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

[pspp] / src / language / commands / title.c

diff --git a/src/language/commands/title.c b/src/language/commands/title.c
new file mode 100644 (file)
index 0000000..8ad6a4a
--- /dev/null
+++ b/src/language/commands/title.c
@@ -0,0 +1,124 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 1997-9, 2000, 2007, 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 <ctype.h>
+#include <stdlib.h>
+
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/lexer/lexer.h"
+#include "language/lexer/token.h"
+#include "libpspp/message.h"
+#include "libpspp/start-date.h"
+#include "libpspp/version.h"
+#include "output/driver.h"
+
+#include "gl/c-ctype.h"
+#include "gl/xalloc.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+static int
+parse_title (struct lexer *lexer, void (*set_title) (const char *))
+{
+  if (lex_token (lexer) == T_STRING)
+    {
+      set_title (lex_tokcstr (lexer));
+      lex_get (lexer);
+    }
+  else
+    {
+      int start_ofs = lex_ofs (lexer);
+      while (lex_token (lexer) != T_ENDCMD)
+        lex_get (lexer);
+
+      /* Get the raw representation of all the tokens, including any space
+         between them, and use it as the title. */
+      char *title = lex_ofs_representation (lexer, start_ofs,
+                                            lex_ofs (lexer) - 1);
+      set_title (title);
+      free (title);
+    }
+  return CMD_SUCCESS;
+}
+
+int
+cmd_title (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+  return parse_title (lexer, output_set_title);
+}
+
+int
+cmd_subtitle (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+  return parse_title (lexer, output_set_subtitle);
+}
+
+/* Performs the FILE LABEL command. */
+int
+cmd_file_label (struct lexer *lexer, struct dataset *ds)
+{
+  if (!lex_force_string (lexer))
+    return CMD_FAILURE;
+
+  dict_set_label (dataset_dict (ds), lex_tokcstr (lexer));
+  lex_get (lexer);
+
+  return CMD_SUCCESS;
+}
+
+/* Performs the DOCUMENT command. */
+int
+cmd_document (struct lexer *lexer, struct dataset *ds)
+{
+  struct dictionary *dict = dataset_dict (ds);
+  char *trailer;
+
+  if (!lex_force_string (lexer))
+    return CMD_FAILURE;
+
+  while (lex_is_string (lexer))
+    {
+      dict_add_document_line (dict, lex_tokcstr (lexer), true);
+      lex_get (lexer);
+    }
+
+  trailer = xasprintf (_("   (Entered %s)"), get_start_date ());
+  dict_add_document_line (dict, trailer, true);
+  free (trailer);
+
+  return CMD_SUCCESS;
+}
+
+/* Performs the ADD DOCUMENTS command. */
+int
+cmd_add_documents (struct lexer *lexer, struct dataset *ds)
+{
+  return cmd_document (lexer, ds);
+}
+
+/* Performs the DROP DOCUMENTS command. */
+int
+cmd_drop_documents (struct lexer *lexer UNUSED, struct dataset *ds)
+{
+  dict_clear_documents (dataset_dict (ds));
+  return CMD_SUCCESS;
+}