text: /* See LICENSE for license details. */
  
  /* Arbitrary sizes */
  #define UTF_SIZ       4
  
  /* 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 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 IS_SET(flag)		((term.mode & (flag)) != 0)
  #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 term_mode {
  	MODE_WRAP        = 1 << 0,
  	MODE_INSERT      = 1 << 1,
  	MODE_APPKEYPAD   = 1 << 2,
  	MODE_ALTSCREEN   = 1 << 3,
  	MODE_CRLF        = 1 << 4,
  	MODE_MOUSEBTN    = 1 << 5,
  	MODE_MOUSEMOTION = 1 << 6,
  	MODE_REVERSE     = 1 << 7,
  	MODE_KBDLOCK     = 1 << 8,
  	MODE_HIDE        = 1 << 9,
  	MODE_ECHO        = 1 << 10,
  	MODE_APPCURSOR   = 1 << 11,
  	MODE_MOUSESGR    = 1 << 12,
  	MODE_8BIT        = 1 << 13,
  	MODE_BLINK       = 1 << 14,
  	MODE_FBLINK      = 1 << 15,
  	MODE_FOCUS       = 1 << 16,
  	MODE_MOUSEX10    = 1 << 17,
  	MODE_MOUSEMANY   = 1 << 18,
  	MODE_BRCKTPASTE  = 1 << 19,
  	MODE_PRINT       = 1 << 20,
  	MODE_UTF8        = 1 << 21,
  	MODE_SIXEL       = 1 << 22,
  	MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
  	                  |MODE_MOUSEMANY,
  };
  
  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
  };
  
  enum window_state {
  	WIN_VISIBLE = 1,
  	WIN_FOCUSED = 2
  };
  
  typedef unsigned char uchar;
  typedef unsigned int uint;
  typedef unsigned long ulong;
  typedef unsigned short ushort;
  
  typedef uint_least32_t Rune;
  
  typedef struct {
  	Rune u;           /* character code */
  	ushort mode;      /* attribute flags */
  	uint32_t fg;      /* foreground  */
  	uint32_t bg;      /* background  */
  } Glyph;
  
  typedef Glyph *Line;
  
  typedef struct {
  	Glyph attr; /* current char attributes */
  	int x;
  	int y;
  	char state;
  } TCursor;
  
  /* Internal representation of the screen */
  typedef struct {
  	int row;      /* nb row */
  	int col;      /* nb col */
  	Line *line;   /* screen */
  	Line *alt;    /* alternate screen */
  	int *dirty;  /* dirtyness of lines */
  	GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
  	TCursor c;    /* cursor */
  	int top;      /* top    scroll limit */
  	int bot;      /* bottom scroll limit */
  	int mode;     /* terminal mode flags */
  	int esc;      /* escape state flags */
  	char trantbl[4]; /* charset table translation */
  	int charset;  /* current charset */
  	int icharset; /* selected charset for sequence */
  	int numlock; /* lock numbers in keyboard */
  	int *tabs;
  } Term;
  
  /* Purely graphic info */
  typedef struct {
  	int tw, th; /* tty width and height */
  	int w, h; /* window width and height */
  	int ch; /* char height */
  	int cw; /* char width  */
  	char state; /* focus, redraw, visible */
  	int cursor; /* cursor style */
  } TermWindow;
  
  typedef struct {
  	uint b;
  	uint mask;
  	char *s;
  } MouseShortcut;
  
  typedef struct {
  	int mode;
  	int type;
  	int snap;
  	/*
  	 * Selection variables:
  	 * nb – normalized coordinates of the beginning of the selection
  	 * ne – normalized coordinates of the end of the selection
  	 * ob – original coordinates of the beginning of the selection
  	 * oe – original coordinates of the end of the selection
  	 */
  	struct {
  		int x, y;
  	} nb, ne, ob, oe;
  
  	char *primary, *clipboard;
  	int alt;
  	struct timespec tclick1;
  	struct timespec tclick2;
  
  	//Atom xtarget;
  } Selection;
  
  typedef union {
  	int i;
  	uint ui;
  	float f;
  	const void *v;
  } Arg;
  
  typedef struct {
  	uint mod;
  	KeySym keysym;
  	void (*func)(const Arg *);
  	const Arg arg;
  } Shortcut;
  
  void die(const char *, ...);
  void redraw(void);
  
  int tattrset(int);
  void tnew(int, int);
  void tsetdirt(int, int);
  void tsetdirtattr(int);
  int match(uint, uint);
  void ttynew(void);
  size_t ttyread(void);
  void ttyresize(void);
  void ttysend(char *, size_t);
  void ttywrite(const char *, size_t);
  
  void resettitle(void);
  
  char *kmap(KeySym, uint);
  void cresize(int, int);
  void selclear(void);
  
  void selinit(void);
  void selnormalize(void);
  int selected(int, int);
  char *getsel(void);
  int x2col(int);
  int y2row(int);
  
  size_t utf8decode(char *, Rune *, size_t);
  size_t utf8encode(Rune, char *);
  
  void *xmalloc(size_t);
  char *xstrdup(char *);
  
  void usage(void);
  
  /* Globals */
  extern TermWindow win;
  extern Term term;
  extern Selection sel;
  extern int cmdfd;
  extern pid_t pid;
  extern char **opt_cmd;
  extern char *opt_class;
  extern char *opt_embed;
  extern char *opt_font;
  extern char *opt_io;
  extern char *opt_line;
  extern char *opt_name;
  extern char *opt_title;
  extern int oldbutton;
  
  extern char *usedfont;
  extern double usedfontsize;
  extern double defaultfontsize;
  
  /* config.h globals */
  extern char font[];
  extern int borderpx;
  extern float cwscale;
  extern float chscale;
  extern unsigned int doubleclicktimeout;
  extern unsigned int tripleclicktimeout;
  extern int allowaltscreen;
  extern unsigned int xfps;
  extern unsigned int actionfps;
  extern unsigned int cursorthickness;
  extern unsigned int blinktimeout;
  extern char termname[];
  extern const char *colorname[];
  extern size_t colornamelen;
  extern unsigned int defaultfg;
  extern unsigned int defaultbg;
  extern unsigned int defaultcs;
  extern unsigned int defaultrcs;
  extern unsigned int cursorshape;
  extern unsigned int cols;
  extern unsigned int rows;
  extern unsigned int mouseshape;
  extern unsigned int mousefg;
  extern unsigned int mousebg;
  extern unsigned int defaultattr;
  extern MouseShortcut mshortcuts[];
  extern size_t mshortcutslen;
  extern Shortcut shortcuts[];
  extern size_t shortcutslen;
  extern uint forceselmod;
  extern uint selmasks[];
  extern size_t selmaskslen;
  extern char ascii_printable[];
  