'\" tp .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 1996, 1998, 1999, 2001-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 1997, 2006-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .ds n) aegis .ds N) Aegis .if n .nr )M 8n .if n .nr IN 8n .if n .nr )I 8n .if n .po 0 .hy 0 .if n .ad l .de r) .if !'\\*(R)'no' \{\ .PP See also .IR \*(n) (1) for options common to all \*(n) commands. .\} .. .de eB .RS .nf .ft CW .ta 8n 16n 24n 32n .. .de eE .ft P .fi .RE .. .TH "\*(n) -Integrate_Pass" 1 \*(N) "Reference Manual" .SH NAME aegis integrate pass \- pass a change integration .XX "aeipass(1)" "pass a change integration" .SH SYNOPSIS .B \*(n) .B -Integrate_Pass [ .IR option ... ] .br .B \*(n) .B -Integrate_Pass .B -List [ .IR option ... ] .br .B \*(n) .B -Integrate_Pass .B -Help .SH DESCRIPTION The .I \*(n) .I -Integrate_Pass command is used to notify \*(n) that a change has passed integration. The change is advanced from the .I "being integrated" state to the .I "completed" state. .\" ------------------------------------------------------------------------ .PS boxwid = 1 down box "being" "integrated" arrow " integrate" ljust " pass" ljust box "completed" .PE .\" ------------------------------------------------------------------------ .PP This command updates the file histories, so that future .IR aecp (1) commands may extract previous file versions from history, and so that future .IR aed (1) commands may merge out-of-date files. The history is updated using the .I history_create_command and .I history_put_command fields of the project configuration file (see .IR aepconf (5) for more information). The integrate pass will abort with an error if one of these history commands should fail, \fIe.g.\fP by running out of disk space. If this should happen, the change will remain in the .I "being integrated" state, and the integration directory is unaltered. .PP Once the history has been updated, the integration directory is renamed as the baseline directory, and the old baseline directory is deleted. .PP Once integrate pass is complete the change is no longer assigned to the current user. .SS History Tools Modify Files Many history tools (\fIe.g.\fP RCS and SCCS) can modify the contents of the file when it is committed. This usually requires the use of specific \[lq]keyword\[rq] strings, and there are usually options to turn this behavior off, but users familiar with version control tools (as opposed to configuration management systems) will often use these features. The problem is that if the commit changes the file, the source file in the repository now no longer matches the object file in the repository. .I I.e. the history tool has compromised the referential integrity of the repository. By default, a fatal error is emitted if the file is changed by the check-in, however this can be modified to a be warning or even ignored completely; see the .I history_\%put_\%trashes_\%file\fP field of .IR aepconf (5) for more information. .SS File Modification Times The modification times of all files modified since the beginning of integration (see .IR aeib (1) for more information) are updated to be since the beginning of integrate pass. The order of modification times will be preserved, however the time range will be compressed to the greatest extent possible. This ensures that subsequent development builds will notice that baseline files have changed. .PP Note that if there are many new files with all different timestamps in the integration directory, and if the number of files with different timestamps exceeds the number of seconds since the start of the integrate-pass command, Aegis may have to set file modification times into the future. .PP The \fIbuild_\%time_\%adjust\fP field of the project \fIconfig\fP file controls Aegis' behavior in this case. (See \fIaepconf\fP(5) for more information.) There are three settings: .TP 8n adjust_and_sleep This setting, which is the default, causes Aegis to sleep until the file modification times would no longer be in the future. This avoids both development build problems and integration build problems, both of which which can arise as a result "interesting" file modification times. .TP 8n adjust_only Aegis will issue a warning that the file modification times extend into the future, but will not sleep. This may cause integration build problems, particularly if you are using \fIaeintegratq\fP(1). Development builds may perform redundant builds, however \fIaet -reg\fP should not produce false negatives. .TP 8n dont_adjust This is highly inadvisable. It is provided solely for some very rare circumstances. This setting causes Aegis not to adjust the file modification times at all. This can have very unhappy side-effects, especially of the integration build was \fIbefore\fP one or more development builds; the commonest symptom being that development builds do not always cause a relink of the necessary executables, and \fIaet -reg\fP may give false negatives. It is \fBstrongly\fP recommended that you do not use this setting. .PP If you use \fIcook\fP(1), see the \fItime-adjust-back\fP flag for how to compress the time range even further. This usually makes the sleep (or the warning period) significantly shorter. .SS Notification On successful completion of this command, after the directory rename has ocurred and after the database has been updated, the \fIintegration_\%pass_\%notify_\%command\fP field of the project attributes is run, if set. See \fIaepattr\fP(5) and \fIaepa\fP(1) for more information. This command is run as the project owner. .PP Some compilers bury absolute path names into object files and executables. The renaming of the integration directory to become the new baseline breaks these paths. The above command is passed an environment variable called AEGIS_\%INTEGRATION_\%DIRECTORY so that the appropriate symlink may be placed, if desired. .PP Other commands run by this command include the \fIhistory_\%create_\%command\fP, \fIhistory_\%put_\%command\fP and \fIhistory_\%query_\%command\fP fields of the project \fIconfig\fP file. See \fIaepconf\fP(5) for more information. .\" .\" aegis - project change supervisor .\" Copyright (C) 1996, 1998, 1999, 2002, 2006-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .SH THE BASELINE LOCK The baseline lock is used to ensure that the baseline remains in a consistent state for the duration of commands which need to read the contents of files in the baseline. .PP The commands which require the baseline to be consistent (these include the .IR aeb (1), .IR aecp (1) and .IR aed (1) commands) take a baseline .I read lock. This is a non-exclusive lock, so the concurrent development of changes is not hindered. .PP The command which modifies the baseline, .IR aeipass (1), takes a baseline .I write lock. This is an exclusive lock, forcing .IR aeipass (1) to block until there are no active baseline read locks. .PP It is possible that one of the above development commands will block until an in-progress .I "\*(n) -Integrate_PASS" completes. This is usually of short duration while the project history is updated. The delay is essential so that these commands receive a consistent view of the baseline. No other integration command will cause the above development commands to block. .PP When \*(n)' branch functionality is in use, a read (non-exclusive) lock is taken on the branch baseline and also each of the "parent" baselines. However, a baseline write (exclusive) lock is only taken on the branch baseline; the "parent" baselines are only read (non-exclusive) locked. .SS The History Lock Where a project has a number of branches active simultaneously, it is possible for independent integrate pass commands for different branches to be issued very close together. The is an exclusive .I "history lock" taken by integrate pass to ensure that only one branch is updating the file history at a time, thus preventing history file corruption. .\" .\" aegis - project change supervisor .\" Copyright (C) 1996, 1999, 2002, 2005-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .SH TEST CORRELATIONS The \[lq]\*(n) -Test -SUGgest\[rq] command may be used to have \*(n) suggest suitable regression tests for your change, based on the source files in your change. This automatically focuses testing effort to relevant tests, reducing the number of regression tests necessary to be confident that you have not introduced a bug. .PP The test correlations are generated by the \[lq]\*(n) -Integrate_Pass\[rq] command, which associates each test in the change with each source file in the change. Thus, each source file accumulates a list of tests which have been associated with it in the past. This is not as exact as code coverage analysis, but is a reasonable approximation in practice. .PP The .IR aecp (1) and .IR aenf (1) commands are used to associate files with a change. While they do not actively perform the association, these are the files used by .IR aeipass (1) and .IR aet (1) to determine which source files are associated with which tests. .SS Test Correlation Accuracy Assuming that the testing correlations are accurate and that the tests are evenly distributed across the function space, there will be a less than \fI1/number\fP chance that a relevant test has not been run by the \[lq]\*(n) -Test -SUGgest \fInumber\fP\[rq] command. A small amount of noise is added to the test weighting, so that unexpected things are sometimes tested, and the same tests are not run every time. .PP Test correlation accuracy can be improved by ensuring that: .TP 2m \(bu Each change should be strongly focused, with no gratuitous file inclusions. This avoids spurious correlations. .TP 2m \(bu Each item of new functionality should be added in an individual change, rather than several together. This strongly correlates tests with functionality. .TP 2m \(bu Each bug should be fixed in an individual change, rather than several together. This strongly correlates tests with functionality. .TP 2m \(bu Test correlations will be lost if files are moved. This is because correlations are by name. .PP The best way for tests to correlate accurately with source files is when a change contains a test and exactly those files relating to the functionality under test. Too many spurious files will weaken the usefulness of the testing correlations. .\" .\" aegis - project change supervisor .\" Copyright (C) 1998, 2005-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .SH METRICS Aegis is capable of recording metrics as part of the file attributes of a change. This allows various properties of files to be recorded for later trend analysis, or other uses. .PP The specific metrics are not dictated by Aegis. It is expected that the integration build will create a metrics file for each of the source files the change. These metrics files must be in the format specified by \fIaemetrics\fP(5). .PP The name of the metrics file defaults to \[lq]\fIfilename\fP\fB,S\fP\[rq], however it may be varied, by setting the \fImetrics_\%filename_\%pattern\fP field of the project \fIconfig\fP file. See \fIaepconf\fP(5) for more information. .PP If such a metrics file exists, for each source file in a change, it will be read and remembered at integrate pass time. If it does not exist, Aegis assumes there are no relevant metrics for that file, and proceeds silently; it is not an error. .SH OPTIONS The following options are understood: .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2003, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n \fB-Change\fP \fInumber\fP This option may be used to specify a particular change within a project. See \fIaegis\fP(1) for a complete description of this option. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B -Help .br This option may be used to obtain more information about how to use the .I \*(n) program. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B -List .br This option may be used to obtain a list of suitable subjects for this command. The list may be more general than expected. .\" .\" aegis - project change supervisor .\" Copyright (C) 1992, 1993, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B -Not_Logging .br This option may be used to disable the automatic logging of output and errors to a file. This is often useful when several \*(n) commands are combined in a shell script. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n \fB-Project\fP \fIname\fP This option may be used to select the project of interest. When no .B -Project option is specified, the .I AEGIS_PROJECT environment variable is consulted. If that does not exist, the user's .I $HOME/.aegisrc file is examined for a default project field (see .IR aeuconf (5) for more information). If that does not exist, when the user is only working on changes within a single project, the project name defaults to that project. Otherwise, it is an error. .\" .\" aegis - project change supervisor .\" Copyright (C) 2005-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n \fB\-REAson\fP \fItext\fP This option may be used to attach a comment to the change history generated by this command. You will need to use quotes to insulate the spaces from the shell. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2002, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B -TERse .br This option may be used to cause listings to produce the bare minimum of information. It is usually useful for shell scripts. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2002, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B -Verbose This option may be used to cause \*(n) to produce more output. By default \*(n) only produces output on errors. When used with the .B -List option this option causes column headings to be added. .\" .\" aegis - project change supervisor .\" Copyright (C) 1998, 2006-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .TP 8n .B \-Wait This option may be used to require \*(N) commands to wait for access locks, if they cannot be obtained immediately. Defaults to the user's .I lock_wait_preference if not specified, see .IR aeuconf (5) for more information. .TP 8n .B \-No_Wait This option may be used to require \*(N) commands to emit a fatal error if access locks cannot be obtained immediately. Defaults to the user's .I lock_wait_preference if not specified, see .IR aeuconf (5) for more information. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 2006-2008 Peter Miller. .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .r) .PP All options may be abbreviated; the abbreviation is documented as the upper case letters, all lower case letters and underscores (_) are optional. You must use consecutive sequences of optional letters. .PP All options are case insensitive, you may type them in upper case or lower case or a combination of both, case is not important. .PP For example: the arguments "-project, "-PROJ" and "-p" are all interpreted to mean the \fB-Project\fP option. The argument "-prj" will not be understood, because consecutive optional characters were not supplied. .PP Options and other command line arguments may be mixed arbitrarily on the command line, after the function selectors. .br .ne 4 .PP The GNU long option names are understood. Since all option names for .I \*(n) are long, this means ignoring the extra leading '-'. The "\fB--\fIoption\fB=\fIvalue\fR" convention is also understood. .SH RECOMMENDED ALIAS The recommended alias for this command is .nf .ta 8n 16n csh% alias aeipass '\*(n) -ipass \e!* -v' sh$ aeipass(){\*(n) -ipass "$@" -v} .fi .SH ERRORS It is an error if the change is not assigned to the current user. .br It is an error if The change is not in the .I "being integrated" state. .br It is an error if there has been no successful .I "'\*(n) -Build'" command for the integration. .br It is an error if there has been no successful .I "'\*(n) -Test'" command for the integration. .br It is an error if there has been no successful .I "'\*(n) -Test -BaseLine'" command for the integration. .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1993, 1995, 1997, 2004, 2006-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .SH EXIT STATUS The .I \*(n) command will exit with a status of 1 on any error. The .I \*(n) command will only exit with a status of 0 if there are no errors. .SH ENVIRONMENT VARIABLES See \fIaegis\fP(1) for a list of environment variables which may affect this command. See \fIaepconf\fP(5) for the project configuration file's \fIproject_\%specific\fP field for how to set environment variables for all commands executed by Aegis. .br .ne 1i .SH SEE ALSO .TP 8n .IR aeib (1) begin integration of a change .TP 8n .IR aeifail (1) fail integration of a change .TP 8n .IR aemeasure (1) simple file metrics .TP 8n .IR aemetrics (5) metrics values file format .TP 8n .IR aeuconf (5) user configuration file format .\" .\" aegis - project change supervisor .\" Copyright (C) 1991-1995, 1997, 2006-2008 Peter Miller .\" .\" This program is free software; you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation; either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see .\" . .\" .br .ne 2i .SH COPYRIGHT .ds v) 4.24.3 .ds V) 4.24.3.D001 .ds o) 0 .ds p) 4.25 .ds u) 4.24 .ds Y) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 \*(n) version \*(V) .br .if t .ds C) \(co .if n .ds C) (C) Copyright \*(C) \*(Y) Peter Miller .PP The \*(n) program comes with ABSOLUTELY NO WARRANTY; for details use the '\fI\*(n) -VERSion License\fP' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the '\fI\*(n) -VERSion License\fP' command. .br .ne 1i .SH AUTHOR .TS tab(;); l r l. Peter Miller;E-Mail:;millerp@canb.auug.org.au \f(CW/\e/\e*\fR;WWW:;http://www.canb.auug.org.au/~millerp/ .TE