CHANGELOG.md

2025-04-05 Version 0.2.17

New features

• Add each(Dir, Fun)
• Add filter(Dir, pattern)
• Add Iter(Set)
• Add partitionk(Eachable2, pattern)
• Add partitionv(Eachable2, pattern)
• Add fields()
• Add experimental retry_assert()
• Add Duration type
• Add experimental finally(Block, Fun)
• Add Path + Str and Str + Path
• Add avg(Eachable1)
• Add Value pseudo-type for converting values and functions into values
• Add when(val, pattern, new_val)
• Add code(ArrLike)
• Add code(Type)
• Add flat_map(Eachable1, Fun)
• Add COR - Chain of Responsibility
• Add assert(val, pattern, Exception)
• Add connect()
• Add apply(Eachable1, Fun) and apply(Eachable2, Fun)
• Add experimental ensure(x, pat, how)
• Patterns
  • Add F f(x:PATTERN_HERE) ... named parameter pattern syntax (previously PATTERN_HERE had to be a type)
  • Add F f(PATTERN_HERE) ... unnamed parameter pattern syntax (can be a type)
  • Add Transformed pattern
  • Add experimental Capture pattern for capturing values
  • Add experimental Branch pattern for multiple matches
• Add $[...] syntax for running external programs without capturing output
• Add x::{ ... } syntax and ::(x, f:Fun) method definition. Works like tap().

Fixes and improvements

• Fix AtPath for non-eachables
• Improve decode() for AWS CLI commands
• Set comparison now ignores order
• Fix after_last(Str, Str)
• encode_json() - now supports {'pretty': 'best-effort'} hint
• Various build improvements
• Fix edge case in del(Hash, Any)
• echo(Table2::Table) now warns about hidden columns

Deprecated

• Deprecated Deep in favor of AtPath
• Deprecated ~(Any, Type) in favor of =~(Any, Type)
• Deprecated only() in favor if when()

Breaking changes

• Remove deprecated Pred
• Remove deprecated ~(Any, Any) adapter for =~
• Remove deprecated ~(Any, Type)
• Remove unused get(MatchSuccess)
• Remove unused get(MatchFailure)

2023-05-17 Version 0.2.16

New features

• Add Iter(SubSeq)
• Add =~(Eachable1, Pfx, MatchContext)
• Add DecodeHints
• Add =~(DecodeHints, ProcessesPipeline, MatchContext)
• Add AtPath pattern
• Add experimental ResetPath pattern

Fixes and improvements

• Add default =~(Any, Any, MatchContext) which returns false
• Improve decode() implementation for aws command
• Improve =~(Str, SubSeq, MatchContext)
• Fix MatchContext._path when matching elements in =~(Any, Arr, MatchContext)
• Fix in(Int, NumRange) which was causing for i in 0 ... to run once instead of not running

2023-03-18 Version 0.2.15

New features

• Add assert(Fun, Type, Str) for asserting that the code throws the given exception. The type must be subtype of Exception.
• Add namespace net
• Add networking c_sockaddr, c_sockaddr_un, c_sockaddr_in
• Add networking functions: socket(), bind(), listen(), accept(), recvfrom(), send()
• Add networking constants: SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, MSG_OOB, MSG_PEEK, MSG_WAITALL (all prefixed with C_)
• Add Not type and support in pattern matching
• Add env: option to pass environment when running external programs
• Add ensure(Int, NumRange)
• Add last(Eachable1, Any), the counterpart of first()
• Add skip(Iter, Any) - skip elements matching the pattern
• Add skip(Iter, Int) - skip given number of elements
• When a function is called from CLI, the output is now displayed using experimental echo_cli()
• Add AWS2::regions(CommandsPipeline, Arr)
• Add IfExists pattern for optionally present fields
• Add before_first(Str, Str) - get the piece before first occurrence of the delimiter
• Add after_last(Str, Str) - get the piece after the last occurrence of the delimiter

Fixes and improvements

• Add UndefinedUpVar exception, thrown when accessing undefined "upvar"
• Following types now inherit from Error, not Exception: NotImplemented, ReadFail, RequireFail, MainFail
• Experimental syntax - allow many additional elements x.HERE and x::HERE
• Fix and improve documentation
• Improve inspect()
• Add regs parameter to AWS2::regions(Fun)
• $(log: ...) can now take Str to prefix the message
• Improve retry() logging
• Improve Time(Str)

Deprecated

• is_subtype(Type, Type) is now deprecated, use <= operator, example: T1 <= T2. Solves #391.
• typeof(Any) is now deprecated, use Type(Any) instead.
• x \ f syntax is now deprecated, use x.f() and x.{...} instead.

Misc

• GCC 9 on macOS is not supported anymore - it's broken

2022-04-16 Version 0.2.14

New features

• Parsing of curl -i ... command into {"code": Int, "message": Str, "headers": Hash, "headers_arr": Hash, "body": Str}
• Add decode(Str, p), where p is a Path or its subtype.
• Add assert(Path)
• Add Bool(Real)
• Add experimental native_ll_maybe_wrap
• Add TmpDir
• Add replace(File, Any, Any) for in-place replacement

Fixes and improvements

• Fix #451 - decode(Bool) is not strict enough
• group(Eachable1, Fun) now has additional parameter v: group(e:Eachable1, k:Fun, v:Fun=...). v tells how to process values before adding to the resulting multi-value-map.
• The ? operator now takes Any instead of Fun as the right argument.
• Fix tr exception when pattern is a Hash and it should match not at the top level.
• Argv now accepts Repeat keys: {Repeat('--repeat'): my_arr}
• Support my_arr[idx] = val for negative idxes.
• c_pcre_exec now behaves correctly when too many captures are specified
• Fix crash when accessing RegExp#options.
• Improve GitHub build action
• Add builds: Arch Linux, centos 7 and 8, fedora 34 and 35, Amazon Linux 2
• Better exception message when redirecting to >${null}.
• Website update & dark theme support
• ($()) is now a valid syntax for the identifier $()

Deprecated

• Argv - ['--repeat'] is deprecated in favor of Repeat('--repeat')
• attrs() is deprecated, use meta() instead

Breaking changes

• Str(Path) is now returning .path, not <Path path=...>
• the_one() is now fixed and will throw exception instead of returning null when appropriate found_none or found_more is not specified.

2021-11-21 Version 0.2.13

New features

• Add Hash(Hash) (a no-op)
• Add experimental PatternAction type for combining a pattern and an action to take when there is a match
• Add experimental -> syntax for constructing PatternAction
• Add experimental =~(x, PatternAction) which checks the pattern and conditionally runs the action
• Add experimental MatchContext type
• Add experimental Deep type for deep data structure matching
• Add Hash(Eachable1) - Issue #436 - Add Hash(array_of_key_value_pairs)
• Add exec() methods - Issue #459
• partial() is now deprecated because it's not used
• Add Lit type to convey literal value, devoid of any "magical" meaning
• Add collector(Stats, Fun)
• debug(Str, Fun) is now supported
• Add ensure(Arr, T) for T being subtype of ArrLike
• Add fork(), higher level wrapper around c_fork()
• Add Str(ArrLike)

Fixes and improvements

• inspect() fix for partially applied functions: ngs -pi 'X*2' does not fail anymore.
• =~(x, Hash) now supports patterns for keys
• Documentation generation now handles well ENV as default value for a parameter.
• Reorganize stdlib to eleminate multiple inherit() calls
• Remove unused most_by_cb()
• Booleans now compare correctly when used as Hash keys
• exit_hook now removes hooks in child fork()
• It is now possible to redirect to File without using .path - f=TmpFile(); $(echo a > $f) - Issue #490
• test.ngs in the root folder now accepts optional file names; defaults to lang-tests.ngs, stdlib.ngs, and all *.ngs files in lib/autoload

Breaking changes

• Remove deprecated nofail: option
• write(f:File, s:Str) now returns f

Deprecated

• Deprecate without(Eachable1, Any)
• Deprecate without(Eachable2, Any)

2021-06-04 Version 0.2.12

New features

• Add replace(Str, RegExp, Str)
• Add Bool(UserDefinedMethod)
• Add c_pow(Real, Real), pow(Real, Real), pow(Int, Int)
• Add decode() for JSON Web Token (JWT)
• Add echo(File, Str)
• Add echo(File, Lines)
• Add C_DEFS namespace for C defined constants (currently only with _SC_NPROCESSORS_ONLN but will add more later, issue #113)
• Add c_sysconf(), sysconf()
• Add CleanupPolicy, KeepCleanupPolicy, RemoveCleanupPolicy, KeepOnErrorCleanupPolicy to be used with TmpFile
• TmpFile now accepts optional CleanupPolicy argument (defaults to RemoveCleanupPolicy)
• When running ngs -e ..., ngs -p ..., etc - allow using _ instead of fetch().
• Add "curl" installer.

Fixes and improvements

• Fix Str(File) - now display correct type name for subtypes
• Make decode_base64() more robust
• pmap(Eachable1, Fun) now limits number of threads (issue #113)
• Add documentation for MaybeFile
• TmpFile is not experimental anymore
• encode_json() with pretty=true can now handle larger inputs

Breaking changes

• Remove unused defined keyword

2021-03-14 Version 0.2.11

New features

• Add write(Str) - write to stdout
• Add del(HashLike, Any) - remove item from HashLike, similar to del(Hash, Any)
• Add trim(Str) - trim whitespace at the beginning and end of the string
• Add -ppj command line switch - print "pretty" JSON. Requires jq program.
• Add assert(val, pattern, msg) - val must match the pattern or AssertFail will be thrown.
• Add Repeat type - Signifies repetition of a pattern (or something else), to be used in patterns (and maybe somewhere else).
• Add group(Eachable1, Str) - group by field
• Add uniq(Eachable1, Str) - uniq by field
• Add duplicates(Eachable1, field_or_callback) - find duplicates

Fixes and improvements

• Introduced =~ and !~ matching operators.
• The Pred machinery replaced with =~ and !~ match/non-match operators for simplification.
• Some guard clauses are now using =~ and as a result are more concise.
• inspect() now shows attributes (including documentation) of methods and types.
• uniq() now works with Eachable1 (previously Arr) and has optional callback.
• reduce(Eachable1, Fun) now does not assume that the given Eachable1 supports Iter()
• encode_json() now supports hints optional prameter (of type Hash). pretty hint with true value will "prettify" the output.
• partition(Eachable1, pattern) now has default pattern (Bool.constructors)
• store() now supports hints optional prameter (of type Hash). pretty hint with true value will "prettify" the output.
• require() now treats ./something.ngs as an absolute path (to fix later: treat as relative to the file)
• AnyOf and AllOf are no more experimental.
• Increase fork-till-exec memory allocation from 1M to 10M (to avoid crashes)
• Str(Set) now works properly.
• Improve exit_hook robustness.
• Fix exception handling when calling map() with invalid arity callback.

Breaking changes

• =~ match against Arr now matches element-wise. Previously only one-element-array was supported as the second argument and it had to match all elements of the first argument.

2021-01-01 Version 0.2.10

New features

• Add Bool()
• snap packaging (Thanks, @organom)

Work in progress

• CLI

Fixes and improvements

• Fix Homebrew build (Issue #365)
• Fix GitHub actions (Thanks, @chenrui333)
• Add dependabot support to keep actions to the latest (Thanks, @chenrui333)
• Add toc for README (Thanks, @chenrui333)
• Improve build (Thanks, @chenrui333)
• Fix and improve documentation
• ngs --help and ngs -h now work

2020-10-04 Version 0.2.9

New features

• Homebrew formula and readme instructions (Thanks, @SeekingMeaning)
• Homebrew badge (Thanks, @organom)
• main() can now be defined as part of Namespace of the main file: ns { F main(...) ...}
• Add experimental only(val, predicate, mapper)
• Add realpath(Str)
• Use NGS_PATH environment variable for require(). NGS_DIR is deprecated.

Fixes and improvements

• Github actions instead of Travis (Thanks, @organom)
• $(log ...) now logs i/o redirections
• Remove unused ValueWrapper type
• Bootstrapping - MY_NAMESPACE::main works even if main is not defined in the main file, allowing ngs -e 'require("my_module.ngs") to run its own main()
• filterk(), rejectk(), filterv(), rejectv() - the predicate is now optional and defaults to identity.
• Got rid of xxd build time dependency
• make sys/poll.h dependency optional

Breaking changes

• Remove deprecated n()
• switch and cond are now consistent with if, accepting {...} code blocks for the LHS (switch {a=1; a+a} {...}, cond { {a=b+c; a>0 } ... }).

2020-07-26 Version 0.2.8

New features

• Add setup-dev-env target in Makefile
• Add get(MatchSuccess, Int, dflt)
• Add Null() constructor
• Add experimental AllOf()
• Add experimental Bool(AllOf)
• Add experimental Bool(AnyOf)
• Add linux and windows parameter to ec2din.ngs
• More concise tests with THROWS pseudo-operator
• Add NamedInstances (aka enums)
• Add experimental Arg(Program)

Fixes and improvements

• Function with only guard statement no more crashes NGS
• Add missing Bool() call in for(..., HERE, ...)
• Functions that take predicates - default the predicates to identity() and improve documentation
• filter(HashLike, predicate) - the predicate doesn't have to be Fun anymore
• filter(hl:HashLike, predicate) now returns value of the same type as hl
• escape_bash() - fixed and it's not experimental anymore
• section inside ns now working properly
• Top-level/commands syntax now treats as expression syntax any expression that starts with identifier followed by "." or "::".
• Support block.return() to return null
• each(MultiMethod, Fun) now returns the first parameter
• Improve readability of partition(Eachable1, predicate)
• Int(Str) now throws if the string contains garbage in the end
• IPAddr() and IPNet() now validate input
• +(Hash, Hash) now handles subtypes properly (does not return a Hash but the subtype)
• ns { ... } syntax now allows empty body - ns { }.
• Native attrs() methods - not crash on invalid argument
• attrs() now defaults to empty Hash, not to null.
• Improve Str(Type)
• echo(INVALID_FILE_DESCRIPTOR, ...) now throws WriteFail
• write(INVALID_FILE_DESCRIPTOR, ...) now throws WriteFail

Breaking changes

• Experimental OneOf renamed to AnyOf for naming consistency
• Remove unused literal syntax for table
• Syntax: F function definition must be followed by a space when the function is named
• Remove deprecated table(Arr)
• Remove deprecated filter(Eachable1, Str, Any)
• Remove experimental min(Eachable1, Fun) and max(Eachable1, Fun)

Deprecated

• Deprecated ensure_array(x) in favor of the newer ensure(x, Arr)

2019-11-10 Version 0.2.7

New features

• Concurrency
  • Add c_pthread_cond_* methods
  • Add Cond type that exposes pthread_cond_* functionality
  • Add BlockingList linked list type with bocking shift() and pop() methods
  • Add Executor type
  • Add ThreadedExecutor type for simplified processing in threads
  • Add pmap(Eachable1, Int, Fun) - parallel map using limited numbers of threads
  • Add pfilter(Eachable1, predicate) - parallel filter
  • Add pfilter(Eachable1, Int, predicate) - parallel filter using limited numbers of threads
• Add block IDENTIFIER BODY syntax
• Add section NAME BODY syntax
• Add experimental TmpFile - temporary file that is deleted automatically on exit
• Add experimental Program (allows assert(Program("dd")))
• Add experimental sortv()
• Add experimental OneOf type (allows "abc" ~ OneOf(Int, Str))
• Add List linked list type
• Add JsonData method which converts to JSON-compatible data structures; used by encode_json now.
• Add has_no(container, element)
• Add echo(ProcessesPipeline, Str)
• Automate updating ngs.vim syntax file
• Add lines() - returns all standard input as array of lines
• Add words(Str)
• Add Results type, array-like with Result items
• Add ResultsException type (with .results being Results type)
• Add List type
• Add inspect(Eachable1)
• Add len(Box)
• Add len(NumRange) for Int ranges
• Add RetryBodyMissing exception
• Add Namespace type. It is now returned by ns block.
• Add Pred(NumRange).
• Default code to run when not given on command line is F default_argv_code() { fetch() }() .
• Add Vagrantfile
• Add ~(x, t:Type)
• Add has_index(Eachable1, Int)
• Add len(Int)
• Add experimental Pred(OneOf)
• Add experimental TODO(Str)
• ec2din.ngs now takes experimental -c COMMAND

Fixes and improvements

• Rare crashes due to GC fixed
• Multi-stage builds for the docker image (thanks, @organom)
• Hash(Arr, Str) is now Hash(Eachable1, Str) (to support ArrLike)
• Hash(Arr, Fun) is now Hash(Eachable1, Fun) (to support ArrLike)
• Add missing brew dependencies to install-mac.sh (thanks for reporting, @zzamboni)
• Add executable to inspect(Process) and to exception reporting.
• basename() is now implemented in stdlib.ngs as opposed to previously using BASENAME(1).
• finished_ok() now checks for known programs by their basename and not absolute paths (@zzamboni reported failing tests; this changes should fix it)
• echo(Int, Lines) is now echo(Any, Lines)
• Fix wait(Process) to behave correctly when exit_code is not set but exit_signal is set.
• Fix $(blah >${true})
• print_exception() - add optional parameter echo
• exception_specific_message() - refactored for reusability
• Improve error messages for syntax errors
• push(e:Enum, name:Str) now returns e
• stat() methods now return timestamps too (access/modify/change)
• pmap() now throws ResultsException if any of the threads fail
• Stats() now works with Eachable1 allowing counting characters in a string for examples
• Fix Pred(SubSeq) and Pred(RegExp) to prevent endless recursion
• Fix $(... >${false}) syntax
• Fix c_strptime()
• Improve rand_uniq implementation
• Improve MatchSuccess - include pattern
• Improve MatchFailure - include data and pattern
• Move get(Arr, Int, Any) from C to stdlib and support negative indexes.
• Merged two first() methods into one
• Fix Hash comparison for null
• + character is now valid "word" symbol - $(dig +short yahoo.com) is now valid syntax

Breaking changes

• Remove Return type and associated machinery
• Remove deprecated filter(Eachable1)
• Remove deprecated to_exit_code()

Work in progress

• Brew packaging for MacOS

2019-04-13 Version 0.2.6

Breaking changes

• $() now returns ProcessesPipeline (a new type). You should check all the places in your code that use CommandsPipeline. Code that handles result of $(...) should be changed to expect ProcessesPipeline, not CommandsPipeline.
• $(nofail my_command) was removed. Use $(ok: my_command). Deprecated $(nofail: my_command) still works.

New features

• Add chdir().
• Add set(obj, **kwargs). Sets given fields.
• Add copy(nti:NormalTypeInstance). Make shallow copy of an object.
• Lines type. Array of strings to be processed as a unit for output purposes (echo, warn, error).
• inspect() now returns Lines.
• Add -pil command line switch for "Print Inspect()ed Lines"
• Add collector for ArrLike. Enables collector/ArrLike() ....
• Add mapo(Str, Fun) (map to original data type) - map a string to a string, character by character.
• Add assert_bool(Any, Str) to tests.ngs
• Add +(a:Eachable1, b:Eachable1) which is only defined for same types of a and b.
• Add -(Str, Ifx)
• Add experimental is_subtype(t:Type, maybe_supertype:Type).
• Add experimental ensure(x, t:Type) for Eachable1 subtypes. Returns either x if it's already of type t or new object of type t with single item x.
• Add ProcessesPipeline type
• Add inspect(pp:ProcessesPipeline)
• Add ProcessRedir type; Redir type was renamed to CommandRedir. CommandsPipeline has CommandRedir while ProcessesPipeline has ProcessRedir.
• Add Threads(ArrLike) type
• Add join(ArrLike, Str)
• Add .(ArrLike, Str)
• Add collector(Set, Fun), allowing collector/Set() ...
• Add MethodParams type
• Add MethodParam type (and subtypes RequiredMethodParam, OptionalMethodParam, SplatMethodParam, ArrSplatMethodParam, HashSplatMethodParam)
• Add NGS_EXIT_BACKTRACE environment variable. If true, prints backtrace on exit().
• Add NGS_WARN_BACKTRACE environment variable. If true, prints backtrace on warn().
• Add NGS_ERROR_BACKTRACE environment variable. If true, prints backtrace on error().
• Add $(ok_sig: ...) option. If external program terminates by specified signal, NGS will not throw exception.
• Add $(cd: ...) option. Runs the external program in the specified directory.
• Add $(log: ...) option. Logs the program to be executed first and then executes the program.

Fixes and improvements

• Fixed catch bug that was resulting dump Uncaught exception messages when catch(e:MyType) was handling e of non-MyType.
• indexes(arr:Arr, predicate) upgraded to handle eachable: indexes(e:Eachable1, predicate)
• indexes(arr:Arr, r:PredRange) - now takes optional dflt parameter: indexes(arr:Arr, r:PredRange, dflt=...)
• Box() now returns an EmptyBox (thanks @organom !)
• Pred improved so that .filter({"a": 1}) will not throw exception if there is no a field.
• Better c_dlopen() error message
• T.user = x for native types now returns x and not T, consistent with other assignments
• Return is now a subtype of Exception. This fixes failing Failure(Return), which only works on Exception.
• Remove any() and none() for Box - they work anyway because Box is Eachable1. any() and none() are defined for Eachable1.
• Faster ==(Hash, Hash)
• Faster init(Hash)
• Fix C_WEXITSTATUS - return null when WIFEXITED returns false.
• Fix C_WTERMSIG - return null when WIFSIGNALED returns false.
• Fix decode_hex() - now handles inputs of even length, not specifically 2. This makes decode_hex() exact reverse of encode_hex().
• Work around strange error (Issue #180) after execve() was failing on MacOS. Now executing minimal amount of code after failing execve().
• +(s:Str, a:Eachable1) and +(a:Eachable1, s:Str) now return result of exact the same type as a, not Arr.
• Improve print_exception()
• Improved exception message for environment variable access, when the environment variable is not set.
• Remove MacOS-specific "stupid" malloc. GC library appears to work OK on MacOS now.
• Got rid of uthash dependency
• Finished moving todo.txt to GitHub issues
• Improve ArrLike implementation
• bin/elb-describe-lbs.ngs - Instances are now sorted by LaunchTime
• Improve finished_ok implementation: easier handling of "known programs", refactor to support ok_sig option.
• Warning on usage of `line: ` option on non-last command.
• CommandsPipeline related changes which have low probability of breaking anything.
  • wait(cp:CommandsPipeline) is now wait(pp:ProcessesPipeline) and returns pp.
  • Str(cp:CommandsPipeline) is now Str(pp:ProcessesPipeline).
  • kill(cp:CommandsPipeline, sig:Int=SIGNALS.TERM) is now kill(pp:ProcessesPipeline, sig:Int=SIGNALS.TERM)
  • lines(cp:CommandsPipeline) is now lines(pp:ProcessesPipeline)
  • lines(cp:CommandsPipeline, cb:Fun) is now lines(pp:ProcessesPipeline, cb:Fun)
  • assert_...(cp:CommandsPipeline, ...) are now assert_...(pp:ProcessesPipeline, ...)
• Argv() - support for arguments that need repeated argument name

Deprecated

• Deprecated Pred(BasicTypeInstance)

Removed

• Removed deprecated nuke_null()

Work in progress

• Terminal
• Improving error messages shown when exceptions occur.
• Add experimental escape_bash(Str) - quote argument for bash

2018-09-20 Version 0.2.5

New features

• Running NGS without arguments no more produces an error but a friendly usage message
• Docker image for each commit; built by Travis
• Threads-related
  • Add Thread.local - thread local storage (a Hash)
    • Thread.local.thread - current thread object
  • Threads are now named:
    • Add init(t:Thread, name:Str, f:Fun)
    • Add init(t:Thread, name:Str, f:Fun, arg)
• aws command output parsing - .Reservation renamed to ._Reservation
• Add eachk() and eachv()
• Str(s:Str, target_width:Int) extended to Str(s:Str, target_width:Int, ch=' '), allowing padding with given character
• Exiting
  • Add ExitException - parent of all exceptions with exit_code field
    • FatalError is now a child of ExitException
    • Add NormalExit (child of ExitException)
  • Add exit(exit_code:Int=1)
  • Add exit(s:Str, exit_code:Int=1)
• Add dollar \$ escaping syntax
• Add map_idx_val(e:Eachable1, mapper:Fun)
• Add myip() - returns your IP as observable from the Internet
• Add each() for Success and Failure
• Add experimental each_chunk(e:Eachable1, n:Int, cb:Fun)
• Add experimental decode(s:Str, t:Type)
• Add experimental nd (Ngs Data) command line tool

Fixes and improvements

• Fix incorrect parsing of immediate hashes: %{k1 v1 k2 v2 ...}
• Improve Pred(r:RegExp)
• Fix join(Arr) for array of Threads
• Bool(Path) now checks that underlying file system object is of the correct type
• dir() now skips . and .. entries
• dir() now has "raw" parameter
• decode() now parses "locate" output
• nop() now takes any arguments
• retry() - removed "catch_exceptions" parameter
• assert_path_exists() - improve implementation
• E_... constants from C now include all constants available during compilation
• init(Failure, ...) - only accept Exception as second argument
• decode_json() - improve exception

Work in progress

• AWS2 -- second version of AWS (among other: .Region renamed to ._Region)
• bin/na ("NGS AWS") -- CLI for AWS wrapper around declarative primitives library
• bin/nd ("NGS Data") -- Data manipulation utility
• documentation
• Moving todo.txt to GitHub issues

2018-04-21 Version 0.2.4

New features

• Add Time, built on exposed c primitives - gettimeofday, strptime, mktime
• Add Set type
• Add .user field for arbitrary data on types
• Add bin/hn.ngs -- "tail -f" like script for Hacker News
• status() will override previous one on tty using escape codes if no other output was sent between the calls
• status() - use iTerm2 badges

Fixes and improvements

• join(Thread) - throw exception if the other thread had exception
• Improve AWS declarative primitives library
• Implement file descriptors redirection: $(my_prog 2>${1})
• Better Hash iteration in stdlib due to additional exposed ll_hash_* primitives and LLHashEntry type.
• Fix Linux installation instructions
• Update Mac installation instructions
• Automatically set reference to namespace in methods defined in ns { ... }
• Improve memory allocation - use "atomic" memory in few additional places
• Rename "Method" to "Multimethod" and "Method implementation" to "Method" all over
• Rename "attribute" to "field" all over
• Deprecate KV
• Rename to_exit_code to ExitCode for consistency (deprecate to_exit_code)

Work in progress

• AWS2 -- second version of AWS
• bin/na ("NGS AWS") -- CLI for AWS wrapper around declarative primitives library
• Table2 -- the more advanced tabular data holder
• documentation
• Experimental syntax for building documents
• Add experimental MapIter, FilterIter, FunIter

2017-07-09 Version 0.2.3

• Fix missing version.h and ChageLog update in 0.2.2

2017-07-09 Version 0.2.2

• Fix assert_* functions after pipes support in 0.2.0

2017-06-07 Version 0.2.1

• Add lines(cp:CommandsPipeline) to fix broken $(command).lines() after pipes support in 0.2.0
• Add to_exit_code(cp:CommandsPipeline) to fix broken exit codes after pipes support in 0.2.0
• Fix tests broken with RegExp syntax change in 0.2.0
• Fix Str(t:Time, format:Str=TIME_FORMAT, gmt:Bool=false) that was not using format
• Add experimental Pred(h:Hash)

2017-06-02 Version 0.2.0

Breaking changes

• BREAKING: Swap write() arguments from write(what, file) to write(file, what) Many methods with old arguments order will still work but will give a deprecation warning.

New Features

• Pipes support
• Add optional "count" (bytes) parameter to read(fd:Int)
• Add preliminary Str(t:c_pthread_t)
• Add missing id(rrset:RecordSetRes)
• Add abs(i:Int)
• Add decode_uri_component(s:Str)

Fixes and improvements

• Slightly improved documentation
• Improve stability of Str(r:Res)
• Fix error handling in [](arr:Arr, r:NumRange)
• Add optional "max_parts" parameter to split(s:Str, delim:Str)
• A bit more readable inspect() output
• Fix backslashes syntax in /regular expressions/

2017-05-13 Version 0.1.0

• Incorporate Mac OS X support contributed by Zeev Glozman