source: bootcd/isolinux/syslinux-6.03/gpxe/src/include/cmdlinelib.h

/* Command line library */
#ifndef CMDLINELIB_H
#define CMDLINELIB_H

#define CMDL_BUFFER_SIZE 256
//#define CMDL_OUTPUT_SIZE 256
#define CMDL_PROMPT_SIZE 8
#define CMDL_MAX_TAB_COMPLETE_RESULT 256

typedef int (*cmdl_putchar_t)(int);
typedef int (*cmdl_printf_t)( const char *format, ... );
typedef int (*cmdl_getchar_t)();

#ifndef NULL
#define NULL    ((void *)0)
#endif

enum{
        CMDL_LEFT,
        CMDL_RIGHT
};

enum{
        CMDLK_FW=6,
        CMDLK_BW=2,
        CMDLK_BS=8,
        CMDLK_HOME=2,
        CMDLK_END=5,
        CMDLK_DELTOEND=11,
        CMDLK_DELARG=23,
        CMDLK_ENTER=0x0d,
        CMDLK_RETURN=0x0a,
        CMDLK_TAB=9
};

typedef struct{
        
        // buffers

        //char* output;
        char* buffer;
        char* prompt;

        // options and values

        int cursor;
        //int has_output;
        int exit;
        int refresh;
        int tabstate;
        int insert;

        // callbacks
        
        cmdl_putchar_t putchar;
        cmdl_getchar_t getchar;
        cmdl_printf_t printf;

}cmd_line;

typedef struct{
        int argc;
        char **argv;
}cmdl_param_list;

void cmdl_setputchar(cmd_line* cmd, cmdl_putchar_t in);
void cmdl_setgetchar(cmd_line* cmd, cmdl_getchar_t in);
void cmdl_setprintf(cmd_line* cmd, cmdl_printf_t in);

//void cmdl_builtin_help(cmd_line* cmd, char* command);

void cmdl_parsechar(cmd_line* cmd, char in);

void cmdl_addreplace(cmd_line* cmd, char in);
void cmdl_addinsert(cmd_line* cmd, char in);
void cmdl_enterloop(cmd_line* cmd);
void cmdl_exec(cmd_line* cmd);
void cmdl_setexit(cmd_line* cmd, int exit);
int cmdl_getexit(cmd_line* cmd);
void cmdl_clearoutput(cmd_line* cmd);
void cmdl_clearbuffer(cmd_line* cmd);
int cmdl_printf(cmd_line* cmd, const char *format, ...);
char* cmdl_getoutput(cmd_line* cmd);
//void cmdl_addoutput_str(cmd_line* cmd, char output[CMDL_OUTPUT_SIZE]);
void cmdl_addstr(cmd_line* cmd, char* str);
int cmdl_movecursor(cmd_line* cmd, int direction);
char* cmdl_getbuffer(cmd_line* cmd);
void cmdl_addchar(cmd_line* cmd, char in);
int cmdl_check(cmd_line* cmd);
void cmdl_del(cmd_line* cmd);
cmd_line* cmdl_create();
void cmdl_free(cmd_line* cmd);
char *cmdl_getprompt(cmd_line* cmd);
void cmdl_setpropmt(cmd_line* cmd, char prompt[CMDL_PROMPT_SIZE]);
cmdl_param_list* cmdl_getparams(const char* command);
void cmdl_tabcomplete(cmd_line *cmd);

#endif