Changelog of @hackage/cpsa 2.0.0

2010-03-04 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 2.0.0, the first release
for the public.

2010-03-01 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/SExpr.hs (load): Load now returns one S-expression
per call.

2010-02-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Loader.hs (loadPosBaseTerm): Added a missing check
that ensures a non-originating term at given length is an atom.

* doc/Make.hs (cpsa): Made *.sch the extension for problems
that use Diffie-Hellman.

2010-02-15 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.5.

* src/CPSA/Lib/Loader.hs:  Added better error messages for roles
and preskeletons that are not well formed.

2010-02-13 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs:  Enforce a canonical form for terms
so that term equality is just structural equality.

2010-02-08 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (testNode): Changed order in which
critical message are picked to look at encryption tests before
nonce tests.

2010-02-05 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.4.

2010-02-04 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (origCheck): For pruning, added a check
that insures that origination assumptions are honored by the
homomorphisms associated with pruning.

2010-01-29 John D. Ramsdell ramsdell@mitre.org

* doc/cpsauser.html (Visualization): Added a comment that notes
that cpsagraph draws dashed lines between nodes with terms that
are equivalent, but not syntactically identical.

* src/CPSA/Lib/Strand.hs (Preskel): Preskeletons retain a comment
that is given in the input.

2010-01-21 John D. Ramsdell ramsdell@mitre.org

* doc/cpsa.mk (%.sch): Added a rule that runs CPSA with the
Diffie-Hellman algebra for *.sch files.

* tst/completeness-test.scm: Added new example

2010-01-07 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (copresentVertices): Fixed a bug, and now 
contractions with ordering codes works, when
Cohort.useContractionsWithOrdering is True.

2010-01-06 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.3.

2009-12-21 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (mgus): Enabled mgu filtering on
contractions and regular augmentation.

2009-12-20 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (moreGeneral): Original implementation
failed to consider variables in the range of the more general
substitution.

2009-12-17 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Graph/Preskeleton.hs (addEdge): In a skeleton diagram,
an edge between nodes that do not agree on their message is
displayed with a dashed line.

2009-11-16 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.2.

2009-11-10 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (precedesCheck): Added the requirement to
pruning that ordering relations associated with the more
general (pruned) strand are implied by the less general strand.

2009-10-31 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Protocol.hs (Role): Added support for delaying the
inheritance of a role non-origination assumption by adding a
length specification to role non-origination declarations.

2009-10-26 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.1.

2009-10-24 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (specialization): Generalization no
longer uses pruning.

2009-10-24 John D. Ramsdell ramsdell@mitre.org

* license.txt: Changed license to BSD.

2009-10-15 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.5.0.

2009-10-14 John D. Ramsdell ramsdell@mitre.org

* src/preskel.sh: Added a script to change defpreskeleton to
defskeleton. 

* src/CPSA/Lib/Loader.hs (loadSExpr): Changed defpreskeleton
keyword to defskeleton.

2009-10-10 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Extra-Source-Files): Added files left out of a
distribution so that the documentation compiles.

* {doc,tst}/README: Added a doc and tst read me

2009-10-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (checkOrigs): Isomorphism orig check now
uses matching.  Isomorphism checking now works in diffie-hellman.

2009-10-01 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs (encryptions): Encryptions that occur in
other encryption are now required to be later in the list.

* cpsa.cabal (Version): Tagged as version 1.4.9.

2009-09-30 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (roleOrigCheck): Role origination check
is now omitted when the inheriting strand is too short to inherit
a unique origination assumption.

2009-09-22 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (useMguFilter): Turned off all mgu
filtering for contractions and augmentations.

* src/CPSA/Lib/Algebra.hs: Changed signature for unification and
matching so as to pass through a variable generator for
Diffie-Hellman.  Threaded the variable generator throughout the
library as needed.

* src/CPSA/Diffie-Hellman/Algebra.hs:  Added a module for
analyzing protocols that use Diffie-Hellman.  Its unifier and
matcher make use of fresh variable generation.

2009-09-16 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (mgus): Added a filter that removes
non-most general unifiers from a list of contractions after the
list has been filtered to ensure each member solves the test.  For
each role considered during augmentation, added a filter that
removes non-most general unifiers from the list of augmentations
after the list has been filtered to ensure each member solves the
test.

2009-08-28 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (testDestroyingContractions): Added a
filter that removes non-most general unifiers from the generated
list of potential contractions.

2009-08-18 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Displayer.hs (displayOpTerm, displayOpTerms): Terms
in the operation field may contain variables not in the skeleton.
Two functions were added for printing terms is the operation
field.  These functions extend the display context as needed.

2009-08-05 John D. Ramsdell ramsdell@gootoo

* cpsa.cabal (Version): Tagged as version 1.4.8.

* tst/{encsig.scm,sigenc.scm}: Added tests for labeled named akey
operations.

2009-08-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs:  Added labeled named akey operations 
(pubk STRING ID) and (privk STRING ID).

2009-08-02 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs (lte):  Added more general substitution
predicate to the algebra interface.

2009-07-24 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.7.

* src/CPSA/Lib/Strand.hs (permutations): Reversed the order in
which strands are matched, and found a big performance
improvement. 

* src/CPSA/Lib/Loader.hs (loadRole): Unused variables in a role
are now silently dropped instead of causing an error message.

2009-07-21 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (permutations): Intertwined the
computation of permutations with the substitutions that match
traces.

2009-07-11 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.6.

2009-07-08 John D. Ramsdell ramsdell@mitre.org

* doc/cpsaprimer.tex (Section Advice): Added a description of how
to use CPSA for protocol design and made other improvements.

2009-07-07 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (maybeAug): Use a role's trace as a
template instead of generating a fresh instance for that purpose.

2009-07-01 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Graph/LaTeXView.hs (latexView): 

2009-06-23 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (solve): The top-level search loop is now
implemented in the IO monad using tail recursive functions so as to
ensure data is released when it should.

2009-06-21 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (solve): Added no isomorphism checking
mode (--noisochk).  In noisochk mode, isomorphism checks are
avoided by not identifying duplicate skeletons and by not
generalizing realized skeletons.

* src/CPSA/Lib/Search.hs (Params): Collected runtime parameters
into a record.

* src/CPSA/Lib/Search.hs (dump): Dump no longer generalizes
realized skeletons.  It just dumps them quickly.

2009-06-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (generalize): Perform variable separation
last as it could take a long time.

2009-06-17 John D. Ramsdell ramsdell@mitre.org

* doc/cpsaprimer.tex: Updated the Needham-Schroeder example, added
the collapsing operation, and fix other minor problems.

2009-06-14 John D. Ramsdell ramsdell@mitre.org

* doc/cpsadesign.tex: This document was rewritten.  It now assumes
its reader have already read the CPSA specification
(doc/cpsaspec.tex).  As a result, it focuses on implementation
issues, and leaves correctness issues to the specification.

2009-06-11 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (instRnon,instRunique): Filter
origination assumptions using the terms in the instance's trace.

* src/CPSA/Lib/Strand.hs (separateVariable): Don't memoize subsets
computation.  It causes memory problems when a large permutation
is used infrequently.

2009-06-10 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.5.

2009-05-29 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (isomorphic): Don't memoize
permutations--can cause excessive use of memory.

2009-05-28 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Entry.hs: Code common to several programs has been
moved into the Entry module and shared.

2009-05-27 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/{Search.hs,Expand.hs}: CPSA now expands macros
rather than using a preprocessor for the task.  The cpsapp program
now just pretty prints its input.

* src/CPSA/Pretty/Main.hs: The source for the cpsapp program has
moved into another directory as it no longer macro expands its
input.

* doc/cpsa.mk: Makefile no longer has preprocessor support.

* doc/cpsaoverview.tex: Add a short overview of CPSA.

* src/CPSA/Annotations/Formulas.hs (keywords): "t" and "f" are no
longer keywords in formulas.  Use (and) for truth and (or) for
falsehood.

2009-05-22 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Macros/Main.hs (prettyPrint): Add -p option so that
cpsapp pretty prints without macro expansion.

* doc/cpsa.mk: Makefile now save preprocessor output.

2009-05-12 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.4.

* cpsa.cabal (Flag par): Changed the default for the par flag to
true so that CPSA is compiled with multiprocessor support by
default.

2009-05-11 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/SExpr.hs (Tokens): Added strictness annotations
that allows the reading of much larger input files and improves
performance.

2009-05-10 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (collapse): Added the collapse operation
which applies to a shape.  It attempts to unify pairs of strands
and searches for shapes starting from the results.

* src/CPSA/Shapes/Shapes.hs (shapes): Reduced memory requirements
by use of shape notes and added support for output in which a
shape is a descendent of a shape.

2009-05-09 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (commentPreskel): Added a shape note to
be used by the cpsashapes program.

2009-05-07 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (hull, enrich, prune): With the
correction of the pruning algorithm, the preskeleton reduction
rules are now applied in the order of hull, enrich, and then
prune.

2009-05-05 John D. Ramsdell ramsdell@mitre.org

* doc/cpsaspec.tex: Added the sources to the CPSA document that
specifies CPSA as a reduction system.

2009-05-04 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (pruneStrands): The pruning operation
now uses a substitution that is idempotent for strands other than
the pruned strand.

2009-04-29 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.3.

* src/CPSA/Lib/Cohort.hs (specialization): The homomorphism check
is applied to the preskeleton because it matches the strand
mapping.  This fixes a bug that reject some valid generalizations.

2009-04-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs (Subst): A substitution is now required
to be ordered.

* src/CPSA/Basic/Algebra.hs (unifyChase): The exported version of
a substitution no longer requires chasing to find the canonical
representative of the equivalence class of variables determined to
be equal.  This means there is a canonical representation of an
external version of a substitution that is ordered.

* src/CPSA/Basic/Algebra.hs (substitute): Corrected a bug in
substitution associated with variables of sort mesg.  The
correction effects tst/dy.scm only.

2009-04-18 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (IdMap): Use Data.Map Id Term for
substitutions instead of association lists. 

* src/CPSA/Basic/Algebra.hs (loadVar): Removed sort "term" as a
synonym for "mesg".

2009-04-14 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (compose):  Corrected a bug in the
code that removes the trivial bindings from s2 to form s4.  The
fix changes the output for tst/dy.scm.

2009-03-30 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.2.

2009-03-27 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (parMap): Added support for SMP
parallelism.  To enable, configure with -fpar.

2009-03-22 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Printer.hs: Added a CPSA specific pretty printer
and made it so that the roles in protocols are laid out using the
group layout.

2009-03-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Pretty.hs (grp): Added support for the group layout
and used it for the top-level lists.

2009-03-01 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (unifyTerm): For contraction, the
unifyOnPaths function does not check to see if its result has the
desired properties and it turns out that sometimes it doesn't.
Now unifyTerm repeats its operations until the desired properties
hold.

* src/CPSA/Lib/Cohort.hs (unifyPast): For augmentation, the
original unifyPast failed to each to see if the final result has
the desired properties, and it turns out that sometimes it
doesn't.  Now unifyPast repeats its operations until the desired
properties hold.

2009-02-23 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Loader.hs (loadInsts): Check for preskeletons
with no strands.

2009-02-21 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Parameters/Main.hs,Flow.hs: Added a data flow analysis
of roles.

2009-02-16 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.1.

* doc/*: Update document to reflect changes.

2009-02-10 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Macros/*.hs: Added the macro preprocessor cpsapp.

2009-02-08 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Annotations/Annotations.hs (loadFormulas): Allow base
terms as principals so as to allow keys as principals.

2009-01-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (changeLocations): Changed variable
separation so that so that two candidates are generated for a
location configuration, one that maps the changes to uniques, and
the other does not.  This fixes a generalization bug.

2009-01-31 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (solved): The cohort is now filtered so
that every member is solved.

2009-01-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (changeLocations): When separating a
uniquely originating base term, either the term or its clone is
uniquely originating.

2008-12-28 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (Symbol): Removed tag as a sort, and
made tags constants of sort mesg.

2008-12-24 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (matchVarRenaming): Use sets to
improve injective test.

2008-12-09 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.4.0.

2008-12-08 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (nextState): Added the --dfs command line
option to allow the selection of depth first search.

* src/CPSA/Graph/SVG.hs (kbutton): Duplicate nodes are now
rendered in italic so as to make it easier to distinguish them
from tree nodes.

* src/CPSA/*/{Main.hs,Search.hs}: Added default option values to
command line help message.

2008-12-03 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs: Allowed variable declaration forms to
declare more than one variable of a given sort.

* src/CPSA/Basic/Algebra.hs: Added the sort data, a second
sort similar to sort text.  The second sort can be used to
partition nonce-like data from ordinary text-like data.

* src/CPSA/Basic/Algebra.hs: Changed the symbol used for the top
sort from "term" to "mesg".

* src/CPSA/Lib/SExpr.hs (isStr): The characters that make up a
string are the ASCII printing characters omitting double quote and
backslash.

2008-12-02 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (nextState): Switched back to
breadth-first-search and removed support for parallelism.
Breadth-first-search makes it more likely shapes are printed in
ill-fated runs.

* src/CPSA/Graph/Main.hs (interp): Changed the default output
format to expanded format.

2008-12-01 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.3.2.

2008-11-30 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (roleOrigCheck): Added new well-formed
preskeleton check.  Every uniquely originating role term mapped by
an instance must be mapped to a term that originates on the
instance's strand.

2008-11-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (nextState): Switched to
depth-first-search by adding freshly generated skeletons to the
front of the to do list.

* src/CPSA/Lib/Strand.hs (isomorphic): Added same number of
variables in isomorphism check to speed it up.

* src/CPSA/Lib/Algebra.hs: (matchVarRenaming) The special purpose
renaming detector was eliminated in favor of using matching and
predicate that decides if a match is one-to-one and
variable-to-variable.

2008-11-16 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (deleteNode): Use the transitive closure
of the communication ordering before deleting a node.  This change
fixes a minimization bug.

2008-11-14 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.3.1.

* src/CPSA/Lib/Cohort.hs (addListeners):  Listeners are now added
only for the decryption keys of the top most encryptions in the
escape set.  This fixes a bug caused by adding listeners for 
decryption keys of internal encryptions in the escape set.

* src/CPSA/Lib/Algebra.hs (decryptionKey):  Changed the name from
keysUsedBy to reflect the fact only the decryption key from the
top most encryption is returned.

* src/CPSA/Lib/Algebra.hs (protectors): Changed the name from
decrypts to better reflect the purpose of the function.

2008-11-10 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Annotations/Annotations.hs (obligations): The alist key
theorems was replaced with obligations as it lists the formulas
one is obligated to show are theorems to show the protocol is
sound.

2008-11-07 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.3.0.

* doc/cpsauser.html:  Added cpsaannotations documentation.

2008-11-02 John D. Ramsdell ramsdell@mitre.org

* doc/cpsadesign.tex: Added a complete draft of the algorithm part
of the design document.

2008-10-27 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (deleteNode): When deleting a strand,
this function used to apply the inverse of the correct permutation
to the prob field, but now applies the correct permutation.

2008-10-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Graph/Main.hs (options): Add --compact option to select
the use of the compact output format.

2008-10-15 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (targetTerms): Added term extraction from
the escape set for use as targets for binding with the carried
terms in an outbound when looking for a transforming node.  This
change allows CPSA to find the flaw in the Dolev-Yao Example 1.3
test case.

2008-10-14 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (augmentations): Changed the augmentation
algorithm to use foldCarriedTerms.

* src/cpsacgi.py: Added expanded graph output to the CGI script.
Added support for annotations.

2008-10-13 John D. Ramsdell ramsdell@mitre.org

* doc/cpsaprimer.tex: The CPSA Tutorial was renamed to the CPSA
Primer.

2008-10-08 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (forgetAssumption): Fix a bug that allows
assumption forgetting to work again.

2008-10-04 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Algebra.hs (loadEnc): When enc has more that two
terms, a concatenation is added to all but the last term.

* src/CPSA/Lib/Strand.hs (tryPerm): An isomorphism testing bug was
fixed.  The permutation map was applied to the wrong ordering.

2008-10-03 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.2.3.

* src/CPSA/Graph/ExpandedView.hs (header): The title generated for
the expanded view now includes the name of the first protocol to
be graphed.

* src/CPSA/Lib/Search.hs (search): The comment generated for
non-default strand bounded or step count limited runs contained
an illegal character that has been removed.

* src/CPSA/Basic/Algebra.hs (displaySubst): This function displays
substitutions without requiring that the sort of every variable be
known.  The function that infers enough sort information to
perform the display was correct, thus fixing a reported bug.

2008-09-30 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs (Context): Changed the interface to
contexts to allow them to be extended.  Also, eliminated
displayEnv from the Context type class.  It can be written using
other functions in the interface.

2008-09-26 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Cohort.hs (transformingNode): The fix on the 22th
wasn't right, it unified on all outgoing terms.  The function now
unifies an outgoing term only when it is a transforming node.

2008-09-24 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/*/*.hs:  Loading works with all monads.  With this
change, there is no longer a need for using the flexible instances
language extension.

2008-09-23 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.2.2.

2008-09-22 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Cabal-Version): Updated to use Cabal 1.2 section
syntax.

* src/CPSA/Lib/Cohort.hs (transformingNode): Changed the
augmentation algorithm so that it continues looking for more
transforming nodes farther down a trace after it finds one
transforming node.

* src/CPSA/Lib/Search.hs (par): Added HAVE_PAR preprocessor symbol
which should be defined when Control.Parallel is available.

* src/CPSA/*/*.hs:  A major code clean up was completed.

2008-09-17 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (Gist): Created a data structure designed
to support only skeleton isomorphism checks, thus improving the
performance and memory requirements associated with the check.

2008-09-15 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Annotations/*.hs: Added the cpsaannotations program
that propagates annotations on protocols to annotations on
realized skeletons.

2008-09-06 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Main.hs (main): Algebras export a name and the
origin used to generate fresh variables.

2008-08-29 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (weakenOrderings): Corrected a bug by
adding the strand succession edges before taking the transitive
closure.

2008-08-25 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.2.1.

2008-08-23 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (weakenOrderings): Changed the weakening
algorithm so as to use the transitive closure.  The result is all
possible weakenings are considered, and a reported bug was fixed.

2008-08-19 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Graph/ExpandedView.hs (kdrawer): Added the definition
of the marker for arrow heads so that arrow heads now appear in
preskeleton drawings.

2008-08-18 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.2.0.

* src/CPSA/Lib/Utilities.hs (permutations): Used permutations from
Haskell 1.3 as a model, and ensured the identity permutation is
the first one in the result.

* doc/cpsatutorial.tex, doc/cpsauser.html: Changed the
introductions to note that the search for shapes in the current
implementation is known to be not complete.  See tst/dy.scm.

2008-08-11 John D. Ramsdell ramsdell@mitre.org

* tst/Makefile: Changed the file extensions to be consistent with
the ones used in doc/cpsa.mk. 

* src/CPSA/Basic/Loader.hs: Added tags as non-atomic terms, and
removed tagged concatenation.

* src/CPSA/Graph/ExpandedView.hs: Added support for the expanded
view option (-x) in cpsagraph.

2008-08-04 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal: Added support for local installation.

* doc/cpsa.mk: Added GNU Make rules for inclusion.

* src/CPSA/Lib/Search.hs: Reorganized search loop so that
S-expression printing is done outside the search code.

* src/CPSA/Lib/Search.hs: Modified the abort dump routine so that
it minimizes when it is asked to print a realized skeleton.

2008-07-31 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/*/Loader.hs: Ignore top-level S-expression of the form
(comment S-EXP*) rather than signal an error so as to allow file
level comments as S-expressions.

* src/CPSA/*/*: Renamed cpsabasic to cpsa, as that program can now
provide support for more than one algebra.

2008-07-28 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs: Added foldTerms to interface. It folds
a function through a term applying it to each term that occurs in
the term.

2008-07-26 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Algebra.hs: Added carriedPlaces and ancestors to
the interface and moved existsOnAllPathsToTarget and
foldOnAllPathsToTarget to CPSA.Lib.Cohort as they no longer need
to be implemented by each algebra.

2008-07-25 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/*/*.hs: Reorganized the algebra interface so that as
algebra exports an algebra specific protocol loader so as to allow
CPSA to handle more than one algebra at a time.  Algebras are now
linked into the program in CPSA.Lib.Main.

2008-07-24 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs: Added the --bound option to limit the
number of strands in a skeleton.

2008-07-15 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (validateSubst): Changed the result of a
failure to find a uniquely-originating atom to False rather than
an signaling an error.  The addition of unique origination
assumption forgetting makes this case no longer an error.

2008-06-16 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Basic/Main.hs (compose): Use algorithm from Handbook of
Automated Reasoning, remembering to delete identity bindings.

2008-06-05 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as version 1.1.0.

* doc/cpsadesign.tex: Added document status and other small
improvements in preparation for release.

2008-05-27 John D. Ramsdell ramsdell@mitre.org

* doc/strands.mp: Placed strand macros in a separate file.

2008-05-23 John D. Ramsdell ramsdell@mitre.org

* src/httpd_allow_execmem.te: Added this SELinux refpolicy module
so as to allow Haskell to run as a CGI script.

2008-05-22 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Displayer.hs (displayOperation): Changed the
wording for the operation used to derive a skeleton.

2008-05-19 John D. Ramsdell ramsdell@mitre.org

* src/cpsa.{sh,py}: CGI scripts modified to work with SELinux.

2008-05-13 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Shapes/Main.hs: Added output margin option.

* src/CPSA/Lib/Strand.hs (Method): Added a parameter to each
minimization method.

2008-05-04 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Strand.hs (forgetAssumption): Added the
origination assumption forgetting minimization operation.

2008-05-04 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Search.hs (options): Added output margin option.

2008-04-30 Joshua D. Guttman guttman@mitre.org

* src/CPSA/Basic/Main.hs: Re-enabled indeterminates 

2008-02-27 John D. Ramsdell ramsdell@mitre.org

* src/CPSA/Lib/Protocol.hs: Add a comment field in protocols and
roles.

2008-02-20 John D. Ramsdell ramsdell@mitre.org

* cpsa.cabal (Version): Tagged as 1.0.0, the initial release.