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

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

diff --git a/src/language/commands/cd.c b/src/language/commands/cd.c
new file mode 100644 (file)
index 0000000..d82ce40
--- /dev/null
+++ b/src/language/commands/cd.c
@@ -0,0 +1,61 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2008, 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 "language/command.h"
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "language/lexer/lexer.h"
+#include "libpspp/i18n.h"
+#include "libpspp/message.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+/* Parses the CD command. */
+int
+cmd_cd (struct lexer *lexer, struct dataset *ds UNUSED)
+{
+  char  *path = 0;
+
+  if (! lex_force_string (lexer))
+    goto error;
+
+  path = utf8_to_filename (lex_tokcstr (lexer));
+
+  if (-1 == chdir (path))
+    {
+      int err = errno;
+      lex_error (lexer, _("Cannot change directory to %s: %s"), path,
+                 strerror (err));
+      goto error;
+    }
+
+  free (path);
+  lex_get (lexer);
+
+  return CMD_SUCCESS;
+
+ error:
+
+  free(path);
+
+  return CMD_FAILURE;
+}
+