2011-12-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.14 ========================
	* 

2011-09-17  Michael Schlenker <mic42@users.sourceforge.ner>
        
	* list.tcl: [Bug 3308051]: Fixed noncommutative equal check
	* list.test:

2011-01-24  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.13 ========================
	* 

2010-10-26  Andreas Kupries  <andreask@activestate.com>

	* graphops.man: [Bug 3090738]: Fixed typo in command names.

2010-10-05  Andreas Kupries  <andreask@activestate.com>

	* list.tcl (::struct::list::Lshuffle): New command, shuffling a
	* list.test: list into random order. Bumped version to 1.8.
	* struct_list.man: Extended testsuite, updated documentation.
	* pkgIndex.tcl: Removed the backward compatibility implementation
	  of 'lset' from code and tests and bumped the runtime
	  requirements to Tcl 8.4.

2010-09-10  Andreas Kupries  <andreask@activestate.com>

	* queue_oo.tcl: Established minimum requirements for TclOO
	* stack_oo.tcl: to support the two classes. Bug 3062782 was
	  a very old TclOO (0.3) interfering in the test.

2010-09-09  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/ops/adjmatrix.test: Converted to tcltest v2 for
	* graph/tests/ops/components.test: proper independence of the
	* graph/tests/ops/componentof.test: tests. Preparation for
	* graph/tests/ops/bipartite.test: the investigation of Bug
	* graph/tests/ops/kruskal.test: 3062782.
	* graph/tests/ops/prim.test:
	* graph/tests/ops/tarjan.test:

2010-05-25  Andreas Kupries  <andreask@activestate.com>

	* queue.testsuite: Fixed bug in C implementation of 'unget'.
	* queue/m.c: Used bogus variable in assert, hit only when trying
	* ../tcllibc.tcl: to reuse a list Tcl_Obj for the unget
	  buffer. Tcllibc version bumped to 0.3.9. Testsuite extended.

2010-03-25  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph/arcshimmer.c: Squash a number of warnings in the C
	* graph/methods.c: implementations of graph, sets, and trees,
	* graph/nodeshimmer.c: using casts, and including missing
	* sets/s.c: headers.
	* tree/m.c:
	* tree/shimmer.c:
	* tree/walk.c:

	* stack_oo.tcl: Remove superfluous 'package require'. Handled by
	  stack.tcl.

2010-03-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* stack_oo.tcl: Tcl implementation of struct::stack based
	* stack.tcl: on TclOO. Available in 8.5+TclOO, and 8.6+.
	* stack.bench: Fixed missing dependency in benchmarks.
	* stack.test: Updated tests (different error messages).
	* stack.testsuite: Bumped version to 1.5.1.
	* stack.man:
	* pkgIndex.tcl:

	* queue_oo.tcl: Tcl implementation of struct::queue based
	* queue.tcl: on TclOO. Available in 8.5+TclOO, and 8.6+.
	* queue.bench: Updated and fixed benchmarks, and tests
	* queue.test: (different error messages). Bumped version
	* queue.testsuite: to 1.4.2.
	* queue.man:
	* pkgIndex.tcl:

	* sets.bench: Updated to allow switching of implementations.

2010-03-16  Andreas Kupries  <andreask@activestate.com>

	* pkgIndex.tcl: Fix version mismatch for struct::stack.

2009-03-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* stack.man: struct::stack bumped to version 1.5. API extensions:
	* stack.tcl: New methods getr, peekr, trim*. The first two return
	* stack.test: their results in reversed order. For use in places
	* stack.testsuite: which need the reverted order. As the regular
	* stack/m.c: order requires an internal [lreverse], to be undone
	* stack/m.h: by the caller it is better to simply avoid both
	* stack/ms.c: [lreverse]s. Similarly, trim* does the trim, without
	* stack/s.c: returning the trimmed items, for use where they are
	* stack/s.h: thrown away anyway. ... Further, inlined the peek/pop
	* stack_tcl.tcl: calls internal to get and trim, allowing
	* pkgIndex.tcl: simplification of the resulting code, like
	  avoidance of additional argument checks. ... At last, now using
	  8.5 features when detecting Tcl 8.5+ as our runtime ... I.e.
	  ensembles for the method dispatch instead of doing everything on
	  our own, with eval and uplevel. Result: The speed of the Tcl
	  implementation roughly doubles.

	* stack.bench: Updated to use the ability to switch between the
	  various implementations.

2009-12-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.12 ========================
	* 

2009-11-25  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph_tcl.tcl: Fixed mismatches due to the 2009-11-03 change.
	* graph/tests/command.test:

	* pkgIndex.tcl: Extended struct::stack with convenience methods
	* stack.man: 'get' and 'trim', to get whole stack, and alternate
	* stack.tcl: argument specification of 'pop'. Bumped version to
	* stack_tcl.tcl: 1.4. Bumped the tcllibc umbrella package to
	* stack.testsuite: version 0.3.7.
	* stack/m.c: version
	* stack/m.h:
	* stack/ms.c:
	* stack/ms.h:
	* stack/s.c:
	* stack/s.h:

2009-11-03  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/XOpsSetup: [Bug 2811747]: Removed the import of
	* graph/tests/Xsetup: command struct::graph into the global
	* graph/tests/Xsupport: namespace in the testsuite, and updated
	* graph/tests/arcs.test: all users. This prevents the masking
	* graph/tests/command.test: of scope errors in the graph::op
	* graph1.test: package when its testsuite is run.

2009-09-24  Andreas Kupries  <andreask@activestate.com>

	* list.test: [Bug 2557046]: Updated the testsuite to for changes
	  to lassign and lrepeat in 8.6 (do nothing gracefully, and
	  changes to error messages). Affected tests are either skipped or
	  get conditional results.

	* tree.testsuite (tree-*-1.8): Pattern match the name, do not
	  expect a particular id number (Depends on which previous tests
	  have run, especially in graphops).

2009-09-24  Andreas Kupries  <andreask@activestate.com>

	* The integration of Michal Antoniewski's (<antoniewsli@gmail.com>)
	  work on graph operations for GSoC 2009 is now complete, with all
	  testsuites integrated and fixed up to handle both Tcl and C
	  implementations of struct::graph, tree, set, etc., and some bugs
	  uncovered by this work fixed as well.
	
	* graphops.tcl (::struct::graph::op::WeightedKCenter): Fixed
	* graphops.man: object leak. Added the missing release of the
	* pkgIndex.tcl: Gi(SQ) in error case (no solution). Bumped
	* graphops.test: version to 0.11.3. Tweaked comment in testsuite
	  regarding repetition.

	* graph/tests/XOpsControl: Added testsuite for weighted k-center.
	* graph/tests/ops/weightedkcenter.test: Testsuite for weighted k-center.
	  Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Several tests demonstrates how the result is influenced by
	    node/arc ordering. Extended to accept the variations.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.
	* graph/tests/ops/kcenter.test: Moved the custom matcher/verifier for
	* graph/tests/XOpsSupport: max-independent-set to shared file.
	* graph/tests/XOpsSetup: Simplified some setup procedures a bit.

	* graphops.tcl (::struct::graph::op::MaximumFlowByDinic): Fixed
	* graphops.man: object leak. Added the missing release of the
	* pkgIndex.tcl: residual graph generated in each iteration. Bumped
	  version to 0.11.2.

	* graph/tests/XOpsControl: Added testsuite for Dinic Maximum Flow.
	* graph/tests/ops/dinicmaximumflow.test: Testsuite for Dinic Maximum
	  Flow. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Added dictsort to force a canonical ordering on the
	    results.
	  - Results updated to be in the canonical ordering.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

	* graphops.man: [Bug 2800387]: Updated descriptions of Kruskal and
	  Prim with time complexity information, tweaked terminology a bit
	  (minimum _weight_ spanning tree), and noted the exceptional
	  handling of 1-vertex components (they are not shown in the
	  results).

	* graph.man: Added method 'arc nodes' to the Tcl and C
	* graph.tcl: implementations. Extended testsuite and
	* graph_tcl.tcl: documentation. Bumped package to
	* graph/methods.c: version 2.4. Bumped the tcllibc
	* graph/objcmd.c: umbrella package to version 0.3.6.
	* graph/tests/arc/nodes.test:
	* graph/tests/command.test:
	* graph/tests/Xcontrol:
	* pkgIndex.tcl:
	* ../tcllibc.tcl:

2009-09-23  Andreas Kupries  <andreask@activestate.com>

	* graphops.tcl (::struct::graph::op::MinimumDegreeSpanningTree):
	  Stop search+insertion loop after it has added the candidate
	  arc. (::struct::graph::op::MinimumDiameterSpanningTree): Fix two
	  object leaks.

	* graph/tests/XOpsControl: Added testsuite for Min D Spanning Trees.
	* graph/tests/ops/mdst.test: Testsuite for MDST.
	  Blocking Flow. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Added undirected to force a canonical ordering on the
	    results.
	  - Results updated to be in the canonical ordering.
	  - Several tests demonstrates how the result is influenced by
	    node ordering. Extended to accept the variations.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

	* graphops.tcl (::struct::graph::op::BlockingFlowByMKM): Fixed
	* graphops.man: object leak. Added the missing release of the
	* pkgIndex.tcl: LevelGraph on exceptional return (No path between
	  nodes s and t). Bumped version to 0.11.1.

	* graph/tests/XOpsControl: Added testsuite for MKM Blocking Flow.
	* graph/tests/ops/mkmblockingflow.test: Testsuite for MKM
	  Blocking Flow. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Added dictsort to force a canonical ordering on the
	    results.
	  - Results updated to be in the canonical ordering.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

2009-09-22  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/XOpsControl: Added testsuite for Dinic Blocking Flow.
	* graph/tests/ops/dinicblockingflow.test: Testsuite for Dinic
	  Blocking Flow. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Added dictsort to force a canonical ordering on the
	    results.
	  - Results updated to be in the canonical ordering.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

	* graph/tests/XOpsControl: Added testsuite for k-center.
	* graph/tests/ops/kcenter.test: Testsuite for k-center.
	  Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Several tests demonstrates how the result is influenced by
	    node ordering. Extended to accept the variations.
	  - Custom matcher/verifier for max-independent-set.
	  Note: SETUP_KCENTER_1 is not creating a complete graph,
	  violating the pre-conditions of the algorithm. This affects test
	  cases 1.3 - 1.6, it is not clear if their results are correct in
	  general.	
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.
	* graph/tests/XOpsSetup: Re-indented, some notes added, loop
	  conditions tweaked.

	* graph/tests/XOpsControl: Added testsuite for vertex cover.
	* graph/tests/ops/verticescover.test: Testsuite for vertex cover.
	  Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Several tests demonstrates how the result is influenced by
	    node ordering. Extended to accept the variations.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

2009-09-21  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/XOpsControl: Added the testsuites for metrictsp,
	  christofides and tspheuristics.
	* graph/tests/ops/metrictsp.test: Testsuite for metrictsp.
	* graph/tests/ops/christofides.test: Testsuite for christofides.
	* graph/tests/ops/tspheuristics.test: Testsuite for tspheuristics.
	  Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - Conversion to v2 syntax, and cleanup of resource handling.
	  - Updated results for different implementations, sorting.

	* graph/tests/XOpsSetup (SETUP_TSPHEURISTIC_1): Fixed growing
	  cycle list throwing of repeated execution of the same test.

	* graph/tests/Xsupport: Added helper commands for the test cases
	  of the various metric tsp commands (canonical tours, ...).

	* graph/tests/Xsetup (tmSE): Added result selection based on
	  implementation of struct::set.

	* graphops.tcl (::struct::graph::op::MetricTravellingSalesman):
	  Fixed problem in algorithm for asymmetric TSP, selecting the
	  tour in the wrong (higher-weight) direction. The Fleury
	  underneath does not care about arc direction.
	  (::struct::graph::op::Christofides): Dropped superfluous
	  variable and fixed M+T operation. The matching does not care
	  about arc direction, and we have insert anti-parallel arcs to
	  avoid any existing.
	  (::struct::graph::op::isEulerian?): Extended API to return
	  tour start. Computable from the arcs, but not easy. Better to get
	  it from the algorithm which knows by definition.
	  (::struct::graph::op::findHamiltonCycle): Get tour start from
	  isEulerian, and drop bogus computation from the tour arcs.
	  (::struct::graph::op::createTGraph): Moved graph creation after
	  error check to avoid a leak when the check fails.
	* graphops.man: Bumped version to 0.11
	* pkgIndex.tcl: (isEulerian API extension, plus bugfixes).

2009-09-17  Andreas Kupries  <andreask@activestate.com>

	* queue/m.c (qum_PEEK): Convert C99/C++ comment to C89
	  comment. Some unix compilers, like AIX are strict C89 and fail
	  on this.

2009-09-16  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/XOpsControl: Added testsuite for maxcut.
	* graph/tests/ops/maxcut.test: Testsuite for maxcut.
	  Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Indentation, line-endings
	  - test 1.4 demonstrates not only how the heuristic can run into
	    local optimum, but also how the result is influenced by node
	    ordering, critcl implementation gives optimal solution
	    instead, now accepted.
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

	* graphops.tcl: Fixed indentation, and removed trailing
	  whitespace.

	* graph/tests/XOpsControl: Added testsuite for BFS.
	* graph/tests/ops/bfs.test: Testsuite for breadth-first
	  search. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Added dictsort and lsort to force a canonical ordering on
	    results. Where sorting was not possible we provide the two
	    valid results for Tcl and Critcl implementations.
	  - Results updated to be in the canonical ordering.
	  - Indentation, line-endings
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

2009-09-15  Andreas Kupries  <andreask@activestate.com>

	* graph/tests/XOpsControl: Added new testsuites.

	* graph/tests/ops/busackergowen.test: Changes like for
	  edmondskarp.test, i.e. equivalent data leakage bugs (1.4-1.6).

	* graph/tests/ops/edmondskarp.test: Ditto, plus conversion of a
	  few tests to tcltest v2 form, to make the setup and cleanup of
	  resources more explicit, fixing data leakage between tests
	  (FF-1.5-1.9), and fixing test results of these. First actual bug
	  fixes.

	* graph/tests/ops/adjlist.test: Ditto, except this one is using a
	  custom sorting command.	

	* graph/tests/ops/floydwarshall.test: Ditto.
	* graph/tests/ops/johnsons.test: Ditto.

	* graph/tests/ops/bellmanford.test: New testsuite for bellman-ford
	  algorithm. Changes compared to GSoC result:
	  - Test names extended with 'treeimpl'.
	  - Added dictsort to force a canonical ordering on the
	    results.
	  - Results updated to be in the canonical ordering.
	  - Indentation, line-endings
	  This passes the testsuite for both tcl and critcl
	  implementations of struct::graph.

	* graphops.tcl: Starting on the integration of Michal
	* graphops.man: Antoniewski's (<antoniewsli@gmail.com>) work on
	* graphops.test: graph operations for GSoC 2009. Added all
	* graphops.man: operations, and their documentation. Version
	* graphops.tcl: bumped to 0.10. The graphops package now requires
	* graphops.test: Tcl 8.5. The testsuite requires tcltest v2.
	* pkgIndex.tcl: Extended setup commands for upcoming new tests.
	* graph/tests/XOpsSetup: The package and tests now require
	* graph/tests/ops/adjmatrix.test: struct::tree, another package
	* graph/tests/ops/bipartite.test: with acceleration via critcl.
	* graph/tests/ops/bridge.test: Testsuite updated to switch its
	* graph/tests/ops/componentof.test: implementations well. The
	* graph/tests/ops/components.test: testsuites for the new
	* graph/tests/ops/connected.test: commands will be added
	* graph/tests/ops/cutvertex.test: incrementally over the next
	* graph/tests/ops/diameter.test: days.
	* graph/tests/ops/dijkstra.test:
	* graph/tests/ops/distance.test:
	* graph/tests/ops/eccentricity.test:
	* graph/tests/ops/eulerpath.test:
	* graph/tests/ops/eulertour.test:
	* graph/tests/ops/kruskal.test:
	* graph/tests/ops/maxmatching.test:
	* graph/tests/ops/prim.test:
	* graph/tests/ops/radius.test:
	* graph/tests/ops/tarjan.test:

2009-09-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph/filter.c: Fixed bug in 'arcs -adj' implementation. Wrong
	* graph/tests/arcs.test: range check. Extended testsuite. Bumped
	* ../tcllibc.tcl: version of tcllibc containing this fix to 0.3.5.

	* graphops.tcl: Destroy internal temporary object on internal
	* graphops.man: error. Bumped version to 0.9.2.
	* pkgIndex.tcl:

	* graph/tests/ops/eulerpath.test: Converted to tcltest v2 form.

	* graph/tests/XOpsControl: Added sourcing of the support code
	  needed when the graphops testsuite is run standalone.

2009-07-10  Andreas Kupries  <andreask@activestate.com>

	* graphops.tcl (::struct::graph::op::TarjanSub):
	* graphops.tcl (::struct::graph::op::isCutVertex?):
	* graphops.tcl (::struct::graph::op::Fleury):
	* pkgIndex.tcl: Fixed [Bug 2815302]. Replaced a number of uses of
	* graphops.man: struct::set subtract' with the proper 'struct::set
	  exclude', as these places remove a single element, not a
	  set. Use of the wrong method then breaks the code if elements
	  (node/arc names) with whitespace in them is used. Bumped version
	  to 0.9.1.

2009-06-22  Andreas Kupries  <andreask@activestate.com>

	* tree_tcl.tcl (::struct::tree::_swap): Removed code which flipped
	  the attributes around. This is wrong. They stay with their
	  nodes, per the node name. Thanks to Tom Krehbiel for the report.

	* tree.testsuite : Extended with a test for method swap which
	  checks that the attributes of the nodes are handled correctly.

	* pkgIndex.tcl: Bumped to version 2.1.2.
	* tree.tcl:

2009-04-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_tree.man: Fixed typo.

2008-12-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.11.1 ========================
	* 

2008-12-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph_tcl.tcl (::struct::graph::_walk): Fixed post-order dfs
	* graph/tests/walk.test: problem [Bug 2420330] in Tcl side.
	* pkgIndex.tcl: Extended testsuite. Bumped to version 2.3.1

2008-11-19  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph1.test: Cleanup to avoid interference with the accelerators
	* graphops.test: of graph v2. Bring in the accelerators for queues
	* graph/tests/ops/adjmatrix.test: and stacks. Fixed bug in tarjan
	* graph/tests/ops/bipartite.test: exposed by the accelerator (*).
	* graph/tests/ops/bridge.test: (*) Changed order of arc traversal.
	* graph/tests/ops/componentof.test:
	* graph/tests/ops/components.test:
	* graph/tests/ops/connected.test:
	* graph/tests/ops/cutvertex.test:
	* graph/tests/ops/diameter.test:
	* graph/tests/ops/dijkstra.test:
	* graph/tests/ops/distance.test:
	* graph/tests/ops/eccentricity.test:
	* graph/tests/ops/eulerpath.test:
	* graph/tests/ops/eulertour.test:
	* graph/tests/ops/kruskal.test:
	* graph/tests/ops/maxmatching.test:
	* graph/tests/ops/prim.test:
	* graph/tests/ops/radius.test:
	* graph/tests/ops/tarjan.test:

	* graphops.tcl: Near-completed integration of graph algorithms.
	* graphops.man: Node distances, eccentricity, radius, diameter.
	* graph/tests/ops/distance.test: Bumped package version to 0.9.
	* graph/tests/ops/radius.test: Disabled the placeholders for max-
	* graph/tests/ops/diameter.test: matching, the only algorithm we
	* graph/tests/ops/eccentricity.test: are missing.
	* graph/tests/XOpsControl:
	* pkgIndex.tcl:

2008-11-18  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms. Node
	* graphops.man: distances, dijkstra's algorithm. Bumped the
	* graph/tests/ops/dijkstra.test: package version to 0.8.
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* pkgIndex.tcl:

2008-11-17  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms. Euler
	* graphops.man: paths and tours. Bumped the package version
	* graph/tests/ops/eulertour.test: to 0.7.
	* graph/tests/ops/eulerpath.test: 
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* graph/tests/XOpsSupport:
	* pkgIndex.tcl:

2008-11-14  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms. More
	* graphops.man: about connectivity. Bumped the package version
	* graph/tests/ops/connected.test: to 0.6.
	* graph/tests/ops/cutvertex.test: 
	* graph/tests/ops/bridge.test: 
	* graph/tests/XOpsControl:
	* pkgIndex.tcl:

2008-11-13  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms.
	* graphops.man: Connected components. Bumped package version
	* graph/tests/ops/components.test: to 0.5.
	* graph/tests/ops/componentof.test: 
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* graph/tests/XOpsSupport:
	* pkgIndex.tcl:

2008-11-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms.
	* graphops.man: SCCs via Tarjan. Placeholder for max matching.
	* graph/tests/ops/tarjan.test: Bumped version to 0.4.
	* graph/tests/ops/maxmatching.test:
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* graph/tests/XOpsSupport:
	* pkgIndex.tcl:

2008-11-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms.
	* graphops.man: Test for bipartite graph. Bumped version
	* graph/tests/ops/bipartite.test: to 0.3
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* graph/tests/XOpsSupport:
	* pkgIndex.tcl:

2008-11-07  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms.
	* graphops.man: Minimum spanning tree/forest as per Prim.
	* graph/tests/ops/prim.test: Bumped version to 0.2
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:
	* pkgIndex.tcl:

2008-11-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Continued integration of graph algorithms.
	* graphops.man: Minimum spanning tree/forest as per Kruskal.
	* graph/tests/ops/kruskal.test:
	* graph/tests/XOpsControl:
	* graph/tests/XOpsSetup:

2008-11-04  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graphops.tcl: Starting on the integration of Alejandro Paz's
	* graphops.man: (<vidriloco@gmail.com>) work on graph operations
	* graphops.test: for GSoC 2008. First operation: Adjacency matrix.
	* pkgIndex.tcl:
	* graph/test/XOpsControl:
	* graph/test/XOpsSetup:
	* graph/test/XOpsSupport:
	* graph/test/ops/adjmatrix.test:

2008-10-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.11 ========================
	* 

2008-10-16  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph/graph.c (dup): Fixed duplication of an empty graph, mis-
	* graph/tests/command.test: handled the re-chaining of the node-
	  list in the source. Added test for this case.

2008-10-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph/graph.c (dup): Fixed missing propagation of arc weights.
	* graph/tests/command.test: Added test for graph assignment with
	  weights.

2008-10-11  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.man: Extended graphs with the ability to define arc
	* graph.tcl: weights. Added methods to query and manipulate weight
	* graph_tcl.tcl: information. Extended the serialization format to
	* pkgIndex.tcl: handle graphs with and without arc weights.
	* graph/arc.c: Implemented in both Tcl and C. The Tcl code is
	* graph/ds.h: derived from Alejandro Paz's (<vidriloco@gmail.com>)
	* graph/methods.c: work during GSoC 2008. Extended testsuite and
	* graph/methods.h: documentation. The package now requires Tcl 8.4
	* graph/objcmd.c: for operation. Bumped the package version to 2.3.
	* graph/tests/Xcontrol:
	* graph/tests/arc/getunweighted.test: 
	* graph/tests/arc/getweight.test: 
	* graph/tests/arc/hasweight.test:
	* graph/tests/arc/setunweighted.test:
	* graph/tests/arc/setweight.test:
	* graph/tests/arc/unsetweight.test:
	* graph/tests/arc/weights.test:
	* graph/tests/command.test:
	* graph/tests/deserialize.test:
	* graph/tests/serialize.test:
	* graph/tests/Xsupport:

2008-09-09  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* disjointset.man: Added a modified form of the disjoint-set class
	* disjointset.tcl: created by  Alejandro Paz <vidriloco@gmail.com>
	* disjointset.test: for the Google Summer Of Code 2008. Version 1.0.
	* disjointset.testsuite: 
	* pkgIndex.tcl:

2008-09-03  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* prioqueue.man: Extended with a 'remove' method for the
	* prioqueue.tcl: deletion of items from queues before their
	* prioqueue.test: time comes up with 'get'. Bumped version
	* pkgIndex.tcl: to 1.4. Code originally by Alejandro Paz
	  <vidriloco@gmail.com> for GSoC 2008, with modifications by
	  myself to make the item search more efficient.

2008-09-02  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.testsuite: Updated tests based on walk error stack traces
	  to handle new differences between 8.4 and 8.5.

	* tree.testsuite.4417b84.txt: Moved the stacktraces to separate files
	* tree.testsuite.4417=84tcl.txt: for better readability of both the
	* tree.testsuite.4417a84tcl.txt: traces and the test using it.
	* tree.testsuite.4417a83critcl.txt:

2008-08-12  Michael Schlenker <mic42@users.sourceforge.net>

	* graph1.tcl: Removed reference to the cgraph download.
	* graph1.man: Its no longer available from that site,
	  and there is currently no replacement site. Newer
	  code should use graph 2 with the critcl accelerators. 

2008-07-11  Andreas Kupries  <andreask@activestate.com>

	* list.tcl (::struct::list::Ldelete): Added a 'delete' command
	* struct_list.man: for removing of elements from a list by name
	* list.test: Bumped version to 1.7.
	* pkgIndex.tcl:

2008-07-03  Andreas Kupries  <andreask@activestate.com>

	* queue/m.c: Separated qdump from queue_debug mode.
	* queue/util.h: Brought all assert macros in line with the
	* stack/util.h: definitions provided to graph (which print
	* tree/util.h: file/line information). Also activated assertions
	  throughout for regular build.

2008-07-02  Andreas Kupries  <andreask@activestate.com>

	* queue.tcl: Changed core queue code to support multiple
	* queue_tcl.tcl: implementations, and Tcl implementation. Bumped
	* queue.man: to version 1.4.1. Updated documentation to mention
	* pkgIndex.tcl: the critcl implementation, version number,
	  etc. Reworked the Tcl implementation as well for speed (split
	  buffer, indexing, avoid memcopies, K-operator).

	* queue_c.tcl: Critcl based implementation of queues.
	* queue/ds.h:
	* queue/m.c:
	* queue/m.h:
	* queue/q.c:
	* queue/q.h:

	* queue.testsuite: Reworked the testsuite to handle both Tcl and
	* queue.test:      critcl implementations.

2008-06-19  Andreas Kupries  <andreask@activestate.com>

	* stack.tcl: Changed core stack code to support multiple
	* stack_tcl.tcl: implementations, and Tcl implementation. Bumped
	* stack.man: to version 1.3.3. Updated documentation to mention
	* pkgIndex.tcl: the critcl implementation, version number, etc.

	* stack_c.tcl: Critcl based implementation of stacks.
	* stack/ds.h:
	* stack/m.c:
	* stack/m.h:
	* stack/s.c:
	* stack/s.h:

	* stack.testsuite: Reworked the testsuite to handle both Tcl and
	* stack.test:      critcl implementations.

2008-06-18  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* stack.bench: New file, added benchmarks for stack objects.
	* stack.tcl: Rewrites of various commands for speed, using K
	* pkgIndex.tcl: operator etc. Bumped to version 1.3.2.
	* stack.man:

2008-03-23  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph/tests/nodes.test: Extended with tests to capture the
	  situation of [Bug 1923685]. They properly crash without the fix
	  and pass when the fix is applied.

	* graph/util.h (ASSERT): Extended to reported the asserted expression,
	  and the file and line the assert is at.

	* graph/filter.c (filter_mode_n_in, filter_mode_n_out): Fixed bug
	  in checking for duplicate nodes. Allowed dups to remain, causing
	  parallel arcs more than the number of total nodes to trigger the
	  overrun assertion. Reported as [Bug 1923685] by Georgios Petasis
	  <petasis@users.sourceforge.net>. Thanks.

2008-03-08  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets_tcl.tcl (::struct::set::S_subtract,::struct::set::S_exclude):
	* sets.testsuite: Added an explicit check for the existence of the
	  variable so that we can report the actual name of the missing
	  variable instead of the name internally used by the
	  implementation. Modified the relevant testcases to use a
	  variable name different from the internal name to expose this
	  properly. This should fix [Bug 1680176].

	* sets/m.c (sm_ADD): Brought the behaviour of method 'add' back
	* sets.testsuite: into line with the behaviour of 'include',
	* sets.tcl: i.e. create a missing variable, in both Tcl and critcl
	* struct_set.man: implementations. Updated the relevant tests as
	* pkgIndex.tcl: well. See changelog entry 2006-01-30 as well,
	  and [SF Tcllib Bug 1414051]. Bumped version to 2.2.3.

	* sets/m.c (sm_INCLUDE): Replaced bogus TCL_LEAVE_ERR_MSG when
	* sets.testsuite: checking for variable existence, as the variable
	  is created if missing. In contrast to exclude/subtract which
	  require the variable to exist. This is likely a copy/paste
	  error. The bogus error message was returned as the result of the
	  command, not an error trace, but could be mistaken for it in
	  interactive use. This fixes [Bug 1908098] reported by Stephane
	  Jeanjean <sjeanjean@users.sourceforge.net>. Testsuite extended.

2008-03-06  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets.test: Updated tests to have error messages in line with the
	* graph/tests/Xsetup: 8.5 core.
	* graph/tests/attr/append.test:
	* graph/tests/attr/get.test:
	* graph/tests/attr/getall.test:
	* graph/tests/attr/keyexists.test:
	* graph/tests/attr/keys.test:
	* graph/tests/attr/lappend.test:
	* graph/tests/attr/set.test:
	* graph/tests/attr/unset.test:

2008-02-27  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* list.test: Updated tests to have error messages in line with the
	* list.tcl: 8.5 core. Added light comments to make separation of
	  8.4 and 8.5+ clear. This fixes the SF Tcllib Bugs [1897846]
	  and [1897848] (and their duplicates).

2008-02-14  Andreas Kupries  <andreask@activestate.com>

	* matrix.tcl: Changed uses of abbreviated '-regex' in switch
	* pkgIndex.tcl: commands to the full option, '-regexp'. Bumped
	  version to 2.0.2.

2008-01-28  Andreas Kupries  <andreask@activestate.com>

	* sets_tcl.tcl (::struct::set::Cleanup): Fixed handling of set
	* sets.testsuite: elements looking like namespace variable
	* sets.test: names. They break our hack of using the proc-local
	* sets.tcl: var hashtable. We have to use an explicit
	* pkgIndex.tcl: array. Updated the testsuite to use such
	* struct_set.man: elements. Bumped version to 2.2.2.

2008-01-28  Andreas Kupries  <andreask@activestate.com>

	* graph_c.tcl: Disabled the critcl::debug and critcl::cheaders -g
	* sets_c.tcl:  definitions.
	* tree_c.tcl: 

2007-09-19  Andreas Kupries  <andreask@activestate.com>

	* list.tcl (::struct::list::Lpermutations): Fixed use of
	  unqualified 'list' command for case of 1-element list. This
	  fixes [SF Tcllib Bug 1798337]. Thanks to Glenn Jackman
	  <glennjnn@users.sourceforge.net> for both report and fix.
	* pkgIndex.tcl: Version bumped to 1.6.2. Extended the
	* struct_list.man: testsuite with a test for this case.
	* list.test:

2007-09-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.10 ========================
	* 

2007-08-29  Andreas Kupries  <andreask@activestate.com>

	* tree.testsuite: Simplified constraint definition, we now have a
	  standard syntax (backward compat def for tcltest 1.0 in the
	  devtools/testutilities.tcl).

	* sets.testsuite: Added a test demonstrating a shimmering problem
	  in the C implementation of struct::set (handling of pure list
	  values is bad).

	* sets/s.c: Fixed the bug demonstrated by the new test, see
	* pkgIndex.tcl: above. Version of package bumped to 2.2.1. Version
	  of tcllibc bumped to 0.3.2.

2007-08-22  Andreas Kupries  <andreask@activestate.com>

	* struct_list.man: Fixed example for 'filterfor', removed the
	  bogus 'expr' layer. The command runs 'expr' itself. This fixes
	  [SF Tcllib Bug 1779424].

2007-08-03  Andreas Kupries  <andreask@activestate.com>

	* sets.test (Nothing): Updated to changes in reporting of errors
	  with alias commands in 8.5.

2007-05-16  Kevin B. Kenny  <kennykb@acm.org>

	* list.tcl (LlcsInvertMerge2): Fixed a bug where incorrect
	"unchanged" entries were generated on a merged list.
	* list.test (lcsInv-4.2,lcsInv-4.3): Corrected the test cases
	because they were expecting incorrect results from
	the above bug. [Bug 1720331]
	* pkgIndex.tcl: Advanced version number of 'struct::list' to 1.6.1
	
2007-04-12  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* tree.tcl: Renamed various commands handling accelerators. This
	  brought their names into compliance with the requirements of the
	  'TestAccel*' commands in devtools.

	* sets.tcl: Fixed use of KnownImplementations missed by last
	  change.

2007-04-11  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets.tcl: Renamed various commands handling accelerators. This
	  brought their names into compliance with the requirements of the
	  'TestAccel*' commands in devtools.

	* sets.test: Rewritten to use the 'TestAccel*' convenience
	  commands.

	* tree.test: Rewritten to use the 'TestAccel*' convenience
	  commands. Additionally moved the helper commands into a new,
	  separate file

	* tree/tests/Xsupport: New file now containing the helper commands
	  for testing struct::tree.

	* graph.test: Rewritten to make use of 'useAccel'.

	* graph.test:               The testsuite already switches various
	* graph/tests/arcs.test:    implementations of struct::graph. Added
	* graph/tests/assign.test:  the switching of struct::set
	* graph/tests/command.test: implementations.
	* graph/tests/deserialize.test:
	* graph/tests/nodes.test:
	* graph/tests/rassign.test:
	* graph/tests/serialize.test:
	* graph/tests/swap.test:
	* graph/tests/walk.test:
	* graph/tests/arc/attr.test:
	* graph/tests/arc/delete.test:
	* graph/tests/arc/exists.test:
	* graph/tests/arc/flip.test:
	* graph/tests/arc/insert.test:
	* graph/tests/arc/move-source.test:
	* graph/tests/arc/move-target.test:
	* graph/tests/arc/move.test:
	* graph/tests/arc/rename.test:
	* graph/tests/arc/source.test:
	* graph/tests/arc/target.test:
	* graph/tests/attr/append.test:
	* graph/tests/attr/get.test:
	* graph/tests/attr/getall.test:
	* graph/tests/attr/keyexists.test:
	* graph/tests/attr/keys.test:
	* graph/tests/attr/lappend.test:
	* graph/tests/attr/set.test:
	* graph/tests/attr/unset.test:
	* graph/tests/node/attr.test:
	* graph/tests/node/degree.test:
	* graph/tests/node/delete.test:
	* graph/tests/node/exists.test:
	* graph/tests/node/insert.test:
	* graph/tests/node/opposite.test:
	* graph/tests/node/rename.test:

2007-03-26  Andreas Kupries  <andreask@activestate.com>

	* struct_tree.man:  Documentation improvements as suggested by Lars
	* struct_tree1.man: Bergstrom ([Bug 1687902]).

2007-03-22  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.man:  Fixed all warnings due to use of now
	* graph1.man: deprecated. Added a section about how
	* matrix.man: to give feedback.
	* matrix1.man:
	* pool.man:
	* prioqueue.man:
	* queue.man:
	* record.man:
	* skiplist.man:
	* stack.man:
	* struct_list.man:
	* struct_set.man:
	* struct_tree.man:
	* struct_tree1.man:

2007-02-27  Andreas Kupries  <andreask@activestate.com>

	* sets/s.c (from_any): Crashing bug in the Critcl implementation
	  of 'struct::set'. Remembered the old object type X in the
	  from_any conversion function, then converted to type 'list', and
	  at the end tried to release the list using the freeintrep
	  function of type X instead of type 'list'. Fixed by moving the
	  code to remember the type after the conversion to a 'list'.

2007-02-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* graph.tcl: pragma/hint for md generator.

2007-01-22  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* sets.bench: Added more benchmarks, add/include,
	  subtract/exclude, equality.

	* sets/m.c: Rewrote sm_ADD, inlined s_add to enable us to defer
	  set duplication until the set actually changes. This also
	  ensures that the string-rep is invalidated only in cvase of a
	  true change. Ditto rewrites of sm_INCLUDE, sm_SUBTRACT, and
	  sm_EXCLUDE.

2007-01-21  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* struct_set.man: Updated documentation to mention the critcl
	  implementation, version number, etc.

	* pkgIndex.tcl: Version of sets bumped to 2.2.

	* sets.bench: New, benchmarks for set operations, incomplete.

	* sets.tcl:     Changed core sets code to support multiple
	* sets_tcl.tcl: implementations, and Tcl implementation.

	* sets_c.tcl: Critcl based implementation of sets.
	* sets/ds.h:
	* sets/m.c:
	* sets/m.h:
	* sets/s.c:
	* sets/s.h:

	* sets.testsuite: Reworked the testsuite to handle both Tcl and
	* sets.test:      critcl implementations.

2006-11-15  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	* pkgIndex.tcl: Version of graph bumped to 2.2.

	* graph.man: Updated documentation for new features, extended
	  abilities, critcl implementation, etc.

	* graph.tcl:     Changed core graph code to support multiple
	* graph_tcl.tcl: implementations, and Tcl implementation. Added
	  some more features (arc|node delete multiple nodes, insertion of
	  multiple nodes, flipping the direction of arcs), internal
	  refactoring of common argument checks, additional checks closing
	  some holes.

	* graph_c.tcl: Critcl based implementation of graph.
	* graph/arc.c:
	* graph/methods.c:
	* graph/ds.h:
	* graph/node.c:
	* graph/objcmd.h:
	* graph/attr.c:
	* graph/arcshimmer.c:
	* graph/objcmd.c:
	* graph/arc.h:
	* graph/filter.c:
	* graph/methods.h:
	* graph/util.c:
	* graph/util.h:
	* graph/node.h:
	* graph/graph.h:
	* graph/graph.c:
	* graph/nacommon.c:
	* graph/walk.c:
	* graph/walk.h:
	* graph/global.h:
	* graph/nodeshimmer.c:
	* graph/attr.h:
	* graph/global.c:
	* graph/nacommon.h:

	* graph.test: Reworked testsuite, split into about one file per
	* graph/tests/Xsetup: tested method, plus helper and control
	* graph/tests/arc/delete.test: files. Extended testsuite testing
	* graph/tests/arc/exists.test: several of the holes which were
	* graph/tests/arc/flip.test: closed and had never been tested
	* graph/tests/arc/insert.test: before.
	* graph/tests/arc/move.test:
	* graph/tests/arc/move-source.test:
	* graph/tests/arc/move-target.test:
	* graph/tests/arc/rename.test:
	* graph/tests/arc/source.test:
	* graph/tests/arc/target.test:
	* graph/tests/arc/attr.test:
	* graph/tests/attr/get.test:
	* graph/tests/attr/getall.test:
	* graph/tests/attr/keyexists.test:
	* graph/tests/attr/keys.test:
	* graph/tests/attr/lappend.test:
	* graph/tests/attr/set.test:
	* graph/tests/attr/unset.test:
	* graph/tests/attr/append.test:
	* graph/tests/attr/Xsetup:
	* graph/tests/node/degree.test:
	* graph/tests/node/delete.test:
	* graph/tests/node/exists.test:
	* graph/tests/node/insert.test:
	* graph/tests/node/rename.test:
	* graph/tests/node/opposite.test:
	* graph/tests/node/attr.test:
	* graph/tests/walk.test:
	* graph/tests/Xsupport:
	* graph/tests/Xcontrol:
	* graph/tests/arcs.test:
	* graph/tests/nodes.test:
	* graph/tests/deserialize.test:
	* graph/tests/assign.test:
	* graph/tests/serialize.test:
	* graph/tests/command.test:
	* graph/tests/rassign.test:
	* graph/tests/swap.test:

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  <andreas_kupries@users.sourceforge.net>

	* 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.
