xkblayout

commit 95f9584e724060cccb9fe3ee5846c766833fbd46
Author: lostd <lostd@2f30.org>
Date:   Sat, 17 Oct 2015 22:15:25 +0300

First version

Diffstat:
A
LICENSE
 | 
23
+++++++++++++++++++++++
A
Makefile
 | 
19
+++++++++++++++++++
A
README
 | 
4
++++
A
xkblayout.c
 | 
65
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

4 files changed, 111 insertions(+), 0 deletions(-)
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,23 @@
+Copyright (c) 2015 Lazaros Koromilas <lostd@2f30.org>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,19 @@
+PREFIX = /usr/local
+CFLAGS = -I/usr/X11R6/include
+LDFLAGS = -L/usr/X11R6/lib
+LDLIBS = -lX11 -lxkbfile
+BIN = xkblayout
+
+all: $(BIN)
+
+clean:
+	rm -f $(BIN)
+
+install: all
+	mkdir -p $(DESTDIR)$(PREFIX)/bin
+	cp -f $(BIN) $(DESTDIR)$(PREFIX)/bin
+
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/$(BIN)
+
+.PHONY: all clean install uninstall
diff --git a/README b/README
@@ -0,0 +1,4 @@
+Small program that prints the current XKB layout.  It is useful
+for constructing the status string for dwm.  For example:
+
+    xsetroot -name "$(xkblayout) -- $(date)"
diff --git a/xkblayout.c b/xkblayout.c
@@ -0,0 +1,65 @@
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <X11/XKBlib.h>
+#include <X11/extensions/XKBrules.h>
+
+#ifdef DEBUG
+#define DPRINTF_U(t) printf(#t"=%u\n", t)
+#define DPRINTF_S(t) printf(#t"=%s\n", t)
+#else
+#define DPRINTF_U(t)
+#define DPRINTF_S(t)
+#endif
+
+int
+main(void)
+{
+	Display *dpy;
+	XkbDescPtr desc;
+	XkbStateRec state;
+	XkbRF_VarDefsRec vd;
+	char *group, *symbols;
+	char *tmp, *str, *orig, *tok;
+	unsigned int i;
+
+	dpy = XOpenDisplay(NULL);
+	if (dpy == NULL)
+		errx(1, "Cannot open display");
+
+	/* Get layout group index in [0..3] */
+	XkbGetState(dpy, XkbUseCoreKbd, &state);
+	DPRINTF_U(state.group);
+
+	/* Get layout names */
+	desc = XkbGetKeyboard(dpy, XkbAllComponentsMask, XkbUseCoreKbd);
+	group = XGetAtomName(dpy, desc->names->groups[state.group]);
+	DPRINTF_S(group);
+	symbols = XGetAtomName(dpy, desc->names->symbols);
+	DPRINTF_S(symbols);
+
+	/* Get clean layouts string */
+	XkbRF_GetNamesProp(dpy, &tmp, &vd);
+	DPRINTF_S(tmp);
+	DPRINTF_S(vd.layout);
+
+	str = strdup(vd.layout);
+	orig = str;
+
+	/* Tokenize until we reach the current layout */
+	for (i = 0; i <= state.group; i++) {
+		tok = strsep(&str, ",");
+		if (tok == NULL)
+			return 1;
+		DPRINTF_S(tok);
+	}
+
+	/* Print layout name */
+	printf("%s\n", tok);
+
+	free(orig);
+
+	return 0;
+}