Split X-specific code into x.c

Makefile

@@ -3,7 +3,7 @@
 
 include config.mk
 
-SRC = st.c
+SRC = st.c x.c
 OBJ = ${SRC:.c=.o}
 
 all: options st
@@ -21,6 +21,9 @@ config.h:
 	@echo CC $<
 	@${CC} -c ${CFLAGS} $<
 
+st.o: config.h st.h win.h
+x.o: arg.h st.h win.h
+
 ${OBJ}: config.h config.mk
 
 st: ${OBJ}

config.def.h

@@ -5,8 +5,8 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
-static int borderpx = 2;
+int borderpx = 2;
 
 /*
  * What program is execed by st depends of these precedence rules:
@@ -24,8 +24,8 @@ static char stty_args[] = "stty raw pass8 nl -echo -iexten -cstopb 38400";
 static char vtiden[] = "\033[?6c";
 
 /* Kerning / character bounding-box multipliers */
-static float cwscale = 1.0;
+float cwscale = 1.0;
-static float chscale = 1.0;
+float chscale = 1.0;
 
 /*
  * word delimiter string
@@ -35,26 +35,26 @@ static float chscale = 1.0;
 static char worddelimiters[] = " ";
 
 /* selection timeouts (in milliseconds) */
-static unsigned int doubleclicktimeout = 300;
+unsigned int doubleclicktimeout = 300;
-static unsigned int tripleclicktimeout = 600;
+unsigned int tripleclicktimeout = 600;
 
 /* alt screens */
-static int allowaltscreen = 1;
+int allowaltscreen = 1;
 
 /* frames per second st should at maximum draw to the screen */
-static unsigned int xfps = 120;
+unsigned int xfps = 120;
-static unsigned int actionfps = 30;
+unsigned int actionfps = 30;
 
 /*
  * blinking timeout (set to 0 to disable blinking) for the terminal blinking
  * attribute.
  */
-static unsigned int blinktimeout = 800;
+unsigned int blinktimeout = 800;
 
 /*
  * thickness of underline and bar cursors
  */
-static unsigned int cursorthickness = 2;
+unsigned int cursorthickness = 2;
 
 /*
  * bell volume. It must be a value between -100 and 100. Use 0 for disabling
@@ -63,7 +63,7 @@ static unsigned int cursorthickness = 2;
 static int bellvolume = 0;
 
 /* default TERM value */
-static char termname[] = "st-256color";
+char termname[] = "st-256color";
 
 /*
  * spaces per tab
@@ -83,7 +83,7 @@ static char termname[] = "st-256color";
 static unsigned int tabspaces = 8;
 
 /* Terminal colors (16 first used in escape sequence) */
-static const char *colorname[] = {
+const char *colorname[] = {
 	/* 8 normal colors */
 	"black",
 	"red3",
@@ -116,10 +116,10 @@ static const char *colorname[] = {
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-static unsigned int defaultfg = 7;
+unsigned int defaultfg = 7;
-static unsigned int defaultbg = 0;
+unsigned int defaultbg = 0;
-static unsigned int defaultcs = 256;
+unsigned int defaultcs = 256;
-static unsigned int defaultrcs = 257;
+unsigned int defaultrcs = 257;
 
 /*
  * Default shape of cursor
@@ -128,33 +128,33 @@ static unsigned int defaultrcs = 257;
  * 6: Bar ("|")
  * 7: Snowman ("☃")
  */
-static unsigned int cursorshape = 2;
+unsigned int cursorshape = 2;
 
 /*
  * Default columns and rows numbers
  */
 
-static unsigned int cols = 80;
+unsigned int cols = 80;
-static unsigned int rows = 24;
+unsigned int rows = 24;
 
 /*
  * Default colour and shape of the mouse cursor
  */
-static unsigned int mouseshape = XC_xterm;
+unsigned int mouseshape = XC_xterm;
-static unsigned int mousefg = 7;
+unsigned int mousefg = 7;
-static unsigned int mousebg = 0;
+unsigned int mousebg = 0;
 
 /*
  * Color used to display font attributes when fontconfig selected a font which
  * doesn't match the ones requested.
  */
-static unsigned int defaultattr = 11;
+unsigned int defaultattr = 11;
 
 /*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.
  */
-static MouseShortcut mshortcuts[] = {
+MouseShortcut mshortcuts[] = {
 	/* button               mask            string */
 	{ Button4,              XK_ANY_MOD,     "\031" },
 	{ Button5,              XK_ANY_MOD,     "\005" },
@@ -163,15 +163,15 @@ static MouseShortcut mshortcuts[] = {
 /* Internal keyboard shortcuts. */
 #define MODKEY Mod1Mask
 
-static Shortcut shortcuts[] = {
+Shortcut shortcuts[] = {
 	/* mask                 keysym          function        argument */
 	{ XK_ANY_MOD,           XK_Break,       sendbreak,      {.i =  0} },
 	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
 	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
 	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
-	{ MODKEY|ShiftMask,     XK_Prior,       xzoom,          {.f = +1} },
+	{ MODKEY|ShiftMask,     XK_Prior,       zoom,           {.f = +1} },
-	{ MODKEY|ShiftMask,     XK_Next,        xzoom,          {.f = -1} },
+	{ MODKEY|ShiftMask,     XK_Next,        zoom,           {.f = -1} },
-	{ MODKEY|ShiftMask,     XK_Home,        xzoomreset,     {.f =  0} },
+	{ MODKEY|ShiftMask,     XK_Home,        zoomreset,      {.f =  0} },
 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
 	{ MODKEY|ShiftMask,     XK_Insert,      clippaste,      {.i =  0} },
 	{ MODKEY|ShiftMask,     XK_C,           clipcopy,       {.i =  0} },
@@ -222,7 +222,7 @@ static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
  * Note that if you want to use ShiftMask with selmasks, set this to an other
  * modifier, set to 0 to not use it.
  */
-static uint forceselmod = ShiftMask;
+uint forceselmod = ShiftMask;
 
 /*
  * This is the huge key array which defines all compatibility to the Linux
@@ -451,7 +451,7 @@ static Key key[] = {
  * ButtonRelease and MotionNotify.
  * If no match is found, regular selection is used.
  */
-static uint selmasks[] = {
+uint selmasks[] = {
 	[SEL_RECTANGULAR] = Mod1Mask,
 };
 
@@ -459,7 +459,7 @@ static uint selmasks[] = {
  * Printable characters in ASCII, used to estimate the advance width
  * of single wide characters.
  */
-static char ascii_printable[] =
+char ascii_printable[] =
 	" !\"#$%&'()*+,-./0123456789:;<=>?"
 	"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
 	"`abcdefghijklmnopqrstuvwxyz{|}~";

st.h

@@ -0,0 +1,272 @@
+/* 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[];

win.h

@@ -0,0 +1,29 @@
+/* See LICENSE for license details. */
+
+/* X modifiers */
+#define XK_ANY_MOD    UINT_MAX
+#define XK_NO_MOD     0
+#define XK_SWITCH_MOD (1<<13)
+
+typedef XftGlyphFontSpec GlyphFontSpec;
+
+void draw(void);
+void drawregion(int, int, int, int);
+void run(void);
+
+void xbell(int);
+void xclipcopy(void);
+void xclippaste(void);
+void xhints(void);
+void xinit(void);
+void xloadcols(void);
+int xsetcolorname(int, const char *);
+void xloadfonts(char *, double);
+void xsetenv(void);
+void xsettitle(char *);
+void xsetpointermotion(int);
+void xseturgency(int);
+void xunloadfonts(void);
+void xresize(int, int);
+void xselpaste(void);
+unsigned long xwinid(void);