updated for 0.4.3
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8
NEWS
8
NEWS
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@ -2,6 +2,14 @@
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Recent changes to the Scheme Shell.
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10/31/96 (version 0.4.3)
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Signal handlers
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Static heap linker
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Solaris 2 on i386 support
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AIX 4 support
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HP-UX now uses dld for faster loading
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a few small networking bug fixs
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10/31/95 (version 0.4.0)
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New minor versioning introduced
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configure upgraded to autoconf-2.4 and overhauled in general
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61
RELEASE
61
RELEASE
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Scsh is one
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Scsh is two
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===========
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Scheme shell version 0.1 was released to the Net exactly a year ago today,
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Halloween 1995. We are pleased to release scsh version 0.4 to mark scsh's
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Scheme shell version 0.1 was released to the Net exactly two years ago today,
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Halloween 1994. We are pleased to release scsh version 0.4.3 to mark scsh's
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first birthday. The new release has many bug fixes, improvements and new
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features.
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@ -102,7 +102,7 @@ the GNU project for the autoconfig tool that makes this possible).
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After doing the make, you can start up a Scheme shell and try it out
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by saying
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./scshvm -o ./scshvm -i scsh/scsh.image
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./scshvm -o ./scshvm -i ./scsh/scsh.image
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See the manual for full details on the command-line switches.
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If it's harder than this, and your system is standard, we'd like to know
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@ -114,7 +114,7 @@ about it.
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There are two main ways to join in scsh-related discussion: the mailing-list
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scsh@martigny.ai.mit.edu
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and the netnews group
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alt.lang.scheme.scsh
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comp.lang.scheme.scsh
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These two forums are exactly equivalent, being bi-directionally gatewayed
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at MIT.
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@ -130,46 +130,41 @@ list for other reasons, send mail to
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======================
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We even have one of those URL things:
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http://www-swiss.ai.mit.edu/scsh/scsh.html
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http://www-swiss.ai.mit.edu/scsh/
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* New in this release
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=====================
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** New system calls.
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select, file locking, full tty device control, ptys, set-file-times,
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process timing, seek & tell. We still don't have signal handlers; with this
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exception, Scsh now has all of Posix.
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** Signal handlers
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We finally have signal handlers; with this Scsh now has all of Posix.
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** Automatic reaping of exited subprocesses.
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You may wait on a subprocess zero, one, or more times without filling
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up the kernel's process table or generating an error.
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** New delimited-input reader procedures.
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You may read input delimited by a newline character (read-line),
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a blank-line (read-paragraph), or a character from an arbitrary
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set (read-delimited). These procedures have native-code support
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for reading from Unix input sources, and are quite fast.
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** Better support for writing standalone scripts.
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It's much easier to write standalone scripts now. Scripts can use
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the new command-line switches to open dependent modules and load
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dependent source code. Scripts can also be written in the Scheme 48
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module language.
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** Static heap linker
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The static heap linker converts a Scheme 48 bytecode image as
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embodied in a .image file to a C representation. This C
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code is then compiled and linked in with a virtual machine. One
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pleasant side effect of this is reduced startup times. Another
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good thing is that immutable parts of the image can be shared
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between processes. see the script scsh/static.scm
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** Etc.
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Control of I/O buffering policy, better error reporting, bug fixes,
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here-strings, sub-second time precision, ...
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Solaris 2 on i386 support, AIX 4 support, HP-UX now uses dld for
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faster loading, a few small networking bug fixs, better error
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reporting, bug fixes, ...
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* Thanks
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========
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We thank Travis Broughton, Charlie Conklin, Jin S. Choi, Brian F. Dennis,
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Patrick May, Bill Sommerfeld, Michael Sperber, Steven L. Tamm, Ed Tobin, and
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others for bug reports, bug fixes, and comments that were incorporated into
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this release. We really appreciate their help, particularly in the task of
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porting scsh to new platforms.
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We would like to thank Michael Becker, Glenn Barry, Travis Broughton,
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Charlie Conklin, Jin S. Choi, Brian F. Dennis, Sean Doran, Kevin
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Esler, Lutz Euler, Lewis Girod, Rolf-Thomas Happe, David Hull, Steven
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L. Jenkins, Patrick May, Tod Olson, Michel Schinz, Cotton Seed, Bill
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Sommerfeld, Michael Sperber, Steven L. Tamm, Ed Tobin, Victor Zandy,
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and others for bug reports, bug fixes, and comments that were
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incorporated into this release. We really appreciate their help,
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particularly in the task of porting scsh to new platforms.
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We'd like to thank everyone else for their patience; this release seemed like
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a long time coming.
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@ -178,4 +173,4 @@ Brought to you by the Scheme Underground scsh team. Go forth and write
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elegant systems programs.
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-Olin Shivers & Brian Carlstrom
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Cambridge
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31 October, 1995
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31 October, 1996
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