HIERARCHICAL NOTEBOOK
	
	hierarchical notebook (hnb) is program to organise, many kinds of data
	in one place, for example addresses, to-do lists, ideas, book "reviews",
	brainstorming, organising a speech, making a  structured packing list 
	random notes, and probably many more I  haven't thought of yet..
	

HOW TO GET hnb?
	new releases and information about hnb will appear at hnb's home page
	
	http://sourceforge.net/projects/hnb/
	
INSTALLING hnb
	if you've got a source release you must first compile hnb,..
	see further down in this file for instructions.
	
	Windows
		the windows binary distribution, is a .zip file	containing the
		executable, this README file, an sample database, and the 
		license for hnb's use. the binary is stand alone, so you can 
		just copy it wherever you'd like it to reside.
	Linux 
		the Linux binary distribution is a .tar.gz file	containing the
		executable, this README file, a an sample database, and the
		license for hnb's use. The binary is dynamically linked 
		against ncurses just place it anywhere in your path.. like
		/usr/bin, /usr/local/bin or /home/user/bin
		
COMPILING hnb
	
	hnb uses a custom Makefile, that should work on most unix'ish systems with a curses library.
	
	make
	su
	(enter root password)
	make install
	
	
USAGE DOCUMENTATION
	If you start hnb without any parameters and no default database, or
	with the -t or --tutorial option, hnb will load a special tutorial
	database.
	
CHANGELOG
	1.9.18
		fixed segfault reported by thomas sattler, due to faulty handling of NULL input in node_get
		fixed segfault occuring when selecting the first menu item directly
		added autosave, and warning for concurrent sessions
	1.9.17
		bug fix, when saving hnb DTD, I also saved the text attribute
		removed the format names from prefs.c,.. now the string specified is used instead, (makes extending easier)
		improved the tokenizer for libcli, it now acts almost exactly as bash, even the hooks for understanding $variable_expansion is included in the code, uses a single malloc
		various bug fixes
		cleanups and merging of commands, e.g. go_root, go_recurse, and go_backrecurse are now go <root|backrecurse|recurse|up|down|left|right>
		search now is a single command taking direction and query as arguments.
		changed escape to be the key used to bring up the menu,.. and remapped ^Q to be quit (again)
	1.9.16
		attempts to fix the compile on OSX
			renaming mergesort to node_mergesort due to nameclash
			only compiling the static lib
		made indent and outdent only work when there is no data typed already, (thus making > and < allowed typed in navigation mode as long as they're not the first character typed.
		removed errors appearing with -pedantic (at least here)
			removing all macros with variable arguments replacing them with va_list
			removing inline statements from libcli
		created an utility function for string replacements, that I inserted into all the various import/export filters.
		added a function "insert_cal <month> <year>" which inserts the specified month/year in a fashion that makes hnb useable as a simple timeplanner as well. (when I get around to adding support for clones, this might be interesting)
		allowing the user to use <,>,+ and - when typing in new data without erratic behavior, and not the need to enter edit mode. (except if it is the first char of the data)
		fixed an issue with creating the first child, and pressing insert, and various other commands,.. 
		added rpm spec file from Asgeir Nilsen
		made file_opml and file_hnb interpret all attributes
		implemented buffered reading for the xml tokenizer
		changed the function prototype for functions that register with libcli, they must now register with an int (int argc, char **argv, void *data) function
			overhauled hnb to use this API, some more refinement might be needed in someplaces, but it seems to work OK for now.
		added a menu that is accesed from F9
	1.9.15
		outdent fixed to be more efficient and work as intended
		added export context
		changed all import/export functions to use the query variable if filename passed is *
	1.9.14
		bugfix: The new sort and shuffle functions could result in dataloss when saved.
		new feature: expand/collapse and expand_all/collapse_all are new bindable functions, expand/collapse is bound to +/- in the default config file, they force portions of the tree to stay open even when you leave it.
	1.9.13
		Apparently I broke the nasty quick-sort I had implemented, when I changed the way the tree was stored. Implemented a Merge-sort which is faster anyways.
		Improved the behavior of non fixed navigation when the whole tree is displayed.
		Added a shuffle function (not currently bound), I used it while developing the new mergesort, but someone might find it useful.
	1.9.12
		Changed the datastructure to use a "assosciation list" for storing the actual data. Will move all tags, like checkbox to this structure.
			Should actually make it possible to do the addition of start end date and other "columns" a breeze, perhaps even automatic for some export/import formats
		modified tree_duplicate to use the new node_duplicate function, and a modified version of the import_node which takes a single node with data set as input.
		added import_node_text which disregards all other data items
	1.9.11
		changed node_swap to only swap relational pointers, thus making it easier to extend the data stored in Node later
			thus also changing and move node, indent/out-dent and sort to accommodate for a truer swap
		fixed a bug with editing of newly introduced child
			note: should perhaps move ui_action_edit into a built-in command that is handled specially since it now needs special attention by being a subcommand to ui_action_command
	1.9.4-1.9.10 feb 2003
		re-implementation of positioning of selection bar in non fixed mode
		massive code cleanup and separation
		separation of variables from prefs.* to static variables in the code modules where they belonged
		integration with spell checker (Ispell, but through prefs it could easily be made Aspell instead)
		new preferences format
		ability to execute commands and running mail-client / web-browser if a node or it's children contain url's / mail addresses
		OPML import and export
		postscript export
		htmlcss export
		save_state and restore_state for single level undo where needed
		new XML tokenizer
		cut/paste functionality
	1.9.3 jan 2003
		stabilising of the code
		ability to use default terminal colours, (patch from NN)
	1.9.1 oct 2002
		option to remember current position in hnb file when saving/loading
		cleaned up most of the help-system code
		further code separation
	1.9.0 oct 2002
		fixed the movement behaviour when going to the parent node,.. the screen jumped too much
		separated the various export and load filters into own files
		used my new libcli for the cli code, and as "glue" in some code spots
		reverted to a manual makefile instead of autoconf/automake
		improvements to dynamic key-bindings, multiple key-bindings for each action, all key-bindings in various context got their own choice in the preferences.
		The first of the actual key-bindings shown as help
		added some more bindings for the node editor, (skip word and bskip word, hooks for even more)
	1.8 30 aug 2001
		changed the default window scrolling behaviour to move the selection bar instead of the whole screen when possible
		integrated libxml support changes from orang@imonk.com
		added flag to keep whitespace when loading XML file
	1.7 6 jul 2001
		made the tutorial save-able, if opened in place of the default database
		fixed sorting segfault
		BSD curses workaround,.. does it work?
		changed percentage calculation algorithm
		cleanup of the node drawing code
		integrated priorities
		integrated Andrew J. Webers libxml2 import/export filters
		preferences items
			mouse
			bullet mode
			prefs revision checking
			priority colours
			bold mode colours configurable
			keyboard redefinition
	1.6 25 may 2001
		generic XML import and export filter
		preferences
		colour settings
		todobox fixes
		percentage calculations fixes
		XML tag shortcuts
		macrofied node.<c|h>
	1.5 19 may 2001
		switched to autoconf/automake
		joining/splitting of nodes.
		hooks for priority setting
			(press ^P on a to-do node)
		added import/export of XML
		optimisations
		update to man-page
		update documentation
		default format is now XML
		commented all header-functions
	1.4 16 may 2001
		added preferences saving/loading
		replaced tab char in display with a space.
		removal of temporary node, when issuing insert in a new leaf.
		cli mode, for use in scripts etc.
		pipe export by Karsten Hilbert
		automatic generation of README.html
	1.3 14 may 2001
		bloat
		various feedback changes
		debug mode for my own sake
		added collapse-views
	1.2 12 may 2001
		added mouse navigation
		code cleanups
		improved navigation in edit mode
		improved pgup/pgdn
	1.1 10 may 2001
		ran all the files through indent
			indent -bad -bap -br -ts4 -ce -ci4 -i4 -cli4 -cbi0 -ss -di0 -nbc -npsl -T Node -brs -ip4 -bbo --line-length78 
		changed the editor cursor
		minor code tweaks and cleanups
		added manpage by Andras BALI
		switched to bold indication of subnodes
		fixed grabbing of nodes (copy/move)
		improved tree.c, multiple trees are now possible
	1.0 21 april 2001
		changed ctrl+space for marking to ctrl+g in win32 port
		bullet system for all nodes ( +/- [X] [ ] )
		added copying feature
		better user feedback when moving
		various fixes
	0.9 15 april 2001 end of easter holdidays
		undefined keyboard debugging in win32 port
		added in-binary tutorial, and export mode for the include file
		changed curses mode to raw
		upon request from Marck Rintsch, ctrl+s now saves the file
		added more visual feedback when saving, quitting and such
		added an standard bullet on all entries.
	0.8 15 april 2001
		ascii export
		html export
			(doesn't escape any html by itself)
		latex export
			doesn't work for deeper nesting levels than four
		postscript export
			based on the latex export
			uses system calls and requires latex, and dvips
		loading(insertion) of an external file into the db
		added done percentage
	0.7 13 april 2001
		rearranged input structures
		added todo checkboxes
		added error display
		remade the help system
		fixed resizing
		made search case insensitive
		refined search control interface
	0.6b 11 april 2001
		the guadec hacked fixes on strics computer
		
		worked on search ability
		fixed the display of confirm mode in curses ui.
		added reparenting
		cleaned up node_remove
		 
		added load,save and display of todo in standard file format
		changed to bz2 format on distribution file
	0.5
		help item's update
		added insert in the interface
	0.4 march 2001
		added registry functions
		small bugfix for node recurse()  (go right, and to top)
		fixed tab'ing into children of empty nodes bug
		fixed wordwrap
	0.3 15.oct 2000
		first rendition of cgi-bin browser
		wordwrap
		added registry
		added resize functionality
		pageup/pagedown
		changes to help/confirming interface
AUTHORS
	hnb authors
	
	Øyvind Kolås       <pippin@users.sourceforge.net>
		project maintainer
	Andras BALI        <drewie@bigfoot.com>
		Debian Package
		manual page
	Karsten Hilbert    <Karsten.Hilbert@gmx.net>
		pipe export
	Martin van Beilen  <bln@simlab.dhs.org>
		various todo/done issues in the code
	Andrew J Weber     <orang@imonk.com>
		libxml2 import/export
BUGS
	slashes (/) inside nodes are not escaped correctly in cli mode
	bullets/todo boxes, doesn't check that the line is writable (top of screen on multi-line nodes)
TODO
	buffer limits
		they are high,.. but a really long node might crash it
	more entities on each node
		current entities:
			priority
			title/data
			todo item
			done/not done
		future items:
			created date
			modified date
			due date, for project planning
			details dialog for each node to modify such things
			cronological id
	purge todo items on lower levels
	curses interface
		"context" menu for mouse mode
	gtk 2.0
		start
	make a dead tree copy of the source for examination
		enscript *.h *.c -E  --output uts.ps -U 2 -j
	make it stop outdent when - is pressed without being in edit mode,.. and characters are typed.
