2006-10-03  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.9 ========================
	* 

2006-09-27  Andreas Kupries  <andreask@activestate.com>

	* list.test: Fixed expected error message for 8.5.
	  [SF Tcllib Bug 1566439].

2006-09-19  Andreas Kupries  <andreask@activestate.com>

	* struct_set.man: Bumped versions to 2.1.1
	* sets.tcl:
	* struct_tree.man:
	* tree.tcl:
	* pkgIndex.tcl:

2006-09-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree/tn.c (tn_leaf): Fixed mangling of the list of leaves when
	  trying to add a node which is already in the list. Tracked down
	  with valgrind and instrumentation due intermittent failure of
	  treeql testsuite (seg fault).
	  (tn_new): Added initialization of list pointers to allow
	  checking by "tn_leaf".

	* tree/t.c (t_dump): Added function to dump the internal linkage
	  of nodes. Not used by regular code. For debugging.

2006-09-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test: Fixed the new tests for the arc move method. They
	  used hardcoded wrong#args messages. Now the proper the
	  compatibility commands are in place.

2006-07-27  Andreas Kupries  <andreask@activestate.com>

	* tree/t.c (t_newnodename): Fixed bug [SF TCllib Bug 1528614],
	* tree/tn.c (tn_new):       reported by Helmut Giese
	* tree.testsuite:           <hgiese@users.sourceforge.net>.
	  Auto-generation of node names was able to generate
	  duplicates. Now it checks new handles for existence. Also added
	  a check to the function doing actual node creation to check
	  again, and panic on duplicates. Extended testsuite with variant
	  of Helmut's example.

2006-06-25  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.tcl : Added three new arc commands, 'move', 'move-target',
	  and 'move-source'. They change the nodes an arc is attached to,
	  without changing the identity of the arc itself. This makes
	  certain graph operations easier, as there is no need to save the
	  attributes of a node, delete it, create in the new location,
	  then recreate the attribute data.
	* pkgIndex.tcl: Bumped version number for this.
	* graph.man: Added documentation for them.
	* graph.test: Extended the testsuite to cover them as well.

2006-06-13  Andreas Kupries <andreask@activestate.com>

	* list.tcl:        Added two commands requested by Sarnold75,
	* list.test:       see [SF Tcllib RFE 1484791], variants of
	* struct_list.man: map and filter. Implemented, documented,
	* pkgIndex.tcl:    and tested.

2006-01-30  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets.tcl: Fixed [SF Tcllib Bug 1414051], brought implementation
	  of 'include' into sync with documentation. Behaving like
	  'lappend' means that we have to create the variable if it does
	  not exist. Thanks to michael Schlenker <mic42@users.sf.net>.
	* sets.test: Corrected the testsuite as well.

2006-01-28  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix1.test: Replaced [aget] with usage of the standard
	* matrix.test:  [dictsort]. Moved helper commands out of the
	  testsuites proper into a supporting file.

	* graph1.test: Fixed duplicate usage of test names.
	* list.test:   
	* matrix.test: 
	* matrix1.test: 
	* stack.test: 
	* tree1.test: 

2006-01-26  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test: More boilerplate simplified via use of test support.
	* graph1.test:
	* list.test:
	* matrix.test:
	* matrix1.test:
	* pool.test:
	* prioqueue.test:
	* queue.test:
	* record.test:
	* sets.test:
	* skiplist.test:
	* stack.test:
	* tree.test:
	* tree1.test:

2006-01-19  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test: Hooked into the new common test support code.
	* graph1.test:
	* list.test:
	* matrix.test:
	* matrix1.test:
	* pool.test:
	* prioqueue.test:
	* queue.test:
	* record.test:
	* sets.test:
	* skiplist.test:
	* stack.test:
	* tree.test:
	* tree1.test:

2006-01-10  Andreas Kupries <andreask@activestate.com>

	* pool.test: New file. Structured tests.
	* pooltest.tcl: Removed unstructured tests.

	* tree.test: Fixed [SF Tcllib Bug 1316061]. Uncluttering test
	  output.

2005-11-02  Andreas Kupries <andreask@activestate.com>

	* graph.tcl (::struct::graph::_serialize): Fixed bug mishandling
	  the serialization of arcs with spaces in their names. Thanks to
	  Spyros Potamianos <spotam@users.sourceforge.net> for bug report
	  and fix. [SF Tcllib Bug 1345967]

2005-10-27  Andreas Kupries <andreask@activestate.com>

	* tree.bench: Added more benchmarks perturbing structure,
	  invalidating caches, to capture true cost of computing results
	  of various methods.

	* tree_tcl.tcl: Reworked the core algorithm used by the method
	  "descendants". Avoiding the shifting of a list speeds it up
	  around 6 times and the factor is going higher as lists grow
	  larger. This makes the dependent methods (height, serialize,
	  children -all) about 2 times faster than they were with the
	  recursive implementation.

	* tree.bench: Extended the benchmarks for "height" and "serialize"
	  to demonstrate that the height limitation is gone.

	* tree_tcl.tcl: Fixed the limitation of the methods "height" and
	  "serialize" when run on deep trees. Moved to an iterative
	  solution using the core algorithm of "descendants". Factored
	  this code into an internal command used throughout. Rewrote
	  method "children -all" to use this command as well.

	  Impact: The limitation are gone, however the performance of
	  "height" and "serialize" has become 2 to 3 times worse.

	* tree.bench: Substantially extended the benchmarks, covering
	  basically everything except tree walks, modifiers, and
	  tree-global attribute search. Had to restrict tests for
	  "height", "serialize", running into problems with deep
	  trees. Recursive implementation fails for interp recursion
	  limit.

2005-10-21  Andreas Kupries <andreask@activestate.com>

	* tree.bench: Made this benchmark suite operational. Incomplete,
	  but already giving good results.

	* tree_c.tcl: Gave the method functions and their support a
	* tree/m.c:   better prefixes (m_ -> tm_, ms_ -> tms_), to
	* tree/m.h:   make them more unique, tree specific. This is
	* tree/ms.c:  needed to avoid conflicts with future critcl
	* tree/ms.h:  code for graph and other structures.

2005-10-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.8 ========================
	* 

2005-10-07  Andreas Kupries <andreask@activestate.com>

	* tree/t.c (t_deserialize): Fixed bug which caused us to drop the
	  attributes of the new root node when setting up the new tree.

2005-10-06  Andreas Kupries <andreask@activestate.com>

	* tree/m.c (m_WALK): Fixed [SF Tcllib Bug 1313173]. This was
	  refcounting bug for the objects containing the names of the loop
	  variables. We have to declare that we are holding a reference,
	  otherwise the object can be reused when compiling the loop body
	  for the first iteration. This may also release the objects too
	  early, causing crashes.

	* tree/walk.c (t_walkdfs*): Fixed behavioural difference between
	  the two implementations of a tree walker. The dfs code has to
	  save a copy of the child array during the walk to handle the
	  possibility of a child node being moved by the loop body.

	  Note: This area, modifying a tree during walks, has no test
	  cases at all and is in need of them. At least to describe the
	  exact behaviour we have now.

2005-10-03  Jeff Hobbs  <jeffh@ActiveState.com>

	* tree1.tcl (::struct::tree::Serialize): fix serialize of
	  attributes.

2005-09-30  Andreas Kupries <andreask@activestate.com>

	* queue.test: Extended API with new method 'unget'. Updated
	* queue.man:  documentation and testsuite. Version bumped to
	* queue.tcl:  1.4. This implements [SF Tcllib RFE 1229352].
	* pkgIndex.tcl:

2005-09-23  Michael Schlenker <mic42@users.sourceforge.net>

	* prioqueue.tcl : Fixed a bug in binary sort algorithm.
	  prioqueue.test: Thanks to Krzysztof Ska&#322;ecki <krys@dacsystem.pl>
          and Tomasz Kosiak <tk@dacsystem.pl> for spotting it.
          [Tcllib SF Patch 1300795]

2005-09-20  Andreas Kupries  <akupries@shaw.ca>

	* tree.testsuite: Added test constraint 'tree_critcl'. Fixed a
	  number of tests whose results are version dependent, using the
	  new contraint, tcl8.4plus, and tcl8.5plus.

	* tree.tcl (LoadAccel): Restricted use of critcl implementation to
	  Tcl 8.4+.

2005-08-09  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree/*.[ch]: Cleaned code up, per Tcl styleguide.

	* tree/tn.c (tn_not{leaf,node}): Fixed buggy node unlink when list
	  contained only one node. Was a no-op, keeping a reference to
	  deallocated memory, and writing to it when the list was expanded
	  and then reduced again, causing memory smashes.

2005-07-25  Andreas Kupries <andreask@activestate.com>

	* tree.tcl: Moved tcl implementation into "tree_tcl.tcl". This
	  file now contains management code looking for and selecting from
	  the available implementations.
	* tree_tcl.tcl (**NEW**): Contains the tcl implementation of
	  struct::tree, moved out of "tree.tcl".
	* tree_c.tcl (**NEW**): Contains the toplevel parts of the critcl
	  implementation of struct::tree.
	* tree/*.[ch] (**NEW**): Contains the bulk of the critcl
	  implementation of struct::tree.
	* tree.test: Moved actual tests into "tree.testsuite". This file
	  now contains the generic helper commands and management code
	  loading, activating and iterating over all available
	  implementations.	
	* tree.testsuite (**NEW**): Contains the actual tests, moved out
	  of "tree.test". The tests were updated to take the cosmetic
	  differences between tcl and critcl implementations into account.
	* ../package_version.tcl: Added the critcl implementation of
	  struct::tree to the list of files to compile for tcllibc.

	* struct_tree.man: Added clarifications regarding acceptable
	  arguments.

	* tree.tcl: Smoothed error messages, added some missing argument
	  checks, rewrote handling of index arguments to make code mmore
	  clear. Fixing bugs in constructor, was not cleaning up a
	  partially build object when deserialization failed.

	* tree.test: Adapted to changed error messages. Added tests to
	  for a number of problems which had been forgotten so far. Made
	  the output of a number of tests (tree structure) unambigous.

2005-05-23  Andreas Kupries <andreask@activestate.com>

	* list.test:
	* list.tcl (::struct::list::Lflatten): Fixed [SF Tcllib Bug
	  1206499] Replaced the 'eval' construction with a more basic
	  check for list syntax and handling of the data. The removed
	  construct was unable to handle elements containing special
	  characters (Brackets, Braces, Double-apostrophes, etc.)
	  correctly. The bug was reported by Yahalom Emet
	  <yahalom@users.sourceforge.net>. This is actually something we
	  created Tcl 8.5's {expand} for. Extended the testsuite as well.

2005-05-10  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man:
	* tree.test:
	* tree.tcl: New method 'walkproc'. Like walk, but calls a command
	  prefix (three arguments). Extended documentation, testsuite.

	* tree.tcl: Minor touchup of object creation.
	* graph.tcl: Minor touchup of object creation.
	* stack.tcl: Minor touchup of object creation.
	* queue.tcl: Minor touchup of object creation.
	* matrix.tcl: Minor touchup of object creation.

2005-05-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl:        Added two methods to the class, returning the
	* tree.test:       list of all nodes, or the list of leaf nodes.
	* struct_tree.man: Both are easy to determine by the object
	  itself, and require either a walk or (children -all) otherwise,
	  both expensive.

2005-04-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.tcl: Replaced the use of the global variable 'version'
	  with a properly namespaced form. This fixes the [SF Tcllib Bug
	  1177108], reported by Stephen Huntley
	  <blacksqr@users.sourceforge.net>.

2005-02-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_list.man: Extended to cover the new functionality.

	* list.tests: Extended testsuite for the new functionality, see
	  below.
	
	* list.tcl: New functionality. Exchange of two elements of a list,
	  and handling of list permutations (first, next, all, foreach).
	  The code has been taken from the Wiki, page 11262. The swap code
	  by Richard Suchenwirth. The 'firstperm' code by Kevin Kenny. The
	  'nextperm' algorithm by Donal E. Knuth [*], as translated to Tcl
	  by Kevin Kenny. Generation of all permutations and looping over
	  them by myself, using code from the module 'control' as well.
	  -- [*] Detailed references in the documentation.

2004-10-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.7 ========================
	* 

2004-10-02  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Added a bit more structure to the manpage,
	  added an example demonstrating the creation of nodes, added an
	  explicit statement that new nodes are created with the method
	  "insert".

2004-09-29  Andreas Kupries <andreask@activestate.com>

	* record.tcl:  Fixed [Tcllib SF Bug 1018733]. Corrected management
	* record.text: of _level, which was reset to the level 0 to early,
 	  and also was not decremented after a sub-record was completed.

	* record.tcl (Delete): Fixed [Tcllib SF Bug 1023973]. Do not count
	* record.test:         the id generator down. Added test case for this.

	* tree.tcl:        Fixed [Tcllib SF Bug 1034924]. Both tree and graph
	* struct_tree.man: depend on struct::list for some of their methods.
	* tree.test:       Now in the code, documented as well, testsuite
	* graph.tcl:       header code extended.
	* graph.man:
	* graph.test:

2004-09-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* skiplist.tcl: Fixed expr'essions without braces.

	* graph.tcl (CheckSerialization): Fixed nested reuse of foreach
	  variable (attr).

2004-09-21  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test:  Fixed [Tcllib SF Bug 1007396]. Multiple use
	* graph.tcl:   of the various restrictions is not allowed.
	* graph.man:   Added to code, test suite, and documentation.
	* graph1.test:
	* graph1.tcl:
	* graph1.man:

2004-08-17  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* stack.tcl: Corrected typo in constructor error message,
	* queue.tcl: due to copying from tree. Found by Michael
	  Schlenker.

2004-08-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Added methods 'ancestors' and 'descendants'.
	* tree.test:
	* tree.tcl:

	* struct_tree.man: Added a prune operation to the tree walk
	* tree.tcl:        command. This implements the [SF Tcllib
	* tree.test:       RFE 916160].

2004-08-09  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl (::struct::tree::tree, ::struct::tree::_destroy):
	  Better alias for the object command (removed superfluous leading
	  colons).

	* stack.man: Stack, queue; version bumped to 1.3.
	* queue.man: 
	* stack.tcl: 
	* queue.tcl: 
	* pkgIndex.tcl:

	* queue.test:
	* queue.tcl: Changed way of mapping from queue object commands to
	  associoated namespaces. The object namespace now has the same
	  name and location of the object command. Adapted all tests to
	  account for this change.

	* queue.test:
	* queue.tcl: Changed dispatcher to auto-generate the list of queue
	  commands when a wrong one is given. Updated tests to account for
	  this. Changed dispatcher to uplevel 1 the method execution,
	  updated walking system to reflect this change.

	  See log entry 2003-07-06 as well.

	* stack.test:
	* stack.tcl: Changed way of mapping from stack object commands to
	  associated namespaces. The object namespace now has the same
	  name and location of the object command. Adapted all tests to
	  account for this change.

	* stack.test:
	* stack.tcl: Changed dispatcher to auto-generate the list of stack
	  commands when a wrong one is given. Updated tests to account for
	  this. Changed dispatcher to uplevel 1 the method execution,
	  updated walking system to reflect this change.

	  See log entry 2003-07-06 as well.

	* stack.man: Fixed [SF Tcllib 1005380]. Documentation for peek and
	  pop now matching the actual behaviour. See also entry 2003-04-25
	  for the same thing, for queue.

	* tree.tcl: Spelling police.
	* graph.tcl:
	* stack.tcl:
	* queue.tcl:
	* matrix.tcl:
	* ChangeLog:

2004-08-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets.tests:
	* sets.tcl (::struct::set::Sdifference): Fixed the [Tcllib SF Bug
	  1002143]. Thanks to Todd Coram <maroc@users.sourceforge.net> for
	  the report. Set elements containing parentheses screw up the
	  special implementation using the elements as names for local
	  vars, as they are not seen as regular locals, but as array
	  elements. Disabled the special implementation, using the regular
	  one across versions. Extended the testsuite.

	* graph.test: Fixed [SF Tcllib Bug 1003671]: Ensured that
	* tree.test:  (de)serialization of empty graph/tree is
	* graph.tcl:  working properly. Thanks to Bhushit Joshipura
	* tree.tcl:   <bhushit@users.sf.net> for the report.

2004-08-03  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test: Fixed [SF Tcllib Bug 1000716]: Unset of last
	* tree.test:  attribute followed by delete does not result
	* graph.tcl:  in error anymore. Thanks to Brian Theado
	* tree.tcl:   <btheado@users.sf.net> for both report and fix.

2004-06-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl (_search): Fixed bug reported by Joachim Kock
	  <kock@math.uqam.ca>, using his fix. Search went into an infinite
	  loop if -nocase was used.
	* matrix.test: Added a testcase.

2004-05-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.6.1 ========================
	* 

2004-05-20  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.test:    Added clean up commands to prevent tests
	* matrix1.test:   from interfering with each other. Testsuite
	* tree1.test:     is now passing again.

	* graph.man:      Fixed the 'require' declarations in the
	* matrix.man:     documentation to use the correct package
	* pool.man:       names.
	* prioqueue.man:
	* queue.man:
	* record.man:
	* skiplist.man:
	* stack.man:
	* struct_list.man:
	* struct_set.man:
	* struct_tree.man:

	* tree1.man:   Folded the v1 data structures back into the struct
	* tree1.tcl:   directory, as their own packages. Recorded the old
	* tree1.test:  v1 struct as a set of packages now as well. The
	* graph1.man:  unchanged data structures from struct v1 have been
	* graph1.tcl:  removed from the repository. They were duplicates.
	* graph1.test:
	* matrix1.man:
	* matrix1.tcl:
	* matrix1.test:
	* pkgIndex.tcl:

2004-05-18  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.tcl:     Made all data structures full packages.
	* list.tcl:
	* matrix.tcl:
	* pkgIndex.tcl:
	* pool.tcl:
	* pooltest.tcl:
	* prioqueue.tcl:
	* queue.tcl:
	* record.tcl:
	* sets.tcl:
	* skiplist.tcl:
	* stack.tcl:
	* struct.tcl:
	* tree.tcl:

	* graph.test:    Updated all testsuites to report the versions
	* list.test:     of the packages they test.
	* matrix.test:
	* prioqueue.test:
	* queue.test:
	* record.test:
	* sets.test:
	* skiplist.test:
	* stack.test:
	* tree.test:

	* graph.man:     Updated the documentation to show the correct
	* matrix.man:    new package names.
	* pool.man:
	* prioqueue.man:
	* queue.man:
	* record.man:
	* skiplist.man:
	* stack.man:
	* struct_list.man:
	* struct_set.man:
	* struct_tree.man:

2004-02-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* pkgIndex.tcl: Overall package bumped to v2.1
	* struct.tcl:

	* sets.tcl:       Added include, exclude, add, and subtract
	* sets.test:      operators, and a new predicate subsetof.
	* struct_set.man: Added documentation for the new methods
	                  above. Added tests for the new methods.

	* sets.tcl: Typo police. No functional changes.

2004-02-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.6 ========================
	* 

2004-02-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.tcl (split): New method, like 'filter', but returns lists
	* list.test:        of both passing and failing elements. Extended
	* struct_list.man:  both testsuite and documentation.

2004-02-11  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.tcl (assign): Synchronized API to Tcl 8.5 lassign.
	* struct_list.man:

	* list.test: Added conditionals for version dependent results.

2004-02-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.man:  Added new method 'arc attr' ad 'node attr' to
	* graph.tcl:  the graph data structure. They serve the same
	* graph.test: purpose as the 'attr' method for trees. See below.

	  Additional the 'arcs' and 'nodes' method have been given
	  '-filter' options, similar to the filter for the children of a
	  node in trees.

2004-02-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: New method 'attr' for attribute searches
	* tree.tcl:        based on attribute name, and node
	* tree.test:       restrictions.

2004-02-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Extended the method 'children', now allows
	* tree.tcl:        node filtering and recursive listing of all
	* tree.man:	   children in the tree starting at the node.

	* struct_list.man: Added a 'shift method to 'struct::list'.
	* list.tcl:
	* list.test:

	* struct_list.man: Added a 'filter' method to 'struct::list'.
	* list.tcl:        This method applies a test to all elements
	* list.test:       of a list and returns a list containing
	                   only those elements which pass the test.

2004-02-03  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.tcl (repeat(n)):		** API INCOMPATIBILITY **

	  Renamed the existing 'repeat' to 'repeatn' to keep the
	  functionality. Created new 'repeat' command which is
	  functionally equivalent to the 'lrepeat' command found in the
	  forthcoming Tcl 8.5.

	* struct_set.man: New submodule for set operations. Implementation,
	* sets.tcl:       documentation, tests, and integrated into the
	* sets.test:      main package.
	* struct.tcl:

2004-01-29  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Extended with table showing the relationship
	  between the various combination of type and order, and the
	  possible visitor actions.

2004-01-28  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Updated documentation.
	* tree.test: Updated testsuite for modified 'walk' syntax.
	* tree.tcl (method walk): Modified to use list of loop variables,
	  containing either one or two. Default: One variable, node
	  information. When two specified the first refers to action data.

	* list.test: Added test for call with illegal option.
	* list.tcl (Lflatten): Added proper error message when
	  encountering an unknown/illegal option.

2004-01-26  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Updated the documentation to reflect the
	  changes below.

	* tree.test: Updated testsuite to reflect the changes made below.
	
	* tree.tcl (walk): Changed API to be more like [foreach]. Allowing
	  break/return/continue in the walk body as well now too.

2004-01-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.test: Implemented (de)serialization of matrix objects,
	* matrix.tcl:  copy and assignment operators, and a transpose
	* matrix.man:  method. Extended testsuite and documentation.

2004-01-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.man:  Implemented Ed Suominen's sort methods, with
	* matrix.tcl:  modifications to speed things up, and to have
	* matrix.test: a more standard API (-options).

2004-01-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.man: Documented method 'links'.

	* matrix.test: Updated test to cover for method links.
	* matrix.tcl: Changed the code to determine the list of available
	  methods automatically for use in the error message when an
	  unknown method is called.

	* matrix.test:
	* matrix.tcl: Namespaces of objects now standalone, and not inside
	  of struct::matrix anymore. Arbitrary placement of objects is now
	  possible, including nested namespaces. Cleanup of all references
	  to instance variables.

	* matrix.tcl: Made the return of errors more regular.

	* matrix.tcl: Changed a number of eval calls to the more proper
	  'uplevel 1'. This means that an implementation of a method can
	  now assume that it is called on the same stack level as the
	  method itself.

2004-01-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl: Typo in comments fixed.
	* matrix.tcl (__set_rect): Fixed typos in var names causing the
	  system to retain bogus cache data.

2003-11-18  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* prioqueue.tcl: Applied patch in file 64215 of [SF Tcllib Bug 822850].
	* skiplist.tcl:  This cleans up a number of dangerous uses of [eval]
	* matrix.tcl:    and makes them more robust.
	* queue.tcl:
	* stack.tcl:
	* pool.tcl:
	
	* pool.tcl (::struct::pool::request): Changed to return 0 as
	  documented when trying to get an already allocated item. Fixed
	  [SF Tcllib Bug 842408]. Used the alternative fix.

2003-10-21  Andreas Kupries  <andreask@activestate.com>

	* struct_tree.man: Added more documentation about the root node of
	  tree's. [Bug 827643].

2003-07-21  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl: Fixed bugs in tree serialization code found when
	  hitting them during testing the graph.

	* graph.man:  Completed the implementation of graph serialization.
	* graph.tcl:  Updated testsuite, documentation.
	* graph.test:

2003-07-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl:  Created 'ldelete' and 'lset' (emulation pre 8.4)
	* graph.tcl: and replaced as much 'lreplace's as possible. Using
	             the K operator for speed, encapsulated in the two l
	             commands.

	* graph.man: Implemented the renaming of nodes and arcs.
	* graph.tcl:
	* graph.test:

2003-07-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.tcl:		** API INCOMPATIBILITY **
	* graph.test:
	* graph.man: Same changes in attribute handling as for
	  'tree'. Noted that the graph attributes had neither 'append' nor
	  'lappend' methods. Added. Documentation and testsuite updated.

	* pkgIndex.tcl:		** API INCOMPATIBILITY **
	* struct_tree.man:
	* tree.test:
	* tree.tcl: More rework. The attribute APIs are now backward
	  incompatible, the default attribute 'data' has been dropped. The
	  whole module 'struct' has been bumped to version 2.0 because of
	  this. Reworked the testsuite for the changed APIs. Reworked the
	  (de)serialization stuff a bit and added tests for them. Added an
	  API to rename nodes, and an API to query the name of the
	  root node. The APIs 'getall' and 'keys' now allow usage of glob
	  patterns to restrict their results. Documentation is now
	  uptodate. Added API to compute the 'height' of a node (=
	  distance to its deepest child).

2003-07-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.test:	
	* tree.tcl: Reworked node attribute storage. Name of array to
	  store the information is now dissociated from the name of the
	  node. This enables the use of arbitrary node names, i.e. ':' in
	  node names. The second benefit is that nodes without attribute
	  data (normal) require less memory than before. Removed the now
	  irrelevant validation of node names and updated the testsuite.

	* tree.test:
	* tree.tcl: Changed way of mapping from tree object commands to
	  associated namespaces. The object namespace now has the same
	  name and location of the object command. Adapted all tests to
	  account for this change.

	* tree.test:
	* tree.tcl: Changed dispatcher to auto-generate the list of tree
	  commands when a wrong one is given. Updated tests to account for
	  the now correct sort order. Changed dispatcher to uplevel 1 the
	  method execution, updated walking system to reflect this change.

2003-07-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.tcl: The changes in the list dispatcher required
	  corresponding changes in a number of methods: upvar/level 2 =>
	  upvar/level 1. Detected by testsuite. Bad me, should have run it
	  immediately. Bugs fixed.

	* list.test: Extended the testsuite.
	* list.tcl (lcsInvertMerge2): Fixed problem with extending the
	  result with an chunk of type unchanged, for the case that this
	  happens at the very beginning, i.e. for an empty result. This
	  fixes SF Tcllib bug [765321].

2003-05-20  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.tcl (dispatcher): eval => uplevel so that upvar's in the
	  method commands do not need to know about the dispatcher frame
	  in the stack.

	* list.man:
	* list.tcl (dbJoin(Keyed)): Extended the commands with an option
	  -keys. Argument is the name of a variable to store the actual
	  list of keys into, independent of the output table. As the
	  latter may not contain all the keys, depending on how and where
	  key columns are present or not. Additionally cleanups in the use
	  of loop variables in the keyed helper commands 'frink' complained
	  about.

2003-05-16  Andreas Kupries  <andreask@activestate.com>

	* Extension of the package functionality warrants version bump to 1.4.
	
	* list.man: Added descriptions of the db join commands, and
	  section explaining the table joins.

	* list.test: Added tests for the db join functionality. Adapted
	  existing tests to changed (fixed) error messages.

	* list.tcl: Rewrote the main dispatcher a bit to make it simpler,
	  and to allow us to hide internal functions from it. Added
	  'dbJoin(Keyed)' for relational table join (inner, left/right/full
	  outer). Fixed function name in some error messages.

2003-05-14  Andreas Kupries  <andreask@activestate.com>

	* tree.tcl: Added some [list]'s to show node names containing
	  spaces properly in error messages.

	* tree.test: Reworked to test handling of item nodes
	  containing spaces.

	* tree.bench: Reworked, added helper procedures, test cases are now
	  simpler.

	* struct_list.man: Fixed typos in the examples.

2003-05-06  Jeff Hobbs  <jeffh@ActiveState.com>

	* tree.test: 
	* tree.tcl: allow node names with space chars and single :.
	  Double :: may be OK, but the check against it is still in.

2003-05-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.4 ========================
	* 

2003-05-05  Andreas Kupries  <andreask@activestate.com>

	* prioqueue.tcl: Applied patch by author Michael Schlenker
	  <mic42@users.sourceforge.net>. Refactors internals for
	  speed. Passes the prioqueue testsuite.

2003-04-25  Andreas Kupries  <andreask@activestate.com>

	* queue.man: Documentation fix. peek/get throw errors if more was
	  requested than in the queue. The documentation talked about
	  returning empty strings. Thanks to Michael Schlenker
	  <mic42@users.sourceforge.net> for the report.

	* prioqueue.test: Extended to check for stable insertion.
	* prioqueue.tcl (__elementcompare): Bugfix, makes insertion stable.
	* prioqueue.man: New, documentation.

	* skiplist.man: Typo fix. Thanks to Michael Schlenker
	  <mic42@users.sourceforge.net> for the report.

2003-04-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.bench: New file, beginnings of a benchmark suite for the
	  data structure 'struct::tree'.

2003-04-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.man: Changed name to struct_tree.man. Was in conflict with
	  tree manpage of BLT.

2003-04-22  Andreas Kupries  <andreask@activestate.com>

	* graph.man: Switched cgraph reference to a purl supplied by the
	  cgraph author, and added wiki reference.

2003-04-16  Andreas Kupries  <andreask@activestate.com>

	* prioqueue.tcl (__elementcompare): Failures in testsuite fixed,
	  patch provided by original author, Michael Schlenker
	  <mic42@users.sourceforge.net>.

2003-04-15  Andreas Kupries  <andreask@activestate.com>

	* skiplist.man:
	* skiplist.tcl:
	* skiplist.test: New files. Patch #553980 submitted by Eric Melski
	  <ericm@users.sourceforge.net> on behalf of Keith Vetter.

	* prioqueue.tcl:
	* prioqueue.test: New files. Patch #607085 submitted by Michael
	  Schlenker <mic42@users.sourceforge.net>.

2003-04-15  Andreas Kupries  <andreask@activestate.com>

	* tcllib_list.man: Changed name to struct_list.man. Allows for
	  usage of struct outside of tcllib, not as big a coupling.

	* graph.tcl: Redone the setting up of namespace a bit to prevent
	  problem with the generation of a master package
	  index. struct.tcl bailed out with an error because the namespace
	  was net set up when using [pkg_mkIndex] in this directory.

2003-04-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test:
	* graph.man:
	* graph.tcl: Added code to look for the C-implementation, cgraph,
	  first, and to fall back to the Tcl implementation if cgraph is
	  not present (#720348). The documentation links to the place
	  where cgraph can be had from. Note presence of cgraph when
	  executing the testsuite.

2003-04-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.man: Changed name to tcllib_list.man to prevent a clash
	  with tcl's manpages.

2003-04-11  Andreas Kupries  <andreask@activestate.com>

	* struct.tcl:
	* list.man:
	* matrix.man:
	* pool.man:
	* queue.man:
	* record.man:
	* stack.man:
	* tree.man:
	* pkgIndex.tcl:  Set version of the package to 1.3.

2003-04-09  Andreas Kupries  <andreask@activestate.com>

	* list.man:
	* list.test:
	* list.tcl: Added 'lcsInvertMerge'.

2003-04-08  Andreas Kupries  <andreask@activestate.com>

	* list.man:
	* list.test:
	* list.tcl: Added and documented commands [iota], [equal], and
	  [repeat]. Extended the testsuite.

2003-04-02  Andreas Kupries  <andreask@activestate.com>

	* list.tcl:
	* list.test: Fixed SF tcllib bug #714209.

	* ../../../examples/struct: Added example applications for usage
	  of longestCommonSubsequence and lcsInvert.

	* struct.tcl: Integrated new list commands.

	* list.tcl:  Added commands 'reverse', 'assign', 'flatten',
	* list.man:  'map', and 'fold' to the suite of list functions.
	* list.test: 

2003-04-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.man:  New files, extended list manipulation
	* list.tcl:  facilities. Started out with Kevin Kenny's
	* list.test: implementation of the algorithm to find the longest
	             common subsequence of two sequences, aka lists.
		     Added myself a method to invert a LCS into a
		     description of differences instead.

2003-04-01  Andreas Kupries  <andreask@activestate.com>

	* record.test: Applied changes provided by Brett Schwarz
	  <schwarzkopf@users.sourceforge.net>. His comments: I had changed
	  the return when encountering a circular record; previously I
	  returned "", but now I return an error. This fixes record.test
	  to reflect the change. Part of fix for Tcllib SF Bug #709375.

	  Additional changes by myself: Reformatted (proper tcl
	  indentations). Renumbered so that all tests have unique id
	  numbers (Before all tests had id 0.1).

2003-02-25  David N. Welton  <davidw@dedasys.com>

	* matrix.tcl: Require Tcl 8.2 because of string map.  Use string
	map instead of regexp.

2003-01-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.man: More semantic markup, less visual one.
	* matrix.man:
	* pool.man:
	* record.man:
	* tree.man:

2002-11-06  Brett Schwarz  <schwarzkopf@users.sourceforge.net>

        * record.tcl: cleaned up code based on output from frink

2002-11-05  Brett Schwarz  <schwarzkopf@users.sourceforge.net>

        * struct.tcl: modified to include record.tcl

        * record.man:
        * record.html:
        * record.n:
        * record.test:
        * record.tcl: new data structure

2002-10-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test: 
	* graph.man:
	* graph.tcl: Implemented FR 603924. getall, keys, keyexists
	  methods for keys of the whole graph.

2002-08-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.test: Followup to fix for bug SF #587533. Had to update the
	  test suite too.

2002-08-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl (lappend): Fixed bug SF #587533 reported by Evan Rempel
	  <erempel@users.sourceforge.net>.

	* pool.tcl: Fixed bug SF #585093, reported by Michael Cleverly
	  <cleverly@users.sourceforge.net>. Patch provided by Michael too.

2002-07-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.man: Updated the documentation to clarify the behaviour.

	* test.tcl: Updated testsuite, part of the patch below.

	* tree.tcl (_move): Accepted patch by Brian Theado
	  <btheado@users.sourceforge.net> fixing the behaviour of move, SF
	  bug #578460. The command now also validates all nodes before
	  trying to move any of them.

2002-05-27  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.man: Fixed typo (graph -> matrix).

	* struct.tcl: Added pool files to list of files to source.

	* pool.man: New documentation for pool based upon the original
	  HTML manpage.

	* pool.html:
	* pooltest.tcl:
	* pool.tcl: New data structure, pool, by Erik Leunissen
	  <e.leunissen@hccnet.nl>. Modified code to be a sub-namespace of
	  ::struct, made it a part of the struct package. No regular
	  testsuite yet (see pooltest.tcl for the irregular testsuite).

2002-05-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.n: This file is out of sync.
	* graph.man:
	* graph.test:
	* graph.tcl: See tree, for arcs and nodes.

	* tree.man:
	* tree.n:
	* tree.test:
	* tree.tcl: Accepted FR #552972 (new methods append, lappend,
	  getall, keys, keyexists) for tree structures.

2002-04-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl: Fixed SF Tcllib #532791 about unsetting of elements
	  in linked arrays as reported by Ken Jones
	  <kenj@users.sourceforge.net>. Unsetting an element in a linked
	  array now sets the corresponding cell in the matrix to the empty
	  string, and the corresponding elements in other linked arrays
	  are now unset too.

	* tree.man: New file, doctools manpage.

2002-03-25  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl: Fixed bug #532783 reported by Ken Jones
	  <kenj@users.sourceforge.net>. Any operation adding new material
	  to a linked matrix causes a circular trace (op -> "MatTraceOut"
	  -> "MatTraceIn" -> set cell) and the inbound trace fails because
	  the data structures are not uptodate causing the range checks in
	  "set cell" to fail. Fixed by breaking the cycle. Calls to
	  "MatTraceIn" are now disabled while we are in "MatTraceOut".

2002-03-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.man: Added example of formatting a matrix using tabular
	  reports (See tcllib module "reports" too.). Fixes #530207.

2002-03-09  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.n:
	* matrix.man:
	* matrix.test:
	* matrix.tcl: Accepted FR #524430 and added option -nocase to the
	  'search' method.

	* matrix.man: Added doctools manpage.

2002-03-02  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.man: Added doctools manpage.

2002-02-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl: Frink run.

2002-02-01  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* Version up to 1.2.1 to differentiate development from the
	  version in the tcllib 1.2 release.

	* matrix.test:
	* matrix.tcl: See below, but not complete.
	* queue.test
	* stack.test:
	* graph.tcl: 
	* graph.test: 
	* tree.tcl: 
	* tree.test: Updated code and tests to cover all paths through the
	  code.

2002-01-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* Bumped version to 1.2

2001-11-26  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.tcl (add rows): Indices were transposed. Fixed.

2001-11-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* matrix.test:
	* matrix.n:
	* matrix.tcl: Implementation of FR #481022: matrix printing and
	  searching.

2001-11-19  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.test:
	* graph.n:
	* graph.tcl: Applied patch #483125 provided by Frank Pilhofer
	  <fp@fpx.de>. The patch adds key/value information for the whole
	  graph and extends the selection methods 'arcs' and 'nodes' to
	  allow selection based on keys and their values.

2001-10-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* pkgIndex.tcl:
	* struct.tcl:
	* graph.n:
	* matrix.n:
	* queue.n:
	* stack.n:
	* tree.n: Version up to 1.1.1

2001-09-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* The changes below fix bug [458011].

	* tree.test (6.16): New test. Checks verificator of forbidden names.

	* tree.tcl (::struct::tree::_insert): Added verification that node
	  names do not contain forbidden characters.

	* tree.n: Documented limitations on node names. Documented allowed
	  index "end" for insert.

2001-07-10  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* matrix.tcl: Frink 2.2 run, fixed dubious code.

2001-06-21  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* tree.tcl:
	* graph.tcl: Fixed dubious code reported by frink.

2001-06-19  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* matrix.n: Fixed nroff trouble.

2001-05-20  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* matrix.tcl (insert row/column): Fixed wrong references to the
	  internal add row/column procedures.

	* modules/struct/matrix.test: Added 8.11 and 8.12 to test the case
	  of 'insert FOO' devolving to 'add FOO'.

2001-05-01  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* Committed changes (matrix) to CVS head at SF.

2001-04-17  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* matrix.n: updated and completed documentation
	* matrix:test: Added testsuite
	* matrix.tcl: Added the implementation.

2001-04-12  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* struct.tcl: Added loading of the matrix definition.

	* matrix.n: Adding matrix structure.

2000-04-07  Eric Melski  <ericm@scriptics.com>

	* stack.test: 
	* queue.test: Changed "package require struct" to "source [file
	  join [file dirname [info script]] xxxx.tcl]", which is more reliable.

	* tree.test: 
	* tree.tcl: Added support for different walk orders (post,
	  in, and both) [RFE: 4420].  Added support for percent substitution
	  on walk command.  (WalkCall) Added protection against node/tree
	  names with spaces.

	* graph.tcl: 
	* graph.test: 
	* graph.n: Graph implementation from Andreas Kupries.

2000-03-20  Eric Melski  <ericm@scriptics.com>

	* tree.test: 
	* tree.n: 
	* tree.tcl: Added support for inserting/moving multiple nodes at
	  once.  Changed behavior of insert with respect to inserting nodes
	  that already exist; instead of an error, it will move the node.

2000-03-14  Eric Melski  <ericm@scriptics.com>

	* tree.n: Added a brief description of what a tree is.

2000-03-10  Eric Melski  <ericm@scriptics.com>

	* tree.n: 
	* tree.tcl: 
	* tree.test: Applied patch from [RFE: 4337], with enhancements for
	  better efficiency, and additional test cases; adds cut and splice
	  functions to tree.

2000-03-09  Eric Melski  <ericm@scriptics.com>

	* tree.n: 
	* tree.tcl: 
	* tree.test: Applied patch from [RFE: 4338]; adds index function to
	  tree.  Applied patch from [RFE: 4339], with slight modification; adds
	  numchildren function to tree.  Applied patch from [RFE: 4336],
	  with additional error checks and test cases; adds next, previous
	  functions to tree.  Added extra tests for walk command.

	* tree.tcl: Added isleaf function and tests [RFE: 4340]

	* struct.tcl: Changed order of namespace import/namespace export
	  calls.  Added -force to namespace import calls.

	* tree.test: 
	* stack.test: 
	* queue.test: Adapted tests to run in/out of tcllib test framework.

	* tree.test:
	* tree.tcl: Added code to auto-generate node names on insert if no
	  name is given [RFE: 4345]

2000-03-08  Eric Melski  <ericm@scriptics.com>

	* tree.test:
	* tree.tcl: Added check for node existence in children function
	  [Bug: 4341]

2000-03-03  Eric Melski  <ericm@scriptics.com>

	* tree.tcl: Changed usage information for tree::_walk.

	* tree.n: Enhanced description of walk function, fixed a typo.
