kshell.c File Reference

#include "kshell.h"
#include <ctype.h>
#include <stddef.h>
#include "console.h"
#include "io.h"
#include "keyboard.h"
#include "keymap.h"
#include "kshell_cmds.h"
#include "string.h"

Macros
#define	KSHELL_MAX_ARGS   64
	The maximum number of arguments.
#define	KSHELL_MAX_ARG_LEN   256
	The maximum length of an argument.
#define	KSHELL_MAX_LINE_LEN   80
	The maximum length of a command line.
#define	KSHELL_MAX_HISTORY_LEN   1000
	The shell's maximum history length.

Functions
static void	parse_cmd (putchar putc, char *line)
	Processes a line.
static void	process_line (putchar putc)
	Reads a line and processes it.
void	shell_loop (putchar putc)
	Runs the shell loop.
void	putchars (putchar putc, const char *str)
	Writes a string of characters to the console.

Variables
static const char *	WHITESPACES = " \t\n\r"
static char	kshell_history [KSHELL_MAX_HISTORY_LEN]
static uint16_t	kshell_history_length = 0

Macro Definition Documentation

KSHELL_MAX_ARG_LEN

#define KSHELL_MAX_ARG_LEN   256

The maximum length of an argument.

KSHELL_MAX_ARGS

#define KSHELL_MAX_ARGS   64

The maximum number of arguments.

KSHELL_MAX_HISTORY_LEN

#define KSHELL_MAX_HISTORY_LEN   1000

The shell's maximum history length.

KSHELL_MAX_LINE_LEN

#define KSHELL_MAX_LINE_LEN   80

The maximum length of a command line.

Function Documentation

parse_cmd()

static void parse_cmd ( putchar  putc, char *  line  )

static

Processes a line.

Parameters

putc	The putchar function.
line	Line to be parsed.

Note

Arbitrary choice of max arguments and token sizes, should be rewritten later (when we have malloc?)

process_line()

static void process_line ( putchar  putc )

static

Reads a line and processes it.

Parameters

putc	The putchar function.

putchars()

void putchars	(	putchar	putc,
		const char *	str
	)

Writes a string of characters to the console.

Parameters

putc	The putchar function.
str	String to be written.

shell_loop()

void shell_loop

(

void(*)(char)

putc

)

Runs the shell loop.

Parameters

putc	The putchar function.

Variable Documentation

kshell_history

char kshell_history[KSHELL_MAX_HISTORY_LEN]

static

kshell_history_length

uint16_t kshell_history_length = 0

static

WHITESPACES

const char* WHITESPACES = " \t\n\r"

static