Move key-matching functions into x.c

Modifiers and keysyms are specific to X, and the functions match and
kmap are only used in x.c.  Needed to global-ize the key arrays and
lengths from config.h (for now).

Signed-off-by: Devin J. Pohly <djpohly@gmail.com>

config.def.h

@@ -209,13 +209,13 @@ Shortcut shortcuts[] = {
  * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF)
  * to be mapped below, add them to this array.
  */
-static KeySym mappedkeys[] = { -1 };
+KeySym mappedkeys[] = { -1 };
 
 /*
  * State bits to ignore when matching key or button events.  By default,
  * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored.
  */
-static uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
+uint ignoremod = Mod2Mask|XK_SWITCH_MOD;
 
 /*
  * Override mouse-select while mask is active (when MODE_MOUSE is set).
@@ -228,7 +228,7 @@ uint forceselmod = ShiftMask;
  * This is the huge key array which defines all compatibility to the Linux
  * world. Please decide about changes wisely.
  */
-static Key key[] = {
+Key key[] = {
 	/* keysym           mask            string      appkey appcursor crlf */
 	{ XK_KP_Home,       ShiftMask,      "\033[2J",       0,   -1,    0},
 	{ XK_KP_Home,       ShiftMask,      "\033[1;2H",     0,   +1,    0},

st.c

@@ -110,16 +110,6 @@ typedef struct {
 	int narg;              /* nb of args */
 } STREscape;
 
-typedef struct {
-	KeySym k;
-	uint mask;
-	char *s;
-	/* three valued logic variables: 0 indifferent, 1 on, -1 off */
-	signed char appkey;    /* application keypad */
-	signed char appcursor; /* application cursor */
-	signed char crlf;      /* crlf mode          */
-} Key;
-
 /* function definitions used in config.h */
 static void clipcopy(const Arg *);
 static void clippaste(const Arg *);
@@ -223,6 +213,8 @@ size_t colornamelen = LEN(colorname);
 size_t mshortcutslen = LEN(mshortcuts);
 size_t shortcutslen = LEN(shortcuts);
 size_t selmaskslen = LEN(selmasks);
+size_t keyslen = LEN(key);
+size_t mappedkeyslen = LEN(mappedkeys);
 
 ssize_t
 xwrite(int fd, const char *s, size_t len)
@@ -2550,54 +2542,8 @@ redraw(void)
 	draw();
 }
 
-int
-match(uint mask, uint state)
-{
-	return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
-}
-
 void
 numlock(const Arg *dummy)
 {
 	term.numlock ^= 1;
 }
-
-char*
-kmap(KeySym k, uint state)
-{
-	Key *kp;
-	int i;
-
-	/* Check for mapped keys out of X11 function keys. */
-	for (i = 0; i < LEN(mappedkeys); i++) {
-		if (mappedkeys[i] == k)
-			break;
-	}
-	if (i == LEN(mappedkeys)) {
-		if ((k & 0xFFFF) < 0xFD00)
-			return NULL;
-	}
-
-	for (kp = key; kp < key + LEN(key); kp++) {
-		if (kp->k != k)
-			continue;
-
-		if (!match(kp->mask, state))
-			continue;
-
-		if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
-			continue;
-		if (term.numlock && kp->appkey == 2)
-			continue;
-
-		if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
-			continue;
-
-		if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
-			continue;
-
-		return kp->s;
-	}
-
-	return NULL;
-}

st.h

@@ -176,6 +176,16 @@ typedef struct {
 	const Arg arg;
 } Shortcut;
 
+typedef struct {
+	KeySym k;
+	uint mask;
+	char *s;
+	/* three valued logic variables: 0 indifferent, 1 on, -1 off */
+	signed char appkey;    /* application keypad */
+	signed char appcursor; /* application cursor */
+	signed char crlf;      /* crlf mode          */
+} Key;
+
 void die(const char *, ...);
 void redraw(void);
 
@@ -184,7 +194,6 @@ void tnew(int, int);
 void tresize(int, int);
 void tsetdirt(int, int);
 void tsetdirtattr(int);
-int match(uint, uint);
 void ttynew(void);
 size_t ttyread(void);
 void ttyresize(int, int);
@@ -193,9 +202,7 @@ void ttywrite(const char *, size_t);
 
 void resettitle(void);
 
-char *kmap(KeySym, uint);
 void selclear(void);
-
 void selinit(void);
 void selnormalize(void);
 int selected(int, int);
@@ -255,7 +262,12 @@ extern MouseShortcut mshortcuts[];
 extern size_t mshortcutslen;
 extern Shortcut shortcuts[];
 extern size_t shortcutslen;
+extern KeySym mappedkeys[];
+extern size_t mappedkeyslen;
+extern uint ignoremod;
 extern uint forceselmod;
+extern Key key[];
+extern size_t keyslen;
 extern uint selmasks[];
 extern size_t selmaskslen;
 extern char ascii_printable[];

x.c

@@ -116,6 +116,8 @@ static void selrequest(XEvent *);
 static void selcopy(Time);
 static void getbuttoninfo(XEvent *);
 static void mousereport(XEvent *);
+static char *kmap(KeySym, uint);
+static int match(uint, uint);
 
 static void run(void);
 static void usage(void);
@@ -1603,6 +1605,52 @@ focus(XEvent *ev)
 	}
 }
 
+int
+match(uint mask, uint state)
+{
+	return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
+}
+
+char*
+kmap(KeySym k, uint state)
+{
+	Key *kp;
+	int i;
+
+	/* Check for mapped keys out of X11 function keys. */
+	for (i = 0; i < mappedkeyslen; i++) {
+		if (mappedkeys[i] == k)
+			break;
+	}
+	if (i == mappedkeyslen) {
+		if ((k & 0xFFFF) < 0xFD00)
+			return NULL;
+	}
+
+	for (kp = key; kp < key + keyslen; kp++) {
+		if (kp->k != k)
+			continue;
+
+		if (!match(kp->mask, state))
+			continue;
+
+		if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
+			continue;
+		if (term.numlock && kp->appkey == 2)
+			continue;
+
+		if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
+			continue;
+
+		if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
+			continue;
+
+		return kp->s;
+	}
+
+	return NULL;
+}
+
 void
 kpress(XEvent *ev)
 {