pintos-os.org Git - pspp/blob - src/output/spv-driver.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2019 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include "output/driver-provider.h"
  20
  21 #include <stdlib.h>
  22
  23 #include "data/file-handle-def.h"
  24 #include "libpspp/cast.h"
  25 #include "output/group-item.h"
  26 #include "output/page-setup-item.h"
  27 #include "output/table-item.h"
  28 #include "output/text-item.h"
  29 #include "output/spv/spv-writer.h"
  30
  31 #include "gl/xalloc.h"
  32
  33 #include "gettext.h"
  34 #define _(msgid) gettext (msgid)
  35
  36 struct spv_driver
  37   {
  38     struct output_driver driver;
  39     struct spv_writer *writer;
  40     struct file_handle *handle;
  41   };
  42
  43 static const struct output_driver_class spv_driver_class;
  44
  45 static struct spv_driver *
  46 spv_driver_cast (struct output_driver *driver)
  47 {
  48   assert (driver->class == &spv_driver_class);
  49   return UP_CAST (driver, struct spv_driver, driver);
  50 }
  51
  52 static struct output_driver *
  53 spv_create (struct file_handle *fh, enum settings_output_devices device_type,
  54              struct string_map *o UNUSED)
  55 {
  56   struct output_driver *d;
  57   struct spv_driver *spv;
  58
  59   spv = xzalloc (sizeof *spv);
  60   d = &spv->driver;
  61   spv->handle = fh;
  62   output_driver_init (&spv->driver, &spv_driver_class, fh_get_file_name (fh),
  63                       device_type);
  64
  65   char *error = spv_writer_open (fh_get_file_name (fh), &spv->writer);
  66   if (spv->writer == NULL)
  67     {
  68       msg (ME, "%s", error);
  69       goto error;
  70     }
  71
  72   return d;
  73
  74  error:
  75   fh_unref (fh);
  76   output_driver_destroy (d);
  77   return NULL;
  78 }
  79
  80 static void
  81 spv_destroy (struct output_driver *driver)
  82 {
  83   struct spv_driver *spv = spv_driver_cast (driver);
  84
  85   char *error = spv_writer_close (spv->writer);
  86   if (error)
  87     msg (ME, "%s", error);
  88   fh_unref (spv->handle);
  89   free (spv);
  90 }
  91
  92 static void
  93 spv_submit (struct output_driver *driver,
  94              const struct output_item *output_item)
  95 {
  96   struct spv_driver *spv = spv_driver_cast (driver);
  97
  98   if (is_group_open_item (output_item))
  99     spv_writer_open_heading (spv->writer,
 100                              to_group_open_item (output_item)->command_name,
 101                              to_group_open_item (output_item)->command_name);
 102   else if (is_group_close_item (output_item))
 103     spv_writer_close_heading (spv->writer);
 104   else if (is_table_item (output_item))
 105     {
 106       const struct table_item *table_item = to_table_item (output_item);
 107       if (table_item->pt)
 108         spv_writer_put_table (spv->writer, table_item->pt);
 109     }
 110   else if (is_text_item (output_item))
 111     spv_writer_put_text (spv->writer, to_text_item (output_item));
 112   else if (is_page_setup_item (output_item))
 113     spv_writer_set_page_setup (spv->writer,
 114                                to_page_setup_item (output_item)->page_setup);
 115 }
 116
 117 struct output_driver_factory spv_driver_factory =
 118   { "spv", "pspp.spv", spv_create };
 119
 120 static const struct output_driver_class spv_driver_class =
 121   {
 122     "spv",
 123     spv_destroy,
 124     spv_submit,
 125     NULL,
 126   };