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+/* -*-c-*- -------------- mixvm_loop.c :
+ * Implementation of mix vm command loop.
+ * ------------------------------------------------------------------
+ * Copyright (C) 2000 jose antonio ortega ruiz <jaortega@acm.org>
+ *
+ * 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+
+
+#include <mixlib/mix.h>
+#include <stdio.h>
+#include <readline/readline.h>
+#include <readline/history.h>
+#include "mixvm_command.h"
+
+/* A static variable for holding the line. */
+static char *line_read = (char *)NULL;
+static const char *PROMPT = N_("MIX > ");
+
+/* Read a string, and return a pointer to it. Returns NULL on EOF. */
+static char *
+rl_gets ()
+{
+ /* If the buffer has already been allocated, return the memory
+ to the free pool. */
+ if (line_read)
+ {
+ g_free (line_read);
+ line_read = (char *)NULL;
+ }
+
+ /* Get a line from the user. */
+ line_read = readline ((char *)PROMPT);
+
+ /* If the line has any text in it, save it on the history. */
+ if (line_read && *line_read)
+ add_history (line_read);
+
+ return (line_read);
+}
+
+
+/* The main command loop of the virtual machine */
+void
+mix_vmloop (const gchar *file)
+{
+ mixvm_cmd_init ((char *)file);
+ while ( mixvm_cmd_exec (rl_gets ()) )
+ ;
+}
+
+