import libtiff 3.8.2 into the trunk

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48823 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/tiff/contrib/mac-mpw/mactrans.c

@@ -0,0 +1,56 @@
+/*
+ *  mactrans.c  -- Hack filter used to generate MPW files 
+ *    with special characters from pure ASCII, denoted "%nn" 
+ *    where nn is hex. (except for "%%", which is literal '%').
+ *
+ *  calling sequence:
+ *
+ *    catenate file | mactrans [-toascii | -fromascii] > output
+ *
+ *    Written by: Niles Ritter.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+void to_ascii(void);
+void from_ascii(void);
+
+main(int argc, char *argv[])
+{
+	if (argc<2 || argv[1][1]=='f') from_ascii();
+	else to_ascii();
+	exit (0);
+}
+
+void from_ascii(void)
+{
+    char c;
+    int d;
+    while ((c=getchar())!=EOF)
+    {
+    	if (c!='%' || (c=getchar())=='%') putchar(c);
+	else
+	{
+		ungetc(c,stdin);
+		scanf("%2x",&d);
+		*((unsigned char *)&c) = d;
+		putchar(c);
+	}
+    }
+}
+
+void to_ascii(void)
+{
+    char c;
+    int d;
+    while ((c=getchar())!=EOF)
+    {
+    	if (isascii(c)) putchar (c);
+	else
+	{
+		d = *((unsigned char *)&c);
+		printf("%%%2x",d);
+	}
+    }
+}