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/*
* cmd.h - definitions for command parser
*/
/*
* Copyright (C) 2004, 2010, 2011, 2013, 2014, 2017, 2021,
* the Free Software Foundation, Inc.
*
* This file is part of GAWK, the GNU implementation of the
* AWK Programming Language.
*
* GAWK 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.
*
* GAWK 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifdef HAVE_LIBREADLINE
#include <readline/readline.h>
#include <readline/history.h>
extern char **command_completion(const char *text, int start, int end);
extern void initialize_pager(FILE *fp); /* debug.c */
extern NODE *get_function(void);
#else
#define initialize_pager(x) /* nothing */
#define add_history(x) /* nothing */
#endif
extern int gprintf(FILE *fp, const char *format, ...);
extern jmp_buf pager_quit_tag;
extern int pager_quit_tag_valid;
extern bool output_is_tty;
extern int input_fd;
extern bool input_from_tty;
extern FILE *out_fp;
extern const char *dbg_prompt;
extern const char *commands_prompt;
extern const char *eval_prompt;
extern const char *dgawk_prompt;
enum argtype {
D_illegal,
/* commands */
D_backtrace,
D_break,
D_clear,
D_commands,
D_condition,
D_continue,
D_delete,
D_disable,
D_display,
D_down,
D_dump,
D_enable,
D_end,
D_eval,
D_finish,
D_frame,
D_help,
D_ignore,
D_info,
D_list,
D_next,
D_nexti,
D_option,
D_print,
D_printf,
D_quit,
D_return,
D_run,
D_save,
D_set,
D_silent,
D_source,
D_step,
D_stepi,
D_tbreak,
D_trace,
D_undisplay,
D_until,
D_unwatch,
D_up,
D_watch,
/* arguments */
D_argument,
D_int,
D_string,
D_variable,
D_node,
D_field,
D_array,
D_subscript,
D_func,
D_range
};
/* non-number arguments to commands */
enum nametypeval {
A_NONE = 0,
A_ARGS,
A_BREAK,
A_DEL,
A_DISPLAY,
A_FRAME,
A_FUNCTIONS,
A_LOCALS,
A_ONCE,
A_SOURCE,
A_SOURCES,
A_TRACE_ON,
A_TRACE_OFF,
A_VARIABLES,
A_WATCH
};
typedef struct cmd_argument {
struct cmd_argument *next;
enum argtype type;
union {
long lval;
char *sval;
NODE *nodeval;
} value;
#define a_int value.lval /* type = D_int or D_range */
#define a_argument value.lval /* type = D_argument */
#define a_string value.sval /* type = D_string, D_array, D_subscript or D_variable */
#define a_node value.nodeval /* type = D_node, D_field or D_func */
int a_count; /* subscript count for D_subscript and D_array */
} CMDARG;
typedef int (*Func_cmd)(CMDARG *, int);
struct cmdtoken {
const char *name;
const char *abbrvn; /* abbreviation */
enum argtype type;
int lex_class;
Func_cmd cf_ptr;
const char *help_txt;
};
/* command.c */
extern void free_cmdarg(CMDARG *list);
extern Func_cmd get_command(int ctype);
extern const char *get_command_name(int ctype);
/* debug.c */
extern void d_error(const char *mesg, ...);
/* command.c */
extern int find_option(char *name);
extern void option_help(void);
extern char *(*read_a_line)(const char *prompt);
extern char *read_commands_string(const char *prompt);
extern int in_cmd_src(const char *);
extern int get_eof_status(void);
extern void push_cmd_src(int fd, bool istty, char * (*readfunc)(const char *),
int (*closefunc)(int), int cmd, int eofstatus);
extern int pop_cmd_src(void);
extern int has_break_or_watch_point(int *pnum, bool any);
extern int do_list(CMDARG *arg, int cmd);
extern int do_info(CMDARG *arg, int cmd);
extern int do_print_var(CMDARG *arg, int cmd);
extern int do_backtrace(CMDARG *arg, int cmd);
extern int do_breakpoint(CMDARG *arg, int cmd);
extern int do_tmp_breakpoint(CMDARG *arg, int cmd);
extern int do_delete_breakpoint(CMDARG *arg, int cmd);
extern int do_enable_breakpoint(CMDARG *arg, int cmd);
extern int do_disable_breakpoint(CMDARG *arg, int cmd) ;
extern int do_ignore_breakpoint(CMDARG *arg, int cmd) ;
extern int do_run(CMDARG *arg, int cmd);
extern int do_quit(CMDARG *arg, int cmd);
extern int do_continue(CMDARG *arg, int cmd);
extern int do_step(CMDARG *arg, int cmd) ;
extern int do_stepi(CMDARG *arg, int cmd) ;
extern int do_next(CMDARG *arg, int cmd);
extern int do_nexti(CMDARG *arg, int cmd);
extern int do_clear(CMDARG *arg, int cmd);
extern int do_finish(CMDARG *arg, int cmd) ;
extern int do_help(CMDARG *arg, int cmd) ;
extern int do_up(CMDARG *arg, int cmd);
extern int do_down(CMDARG *arg, int cmd);
extern int do_frame(CMDARG *arg, int cmd);
extern int do_until(CMDARG *arg, int cmd);
extern int do_set_var(CMDARG *arg, int cmd);
extern int do_return(CMDARG *arg, int cmd);
extern int do_display(CMDARG *arg, int cmd);
extern int do_undisplay(CMDARG *arg, int cmd);
extern int do_watch(CMDARG *arg, int cmd);
extern int do_unwatch(CMDARG *arg, int cmd);
extern int do_dump_instructions(CMDARG *arg, int cmd);
extern int do_trace_instruction(CMDARG *arg, int cmd);
extern int do_option(CMDARG *arg, int cmd);
extern int do_commands(CMDARG *arg, int cmd);
extern int do_print_f(CMDARG *arg, int cmd);
extern int do_source(CMDARG *arg, int cmd);
extern int do_save(CMDARG *arg, int cmd);
extern int do_eval(CMDARG *arg, int cmd);
extern int do_condition(CMDARG *arg, int cmd);
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