st

/* See LICENSE for license details. */

#include <stdint.h>

#include <sys/types.h>

/* macros */

#define MIN(a, b)		((a) < (b) ? (a) : (b))

#define MAX(a, b)		((a) < (b) ? (b) : (a))

#define LEN(a)			(sizeof(a) / sizeof(a)[0])

#define BETWEEN(x, a, b)	((a) <= (x) && (x) <= (b))

#define DIVCEIL(n, d)		(((n) + ((d) - 1)) / (d))

#define DEFAULT(a, b)		(a) = (a) ? (a) : (b)

#define LIMIT(x, a, b)		(x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)

#define ATTRCMP(a, b)		((a).mode != (b).mode || (a).fg != (b).fg || \

				(a).bg != (b).bg)

#define TIMEDIFF(t1, t2)	((t1.tv_sec-t2.tv_sec)*1000 + \

				(t1.tv_nsec-t2.tv_nsec)/1E6)

#define MODBIT(x, set, bit)	((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))

#define TRUECOLOR(r,g,b)	(1 << 24 | (r) << 16 | (g) << 8 | (b))

#define IS_TRUECOL(x)		(1 << 24 & (x))

enum glyph_attribute {

	ATTR_NULL       = 0,

	ATTR_BOLD       = 1 << 0,

	ATTR_FAINT      = 1 << 1,

	ATTR_ITALIC     = 1 << 2,

	ATTR_UNDERLINE  = 1 << 3,

	ATTR_BLINK      = 1 << 4,

	ATTR_REVERSE    = 1 << 5,

	ATTR_INVISIBLE  = 1 << 6,

	ATTR_STRUCK     = 1 << 7,

	ATTR_WRAP       = 1 << 8,

	ATTR_WIDE       = 1 << 9,

	ATTR_WDUMMY     = 1 << 10,

	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,

};

enum selection_mode {

	SEL_IDLE = 0,

	SEL_EMPTY = 1,

	SEL_READY = 2

};

enum selection_type {

	SEL_REGULAR = 1,

	SEL_RECTANGULAR = 2

};

enum selection_snap {

	SNAP_WORD = 1,

	SNAP_LINE = 2

};

typedef unsigned char uchar;

typedef unsigned int uint;

typedef unsigned long ulong;

typedef unsigned short ushort;

typedef uint_least32_t Rune;

#define Glyph Glyph_

typedef struct {

	Rune u;           /* character code */

	ushort mode;      /* attribute flags */

	uint32_t fg;      /* foreground  */

	uint32_t bg;      /* background  */

} Glyph;

typedef Glyph *Line;

typedef union {

	int i;

	uint ui;

	float f;

	const void *v;

	const char *s;

} Arg;

void die(const char *, ...);

void redraw(void);

void draw(void);

void kscrolldown(const Arg *);

void kscrollup(const Arg *);

void printscreen(const Arg *);

void printsel(const Arg *);

void sendbreak(const Arg *);

void toggleprinter(const Arg *);

int tattrset(int);

void tnew(int, int);

void tresize(int, int);

void tsetdirtattr(int);

void ttyhangup(void);

int ttynew(const char *, char *, const char *, char **);

size_t ttyread(void);

void ttyresize(int, int);

void ttywrite(const char *, size_t, int);

void resettitle(void);

void selclear(void);

void selinit(void);

void selstart(int, int, int);

void selextend(int, int, int, int);

int selected(int, int);

char *getsel(void);

size_t utf8encode(Rune, char *);

void *xmalloc(size_t);

void *xrealloc(void *, size_t);

char *xstrdup(const char *);

/* config.h globals */

extern char *utmp;

extern char *scroll;

extern char *stty_args;

extern char *vtiden;

extern wchar_t *worddelimiters;

extern int allowaltscreen;

extern int allowwindowops;

extern char *termname;

extern unsigned int tabspaces;

extern unsigned int defaultfg;

extern unsigned int defaultbg;

extern unsigned int defaultcs;