Move all command implementations into a single 'commands' directory.

[pspp] / src / language / xforms / select-if.c

diff --git a/src/language/xforms/select-if.c b/src/language/xforms/select-if.c
deleted file mode 100644 (file)
index 2648f9f..0000000
--- a/src/language/xforms/select-if.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2009, 2010, 2011 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 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.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-#include <stdlib.h>
-
-#include "data/dataset.h"
-#include "data/dictionary.h"
-#include "data/transformations.h"
-#include "data/variable.h"
-#include "language/command.h"
-#include "language/expressions/public.h"
-#include "language/lexer/lexer.h"
-#include "language/lexer/variable-parser.h"
-#include "libpspp/message.h"
-#include "libpspp/str.h"
-
-#include "gl/xalloc.h"
-
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-
-/* SELECT IF transformation. */
-struct select_if_trns
-  {
-    struct expression *e;      /* Test expression. */
-  };
-
-static const struct trns_class select_if_trns_class;
-
-/* Parses the SELECT IF transformation. */
-int
-cmd_select_if (struct lexer *lexer, struct dataset *ds)
-{
-  struct expression *e;
-  struct select_if_trns *t;
-
-  e = expr_parse_bool (lexer, ds);
-  if (!e)
-    return CMD_CASCADING_FAILURE;
-
-  if (lex_token (lexer) != T_ENDCMD)
-    {
-      expr_free (e);
-      lex_error (lexer, _("Syntax error expecting end of command."));
-      return CMD_CASCADING_FAILURE;
-    }
-
-  t = xmalloc (sizeof *t);
-  t->e = e;
-  add_transformation (ds, &select_if_trns_class, t);
-
-  return CMD_SUCCESS;
-}
-
-/* Performs the SELECT IF transformation T on case C. */
-static enum trns_result
-select_if_proc (void *t_, struct ccase **c,
-                casenumber case_num)
-{
-  struct select_if_trns *t = t_;
-  return (expr_evaluate_num (t->e, *c, case_num) == 1.0
-          ? TRNS_CONTINUE : TRNS_DROP_CASE);
-}
-
-/* Frees SELECT IF transformation T. */
-static bool
-select_if_free (void *t_)
-{
-  struct select_if_trns *t = t_;
-  expr_free (t->e);
-  free (t);
-  return true;
-}
-
-static const struct trns_class select_if_trns_class = {
-  .name = "SELECT IF",
-  .execute = select_if_proc,
-  .destroy = select_if_free,
-};
-
-/* Parses the FILTER command. */
-int
-cmd_filter (struct lexer *lexer, struct dataset *ds)
-{
-  struct dictionary *dict = dataset_dict (ds);
-  if (lex_match_id (lexer, "OFF"))
-    dict_set_filter (dict, NULL);
-  else if (lex_match (lexer, T_BY))
-    {
-      struct variable *v = parse_variable (lexer, dict);
-      if (!v)
-       return CMD_FAILURE;
-
-      if (var_is_alpha (v))
-       {
-         lex_next_error (lexer, -1, -1,
-                          _("The filter variable must be numeric."));
-         return CMD_FAILURE;
-       }
-
-      if (dict_class_from_id (var_get_name (v)) == DC_SCRATCH)
-       {
-         lex_next_error (lexer, -1, -1,
-                          _("The filter variable may not be scratch."));
-         return CMD_FAILURE;
-       }
-
-      dict_set_filter (dict, v);
-    }
-  else
-    {
-      lex_error_expecting (lexer, "OFF", "BY");
-      return CMD_FAILURE;
-    }
-
-  return CMD_SUCCESS;
-}