-*- mode: text; mode: fold -*-
Changes since 2.0.6
1. src/slmath.c: if a double precision array was passed to nint, it
was treated as a single precision one leading to a core dump.
2. src/sldisply.c: The Is_Fg_BGR variable was re-introduced and a typo
affecting it was corrected.
3. src/slinclud.h: Do not include malloc.h on FreeBSD (Renato Botelho
garga at freebsd, org).
4. doc/tm/cslang.tm: Changed a couple of occurances of "unsigned char"
to "SLtype". (Doug Burke dburke at head, cfa, harvard, edu)
5. doc/tm/rtl/list.tm: Documentation changed to indicate that the
third parameters to list_append/insert are optional. (Doug Burke).
6. src/slwcwidth.c: Added a new function to the API called
SLwchar_set_wcwidth_flags. This may be used to force
SLwchar_wcwidth to 1 for double width characters. Such a feature
is sometimes needed for fixed fonts that treat single and double
width characters the same.
7. slsh/lib/slshrl.sl: The readline-massage hook was interpreting
lines beginning with a '.' as RPN.
8. slsh/lib/sldb*.sl: The debugger was not stopping upon errors
generated by the deprecated function verror.
9. src/slparse.c: "++()" was flagged by the parser as an error, but no
error message for it was being generated.
10. src/slang.h: #if HAVE_LONG_LONG changed to #ifdef HAVE_LONG_LONG
11. src/slsmg.c: Return right away if SLsmg_write_chars is told to
write 0 characters. Also a bug fixed in the logic of this routine
involving the test for overwriting the second half of a double
width character.
12. src/slrline.c: Finished the UTF-8 support by the readline functions.
13. slsh/*.c: Added slsh_get/set_prompt_hook functions for setting of
the slsh command-line prompt. (Douglas Burke)
14. src/sltoken.c: Added additional string representations for tokens
so that some error messages will not appear to be so cryptic.
15. src/sltoken.c: _pSLparse_error: Use the line number of the input
stream if the linenumber associated with a token is unknown.
16. src/slparse.c: Inline arrays and lists are allowed to have a
trailing comma, e.g., [1,2,] is the same as [1,2].
17. doc/tm/rtl/type.tm: typo in example for atof corrected (Doug
Burke).
18. Improvements for building on DOS/Windows (Mike Noble):
* The various mkfiles/makefile.all now include a clean: target
* The top-level mkfiles directory now includes 3 new files:
A build.sh script, which auto-generates the Makefiles
(using mkmake) and commences a build, similar to the
build.bat script which was already there (and which I
tweaked slightly).
Seed makefile.dos and makefile.sh scripts, which get copied
to the root of the S-Lang distro when either build.sh or
build.bat are run. This makes it easier to build
everything at once, or clean, etc, from the top of the
distro.
* A few new paragraphs in INSTALL.pc
* In the various mkfiles/makefile.all, "CFLAGS +=" changed to
"CFLAGS =" to avoid nmake 1.5 problems.
* Simplified the module build targets in modules/makefile.all,
and made it much easier to add new modules in the future.
19. Added module support for cygwin. This involved a few minor
changes to the Makefiles and aclocal.m4 (Mike Noble)
20. slsh/slsh.c: Brief copyright message displayed when started up in
interactive mode.
21. src/slarray.c: Improved support for mixed-type inline arrays:
NULLs supported (["foo", NULL]) where it makes sense, and
type-promotion rules are used to determine the resulting type when
concatenating mix-type arrays (["foo"], NULL, ["bar\0"]);
22. src/slrline.c: SLrline_close was not freeing the history creating
a memory leak.
23. src/keywhash.c: Removed obsolete and unused "do_while" keyword,
and regenerated keywhash.c
24. doc/tm/slang.tm: List of keywords updated to reflect the actual
keywords used.
25. modules/mkfiles/makefile.all: Updated VC-specific LINK_CMD macro
to support the changes outlines in 18 above (Dino Sangoid).
26. src/slang.c,src/slboseos.c: Added hooks for entering and leaving a
function. The beginning-of-statement and end-of-statement hooks
were found insufficient to support a debugger support. See the
documentation for _bofeof_info for more information.
27. slsh/lib/sldbcore.sl: Modified to use the bof/eof hooks introduced
in #26.
28. Various documentation tweaks.
29. src/slboseos.c: Changed the beginning-of-function handler to
include the filename.
30. src/slsh/lib/require.sl: Removed the "feature not provided" message.
31. src/slrline.c: Tabs were not being expanded properly when the
window was horizontally scrolled. Also, the last column of the
display is not used in case the terminal has automatic margins.
32. lib/sldbcore.sl: The debugger's "finish" command was not quite
working as it should have.
33. lib/sldbcore.sl: Added an sldb_initialize function that can be
overridden by the debugger.
34. src/slposio.c: Made changes to allow arbitrary objects to be
attached to file descriptors.
35. src/sl*tty.c: Set SLKeyBoard_Quit to 0 in the init_tty routines.
36. modules/socket-module.c: A new module that defines various socket
functions. This required additions to the configure script and
related files.
37. src/slstrops.c, slsh/readline.c: Removed statements that were never
reached.
38. src/sltypes.c: foreach(X) where X is String_Type produces a
sequence of UChar_Type objects. This is consistent with
typeof(X[i]). Also added "using" forms to specify char or
byte-semantics: foreach (X) using ("bytes"|"chars"). The default
is byte semantics. Updated the corresponding docs.
39. src/slang.h: Added SLang_push/pop_wchar macros.
40. src/sldisply.c: This file was failing to compile with Kanji
support enabled. Kanji is unsupported in slang-2.
41. src/slcurses.*: Alt-character set handling was not working. Once
again, I strongly encourage you to modify your programs to use the
native SLsmg routines instead of the partial curses emulation hacks.
42. slsh/lib/sldbsock.sl: New file to implement socket-based debugger.
43. slsh/scripts/sldb: Added --pid <pid> option for debugging a
separate process via the socket-based debugger interface.
44. src/slang.c: If a try-finally block contained a return statement,
the function would sometimes continue after the finally block.
45. modules/termios-module.c: Added tcget/seti/ospeed functions for
setting baudrates of termios structures. Also added CRTSCTS
constant to the module.
46. src/slclass.c: If an application calls SLang_pop_mmt with a
non-MMT type specified, a SL_Application_Error exception will be
generated.
47. src/slang.c: A misplaced return statement was introduced by #44
above.
48. src/slparse.c: Allow the "finally" keyword to be followed by a
colon, e.g., try foo; finally: bar;
49. src/sltoken.c,slang,c: "Dollar" and long-longs were not being properly
handled in byte-compiled files.
50. src/test/Makefile: Changes were made to test byte-compiled
versions of the test scripts.
51. modules/socket-module.c: added #include <time.h> to get it to
compile on mac osx.
52. src/slmath.c: The data field was not properly used by the nint function.
53. modules/select-module.c: Call SLang_handle_interrupt when the
select system calls gets interrupted.
54. src/slposio.c: Add == and != operators to FD_Type objects so that
fileno(stdin)==fileno(stdin) works as expected.
55. src/slarray.c: wherefirst and wherelast were not working with
empty arrays.
56. src/slmisc.c: SLang_guess_type was failing on numbers containing a
leading '+' sign.
57. src/slimport.c: The name of the SLANG_MODULE_PATH environment
variable may be changed in src/Makefile.
58. src/slrline.c: Added a delete-to-beginning-of-line (delbol)
function and bound it to ^U.
59. slsh/Makefile.in: $(CFLAGS) added to the final link line. (Nelson
H. F. Beebe)
60. src/slmath.c: Avoid the use of function pointers to standard math
functions to support a wider range of compilers.
61. autoconf/aclocal.m4: IRIX compilers do not require "-K pic"
62. autoconf/configure.ac: Probe for socklen_t.
63. */Makefile.in: Added support for the $LIBS env variable
64. src/slerr.c: Added fflush(stdout) to SLang_vmessage.
65. slsh/lib/sldbcore.sl: The eof hook was improperly handling the
debugger step.
66. src/slarray.c: Optimization added for index-array operations on
double, float, and int arrays.
67. src/slarith.c: Optimization added for boolean operations between
[U]Char_Types.
68. lib/structfuns.sl: Typo in the documentation corrected (Doug Burke)
69. lib/*.sl, lib/tm/*.tm, lib/help/*.hlp: Documentation for the
functions in *.sl has been moved to *.tm and integrated into the
help system.
70. src/slwclut.c: a missing "default" label in a switch statement was
causing invalid character class specifiers to pass.
71. src/slang.c: Optimization added for struct method calls. In
addition, linenumber information was propagated for such function
calls to permit better interaction with the debugger.
72. slsh/lib/profile.sl: profile_on was not being called with an
argument.
{{{ Previous Versions
Changes since 2.0.5
1. src/slmath.c: nint was returning the wrong value for numbers 0.5<=x<1.
2. src/slarrfuns.c: sum(Double_Type[0,0],1) was generating an access
error.
3. src/*.c: Removed some unused variables.
4. src/slcommon.c: '=' instead of '==' was being used in the
utf8_enable function.
5. doc/tm/*.tm: corrected some documentation typos (Nelson Beebe,
beebe at math, utah, edu).
7. src/sltime.c: times function was returning a structure containing
incorrect values (cstawarz at head, cfa, harvard, edu).
8. src/sldisply.c: Writing a multi-byte character to the lower-right corner
of terminals with automatic margins was not working (Vladimir
Nadvornik nadvornik at suse, cz).
9. src/slwclut.c: Allow \\^ in character set specifications to
represent a literal '^'. See the documentation for strtrans for
more information.
10. src/slcommon.c: Some systems that have nl_langinfo do not have
CODESET. The configure script now checks for both.
11. autoconf/Makefile.in: Added ".PHONY" and "check" targets.
12. src/slstrops.c: "%c" in an sprintf style format descriptor made to
work with wide-character arguments. It is nolonger necessary to
use "%lc".
13. src/slmisc.c: Semantics of "\x{...}" changed to be more useful
when the interpreter is running in non-UTF8 mode. Previously,
"\x{...}" always expanded to a UTF-8 encoded string, regardless of
the UTF-8 mode. Now, in non-UTF8 mode, \x{...} will expand to a
UTF-8 encoded string when "..." consists of 3 or more characters,
and for less than 2 characters, it specifies a byte. The behavior
in UTF-8 mode has not changed: \x{...} always returns a UTF-8
encoded string. The upshot is that "\x{FF}" will produce the byte
0xFF when not in UTF-8 mode, and the 2 byte UTF-8 encoding when
run in UTF-8 mode. "\x{FFF}" will expand to the apropriate UTF-8
encoding regardless of the mode. Note that the behavior of the
non-brace form such as \xAB has not changed--- the result is still
a single byte 0xAB.
14. src/slmisc.c: \u{...} may be used in string literals to specify a
unicode character, regardless of the UTF-8 mode (on or off).
Previously, \x{...} had this behavior. (See #13).
15. src/test: Tests are run in both UTF-8 and non-UTF-8 modes.
16. src/slvideo.c: djgpp version of write_attributes was broken (Gisle
Vanem giva at bgnett, no)
17. slsh/readline.c: Call SLang_handle_interrupt if a read was
interrupted by a signal. This will ensure that signal handlers
will execute at the prompt.
18. src/sldisply.c: Added a check for buffer-overflow by tgetstr on TERMCAP
based systems.
19. autoconf/: Updated config.sub and config.guess
20. slsh/readline.c: Added slsh_readline_noecho function. Also, strip
trailing newline from string returned by slsh_readline* when in
--no-readline mode.
Changes since 2.0.4
1. slsh/slsh.c: Error messages were not being printed if an error
occured during an atexit hook.
2. src/slstrops.c: Use _pSLstring_bytelen instead of strlen to get the
number of bytes.
3. src/slstring.c: Several tweaks were made for faster string handling.
4. src/slparse.c: A negative integer literal raised to a power was not
being properly parsed.
5. doc/tm/cslang.tm: Documentation updated to reflect the changed
SLang_pop_double API, as well as other C API documentation
tweaks (Doug Burke).
6. doc/tm/rtl/type.tm: Documentation for "integer" changed to indicate
that integer throws a SyntaxError exception if the string does not
have a valid syntax. (Joshua Kempner jkempner at bowdoin, edu)
7. src/slmath.c: Added nint (round to the nearest integer) intrinsic.
8. src/slarray.c: NULL arguments to array_map were not getting
converted to arrays of NULL.
9. src/slang.h: Added SLclass_set_length_function for setting the
length method of application-defined classes.
10. src/slang.ver: A versioning script is used to restrict the
visibility of the _pSL* symbols. (Alastair McKinstry
mckinstry at computer, org)
11. slsh/slsh.c: Ignore SIGPIPE.
12. src/slutf8.c: If SLutf8_decode is passed an inproperly encoded
UTF-8 sequence, then set the target of the SLwchar_Type pointer to
the ascii value of the byte, in addition to returning NULL.
13. src/slposdir.c: Added "access" intrinsic.
14. src/slsmg.c: Fixed a buffer-overflow in the SLsmg_write_chars
function.
15. src/slsig.c: A missing return statement was causing sigsuspend to
fail when called with 0 arguments.
16. src/slarray.c: Added wherefirst and wherelast intrinsics.
17. src/slang.c: Inline attribute removed from some functions that
were failing to be inlined by the compiler.
19. src/slstdio.c: SLang_get_fileptr added to permit an application to
get the FILE* object associated with a SLANG_FILE_PTR_TYPE.
20. src/slang.c: It was failing to compile when
SLANG_HAS_DEBUGGER_SUPPORT was set to 0.
21. src/sltime.c: strftime intrinsic added.
Changes since 2.0.3
1. slsh/scripts/svnsh: Empty lines were not being handled.
2. src/slutf.c: Incorrect bracketing in the IS_ILLEGAL_UNICODE macro.
(johannes figgen at flextronicssoftware, com)
3. src/sllist.c: A prev link was not always getting set by the list_insert
function.
4. doc/tm/rtl/eval.tm: Tweaked the documentation for the eval function
(Mike Noble mnoble at space, mit, edu)
5. modules/png.sl: Make sure the scale factor is a float and not an int.
6. src/sltime.c: The tic/toc functions were changed to use
gettimeofday or its equivalent. This change results in greater resolution
for these interval timers, but not necessarily greater accuracy.
Also, previously the tic/toc functions measured the time used by
the current process but now they measure elapsed time. The old
behavior is still available via _tic/_toc.
7. slsh/lib/profile.sl: The above change made it possible to create a
more accurate profiling tool. The functions in this file are used
by the slsh/scripts/slprof profiling tool.
8. src/slarith.c: Missing break statement caused signed long long
values to be printed as unsigned long longs.
9. tm/doc/cslang.tm: Two small typos corrected (Alastair McKinstry
mckinstry at computer, org)
10. autoconf/aclocal.m4: Support for GNU Hurd and GNU KFreeBSD /
KNetBSD systems (Alastair McKinstry)
11. src/slstrops.sl: Added support for long long to the sprintf
intrinsic function (e.g., sprintf ("%lld", 1234LL))
12. modules/png-module.c: 8 bit gray scale images were being written
out as 8 bit images with an alpha channel. Bug fixed and version
bumped to 0.1.1.
Changes since 2.0.2
1. src/slang.c: Optimization of multiple assignment statements involving
binary operators was generating bad byte-code causing a run-time
error. In order to see this effect, code such as
w = 3*t+s;
x = 2*z+1;
y = z*z;
would have to be written as a as multiple assignment statement:
(w,x,y) = (3*t+s, 2*z+1, z*z);
2. src/sltypes.c: Added SLang_push_function to complement
SLang_pop_function.
3. src/slkeymap.c: SLkm_define_slkey implemented. It was already
declared in slang.h but never implemented until now.
Changes since 2.0.1
1. src/slang.h: Forgot to bump SLANG_VERSION to 20001.
Changes since 2.0.0
1. modules/png.sl: png_gray_to_rgb was missing an assignment after
normalization.
2. slsh/lib/print.sl: Ignore SIGPIPE while in the pager.
3. src/slang.c: SLang_peek_at_stack1_n was broken.
4. src/slsmg.c: If the cursor is left outside the visible display area
during SLsmg_refresh, then "clip" its position to the visible area.
5. src/slarray.c: Typo (= vs ==) was corrected in the array_eqs_method
function. (Dino Sangoid)
6. src/slmath.c: Use IS_NAN macro instead of isnan (Dino Sangoid)
7. src/mkfiles/makefile.all: Added dll support for the mingw32 build
(Marko Mahnic; marko mahnic at email, si)
8. src/slang.c: Removed a while loop that did nothing. (Dino Sangoid)
9. src/mkfiles/makefile.all, src/slconfig.h, src/slposdir.c: Support
added for 16 bit systems using watcom C (Dino Sangoid)
10.doc/tm/*.tm: Some spelling errors corrected (Mike Noble)
11. src/slang.c, src/slnspace.c: There was a conflict between private
and static namespaces that arose when _implicitly_ loading a file
into a specified namespace. Resolving this issue involved the
complete separation of the private and static namespaces.
12. The _get_frame_info function now provides the name of the active
namespace.
13. src/sldisply.c: Line drawing characters were not activated when
xterm was started in locale mode. Escape sequences were tweaked.
(Alexander E. Patrakov, patrakov at ums, usu, ru)
14. slsh/lib/print.sl: If an element of an array of structs is NULL
then print the element as NULL.
15. modules/varray.c: typo was preventing mmapping of a file from
working properly.
16. slsh/lib/*.sl: changed "static" to "private" to protect the
functions when loaded into a namespace.
17. autoconf/configure.ac: Add tests for atoll and strtoll. Some
versions of MacOS X do not have atoll.
18. modules/png.sl: Added png_get_colormap_names and changed
examples/colormap.sl to use it.
19. src/slarrfun.c: Ignore _NaNs in min/max functions.
20. slsh/lib/sldbcore.sl: Added several aliases to the debugger:
b(reak), c(ont), d(elete), h(elp), l(ist), n(ext), p(rint),
pp(rint), q(uit), s(tep)
Changes since 2.0.0 pre-release 8
1. src/slang.c: Under some conditions, no line number information was
being reported for stack underflow errors.
2. lib/sldbcore.sl: Missing return value was causing a stack-underflow
error. (Paul Boekholt)
3. src/slmisc.c,src/sltoken.c: In UTF-8 mode, an escaped sequence of
the form "\xAB" is interpreted as a byte. Previously, it was
interpreted as a wide character. To encode a wide character using
an escape sequence, use braces ("\x{AB}").
4. src/slstd.c: The putenv function now throws an OSError exception
upon failure. Previously it threw a RunTimeError.
5. src/slerr.c: Added NamespaceError exception and changed some of the
namespace specific function to throw this exception instead of a
RunTimeError exception.
6. src/slang.h: SL_Domain_Error was missing from the file.
7. src/slerrno.c: If errno_string is called without an errno argument, the
current value of _pSLerrno_errno will be used.
9. src/sltime.c: The "time" functions were changed from using an
unsigned long to a long to match time_t.
10.src/slvideo.c: Corrected a typo in the non-Unix/non-VMS specific
SLtt_utf8_enable function.
Changes since 2.0.0 pre-release 7
1. slsh/lib/structfuns.sl was missing from the distribution.
2. src/sldisply.c: SLtt_Blink_Mode set to have a default of 0 instead
of 1.
3. slsh/slsh.c: Add -t option, which causes slsh_main (if defined) to
not be executed.
4. src/sltoken.c:SLang_load_object: Do not reset the line_num field.
This gives the line numbers in slsh interactive mode some meaning.
5. src/slsh/lib/slshrl.sl: Usage message for "exit"
6. src/slvideo.c: SLtt_utf8_enable function added
7. src/slexcept.c: If tracebacks are turned off, make sure that the
line number field in exception objects is meaningful.
8. src/slang.c: SLang_peek_at_stack1_n was not working. (Mike Noble
mnoble at space, mit, edu).
9. src/slang.c: Small optimization tweak when dealing with a single
array index.
10. src/slposio.c: Jorge Gonzalez, jgonzalez at atsautomation, com
found and fixed a leak in the "read" function.
11. modules/png-module.c: New module to read/write png files. It
includes about 20 colormaps. See examples/colormap.sl.
12. src/slclass.c: SLang_get_int_type returns the SLtype for the
integer with the specified number of bits.
13. src/slarray.c: array_shape intrinsic function added as an
alternative to array_info for getting the dimensionality of an
array.
14. src/slospath.c: new intrinsic: path_basename_sans_extname
15. src/, slsh/: A number of win32 tweaks to support dynamic linking under
windows. (Dino Sangoid; sangoid at lloydadriatico, it).
16. src/slstruct.c: Check for duplicate fields in a struct. (Doug
Burke; burke at cfa, harvard, edu).
17. src/slarrfun.c: New matlab-like functions "any" and "all". (Doug
Burke; burke at cfa, harvard, edu).
18. src/slang.c: Calling SLang_restart will also clear the slang error
state. There is no need to call SLang_set_error(0) after calling
SLang_restart.
19. src/sltoken.c: Allow the evaluation of '#if (expr)' when created a
pre-parsed file (.slc).
20. src/slang.c: If a function defined in the currently loading
file is to also be autoloaded into another namespace, and that
namespace is not current one, then make sure an anonymous
namespace is being used.
21. src/slang.c, slboseos.c: Experimental support for a debugger. New
functions:
_set_frame_variable
_get_frame_variable
_get_frame_depth
_get_frame_info
_use_frame_namespace
22. slsh/lib/sdb*.sl: An experimental source code debugger based upon
a Dino Sangoid's jed debugger.
23. src/slang.c: The "_pSL" prefix was dropped from a few file-local
variables. Also calls to _pSLclass_push_* were changed to calls to
file-local specific versions of the functions.
24. src/slsh/mkfiles/: A couple of win32 icons for slsh were provided
by Marko Mahnic (marko. mahnic at email, si)
25. src/slarray.c: If typeof(t)==DataType_Type, then put back the old
behavior of array creation via t[N].
26. doc/tm/slang.tm: The slang manual has been updated for version 2,
with numerous typos corrected.
27. slsh/scripts/sldb: New script that invokes the debugger.
28. src/slstruct.c: Added _is_struct_type. This works like
is_struct_type excepted if the object is an array, it returns
information about the array elements.
29. slsh/lib/print.sl: The "print" defined by this file may be used to
print arrays, structures, lists, etc. It is also used by sldb's
pprint command.
Changes since 2.0.0 pre-release 6
1. The _traceback variable was being ignored. As a result, error
messages were more verbose than requested.
2. I fixed the negative indexing issues and made such indexing much
more consistent. Before it was possible to index the first through
last elements of an array using the index [0:-1]. However, there
were too many inconsistencies associated with this feature.
Negative indices are still supported but in a much more consistent
fashion. See UPGRADE.txt for more details.
Changes since 2.0.0 pre-release 5
0. src/slang.h+others: I created a new typedef in slang.h representing
array indices (SLindex_Type). This is used in the SLang_Array_Type
structure. Previously the affected fields were ints. For backward
compatibility, SLindex_Type is defined as an int. This change was
made with an eye to the future when 64 bit platforms become more
common with physical memory such that one wants to index arrays
with more than MAX_INT elements per dimensions (the current
limit).
1. src/slarith.c: missing comma in a code block specific to 64 bit systems
prevented compilation.
2. src/: OS/2 specific patches.
3. src/mkfiles/makefile.all: Added some ranlib commands for the mingw32,
cygwin, and EMX compilers.
4. */mkfiles/makefile.all: Add TOOL_PREFIX variable to support
cross-compilation.
5. slsh/slsh.c: win32 specific changes to get path to slsh.rc via
the GetModuleFileName function (DINO SANGOI (SANGOID at lloydadriatico, it)).
6. slsh/mkfiles/makefile.all: Corrected the values of the SLANGINC and
SLANGLIB variables.
7. src/slstd.c: atoll intrinsic was not getting defined. (Doug Burke
(dburke at head-cfa, cfa, harvard, edu)).
8. src/test/longlong.sl: Add test for atoll (Doug Burke)
9. src/slerr.c: SLang_set_error: Allow an error to be cleared but not
changed to another value in the presence of an error.
10. src/slarray.c: Allow a 1-d integer array to always address a
multidimensional array. Not just "sometimes".
11. slsh/lib/arrayfuns.sl: local variable a was multiply defined in
reverse function.
12. src/slpack.c: Add support for long long and 64 bit types. Also
'z' specifier added as an alternative to 's'.
13. src/slstdio.c: Previously, fread(&v,Char_Type,n,fp) would
assign a BString_Type object to v if n>1 or Char_Type if n==1.
Now, for consistency it returns Char_Type[n] for n > 1. To get
the value as a binary string, use fread_bytes. This change is not
backwards compatible and may break code that relies upon the old
behavior. See UPGRADE.txt for additional information.
14. src/slrline.c: A silly typo prevented multiple instances of
readline objects.
15. slsh/: New intrinsic: slsh_readline. This allows a script to get
input from the user using the readline interface.
16. slsh/scripts/svnsh: A simple shell for interacting with an SVN
repository.
17. src/slang.h: The SLANG_MODULE macro was incorrectly defined when
compiled with C++.
18. src/slkeymap.c: A small memory leak was found by Gilles Mazoyer
pgid at free, fr.
19. src/slarith.c,...: Some problems were found on 64bit big-endian
machines. Correcting this involved adding new functions to the
interface long and short intrinsic constants.
20. src/slang.c: Inside a finally block, loops were not working if the
exception handler issued a break or return statement.
21. src/slrline.c: On a 64bit big-endian system a SEGV would result
when inserting text.
22. configure: CFLAGS added to the ELF_CFLAGS variable. LDFLAGS added
to the ELF_LINK variable.
23. src/slposdir.c: hardlink intrinsic added.
24. src/slexcept.c: "function" field added to the exception object.
25. src/slang.c: The way line number information is stored has been
changed. Now it is nolonger necessary to get line number
information by setting the _debug_info variable. In the process I
tried to make the error messages somewhat more useful.
26. src/slang.h: SLvsnprintf and SLsnprintf functions made public
Previously these were _pSLvsnprinf and _pSLsnprintf. (Dino Sangoid).
27. src/slang.c, _slang.h: Bytecodes were made enums instead of
preprocessor symbols.
28. src/slang.h: External symbols have been prefixed with SL_EXTERN to
facilitate the construction of a slang DLL on windows. When
compiling against the slang DLL, be sure to define SLANG_DLL.
(Dino Sangoid).
29. src/sllist.c: Added foreach method to lists.
30. src/slsmg.c: Experimental feature: If rendering a character string
that contains an character sequence of the form 'ESC [ x m', or
'ESC [ x ]', where x represents a decimal integer, then the
current color will be switched to the value of x. If x is omitted
(ESC[m) then the color will be set to the color active at the time
of the function call.
SLsmg_set_color (1);
SLsmg_write_string ("This is a \033[123mnew\033[m feature");
is equivalent to:
SLsmg_set_color (1);
SLsmg_write_string ("This is a ");
SLsmg_set_color (123);
SLsmg_write_string ("new");
SLsmg_set_color (1);
SLsmg_write_string (" feature");
By default, this feature is turned off but may be turned on via
SLsmg_embedded_escape_mode (1);
Although this special color-changing-byte-sequence looks like an
ANSI escape sequence, the semantics are very different.
31. doc/tm/rtl/type.tm: The "string" function was documented as
returning an integer. (Doug Burke)
Changes since 2.0.0 pre-release 4
0. src/*: For POSIX compliance, all _SL* symbols were changed to
_pSL*. Change suggested by Alastair McKinstry. If you experience
a linker error such as "undefined symbol: _SLChg_UCase_Lut" after
upgrading, then you will have to recompile your application.
1. src/slstring.c: Bug fix. For some strings, a substring would
produce the same hash as the full string. As a result, the
substring was not being properly generated.
2. src/slerr.c: For applications not using the interpreter,
_pSLerr_init was not getting called. As a result, the error-codes
were not getting initialized.
3. src/slsmg.c: Bug fix affecting SLsmg_Newline_Behavior (Thomas
Dickey).
4. src/doc/tm/rtl/strops.tm: typo caught by Doug Burke.
5. src/slstd.c: added atoi, atol, atoll as simple wrappers around
corrsponding standard library functions--- same caveats apply.
6. src/slstd.c: New intrinsics: add_doc_file, get_doc_files,
set_doc_files. These functions facilitate the addition of
documentation via a standard mechanism across all apps using the
interpreter.
7. slsh: Interactive support with readline-editing added to slsh. By
default, the slang library readline functions are used. If you
want GNU readline, then run configure with the appropriate option.
(This feature is due to Mike Noble, mnoble at space, mit, edu).
8. slsh: A man page for slsh (Rafael Laboissiere, rafael at debian, org).
9. src/slwclut.c: No provision was allowed for backslashes in ranges
that also permitted character classes.
10. slsh/mkfiles/makefile.all: New file for non-unix systems.
(DINO SANGOI (SANGOID at lloydadriatico, it)).
Changes since 2.0.0 pre-release 3
1. New intrinsics: array_swap, array_reverse
2. src/slrline.c:SLrline_open: If the display width argument is 0, set
it to 80.
3. sldisply.c: Initialize SLtt_Screen_Cols/Rows to (80,24) instead of
(0,0).
4. src/slparse.c: Expressions such as &s.foo and &s[0] are flagged as
unsupported at parse time.
5. src/slimport.c: A module may now be imported into more than one
namespace. See modules/README if you are a module writer.
6. slsh/Makefile.in, modules/Makefile.in: Made changes so that
nothing gets compiled during the install step.
7. src/slimport.c: If "import" is called without a namespace argument,
the current namespace will be used. If the current namespace is
anonymous, the global namespace will be used.
8. slsh/lib/require.sl: The provide/require functions have been
changed to take a namespace argument.
9. doc/tm/slang.tm: Added section on operator overloading for
user-defined types.
10. doc/tm/tools/fixtxt: a jed-script to repair the text files
generated by the linuxdoc sgml2txt program.
11. doc/tm/slang.tm: Corrected some typos spotted by Doug Burke.
12. src/mkfiles/makefile.all: DOS/Windows: The response file was not
being properly generated (SANGOI DINO (SANGOID at lloydadriatico, it)
13. src/slang.c: The autoload function may be used to load a file into
a namespace. (Based upon an idea from Jörg Sommer (joerg at alea,
gnuu, de)
14. src/slstring.c: New hash function (from Bob Jenkins-- see
See http://burtleburtle.net/bob/hash/evahash.html)
15. src/slassoc.c: rewritten to use double hashing.
Changes since 2.0.0 pre-release 2
1. autoconf/aclocal.m4: "if [...]" replaced by "if test ..." (Lloyd
Zusman)
2. src/slsearch.c: BM searches for a string with the same length as
the string to be searched was failing.
3. slsh/scripts/jpegsize: New demo script that finds the dimensions of
jpeg-encoded images.
4. src/slstd.c: Added _slang_install_prefix intrinsic variable.
5. src/slboseos.c: New file. This file allows to define callback
functions that will be called at the beginning (BOS) and end (EOS) of
every statement executed by the interpreter.
6. slsh/lib/stkcheck,sl: The code in this file makes use of the new
BOS/EOS hooks to display lines in a source file that leave
something on the slang stack.
7. examples/profile.sl: This file defines a few functions that take
advantage of the BOS/EOS hooks to profile slang code.
8. src/slarrfun.inc: sum and cumsum tweaked to use a "compensated
summation" technique to reduce the effect of roundoff and
truncation errors.
9. src/slmisc.c: SLatoi("h") was producing 0, and not an exception.
10. src/slmath.c: On VMS, slang is compiled with IEEE support (Jouk
Jansen).
11. src/slassoc.c: Rewrote the implementation to use a double hashing
scheme.
Changes since 2.0.0 pre-release 1
1. slsh/lib/require.sl: Protect the Features variable against multiple
loading.
2. src/*.c: VMS-specific patches from Jacob (=Jouk) Jansen.
3. src/slsearch.c: non-UTF-8 case-insensitive searches were not working.
4. src/SLwchar*.c: SLwchar_xxxx functions will use the current locale
if UTF-8 has not been enabled for the interpreter.
5. src/sldisply.c: The display of double-wide unicode
characters was not working properly under some conditions.
6. src/slsmg.c: If a double wide character is being displayed, then if
a character is written to either of the cells occupied by the
double wide character, then the opposing cell will be overwritten
with a space.
7. src/sltoken.c: Characters specified as 'x' where 0 !=(x&0x80) were
not being properly parsed.
8. src/aclocal.m4: --without-foo was not working.
9. src/slstrops.sl: Fixed an access error in the "string_match"
function.
Changes since 2.0.0 pre-release 0
1. src/slpath.c: slpath_dirname on VMS was failing to include the
closing "]" in its return value.
2. src/slprep.c: A comment in a slang "#ifdef" directive would cause
an infinite loop.
3. src/slarray.c: An integer array such as [a:b:c] where a>b and c>b was being
improperly computed.
4. src/slparse.c: Function calls with missing arguments was not being
properly handled, e.g., func(,);
5. src/slang.h, src/slclass.h: SLclass_set_foreach_functions added.
6. src/slcurses.[ch]: changes added to support UTF-8 (Adrian Colley)
7. src/Makefile.in: $(prefix)/doc changed to $(prefix)/share/doc
(Adrian Colley)
8. src/sldisply.c: Missing "break" added to tt_sprintf (Andrew V.
Samoilov).
9. src/slang.c: SLang_peek_at_stack_n and SLang_peek_at_stack1_n
functions added to peek deeper into the stack (Mike Noble)
10. src/slang.c: The actual name of the local variable is used in the
traceback messages.
11. src/slsig.c: Support for the signals added to the
interpreter. The new intrinsics include: signal, sigsuspend,
sigprocmask, alarm.
12. src/slcommon.c, slang.h: When system calls are interrupted, a set
of "interrupt" hooks may be called. The return values of the
hooks determine whether or not the system call is restarted.
13. src/slang.c: If a string has a $ suffix, then
variable name expansion will take place on the string, e.g., "$CC"$.
14. src/sldisply.c: misc patches (optimization and buffer
overflow) (Andrew V. Samoilov)
15. src/slprep.c: #<whatever> was not working (Paul Boekholt).
16. src/sldisply.c: Applied a patch from Andriy I Pylypenko dealing
with tgetstr on termcap-based systems.
17. src/slcurses.c: combining character support added to curses
emulation (Adrian Colley)
18. src/slsmg.c: New function SLsmg_strwidth returns the displayable
width of a character string assuming it will be displayed at the
current position.
19. src/slstrops.c: string_match and string_match_nth work in terms of
byte-offsets, not character offsets. New intrinsics: strbytesub
and substrbytes that substitute a byte and return a byte sequence,
resp.
20. src/slarray.c: If A is a string, the A[n] returns a UChar_Type.
Indexing a string using array notation uses byte-semantics.
21. src/slang.h: Tracing messages were being queued instead of
processed right away.
22. src/slcommon.c: SLutf8_enable will use nl_langinfo if available.
23. src/slstdio.c: new intrinsic: fputslines
24. src/slerr.c: Explicit CRs (\r) removed from error and message
handling routines.
25. modules/: smg-module.c renamed to slsmg-module.c, with similar
name changes to the module symbols. Also, for each xxx-module.c, a
new xxx.sl was added to be installed in the slsh install-dir so
that slsh's "require" will pick up the specified module.
Changes since 1.4.9
0. There have been many changes for the version 2 release. See NEWS
and UPGRADE.txt for some of the changes. The ones listed here were
to appear in 1.4.10, if released. Version 2 contains these changes
and many more.
1. src/slang.c: Test for local variable stack overflow was using >
instead of >=.
2. src/slarray.c: Fixed a bug that prevented 7 dim arrays from being
indexed. Similar problem to #1 above: > vs >=.
3. src/slassoc.c: The following caused a segv:
X = Assoc_Type[Int_Type]; X["foo"] = [1:10];
Now a type-mismatch error will get generated.
4. src/slerr.c,sltermin.c: Off by 1 calculations of buffer-sizes fixed
by Andrew V. Samoilov (andrew at email, zp, ua).
5. src/slkeypad.c: More escape sequences courtesy of Denis Zaitsev
(zzz at cd-club.ru)
6. src/slerr.c: SLang_get/set_error functions have been added to the
API to get and set the value of SLang_Error, resp. The variable
SLang_Error will be removed from slang 2. Applications should
start using these functions to ease migration to the next version.
7. src/slstruct.c: Added SLang_push/pop/free_struct functions to
public API. The objects themselves are still opaque.
8. src/slparse.c: allow the semi-colon to be used as a field separator
in a structure declaration.
9. src/slpath.c: path_sans_extname was failing when a dot was in a
directory part of the name.
10. slsh/slsh.c: The names of environment variables defining the location of
the global slsh.rc and the slsh library files may be specified in
slsh/Makefile.
11. src/sltoken.c: Local buffer overflow when the size of an
identifier exceeds 256 characters was found and corrected.
12. src/slarray.c: Leak fixed: Under some circumstances, a memory leak was
generated when using user-defined "typedefd" objects in an array,
e.g.,
typedef struct {a} Foo_Type;
()=[Struct_Type[1],@Foo_Type];
13. src/slarray.c: Indexing a multi-dimensional array using a
mult-dimensional array was broken. Now A[I] returns an array with
the same dimensionality as I, regardless of the dimensionality of A.
14. New intrinsics:
__is_callable (Mike Noble mnoble at space, mit, edu)
__is_numeric (Mike Noble mnoble at space, mit, edu)
__datatype (John Houck houck at space, mit, edu)
mktime
symlink
Changes since 1.4.8
1. src/slarray.c: superfluous call to SLclass_add_math_op removed
(Michael Noble <mnoble at space.mit.edu>)
2. src/slang.c: foreach (NULL) using("next"){} foo (); caused _NARGS=1
in foo.
3. src/slarrfunc.c: Fix to prevent sum(NULL) from causing a core-dump.
4. src/slimport.c: import (module, "") made equivalent to
import(module,"Global"); This way, import(module, current_namespace())
will work when the current namespace is anonymous.
5. src/slospath.c: Several users have requested that I add the ability
to define a load path and use that path when loading interpreter
files. To this end, several new functions were added to the API:
char *SLpath_get_load_path (void);
int SLpath_set_load_path (char *path);
/* Get and Set the path to be searched for files */
int SLpath_get_path_delimiter (void);
SLpath_set_path_delimiter (int delimiter);
/* Get and set the character delimiter for search paths */
int SLang_load_file_verbose (int verbose);
/* if non-zero, display file loading messages */
New intrinsics include:
set_slang_load_path
get_slang_load_path
path_get_delimiter
These functions, nor the intrinsics have an effect on applications
that use SLang_load_file_hook or SLns_load_file_hook for loading
files. The change should be transparant to applications that use
the stock load file mechanism. The main difference is that if one
attempts to load a file with no extension, e.g., "foo", but the
file does not exist, then the interpreter will try to load the more
recent of "foo.sl" and "foo.slc".
See src/slsh.c for how the functions may be used.
6. slsh/slsh.c: Updated to use the new search path code outlined
above. Also, slsh is distributed with a collection of general
purpose slang functions, including jed's provide/require functions.
See slsh/README for more information.
7. doc/tm/cslang.tm: Modified the section describing the implemetation
of intrinsic functions in an effort to clarify the discussion.
8. src/slang.c: tiny memory leak resulting from peephole optimzations
added earlier found and fixed.
9. src/slarrmisc.c: new intrinsic: cumsum computes the cumulative sum
of an array via the new SLarray_map_array function.
10. src/modules: perl compatible regular expression (pcre) module added.
Changes since 1.4.7
1. src/sldisply.c: make sure SLtt_erase_line leaves the cursor at the
beginning of a line in all cases. Previously, this happened only
for terminals able to delete to the end of line _and_, when
writing to the last line, the ability to insert a character.
2. doc/tm/cslang.tm: In the discussion of the MAKE_CSTRUCT_FIELD
macro, SLANG_STRING_TYPE was used instead of SLANG_INT_TYPE
(mnoble at space.mit.edu). Similarly, in the discussion of intrinsic
structures, My_Window was used instead of My_Win
dburke at head-cfa.cfa.harvard.edu.
3. src/slang.c: peephole optimizations of 1.4.7 were conflicting with __tmp
optimizations. This was causing something as simple as
define f()
{
variable a = [1.0:10.0:1];
variable b = a * 0.0;
return a;
}
to fail.
4. src/slarray.c Allow ranges to index higher dimensional array.
5. slsh/slsh.c: Updated to allow a user specified search path. See
slsh/README for more info.
Changes since 1.4.6
1. src/slclass.c: Change "-??-" to "- ?? -" to avoid its
interpretation as a trigraph. Miquel Garriga <miquel at icmab.es>
2. src/mkfiles/makefile.all: If compiling with mingw32, use "cp"
instead of "copy". Miquel Garriga <miquel at icmab.es>
3. src/sllimits.h: Increased the size of the local variable and
recursion stacks on 32 bit systems.
4. src/slarrfun.c: "sum", "min", and "max" intrinsic functions added.
Since these may conflict with application defined function, they
have been placed in their own module. To get them, use
SLang_init_array_extra --- SLang_init_all will not pick up this
module. Version 2 of the library will add these functions to the
main array function module.
5. src/sltermin.c: Work around a bug in the solaris 7+8 tset program
which improperly sets the TERMCAP environment variable
(Paananen Mikko <mikkopa at cs.tut.fi>).
6. src/slprep.c: Added support for "#stop" and a few other useful
or convenient features. See comments at the top of slprep.c for
more details. (Mark Olesen <molesen at zeunastaerker.de>).
7. src/<misc>.c: "const" qualifier added to several places to put
constant variables in rdata/text segment to be shared between
other processes. ("Andrew V. Samoilov" <samoilov at usb.zp.ua>)
8. src/sldisply.c: If colors were defined using the "Sf" capability
instead of the "AF" capability, then assume those are specified in
BGR format instead of RGB. (Pavel Roskin <proski at gnu.org>)
9. slsh/slsh.c: "status" was not declared if compiled with
SLSH_LIB_DIR defined. (mnoble at space.mit.edu)
10. slsh/Makefile.g32: new file to allow slsh to be compiled with
mingw32.
11. src/sldisply.c,sltermin.c: if running as setuid/setgid, then limit
access to the environment for such a process. <solar at openwall.com>.
12. src/slstd.c: New intrinsic function _get_namespaces may be used to
get a list of currently defined namespaces.
13. src/slstruct.c: better support for pushing and popping structures
from C via the SLang_push/pop_cstruct. See doc/text/cslang.txt
for details.
14. slsh/Makefile.in: install target added
15. src/slang.c: additional peep-hole optimizations added
16. src/*.c: fixes it enable the library to be compiled without floating
support support.
Changes since 1.4.5
1. doc/tm/rtl/struct.tm: Typos in documentation for set_struct_fields
corrected by Douglas Burke <dburke at head-cfa.harvard.edu>.
2. src/sldisply.c: VMS specific problem: SLang_TT_Write_FD was not
getting initialized (Hartmut Becker <Hartmut.Becker at compaq.com>).
3. src/slarith.c: On a 64 bit system, it was possible that Int_Type
objects were not getting properly converted to Double_Type.
4. src/sltoken.c: A unitialized memory reference fixed in the
error handling of an empty character declaration ('').
5. src/slstd.c: call to _SLinit_slcomplex moved to slmath.c. This
means that one does not get complex number support unless math
support is also enabled. (suggested by Michael Noble
<mnoble at head-cfa.harvard.edu>)
6. src/slclass.c: Make sure that when registering a class using
SLANG_VOID_TYPE, the reserved class ids are not used.
7. src/slmisc.c, src/sltoken.c: moved SLatoi and friends from sltoken
to slmisc.c. This avoids linking in the interpreter when it is not
needed.
8. doc/tm/rtl/array.tm: Documentation for the "where" function
corrected by <G.Milde at physik.tu-dresden.de>.
9. src/slkeypad.c: support added for F11 and F12 keys
10. src/slimport.c: Better handling of dlopen errors as suggested by
Michael Noble <mnoble at head-cfa.harvard.edu.
11. src/slstruct.c: make sure field names have legal names.
12. src/slistruct.c: SLns_add_istruct_table added.
13. src/sltoken.c: New name-space specific functions added:
SLns_load_file, SLns_load_string
These may be used to load a file or a string into a specified
namespace. Simarily, the "eval" and "evalfile" functions may now
be given a second argument to specify a namespace.
14. src/slstd.c: __eqs function added to test for "sameness" of
its arguments, __class_type returns information about how an
object is classified, __class_id to return its class id. See
examples/saveobj.sl for an example of the use of these functions.
15. src/slarray.c: a 2-d array can nolonger be specified in-line as,
e.g., [[1,2],[3,4]]. This now produces a 1-d array: [1,2,3,4].
16. src/slregexp.c: fix for case-insentive matches involving e.g.,
a\{1,3\} type regexps (Thomas Schultz <tststs at gmx.de>)
17. src/slarray.c: Allow setting elements of pointer type arrays to
NULL, e.g., a[10] = NULL.
18. src/slsignal.c: If CYGWIN, then assume posix signal handling works.
19. src/slang.c: Do not allow an intrinsic function, variable, etc
table to be added twice.
20. src/slarray.c: Added _isnull intrinsic for checking for NULL values of
array elements. This is useful since something like
"where(a==NULL)" does not check the individual elements, whereas
"where(_isnull(a))" does.
21. src/sldisply.c: typo involving the initialization of Del_Eol_Str
for terminals that do not have such capability.
(Pavel Roskin <proski at gnu.org>)
Changes since 1.4.4
1. Added QNX specific patches and fixed some typos that prevented it
from compiling when _SLANG_OPTIMIZE_FOR_SPEED is 0. (Tijs Michels
<tijs at vimec.nl>).
2. Make sure '#ifeval expr' evaluates up to the end of a line and no
further.
3. src/sldisply.c: Do not look for pad info in the graphic charset
pairs string. Also, when comparing space characters, be sure to
take into account ACS. (Marek Paliwoda <paliwoda at inetia.pl>)
4. Trivial code cleanups to avoid BCC 5.x warnings.
5. src/mkfiles/makefile.all: BCC-specific tweaks (John Skilleter
<John.Skilleter at pace.co.uk>)
6. SLang_push/pop_datatype made public
7. src/slutty.c: if tty is not initialized and an attempt is made to
read from the tty, set errno to EBADF.
8. src/slkeypad.c: New function SLkp_set_getkey_function. This may be
used to specify a different function to read keys.
9. src/slcurses.c: If an invalid keysequence is entered, simply return the
characters of the sequence on successive getkey calls.
10. src/slarray.c: Inline arrays of the form [1f, 0] were not working.
11. src/sldisply.c: Make sure SLtt_get_screen size gets called by
SLtt_initialize.
12. doc/tm/rtl/struct.tm: typeof in example for get_struct_field_names
corrected by Chris Baluta.
13. modules/varray.c: example showing how a memory mapped array may be
created. It also illustrates the free_fun callback for arrays.
14. examples/life.sl: a S-Lang implementation of Conway's life.
15. src/slclass.c: SLclass_dup_object function added. Although
push/pop can be used to achieve a duplicated object, this function
makes it a little easier.
16. src/slang.h: Prototyes involving "unsigned char" to represent data
types have been modified to use SLtype, which is typedefed to be
an unsigned char. V2 will use a different size for data types.
17. Misc tweaks to aclocal.m4, src/Makefile.in, etc to support MacOSX.
I have not tested it on that system.
18. The library may now be compiled under CYGWIN using the same
procedure as under Unix.
19. src/slkeypad.c: Some xterm-specific escape sequences added by
Denis Zaitsev <zzz at cd-club.ru>.
Changes since 1.4.3
1. Fixed a bug that shows up on 64 bit BigEndian machines--- it
affected no others.
2. Fixed potential problem in pre-parsing binary strings.
3. Bug a fixed affecting only pure termcap-based systems. It has
been around a while, I am surprised that it took so long to be
discovered.
Changes since 1.4.2
1. If init_NAME_module_ns does not exist in a module, then try to
load init_NAME_module as long as the module is to be imported into
the Global namespace.
2. src/sldisply.c: allow more than 200 rows and 250 columns. Who
uses such windows?
3. Allow Void_Type to be specified for the data-type in array_map if the
function returns nothing.
4. src/slarray.c: A statement such as [1:-1][[1:-1]] = [1:-1]; was
causing a core dump.
5. src/sldisply.c: (Unix/VMS) SLsmg/SLtt routines will write using the file
descriptor SLang_TT_Write_FD, which, by default, is initialized to
fileno(stdout).
6. src/slposio.c: New C API functions:
SLfile_get_fd returns the file descriptor associated with the
SLFile object.
SLfile_dup_fd: duplicate an SLFile object
7. src/slposio.c: New intrinsics: dup_fd (dup a file descriptor)
8. SLerrno.c: C API Function: SLerrno_set_errno.
9. SLerrno.c: More errno values added.
10. Raising complex types to powers supported.
11. slang.c: current_namespace was returning "global" instead of
"Global" for the global namespace.
12. slang.c: `use_namespace("X");define f();' was not placing `f' into
`X'.
13. path_is_absolute fixed to return integer
14. src/slarray.c: generate an error when an empty array is passed to
array_map.
15. src/slarray.c: a=3; a[*] should return an array.
16. Make sure setlocale(LC_NUMERIC,"C") gets called.
17. slvideo.c: SLtt_set_cursor_visibility implemented for win32.
18. slvideo.c: SLtt_get_screen_size corrected for win32 by Zusha P.
19. configure: modified to not automatically assume that -ldl is
required for dlopen. In addition, molesen at zeunastaerker.de sent
patches for building dynamically linked library under irix.
20. slsh/Makefile: generated by configure.
21. modules/Makefile: generated by configure
22. src/slimport.c: If no module path has been set, fall back on
$(prefix)/lib/slang/modules
23. src/Makefile.in: DESTDIR support added by Brad <brad at comstyle.com>.
24. src/Makefile.in: documentation is installed in $(prefix)/doc/slang
and no longer in $(prefix)/doc/slang/$(slang_version)
25. sleep intrinsic can take a floating point number to sleep
fractional seconds.
26. src/slang.c: fix SLang_run_hooks to accept a namespace qualifier.
27. New modules added to the module directory: fcntl, select, termios.
Changes since 1.4.1
1. slang.c: Under certain conditions, the continue statement was not
properly handled in do..while statements. src/test/loops.sl added
for testing.
2. slparse.c: avoid potential (rare?) infinite loop when slang error occurs
(Stanis³a Bartkowski <sb at protest.com.pl>).
3. slsmg.c: When SLsmg_init_smg is called, mark the display as trashed.
4. It is now possible to add intrinsics to their own namespace via
new SLns_add* functions. Moreover, the import function now takes
an optional additional argument that specifies a namespace.
5. New namespace intrinsics: use_namespace, current_namespace
6. Changed inner-product algorithm to minimize the number of cache
misses.
7. sldisply.c: Kanji specific patch from Jim Chen
<jimc at ns.turbolinux.com.cn>.
8. sldisply.c: Assume that Eterm and rxvt are xterm-like (Michael
Jennings <mej at valinux.com>).
9. sldostty.c: mouse support added by Gisle Vanem <giva at bgnett.no>.
10. slsearch.c: avoid infinite loop if search string has no length.
11. SCO elf support added by Mike Hopkirk <hops at sco.com>.
12. slregexp.c: regexp \d+ was not working properly
13. keyhash.c: typos involving USER_BLOCK keywords corrected.
(the use of USER_BLOCKs is discouraged).
14. New intrinsic variable: _slang_doc_dir. This specifies the
installation location of the doc files.
15. Make sure it can compile with SLTT_HAS_NON_BCE_SUPPORT set to 0.
Changes since 1.4.0
1. slw32tty.c: `v' key was not being handled on win32 systems. Also,
Shift-TAB will now generate ^@-TAB.
2. New intrinsic function: strreplace. This is more flexible than
str_replace.
3. VMSMAKE.COM: slstring added to list of files to get compiled.
4. slsh/Makefile, modules/Makefile: added patch from Jim Knoble
<jmknoble at pobox.com> to create elf versions (make ELF=elf).
5. AIX IBMC patches from Andy Igoshin <ai at vsu.ru>.
6. autoconf/config.sub: tweaked to properly handle recent alpha
systems.
7. If compiling on an alpha, add -mieee compiler flags.
8. SLang_roll_stack and SLang_reverse_stack functions made public.
9. SLang_free_function added. If you call SLang_pop_function, then when
finished, call SLang_free_function. This does nothing in 1.X but
may do something in 2.x.
10. src/slrline.c: Keybindings for ESC O A, etc added.
11. src/slsmg.c: SLsmg_write_nstring: avoid many loops if an extremely
large value is passed (> 0x7FFFFFFF).
12. src/slregexp.c made thread safe
13. src/slsmg.c: Cursor was not always properly positioned when
after SLsmg_touch_lines called.
14. If terminal does not have erase to eol capability, then use spaces.
15. doc/tm/strops.sl: doc for strcat updated to reflect its ability to
concatenate N strings.
16. Documentation updated to indicate that floating point range arrays
are open intervals such that [a:b] does not include b. slarray.c
was modified to enforce this specification. Previously, whether
or not b was included in the interval was indeterminate.
17. src/slsmg.c: bug involving SLsmg_set_screen_start fixed.
18. src/slparse.c: parser was failing to catch misplaced `}'.
Changes since 1.3.10
1. If a floating point exception occurs and the OS allows the library
to handle it without forcing a longjmp, then SL_FLOATING_EXCEPTION
will get generated instead of SL_INTRINSIC_ERROR. Note: Linux
provides no way to handle floating point exceptions without
forcing a longjmp. In my opinion, this is a flaw.
2. SLang_pop_double was returning the wrong value for short and
character types.
3. New intrinsic: is_struct_type(X) ==> non-zero is X is a struct.
4. typecast operation from user defined type to Struct_Type added.
5. slkeypad.c: DOS/Windows DELETE_KEY definition added (Doug Kaufman
<dkaufman at rahul.net>)
6. slposdir.c: Do not depend upon the existence of rmdir on VMS
systems.
7. slang.c: abs, sign, mul2, chs, sqr were not being treated as
function calls.
8. sldisply.c:SLtt_cls: If the terminal is a color terminal but
being used as a black and white terminal, then reset colors before
clearing.
9. path_sans_extname intrinsic added.
10. slimport.c: If module defines deinit_NAME, will be be called prior
to unloading the module. (Ulrich Dessauer <des at gmx.de>)
Changes since 1.3.9
0. typedef unsigned short SLsmg_Char_Type added to slang.h.
Applications that access SLsmg functions read/write_raw and
SLsmg_char_at should use SLsmg_Char_Type unstead of unsigned short
because this will be changed to unsigned long in version 2.0.
1. Documentation patches from Vlad Harchev <hvv at hippo.ru> added.
2. slstring.c: offsetof(SLstring,bytes) -->
offsetof(SLstring,bytes[0]) to avoid compiler warning on some
systems.
3. slcmplex.c: an int was used where a double should have beed used.
4. egcs g++ was optimizing slang.c:SLclass_push_ptr_obj away because
it was declared as inline. In my opinion, this is another g++ bug.
5. sscanf intrinsic added. See docs.
6. SLmake_lut rewritten to correct incorrect handling of ranges with a
hyphen at the end.
7. Small bug involving non-BCE terminals in SLsmg_set_color_in_region
fixed.
8. Functions SLcomplex_asinh/acosh/atanh implemented.
9. install-elf will nolonger install .h files twice.
10. @Struct_Type may be used to create a struct.
12. X[i]++, X[i]-=Y, etc implemented.
13. Much of slw32tty.c rewritten to fix several bugs in the win32 tty
support. In addition, if SLgetkey_map_to_ansi(1) has been called,
then function and arrow keys will produce escape sequences that
allow one to distinguish alt, ctrl, and shift function keys.
14. OS/2 specific typo in slposdir.c corrected (Eddie Penninkhof
<wizball at xs4all.nl>).
15. slang.c:add_slang_function: On the very rare occasion that this
function failed, memory would get freed twice.
Changes since 1.3.8
1. Color was not enabled on VMS.
2. If MAKE_INTRINSIC was used to declare a function which takes
arguments, then a typecast error would result when the function was
called. New programs should not use MAKE_INTRINSIC since it
bypasses argument type-checking.
3. src/sl-feat.h: SLTT_XTERM_ALWAYS_BCE variable added to force the
assumption of the bce (background-color-erase) capability of xterm.
The default is 0, which means to accept the terminfo setting.
To force it to 1 during run-time, set the COLORTERM_BCE environment
variable. This is useful when using, e.g., rxvt to login to a
solaris system where the terminfo file will probably not indicate
bce.
4. SLw32tty.c:SLang_init_tty: Open CONIN$ instead of using
GetStdHandle. This is necessary if stdin has been redirected.
5. SLposdir.c: Stat structure contains new field `st_opt_attrs' that
may be used to contain system specific information that `struct
stat' does not provide. In particular, under win32, this field
contains the file attributes, e.g., whether or not a file is
hidden.
6. Appropriate typecasts added to avoid warnings on systems that do not
support `void *'.
7. Characters in the range 128-255 are allowed in identifiers.
8. Correction to the documentation for SLang_init_tty (Ricard Sierra
<irebulle at nexo.es>).
9. SLANG_END_*_TABLE macros added to quiet silly egcs compiler warnings.
10. typo in sltime.c caused it not to compile under Ultrix.
11. Speed improvement of binary operations involving arrays,
particularly when used in conjunction with the __tmp function.
12. traceback messages include the filename containing the function
13. File local intrinsic variable `_auto_declare' added. If non-zero,
any undefined global variable will be given static scope.
14. __uninitialize intrinsic function added.
15. listdir was returning NULL on empty directories. It has been
changed to return String_Type[0]. It will return NULL upon error.
16. slang.h: if __unix is defined, then also define __unix__ (Albert
Chin-A-Young <china at thewrittenword.com>).
17. foreach using extended to File_Type objects. See documentation.
18. Tweak to the inner-product operator such that if A is a vector,
and B is a 2-d matrix, then A will be regarded as a 2-d matrix
with 1 column.
Changes since 1.3.7
0. configure script updated to autoconf 2.13. If /usr/include/slang.h
exists, then the default prefix will be set to /usr.
1. Compile error fixed if _SLANG_HAS_DEBUG_CODE is 0.
2. Bug fix involving typecast(Array_Type, Any_Type).
3. __IBMC__ patches from Eddie Penninkhof <wizball at xs4all.nl>.
4. If A = Assoc_Type[] (Any_Type array), then A[x] automatically
dereferences the Any_Type object.
5. Bug fixed involving Assoc_Type optimization cache.
6. Tweaks to SLtt_smart_puts for improved performace.
7. array_map modifed such that the first array in its argument list
controls the number of elements in the output array. This is a
backward compatible change and makes the function more flexible.
8. Additional tweaks to speedup array inary functions if
_SLANG_OPTIMIZE_FOR_SPEED > 1.
9. Patch from Thomas Henlich <henlich at mmers1.mw.tu-dresden.de> fixing
a problem with the `SLang_define_case' function, which allows
customization of the upper/lower case tables.
10. strtrans and str_delete_chars intrinsic functions added.
11. tweaks to interpreter for some additional speed.
Changes since 1.3.6
1. Added a modified version of a patch from Martynas Kunigelis
<martynas at diskena.dammit.lt> to allow writes to the lower left
corner.
2. SIZEOF_LONG changed to 4 for VMS alpha systems (Jouk Jansen
<joukj at hrem.stm.tudelft.nl>).
3. MSC patches from gustav at morpheus.demon.co.uk (Paul Moore). He also
contributed code for listdir with MSC.
4. SLsmg.c: Background color erase tweaks for terminals that lack this
capability.
5. Fixed a NULL pointer dereference when doing Struct_Type[2][0].
6. Added slsh/scripts/ls and slsh/scripts/badlinks. `ls' is designed
for non-Unix systems and `badlinks' finds all symbolic links in
specified directories that point to non-existent files.
7. SLang_Version_String and intrinsic variable _slang_version_string
added.
8. stat_file modified under win32 such that a trailing `\' is stripped
if present.
9. stat_is intrinsic modified to return a character instead of an
integer.
10. The matrix-multiplication operator `#' now performs inner-products
on arrays, e.g., if A and B arrays:
A = A_i..jk
B = B_kl..m
Then, (A#B)_i..jl..m = A_i..jk B_kl..m where k is summed over.
This means that `#' is a matrix multiplication operator for 2-d
arrays, and acts as a dot-product operator for 1-d arrays.
In the process, it has been extended to complex numbers.
11. _reshape intrinsic function added. Unlike `reshape', this
function creates a new array and returns it.
12. Array indexing via characters works again, e.g., A['a'].
Changes since 1.2.2
0. New assignment operators: *= /= &= |=
The addition of these operators meant that some of the internal
byte-codes had to be modified. This change should only cause
problems with byte-compiled or preprocessed .sl files. As far as I
know, only the JED editors uses this feature. So, after upgrading
the library, and before running JED, do the equivalent of
rm $JED_ROOT/lib/*.slc
That is, delete the byte-compiled .slc files.
1. Now the language supports `!if ... else' statements.
2. New intrinsics:
__is_initialized: This may be used to see whether or
not a variable is initialized, e.g, __is_initialized (&variable);
__get_reference: Returns a reference to an object with a
specified name.
rmdir, rename, remove (slfile.c): these return 0 upon success, -1 upon
failure and set errno
getpid, getgid, getppid (slunix.c)
_typeof: This is similar to `typeof' except in the case of
arrays where it returns the data type of the array
__pop_args, __push_args: see documentation
fseek, ftell, and symbolic constants SEEK_END, SEEK_CUR, SEEK_SET
sleep
usage
3. `Conj' function added to get the complex conjugate
4. New array module that implementes additional array functions, e.g.,
transpose, matrix multiplication, etc... Use `SLang_init_array' to
initialize.
5. An array such as [[1,2,3],[4,5,6]] is interpreted as a 2-row
3-column array.
6. Amiga patches from Jörg Strohmayer <j_s at gmx.de>.
7. New table types:
SLang_IConstant_Type
SLang_DConstant_Type
These are useful for defining symbolic constants. See slmath.c and
slfile.c for examples of their use.
8. A new pseudo-function: __tmp
This `function' takes a single argument, a variable, and returns
the value of the variable, and then undefines the variable. For
example,
variable x = 3;
variable y;
y = __tmp(x);
will result in `y' having a value of `3' and `x' will be undefined.
The purpose of this pseudo-function is to free any memory
associated with a variable if that variable is going to be
re-assigned. For example, consider:
variable x = [1:10:0.1];
x = 3*x^2 + 2;
At the time of the re-assignment of `x' in the last statement, two
arrays will exist. However,
x = 3*__tmp(x)^2 + 2;
results in only one array at the time of the assignment, because
the original array associated with `x' will have been deleted. This
function is a pseudo-function because a syntax error results if
used like
__tmp (sin(x));
9. New low-level push/pop functions that are designed specifically
for use in constructing the push/pop methods of application
defined data types. These functions have names of the form:
SLclass_push_*_obj
SLclass_pop_*_obj
where * represents int, long, char, short, ptr, double, float.
See sltypes.c to see how they are used by, e.g., SLANG_INT_TYPE.
10. New module import facility. See modules subdirectory for
examples. To enable this, use
SLang_init_module
in you application. Modules will be searched in the following order
1. Along the path specified by the `set_import_module_path'
function, or by the C functiion SLang_set_module_load_path.
2. Along the path given by the SLANG_MODULE_PATH environment
variable.
3. Along a system dependent path, e.g., LD_LIBRARY_PATH
4. In the current directory.
New interpreter intrinsics include:
import (String_Type MODULE_NAME);
set_import_module_path (String_Type PATH);
String_Type get_import_module_path ();
11. New integer and floating point types added to the language. Now
all basic C signed and unsigned integer types are supported:
C bindings S-Lang bindings
---------------------------------------
SLANG_CHAR_TYPE Char_Type
SLANG_UCHAR_TYPE UChar_Type
SLANG_SHORT_TYPE Short_Type
SLANG_USHORT_TYPE UShort_Type
SLANG_INT_TYPE Int_Type
SLANG_UINT_TYPE UInt_Type
SLANG_LONG_TYPE Long_Type
SLANG_ULONG_TYPE ULong_Type
SLANG_FLOAT_TYPE Float_Type
SLANG_DOUBLE_TYPE Double_Type
For example, `Long_Type[10]' creates an array of 10 longs.
12. New intrinsic: set_struct_field. See function reference for more
info.
----- snapshot slang1.3_981030 made available -----
13. Type synonyms added:
Int16_Type, UInt16_Type (16 bit (un)signed integer)
Int32_Type, UInt32_Type (32 bit (un)signed integer)
Int64_Type, UInt64_Type (64 bit (un)signed integer)
Float32_Type (32 bit float)
Float64_Type (64 bit float)
Not all systems support 64 bit integers. These synonyms are
useful when one needs integers and floats of a definite size.
14. array_sort changed to use qsort. The main reason for this is that
the previous sorting method was derived from a numerical recipes
merge sort.
15. New namespace manipulation functions available. When a function
or variable is declared as `static', it is placed in the private
namespace associated with the object being parsed (a file). By
default, there is no way of getting at that function or variable
from outside the the file. However, the private namespace may be
given a name via the `implements' function:
implements ("A");
Then the private variables and functions of the namespace A may be
accessed via A->variable_name or A->function_name. The default
global namespace is called `Global'. For example, the intrinsic
function `message' is defined in the global namespace. One may
use either of the following forms to access it:
message ("hello");
Global->message ("hello");
----- snapshot slang1.3_981104 made available -----
16. New intrinsics:
strtok (See documentation)
length (Get the length of an object)
17. New data type added: Any_Type. An array of such a type is capable
of holding any object, e.g.,
a = Any_Type [3];
a[0] = 1; a[1] = "string"; a[2] = (1 + 2i);
Dereferencing an Any_Type object returns the actual object. That
is, @a[1] produces "string".
18. Associative arrays added. See documentation.
19. New `foreach' statement. See the section on `foreach' in
doc/text/slang.txt as well as the examples in examples/assoc.sl
and src/calc.sl.
20. Oops. sign function was broken.
21. array_sort modified to also accept &function_name.
----- snapshot slang1.3_981116 made available (1.3.4) -----
22. Before, it was necessary for the aplication to to call
SLang_init_slassoc to enable associative array support. This is
nolonger necessary if associative array support is enabled in
sl-feat.h.
23. Examples in the documentation modified to use foreach whenever a
simplification occurred.
24. Max screen size for 32 bit systems inclreased to 256 rows.
25. `private' keyword added to prevent access to an object via the
namespace. This works exactly like `static' except that `static'
objects may be accessed via the namespace.
26. structure access methods now available for application defined
types (cl_sput, cl_sget). Also, note that array access methods
are also available. See slassoc.c for examples.
27. If x is a string, then x[[a:b]] produces a string composed of the
characters x[a], ... x[b].
29. New intrinsics:
listdir: This returns the filenames in a specified
directory as an array of strings.
30. Source code for intrinsic functions reorganized in a more coherent
fashion. In particular, SLang_init_slfile and SLang_init_slunix
are obsolete (though still available) and applications should call
a combination of the new functions:
SLang_init_stdio() /* fgets, fopen, ... */
SLang_init_posix_process () /* getpid, kill, ... */
SLang_init_posix_dir () /* mkdir, stat, ... */
Note that `unix_kill' has been replaced by `kill'. So, if you use
unix_kill in your application, change it to `kill'.
31. It is now safe to redefine an object while executing the object,
e.g., this is now ok:
define f(x) { eval ("define f(x) { return x; }"); }
32. Binary strings added. This means that it is now possible to use
strings with embedded null characters. Too fully exploit this new
feature, `fread' and `fwrite' functions were added to the stdio
module. In addition `pack', `unpack', `sizeof_pack',
`pad_pack_format' were added for converting between binary strings
and other data types. See Stdio chapter of the documentation for
more information.
33. New structure intrinsic: set_struct_fields. This is useful for
setting the fields of a structure without doing each one
individually.
34. Interpreter now understands __FILE__ and __LINE__ as referring to
the file name and line number of the object being parsed.
35. New intrinsic: array_map. This applies a function to each element
of an array and returns the result as an array.
36. The documentation for the intrinsic functions has been updated and
organized into a more coherent form.
37. New interface to C structures. See the documentation.
38. Modifications to the interpreter integer types so that short and
int are equivalent whenever sizeof(short)==sizeof(int). Ditto for
int and long. This reduces the code size.
39. NULL is equivalent to 0 in while and if statements, e.g.,
x = NULL;
if (x) { never_executed (); }
while (x) { never_executed (); }
40. `public' made a keyword to for symmetry with `private' and
`static', e.g.,
public define a_public_function ();
public variable a_public_variable;
41. semantics of `implements' modified such that the default variable
and function declarations are `static', i.e.,
define xxx (); % ==> public function
implements ("foo");
define yyy (); % ==> static function
42. Patch from Martynas Kunigelis <kunimart at pit.ktu.lt> adding more
line and symbol drawing characters. Also a patch from
k-yosino at inatori.netsweb.ne.jp forcing a flush when disabling
use of the terminal's status line.
--- Version 1.3.5 released ---
43. Corrected the name of SLang_(sg)et_array_element to be consistent
with the documentation.
44. Fixed a bug involving orelse and andelse statements when
_debug_info is non-zero.
45. The _apropos intrinsic modified to work with namespaces. In fact,
it now returns an array of matches, or if called with out a
namespace argument, it returns values to the stack for backward
compatibility.
46. strchop and strchopr functions modified to return arrays. (this
changes was actually made in 1.3.5).
47. Semantics of strcompress modified to be more useful. The new
semantics are probably more natural and should pose no
compatibility problems.
48. The `*' operator may be used in array index expressions and is
equivalent to `[:]', e.g., a[*,1] means all elements in column 1
of the 2d array.
49. New intrinsics to convert bstrings <--> arrays:
bstring_to_array
array_to_bstring
50. New timing intrinsics: tic(); toc(); times (); Also, unix_ctime
renamed to ctime (This change occurred in 1.3.5).
51. strcat modified to accept more than 2 arguments:
strcat ("a", "b", ..., "c") ==> "ab...c";
52. %S in format specifiers will convert the object to its string
representation and use it as %s.
53. strtok defaults to using " \t\r\n\f" if called with one argument.
54. fgetslines takes optional second argument that specifies the
number of lines to read.
55. If typeof(A) is IStruct_Type, and the corresponding C pointer is
NULL, then pushing A will result in pushing NULL. This allows A
to be compared to NULL.
56. More optimization of arithmetic operations to improve speed. My
tests indicate that the resulting code involving arithmetic
operations are about twice as fast as python (1.5) and about 20%
faster than perl 5.
57. Patches from Andreas Kraft <kraft at fokus.gmd.de> disabling the
listdir intrinsic function if compiled with MSC. Apparantly, the
MSC compiler does not support posix functions such as opendir
(although other vendors, e.g, Borland, have no problem with this).
58. `array_sort' intrinsic may be used without a comparison function.
See docs.
59. Spelling errors in slang.tm corrected by Uichi Katsuta
<katsuta at cced.mt.nec.co.jp> (Thanks!).
60. Default install prefix changed from /usr to /usr/local
61. Changes made to SLtt/SLsmg code so that when a color definition is
made via, e.g., SLtt_set_color, then the SLsmg interface will be
get automatcally notified so that the next SLsmg_refresh will
produce the correct colors. In addition, SLsmg_touch_screen added.
62. It is now possible to evaluate S-Lang expressions with the
S-Lang preprocessor e.g.,
#ifeval (_slang_version > 9900) || (x == 1)
63. sl-feat.h: Patch from Jörg Strohmayer <j_s at gmx.de> to define
_SLANG_MAP_VTXX_8BIT=1 for AMIGA.
64. New intrinsics:
strjoin. This joins elements of a string array.
localtime, gmtime
65. New SLsmg function: SLsmg_reinit_smg. Instead of calling
SLsmg_reset_smg followed immediately by SLsmg_init_smg when
processing SIGWINCH signals, call SLsmg_init_smg instead. This
will allow SLsmg based code to properly redraw themselves when
running in a SunOS cmdtool window by working around a bug in
cmdtool.
===========================================================================
Changes since 1.2.1
1. slcmd.c was not parsing characters in single quotes correctly,
e.g., 'a'.
Changes since 1.2.0
1. Oops. A NULL pointer could be referenced in slcmd.c.
Changes since 1.0.3 beta
-1. The SLKeyMap_List_Type structure has been modified to allow the
name of the keymap be be an arbitrary length. Unfortunately, this
change breaks backward compatibility. So, if you have programs
^^^^^^^^^^^^^^^^^^^^
that are dynamically linked to previous BETA versions of 1.0, you
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
will have to recompile those applications!!!
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
0. The variable SLsmg_Newline_Moves has been renamed to
SLsmg_Newline_Behavior with the following interpretation:
#define SLSMG_NEWLINE_IGNORED 0 /* default */
#define SLSMG_NEWLINE_MOVES 1 /* moves to next line, column 0 */
#define SLSMG_NEWLINE_SCROLLS 2 /* moves but scrolls at bottom of screen */
#define SLSMG_NEWLINE_PRINTABLE 3 /* prints as ^J */
1. Added patches from Joao Luis Fonseca <joaolf at centroin.com.br>
to src/mkfiles/makefile.all and a necessary OS/2 specific
declaration to slvideo.c. I also added the Watcom patches from
Bill McCarthy <WJMc at pobox.com> to makefile.all.
2. The terminfo code is now aware of the complete set of terminfo
definitions. However, the screen management routines support a
small subset. (Eric W. Biederman <ebiederm+eric at npwt.net>).
3. Improvements to the SLsmg scrolling alogorithm.
4. SLang_process_keystring and SLang_make_keystring now return NULL upon
failure.
5. SLcomplex_sqrt branch cut modifed to be consistent with FORTRAN.
6. If the system supports vsnprintf and snprintf, they are used. The
assumption is that they return EOF upon failure. My linux man page
for these functions have conflicting statements regarding this.
7. Simplified handling of memory managed types. Now it is possible to
pass the managed object directly to the intrinsic function. See
slfile.c for an explicit example of this technique. Similarly,
references may also be passed and the function SLang_assign_to_ref
may be used to assign values to the referenced object. This is
also illustrated in slfile.c.
8. QNX specific tweak to slfile.c from Pavanas Abludo Incusus
<pavanas at ccia.com>.
9. Fixed a problem where, e.g.,
x = Double_Type [7,8,9];
y = x[0,[:],[:]];
returned y = Double_Type[8*9] instead of the more intuitive result
Double_Type[8,9];
10. SLcmd_Cmd_Table_Type structure changed to permit an unlimited
number of arguments. The changed should be backward compatible
except that a recompilation of the application will be necessary.
11. New SLsmg function: SLsmg_set_color_in_region may be used to set
the color of a specified region. See demo/smgtest.c for an
example of how this is used. Another use would be to draw shadows
around a box.
12. OS2 ICC patches from Eddie Penninkhof <eddie.penninkhof at tip.nl>.
13. Grammar tweaked to make the pow (^) operator postfix-unary. This
makes more sense mathematically so that:
a^b^c ==> a^(b^c);
-(a)^b ==> -(a^b);
14. New struct specific intrinsics:
get_struct_field_names
get_struct_field_value
_push_struct_field_values
See function reference for more information on these.
Changes since 1.0.2 beta
0. SLtt_init_video, SLtt_reset_video, SLsmg_resume_smg,
SLsmg_suspend_smg have been modifed to return 0 upon success, or -1
upon error.
1. Configure script modified to report slang version as 1.0.x instead
of 1.0.0x.
2. Bug fix involving automatic detection of color (Unix)
3. slvideo.c bug fixed (WIN32, Thanks Chin Huang <cthuang at vex.net>)
4. Slsignal modified so that fork is not used for CYGWIN32, suggested
by vischne at ibm.net.
5. Solaris ELF patches integrated into configure.in. Now ELF support
is available for Linux and Solaris. Thanks Jan Hlavacek
<lahvak at math.ohio-state.edu>.
6. The library now works with MING32 and should work with CYGWIN as
well. See INSTALL.pc and src/mkfiles/README for more information.
Do NOT use the configure script under these environments.
7. A new IBMPC_SYSTEM function added that affects WIN32, MSDOS, and
OS/2 systems:
SLang_getkey_map_to_ansi (int enable);
If `enable' is non-zero, arrow and function keys will be mapped to
the ansi equivalents.
8. The WIN32 terminal support has been modified to be more consistent with
the other platforms. In particular, mouse button press reporting
has been added (SLtt_set_mouse_mode), and bright color support
appears to have been fixed. Note: For MINGW32 and CYGWIN32, use
src/mkfiles/makefile.all. Do not use the Unix configure script
because WIN32 is NOT Unix.
9. Several changes to slvideo.c that deals with the proper use of the
scroll region for DOS/Windows type systems.
10. demo/smgtest.c has been enhanced.
11. Some cleanup performed to src/slprepr.c
12. WIN32 and WIN16 preprocessing symbols are defined when appropriate.
Changes since 1.0.1 beta
1. More VMS patches. Thanks Andy.
Changes since 1.0.0 beta
1. Fixed a bug in the automatic detection of color terminal
2. Patches to get it to compile on OS2 and VMS
3. Replaced \r\n in slarray.c with \n
Changes since 0.99-38
0. Many, many changes to the interpreter. See documentation.
1. SLang_free_intrinsic_user_object shortened via define on VMS.
2. Make sure slang.h does not defined REAL_UNIX_SYSTEM on OS/2.
3. New search paths for termin directories include $HOME/.terminfo and
/usr/share/terminfo.
4. SLsystem function added. This is a replacement for `system'. It
implements POSIX semantics for POSIX systems. Although Linux
claims to be a POSIX system, it's `system' routine is broken.
5. color names color0 ... color7, brightcolor0, ... brightcolor7
added for Unix and VMS systems.
Changes since 0.99-37
1. SLang_input_pending returns -1 if Ctrl-Break pressed (DOS specific).
2. SLtty_VMS_Ctrl_Y_Hook added for Ctrl-Y trapping. Keep in mind that
this is called from an AST.
3. Documentation updates
4. Fixed bug dealing with keymaps with escape sequences involving
characters with the high bit set.
5. slkeypad code ported to DOS
6. SLsmg_write_raw and SLsmg_read_raw functions added.
7. Compilation error under QNX fixed.
9. Small change involving SLang_flush_input.
Changes since 0.99-36
1. Oops fixed a bug in alternate character set handling when
SLtt_Use_Blink_For_ACS is set. This bug only affected DOSEMU.
2. slvideo.c modification that affects DJGPP version of library. Now
the screen is saved and restored.
3. Updates to slcurses.c by Michael Elkins.
4. If a color called `default' is specified, the escape sequence to
set the default color will be sent. Be careful, not all terminals
support this feature. If your terminal supports it, e.g., rxvt,
then using
setenv COLORFGBG default
is a good choice.
Changes since 0.99-35
1. Fixed alt char set bug introduced in 0.99-35.
2. New intrinsic: _stk_reverse
3. New demos: keypad, smgtest, pager
4. The environment variable COLORFGBG may be used to specify default
foreground background colors, e.g., in csh use:
setenv COLORFGBG "white;black"
to specify white on black as the default colors. This also means
that a color name of NULL or the empty string "" will get mapped to
the default color.
5. Improved curses emulation provided by Michael Elkins
(me at muddcs.cs.hmc.edu).
6. Small bug fix to SLang_flush_output provided by Balakrishnan k
<MDSAAA27 at giasmd01.vsnl.net.in>.
7. Updated some documentation in doc/cslang.tex (Gasp).
8. Update vmsmake.com file provided by Martin P.J. Zinser
(m.zinser at gsi.de).
Changes since 0.99-34
0. OS/2 video problem solved by Rob Biggar (rb14 at cornell.edu).
1. The way the interpreter internally handles strings has changed.
This should not affect programs which utilize the library. Now all
strings returned by the function SLang_pop_string should be freed
after use. The SLang_pop_string function will always set the value
of the second parameter passed to it to a non-zero value. For this
reason, programs should use the new function SLpop_string and
always free the string returned by it after use.
2. If SL_RLINE_NO_ECHO bit is set in the readline structure, the
user response will not be echoed.
3. If terminal is xterm, the TERMCAP environment variable will be
ignored. This change was necessary because of the braindead
TERMCAP setting created by the latest version xterm.
4. Some of the keymap routines were re-coded. Now it is possible to
have lowercase characters as part of the prefix character sequence.
5. New modules. See demo/pager.c for information. See also the slrn
source code for a more sophisticated use.
SLscroll: may be useful for routines that deal with displaying
linked lists of lines.
SLsignal: POSIX signal interface for programs that use SLsmg and
SLtt modules. doc/signal.txt may also prove useful.
SLkeypad: Simplified interface to SLang keymaps.
SLerrno: System independ errno routines
Changes since 0.99-33
1. A couple of interpreter bug fixes.
2. Some macros, e.g., MEMSET, removed from slang.h. I do not feel
that they belong there and it is unlikely that they are used by
others. I made them avalable in the file src/jdmacros.h for anyone
whose code depends on them.
3. The functions jed_mem??? have been renamed to SLmem???.
4. New intrinsic: _obj_type returns type information about object on top
of stack.
Changes since 0.99-32
1. appropriate header files added for VMS
2. Oops. 0.99-32 introduced a bug positioning cursor. :(
Changes since 0.99-31
1. Simple minded curses emulation added. This should help those migrating
from curses. See slang/src/curses/*.c for sample curses demo programs
that the SLsmg routines can handle. See also slang/src/slcurses.c for
some wrapper functions.
2. Changed <config.h> to "config.h" in all source files.
3. If system lacks terminfo directories, it is compiled with termcap
support. This generalizes and replaces the test for NeXT.
4. New functions for slang/src/sldisply.c:
void SLtt_get_screen_size (void);
SLtt_Char_Type SLtt_get_color_object (int);
void SLtt_set_color_fgbg (int, SLtt_Char_Type, SLtt_Char_Type);
The first function attempts to deduce the correct values of
SLtt_Screen_Rows and SLtt_Screen_Cols. This function is called by
sltt_get_terminfo.
New constants such as SLSMG_COLOR_BLACK, SLSMG_COLOR_RED, ... have been
added to slang.h to facilitate the use of SLtt_set_color_fgbg.
5. Improved error messages
6. ELF support. Do: make elf; make install-elf
Changes since 0.99.30
1. Small bug fixed that affects 64 bit machines with a certain byte
ordering.
2. slutty.c: _POSIX_VDISABLE is used if defined.
Changes since 0.99.29
0. BIG change in handling keymaps. Specifically, this change effects the
change of the `f' field of the SLang_Key_Type structure. Before, this
was VOID_STAR, now it is a union. The new change is much more portable.
In addition, the function `SLang_define_key1' has been removed and
replaced by `SLkm_define_key'. See src/slrline.c for the use of this new
interface. For a short time, the old interface will be available if the
preprocessor symbol `SLKEYMAP_OBSOLETE' is defined when slang is compiled.
See jed and slrn source for more examples.
1. SLang_getkey now reads from /dev/tty (unix).
2. If the first argument to SLang_init_tty is -1, the current value of the
interrupt character will not be changed (unix).
3. New intrinsic: time
Changes since 0.99.28
1. Oops! Horrible bug in src/slmemcmp fixed.
2. slvideo: init_video modified to be more consistent with VMS/Unix routine.
Changes since 0.99.27
1. More changes to the configure script
2. It looks like hpterm support is in place. This terminal has a glitch
that prevents efficient screen updating.
3. New SLsmg function:
void SLsmg_write_color_chars (unsigned short *s, unsigned int len)
This function may be used to write a string of characters with
attributes.
Changes since 0.99.26
1. Slang now uses a configure script under Unix to configure itself.
2. New intrinsic functions include _stk_roll, strchop, strchopr.
3. Terminals which require an escape sequence to make their arrow keys work
are now sent the escape sequence.
Changes since 0.99.25
1. New SLsmg variables:
SLsmg_Newline_Moves
SLsmg_Backspace_Moves
These variables control the interpretation of newline and backspace
characters in smg.
Changes since 0.99.24
1. SLSMG_RTEE_CHAR, etc... added to OS/2 part of slang.h
2. Small fix for aix-term
Changes since 0.99.23
0. The makefile for unix has been completely re-written.
1. Some problems dealing with certain color terminals have been resolved.
2. `g' generic type added to SLcmd.
Changes since 0.99.22
0. The Macro `VOID' has been removed. The whole point of this macro was to
mimick `void *' declarations for compilers that did not support such a
construct. Instead of `VOID *', slang.h now defines `VOID_STAR' and all
`VOID *' declarations have been renamed to `VOID_STAR'.
If you use the VOID macro in your application, you have two choices:
1. Rename all occurances of VOID * to VOID_STAR
2. Add: #define VOID void somewhere appropriate.
1. \< and \> regular expressions added.
Changes since 0.99.21
1. Oops. I added too much linux stuff (see 3 below). Some of it backed
out to Linux only.
Changes since 0.99.20
1. Problem on some VMS systems which lack prototype for atof fixed.
2. New function: SLtt_set_mouse_mode. This is used to turn on/off mouse
reporting on Unix and VMS systems.
3. The terminal type `linux' is now recognized by the SLtt interface---
even if there is no termcap/terminfo entry for it.
Changes since 0.99.19
1. User definable types must now have object identification numbers larger
than 127. The lower limit used to be 100 but this comflicts with many
applications (as well as slang itself) using lower case letters as the
object number, e.g., create_array ('s', 10, 1); which creates an array
of 10 strings (object number 's' = 115).
2. New intrinsic: array_info available.
3. regular expression matching bug involving \{m,n\} expressions fixed.
4. New module: slprepr.c. This gives programs the ability to use the slang
preprocessor.
5. News slsmg functions: SLsmg_suspend_smg () and SLsmg_resume_smg ().
These are designed to be used before and after suspension. The SLsmg
state is remembered and a redraw is performed by the resume_smg function.
6. The function `sltty_set_suspend_state' is now available for Unix
systems. It may be used to turn on/off processing of the suspend
character by the terminal driver.
7. If SLtt_Try_Termcap is 0, the TERMCAP variable will not be parsed.
8. SLang_TT_Read_FD variable is now available for unix. This is the file
descriptor used by SLang_getkey.
9. New preprocessor symbols available:
SLMATH : If math functions are available
SLUNIX : If unix system calls are available
SLFILES : Stdio functions available
FLOAT_TYPE : Floating point version
Changes since 0.99.18
1. New intrinsic function: strcompress. This collapses a string by removing
repeated characters. For example,
define collapse (f)
{
while (str_replace (f, " ", ",")) f = ();
return strcompress (f, ",");
}
collapse (", ,a b c ,,,d e,f ");
returns: "a,b,c,d,e,f"
2. QNX support added.
3. New Functions (unix only): SLtt_tgetstr, SLtt_tgetnum, SLtt_tgetflag.
4. Fixed parsing of Octal and Hex numbers so that incorrect values are
flagged as errors. Also, both lower and uppercase values may be used in
HEX numbers, e.g., 0xa == 0XA == 0Xa == 0xA.
5. MS-Windows support added. Compile using makefile.msw. This creates
`wslang.lib'.
6. New SLsmg functions: SLsmg_get_row, SLsmg_get_column. These return the
current position.
Changes since 0.99.17
1. I have added limited termcap support although slang is still a terminfo
based system. The support is provided via the TERMCAP environment
variable. If this variable exists and contains a termcap entry for which
there is no reference to another entry (via tc field), it will be used
to setup the terminal. If the TERMCAP variable does not exist, or it
refers to a file, terminfo is used instead. This is not really a
limitation since one can set this variable in a way that slang likes by
using `tset -s'.
The motivation for this support is two-fold:
a. Slang programs can now run inside the screen program which sets
the TERMCAP variable appropriately.
b. A user can now correct defective termcap entries (e.g., for Linux),
and have those corrections made available to slang via the `tset'
command, e.g., by putting something analogous to:
setenv TERMCAP /corrected/termcap/file/absolute/path/name
eval `tset -s terminal-name`
in the .login file.
c. This also means that I can distribute corrected termcap entries for
common terminals.
Changes since 0.99.16
1. Inadequate terminfo entries for `linux' terminal are compensated for.
2. Terminals with the ``Magic cookie glitch'' are flagged as having an
unusable highlighting mode.
changes since 0.99.15
1. Better checking of parameters passed to search routines.
2. Problem with line drawing characters fixed.
changes since 0.99.14
1. Ran code through purify. Fixed one problem reported in slkeymap.c
2. Fixed a bug in sldisply.c regarding mono-attributes.
3. Code ready for ELF
changes since 0.99.13
1. SLtt_Has_Alt_Charset variable added to xterm.c. This is motivated by the
sad, pathetic fact that although some termcap/terminfo databases suggest
that the terminal can do line drawing characters, the terminal cannot.
2. SLsmg_write_nstring function added. This function may be used to write
only n characters of a string padding wit hblanks if necessary.
3. If the environment variable COLORTERM exist, SLtt_get_terminfo will set
SLtt_Use_Ansi_Colors to 1.
4. Sltt_set_cursor_visibility function added. If passed a zero integer value,
the cursor is hidden; otherwise, it is made visible.
changes since 0.99.12
1. SLsmg now uses the `te' and `ti' termcap entries if present. Apparantly
some terminals need to be put in cursor addressing mode. This also has
the effect of restoring the screen of the xterm to what it was before
the program was executed.
2. For some types of code, slang is 20% faster! This is especially
noticeable for branching constructs inside tight loops or recursive
functions.
changes since 0.99.10
1. New version control added:
A new preprocessor symbol was added: SLANG_VERSION
This is a 6 digit integer of the form: abcdef
This corresponds to version number ab.cd.ef. So for version 0.99.11:
#define SLANG_VERSION 9911
In addition, the intrinsic variable `SLang_Version' was changed from a
string to an integer that has the value SLANG_VERSION. This also implies
that the interpreter variable _slang_version is now an integer.
changes since 0.99.9
1. The terminfo code failed to recognize the automatic margin flag. This
has been corrected. In addition, the display code nolonger resets the
character set upon initialization. This is considered to be a good thing.
2. There is a new program in slang/doc called `texconv' that will produce a
nicely formatted ascii document from the tex formatted ones. In
addition, new documentation has been added: slang.tex which describes the
syntax of the slang programming language and cslang.tex which describes
the C interface to the library. The latter document is far from complete
but it is a start.
3. A new variable declaration keyword has beed added: global_variable
This keyword is useful for declaring global variables from within
functions. Such a feature simplifies some scripts.
4. The SLsmg line drawing functions are now in place.
changes since 0.99.8
1. \d may now be used in regular expressions to specify a digit. In addition,
\e specifies an escape character. So for example, `\e\[\d;\dH' matches
an ANSI cursor position escape sequence.
2. Small bug in dealing with terminals that have automatic margins has been
fixed.
3. When compiled with -DSLANG_TERMINFO will use terminfo. This means that
there is no need to link to termcap.
changes since 0.99.7
1. New function added to the readline package:
int SLang_rline_insert (char *s);
this may be used to stuff strings into the rline buffer. SLSC exploits
this feature.
changes since 0.99.6
1. ALL macros beginning with LANG have been changed to use SLANG as the
prefix. For example, the macro LANG_IVARIABLE has been renamed to
SLANG_IVARIABLE. If you have used one of these macros, please make the
change.
2. Application defined types. See demo/complex.c for an example that
defines complex numbers and overloads the binary and unary operators to
work with them.
changes since 0.99.5
1. New interface for application defined objects. Functions include:
extern SLuser_Object_Type *SLang_pop_user_object (unsigned char);
extern void SLang_free_user_object (SLuser_Object_Type *);
extern void SLang_push_user_object (SLuser_Object_Type *);
extern SLuser_Object_Type *SLang_create_user_object (unsigned char type);
This means that S-Lang scripts do not have to worry about freeing
structures, arrays, etc... A consequence of this fact is that the
intrinsic function `free_array' has been removed. See examples of this
exciting new feature in slang/demo.
2. Better documentation and examples. See slang/doc/*.* as well as examples
in slang/demo.
3. Memory allocation macros have changed from MALLOC to SLMALLOC, etc...
Applications are encouraged to use these rather than `malloc' because by
compiling your application AND the slang library with the -DMALLOC_DEBUG
will link in code that checks if you have corrupted memory, freed
something twice, etc... Use the function `SLmalloc_dump_statistics' for
a report of memory consumption by your program.
changes since 0.99.4
1. cleaned up the source some and I changed the names of the hooks
user_whatever to `SLang_User_Whatever'. This makes them more consistent
with other external functions and variables and helps avoid name space
pollution.
changes since 0.99.3
* added screen management stuff
* added a new help file reader (see help directory)
* DOUBLE precision is now the default. I think that this makes more sense
for an interpreted langauge.
* searching routines added.
changes since 0.99.2
* added low level tty support for VMS, DOS, and Unix
* slang readline added
* keymap support
* files restructured so that programs can link, say, the readline library
and not get the whole interpreter linked in.
changes since 0.99.1
* obscure bug in regular expression fixed
* optimizing performed for 10% speed increase in speed for some language
constructs
changes since 0.99.0
* semantics of the `switch' statement changed to be more C-like with the
addition of the `case' keyword. For example, one can write:
switch (ch)
{ case 'A':
something ();
}
{
case 'B':
something_else ();
}
{ case 3.14:
print ("Almost PI");
}
{ case "hello":
print ("hi");
}
Note that one may mix data types without the possibility of a type
mismatch error.
changes since 0.98:
* matrix package added. Currently only matrix multiplication and addition
is supported. More functions will be added (determinants, inverse, etc..)
This support is provided by the `init_SLmatrix ()' call. This support
provides the following S-Lang intrinsics:
matrix_multiply, matrix_add
* New S-Lang core intrinsic:
copy_array : copys the contents of one array to another
changes since 0.97:
* Double precision floating point supported.
Use the -DFLOAT_TYPE -DUSE_DOUBLE compiler flags to enable this.
Note that S-Lang does not support single precision and double precision
floating point number SIMULTANEOUSLY. You must choose one or the other
and stick with it!
* Byte compiling is now more than simple preprocessing. This results in
about a 20% decrease in loading time. This also means that if you
rebuild your application, you MUST re-bytecompile.
* New syntax added: Consider a function f that returns multiple values.
Then to assign these values to, say var_1, and var_2, simply write:
(var_1, var_2) = f ();
This is an alternative to:
f (); =var_2; =var_1;
Changes since 0.96:
It is now possible to use short circuit boolean evaluation of logical
expressions is the `orelse' and `andelse' constructs. Previously, these
constructs were only available at the infix level. The new syntax looks
like (example taken from JED's rmail.sl):
if (orelse
{re_bsearch("^\\CFrom:.*<\\(.+\\)>");}
{re_bsearch("^\\CReply-To: *\\([^ ]+\\) *");}
{re_bsearch("^\\CFrom:.*<\\(.+\\)>");}
{re_bsearch("^\\CFrom: *\\([^ ]+\\) *");}
{re_bsearch("^\\cFrom +\\([^ ]+\\) *");}
)
{
from = rmail_complex_get_from(from);
}
Modified some of the array code to use handles to arrays instead of actual
arrays. This adds alot more protection for the use of arrays. The
downside is that there is a limit on the number of active arrays. This
limit has been set to a default value ot 256. An ``active'' array is an
array that has been created but not freed.
Fixed a parse error that occurred when an `if' statement imediately follow
the `:' in a switch statement.
putenv intrinsic added.
EXIT_BLOCK: if an exit block is declared, it is called just before the
function returns to its caller.
It is now possible to perform assignments in variable declaration
statements, e.g.,
variable i = 0, imax = 10, n = strlen (name);
Condition compilation of S-Lang source possible. See .sl files in the jed
distribution.
A bug which prevent assignment to a global C floating point variable was
fixed.
Changes to `calc':
`apropos' function added to calc.sl. For example, `apropos("str")'
creates a list of all intrinsic functions that contain the substring
"str" (strcmp, strcat, etc...)
Command line arguments are now loaded as S-Lang source files. This makes
it possible to create a Unix executable such as:
#! /usr/local/bin/calc
define hello_world () { print ("hello world"); }
loop (10) hello_world ();
quit ();
}}}