changes.txt

一个C格式的脚本处理函数库源代码,可让你的C程序具有执行C格式的脚本文件

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.

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
   ([e-mail]).  Similarly, in the discussion of intrinsic
   structures, My_Window was used instead of My_Win
   [e-mail].
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 <[e-mail]>).
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 <[e-mail]>).
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" <[e-mail]>)
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 <[e-mail]>)
9. slsh/slsh.c: "status" was not declared if compiled with
   SLSH_LIB_DIR defined. ([e-mail])
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. <[e-mail]>.
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 <[e-mail]>.
2. src/sldisply.c: VMS specific problem: SLang_TT_Write_FD was not
   getting initialized (Hartmut Becker <[e-mail]>).
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
   <[e-mail]>)
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 <[e-mail]>.
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 <[e-mail].
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 <[e-mail]>)
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 <[e-mail]>)

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
   <[e-mail]>).
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 <[e-mail]>)
4. Trivial code cleanups to avoid BCC 5.x warnings.
5. src/mkfiles/makefile.all: BCC-specific tweaks (John Skilleter
   <[e-mail]>)
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 <[e-mail]>. 

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, [e-mail] 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 <[e-mail]>.
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
    (Stanis砤 Bartkowski <[e-mail]>).
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
    <[e-mail]>.
8.  sldisply.c: Assume that Eterm and rxvt are xterm-like (Michael
    Jennings <[e-mail]>).
9.  sldostty.c: mouse support added by Gisle Vanem <[e-mail]>.
10. slsearch.c: avoid infinite loop if search string has no length.    
11. SCO elf support added by Mike Hopkirk <[e-mail]>.
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
    <[e-mail]> to create elf versions (make ELF=elf).
5.  AIX IBMC patches from Andy Igoshin <[e-mail]>.
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.