X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fany-reader.h;h=6e4d751f781fc0c876af30c0a7984a27afc3134e;hb=5d1c47b1ef2d392ce223606139d45eac749d4c80;hp=44c8cef7a122bdca3c8b69a54076536c5c0b5c4e;hpb=92c09e564002d356d20fc1e2e131027ef89f6748;p=pspp

diff --git a/src/data/any-reader.h b/src/data/any-reader.h
index 44c8cef7a1..6e4d751f78 100644
--- a/src/data/any-reader.h
+++ b/src/data/any-reader.h
@@ -1,29 +1,117 @@
-/* PSPP - computes sample statistics.
-   Copyright (C) 2006 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2006, 2010, 2012, 2014, 2015 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 the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #ifndef ANY_READER_H
 #define ANY_READER_H 1
 
 #include <stdbool.h>
+#include <stdio.h>
+#include "data/case.h"
+#include "libpspp/float-format.h"
+#include "libpspp/integer-format.h"
+
+struct any_read_info;
+struct dictionary;
+struct file_handle;
+
+struct any_reader
+  {
+    const struct any_reader_class *klass;
+  };
+
+struct any_reader_class
+  {
+    /* The name of this kind of data file, e.g. "SPSS System File". */
+    const char *name;
+
+    /* Detects whether FILE contains this type of file.  Returns 1 if so, 0 if
+       not, and a negative errno value if there is an error reading FILE. */
+    int (*detect) (FILE *file);
+
+    struct any_reader *(*open) (struct file_handle *);
+    bool (*close) (struct any_reader *);
+    struct casereader *(*decode) (struct any_reader *, const char *encoding,
+                                  struct dictionary **,
+                                  struct any_read_info *);
+    size_t (*get_strings) (const struct any_reader *, struct pool *pool,
+                           char ***labels, bool **ids, char ***values);
+  };
+
+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 n_cases;         /* -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 *);
 
 struct file_handle;
 struct dictionary;
-struct casereader *any_reader_open (struct file_handle *,
-                                    struct dictionary **);
+
+int any_reader_detect (const struct file_handle *file_name,
+                       const struct any_reader_class **);
+
+struct any_reader *any_reader_open (struct file_handle *);
+bool any_reader_close (struct any_reader *);
+struct casereader *any_reader_decode (struct any_reader *,
+                                      const char *encoding,
+                                      struct dictionary **,
+                                      struct any_read_info *);
+size_t any_reader_get_strings (const struct any_reader *, struct pool *pool,
+                               char ***labels, bool **ids, char ***values);
+
+struct casereader *any_reader_open_and_decode (struct file_handle *,
+                                               const char *encoding,
+                                               struct dictionary **,
+                                               struct any_read_info *);
 
 #endif /* any-reader.h */