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updatev25_ldos.doc
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1994-02-02
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Ldos V2.5(3) is (c) Copyright by Niklas Sjöberg
See LdosV25.DOC for information about how to register and/or send bugreports.
Changes from version 1 to version 2
-----------------------------------
o Fixed a bug in Lpp Mem. Due to some aritmethic error files >64 kb
would show a totally wrong value and you could easily crash the
machine by reserving to little memory.
o Added Lmatch - Powerful patternmatching, KS2 only.
o Added Lcrypt - Crypting of datafiles.
o Added Ldecrypt
o Added Lset Var - Routines for using environmentvariables.
o Added Lget Var - KS2 only.
o Added Ldelete Var
o Fixed 'bug' in all Ldevice-routines. Could cause an AMOS-task to still
survive when AMOS was quit. This meant that trying to start AMOS once
again directly after (often) had no effect. I still don't know if this
was due to a 'feature' of AMOS or Ldos. Rewrote most of the code, remo-
ved all stack-usage and, voilá...
o Added Lchk Data - Calculate checksum for OFS datablocks.
o Added Lchk Boot - Calculate checksum for Bootblocks.
o Added Lansi - Powerful ANSIhandling-routine.
o Added Lcat Push - Commands for handling of recursive "Lcat"-ing.
o Added Lcat Pull
o Added Lpos Freq - Force position of the filerequester.
o Added Lcust Freq - Customize size of device-field, filename-
field and number of files displayed.
o Added Lfontsize Freq - Used when the filerequster is in font-mode.
o Added Lback Hunt - Backwards hunting in buffers. Very useful in
page/line-oriented applications.
o Added Ldev First - Listing and separating of 'hard' devices, disks
and Ldev Next assignments and volumes.
o AMOS (and Ldos) now boots correctly even if some libraries can't be
opened.
o Added Lwords - Used to count words in strings. Handles multiple
spaces, commas, tabs and doublequotes. Mainly
used in conjunction with Lword.
o Added Lword - A command being able to mask out any word from a
string (without modifying it). Very much similiar
to the ARexx-command 'WORD'.
Changes from version 2 to version 2.1 (just released V2 :-( )
-------------------------------------------------------------
o Lfile Type no longer crashes when dir/filename doesn't exist.
o Added Lwild which can find out if a string contains a valid AmigaDOS
wildcard so that Lmatch won't produce an error (overflow) if it is
called with a non-wildcard string.
o Added Lset File Date which allows you to change date and time-stamps on
files and directorys. KS2 only.
Changes from version 2.1 to 2.5
-------------------------------
THANK YOU ALL WHO HAS REPORTED BUGS!
------------------------------------
Thank you for registering. It wasn't to many
but it is nice to know that Ldos/Lser helped
some of you. Also nice to receive letters and
discuss AMOS among other things.
There is a big bump in the version number but since so many lethal
bugs have been fixed I thought it was best to use a high version number
(more people wil bother to download it and this will result in more
stable programs)
o This is probably the final and last release of Ldos. It seems to
be pretty stable now. Most commands will trap user-erros, some
won't. You still have to be a bit careful with some commands
(for instance make sure there's enough room in banks etc.) but
generally Ldos seems to be quite safe now.
o Never say never. There is a possibilty that there will be further
bugfixes :-)
o Updated manual a bit. The important/new things are marked (see doc)
but there might be some new hints for some of you, not marked.
o V2.1 was a rush-release. I had just started to fix some bugs when you
guys started to register :-) Thought it would be best to ship you
the latest release, and thus had to change the revision number in order
to avoid confusion.
o Added some new examples. LineInput might be useful for all you lazy
ones ;-)) It is hard to find both meaningful and useful programs to
write..
o Lfreq can now be called like A$=Lfreq("",FLAGS) without crashing. Thanks
to Alexander Folkesson in Sweden.
o Alexander Folkesson noted (just like me..) that when you changed Dir$
Lopen etc. still worked in the directory that was AMOS start-dir. LLdir$
was thus implemented. See docs for additional information.
o Fixed the command ESC[y;xf in Lansi. I KNOW I've fixed this before, but
somehow there must have been a mix-up with some older routine several
versions ago :-( Most fullscreen- readers/editors frequently use this
command to locate the cursor. Thanks to Joao Carvalho in Portugal and
Alexander Folkesson.
o Fixed the command ESC[y;xH in Lansi to properly locate cursor at 0 if
requested. It used to stop at position 1 before. This of course also
applies to ESC[y;xf.
o Added check that makes sure that all strings that Lrexx* need are NULL-
terminated, otherwise an errormessage is produced.
o ... (didn't catch his name) reported that Ldisk Font had caused his
computer to crash. After a closer look, check for fontname of length
zero was added. Also found out that you need V36+ of diskfont.library
in order to specify a separate path for the font you wish to load.
(yet another reason to rush out an by your AmigaDOS upgrade)
It is still valid to call with a requested fontsize of zero, if anybody
wants to do that :)
o Fixed a bug in Lseek, which sometimes caused Lseek to only return the
current position, instead of moving. This only happened on files >64Kb,
and just in some cases.
o Lmatch now generates an error if your strings isn't NULL-terminated
(STRING$=STRING$+Chr$(0)) If they aren't 0-terminated this can cause
stack overflow, or a valid wildcard to be regarded as non-valid.
o Added short (but full) on-line help. See Help.DOC for more information.
o Fixed a bug in Lstamp which would subtract one day from the date if
the current year was a leap-year (all other leap-years was OK).
All date routines should work OK now. (Up to year 2099 at least)
o Now shipped with a new version of rexxhost.library. Throw loadlib into
Trashcan!
o If rexxhost.library failed to open (due to missing or user hasn't got
the whole ARexx-package (libs and server)) an error is generated when
Lrexx Make Host is called. None of the other functions will warn you since
any program that is Rexx-compatible always would set up a port first.
If you call other functions before Make Host and rexxhost has failed on
startup your computer will most likely crash!
Thanks to Micke Palm in Sweden.
o MAJOR BUG! Micke Palm reported that Ldos crashed when he exited to the
system. Somehow I forgot to remove the code which opened locale.lib
(not used in Ldos) and when all the libraries where to be closed, locale
would _only_ be closed if it wasn't open (!). This was safe under V36+
but not on lower versions of the KS. All locale code now removed.
(I tend to forget to check the easy things, sorry.)
o rexxhost.library is now closed when AMOS/compiled program is quit and can
thus be expunged later on (it is so small though). Thanks to Micke Palm
again who made me check startup/quit code (wihtout knowing about it :-).
o MAJOR BUG! Due to fault in my own includes files left open (Lopen) would
not be closed on exit. Last lock() (Lcat*) would not be de-allocated.
Now fixed.
o Lword now handles words of length 1. Used to add garbage if last word
was only one char long, or hang if first word was one char long.
o Lbstr sped up by as much as 50% on large strings. Thanks to Manuel Andre
in Belgium.
o