+extern const struct any_reader_class sys_file_reader_class;
+extern const struct any_reader_class por_file_reader_class;
+extern const struct any_reader_class pcp_file_reader_class;
+
+enum any_type
+ {
+ ANY_SYS, /* SPSS System File. */
+ ANY_PCP, /* SPSS/PC+ System File. */
+ ANY_POR, /* SPSS Portable File. */
+ };
+
+enum any_compression
+ {
+ ANY_COMP_NONE, /* No compression. */
+ ANY_COMP_SIMPLE, /* Bytecode compression of integer values. */
+ ANY_COMP_ZLIB /* ZLIB "deflate" compression. */
+ };
+
+/* Data file info that doesn't fit in struct dictionary.
+
+ The strings in this structure are encoded in UTF-8. (They are normally in
+ the ASCII subset of UTF-8.) */
+struct any_read_info
+ {
+ const struct any_reader_class *klass;
+ char *creation_date;
+ char *creation_time;
+ enum integer_format integer_format;
+ enum float_format float_format;
+ enum any_compression compression;
+ casenumber case_cnt; /* -1 if unknown. */
+ char *product; /* Product name. */
+ char *product_ext; /* Extra product info. */
+
+ /* Writer's version number in X.Y.Z format.
+ The version number is not always present; if not, then
+ all of these are set to 0. */
+ int version_major; /* X. */
+ int version_minor; /* Y. */
+ int version_revision; /* Z. */
+ };
+
+void any_read_info_destroy (struct any_read_info *);