Add initial version of i3-input, an interactive tool for sending IPC commands

i3-input/convmap.pl

@@ -0,0 +1,178 @@
+#!/usr/bin/perl
+# Generate keysym2ucs.c file
+#
+# $XFree86: xc/programs/xterm/unicode/convmap.pl,v 1.5 2000/01/24 22:22:05 dawes Exp $
+
+sub utf8 ($) {
+    my $c = shift(@_);
+
+    if ($c < 0x80) {
+        return sprintf("%c", $c);
+    } elsif ($c < 0x800) {
+        return sprintf("%c%c", 0xc0 | ($c >> 6), 0x80 | ($c & 0x3f));
+    } elsif ($c < 0x10000) {
+        return sprintf("%c%c%c",
+                       0xe0 |  ($c >> 12),
+                       0x80 | (($c >>  6) & 0x3f),
+                       0x80 | ( $c        & 0x3f));
+    } elsif ($c < 0x200000) {
+        return sprintf("%c%c%c%c",
+                       0xf0 |  ($c >> 18),
+                       0x80 | (($c >> 12) & 0x3f),
+                       0x80 | (($c >>  6) & 0x3f),
+                       0x80 | ( $c        & 0x3f));
+    } elsif ($c < 0x4000000) {
+        return sprintf("%c%c%c%c%c",
+                       0xf8 |  ($c >> 24),
+                       0x80 | (($c >> 18) & 0x3f),
+                       0x80 | (($c >> 12) & 0x3f),
+                       0x80 | (($c >>  6) & 0x3f),
+                       0x80 | ( $c        & 0x3f));
+
+    } elsif ($c < 0x80000000) {
+        return sprintf("%c%c%c%c%c%c",
+                       0xfe |  ($c >> 30),
+                       0x80 | (($c >> 24) & 0x3f),
+                       0x80 | (($c >> 18) & 0x3f),
+                       0x80 | (($c >> 12) & 0x3f),
+                       0x80 | (($c >> 6)  & 0x3f),
+                       0x80 | ( $c        & 0x3f));
+    } else {
+        return utf8(0xfffd);
+    }
+}
+
+$unicodedata = "UnicodeData.txt";
+
+# read list of all Unicode names
+if (!open(UDATA, $unicodedata) && !open(UDATA, "$unicodedata")) {
+    die ("Can't open Unicode database '$unicodedata':\n$!\n\n" .
+         "Please make sure that you have downloaded the file\n" .
+         "ftp://ftp.unicode.org/Public/UNIDATA/UnicodeData-Latest.txt\n");
+}
+while (<UDATA>) {
+    if (/^([0-9,A-F]{4});([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*)$/) {
+        $name{hex($1)} = $2;
+    } else {
+	    next;
+        die("Syntax error in line '$_' in file '$unicodedata'");
+    }
+}
+close(UDATA);
+
+# read mapping (from http://wsinwp07.win.tue.nl:1234/unicode/keysym.map)
+open(LIST, "<keysym.map") || die ("Can't open map file:\n$!\n");
+while (<LIST>) {
+    if (/^0x([0-9a-f]{4})\s+U([0-9a-f]{4})\s*(\#.*)?$/){
+        $keysym = hex($1);
+        $ucs = hex($2);
+        $keysym_to_ucs{$keysym} = $ucs;
+    } elsif (/^\s*\#/ || /^\s*$/) {
+    } else {
+        die("Syntax error in 'list' in line\n$_\n");
+    }
+}
+close(LIST);
+
+# read entries in keysymdef.h
+open(LIST, "</usr/include/X11/keysymdef.h") || die ("Can't open keysymdef.h:\n$!\n");
+while (<LIST>) {
+    if (/^\#define\s+XK_([A-Za-z_0-9]+)\s+0x([0-9a-fA-F]+)\s*(\/.*)?$/) {
+	next if /\/\* deprecated \*\//;
+	$keysymname = $1;
+	$keysym = hex($2);
+	$keysym_to_keysymname{$keysym} = $keysymname;
+    }
+}
+close(LIST);
+
+print <<EOT;
+/* \$XFree86\$
+ * This module converts keysym values into the corresponding ISO 10646-1
+ * (UCS, Unicode) values.
+ *
+ * The array keysymtab[] contains pairs of X11 keysym values for graphical
+ * characters and the corresponding Unicode value. The function
+ * keysym2ucs() maps a keysym onto a Unicode value using a binary search,
+ * therefore keysymtab[] must remain SORTED by keysym value.
+ *
+ * The keysym -> UTF-8 conversion will hopefully one day be provided
+ * by Xlib via XmbLookupString() and should ideally not have to be
+ * done in X applications. But we are not there yet.
+ *
+ * We allow to represent any UCS character in the range U+00000000 to
+ * U+00FFFFFF by a keysym value in the range 0x01000000 to 0x01ffffff.
+ * This admittedly does not cover the entire 31-bit space of UCS, but
+ * it does cover all of the characters up to U+10FFFF, which can be
+ * represented by UTF-16, and more, and it is very unlikely that higher
+ * UCS codes will ever be assigned by ISO. So to get Unicode character
+ * U+ABCD you can directly use keysym 0x1000abcd.
+ *
+ * NOTE: The comments in the table below contain the actual character
+ * encoded in UTF-8, so for viewing and editing best use an editor in
+ * UTF-8 mode.
+ *
+ * Author: Markus G. Kuhn <mkuhn\@acm.org>, University of Cambridge, June 1999
+ *
+ * Special thanks to Richard Verhoeven <river\@win.tue.nl> for preparing
+ * an initial draft of the mapping table.
+ *
+ * This software is in the public domain. Share and enjoy!
+ */
+
+#include <keysym2ucs.h>
+
+struct codepair {
+  unsigned short keysym;
+  unsigned short ucs;
+} keysymtab[] = {
+EOT
+
+for $keysym (sort {$a <=> $b} keys(%keysym_to_keysymname)) {
+    $ucs = $keysym_to_ucs{$keysym};
+    next if $keysym >= 0xf000 || $keysym < 0x100;
+    if ($ucs) {
+	printf("  { 0x%04x, 0x%04x }, /*%28s %s %s */\n",
+	       $keysym, $ucs, $keysym_to_keysymname{$keysym}, utf8($ucs),
+	       defined($name{$ucs}) ? $name{$ucs} : "???" );
+    } else {
+	printf("/*  0x%04x   %39s ? ??? */\n",
+	       $keysym, $keysym_to_keysymname{$keysym});
+    }
+}
+
+print <<EOT;
+};
+
+long keysym2ucs(KeySym keysym)
+{
+    int min = 0;
+    int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
+    int mid;
+
+    /* first check for Latin-1 characters (1:1 mapping) */
+    if ((keysym >= 0x0020 && keysym <= 0x007e) ||
+        (keysym >= 0x00a0 && keysym <= 0x00ff))
+        return keysym;
+
+    /* also check for directly encoded 24-bit UCS characters */
+    if ((keysym & 0xff000000) == 0x01000000)
+	return keysym & 0x00ffffff;
+
+    /* binary search in table */
+    while (max >= min) {
+	mid = (min + max) / 2;
+	if (keysymtab[mid].keysym < keysym)
+	    min = mid + 1;
+	else if (keysymtab[mid].keysym > keysym)
+	    max = mid - 1;
+	else {
+	    /* found it */
+	    return keysymtab[mid].ucs;
+	}
+    }
+
+    /* no matching Unicode value found */
+    return -1;
+}
+EOT