Rewrote _scanf. It does need some tests and improvements, but it's a more

standard version than before, and it does support the necessary functionality
to support scanf functions for files.
Added vfscanf, fscanf and vfscanf.


git-svn-id: svn://svn.cc65.org/cc65/trunk@3301 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/common/vfscanf.c

@@ -0,0 +1,39 @@
+/*
+ * vfscanf.c
+ *
+ * Ullrich von Bassewitz (uz@cc65.org), 2004-11-26
+ *
+ */
+
+
+
+#include <stdio.h>
+#include "_scanf.h"
+
+
+
+/*****************************************************************************/
+/*     	    	     		     Code				     */
+/*****************************************************************************/
+
+
+
+int __fastcall__ vfscanf (FILE* f, const char* format, va_list ap)
+/* Standard C function */
+{
+    struct scanfdata d;
+
+    /* Initialize the data struct. We do only need the given file as user data,
+     * since the get and ungetc are crafted so they match the standard fgetc
+     * and ungetc functions.
+     */
+    d.get    = (getfunc) fgetc,
+    d.unget  = (ungetfunc) ungetc,
+    d.data   = f;
+
+    /* Call the internal function and return the result */
+    return _scanf (&d, format, ap);
+}
+
+
+