lexer: Reimplement for better testability and internationalization.

[pspp-builds.git] / src / language / dictionary / weight.c

diff --git a/src/language/dictionary/weight.c b/src/language/dictionary/weight.c
index b6d63c972c33348861635fc27ceedeb2a3f257f7..ad06ad107af3ca1092802bfa8998c670eed20a37 100644 (file)
--- a/src/language/dictionary/weight.c
+++ b/src/language/dictionary/weight.c
@@ -1,61 +1,62 @@
-/* PSPP - computes sample statistics.
-   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
-   Written by Ben Pfaff <blp@gnu.org>.
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 1997-9, 2000, 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 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/>. */
 
 #include <config.h>
-#include "message.h"
+
 #include <stdio.h>
-#include "command.h"
-#include "dictionary.h"
-#include "message.h"
-#include "lexer.h"
-#include "str.h"
-#include "variable.h"
+
+#include "data/procedure.h"
+#include "data/dictionary.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/lexer/lexer.h"
+#include "language/lexer/variable-parser.h"
+#include "libpspp/message.h"
+#include "libpspp/str.h"
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
 
 int
-cmd_weight (void)
+cmd_weight (struct lexer *lexer, struct dataset *ds)
 {
-  if (lex_match_id ("OFF"))
-    dict_set_weight (default_dict, NULL);
+  struct dictionary *dict = dataset_dict (ds);
+  if (lex_match_id (lexer, "OFF"))
+    dict_set_weight (dataset_dict (ds), NULL);
   else
     {
       struct variable *v;
 
-      lex_match (T_BY);
-      v = parse_variable ();
+      lex_match (lexer, T_BY);
+      v = parse_variable (lexer, dict);
       if (!v)
        return CMD_CASCADING_FAILURE;
-      if (v->type == ALPHA)
+      if (var_is_alpha (v))
        {
          msg (SE, _("The weighting variable must be numeric."));
          return CMD_CASCADING_FAILURE;
        }
-      if (dict_class_from_id (v->name) == DC_SCRATCH)
+      if (dict_class_from_id (var_get_name (v)) == DC_SCRATCH)
        {
          msg (SE, _("The weighting variable may not be scratch."));
          return CMD_CASCADING_FAILURE;
        }
 
-      dict_set_weight (default_dict, v);
+      dict_set_weight (dict, v);
     }
 
-  return lex_end_of_command ();
+  return CMD_SUCCESS;
 }