[slang-users] slang 2.3.0 released

[jed@xxxxxxxxxxx (John E. Davis)]

Hi,

Version 2.3.0 of the slang library has been released.  Although more
than 3 years have passed since the previous release (2.2.4), the
library is backwards binary-compatible with previous versions in the
2.x series.

See <http://www.jedsoft.org/slang/download.html> for downloading
options.

The release notes are appended below.  The detailed list of changes
are in the changes.txt file that is part of the source code
distribution.

Thanks,
--John

NEWS for version 2.3.x                                             -*-text-*-

New Modules
===========

   1. base64: A base64 encoder/decoder module
   2. chksum: A module for computing various checksums (currently md5
      and sha1)
   3. stats: A statistics module
   4. histogram: A histogram module
   5. json: Encode/decode json structures

Intrinsic Functions
===================

   The following intrinsic functions have been added for 2.3.x:

     sincos : returns both sin and cos in one function call

     get/setitimer: get/set an interval timer

     wherefirstmin/max, wherelastmin/max: gets index for first/last
       min/max values of an array

     wherediff: returns indices where adjacient elements of an array
       differ.

     bstrjoin, bstrcat: like strjoin/strcat but for binary strings.

     get_environ: returns an array of currently defined environment variables.

     getrusage: Get resource usage

     lchown: Change ownership of a symbolic link

   The following functions have been enhanced:

     array_map modified to support multiple return values.

     is_substrbytes: Added support for an optional offset into the
       string.

Interpreter Syntax
==================

   The step parameter was made optional for the _for statement.

   Struct field names may be an arbirtary string:

         X = struct {"some-field", some_other_field };
         X.some_other_field = 3;
         X."some-field" = 4;


slsh library (used by conforming slang apps such as jed, slrn, ...)
===================================================================

   fswalk.sl: Functions that facilitate walking the filesystem.

   listfuns.sl: Set of functions dealing with lists and list-based
     structures (e.g., heaps).

   rearrange: Performs an in-place arrangement of values in an array
     or list (defined in arrayfuns.sl).


slsh
====

   Using "who" at the slsh> prompt will list the names/values of
   variables and functions defined at the prompt.

API News
========

   Note: The slang 2.3.x API is backward binary compatible with slang
   2.y.z.

   Font attributes (italics, bold, underline, ...) may be enabled for
   terminals that support them by using a color name with a qualifier:

       SLtt_set_color ("menu", "white;italics", "blue");
       SLtt_set_color ("comment", "black;underline;italics", "cyan");

   SLang_init_tty: if flow control parameter is negative, the
   terminal's flow control setting will not be changed.

   New functions:

     Functions for dealing with qualifiers passed to intrinsic
     functions:
        SLang_qualifier_exists;
	SLang_get_int_qualifier;
	SLang_get_long_qualifier;
	SLang_get_double_qualifier;
	SLang_get_string_qualifier;

     Callback functions that allow an app additional hooks into the
     slang readline functions:

        SLrline_set_free_update_cb;
	SLrline_set_update_clear_cb;
	SLrline_set_update_preread_cb;
	SLrline_set_update_postread_cb;
	SLrline_set_update_width_cb;
	SLrline_get_update_client_data;

     Functions for dealing with interpreter associative arrays:

	SLang_create_assoc;
	SLang_push_assoc;
	SLang_pop_assoc;
	SLang_free_assoc;
	SLang_assoc_put;
	SLang_assoc_get;
	SLang_assoc_key_exists;

     Functions for dealing with interpreter list objects:

        SLang_create_list;
	SLang_list_append;
	SLang_list_insert;
	SLang_push_list;
	SLang_pop_list;
	SLang_free_list;

     Functions for dealing with interpreter structures:

        SLang_create_struct;
	SLang_push_struct_field;
	SLang_pop_struct_field;
	SLang_pop_struct_fields;

     Miscellaneous Functions:

        SLstack_exch;
	SLcompute_string_hash;
	SLpath_getcwd;

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