Display the Unicode Character Database version in the generated file.

src/categories.cpp

 
 using namespace ucd;
 
+// Unicode Character Data 6.2
+
 static const ucd::category categories_000000[256] =
 {
 	/* 00 */ Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc, Cc,

tools/categories.py

 import ucd
 
 ucd_rootdir = sys.argv[1]
+ucd_version = ucd_rootdir.split('-')[-1]
 
 unicode_chars = {}
 for data in ucd.parse_ucd_data(ucd_rootdir, 'UnicodeData'):
 #include <stddef.h>
 
 using namespace ucd;
-""")
+
+// Unicode Character Data %s
+""" % ucd_version)
 
 	for codepoints, category, comment in category_sets:
 		if not category: