slang 2.2.0 released
John E. Davis
<http://www.jedsoft.org/slang/download.html> for downloading options.
It may take a day or so for the mirror sites to pick up the latest
version. The relevant MD5 sums are:
2593b390c6db81b840f6b48b0e768fa0 slang-2.2.0.tar.bz2
d98089cbb1c8ecac57e3fffee0d5db11 slang-2.2.0.tar.bz2.asc
219ae3d8de7f2f4fc52047a7902d1542 slang-2.2.0.tar.gz.asc
81cd7456c70a21937497f4b04b77433c slang-2.2.0.tar.gz
a4b091de1da12255019f8bcac86b463f 2.1.4__2.2.0.diff.bz2
bdc14ffa3bd4d1e2d9323d481e03c5af 2.1.4__2.2.0.diff.bz2.asc
67732b06e4ee929992da23230c811526 2.1.4__2.2.0.diff.gz.asc
f423c261fe523bfa86702a96ac13edf3 2.1.4__2.2.0.diff.gz
This version contains a number of new features, as well as bug fixes.
Version 2.2.0 is binary compatible with previous slang-2 versions.
More information about the library may be found at
<http://www.jedsoft.org/slang/>.
Enjoy, --John
NEWS for version 2.2
Interpreter Enhancements
========================
1. The ternary expression was added:
expression = condition ? val1 : val2
If condition is non-zero, then expression = val1,
otherwise expression = val2
2. The break and condition statements support an optional integer
that indicates how many loop levels the statement affects, e.g.,
the break statement in
while (1)
{
loop (10)
{
break 2;
}
}
will cause both loops to be terminated.
3. Multiline strings have been added:
"This is a \
multiline \
string"
`This is
another multiline
string that
does not require
a \ for continuation`
4. List_Type objects may be indexed using an array of indices
instead of just a single scalar index.
Modules
=======
1. zlib: A module that wraps the popular z compression library.
2. fork: A module that wraps the fork, exec*, and waitpid functions.
slsh/lib/process.sl utilizes this module to allow an
application to easily create subprocesses and pipelines.
3. sysconf: Module that implements interfaces to the posix
sysconf, pathconf, etc. functions.
Intrinsic Functions
===================
The following intrinsic functions have been added for 2.2:
sumsq
equivalent to sum(x*x)
expm1
More accurate version of exp(x)-1 for x near 0.
log1p
More accurate version of log(1+x) for x near 0
list_to_array
Creates an array from a list.
string_matches
A convenient alternative to string_match and string_match_nth
functions.
_close
Close an integer descriptor
_fileno
Returns the descriptor as an integer
dup2, getsid, killpg, getpriority/setpriority:
Wraps the corresponding system functions.
ldexp, frexp:
If x == a*2^b, where 0.5<=a<1.0 then (a,b)=frexp(x),
and x=ldexp(a,b).
The following functions have been enhanced:
hypot
If given a single array argument, it returns the equivalent
of sqrt(sum(X*X)).
polynom
The calling interface to this function was changed and
support added for arrays.
Misc
====
Unicode tables updated to version 5.1.
Peter J Ross
Davis <j...@jedsoft.org> wrote:
> Version 2.2.0 of the slang library is now available.
Many thanks to you and the other contributors to S-Lang for all your
work. S-Lang doesn't get the publicity associated with some other
languages. Instead, it just works, and gets more powerful with every
release.
Somebody needed to write a brief panegyric, so why not I? :-)
--
PJR :-)
slrn newsreader v0.9.9p1: http://slrn.sourceforge.net/
extra slrn documentation: http://slrn-doc.sourceforge.net/
newsgroup name validator: http://pjr.lasnobberia.net/usenet/validator
John E. Davis
wrote:
> work. S-Lang doesn't get the publicity associated with some other
> languages. Instead, it just works, and gets more powerful with every
> release.
I came across this quote that seems apropos:
"Slang is a language that rolls up its sleeves, spits on its hands and
goes to work."
-- Carl Sandburg (1878-1967), U.S. poet. New York Times (Feb. 13, 1959).
> Somebody needed to write a brief panegyric, so why not I? :-)
Thanks,
--John
ShadowTek
> I came across this quote that seems apropos:
>
> "Slang is a language that rolls up its sleeves, spits on its hands and
> goes to work."
> -- Carl Sandburg (1878-1967), U.S. poet. New York Times (Feb. 13, 1959).
That's one irritating thing I noticed about trying to find information
about s-lang from a web search: the majority of results pertain to
the definition of "slang" as referenced above.
If *everyone* who posts any online documentation would make an absolute
habit of referring to s-lang as
"s-lang" instead of "slang", it would help others to differenciate
between documents that pertain to one subject or the other.