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#ifndef EDITOR_H
#define EDITOR_H
#include <stddef.h>
#include <regex.h>
#include "text-motions.h"
#include "text-objects.h"
#include "window.h"
#include "register.h"
typedef struct Editor Editor;
typedef struct EditorWin EditorWin;
struct EditorWin {
Editor *editor; /* editor instance to which this window belongs */
Text *text; /* underlying text management */
Win *win; /* vis window for the text area */
WINDOW *statuswin; /* curses window for the statusbar */
int width, height; /* window size including the statusbar */
EditorWin *prev, *next; /* neighbouring windows */
};
typedef struct {
EditorWin *win; /* 1-line height editor window used for the prompt */
EditorWin *editor; /* active editor window before prompt is shown */
char *title; /* title displayed to the left of the prompt */
WINDOW *titlewin; /* the curses window holding the prompt title */
bool active; /* whether the prompt is currently shown or not */
} Prompt;
typedef void (*editor_statusbar_t)(WINDOW *win, bool active, const char *filename, size_t line, size_t col);
enum Reg {
REG_a,
REG_b,
REG_c,
REG_d,
REG_e,
REG_f,
REG_g,
REG_h,
REG_i,
REG_j,
REG_k,
REG_l,
REG_m,
REG_n,
REG_o,
REG_p,
REG_q,
REG_r,
REG_s,
REG_t,
REG_u,
REG_v,
REG_w,
REG_x,
REG_y,
REG_z,
REG_DEFAULT,
REG_LAST,
};
enum Mark {
MARK_a,
MARK_b,
MARK_c,
MARK_d,
MARK_e,
MARK_f,
MARK_g,
MARK_h,
MARK_i,
MARK_j,
MARK_k,
MARK_l,
MARK_m,
MARK_n,
MARK_o,
MARK_p,
MARK_q,
MARK_r,
MARK_s,
MARK_t,
MARK_u,
MARK_v,
MARK_w,
MARK_x,
MARK_y,
MARK_z,
};
struct Editor {
int width, height; /* terminal size, available for all windows */
EditorWin *windows; /* list of windows */
EditorWin *win; /* currently active window */
Syntax *syntaxes; /* NULL terminated array of syntax definitions */
Register registers[REG_LAST]; /* register used for copy and paste */
Prompt *prompt; /* used to get user input */
Regex *search_pattern; /* last used search pattern */
void (*windows_arrange)(Editor*); /* current layout which places the windows */
editor_statusbar_t statusbar; /* configurable user hook to draw statusbar */
bool running; /* (TODO move elsewhere?) */
};
typedef struct {
short fg, bg; /* fore and background color */
int attr; /* curses attributes */
} Color;
typedef struct {
char *rule; /* regex to search for */
int cflags; /* compilation flags (REG_*) used when compiling */
Color color; /* settings to apply in case of a match */
regex_t regex; /* compiled form of the above rule */
} SyntaxRule;
#define SYNTAX_REGEX_RULES 10
typedef struct Syntax Syntax;
struct Syntax { /* a syntax definition */
char *name; /* syntax name */
char *file; /* apply to files matching this regex */
regex_t file_regex; /* compiled file name regex */
SyntaxRule rules[SYNTAX_REGEX_RULES]; /* all rules for this file type */
};
Editor *editor_new(int width, int height);
void editor_free(Editor*);
void editor_resize(Editor*, int width, int height);
void editor_draw(Editor*);
void editor_update(Editor*);
void editor_insert_key(Editor*, const char *c, size_t len);
void editor_replace_key(Editor*, const char *c, size_t len);
void editor_backspace_key(Editor*);
void editor_delete_key(Editor*);
void editor_insert(Editor*, size_t pos, const char *data, size_t len);
void editor_delete(Editor*, size_t pos, size_t len);
// TODO comment
bool editor_syntax_load(Editor*, Syntax *syntaxes, Color *colors);
void editor_syntax_unload(Editor*);
bool editor_window_new(Editor*, const char *filename);
void editor_window_close(Editor *vis);
void editor_window_split(Editor*, const char *filename);
void editor_window_vsplit(Editor*, const char *filename);
void editor_window_next(Editor*);
void editor_window_prev(Editor*);
char *editor_prompt_get(Editor *vis);
void editor_prompt_set(Editor *vis, const char *line);
void editor_prompt_show(Editor *vis, const char *title);
void editor_prompt_hide(Editor *vis);
void editor_statusbar_set(Editor*, editor_statusbar_t);
/* library initialization code, should be run at startup */
void editor_init(void);
short editor_color_reserve(short fg, short bg);
short editor_color_get(short fg, short bg);
#endif
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