form Context|Text.
  *  If Context|Text is translated, the translation is returned, otherwise
  *  just Text is returned.  Useful for getting translations of words or phrases