1 files changed, 127 insertions, 0 deletions
diff --git a/info/infokey.h b/info/infokey.h
new file mode 100644
index 0000000..783d921
--- /dev/null
+++ b/info/infokey.h
@@ -0,0 +1,127 @@
+/* infokey.h -- Custom keystroke definition support.
+   $Id: infokey.h,v 1.5 2007/07/01 21:20:30 karl Exp $
+
+   Copyright (C) 1999, 2002, 2007 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   Written by Andrew Bettison <andrewb@zip.com.au>.
+
+   This design was derived from the "lesskey" system in less 3.4.0. by
+   Mark Nudelman.
+
+   The following terminology is confusing:
+	source file = $HOME/.infokey
+	infokey file = $HOME/.info
+   Oh, well.
+ */
+
+
+/* Default source file, where user writes text definitions to be
+   compiled to the infokey file.  MS-DOS doesn't allow leading
+   dots in file names.  */
+#ifdef __MSDOS__
+#define INFOKEY_SRCFILE		"_infokey"
+#else
+#define INFOKEY_SRCFILE		".infokey"
+#endif
+
+/* Default "infokey file", where compiled user defs are kept and
+   read by Info.  MS-DOS doesn't allow leading dots in file names.  */
+#ifdef __MSDOS__
+#define INFOKEY_FILE		"_info"
+#else
+#define INFOKEY_FILE		".info"
+#endif
+
+/*
+Format of entire infokey file:
+
+	4 bytes		magic number S
+	X bytes		version string
+	1 byte '\0'	terminator
+
+	any number of sections:
+		1 byte		section id
+		2 bytes		section length (N)
+		N bytes		section definitions: format depends on section
+
+	4 bytes		magic number E
+
+Format of INFO and EA sections:
+	
+	1 byte		flag: 1 == suppress default key bindings
+	Repeat:
+		X bytes		key sequence
+		1 byte '\0'	terminator
+		1 byte		action code (A_xxx)
+
+Format of VAR section:
+	
+	Repeat:
+		X bytes		variable name
+		1 byte '\0'	terminator
+		Y bytes		value
+		1 byte '\0'	terminator
+
+*/
+
+#define	INFOKEY_NMAGIC		8
+
+#define	INFOKEY_MAGIC_S0	'\001'
+#define	INFOKEY_MAGIC_S1	'I'
+#define	INFOKEY_MAGIC_S2	'n'
+#define	INFOKEY_MAGIC_S3	'f'
+
+#define	INFOKEY_SECTION_INFO	'i'
+#define	INFOKEY_SECTION_EA	'e'
+#define	INFOKEY_SECTION_VAR	'v'
+
+#define	INFOKEY_MAGIC_E0	'A'
+#define	INFOKEY_MAGIC_E1	'l'
+#define	INFOKEY_MAGIC_E2	'f'
+#define	INFOKEY_MAGIC_E3	'n'
+
+#define	INFOKEY_RADIX		64
+#define	INFOKEY_MAX_SECTIONLEN	500
+#define	INFOKEY_MAX_DEFLEN	16
+
+#define	A_MAX_COMMAND		120
+#define	A_INVALID		121
+
+/* Character transformations (independent of info's own) */
+
+#define	CONTROL(c)		((c) & 0x1f)
+#define	ISCONTROL(c)		(((c) & ~0x1f) == 0)
+#define	META(c)			((c) | 0x80)
+#define	UNMETA(c)		((c) & ~0x80)
+#define	ISMETA(c)		(((c) & 0x80) != 0)
+
+/* Special keys (keys which output different strings on different terminals) */
+
+#define SK_ESCAPE		CONTROL('k')
+#define SK_RIGHT_ARROW		1
+#define SK_LEFT_ARROW		2
+#define SK_UP_ARROW		3
+#define SK_DOWN_ARROW		4
+#define SK_PAGE_UP		5
+#define SK_PAGE_DOWN		6
+#define SK_HOME			7
+#define SK_END			8
+#define SK_DELETE		9
+#define SK_INSERT		10
+#define SK_CTL_LEFT_ARROW	11
+#define SK_CTL_RIGHT_ARROW	12
+#define SK_CTL_DELETE		13
+#define SK_LITERAL		40