2004-02-20 Gustaf.Neumann@wu-wien.ac.at, Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * release of distribution XOTcl 1.2.0

2004-02-17 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
	* fixed a Tcl_Obj ref count free that was called too early.
	* fixed support for Visual CC debugger
	* fixed Win version info
	
2004-02-16 Gustaf.Neumann@wu-wien.ac.at
	* fixed a reference to a structure of a destoyed object

2004-02-16 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
	* added self class and self proc context to GuardCall
	* removed guardedScope and info guardedlevel completely from the code 
	  -> use parameters instead (see tutorial)
	* rewritten the tutorial text for mixin/filter guards completely
	* added new files to Win makefile.vc
	
2004-02-14 Gustaf.Neumann@wu-wien.ac.at
        * experimental new command "self guardedlevel" as replacement 
          for getGuardedScope
        * added documentation for self callinglevel, self activelevel and
          the methods upvar and uplevel
        * used a bold font for predefined Tcl and XOTcl words in the HTML
          version of the tutorial

2004-02-13 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c more code cleanup:
          - some minor performance improvement
          - used the same idiom for iterating over a class hierarchy consistently
          - simplified the usage of ComputeOrder() and let the optimizer do more work

2003-02-04 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
	* xotcl: removed MixinRemoveFromMixinStack, MixinRemoveFromCmdPtr,
	  MixinRemoveOnObjFromCmdPtr, FilterRemoveFromFilterStack,
	  FilterRemoveFromCmdPtr, FilterRemoveOnObjFromCmdPtr ... and
	  replaced with simple forward stepping in cmd list.
	* made the mem count work with multi, single-threaded interpreters
	
2003-02-03 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
	* testx: tests for CmdListReplaceCmd, MixinRemoveFromMixinStack,
	  MixinRemoveFromCmdPtr, MixinRemoveOnObjFromCmdPtr, 
	  XOTclOGetGuardedScopeMethod, XOTcl_InterpObjCmd, XOTclOVwaitMethod,
	* xotcl: removed XOTclAssertionRename, simplified XOTcl_RenameObjCmd
        * corrected mistakes in tutorial code for filterguards.

2004-01-31 Gustaf.Neumann@wu-wien.ac.at
        * performed coverage analysis of regression test
        * changed unsuccessful branches into asserts
        * extended testx.xotcl for better coverage

2004-01-28 Gustaf.Neumann@wu-wien.ac.at
        * Streamlined code; removed mixinChainOn from mixinStack and
          filterChainOn from filterStack and use callstack 
          frameTypes instead.
        * some performance improvements

2004-01-27 Gustaf.Neumann@wu-wien.ac.at
        * implemented uplevel method
          (uses [self callinglevel] when no level specified)
        * fixed a bug in next, when methods on the same object are called
          from within a mixin class and filters are defined
        * some performance improvements

2004-01-19 Gustaf.Neumann@wu-wien.ac.at
        * added more test cases, 
        * upvar method fully functional 
        * simplified CallFrame management on XOTcl stack 
          (wish, CallFrame had ClientData !!!)
        * Reduced size of XOTclCallStackContent
        * modularized xotcl more (new file xotclShadow.c; all shadowing
          of Tcl commands and access of gobal tcl obj commands is treated there)
        * included a fix from Zoran for thread exit handlers.

2004-01-16 Gustaf.Neumann@wu-wien.ac.at
        * defined upvar method (uses [self callinglevel] when no level specified)
        * simplified stringIncrement method and added a couple of assert().

2004-01-15 Gustaf.Neumann@wu-wien.ac.at
        * allow volatile to be called from toplevel
        * decrementing refcount of global objects as needed 
          (some had a high increment)

2004-01-14 Gustaf.Neumann@wu-wien.ac.at
        * method 'new' now uses StringIncr, which replaces the name
          generation based on numbers by a name generation based on strings.
          The strings are constructed by small and capital letters plus digits
          and correspond to a number of a number system with the basis 
          of 26+26+10=62. These strings can grow up to memory size.
          XOTcl can run as a server practically infinitely long generating
          objects with 'new'.
          
        * new package xotcl::upvar-compat
          This package provides backward compatibility with
          earlier versions of xotcl that redefined upvar/uplevel
          such that these commands ignore inactive filter and mixin 
          frames (upvar behaves the same whether or not a filter is 
          installed). Newer scripts should use 
              upvar/uplevel [self callinglevel] var/command
          instead. This package can be used via

              package require xotcl::upvar-compat

        * moved resetting of shadowed tcl commands after the deletion
          of object (as suggested by Zoran)

2004-01-11 Gustaf.Neumann@wu-wien.ac.at
        * all occurances of uplevel/upvar equipped with [self callinglevel]
          such that library works with standard uplevel/upvar
        * faster version of new method (more than 20% faster, using c-variable, 
          faster long to ascii conversion)
        * objinst (of oo-bench) about 17% faster

2004-01-10 Gustaf.Neumann@wu-wien.ac.at
        * polished macros XOTcl_FrameDecls, XOTcl_PushFrame, XOTcl_PopFrame
          (2 versions, slower version with less dependencies on tclInt.h)
        * removed mixinCalls and filterCalls from interpreter state.
        * removed unneeded macros

2004-01-08 Gustaf.Neumann@wu-wien.ac.at
        * fixed bug on exit, when no threads are enabled 
          (different cleanup strategy in threads)
        * fixed crash on deleted Tcl_Cmd, when xotcl debugging output
          is turned on
        * some more code cleanup

2004-01-07 Gustaf.Neumann@wu-wien.ac.at
        * removed varFramePtr from xotcl callstack
        * removed unneeded variables from runtime state
        * resetting of csc->callsNext after a next call
        * added "methods" to info info

2004-01-06 Gustaf.Neumann@wu-wien.ac.at
        * cutting of callframes removed completely
        * 2 new subcommands for self:
          - self callinglevel: returns the tcl stack level to address
            the invocation of the actual method
          - self activelevel: returns the topmost active stack entry from the
            xotcl stack
          Both commands return the absolute level number (syntax #n) if called
          from an xotcl method or 1 if called from a tcl proc. These subcommands
          are designed to be used in the form of "upvar [self callinglevel] a b"
        * Replaced C implementation of uplevel and upvar (with callstack 
          manipulation) by a simple Tcl proc that uses [self callinglevel]
          as default level (if is was not called with an explicit level).
        * Extended test suite
        * Changed all variables of type "Interp *" to "Tcl_Interp *"
          and defined macros Tcl_Interp_XXXX to access component XXXX
        * Changed all variables of type "CallFrame *" to "Tcl_CallFrame *"
          and defined macros Tcl_CallFrame_XXXX to access component XXXX

2004-01-04 Gustaf.Neumann@wu-wien.ac.at
        * callstack manipulation reduced significantly
        * speedup on xoRDF.test about 7%
        * self callingobject/callingclass/.... refers always to
          last invocation (ignoring next-chain)
        * consequence: mixins and filters are transparent on the callstack
        * possible extension "self previous ?n?" similar to "self next"
          to obtain information about next chain
        * possible extension "self level ?n?" similar to "info level ?n?"
          to obtain information about call stack

2004-01-02 Gustaf.Neumann@wu-wien.ac.at
        * Changed all variables of type "Namespace *" to "Tcl_Namespace *"
          and defined macros Tcl_Namespace_XXXX to access component XXXX
        * generalized invocation on callProcCheck and 
          handling of calldata in new function DoCallProcCheck
        * overall code cleanup
        * extended test suite with tclmd and insttclcmd

2004-01-01 Gustaf.Neumann@wu-wien.ac.at
        * fixed loop on invocation of methods registered by 
          the tclcmd method
        * allowed to register fully qualified commands via
          tclcmd or insttclcmd
        * made insttclcmd to work from mixin or instmixclasses
        * renamed "next" method to "__next"
        * restored old behavior of defaultmethod

2003-12-31 Gustaf.Neumann@wu-wien.ac.at
        * Changed all variables of type "Command *" to "Tcl_Command"
          and defined macros Tcl_Command_XXXX to access component XXXX
        * new predefined method self: [<object> self] returns fully
          qualified name of object
        * potential incompatibility:
          calling an object without name does not return fully
          qualified name, use "self" method (see above) instead.
          To keep backward compatibility, define
             Object instproc defaultmethod {} {return [my self]}
        * New method "<obj> next" can be used to invoke next 
          on the last recent invocation of a method on <obj>.
          <obj> must be on the callstack, otherwise an error message
          is generated
        * The new defaultmethod calls next on parent object to
          prohibit shadowing of methods through sub-objects
          
2003-12-28 Gustaf.Neumann@wu-wien.ac.at
        * new functions: CallStackUseActiveFrames()/CallStackRestoreSavedFrames()
          to to avoid walking through and modifying the whole stack 
          when locating an active frame to set variables
          (using in -volatile, instvar, info defaults)
          callstackcutframes still used in info level, uplevel, upvar,
          info callingproc, callingclass, callingobject

2003-12-25 Gustaf.Neumann@wu-wien.ac.at
        * update of various library functions (such as Httpd) to 
          use sub-objects as methods (avoids calls of [self]::objname)

2003-12-19 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: allow to call sub-objects as methods via "my"

2003-12-16 Gustaf.Neumann@wu-wien.ac.at
        * added logdir as parameter for Place (HttpPlace)
        * fixed handling of content-length == 0 in Httpd.xotcl
          to avoid Problem with microsoft explorer's WebDav queries

2003-11-13 Gustaf.Neumann@wu-wien.ac.at, Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * release of distribution XOTcl 1.1.1

2003-12-13 Gustaf.Neumann@wu-wien.ac.at
        * Removed dependency that certain variable references in 
          tclConfig.sh (such as TCL_SHARED_LIB_SUFFIX='${VERSION}${DBGX}.so');
          There was a problem on freebsd systems that use hardcoded "84" 
          instead of version in this definition, which leads to a problem
          when the SHARED_LIB_SUFFIX is used with different VERSIONs
          (such as in XOTcl). We set now the suffixes as follows

           eval "SHARED_LIB_SUFFIX=${VERSION}${TCL_DBGX}${TCL_SHLIB_SUFFIX}"
           eval "UNSHARED_LIB_SUFFIX=${VERSION}${TCL_DBGX}.a"

          and pass it through xtoclConfig.sh to the c based c-components
          (sdbm, gdbm, expat)

2003-12-08 Gustaf.Neumann@wu-wien.ac.at
        * Some cleanup in tclexpat.c to make it compile on freebsd
        * configure: made --with_gdbm configurable such that
          include path and library path can be configured
        * Httpd.xotcl: added simple redirects, can be used like e.g.
            Httpd h2 -port 9086 -root /tmp \
               -redirect {^(mailman|pipermail|cgi-bin) 
                           http://alice.wu-wien.ac.at:80}

2003-12-07 Gustaf.Neumann@wu-wien.ac.at
        * incorporated more fixes for build system suggested by Daniel Steffen
        * changed version number to 1.1.1
        * further cleanup in Makefiles, reduced redundancy in distro by using
          symbolic links
        * used everywhere for SHLIB_LD_LIBS XOTCL_BUILD_STUB_LIB_SPEC instead
          of XOTCL_STUB_LIB_SPEC

2003-12-06 Gustaf.Neumann@wu-wien.ac.at
        * httpd.xotcl: fixed return format in HTTP reply header parameters 
          Allow: and Public: for  HTTP OPTIONS method
        * library/store/XOTclGdbm/: fixed initialization of 
          xotcl stubs, usage of ck{free,alloc} vs. {free,malloc}.
        * library/store/XOTclSdbm/: fixed handling of O_SYNC on
          system that do not have it
        * Configure can run now as well from outside of xotcl sources;
          One can use now for example the following commands to compile and
          install XOTcl
 
            % mkdir -p /tmp/xotcl/unix
            % cd /tmp/xotcl/unix
            % ~/xotcl-1.1.1/unix/configure --with-all
            % make
            % make test
            % make install DESTDIR=/tmp

2003-12-05 Gustaf.Neumann@wu-wien.ac.at
        * incoporated changes as suggested by Daniel Steffen
          - using consequently DESTDIR for all directory references
          - made procs in predefined.xotcl independent 
            from namespace import ::xotcl::*
          - make references relative to $(srcdir) in all Makefile.in

2003-12-02 Gustaf.Neumann@wu-wien.ac.at
        * added "--with-tkinclude" 
        * fixed "--with-tclinclude" to set TCL_INCLUDES (for all subdirs)

2003-11-29 Gustaf.Neumann@wu-wien.ac.at, Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * release of distribution XOTcl 1.1.0

2003-11-29 Gustaf.Neumann@wu-wien.ac.at
        * moved tcl command hooks into thread local storage
          to fix a bug, when xotcl is loaded into a thead
        * fixed various documentation bugs, added style files for
          XOTcl tutorial, made presentation more uniform, made
          distinction between literals and placeholders visible
        * fixed a few issues with purify and mt (many thanks to Zoran!)
        * some Makefile improvements (removed the need to generate
          documentation on each run of make)
        * Fixed compilation issues of expat with tcl 8.3 or younger

2003-11-28 Gustaf.Neumann@wu-wien.ac.at
        * fixed include path for actiweb components (sdbm and expat)
        * extended transparent mixins for upvar, uplevel
        * extended regression test

2003-11-27 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * added new version of Klaus' securePlaceDemo, some minor 
          corrections for new XOTcl version
        * installed XOTcl library into lib directory under 
          windows instead of bin

2003-11-26 Gustaf.Neumann@wu-wien.ac.at
        * removed ::xotcl::lib from predefined variables and from man page
        * added namespace require to xotclsh
        * added transparent mixins for instvar

2003-11-25 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: further generalization of call stack entry
          skipping; cutFrames can skip now over filters and/or mixins
        * "Class new -volatile" works now through filters and mixins
        * regression test updated
        * reduced size of xotcl distro
        * fixed various typos in language reference

2003-11-22 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: generalized cutting of call stack entries to
          skip either filters or mixins
        * "Class new -volatile" works now through mixins for create
        * added test to regression test (testx)
        * xotcl.c: some cleanup and speedup
        * updated aol-xotcl.tcl (for loading xotcl into aolserver 4.0)

2003-11-20 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * updated documentation:
          - added a section "Integrating XOTcl Programs with C Extensions
            (such as TK)" to the tutorial
          - updated tutorial, readme, compile, compile.win

2003-11-16 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: forced HTTP/1.1 requests over SSL
          to use HTTP/1.0 due to a problem between OpenSSL
          and certain incarnations of IE.
        * Documenting requireNamespace in more detail.

2003-11-13 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * various changes to support conditional shell building with stubs
        * various changes to build libxotcl/xotclsh with tcl 8.0 
          (stub dependencies)
        * Httpd.xotcl: added parameter to web server to 
          configure timeout for persistent connections
        * eliminated a few compiler warnings from xotcl.c
         
2003-11-12 Gustaf.Neumann@wu-wien.ac.at
        * removed namespace import/forget in predefined.xotcl
        * Makefile cleanup (fixed duplicate dependencies, quoting in loops)
        * added tests for xoRDF and Persistence, when actiweb is enabled
        * building expat, when actiweb is enabled
        * removed needless files from xotcl-distribution.

2003-11-09 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed calling exit-handler twice for threads

2003-11-06 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: simplified handling of command substitutions;
          starts to work with Zoran's nstrace.tcl for AOLserver

2003-11-02 MichaelL@frogware.com 
        * XOTcl Stub lib configure files for C-based extensions.

2003-11-02 Gustaf.Neumann@wu-wien.ac.at
        * XOTcl intercepts a few commands (info, rename, uplevel and
          upvar) and assumed that these commands are defined in C.
          Command intercepting was fixed such that intercepting
          a proc info works as well; before xotcl produced a core.
          Example:
            % rename ::info ::tcl::info
            % proc ::info args {uplevel ::tcl::info $args}
            % package req XOTcl

2003-10-31 Gustaf.Neumann@wu-wien.ac.at
        * Substituted config/config.sub and config/config.guess 
          (many thanks to Zoran)
        * unix/Makefile.in fixed target install-aol

2003-10-23 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: new proc "__unknown" for Class; whenever
          XOTcl references a class, which is not defined yet,
          "Class __unknown" is called; this mechanism can be 
          used to autoload classes in a lightweight fashion
        * fixes in the built system to avoid two different
          "package ifneeded" (seems to cause troubles under 
           certain circumstances)
        
2003-10-20 MichaelL@frogware.com 
        * Fixed the return value of TclExpatUnknownEncodingHandler 
          in tclexpat.c. The return value of the handler is now
          correctly passed to expat.

2003-10-14 MichaelL@frogware.com 
        * Changed library names on Windows to make library names more
          similar across platforms. Changed xotcl.c and xotclStubLib.c
          to support XOTcl stubs. Changed Windows Makefile.vc's to
          build all libraries with XOTcl stubs by default. Changed
          Windows Makefile.vc's to specify base load addresses for all
          libraries. Fixed compiler warnings in winMain.c. Fixed
          compiler warnings in tclexpat.c.

2003-10-08 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * a number of changes to make XOTclSdbm and XOTclGdbm work
          with xotcl.h solely ... in particular, introduced new stub 
          functions and Interface structs for XOTclClass and XOTclObject:
          XOTcl_Class and XOTcl_Object. Changed XOTcl's core to expose 
          these in the extern functions that are exposed via xotcl.decls.

2003-09-10 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * Integrated bug fixes provided by Klaus Kolowratnik 
          <Klaus.Kolowratnik@wu-wien.ac.at> for the secure http server.

2003-08-27 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * moved config.vc, installWin.tcl to win dir and corrected them
        * merged /makefile.vc and /win/makefile.vc; everything for win
          now works from the win dir 
        * adapted other makefile.vc's in distro
        * corrected stub table decls and auto generated table .h files
          that where incorrect due to recent changes in external API
          (XOTclRemoveClass, XOTclAddClass)
        * corrected README
        * added  pkgIndex file for win local dir
        * win version change to 1.1
        * corrected the wrong local TCLLIBPATH on unix from '$(TOP_DIR)' 
          to '$(TOP_DIR)/unix $(TOP_DIR)/library' to circumvent the win
          dir on the auto_path
        * added locale support to xotclAppInit

2003-08-27 Gustaf.Neumann@wu-wien.ac.at
        * went with spell checker over tutorial and
          fixed a hundred of typos
        * fixed install of shells
        * fixed optional built of xowish (TK_LIB_SPEC was not passed correctly)
        * removed obsolete check_library_path in predefined.xotcl
        * some fixes in ::xotcl::config mkindex for autoloadine files
        
2003-08-26 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * doc for precedence order and transitive instmixins in tutorial

2003-08-25 Gustaf.Neumann@wu-wien.ac.at
        * Generate library/pkgIndex.tcl from configure 
          (contains version numbers)
        * Fixed script for changing version numbers in xotcl
        * Changed version of XOTcl to 1.1.0

2003-08-22 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * Added support for transitive instmixins in xotcl.c, 
          added test for transitive instmixins
        * Various fixes for new build stuff on Windows

2003-08-20 Gustaf.Neumann@wu-wien.ac.at
        * Fixed configure problem with autoconf coming with RH 9.0
        * Allow for the definition of parameters as objects.
          It is now possible to have parameters with properties
          (See tutorial, section "Objects as Parameter")
        * fixed various bugs in the documentation.
          MAKE TODO: make rpm, bin-tar, version-change, install-aol
    
2003-07-13 Gustaf.Neumann@wu-wien.ac.at
        * Fixed potential crash with shared objects in configure
        * First version of object tree creation via parameter

2003-07-11 Gustaf.Neumann@wu-wien.ac.at
        * extended parameter handling code to support the creation 
          of parameter objects
        * fixed a few documentation bugs

2003-07-05 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: if object is called without method and 
          arguments, xotcl calls now a method named 'defaultmethod'; 
          the default behavior (defined as an instproc on 
          Object) is that the name of the object is returned. 
          Example:
            Object o
            puts <[o]>   ;# outputs <::o>
            puts <[o defaultmethod]>   ;# outputs <::o>

2003-06-28 Gustaf.Neumann@wu-wien.ac.at
        * added --with-xotclsh and --with-xowish to create
          shell optionally

2003-05-28 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * added "info mixinguard" and "info instmixinguard"
        * changed GuardList behavior to tolerate qualified names
        * added tests for 'info instmixinguard' and 'info mixinguard'
        * made -withGuard and -order work together for "info filter"
          on objects.
        * checked that guard is deleted, when redefined 
          with FilterAdd/MixinAdd
        * add -guard modifier into filter, mixin definitions and infos
        * updated tests

2003-05-23 Gustaf.Neumann@wu-wien.ac.at
        * removed toplevel configure and Makefile for better 
          TEA compliance
          (configure should be called from xotcl*/unix)
        * added --with-actiweb to configure; 
          (use --with-actiweb=yes to enable it)
        * standarized tests (using the same Test classes)

2003-05-16 Gustaf.Neumann@wu-wien.ac.at
        * removed binary shells and XOTcl's context depending
          auto_path setting; consequences:
           - in order to invoke xotcl before installation, use
                export TCLLIBPATH=`pwd`
             in XOTcl's build directory
           - instead of using the environment variable XOTCL
             (as described in this Changelog on 2001-01-08,
             use TCLLIBPATH
        * Two small tcl scripts "xotclsh" and "xowish" are provided
          for backward compatibility with xotclsh applications
        * For interactive use, adding 
               package require XOTcl; namespace import -force xotcl::*
          into your ~/.tclshrc is recommended
        * Various changes and simplifications in configure and Makefiles
        * XOTclGdbm: fixed it such it works with enable-threads without
          crashing immediately

2003-05-12 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * removed various bugs in new code and added tests for 
          redefinition and removal of filterguards
        * added tests for 'instmixinguard' and 'mixinguard'

2003-05-11 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * added new methods 'instmixinguard' and 'mixinguard'

2003-05-09 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * changed the filter, mixin, and guard code to provide a new
          composition strategy for (filter- and mixin-)guards, in
          case a guard is defined more than once for the same filter
          or mixin... now only the most specific guard counts, all
          others are overridden by this guard. Example:
                Class B -superclass A
                A instfilter {{f2 {[self] == "::b2"}}}
                B instfilter {{f2 {[self calledproc] == "set"}}}
          Here: for an instance of B only the guard on B counts.
        * updated the tests accordingly
        * performance improvement:
          removed ::xotcl::Object from mixin full list computation
        * added new tests for mixinguards to testx.xotcl        
        
2003-05-03 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: Changed mixinlist creation from quadratic to linear
          (both, in XOTclAddClass and CmdListAdd)

2003-04-29 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: cleanup to avoid potential crashes on error messages
          (varargs not terminated by NULL)
        * introspection for mixin guards (o|cl info instmixin|mixin -guards)
        * new option for info methods to return only those methods where
          the guard holds in the current context (info methods -incontext)

2003-04-25 Gustaf.Neumann@wu-wien.ac.at
        * fixed various typos in examples in tutorial
        * first implementation of guarded mixins

2003-04-24 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * document "info instdefault" in the language reference
        * corrected a problem with move: it did not prevail the subclass
          relationships; also added a regression test

2003-04-22 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: calling the "create" method from 
          the "new" method through the dispatcher (previous version
          used a direct call, now create can be overloaded)

2003-04-17 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * Unified ListObjChildren and ListClassChildren into one method 
          ListListChildren
        
2003-04-16 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed segfault from classchildren
          (many thanks to Michael Cleverly for pointing this out)

2003-04-16 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: Fixed passing of error codes from constructors 
          (instproc init). In previous releases, errors were
          ignored
        * xotcl.c: Passing correctly error messages from "set" to the
          XOTcl set method.

2003-03-19 Gustaf.Neumann@wu-wien.ac.at, Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * release of full distribution XOTcl 1.0.2

2003-03-19 Gustaf.Neumann@wu-wien.ac.at, Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * release of full distribution XOTcl 1.0.2

2003-03-19 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * changed  requireNamespace so that contents of a  Tcl Namespace
          with the same name as the XOTcl Namespace to be created survive
          the requireNamespace invocation & added tests in  testx.xotcl.
          Example:
            namespace eval a {proc o args {puts o}}
            Object a -requireNamespace
            ### -> a::o survives
        * some minor issues to everything work with tcl/tk 8.4.2

2003-03-08 Gustaf.Neumann@wu-wien.ac.at, Zoran Vasiljevic <zoran@archiware.com>
        * some more code cleanup (do not abort when my is called outside
          the scope of an object)
        * Makefile less verbose

2003-03-07 Gustaf.Neumann@wu-wien.ac.at
        * Made output of the serializer more compact (omitting unneccessary
          references to ::xotcl::Object

2003-03-07 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * Copy/Move to self had undefined or wrong results; corrected 
          both methods so that the objects stay untouched when copied or
          moved to self. Added test in testx.xotcl.

2003-03-04 Gustaf.Neumann@wu-wien.ac.at, Zoran Vasiljevic <zoran@archiware.com>
        * Made xotcl capable to be loaded via "package require" into
          aolserver-4
        * To build and install XOTcl for the aolserver-4
          the following commands can be used

          # cd /usr/homes/zv/tmp/xotcl-1.0.2
          # CC=gcc;export CC
          ./configure --enable-threads --prefix=/var/tmp/aolserver \
              --enable-symbols --without-tk --without-gdbm \
              --with-tcl=/usr/homes/zv/dev/tcl8.4.1/unix
          # make
          # make install-aol

          This installs libxotcl*.so, the serializer, and the
          file xotcl.tcl into aolserver/modules/tcl. The file xotcl.tcl
          contains a "package require XOTcl" and "... serializer"
          and sources the files aolserver/modules/tcl/*.xotcl 

2003-03-04 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: abort, when a non-threaded xotcl version
          is loaded into a threaded environment (e.g. aol-server)

2003-02-28 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed a bug the lead to a crash in "self x"

2003-02-20 Gustaf.Neumann@wu-wien.ac.at
        * fixes to compile xotcl as a module for aolserver-4 

2003-02-06 Gustaf.Neumann@wu-wien.ac.at
        * made -volatile a method rather than an option of the 
          new method

2003-01-18 Gustaf.Neumann@wu-wien.ac.at
        * aol-server adjustments (fix the documentation
          for new directory strucure, update serializer code, testing)
        * provided simple replacements for xotclsh and xowish scripts
          in the unix subdir for testing purposes (not yet installed)

2003-01-17 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * new directory structure with no version information
        * removed pwd from make.xotcl
        * new method "ismixin": Test whether the argument is a 
          mixin or instmixin of the object.
        * new method "hasclass": Test whether the argument is either 
          a mixin or instmixin of the object or 
          if it is on the  class hierarchy of the object.
          This method combines the functionalities of 
          istype and ismixin.
        * documented and tested new methods.
        
2003-01-12 Gustaf.Neumann@wu-wien.ac.at
        * Changed calls in the form of "[self] method" to "my method"
          in 59 files in the xotcl distribution
        * changed Serializer to use [list] in configure where necessary

2003-01-09 Gustaf.Neumann@wu-wien.ac.at
        * configure methods can be placed into a list to avoid
          ambiguity of "-". This character is used as a metachar to
          denote method names, but it has to be used in values as well.
          Example: 
             Class Book -parameter {title author}
             Book b1 -title "--the title--" -author a.b.c
          has to be written as 
             Book b1 [list -title "--the title--"] -author a.b.c
          Note, that XOTcl allows us to provide multiple arguents
          to methodss called via configure

2003-01-05 Gustaf.Neumann@wu-wien.ac.at
        * configure returns now the number of preceding elements
          without a "-" in its first place. This is needed
          for conveniant processing of argument lists with trailing
          options from tcl. 
        * avoid processing configure list twice in c code.

2002-12-29 Gustaf.Neumann@wu-wien.ac.at
        * some cleanup in c-code (to make -Wall slient)
        * fixed a bug in the "all" method of the Serializer, changed
          package name to "xotcl::serializer"

2002-12-27 Gustaf.Neumann@wu-wien.ac.at
        * removed deprecated methods "parameters", "applymethods",
          "newChild", "newChildOf"

2002-12-23 Gustaf.Neumann@wu-wien.ac.at
        * release of full distribution XoTcl 1.0.1

2002-12-22 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: some cleanup
        * aol-server: improved namespace.tcl (using Serializer) 

2002-12-19 Gustaf.Neumann@wu-wien.ac.at
        * New Serialzer: 
            - up to 30% faster recreation of objects
            - more control of objects or variables to be omitted
            - provide mappings for (relative) object names
          In general, the Serializer 
            - is used to generate the blueprint of a workspace 
              (e.g. in the aolserver)
            - can be used migate objects between threads
            - to cache objects in the aol-server
          For details, see doc.

2002-12-18 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: new predefined method 'noinit'
          can be used to create an object without calling its
          constructor (used in the serializer to recreate objects
          from a snapshot)

2002-12-17 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * installWin.tcl: correction for patchlevel
        * changed version to 1.0.1

2002-12-14 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c fixed a bug in "info default arg var" and 
          "info instdefault arg var" in connection with filters.
          The output variable was created in the filter frame.
          Many thanks to Oumung Mehrotra for reporting the problem.
        * New switch for compilation USE_ASSOC_DATA to use Tcl_AssocData
          instead of namespace client data for the runtime state 
          (without assoc data, 10-15% faster)

2002-12-06 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * changed recreate semantics: recreate now calls the cleanup
          method; so that one can preserve object information in the
          recreate, call next (and do the cleanup), and finally handle
          the correction for recreation.
        * tutorial: added example of structure preserving recreate and
          updated langRef.xotcl accordingly

2002-11-22 Gustaf.Neumann@wu-wien.ac.at
        * fixes in documentation
        * automatic generation of pdf files and make target
          for the tutorial and the language reference 

2002-11-19 Gustaf.Neumann@wu-wien.ac.at
        * fixes for configure for aolserver 3.5.*

2002-11-13 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * correct check for XOTcl lib on auto_path in predefined.xotcl;
          it was checked for xotcl$VERSION, should be xotcl$VERSION

2002-11-08 Gustaf.Neumann@wu-wien.ac.at
2002-11-08 Uwe Zdun <uwe.zdun@uni-essen.de>
        * Win makefile.vc: let nmake install call the install script 
        * removed "class" hook from recreate ... 
        * updateding AOL-server patch and README
        * finshing rpm and bin-tar generation
        * release of full distribution XoTcl 1.0

2002-11-06 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * let the Unix Makefile also (try to) cleanup Win->Release dirs

2002-10-30 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * fixes for tcl 8.0.5

2002-10-28 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * used a proc for exit handler (instead of Object variable),
          old interface for exitHandler does still work
        * eliminated a mem leak in FilterFindReg as indicated by
          Zoran.

2002-10-26 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed problem with external symbol for 
          cmdType and reactivated KEEP_TCL_CMD_TYPE for all 
          tcl versions

2002-10-25 Zoran Vasiljevic <zoran@archiware.com>
        * xotcl.c: fixed memory leak for new method.

2002-10-23 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
              * Object instproc extractConfigureArg: get one configure argument
          (and possibly cut it) from a given args list. Especially used in 
          create before init is called with next to get args 
          before the object is actually created (& documentation).

2002-10-22 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * used Tcl's Assoc structures for runtime state

2002-10-21 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * corrected "abstract" next handling in predefined.xotcl

2002-09-19 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: prevent duplicate destroy calls during cleanup
        * xotcl.c: error in exit handler does not panic anymore, but
          writes to stderr (panic can't be used when exit handler
          is called by a thread)
        * Serializer.xotcl: {Serializer all] return exit handler
          as well.

2002-09-14 Gustaf.Neumann@wu-wien.ac.at
        * Trace.xotcl: fixed typos in documentation code, changes 
          for "my".
        
2002-08-29 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * corrected findXOTcl.c: it got confused by an toplevel
          XOTcl dir, like: ~/xotcl-1.0/x/xotcl-full-1.0 and didn't find 
          the libs then. 

2002-08-27 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * disabled KEEP_TCL_CMD_TYPE for 8.4, as it did not compile for 8.4b1

2002-08-04 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: order directories before files in directory
          listings

2002-07-18 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: fix for handling broken links

2002-07-12 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * Win fixes for compilation with Tcl 8.4b1
        * fixed mem leak of filter search

2002-07-10 Gustaf.Neumann@wu-wien.ac.at
        * fixes for compilation with Tcl 8.4b1 

2002-07-06 Gustaf.Neumann@wu-wien.ac.at
        * Fixed a compilation bug concerning Tcl 8.2 and younger

2002-05-30 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed destroy bug, when object was destroyed 
          during init
        * xotcl.c: minor cleanup

2002-05-16 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * xotcl.c: searching filter start commands again, if order is
          invalidated. Otherwise filter commands of de-registered mixins
          persist to be a filter. If no other filter or instfilter with
          the name is found, the filter entry is removed from the filter
          list.
        
2002-05-15 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * COMPILE: an explicit sentence in the beginning that you need
          Tcl/Tk sources to compile XOTcl.
        * xotcl.c: FilterSearch has only search for object-specific
          filters in the object's current order ... that was a bug. It
          has to search for filters on mixins and instmixins as they are
          specified by filter and instfilter. fixed.
        * xotcl.c: Filter application order was: object filters -> mixin
          filters -> class filters. Corrected to mixin filters -> object
          filters -> class filters. Now it conforms to the order on
          normal dispatches.
        * xotcl.c: changed fatal abort to error, when self is called
          without an active object

2002-05-05 Gustaf.Neumann@wu-wien.ac.at
        * fixed UTF-8 conversion for filenames
        
2002-04-30 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: minor cleanup (removed superfluous instvars)
        * xotcl.c: removed incr/decr refcount on cl-names in DoDispatch

2002-04-21 Gustaf.Neumann@wu-wien.ac.at
        * fixed a bug in path settings:
          when xotclsh was called from an xotcl source directory where
          no libxotcl*.so was located (e.g. before a compile) an error
          was produced during load; xotclsh checks now whether it can
          locate the .so file before setting the path.

2002-04-20 Uwe Zdun <uwe.zdun@wu-wien.ac.at>
        * fixed a bug in filter code (recursion blocking)

2002-04-20 Gustaf.Neumann@wu-wien.ac.at
        * Http client code: fixed several small bugs:
          - url composition
          - error handling 
          - redirects to different ports

2002-04-09 Uwe Zdun <uwe.zdun@uni-essen.de>
2002-04-09 Gustaf.Neumann@wu-wien.ac.at
        * finshing rpm and bin-tar generation
        * patch release of full distribution (0.9.4)

2002-04-08 Gustaf.Neumann@wu-wien.ac.at
        * fixed a bug in copy/move (the constructor was called during
          copying without instvars etc.; now the construcor is not
          called here) Many thanks for Artur Trzewik for noting this.

2002-04-08 Uwe Zdun <uwe.zdun@uni-essen.de>
        * fixed .add files for Windows

2002-04-07 Gustaf.Neumann@wu-wien.ac.at
        * removed persistence dir in actiweb regression test to achieve
          same behavior on each run of the test
        * Storage.xotcl: fixed a bug when new persistence directories are
          created
        * fixed a small memory leak in autonames

2002-04-05 Gustaf.Neumann@wu-wien.ac.at
        * defined the following policies for excplicit freeing in the 
          exit handler:

            NO_CLEANUP    for processes, the physical free in the exit handler
                          is not needed

            CLEANUP       for threads, just the xotcl classes/objects with
                          its instvars are reclaimed, annother
                          mechanism should take care of the global 
                          procs and vars (automatically choosen, when
                          compiled with TCL_THREADS)

            FULL_CLEANUP  for testing purposes, to check, whether xotcl
                          has memory leaks; all global procs and vars
                          are deleted as well.

2002-04-04 Gustaf.Neumann@wu-wien.ac.at
        * fixed a bug with duplicated tcl_objs of XOTclObjectType 
          that could cause double frees.

2002-04-02 Gustaf.Neumann@wu-wien.ac.at
        * Less agressive converison to tcl_objs of XOTclObjectType.
          It will try to keep objects of type tclCmdType when
          KEEP_TCL_CMD_TYPE is activated during compilation (default).

2002-03-28 Gustaf.Neumann@wu-wien.ac.at
        * horrible bug fixed, when USE_ALLOCA or USE_MALLOC
          was defined (macro substitution lead to wrong arithmetic).
          These macros were defined for c-compilers that do not
          support variable sized arrays as local variables. Gcc
          were always fine, but e.g. under the standard AIX compiler
          array boundaries were overwritten... I wonder, why we have
          seen no bug reports, this bug was in since ages....

2002-03-27 Zoran Vasiljevic <zoran@archiware.com>
        * more code for volatile objects moved to C

2002-03-26 Gustaf.Neumann@wu-wien.ac.at
        * Fixed a few more places, where recounted xotcl-objects 
          can cause troubles (mem-leaks + invalid pointers)

2002-03-24 Gustaf.Neumann@wu-wien.ac.at
        * auto-deletion of global vars and proc to 
          get rid of references to xotcl-objects for deletion

2002-03-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * added reference counts for xotcl objects to
          avoid crashes for recreated objects (thanks for 
          Artur Trzewik for sending a good bug report)

2002-03-11 Zoran Vasiljevic <zoran@archiware.com>
        * xotcl.c: fixed XOTclReplaceCommand for AOL-Server 
          (multi threading bug)

2002-03-11 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: fixed relative pathname-bug for basic authentification

2002-03-02 Gustaf.Neumann@wu-wien.ac.at
        * marked newChild as deprecated (use new -childof)

2002-03-02 Gustaf.Neumann@wu-wien.ac.at
        * Changed name of selfdispatch to "my"

2002-03-01 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: allow encoded characters in path and resource names
        * Httpd.xotcl: use dictionary oder for directory listings
        * Mime.xotcl: added some more default mime times

2002-02-24 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: added functionality to provide directory listings
        * Httpd.xotcl: create specified root directory if it does not
          exist

2002-02-13 Gustaf.Neumann@wu-wien.ac.at
        * Makefile.in: fixed a bug in make install 
          ("package require package" did not work)

2002-02-12 Gustaf.Neumann@wu-wien.ac.at
        * HttpPlace: added Pragma no-cache for dynamic contents
        * overworked persistence manager to separate storage
          specific concerns (like directory checking) from generic ones
        * new storage manager multi-storage to multiplex storage
          requests to multiple sinks.

2002-01-10 Uwe Zdun <uwe.zdun@uni-essen.de>
        * removed duplicated system library in library/system. The correct
          one is in xotcl-XXX/library!!

2002-01-09 Gustaf.Neumann@wu-wien.ac.at
        * fixed path determination code during
          startup to avoid "cant read 'pf'" messages

2002-01-08 Uwe Zdun <uwe.zdun@uni-essen.de>
        * introduced bcc (copy) database option for persistent databases and
          configuration option for db file names and  dirs in actiweb
          places
        * xotcl.c: found and fixed a small bug in unknown:
            Object o; o r
          with no unknown defined has looped (not for class -> unknown).
          corrected it and added it to testx.xotcl
        
2002-01-06 Gustaf.Neumann@wu-wien.ac.at
        * further improvement of bytecode compilation
        * new bytecode instruction SELFDISPATCH
        * methcall benchmar now more than 40% faster than in 0.9.3
        * some cleanup in xotcl dispatch code
        * fixing external references for symbols not starting with xotcl

2002-01-02 Gustaf.Neumann@wu-wien.ac.at
        * new xotcl byte codes for XOTcl primitives next, self, 
          and initProcNS. Speedup for the oo-shootout
           + methcall 30%
           + objinst 9%
          some tests are now twice as fast than before, self is
          now 10 times faster (about 1 microsecond on a 600 MHz PIII)

2001-12-28 Gustaf.Neumann@wu-wien.ac.at
        * fixed changeXOTclVersion, made more generic
        * fixed Agent migration, made all migrations synchronous
          (for the time being)

2001-12-17 Uwe Zdun <uwe.zdun@uni-essen.de>
2001-12-17 Gustaf.Neumann@wu-wien.ac.at
        * finshing rpm and bin-tar generation
        * patch release of full distribution (0.9.3)

2001-12-10 Uwe Zdun <uwe.zdun@uni-essen.de>
        * removed two "! test" so that configures work with sh on Solaris
        * added make bin-tar target
        * removed all compiler warnings on windows

2001-12-09 Gustaf.Neumann@wu-wien.ac.at
        * revived configure-code for aolserver, added patchlevel 
          to log message, updated aolserver README file
        * renamed directory "script-creation" to "serialize"
        * deactivated create of unneeded installed dirs 
          (xotclexpat, xotclgdbm, xotclsdbm)

2001-12-07 Uwe Zdun <uwe.zdun@uni-essen.de>
        * documented recent changes in XOTcl for release

2001-12-05 Gustaf.Neumann@wu-wien.ac.at
        * fixed call to unknown in copy method

2001-12-01 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: xotcl::interp rewritten
        
2001-11/12 Uwe Zdun <uwe.zdun@uni-essen.de>
        * changed xotcl support a (more or less) TEA compliant 
          build process, use Tcl stub lib, and make shells
          only shallow wrappers that load the XOTcl package
          on demand

2001-10-23 Gustaf.Neumann@wu-wien.ac.at
        * removed code for calling variable command

2001-10-22 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixed bug for empty superclass list
        * fixed stub-install under 8.0.5

2001-10-20 Gustaf.Neumann@wu-wien.ac.at
2001-10-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * patch release of source distribution (0.9.1)

2001-10-20 Gustaf.Neumann@wu-wien.ac.at
        * reimplemented method 'new' of Class in C
        * various cleanups for stub handling
        * added regression test for stub library

2001-10-18 Uwe Zdun <uwe.zdun@uni-essen.de>
        * removed linking glitch in 0.9: stub enabled lib was linked 
          with non-stub enabled obj-files.
        * added a stub enabled lib to Windows make procedure
        * renamed stub enabled lib to (lib)xotcl-tclstubs.(so|dll) 

2001-10-17 Uwe Zdun <uwe.zdun@uni-essen.de>
        * removed "can't instvar to link" problem during aliasing
          to a link var

2001-10-15 Gustaf.Neumann@wu-wien.ac.at
2001-05-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * XOTcl 0.9 Release
        
2001-10-14 Gustaf.Neumann@wu-wien.ac.at
        * new method of Object: parametercmd:
          a conveniant way to define a new getter/setter for 
          individual objects (similar to paramters for classes)
        * polishing docu

2001-10-11 Gustaf.Neumann@wu-wien.ac.at
        * improved make clean
        * fixed incompatibilities in various
          scripts distributed with xotcl

2001-10-11 Uwe Zdun <uwe.zdun@uni-essen.de>
        * configure.in: fixed that --without-tk functions
          ensured that user-defines with --with-tcl/tk
          override found settings.
        * xotcl.c:
          - conditional for different TclIncrVar2 interfaces
            in Tcl 8.05 and Tcl 8.3
          - added TCL_PARSE_PART1 to variable lookup in 
            GetInstVarIntoCurrentScope. TclLookupVar in 8.05
            requires it for looking up arrays with onyl part1
            given.
        
2001-10-10 Gustaf.Neumann@wu-wien.ac.at
        * fixed autoname method for Tcl 8.0.5

2001-10-10 Uwe Zdun <uwe.zdun@uni-essen.de>
        * finished polishing mem leaks (thanks to Zoran Vasiljevic again)
        * disallowed "[self] next" ... next is now only a command
        * Gdbm,Sdbm,Expat: corrected Makefile.in to rely on 
          -L$(TCLLIBDIR) (thanks to Jörg Rudnik for the hint)

2001-10-08 Gustaf.Neumann@wu-wien.ac.at
        * configure.in: fixes for AOLSERVER to ease configuration
        * aolstub.c: fixes for namespace handling (XOTcl is
          now a "well behaved" Tcl extension)
        
2001-10-05 Uwe Zdun <uwe.zdun@uni-essen.de>
        * added PRESERVE and RELEASE functions for Tcl_Objs so that
          we remember all Tcl_Objs that are temporarily allocated,
          otherwise the ExitHandler would not free Tcl_Objs, like:
          INCR_REF_COUNT(tclobj);
          callaMethodContainingExit(); /* "exit" call */
          DECR_REF_COUNT(tclobj); /* not reached */
        * corrected filtersearch and procsearch to return the new
          proc qualifier format:
            <objName|classname> proc|instproc <methodName>
          as a Tcl list. filtersearch does now operate on objs as well,
          procsearch does support mixins now. Added tests for both.
        * documented new features in tutorial and langRef
          
2001-10-04 Uwe Zdun <uwe.zdun@uni-essen.de>
        * minor fixes to get WIN version to run again
        
2001-10-03 Uwe Zdun <uwe.zdun@uni-essen.de>
        * removed some more mem leaks,
        * reworked exit handler to destroy metaclasses and operate on a
          instance list, instead of namespace cmdTable
        * pop remaining callstack entries in ExitHandler to prevent
          from false deletion order, if "exit" is called from within a
          method
        * changed XOTclErrInProc not to rely on obj/class Tcl_Obj*
           so that we do not have to preserve them in DoDispatch 
          (mem problem)

2001-10-02 Uwe Zdun <uwe.zdun@uni-essen.de>
        * added a optional simple mem counter functionality. DEFINE
          XOTCL_MEM_COUNT so that you get a mem count dump after exit.
        * removed some mem leaks
        
2001-10-01 Uwe Zdun <uwe.zdun@uni-essen.de>
        * new info option "info methods" ... returns all methods (procs
          and cmds) defined along the hierarchy for an object.
          accepts modifiers: -noprocs, -nocmds, -nomixins

2001-09-30 Uwe Zdun <uwe.zdun@uni-essen.de>
        * don't allow duplicates in filter/mixin structures (e.g. info
          filter has returned "b c b", now the filter appears only
          once. Filterguards are merged into one guard.
        * new modifier "-order" for info filter and info mixin -> 
          returns order on a particular object, for filters with
          syntax "<obj/cl> proc/instproc <procName>" for mixins just a
          class list

2001-09-26 Gustaf.Neumann@wu-wien.ac.at
        * cleanup, removed a few bugs
        * new instproc for Class: insttclcmd <name>
          creates an instmethod with the given name 
          that calls the Tcl command with the given name in the
          variable environment of the object
        * renamed instproc of Class parameteradd to: instparametercmd
        * xotcl.c: more complete set of tracing options for debugging
        * some speedups: 
           - instcommand array, append, lappend trace
             are now more than 3 times faster than before 
             (through insttclcmd)
           - condition checking (for pre and post conditions and guards)
             is as well more than 3 times faster than before
        * configure.in: made -Wall conditional for gcc

2001-09-25 Uwe Zdun <uwe.zdun@uni-essen.de>
        * merge with Gustaf's version

2001-09-23 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: new XOTclObject member "flags", which
          is a bitmap for various object states
          (isClass, isDestroyed, etc.). Defined several
          according macros XOTclObjectIsClass(obj),
          XOTclObjectToClass(obj), etc.
        * revitalized Tcl_Obj of type XOTclObj to speedup
          access of Objects and classes by using
             GetXOTclObjectFromObj
             GetXOTclClassFromObj
          (speedup of create by 15%, a few simple commands
           are now more than twice as fast (Object isclass))

2001-09-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - made objectData structure optional and moved 
          functions into file xotclObjectData.c
          use XOTCL_OBJECTDATA to compile it in
        - moved obj & cl clientDatas into optional memory, new extern
          getter/setter functions:  XOTclSetObjClientData,
          XOTclGetObjClientData, XOTclSetClassClientData,
          XOTclGetClassClientData. Used them in persistence store 
          wrappers xotclSdbm.c & xotclGdbm.c
        * testx.xotcl:
        - Added some obj filter tests

2001-09-19 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: 
        - added "opt" structures to XOTclObject and XOTclClass so that
          optional info (filters, mixins, asssertion,...) is only
          allocated on demand
        - corrected bug ... search for epoched filter cmd in 
          FilterRemoveOnObjFromCmdPtr also in mixins
        - added flags to XOTclObject instead of filterDefined,
          mixinDefined, and destroyCalled shorts

2001-09-18 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: removed object reference code ... I guess we won't do
          references this way

2001-09-17 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: added new instcommand "vwait" on object that mirrors
        the behavior of Tcl's vwait, but does not operate on flag
        TCL_GLOBAL_ONLY. The new xotcl obj var tables do not operate with
        that. E.g.:
        Object instproc vwait {varName} {
          [self] instvar $varName
          ::vwait [list $varName]
        }
        would wait for a global variable varName ... though:
        Object instproc vwait {varName} {
          [self] requireNamespace
          ::vwait [self]::[list $varName]
        }
        should work ...
        * xotcl.c: info classparent now returns object name of class, not
        ::xotcl::classes***
        * xotcl.c: new method "objeval" on Object. It executes an command
        in the scope of an object. This is an important convenience
        method because something like:
        Object instproc lappend {varName args} {
          [self] instvar varName
          eval ::lappend [list $varName] $args
        }
        is problematic if the object has a namespace and varName is an
        array element ... then Tcl does want to upvar it (was also
        present in all earlier xotcl versions ... we have used an
        instvar alias then). Now we can do:

        Object instproc lappend {varName args} {
          [self] objeval [concat ::lappend [list $varName] $args]
        }
        This is easier an faster than using an alias ...
        
2001-09-16 Uwe Zdun <uwe.zdun@uni-essen.de>
        * predefined.xotcl:
        - new method "trace" on Object ... simple forwarder to tcl's trace
        - eliminated "cset" on Object and from the distribution, seems to
          be nearly unused
        * whole distr:
        - replaced direct namespace variable accesses with [self] or
        instvar accesses. Here's what I did:
        (a) grep for <[self]::>
        (b) grep for <info exists> plus <::> together in one line
        (c) grep for <}::> to get e.g. ${a}::b
        that should find most occurrences of variable namespace access,
        except for direct accesses like: set y::x, where y is an object
        name and c a variable to be set. 

2001-09-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - Namespaces of objects are now created only on demand, 
          that is when:
          - obj proc is created
          - obj command is created with XOTclAddPMethod
          - child is created on the object
          Note that this is a prominent change. Especially it saves a
          significant amount of memory allocation per object. But you
          cannot assume the existence of object namespaces anymore.
           That means:
            Object o
            set o::var 1
          returns TCL_ERROR: parent namespace does not exist. Use 
            o set var 1
          instead. Same appears for append, lappend, trace, array and
          other Tcl variable handling commands.
          "info exists" is problematic because it does not return an 
          error message:
            Object o
             o set i 1
            info exists o::i
          returns 0.
        It is save to use all Tcl command together with instvar. 
        
        - new method "requireNamespace" on Object. Creates an object
        namespace explicitly.
        - new info option "hasNamespace" on Object: returns 1, if the obj
        currently has a namespace, otherwise: 0.
        - eliminated "returnCode" on RUNTIME_STATE due to several bugs, 
        why was it there??? 

2001-09-14 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - Changed XOTclCInfoMethod to be based on two switch statement        
          instead of ifs. Let List* functions return the state (such 
          as TCL_OK).  
        - introduced code for modifiers in info methods. Modifiers are
          "-" options that change the behavior of an info method
        - introduced -guard modifier for filter and instfilter (it 
          prints a filter list with guards)

2001-09-13 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - eliminated some flaws in filterguards
        - forbid "new" filtering during checking a filterguard

2001-09-06 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - also allowed instfilters on a mixin class of an object
        
2001-09-03 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c:
        - bug corrected: filter correctly removed from all dependent
          classes when filter proc is deleted or superclass is changed
        - bug corrected: added cmdEpoch check on computation of full
          filter/mixin lists

2001-09-03 Gustaf.Neumann@wu-wien.ac.at
        * various cleanup and fixes due to new features

2001-09-03 Uwe Zdun <uwe.zdun@uni-essen.de>
        * testx.xotcl:
        - filterguard tests
        * xotcl.c:
        - bug corrected: filter order invalidation upon new proc/instproc
           ... for filter inheritance

2001-08-25 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: 
          - new filter guards language construct for constraining filter
            appliance
          - introduced generic Tcl_obj* list instead of
            XOTclAssertion*,
         
2001-08-24 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: 
        - CallStackGetFrame: iterate only over INACTIVE filters (was a bug)
        - self filter & mixinsinfos: determine info position from
          callstack with CallStackGetFrame, so that uplevel functions with
          [self calling*,called*]
        - NextMethod: passed XOTCL_UNKNOWN through at end of mixin/filter 
          chain, if no method was found.
        * testx: added tests for these corrections.

2001-08-23 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c and tests: added initProcNS command executed at
          beginning of all XOTcl procs/instprocs ... it prevents from
          jumping to the object's namespace, when a proc is opened.
          Now:
            namespace eval html {
              Object o
              o proc t {} {puts ns=[namespace current];li}
              o t
            }
          results in:
            li
            ns=::html

          Now inside of a namespace, like ::Object, you can call global
          methods, like ::set without preceding "::" ...
         
        => Incompatibility to former versions: direct XOTcl proc
        calls, like:
             Object rp
            rp proc time {cmd time} {...}
            rp proc x {
              time "set x 3" t
            }
          are invalid ... you have to write:
            rp proc x {
              [self] time "set x 3" t
            }

2001-08-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c and all tests: moved Object, Class, and @ into ::xotcl
          namespace, now 
            namespace import -force xotcl::*
          has to be written at the beginning of each script to have 
          them in the global namespace.
        - info options now return ::xotcl::Object, ::xotcl::Class, and 
          ::xotcl::@
        - direct sets and unsets of variable are not possible anymore:
           "Object set a 5" functions, but not "set Object::a 5",
          but "set xotcl::Object::a 5" is ok

2001-08-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c and all tests: moved xotcl classes from ::XOTclClasses
          to ::xotcl::classes

2001-08-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * Actiweb -> made it run with new filter code ... what you have to 
        change on your existing code to make it run:
        1. change all invocations of "filter" to "instfilter"
         2. same for "info filter" to "info instfilter"
        3. same for "filterappend" to "instfilterappend"
        4. for all filters on metaclasses: you must not provide the
           metaclass name anymore, the filter finds it 
           automatically, say, if you have a metaclass C and a 
           filter f, you had to write:
             A filter C::f
            now this is
             A instfilter f
        5. replace regclass with [lindex [self filterreg] 0] ... 
           may be changed again
        
2001-08-17 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: integrated complete rewrite of filter code with
        per-object filters

2001-08-13 Gustaf.Neumann@wu-wien.ac.at
        * patch release of source distribution (0.85.3)
        * following naming conventions of Tcl for minor changes

2001-08-11 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c. predefined.xotcl: fast parameter inst-commands
        * xotcl.c: new instcommand for Object: parameteradd
                   (to register the instcommand for parameters)
        * xotcl.c: applymethods renamed to configure
        * xotcl.c: small speedup for assertion checking
        * xotcl.c: simplified set methods

2001-08-09 Gustaf.Neumann@wu-wien.ac.at
        * fixes for actiweb (agent migration was broken)
        * comm/Access.xotcl: a response to an HTTP-PUTS request should
          not contain a body. If it does, Httpd complains shortly
          and accepts it.
        * mos/Agent.xotcl: fixed obsolete code (callcoder)
        * mos/AgentManagement.xotcl: fixed broken RDF-interface

2001-08-04 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c reduced size of XOTclObject structure from 
          172 bytes to 68 bytes by allocating assertion
          structures on demand and by deactivating per
          default the old metadata structures

2001-08-02 Gustaf.Neumann@wu-wien.ac.at
        * integrating AOL-server-changes from Zoran, solution for 
            threads, stublib and older tcl-versions
        * improved stubs support
        * generating a stub library src/libxotclstub.so
        * AOL_DEFINES in Makefile (automatically activated 
          when xotcl is compiled within the source tree 
          of aolserver
        * configure.in: using exec_prefix for platform dependent files
        * new target: make libs (for AOL-server)

2001-07-23 Gustaf.Neumann@wu-wien.ac.at
        * improved parameter support (see apps/scripts/parameter.xotcl)
        * custom setter/getter methods
        * xotcl.h: make it usable from C++

2001-07-13 Uwe Zdun <uwe.zdun@uni-essen.de>
        * TextFileStorage: bug in opening files with 
          TextFileStorage eliminated 
        * MemStorage: fix for Mem Storage to support lazy 
          persistence (mem store persists object destroy)
        * Persistence.test: new test LotsOfObjects

2001-07-13 Gustaf.Neumann@wu-wien.ac.at
        * patch release of source distribution (0.85-p2)

2001-07-10 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: first draft of new implementation of parameter
          see apps/scripts/parameter.xotcl for a list of features

2001-07-06 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fix for propagating special return codes through
           next calls (e.g. ... return -code continue).
          This is needed for Tk integration; 
          thanks to catherine letondal@pasteur.fr for 
          pointing out the problem
        * Mime.xotcl: handling yet another file format for ~/.mime.types

2001-06-21 Uwe Zdun <uwe.zdun@uni-essen.de>
        * fix for tclexpat in Tcl 8.2 versions

2001-06-21 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: more fixes for bug in copy/move for object 
          names with spaces
        * predefined.h: fixes for xotcl methods for spaces in object 
          names (eval)

2001-06-20 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fixes for bug in copy/move for object names 
          with spaces
        * xotcl.c: reporting error codes when copy move does not work

2001-06-13 Gustaf.Neumann@wu-wien.ac.at
        * AIX compatibility fixes (thanks to Adrian Wallaschek)
        * improved portability
        * easier export from bk
        * Httpd.xotcl: added -ipaddr option to configure 
          IP-address of server

2001-06-12 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: fixed reference counting for volatile objects

2001-05-01 Gustaf.Neumann@wu-wien.ac.at
        * patch release of source distribution (0.85p1)

2001-05-30 Gustaf.Neumann@wu-wien.ac.at
        * new predefined method: newChildOf

2001-05-28 Gustaf.Neumann@wu-wien.ac.at
        * HttpPlace.xotcl: added call to replyCode in front 
          of replyErrorMsg
        * Httpd.xotcl: made httpd more robust in error cases 
          (invalid first line)
        * ignore attic in tar
        * xotclgdbm.c: faster exists test
        * lib/xml/TclExpat-1.1/Makefile.in: better make clean

2001-05-22 Gustaf.Neumann@wu-wien.ac.at
2001-05-22 Uwe Zdun <uwe.zdun@uni-essen.de>
        * XOTcl 0.85 Release

2001-05-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: parameter defaults for (per-class) mixins are 
          evaluated upon creation
        * tutorial: documented how to evaluate parameter defaults for
          obj/class mixins
        * win-files: adapted to new src directory tree

2001-05-15 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: fix for colon checking to determine parent namespace
        * xotcl.c: Object and Class create returns absolute name (with leading ::)
        
2001-05-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: fix for checking in parent namespace

2001-05-10 Gustaf.Neumann@wu-wien.ac.at
        * doc update (formatting, info instproc, ismetaclass and isclass)
        * xotcl.c: argument for ismetaclass and isclass is now optional
        * xotcl.c: checking for namespace parent in object creation to avoid crash
        * Httpd.xotcl: fix for ie 5.5 under win98, 
           POST has not always contentlength set

2001-04-14 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: don't call unknown for dash-commands on class
          objects to avoid errors like "Class C -superClass Object"
          that lead to object creation in earlier versions
        * first version of xoman
        * Httpd.xotcl: new method replyErrorMsg; replyCode
          does not produce HTML messages by itself

2001-04-07 Gustaf.Neumann@wu-wien.ac.at
        * Access.xotcl: added :: in front of global objects, more robust
        * using namespace for soap, implifying interface

2001-04-03 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl::comm::httpd: added error code 500 {Server Error},
          errorReply hook in replyCode added to be able to prevent HTML
           error response.
        
2001-04-03 Gustaf.Neumann@wu-wien.ac.at
        * xotcl::comm::httpAccess: user-agent string more generic

2001-03-27 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: added inheritance feature for instinvars
        * xotcl.c: standard cleanup now destroy aggregated children
        * testx.xotcl: tests for both new features in xotcl.c

2001-03-26 Gustaf.Neumann@wu-wien.ac.at
        * version number in xotcl references to allow multiple
          xotcl-versions to coexist
        * various changes to accommodate bitkeeper
        * package.xotcl: fixes for argument passing 
          (thanks to Artur Trzewik)
        * Httpd.xotcl: better error messages containing referer for 
          files which are not found on the server.

2001-03-22 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: "cleanup" does not receive args anymore
        * xoXML.xotcl: used [self class] for parser autoname

2001-03-19 Gustaf.Neumann@wu-wien.ac.at
        * removed dependencies form wafecompat
        * Sccs support added to makefiles
        * documentation for mixins updated
        * decode POST moved before "respond" to ease overloading

-----------------------------------------------------------------------------
2001-03-09 Gustaf.Neumann@wu-wien.ac.at
2001-03-09 Uwe Zdun <uwe.zdun@uni-essen.de>
        * release of Version 0.84

2001-03-09 Gustaf.Neumann@wu-wien.ac.at
        * removed "exec date" from tests to ensure win compatibility
        * fixed regression tests under win: don't use dependencies on 
          time-zones, fixed ordering problems and HTML bugs

2001-03-08 Gustaf.Neumann@wu-wien.ac.at
        * fixed a few bugs in xodoc
        * documentation for apps/utils/*
        * package name xotcl::store::storage changed to xotcl::store
        * PCache uses new Storage interface
        * new predefined object ::xotcl::rcs to extract
          info from RCS strings (methods date and version)

2001-03-07 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: Mutex patch for exit handlers in MT apps by 
          Zoran Vasiljevic
        * xotcl.c: self next implemented  ... enables callstack
          information for the "next" method
        * Persistent.test: bench test reduced to 272
        * tutorial/langref: documented new functionalities
        
2001-03-06 Uwe Zdun <uwe.zdun@uni-essen.de>
        * htmllib.xotcl: integrated new version with HtmlBuilder; 
          thanks to Antti Salonen.
        * package names: changed all package names to convention that
          names are starting with lower cases. Separated names with :: 
          prefixes. For now, these names are just chosen to avoid name
          clashes, in 0.85 they will probably be used as basis for a
          hierarchical component model.
        
2001-03-05 Uwe Zdun <uwe.zdun@uni-essen.de>
        * metadataAnalizer: split into dynamic and static variant (static
          is used for xodoc

2001-03-02 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: moved callstack information (calledproc, calledclass,
          callingproc, callingobject, callingclass, regclass) from 
          info to self; e.g. use in a filter instead of
              [[self] info calledproc]
          from now on 
              [self calledproc]
        * testx.xotcl: integrated callstack information changes.

2001-03-01 Uwe Zdun <uwe.zdun@uni-essen.de>
        * complete installation and test suite for Windows, i.e. doc,
          packages, all tests, install, etc. now function on Windows
          platforms
        * XOTclSdbm ported to Windows
        * Expat xotcl version running on Windows
        * xotclsh.1, xowish.1 man pages added

2001-02-27 Gustaf.Neumann@wu-wien.ac.at
        * new global variables for configuration and logging
           ::xotcl::confdir ~/.xotcl
           ::xotcl::logdir $::xotcl::confdir/log
        * new script daemon.xotcl for starting/stopping 
          xotcl scripts in the background

2001-02-22 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xoDoc.xotcl, metadataAnalyzer.xotcl: added documentation and 
          handling for "abstract" methods, and corrected bugs in html 
          appearance
        
2001-02-22 Gustaf.Neumann@wu-wien.ac.at
        * xotkAppInit.c: added static package Tk

2001-02-22 Uwe Zdun <uwe.zdun@uni-essen.de>
        * splitted xodoc.xotcl into a generic static metadata analyzer
          (metadataAnalyzer.xotcl) and the HTML documentation part
          (xodoc.xotcl).
        * htmllib.xotcl: incorporated fishpool's html lib for use 
          in xodoc; thanks to Antti Salonen.

2001-02-17 Gustaf.Neumann@wu-wien.ac.at
        * Serializer.xotcl: new package for serialization of workspace 
          contents (Classes and Objects). Serialization of full
          workspace:
              Serializer s
              s serializeWs ?filename?
          Serialization of Object or Class
              s serialize ObjectOrClass
        * bugfix in mixins
        * xotcl.c: tidying up

2001-02-10 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: some speed improvements 
          (next without args more than twice as fast due to moving
          arguments to the stack, caching of stack pointers)

2001-02-08 Uwe Zdun <uwe.zdun@uni-essen.de>
        ! xotcl.c: Removed mixin init logic. Mixin & instmixin inits 
          are only called if the mixin is registered for the object
          during initialization. Beforehand "mixin" has called init,
          when it wasn't called before. This was inconsistent with
          behavior of class and instmixin.

2001-02-06 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c, testx.xotcl, ...: tests for new destroy logic

2001-02-04 Gustaf.Neumann@wu-wien.ac.at
        * xotcl.c: cleanup and various simplifications
        ! using xotcl namespace for:
                version, lib, check_library_path, 
                interp, trace, deprecated, mkindex, load, 
                namespace_copyvars, namespace_copycmd
          potential incompatibility: use ::xotcl::version
          instead of ::xotcl_version!

2001-02-01 Uwe Zdun <uwe.zdun@uni-essen.de>
       * xotcl.c: new destroy logic with recreate   

2001-01-26 Uwe Zdun <uwe.zdun@uni-essen.de>
        * Persistence.xotcl: 
        - persistenceMgr now uses child object as storage
        - persistent arrays bug fixed, lazy persistent arrays added
        - added persistent arrays to test

2001-01-25 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: class redefinition logic instead of direct command
        destroy added to solve destroy problems identified 
        by Kristoffer Lawson.

2001-01-24 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: fixed alias bug identified by Kristoffer Lawson.

2001-01-22 Gustaf.Neumann@wu-wien.ac.at
        * fixed regression test for new path settings
        * removed Unix dependencies from regression test (sleep)

2001-01-18 Uwe Zdun <uwe.zdun@uni-essen.de>
        * all storages: added nextkey + firstkey methods 
          for traversal of DBs

2001-01-17 Uwe Zdun <uwe.zdun@uni-essen.de>
        ! all packages: all internal distribution package names now
          start with "xotcl::" to avoid name clashes with other 
          packages
 
2001-01-16 Uwe Zdun <uwe.zdun@uni-essen.de>
        * XOTclGdbm: added XOTcl Gdbm wrapper 

2001-01-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: alloc now handled as a Class instproc, like
          create. Thanks to Kristoffer Lawson for the hint.

2001-01-15 Gustaf.Neumann@wu-wien.ac.at
        * new Interface for persistent storage

          Class Storage
          Storage abstract instproc open   filename
          Storage abstract instproc close  {}
          Storage abstract instproc exists key
          Storage abstract instproc set    {key ?value?}
          Storage abstract instproc unset  key
          Storage abstract instproc names  {}  
 
2001-01-12 Uwe Zdun <uwe.zdun@uni-essen.de>
         * Storage test suite added

2001-01-09 Uwe Zdun <uwe.zdun@uni-essen.de>
        * Makefiles: generic makefile for expat, gdbm, ... in the 
          style of XOTcl's Makefile + fed by toplevel configure
        * packages/store/XOTclSdbm: sdbm wrapper for XOTcl 

2001-01-08 Gustaf.Neumann@wu-wien.ac.at
        * The search for the XOTcl library is performed according to the 
           following rules:

          1) If the environment variable XOTCL is set and points to a
             directory, it is taken as the XOTCL directory.

          2) If the auto_path (determined in part by the environment 
             variable TCLLIBPATH) contains a directory named "xotcl" 
             and it exists, it is taken.

          3) If no xotcl library is determined yet, check
             whether the current directory is in an xotcl source tree. If
             yes take it.

          4) If the auto_path contains a directory, that has a
             sub-directory named xotcl, it is taken.

          5) If the auto_path contains a directory that has a
             directory named xotcl as a neighbor, it is taken.

          6) Take the compiled-in path for the xotcl library. 

         After the search for the XOTcl library the global Tcl
         variable ::xotcl::lib is set to the determined directory. This
         directory is added automatically to the ::auto_path if
         necessary.

2000-12-15 Gustaf.Neumann@wu-wien.ac.at
        * packages/make.xotcl: passing target to avoid grep 
          through Makefile

2000-12-15 Gustaf.Neumann@wu-wien.ac.at
        * packages/make.xotcl: less verbose
        * new environment variable XOTCL, points to directory
          where the XOTcl library lives

2000-12-13 Gustaf.Neumann@wu-wien.ac.at
        * packages...Httpd.xotcl: close connection after errors
        * packages...Httpd.xotcl: elementary support for HTTP method
          OPTIONS

2000-12-04 Gustaf.Neumann@wu-wien.ac.at
        * xoXML: fix info vars 
          instvar method creates variable that is not accessible and
          should not be listed in info vars

2000-12-04 Gustaf.Neumann@wu-wien.ac.at
        * version changed to 0.84
        * xoXML: fix for multiple PCDATA calls after one element

-----------------------------------------------------------------------------
2000-11-30 Gustaf.Neumann@wu-wien.ac.at
2000-11-30 Uwe Zdun <uwe.zdun@uni-essen.de>
        * release of Version 0.83

2000-11-30 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xoXML/xoRDF: added the ability to process mixed content PCDATA
          (i.e. more than one pcdata in one element)
        
2000-11-29 Uwe Zdun <uwe.zdun@uni-essen.de>
        * src/lib/soccerClub.xotcl: simple introductory example for 
          the tutorial
        * xotcl.c: corrected assertion checking: built in commands that
          affect assertions are not checked (check, info, proc, instproc,
          invar, and instinvar). Otherwise we can not react on a broken
          assertion in the error handler (& documented this stuff in the
          tutorial).
        
2000-11-29 Gustaf.Neumann@wu-wien.ac.at
        * tried to improve documentation tool
        * work on xotcl homepage, manual section added

2000-11-28 Gustaf.Neumann@wu-wien.ac.at
        * apps/actiweb-apps/univ/ added (example for RDF)
        * packages/make.xotcl extended for test in apps directory
        * HtmlPlace.xotcl: allowExit method added for HtmlPlace to allow an 
          actiweb place to terminate via URL (primarily for regression tests, 
          which require no kill anymore, now platform independent)
        * Httpd.xotcl: logging of contains more detailed information
        * HttpPlace.xotcl: added HTTP errors (invalid requests 
          for actiweb are correctly noted in log files)

2000-11-28 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: Removed theClasses/theObjecs hashtable, because they
          caused some problems in exit handling (thanks to 
          Catherine Letondal for the hint), 
        * xotcl.c: fixed all remaining memory leaks in tests (thanks to Zoran
          Vasiljevic for helping us out with purify)
        * tutorial.html: added documentation for @

2000-11-27 Gustaf.Neumann@wu-wien.ac.at
        * src/Makefile.in: changed logic for building and 
          installing xowish
        * xotcl.c: fixed bug in "info mixins"

2000-11-24 Gustaf.Neumann@wu-wien.ac.at
        * Access.xotcl: overhaul, uses now exits method instead of 
          'info exists'
        * packages/xml/xml.xotcl: overhaul of the introductory XML-parser 
          example 
        * predefined.xotcl: new predefined method of Object: 
          vwait (Tcl semantics)
        * some tuning to avoid speed penalties
        * src/Makefile.in: added some dependencies

2000-11-24 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: removed internal mem leaks reported by dmalloc
        * xotcl.c: corrected assertion checking for built-in commands, like set
        * xotcl.c, xotclMetaData.c: put metadata into own file + 
            made them deprecated -> use @ instead
        * testx.xotcl, testo.xotcl: used @ instead of metadata
        * tutorial.html: reworked the tutorial, added instmixins
        
2000-11-22 Gustaf.Neumann@wu-wien.ac.at
        * dmalloc defines added to Makefile.in
        * xotcl.c: removed some mem leaks

2000-11-22 Gustaf.Neumann@wu-wien.ac.at
        * documented various sample applications
        * fixed problems with pipes for xocomm.test (should work now under
          windows as well)
        * polished output from xodoc
        * extended sample webserver to return info about the current 
          request and provided means for stopping it remote.

2000-11-22 Uwe Zdun <uwe.zdun@uni-essen.de>
        * configure.in: added ""'s around -z tests and added 
          --without-gdbm support
          (thanks to Catherine Letondal for the hint)
        * package/store/persistenceExample.xotcl added as a basic
          persistence store example.

2000-11-21 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: corrected infinite loop in instvar assertions
          (thanks to Zoran Vasiljevic for the hint)

2000-11-20 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c/xotclInt.h: moved the global objects and a static
          variable to interpreter structure (thanks to Zoran Vasiljevic for
          the patches)
        * xotcl.c correctes mem leak in "mixin" method 
          (thanks to Zoran Vasiljevic for the hint)

2000-11-03 Gustaf.Neumann@wu-wien.ac.at
        * MimeTypes can be specified for certain filenames via
          Mime set nameTable(ChangeLog$) text/plain
          where the index is treated as a regular expression
        * rpm target added to Makefile
        * rpm files added to www.xotcl.org
        * removed file installed to / from binary distribution

2000-11-15 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: corrected deletion order for aggregated children:
          child destructor is called before parent's destructor
        * Makefile.in: removed "-full-" from filename

2000-11-03 Gustaf.Neumann@wu-wien.ac.at
        Various changes to HttpPlace.xotcl and Httpd.xotcl
        * access control for HttpPlaces
        * new instance variable "user" in Worker for authenticated requests
        * access to ordinary files (and not only to WebObjects) from
          HttpPlaces (if there is no object with the name of the file)
        * worker added as a argument to credentialsNotOk

2000-10-28 Uwe Zdun <uwe.zdun@uni-essen.de>
        * testx.xotcl: added tests for instmixins

2000-10-26 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: added instmixins

2000-10-13 Gustaf.Neumann@wu-wien.ac.at
        * new global variable xotcl_version in analogy to tcl_version
        * fixed parameter passing to init for multiple arguments 
          (not starting with a "-")
        *  added regression test
        * fix bug for variable name aliasing in the instvar method

-----------------------------------------------------------------------------
2000-10-09 Uwe Zdun <uwe.zdun@uni-essen.de>
        * prepared Version 0.82 

2000-10-06 Uwe Zdun <uwe.zdun@uni-essen.de>
        * experimental tests for actiweb apps (invoke
          with 'make test' at toplevel)

2000-10-02 Uwe Zdun <uwe.zdun@uni-essen.de>
        * Documented xotcl.c + src/lib and src/scripts directories

2000-09-29 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xodoc.xotcl new XOTcl documentation package .. all docs 
          are now in file docs, with @ object

2000-09-28 Uwe Zdun <uwe.zdun@uni-essen.de>
        !! xotcl.c removed aggregation short form due to incompatibilities
          with unknown. I.e., 
            [self] Class x
          does not function like 
            Class [self]::x
          anymore, but triggers the unknown mechanism.
        * removed bug: parameters have tried to  call  "-1" 
          default value as method 

2000-09-26 Uwe Zdun <uwe.zdun@uni-essen.de>
        !! src/xotcl.c: short form for creation of nested object and
           classes removed.
        * new documentation tool

2000-09-22 Gustaf.Neumann@wu-wien.ac.at
        * new configure flags:
                --with-gdbm=INCDIR,LIBDIR
                --with-tk=INCDIR,LIBDIR
                --with-tcl=INCDIR,LIBDIR

2000-09-19 Gustaf.Neumann@wu-wien.ac.at
        * apps/actiweb-apps/FormsWithState.xotcl:
          new example script for implementing a multi-page form
          which keeps the state in a context object, which
          is passed from form to form via hidden form fields
        * new toplevel configure file
        * toplevel "make install" copies demo apps as well
          (should we set the path to xotclsh in first line?)

2000-09-13 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: added new format functionality to autoname. %
          strings are now recognized as in the Tcl "format"
          command. E.g.: autoname a%06d --> a000000, a000001, a000002, ..

        * rdf/xoRDF.test, rdf/RDFTriple.xotcl: used new autonames here
          in order to make triples sort-able with lsort

2000-09-12 Gustaf.Neumann@wu-wien.ac.at
        * Httpd.xotcl: Fixed a bug for IE5.5 with persistent connections:
         (Server blocked); cause: the Tcl command "fcopy" alters the 
         blocking state of a socket when it finishes (bug in fcopy 
         of tcl 8.3.2)

2000-09-12 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl/src: added xotclInt.h as XOTcl internal API 
          (still incomplete)
        * xotcl.c: 
          - extracted xotclProfile.c, xotclReference.c, xotclTrace.c, 
            and xotclError.c  from xotcl.c,
          - started conversion to Tcl-like naming convention for 
            functions: XOTcl... for internal API, 
                       XOTcl_... for external API

2000-09-07 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xoXML.xotcl: removed need for empty topNode
        * xoRDF.xotcl/RDFTriple.xotcl: Uniform Parse Tree
         - abbrev properties and parseType = resource  are now parse 
           into descriptions
         - class hierarchy uniformized to resources and properties 
           ... object names
           are either prop.. or res..
         - resource types are stored in rdftypes variable 
           (as a list of types)
         - Typed nodes are parsed into description + type
         - namespace definition at RDF tag recognized
         - hard coded "rdf:" removed (now rdfNSPrefix is stored on 
           each node, the parser has a rdfNamespace parameter)                                               

2000-09-06 Gustaf.Neumann@wu-wien.ac.at
        * packages/store/Persistence.xotcl: lazy open for 
          persistence database added (to avoid creation of not needed
          files, when no persistent variables are used, and to reduce
          permission problems for creation, opening, etc)

2000-09-04 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c, Makefile.vc: INST_XOLIBPKG, XOTCLVERSION passed to
          VC 6.0 preprocessor from Makefile.vc (thanks to David
          LeBlanc for the fix)

2000-09-04 Gustaf.Neumann@wu-wien.ac.at
        * xoRDF: trivial fix for make numbering of anonymous resources
          easier to comprehend
        * predefined.xotcl: methods "append" and "lappend" added
        * xotcl/Makefile: keeps track of configure.in and reconfigures 
          if necessary (eg. version change)
        * new -reset option for autoname (does currently not work with
          -instance)

2000-08-31 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xoRDF: added subject ID to anonymous descriptions & fixed bugs
        
2000-08-30 Uwe Zdun <uwe.zdun@uni-essen.de>
        * xotcl.c: fixed xotcltrace
        * trace.xotcl: "deprecated messages" show* fixed

2000-08-19 Gustaf.Neumann@wu-wien.ac.at
        * toplevel Makfile: target "make test" added

2000-08-16 Gustaf.Neumann@wu-wien.ac.at
        * RDFTriple got a new method "prettyTriples" which uses 
          indentation to show connections between triples (used in xoRDF.test)

2000-08-11 Gustaf.Neumann@wu-wien.ac.at
        * apps/xocomm/webserver.xotcl listens on port 9086 as well 
          to test basic access control
        * packages/make.xotcl -test added
        * Access.xotcl: fixes for credentials, timing for SimpleRequest now optional
          (-timing 1, default is -timing 0)
        * new files: packages/comm/xocomm.test, packages/rdf/xoRDF.test
        * Ftp fixed for now Access methods
         * "Class instproc newChild" and "Class instproc new" added

2000-08-09 Gustaf.Neumann@wu-wien.ac.at
        * untested C-API placed between #ifdef
        * dead code removed
        * all internal calls to destroy handled by a single
          function "callDestroyMethod"
        * target "xref" added to xotc/src/Makefile 
          (needs free program xref to be installed)

2000-08-08 Gustaf.Neumann@wu-wien.ac.at
        * new instcommand "exists" to check whether a variable
          exists (no need to use namespaces or instvar to check
          for the existence of variables)
        * xotcl.c: using new macros 
              VarFrameDecls
              VarFrameSwitchToObj(in,obj)
              VarFrameRestore(in)
          to change VariableFrames 
          (speedup mand making code more uniform)
        * returning int objects instead of string objects
        * using new features obove led to more than 20% speedup
          on RDF benchmark.
        * regression and speed test 
          xotcl/src/lib/speedtest.xotcl added 

2000-08-07 Gustaf.Neumann@wu-wien.ac.at
        * HTML Form interface changed, 
          form arguments are not longer appended to call
        * new methods for WebObj: getWorker and getFormData
           to access worker internals and form data
        * some minor speed improvements

2000-08-01 Gustaf.Neumann@wu-wien.ac.at
        !! more thorough checks for object names 
         (no ":", no "::", no ":[^:].+", no ".+:", no ".*NAME::[:]+NAME")
        * copy and move methods create no invalid names that must be fixed
          by Object creation
        !! methods called via "-" syntax must start with an alphanum character
        * Object creation 10% faster
              * apps/actiweb-apps/MC.xotcl uses POST instead of GET

2000-07-27 Gustaf.Neumann@wu-wien.ac.at
        !!! info children returns fully qualified object names
        !!! info classchildren returns fully qualified object names
        !!! info filter returns function names without class paths
        * fixed composite attributes in RDF
        * some speed improvements
        * parameter passing from FORMs to WebObjects via parameter objects
        * HtmlPlace has a default method that lists all exported objects
        * Mime component added
        * multipart-form data code added to Httpd

2000-06-26 Gustaf.Neumann@wu-wien.ac.at
        * version number increased to 0.82
        * automated version number management
        * test client and server for tls added
        * minor changes for TLS
        * minor fixes for Tcl 8.4a
        * including certificates

2000-06-20 Uwe Zdun <uwe.zdun@uni-essen.de>

        * packages/mos/Agent.xotcl:
        - migrate bug -- 'self' called after destroy of migrate --
          corrected
        - support for synchronous invoke, clone, and migrate added in
          addition to async methods
        
        * AgentClient/Receiver: example enhanced with class cloning and
          sync invoke, clone, and migrate

        
-----------------------------------------------------------------------------
2000-06-05 XOTcl 0.81 Release -- Major Changes to Version 0.80
        - changelog started by Uwe Zdun
        * xotcl.c: 
        - deep copy/move with all language features
         - renamed "parameters" to "parameter"
        - renamed "info filters" and "info mixins" to "info filter"/
          "info mixin"
        - added deprecated error message
        - added "xotcl_interp" command to start an XOTcl slave interp
        - better "package" support and integration
        - linearization of per-object mixin hierarchy with ordinary 
          class hierarchy
        - isobject, isclass, and ismetaclass with identical interface: 
          all have the obj/cls in question as argument
        - reference tracing with "info reference", "info referencedby" added
        - internal xotcl-lib now in predefined.xotcl -> make file 
          automatically creates predefined.h        
        * toplevel-configure added
        * Actiweb:
        - early alpha preview for code mobility, registry, web objects 
          added. be careful: the APIs will most likely change in the 
          future 
        - SSL Place
        * HTTPserver/access:
        - Open SSL support
        * xoXML/xoRDF:
        - RDF Typed Node support
        - Parsing of several top nodes at once -> mixing of XML and RDF easier
        - Tests integrated and several new tests
        - XML/RDF recreation added
        * xoStore:
        - Support for tclgdbm added -- thanks to Stefan Vogel for 
          providing the Win version of gdbm
