Fix some unicode issues

Author: mgreter

Makefile.conf

@@ -28,7 +28,7 @@ SOURCES = \
 	color_maps.cpp \
 	environment.cpp \
 	ast_fwd_decl.cpp \
-  devlog.cpp \
+	devlog.cpp \
 	bind.cpp \
 	file.cpp \
 	util.cpp \

src/interpolation.cpp

@@ -7,11 +7,22 @@
 
 
 #include "interpolation.hpp"
+#include "utf8/checked.h"
 
 #include "devlog.hpp"
 
 namespace Sass {
 
+  void StringBuffer::writeCharCode(uint32_t character)
+  {
+    utf8::append(character, std::back_inserter(buffer));
+  }
+
+  void InterpolationBuffer::writeCharCode(uint32_t character)
+  {
+    text.writeCharCode(character);
+  }
+
   Interpolation2* InterpolationBuffer::getInterpolation()
   {
     auto itpl = SASS_MEMORY_NEW(Interpolation2, "[pstate]");

src/interpolation.hpp

@@ -22,10 +22,9 @@ namespace Sass {
       buffer()
     {}
 
-    void writeCharCode(uint8_t character)
-    {
-      buffer.push_back(character);
-    }
+    void writeCharCode(uint32_t character);
+
+    // void write(uint32_t character);
 
     void write(unsigned char character)
     {
@@ -37,11 +36,6 @@ namespace Sass {
       buffer.push_back(character);
     }
 
-    void write(uint32_t character)
-    {
-      // buffer.push_back(character);
-    }
-
     void write(const std::string& text)
     {
       buffer += text;
@@ -105,10 +99,7 @@ namespace Sass {
 
   public:
 
-    void writeCharCode(uint8_t character)
-    {
-      text.write(character);
-    }
+    void writeCharCode(uint32_t character);
 
     void addInterpolation(const String_Schema* schema);
     void addInterpolation(const Interpolation2* schema);