/* PSPP - computes sample statistics.
Copyright (C) 2006 Free Software Foundation, Inc.
- Written by Ben Pfaff <blp@gnu.org>.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
+#include <libpspp/assertion.h>
#include <libpspp/message.h>
#include "file-handle-def.h"
-#include "filename.h"
+#include "file-name.h"
#include "por-file-writer.h"
#include "sys-file-writer.h"
#include <libpspp/str.h>
#include "gettext.h"
#define _(msgid) gettext (msgid)
-/* Type of file backing an any_writer. */
-enum any_writer_type
- {
- SYSTEM_FILE, /* System file. */
- PORTABLE_FILE, /* Portable file. */
- SCRATCH_FILE /* Scratch file. */
- };
-
-/* Writer for any type of case-structured file. */
-struct any_writer
- {
- enum any_writer_type type; /* Type of file. */
- void *private; /* Private data. */
- };
-
/* Creates and returns a writer for HANDLE with the given DICT. */
-struct any_writer *
+struct casewriter *
any_writer_open (struct file_handle *handle, struct dictionary *dict)
{
switch (fh_get_referent (handle))
{
case FH_REF_FILE:
{
- struct any_writer *writer;
+ struct casewriter *writer;
char *extension;
- extension = fn_extension (fh_get_filename (handle));
+ extension = fn_extension (fh_get_file_name (handle));
str_lowercase (extension);
if (!strcmp (extension, ".por"))
- writer = any_writer_from_pfm_writer (
- pfm_open_writer (handle, dict, pfm_writer_default_options ()));
+ writer = pfm_open_writer (handle, dict,
+ pfm_writer_default_options ());
else
- writer = any_writer_from_sfm_writer (
- sfm_open_writer (handle, dict, sfm_writer_default_options ()));
+ writer = sfm_open_writer (handle, dict,
+ sfm_writer_default_options ());
free (extension);
return writer;
return NULL;
case FH_REF_SCRATCH:
- return any_writer_from_scratch_writer (scratch_writer_open (handle,
- dict));
+ return scratch_writer_open (handle, dict);
}
- abort ();
-}
-
-/* If PRIVATE is non-null, creates and returns a new any_writer,
- initializing its fields to TYPE and PRIVATE. If PRIVATE is a
- null pointer, just returns a null pointer. */
-static struct any_writer *
-make_any_writer (enum any_writer_type type, void *private)
-{
- if (private != NULL)
- {
- struct any_writer *writer = xmalloc (sizeof *writer);
- writer->type = type;
- writer->private = private;
- return writer;
- }
- else
- return NULL;
-}
-
-/* If SFM_WRITER is non-null, encapsulates SFM_WRITER in an
- any_writer and returns it. If SFM_WRITER is null, just
- returns a null pointer.
-
- Useful when you need to pass options to sfm_open_writer().
- Typical usage:
- any_writer_from_sfm_writer (sfm_open_writer (fh, dict, opts))
- If you don't need to pass options, then any_writer_open() by
- itself is easier and more straightforward. */
-struct any_writer *
-any_writer_from_sfm_writer (struct sfm_writer *sfm_writer)
-{
- return make_any_writer (SYSTEM_FILE, sfm_writer);
-}
-
-/* If PFM_WRITER is non-null, encapsulates PFM_WRITER in an
- any_writer and returns it. If PFM_WRITER is null, just
- returns a null pointer.
-
- Useful when you need to pass options to pfm_open_writer().
- Typical usage:
- any_writer_from_pfm_writer (pfm_open_writer (fh, dict, opts))
- If you don't need to pass options, then any_writer_open() by
- itself is easier and more straightforward. */
-struct any_writer *
-any_writer_from_pfm_writer (struct pfm_writer *pfm_writer)
-{
- return make_any_writer (PORTABLE_FILE, pfm_writer);
-}
-
-/* If SCRATCH_WRITER is non-null, encapsulates SCRATCH_WRITER in
- an any_writer and returns it. If SCRATCH_WRITER is null, just
- returns a null pointer.
-
- Not particularly useful. Included just for consistency. */
-struct any_writer *
-any_writer_from_scratch_writer (struct scratch_writer *scratch_writer)
-{
- return make_any_writer (SCRATCH_FILE, scratch_writer);
-}
-
-/* Writes cases C to WRITER.
- Returns true if successful, false on failure. */
-bool
-any_writer_write (struct any_writer *writer, const struct ccase *c)
-{
- switch (writer->type)
- {
- case SYSTEM_FILE:
- return sfm_write_case (writer->private, c);
-
- case PORTABLE_FILE:
- return pfm_write_case (writer->private, c);
-
- case SCRATCH_FILE:
- return scratch_writer_write_case (writer->private, c);
- }
- abort ();
-}
-
-/* Returns true if an I/O error has occurred on WRITER, false
- otherwise. */
-bool
-any_writer_error (const struct any_writer *writer)
-{
- switch (writer->type)
- {
- case SYSTEM_FILE:
- return sfm_write_error (writer->private);
-
- case PORTABLE_FILE:
- return pfm_write_error (writer->private);
-
- case SCRATCH_FILE:
- return scratch_writer_error (writer->private);
- }
- abort ();
-}
-
-/* Closes WRITER.
- Returns true if successful, false if an I/O error occurred. */
-bool
-any_writer_close (struct any_writer *writer)
-{
- if (writer == NULL)
- return true;
-
- switch (writer->type)
- {
- case SYSTEM_FILE:
- return sfm_close_writer (writer->private);
-
- case PORTABLE_FILE:
- return pfm_close_writer (writer->private);
-
- case SCRATCH_FILE:
- return scratch_writer_close (writer->private);
-
- default:
- abort ();
- }
+ NOT_REACHED ();
}
projects / pspp-builds.git / blobdiff