#ifndef __CMD_H
#define __CMD_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "debug.h"
#include "queue.h"
#define CMDT_NONE 0
#define CMDT_INT 1
#define CMDT_HEX 2
#define CMDT_BIN 3
#define CMDT_QSTR 4
#define CMDT_STR 5
#define CMDT_WORD 6
#define CMDT_SP 7
#define CMDE_NONE 0 //do nothing
#define CMDE_AUTOCOMPLETE 1 //try to auto complete first command
#define CMDE_ALIAS 2 //command aliases
#define CMD_EOK 0 //all ok
#define CMD_EEXE 1 //command execution error
#define CMD_ECMD 2 //unknown command
#define CMD_HISTORY_SIZE 16 //fixed size history
/*
Arch
[CLI]------->[PARSE]
[FILE]----/
[PARSE]-------->[[EXEC]->[HISTORY] other extra features]
[CMDLIST]----/
*/
/*
Token list that comes from parser
*/
typedef struct cmd_tok_t
{
char *s,*e;
int sz;
int type;
struct cmd_tok_t *next;
} cmd_tok_t;
/*
Argument list passed to callback cmd functions
*/
typedef struct cmd_arg_t
{
int argc;
char **argv;
int *type;
/* bad practice stuff */
int __sub_cmd; // if 1 then dont free argv stuff
} cmd_arg_t;
/*
Table of defined commands
*/
typedef struct cmd_table_t
{
char *cmd;
int (*clb)(cmd_arg_t*); //callback to command
int (*hlp)(cmd_arg_t*); //help command
int (*pre)(cmd_arg_t*); //preconditions for execution
int (*autocpl)(cmd_arg_t*); //autocomplete according to context
} cmd_table_t;
/*
autocomplete suggestions from command list. Used for autcomplet "<TAB>"
*/
struct cmd_acq_t
{
char *suggestion;
SLIST_ENTRY(cmd_acq_t) next_sugg;
};
SLIST_HEAD(cmd_acq_head_t,cmd_acq_t);
/*
Contain all non cli parsing execution things.
Manage history and logging
Manage command loading from file
Manage autocomplete
*/
typedef struct cmd_mng_t
{
int flag_history;
/*simple que*/
int history_size;
char *history[CMD_HISTORY_SIZE];
//not yet ready
//int flag_logging;
// flag turn on/off autocomplete
int flag_autocomplete;
cmd_table_t *table;
} cmd_mng_t;
cmd_tok_t* cmd_tok_create( char *s, char *e, int sz, int type );
int cmd_tok_add( cmd_tok_t *tok, cmd_tok_t *next );
int cmd_tok_print( cmd_tok_t *tok );
void cmd_tok_destroy( cmd_tok_t *tok ); //clean token by ->next token
int cmd_tok_count( cmd_tok_t *tok );
cmd_arg_t* cmd_arg_create( cmd_tok_t *tok );
cmd_arg_t* cmd_arg_sub( cmd_arg_t *arg ); //just return without first arg
cmd_arg_t* cmd_arg_sub_empty();
void cmd_arg_destroy( cmd_arg_t *arg );
int cmd_exec( cmd_table_t *tbl, cmd_arg_t *arg );
int cmd_exec_ev( cmd_table_t *tbl, cmd_arg_t *arg, int event ); //auto complete and all other
char* cmd_ac( cmd_table_t *tbl, const char *s ); //autocomplete
struct cmd_acq_head_t* cmd_acq( cmd_table_t *tbl, const char *s ); //autocomplete
void cmd_acq_free( struct cmd_acq_head_t *acq );
/*
If history is on.
PARAM:
cmng - cli manager
index - index value in history
RETURN:
return non-NULL value if there something
*/
char* cmd_mng_history( cmd_mng_t *cmng, int index );
/*
PARAM:
cmng
cmd - non complete command, not to execute, seach for suggestions
RETURN:
[FREE] return string list of autocomplete commands
*/
char* cmd_mng_autocomplete( cmd_mng_t *cmng, char *cmd, size_t cmd_sz );
/*
PARAM:
cmng
cmd - command to execute expect NULL at the end
RETURN:
return result of execution
*/
int cmd_mng_exec( cmd_mng_t *cmng, const char *cmd, size_t sz_cmd );
/*
Free resources that where givent to cmd manager, like history
*/
int cmd_mng_free( cmd_mng_t *cmng);
#define STR_AC_EQ(A,B) (strncmp_ac((A),(B),strlen(A))==(strlen(A)+1))
#define STR_AC_PEQ(A,B) (strncmp_ac((A),(B),strlen(A))<(strlen(A)))
/*
Clothest match function
AA AB = (1) equile <100%
AA AA = (3) equite 100%
AA AAA = (2) equile 100% but there is more
A B = (0) not equile at all
*/
int strncmp_ac( const char *s1, const char *s2, const int n);
#endif
