- /* Header file for command creation.
- Copyright (C) 1986-2015 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/>. */
- #if !defined (COMMAND_H)
- #define COMMAND_H 1
- #include "gdb_vecs.h"
- /* This file defines the public interface for any code wanting to
- create commands. */
- /* Command classes are top-level categories into which commands are
- broken down for "help" purposes.
- Notes on classes: class_alias is for alias commands which are not
- abbreviations of the original command. class-pseudo is for
- commands which are not really commands nor help topics ("stop"). */
- enum command_class
- {
- /* Special args to help_list */
- class_deprecated = -3, all_classes = -2, all_commands = -1,
- /* Classes of commands */
- no_class = -1, class_run = 0, class_vars, class_stack, class_files,
- class_support, class_info, class_breakpoint, class_trace,
- class_alias, class_bookmark, class_obscure, class_maintenance,
- class_pseudo, class_tui, class_user, class_xdb,
- no_set_class /* Used for "show" commands that have no corresponding
- "set" command. */
- };
- /* FIXME: cagney/2002-03-17: Once cmd_type() has been removed, ``enum
- cmd_types'' can be moved from "command.h" to "cli-decode.h". */
- /* Not a set/show command. Note that some commands which begin with
- "set" or "show" might be in this category, if their syntax does
- not fall into one of the following categories. */
- typedef enum cmd_types
- {
- not_set_cmd,
- set_cmd,
- show_cmd
- }
- cmd_types;
- /* Types of "set" or "show" command. */
- typedef enum var_types
- {
- /* "on" or "off". *VAR is an integer which is nonzero for on,
- zero for off. */
- var_boolean,
- /* "on" / "true" / "enable" or "off" / "false" / "disable" or
- "auto. *VAR is an ``enum auto_boolean''. NOTE: In general a
- custom show command will need to be implemented - one that for
- "auto" prints both the "auto" and the current auto-selected
- value. */
- var_auto_boolean,
- /* Unsigned Integer. *VAR is an unsigned int. The user can type
- 0 to mean "unlimited", which is stored in *VAR as UINT_MAX. */
- var_uinteger,
- /* Like var_uinteger but signed. *VAR is an int. The user can
- type 0 to mean "unlimited", which is stored in *VAR as
- INT_MAX. The only remaining use of it is the Python API.
- Don't use it elsewhere. */
- var_integer,
- /* String which the user enters with escapes (e.g. the user types
- \n and it is a real newline in the stored string).
- *VAR is a malloc'd string, or NULL if the string is empty. */
- var_string,
- /* String which stores what the user types verbatim.
- *VAR is a malloc'd string, or NULL if the string is empty. */
- var_string_noescape,
- /* String which stores a filename. (*VAR) is a malloc'd string,
- or "" if the string was empty. */
- var_optional_filename,
- /* String which stores a filename. (*VAR) is a malloc'd
- string. */
- var_filename,
- /* ZeroableInteger. *VAR is an int. Like var_integer except
- that zero really means zero. */
- var_zinteger,
- /* ZeroableUnsignedInteger. *VAR is an unsigned int. Zero really
- means zero. */
- var_zuinteger,
- /* ZeroableUnsignedInteger with unlimited value. *VAR is an int,
- but its range is [0, INT_MAX]. -1 stands for unlimited and
- other negative numbers are not allowed. */
- var_zuinteger_unlimited,
- /* Enumerated type. Can only have one of the specified values.
- *VAR is a char pointer to the name of the element that we
- find. */
- var_enum
- }
- var_types;
- /* This structure records one command'd definition. */
- struct cmd_list_element;
- typedef void cmd_cfunc_ftype (char *args, int from_tty);
- /* Forward-declarations of the entry-points of cli/cli-decode.c. */
- /* API to the manipulation of command lists. */
- extern int valid_user_defined_cmd_name_p (const char *name);
- extern struct cmd_list_element *add_cmd (const char *, enum command_class,
- cmd_cfunc_ftype *fun,
- const char *,
- struct cmd_list_element **);
- extern struct cmd_list_element *add_alias_cmd (const char *, const char *,
- enum command_class, int,
- struct cmd_list_element **);
- extern struct cmd_list_element *add_prefix_cmd (const char *, enum command_class,
- cmd_cfunc_ftype *fun,
- const char *,
- struct cmd_list_element **,
- const char *, int,
- struct cmd_list_element **);
- extern struct cmd_list_element *add_abbrev_prefix_cmd (const char *,
- enum command_class,
- cmd_cfunc_ftype *fun,
- const char *,
- struct cmd_list_element
- **, const char *, int,
- struct cmd_list_element
- **);
- /* Set the commands corresponding callback. */
- extern void set_cmd_cfunc (struct cmd_list_element *cmd,
- cmd_cfunc_ftype *cfunc);
- typedef void cmd_sfunc_ftype (char *args, int from_tty,
- struct cmd_list_element *c);
- extern void set_cmd_sfunc (struct cmd_list_element *cmd,
- cmd_sfunc_ftype *sfunc);
- typedef VEC (char_ptr) *completer_ftype (struct cmd_list_element *,
- const char *, const char *);
- typedef void completer_ftype_void (struct cmd_list_element *,
- const char *, const char *);
- extern void set_cmd_completer (struct cmd_list_element *, completer_ftype *);
- /* Set the completer_handle_brkchars callback. */
- extern void set_cmd_completer_handle_brkchars (struct cmd_list_element *,
- completer_ftype_void *);
- /* HACK: cagney/2002-02-23: Code, mostly in tracepoints.c, grubs
- around in cmd objects to test the value of the commands sfunc(). */
- extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
- cmd_cfunc_ftype *cfun);
- /* Each command object has a local context attached to it. */
- extern void set_cmd_context (struct cmd_list_element *cmd,
- void *context);
- extern void *get_cmd_context (struct cmd_list_element *cmd);
- /* Execute CMD's pre/post hook. Throw an error if the command fails.
- If already executing this pre/post hook, or there is no pre/post
- hook, the call is silently ignored. */
- extern void execute_cmd_pre_hook (struct cmd_list_element *cmd);
- extern void execute_cmd_post_hook (struct cmd_list_element *cmd);
- /* Return the type of the command. */
- extern enum cmd_types cmd_type (struct cmd_list_element *cmd);
- /* Flag for an ambiguous cmd_list result. */
- #define CMD_LIST_AMBIGUOUS ((struct cmd_list_element *) -1)
- extern struct cmd_list_element *lookup_cmd (const char **,
- struct cmd_list_element *, char *,
- int, int);
- extern struct cmd_list_element *lookup_cmd_1 (const char **,
- struct cmd_list_element *,
- struct cmd_list_element **,
- int);
- extern struct cmd_list_element *deprecate_cmd (struct cmd_list_element *,
- const char * );
- extern void deprecated_cmd_warning (const char *);
- extern int lookup_cmd_composition (const char *text,
- struct cmd_list_element **alias,
- struct cmd_list_element **prefix_cmd,
- struct cmd_list_element **cmd);
- extern struct cmd_list_element *add_com (const char *, enum command_class,
- cmd_cfunc_ftype *fun,
- const char *);
- extern struct cmd_list_element *add_com_alias (const char *, const char *,
- enum command_class, int);
- extern struct cmd_list_element *add_info (const char *,
- cmd_cfunc_ftype *fun,
- const char *);
- extern struct cmd_list_element *add_info_alias (const char *, const char *,
- int);
- extern VEC (char_ptr) *complete_on_cmdlist (struct cmd_list_element *,
- const char *, const char *, int);
- extern VEC (char_ptr) *complete_on_enum (const char *const *enumlist,
- const char *, const char *);
- /* Functions that implement commands about CLI commands. */
- extern void help_list (struct cmd_list_element *, const char *,
- enum command_class, struct ui_file *);
- /* Method for show a set/show variable's VALUE on FILE. If this
- method isn't supplied deprecated_show_value_hack() is called (which
- is not good). */
- typedef void (show_value_ftype) (struct ui_file *file,
- int from_tty,
- struct cmd_list_element *cmd,
- const char *value);
- /* NOTE: i18n: This function is not i18n friendly. Callers should
- instead print the value out directly. */
- extern show_value_ftype deprecated_show_value_hack;
- extern void add_setshow_enum_cmd (const char *name,
- enum command_class class,
- const char *const *enumlist,
- const char **var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_auto_boolean_cmd (const char *name,
- enum command_class class,
- enum auto_boolean *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_boolean_cmd (const char *name,
- enum command_class class,
- int *var,
- const char *set_doc, const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_filename_cmd (const char *name,
- enum command_class class,
- char **var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_string_cmd (const char *name,
- enum command_class class,
- char **var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern struct cmd_list_element *add_setshow_string_noescape_cmd
- (const char *name,
- enum command_class class,
- char **var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_optional_filename_cmd (const char *name,
- enum command_class class,
- char **var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_integer_cmd (const char *name,
- enum command_class class,
- int *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_uinteger_cmd (const char *name,
- enum command_class class,
- unsigned int *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_zinteger_cmd (const char *name,
- enum command_class class,
- int *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void add_setshow_zuinteger_cmd (const char *name,
- enum command_class class,
- unsigned int *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- extern void
- add_setshow_zuinteger_unlimited_cmd (const char *name,
- enum command_class class,
- int *var,
- const char *set_doc,
- const char *show_doc,
- const char *help_doc,
- cmd_sfunc_ftype *set_func,
- show_value_ftype *show_func,
- struct cmd_list_element **set_list,
- struct cmd_list_element **show_list);
- /* Do a "show" command for each thing on a command list. */
- extern void cmd_show_list (struct cmd_list_element *, int, const char *);
- /* Used everywhere whenever at least one parameter is required and
- none is specified. */
- extern void error_no_arg (const char *) ATTRIBUTE_NORETURN;
- extern void dont_repeat (void);
- extern struct cleanup *prevent_dont_repeat (void);
- /* Used to mark commands that don't do anything. If we just leave the
- function field NULL, the command is interpreted as a help topic, or
- as a class of commands. */
- extern void not_just_help_class_command (char *, int);
- /* Check function pointer. */
- extern int cmd_func_p (struct cmd_list_element *cmd);
- /* Call the command function. */
- extern void cmd_func (struct cmd_list_element *cmd,
- char *args, int from_tty);
- #endif /* !defined (COMMAND_H) */