/* PSPP - a program for statistical analysis.
- Copyright (C) 2006-2007, 2009-2012 Free Software Foundation, Inc.
+ Copyright (C) 2006-2007, 2009-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
struct dictionary;
-/* Magic numbers.
+/* ASCII magic numbers. */
+#define ASCII_MAGIC "$FL2" /* For regular files. */
+#define ASCII_ZMAGIC "$FL3" /* For ZLIB compressed files. */
- Both of these are actually $FL2 in the respective character set. The "FL2"
- part is invariant among national variants of each character set, but "$" has
- different encodings, so it is safer to write them as hexadecimal. */
-#define ASCII_MAGIC "\x24\x46\x4c\x32"
+/* EBCDIC magic number, the same as ASCII_MAGIC but encoded in EBCDIC.
+
+ No EBCDIC ZLIB compressed files have been observed, so we do not define
+ EBCDIC_ZMAGIC even though the value is obvious. */
#define EBCDIC_MAGIC "\x5b\xc6\xd3\xf2"
+/* Amount of data that ZLIB compressed data blocks typically decompress to. */
+#define ZBLOCK_SIZE 0x3ff000
+
/* A variable in a system file. */
struct sfm_var
{