editor.c File Reference

#include "../io/vga.h"
#include "../lib/utils.h"
#include "editor.h"
#include "../io/cm.h"
#include "../fs/fs.h"
#include "../io/kb.h"
#include "../lib/pit.h"

Include dependency graph for editor.c:

Go to the source code of this file.

Macros
#define	MAX_LINES   32
#define	MAX_LINE_LEN   80

Functions
static void	editor_display (const char *filename)
	editor_display renders the editor interface to the screen
static void	editor_load (const char *filename)
	editor_load loads a files contents into the editor buffer
static void	editor_save (const char *filename)
	editor_save writes the editor buffer to the filesystem
void	__editor (const char *filename)
	a simple multiline text editor

Variables
arena_t *	fs_arena
	the filesystem child arena
static char	lines [32][80+1]
static int	line_count = 0

Macro Definition Documentation

MAX_LINE_LEN

#define MAX_LINE_LEN   80

Definition at line 11 of file editor.c.

Referenced by __editor(), editor_load(), and editor_save().

MAX_LINES

#define MAX_LINES   32

Definition at line 10 of file editor.c.

Referenced by __editor(), editor_load(), and editor_save().

Function Documentation

__editor()

void __editor

(

const char *

filename

)

a simple multiline text editor

to call this editor simply use

#include "../usr/editor.h" //or simply editor.h
editor(filename); //fill in the file to edit

and it will automatically break back to your loop or func (not exit)

Definition at line 120 of file editor.c.

References clscr, cob, delay, editor_display(), editor_load(), editor_save(), gtchr, line_count, lines, MAX_LINE_LEN, MAX_LINES, NULL, prt, and rdln.

editor_display()

void editor_display ( const char * filename )

static

editor_display renders the editor interface to the screen

editor_display is a static function that clears the screen and draws the editor header, hotkeys bar, and all current lines

Parameters

filename,the

name of the file being edited

See also

editor(), editor_load()

Definition at line 27 of file editor.c.

References clscr, cob, line_count, lines, and prt.

Referenced by __editor().

editor_load()

void editor_load ( const char * filename )

static

editor_load loads a files contents into the editor buffer

editor_load is a static function that reads a file from the filesystem and splits its content into lines for editing

Parameters

filename,the

name of the file to load

See also

editor_display(), editor_save(), fsread()

Definition at line 50 of file editor.c.

References fsread, line_count, lines, MAX_LINE_LEN, MAX_LINES, and NULL.

Referenced by __editor().

editor_save()

void editor_save ( const char * filename )

static

editor_save writes the editor buffer to the filesystem

editor_save is a static function that joins all lines with newlines and writes the combined content to disk as a file

Parameters

filename,the

name of the file to save to

See also

editor_load(), fswrite()

Definition at line 88 of file editor.c.

References fs_arena, fswrite, line_count, lines, MAX_LINE_LEN, MAX_LINES, and prt.

Referenced by __editor().

Variable Documentation

fs_arena

arena_t* fs_arena

extern

the filesystem child arena

fs_arena is a 256kb arena allocated from kheap and used for filesystem operations like storing filenames and file data

See also

kheap, cmd_arena, anew()

Definition at line 56 of file main.c.

line_count

int line_count = 0

static

Definition at line 16 of file editor.c.

Referenced by __editor(), editor_display(), editor_load(), and editor_save().

lines

char lines[32][80+1]

static

Definition at line 15 of file editor.c.

Referenced by __editor(), __shell(), cmd_readfile(), editor_display(), editor_load(), and editor_save().