+/* * Control types for commands. */
+
+enum misc_command_type
+{
+ ok_command,
+ end_command,
+ else_command,
+ nop_command
+};
+
+enum command_control_type
+{
+ simple_control,
+ break_control,
+ continue_control,
+ while_control,
+ if_control,
+ commands_control,
+ python_control,
+ compile_control,
+ guile_control,
+ while_stepping_control,
+ invalid_control
+};
+
+/* * Structure for saved commands lines (for breakpoints, defined
+ commands, etc). */
+
+struct command_line
+{
+ struct command_line *next;
+ char *line;
+ enum command_control_type control_type;
+ union
+ {
+ struct
+ {
+ enum compile_i_scope_types scope;
+ void *scope_data;
+ }
+ compile;
+ }
+ control_u;
+ /* * The number of elements in body_list. */
+ int body_count;
+ /* * For composite commands, the nested lists of commands. For
+ example, for "if" command this will contain the then branch and
+ the else branch, if that is available. */
+ struct command_line **body_list;
+};
+
+extern void free_command_lines (struct command_line **);
+
+/* A deleter for command_line that calls free_command_lines. */
+
+struct command_lines_deleter
+{
+ void operator() (command_line *cmd_lines) const
+ {
+ free_command_lines (&cmd_lines);
+ }
+};
+
+/* A unique pointer to a command_line. */
+
+typedef std::unique_ptr<command_line, command_lines_deleter> command_line_up;
+
+extern command_line_up read_command_lines (char *, int, int,
+ void (*)(char *, void *),
+ void *);
+extern command_line_up read_command_lines_1 (char * (*) (void), int,
+ void (*)(char *, void *),
+ void *);
+
+