changelog.2000

tcl是工具命令语言

	* library/tcltest1.0/tcltest2.tcl:
	* tests/tcltest2.test:
	* doc/tcltest2.n: Modified the new form of the test command to
	accept both attribute-value pairs and command line options.
	Updated the tests and the documentation for this new format.
	Also changed the option names for the test command.

2000-09-29  Jeff Hobbs  <[e-mail]>

	* win/tclWinSerial.c (SerialGetOptionProc): corrected reporting of
	space parity on Windows (Eason) [Bug 6057].

	* win/Makefile.in: commented use of TESTFLAGS
	* unix/Makefile.in: added TESTFLAGS to test target to
	conform with Windows makefile and TEA style.

	* tests/stack.test: prevented possible crash on systems with low
	default stacksize (Tru64, AIX) in infinite recursion test.  A
	solution to check remaining stack space in the core is best, but
	hard to do in a cross-platform manner.

	* generic/tclIOGT.c (FLUSH_DELAY): renamed DELAY define to
	FLUSH_DELAY to avoid defn conflict using Tru64's cc.

2000-09-28  Jeff Hobbs  <[e-mail]>

	* tools/tcl.wse.in: added tclPlatDecls.h and tkPlatDecls.h to the
	Windows .exe install.

	* tests/fCmd.test (fCmd-6.20): corrected test to remove
	c:/tcl8975@ after creating it.

	* tests/fileName.test: cleaned up the testing of glob patterns for
	c:/globTest (Windows) to directly create/remove directory.

2000-09-27  Jeff Hobbs  <[e-mail]>

	* generic/tcl.decls:
	* generic/tclIO.c: updated Tcl_IsChannelShared,
	Tcl_IsChannelRegistered, Tcl_CutChannel, Tcl_SpliceChannel,
	Tcl_IsChannelExisting, and Tcl_ClearChannelHandlers to conform to
	the new stacked channel implementation.  Their stub slots were
	also moved to give preference to the new 8.3.2 stub functions.
	This will cause an incompatability with 8.4a1 only.
	(StopCopy): fixed a bug introduced by a partial fix in 8.3.2 that
	didn't set nonBlocking correctly when resetting the flags for the
	write side.  [Bug: 6261]

	* doc/ChnlStack.3:
	* doc/CrtChannel.3:
	* generic/tcl.decls:
	* generic/tcl.h:
	* generic/tclDecls.h:
	* generic/tclIO.c:
	* generic/tclIO.h:
	* generic/tclIOGT.c:
	* generic/tclInt.decls:
	* generic/tclIntDecls.h:
	* generic/tclStubInit.c:
	* generic/tclTest.c:
	* tests/iogt.test:
	* unix/Makefile.in:
	* win/Makefile.in:
	* win/makefile.vc:
	* win/tclConfig.sh.in:
	* win/tclWinChan.c:
	* win/tclWinConsole.c:
	* win/tclWinPipe.c:
	* win/tclWinSerial.c:
	* win/tclWinSock.c: Up-port of changes made in 8.3.2 to 8.4a2 code
	base.  Most of these changes relate to the rewrite of the stacked
	channel implementation, with a few config related fixes.

	Following is an asynchronous include of the applicable ChangeLog
	entries from 8.3.2.

	********************************************************
	** START OF ASYNCHRONOUS UP-PORT LOG (8.3.2 -> 8.4a2) **
	********************************************************

2000-08-07  Jeff Hobbs  <[e-mail]>

	* doc/ChnlStack.3:
	* doc/CrtChannel.3: updated the docs to be aware of the
	TCL_CHANNEL_VERSION_2 style of Tcl channels.

	* generic/tclIO.c (Tcl_CreateChannel): added assertion to verify
	that the new channel versioning will be binary compatible with
	older channel drivers.

2000-08-05  Jeff Hobbs  <[e-mail]>

	* generic/tclIOGT.c (TclChannelTransform): fixed segfault that
	would occur when transforming a channel with a proc that did not
	yet exist. (Kupries)

	* generic/tclTest.c (TestChannelCmd): added some lint init'ing of
	statePtr and chan vars.

2000-07-26  Jeff Hobbs  <[e-mail]>

	* merged core-8-3-1-io-rewrite back into core-8-3-1-branch.
	The core-8-3-1-io-rewrite branch should now be considered defunct.

	* generic/tclStubInit.c:
	* generic/tclDecls.h:
	* generic/tcl.decls:
	* generic/tcl.h:
	* generic/tclIO.c: moved the Tcl_Channel* macros from tcl.h to
	tclIO.c and made them proper stubbed functions.  These are:
	Tcl_ChannelName, Tcl_ChannelVersion, Tcl_ChannelBlockModeProc,
	Tcl_ChannelCloseProc, Tcl_ChannelClose2Proc, Tcl_ChannelInputProc,
	Tcl_ChannelOutputProc, Tcl_ChannelSeekProc, Tcl_ChannelSetOptionProc,
	Tcl_ChannelGetOptionProc, Tcl_ChannelWatchProc,
	Tcl_ChannelGetHandleProc, Tcl_ChannelFlushProc,
	and Tcl_ChannelHandlerProc.  These should be used to access the
	Tcl_ChannelType structure instead of direct pointer dereferencing.

	* tests/iogt.test: added RCS string, marked tests 2.* to be
	unixOnly due to underlying system differences.

2000-07-25 Andreas Kupries <[e-mail]>

	* tests/iogt.test: (line 866f) New tests iogt-6.[01], highlighting
 	  buffering trouble when stacking and unstacking transformations.
	  iogt-6.0 is solved, see the changes below. iogt-6.1 remains, for
 	  now, due to the perceived complexity of solutions.

	* generic/tclIO.h: (line 139f) struct Channel, added a buffer
	  queue, to hold data pushed back when stacking a transformation.

	* generic/tclIO.c:
	  (line 91f, line 7434f) New internal function 'CopyBuffer'.
	  Derived from 'CopyAndTranslateBuffer', with translation
	  removed.
	  (line 1025f, line 1212f): Initialization of new queue.
	  (line 1164f, Tcl_StackChannel): Pushback of input queue.
	  (line 1293f, Tcl_UnstackChannel): Discard input and pushback.
	  (line 3748f, Tcl_ReadRaw): Modified to use data in the push back
	  area before going to the driver. Uses 'CopyBuffer', s.a.
	  (line 4702f, GetInput): Modified to use data in the push back
	  area before going to the driver.
 	  (line 4867f, Tcl_Seek): Modified to take pushback of the topmost
	  channel in a stack into account.
	  (line 5620f, Tcl_InputBuffered): See above. Added
	  'Tcl_ChannelBuffered'. Analogue to 'Tcl_InputBuffered' but for
	  the buffer area in the channel.

	* generic/tcl.decls: New public API 'Tcl_ChannelBuffered'. S.a.

2000-07-17  Jeff Hobbs  <[e-mail]>

	* unix/Makefile.in:
	* win/Makefile.in:
	* win/makefile.vc: added tclIOGT.c to objects list to compile.

	* generic/tclStubInit.c:
	* generic/tclIntDecls.h:
	* generic/tclInt.decls: commented out internal decls for
	TclTestChannelCmd and TclTestChannelEventCmd as they were moved to
	tclTest.c.  Added new decls for TclChannelEventScriptInvoker and
	TclChannelTransform.

	* generic/tclIO.c (CloseChannel): stopped masking out of the
	TCL_READABLE|TCL_WRITABLE bits from the state flags in
	CloseChannel, instead adding extra intelligence to
	CheckChannelErrors with a new CHANNEL_RAW_MODE bit for special
	behavior when called from Raw channel APIs.

2000-07-13  Jeff Hobbs  <[e-mail]>

	* generic/tclIO.c (StackSetBlockMode): moved set of chanPtr
	outside of blockModeProc check to avoid infinite loop when
	blockModeProc was NULL (Kupries).  updated TransformSeekProc to
	not call Tcl_Seek directly (Kupries).

	* win/tclWinChan.c: updated fileChannelType to v2 channel struct
	* win/tclWinConsole.c: updated consoleChannelType to v2 channel struct
	* win/tclWinPipe.c: updated pipeChannelType to v2 channel struct
	* win/tclWinSerial.c: updated serialChannelType to v2 channel struct
	* win/tclWinSock.c: updated tcpChannelType to v2 channel struct

2000-07-11  Brent Welch	<[e-mail]>

	* win/tclConfig.sh.in (TCL_LIBS): Cleaned up unix-specific
	autoconf variables.

2000-07-11  Jeff Hobbs  <[e-mail]>

	* tests/iogt.test: made tests [345].0 not run by default as they
	were failing in the new design, but I'm not convinced that the
	returned result isn't correct.

	* generic/tclDecls.h:
	* generic/tclStubInit.c:
	* generic/tcl.decls: added Tcl_GetTopChannel C API that returns
	the current top channel of a channel stack.  Tcl_GetChannel was
	changed earlier to return the bottommost channel of a stack
	because that is the one that is guaranteed to stay around the
	longest, and this was needed to compensate for certain
	operations that want to look at the state of the main channel.
	Most channel APIs already compensate for grabbing the top, so it
	shouldn't be needed often.

	* generic/tclIO.c (Tcl_StackChannel, Tcl_UnstackChannel): Added
	flushing of buffers (Kupries), removed use of DownChannel macro,
	added Tcl_GetTopChannel public API to get to the top channel of
	the channel stack (necessary for TLS).  Rewrote Tcl_NotifyChannel
	for new channel design (Kupries).  Did some code cleanup in the
	transform code.  tclIO.c must still be broken into bits (separate
	out test code and giot code, create tclIO.h).

2000-07-10  Andreas Kupries <[e-mail]>

	* tests/iogt.test: Reverted some earlier changes as a fix by Jeff
	  revived the original and correct behaviour. IOW, the tests showed
	  a genuine error and I didn't see it :(.

	* generic/tclIO.c (Tcl_Read|Write_Raw): Changed to directly use
 	  the drivers and not DoRead|DoWrite. The latter use the buffering
 	  system, encoding and eol-translation and this wreaks havoc with
 	  the data going through the transformations. Both procedures use
 	  CheckForchannelErrors and let it believe that there is no
 	  background copy in progress or else stacked channels could not
	  be used for that.

	* generic/tclIO.c (TclCopyChannel, CopyData): Moved access to the
 	  topmost channel from the first to the second procedure to make
 	  the decision about that at the last possible time (Callbacks can
 	  change the stacking).

	test suite: failures of iogt-[345].0
	
2000-07-06  Jeff Hobbs  <[e-mail]>

	* tests/iogt.test: new tests for stacked channel stuff based off
	new 'testchannel transform|unstack' code (Kupries IOGT extension).
	* generic/tcl.decls:
	* generic/tcl.h:
	* generic/tclDecls.h:
	* generic/tclStubsInit.c:
	* generic/tclIO.c: complete rewrite of Tcl Channel code for
	stacked channels.  Channels are now designed to work in a more
	stacked fashion with a shared ChannelState data structure.

2000-06-02  Jeff Hobbs  <[e-mail]>

	* generic/tclIO.c (CloseChannel): removed the &ing out of
	(TCL_READABLE|TCL_WRITABLE) from the flags, as CloseChannel does
	this on the next pass through for the top channel, and it appeared
	to be causing hangs by not allowing the final flush.

2000-06-01  Jeff Hobbs  <[e-mail]>

	* generic/tclIO.c (CloseChannel): Rewrote CloseChannel code to
	unstack a channel during the close process.  Fixed a refcount bug
	in Tcl_UnstackChannel.  [Bug: 5623]
	(CloseChannel): further extended CloseChannel in the stacked case
	to effect certain operations on the next channel that would have
	been done in Tcl_Close.  Also added CHANNEL_CLOSED and removed
	(TCL_READABLE|TCL_WRITABLE) bits from chanPtr->flags.  Changed
	final reset of the WatchProc to check the chanDownPtr's (next)
	interestMask.

	******************************************************
	** END OF ASYNCHRONOUS UP-PORT LOG (8.3.2 -> 8.4a2) **
	******************************************************

2000-09-20  Jeff Hobbs  <[e-mail]>

	* tests/socket.test: removed doTestsWithRemoteServer constraint
	from socket-12.*.  It requires 'exec', not a remote server.
	Cleaned up some coding errors.

2000-09-20  Jennifer Hom  <[e-mail]>

	* library/tcltest1.0/pkgIndex.tcl: Updated to load tcltest 2.0.
	* library/tcltest1.0/tcltest2.tcl: New version of tcltest.  
	Cleanup of command line parsing: allows users to specify command
	line arguments through an environment variable named
	TCLTEST_OPTIONS [RFE: 3748], does not respond to incorrect
	arguments, and forces usage of entire flag name when using command
	line arguments.  Defines accessor procs for all tcltest
	variables.  Allows users to use 'return' in test scripts. Allow
	users to specify whether test files should be sourced or run in a
	separate process.  'all.tcl' code moved to tcltest package.
	'test' proc modified to use attribute-value pairs.  Allow users to
	specify what return codes, output, and errors can be compared and
	whether these values should be compared using regexp, glob, or
	exact matching.  makeDirectory & removeDirectory now operate with
	respect to temporaryDirectory [Bug: 6001].  Test results from
	tests run in slave interpreters are now included in test totals
	[Bug: 1493].  Test files that return error values are now reported.
	
	* tests/all.tcl: Added code to check for the tcltest version
	loaded; modified to figure out which tests to run based on the
	tcltest version loaded.
	* tests/tcltest.test: Modified to explicitly load version 1.0 of
	tcltest.
	* tests/tcltest2.test: New test suite for tcltest; includes all of
	the old tests plus new ones reflecting changes made for version
	2.0.
	* tests/cmdAH.test: Added singleTestInterp constraint to
	cmdAH-31.2; this test does not run if tests aren't sourced into a
	single interpreter.
	* tests/socket.test: Fixed two tests that were referencing
	variables outside of scope.
	
	* tools/tcl.wse.in: Added code to install tcltest2.tcl.

	* doc/tcltest2.n: New documentation for tcltest version 2.0.
	Removes documentation for tcltest namespace variables.  Adds
	documentation for new tcltest procs.

	* unix/mkLinks: Added code to link to tcltest2.n.

	* generic/tcl.h: Added comment to modify tcltest2.tcl as well as
	tcltest.tcl for version changes.

2000-09-19  Eric Melski  <[e-mail]>

	* generic/tclCmdMZ.c (Tcl_RegexpObjCmd): When using -all, all
	attempts after the first to match the regexp against the string
	should include the TCL_REG_NOTBOL flag, to avoid erroneously
	matching ^ in the middle of the string.  Added code to set this
	flag after the first pass through the matching loop. [Bug: 6284].

2000-09-19  David Gravereaux  <[e-mail]>

	* doc/Eval.3:  Added a note about the script argument to Tcl_Eval()
	should be in UTF-8 or risk implied conversion errors when possible
	combinations of upper ascii can be valid UTF-8 special codes.

2000-09-17  Eric Melski  <[e-mail]>

	* tests/cmdIL.test: Added a test for fix for [Bug: 6212].

	* generic/tclCmdIL.c (Tcl_LsortObjCmd): Applied patch from [Bug:
	6212], which corrected an error in the handling of the -index option.

2000-09-14  Eric Melski  <[e-mail]>

	* doc/Alloc.3: Added entries for Tcl_AttemptAlloc, Tcl_AttempRealloc.

	* doc/StringObj.3: Added entry for Tcl_AttemptSetObjLength.
	
	* generic/tclDecls.h:
	* generic/tclStubInit.c: Regen'ed stubs files from new tcl.decls.

	* generic/tcl.decls: Added stubs for the Tcl_Attempt* memory
	allocators and for Tcl_AttemptSetObjLength.

	* generic/tcl.h: Added #define's for attemptckalloc,
	attemptckrealloc, which map to the Tcl_Attempt* memory allocators.

	* generic/tclCkalloc.c: Added non-panic'ing versions of Tcl_Alloc,
	Tcl_Realloc, etc.; these are called Tcl_AttemptAlloc,
	Tcl_AttemptRealloc, etc.  These are used by
	Tcl_AttemptSetObjLength and the string obj append functions.

	* generic/tclStringObj.c: Modified string growth algorithm to use
	doubling algorithm as long as possible, and only fall back when
	that fails.  Added Tcl_AttemptSetObjLength, and modified
	AppendUnicodeToUnicodeRep, AppendUtfToUtfRep, and
	Tcl_AppendStringsToObjVA to support this.

2000-09-07  David Gravereaux <[e-mail]>

	* win/.cvsignore: changed the glob patterns a bit to exclude VC++
	project conversion backups.

	* win/tclWinPipe.c: Stage-1 bug fix for TR#2460 "exec leaks memory".
	Added more logic around the close-down of the pipe reader thread so
	as to avoid, at all cost, a TerminateThread.  Most cases with exec
	are fixed, but I don't consider 2460 done yet.  Closing down the
	read side of a pipe before the child process, doesn't really fit
	the windows model.  [BUG: 2460]

2000-09-07  Jeff Hobbs  <[e-mail]>

	* doc/trace.n: minor doc cleanup

2000-09-06  Andr