Reorganize the implementations of the virtual member function Fl_System_Driver::getenv()

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11585 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_System_Driver.H

@@ -79,7 +79,7 @@ public:
   
   // implement these to support cross-platform file operations
   virtual char *utf2mbcs(const char *s) {return (char*)s;}
-  virtual char *getenv(const char* v);
+  virtual char *getenv(const char* v) {return NULL;}
   virtual int putenv(char* v) {return -1;}
   virtual int open(const char* f, int oflags, int pmode) {return -1;}
   virtual FILE *fopen(const char* f, const char *mode) {return NULL;}
@@ -97,7 +97,7 @@ public:
   // the default implementation of these utf8... functions should be enough 
   virtual unsigned utf8towc(const char* src, unsigned srclen, wchar_t* dst, unsigned dstlen);
   virtual unsigned utf8fromwc(char* dst, unsigned dstlen, const wchar_t* src, unsigned srclen);
-  virtual int utf8locale();
+  virtual int utf8locale() {return 1;}
   virtual unsigned utf8to_mb(const char* src, unsigned srclen, char* dst, unsigned dstlen);
   virtual unsigned utf8from_mb(char* dst, unsigned dstlen, const char* src, unsigned srclen);
   // implement to shield fprintf() from locale changes in decimal point

src/Fl_System_Driver.cxx

@@ -219,10 +219,6 @@ int Fl_System_Driver::XParseGeometry(const char* string, int* x, int* y,
   return (mask);
 }
 
-char *Fl_System_Driver::getenv(const char *v) {
-  return ::getenv(v);
-}
-
 unsigned Fl_System_Driver::utf8towc(const char* src, unsigned srclen, wchar_t* dst, unsigned dstlen) {
   const char* p = src;
   const char* e = src+srclen;
@@ -303,20 +299,6 @@ J1:
   return count;
 }
 
-int Fl_System_Driver::utf8locale() {
-  static int ret = 2;
-  if (ret == 2) {
-    char* s;
-    ret = 1; // assume UTF-8 if no locale
-    if (((s = getenv("LC_CTYPE")) && *s) ||
-        ((s = getenv("LC_ALL"))   && *s) ||
-        ((s = getenv("LANG"))     && *s)) {
-      ret = (strstr(s,"utf") || strstr(s,"UTF"));
-    }
-  }
-  return ret;
-}
-
 unsigned Fl_System_Driver::utf8to_mb(const char* src, unsigned srclen, char* dst, unsigned dstlen) {
   wchar_t lbuf[1024];
   wchar_t* buf = lbuf;

src/drivers/Posix/Fl_Posix_System_Driver.H

@@ -52,6 +52,7 @@ public:
   virtual int open(const char* f, int oflags, int pmode) {
     return pmode == -1 ?  ::open(f, oflags) : ::open(f, oflags, pmode);
   }
+  virtual char *getenv(const char *v) { return ::getenv(v); }  
   virtual int putenv(char* v) {return ::putenv(v);}
   virtual FILE *fopen(const char* f, const char *mode) {return ::fopen(f, mode);}
   virtual int system(const char* cmd) {return ::system(cmd);}

src/drivers/X11/Fl_X11_System_Driver.H

@@ -42,6 +42,7 @@ public:
   virtual char *preference_rootnode(Fl_Preferences *prefs, Fl_Preferences::Root root, const char *vendor,
                                     const char *application);
   virtual int preferences_need_protection_check() {return 1;} 
+  virtual int utf8locale();
 };
 
 #endif /* FL_X11_SYSTEM_DRIVER_H */

src/drivers/X11/Fl_X11_System_Driver.cxx

@@ -499,6 +499,15 @@ int Fl_X11_System_Driver::filename_list(const char *d, dirent ***list, int (*sor
   return n;
 }
 
+int Fl_X11_System_Driver::utf8locale() {
+  char *s;
+  static int ret = ((s = ::getenv("LC_CTYPE")) && *s) ||
+  ((s = ::getenv("LC_ALL"))   && *s) ||
+  ((s = ::getenv("LANG"))     && *s)
+  ? 1 : 0;
+  return ret;
+}
+
 //
 // End of "$Id: quartz.H 11017 2016-01-20 21:40:12Z matt $".
 //