Make df2console only call df2utf if the output stream is a console

Fixes output in command-prompt, for example

docs/changelog.txt

@@ -39,6 +39,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 
 ## Fixes
 -@ Console: fixed crash when entering long commands on Linux/macOS
+- Fixed special characters in `command-prompt` and other non-console in-game outputs on Linux/macOS (in tools using ``df2console``)
 - `startdwarf`: fixed on 64-bit Linux
 
 ## Structures

library/LuaApi.cpp

@@ -1416,7 +1416,7 @@ static bool isMapLoaded() { return Core::getInstance().isMapLoaded(); }
 
 static std::string df2utf(std::string s) { return DF2UTF(s); }
 static std::string utf2df(std::string s) { return UTF2DF(s); }
-static std::string df2console(std::string s) { return DF2CONSOLE(s); }
+static std::string df2console(color_ostream &out, std::string s) { return DF2CONSOLE(out, s); }
 
 #define WRAP_VERSION_FUNC(name, function) WRAPN(name, DFHack::Version::function)
 

library/MiscUtils.cpp

@@ -25,6 +25,7 @@ distribution.
 #include "Internal.h"
 #include "Export.h"
 #include "MiscUtils.h"
+#include "ColorText.h"
 
 #ifndef LINUX_BUILD
 // We don't want min and max macros
@@ -394,3 +395,8 @@ DFHACK_EXPORT std::string DF2CONSOLE(const std::string &in)
 #endif
     return is_utf ? DF2UTF(in) : in;
 }
+
+DFHACK_EXPORT std::string DF2CONSOLE(DFHack::color_ostream &out, const std::string &in)
+{
+    return out.is_console() ? DF2CONSOLE(in) : in;
+}

library/include/MiscUtils.h

@@ -45,6 +45,10 @@ using std::endl;
     #define DFHACK_FUNCTION_SIG __func__
 #endif
 
+namespace DFHack {
+    class color_ostream;
+}
+
 /*! \namespace dts
  * std.reverse() == dts, The namespace that include forward compatible helpers
  * which can be used from newer standards. The preprocessor check prefers
@@ -384,3 +388,4 @@ DFHACK_EXPORT std::string stl_vsprintf(const char *fmt, va_list args) Wformat(pr
 DFHACK_EXPORT std::string UTF2DF(const std::string &in);
 DFHACK_EXPORT std::string DF2UTF(const std::string &in);
 DFHACK_EXPORT std::string DF2CONSOLE(const std::string &in);
+DFHACK_EXPORT std::string DF2CONSOLE(DFHack::color_ostream &out, const std::string &in);

plugins/showmood.cpp

@@ -69,7 +69,7 @@ command_result df_showmood (color_ostream &out, vector <string> & parameters)
             out.printerr("Dwarf with strange mood does not have a mood type!\n");
             continue;
         }
-        out.print("%s is currently ", DF2CONSOLE(Translation::TranslateName(&unit->name, false)).c_str());
+        out.print("%s is currently ", DF2CONSOLE(out, Translation::TranslateName(&unit->name, false)).c_str());
         switch (unit->mood)
         {
         case mood_type::Macabre: