**1. Mal is a Clojure inspired Lisp interpreter**
-**2. Mal is implemented in 75 languages (76 implementations total)**
+**2. Mal is a learning tool**
+
+Each implementation of mal is separated into
+11 incremental, self-contained (and testable) steps that demonstrate
+core concepts of Lisp. The last step is capable of self-hosting
+(running the mal implementation of mal). See the [make-a-lisp process
+guide](process/guide.md).
+
+The make-a-lisp steps are:
+
+* [step0_repl](process/guide.md#step0)
+* [step1_read_print](process/guide.md#step1)
+* [step2_eval](process/guide.md#step2)
+* [step3_env](process/guide.md#step3)
+* [step4_if_fn_do](process/guide.md#step4)
+* [step5_tco](process/guide.md#step5)
+* [step6_file](process/guide.md#step6)
+* [step7_quote](process/guide.md#step7)
+* [step8_macros](process/guide.md#step8)
+* [step9_try](process/guide.md#step9)
+* [stepA_mal](process/guide.md#stepA)
+
+Each make-a-lisp step has an associated architectural diagram. That elements
+that are new for that step are highlighted in red.
+Here is the final diagram for [step A](process/guide.md#stepA):
+
+![stepA_mal architecture](process/stepA_mal.png)
+
+If you are interested in creating a mal implementation (or just
+interested in using mal for something), please drop by the #mal
+channel on freenode. In addition to the [make-a-lisp process
+guide](process/guide.md) there is also a [mal/make-a-lisp
+FAQ](docs/FAQ.md) where I attempt to answer some common questions.
+
+
+**3. Mal is implemented in 81 languages (84 different implementations and 104 runtime modes)**
| Language | Creator |
| -------- | ------- |
| [GNU Awk](#gnu-awk) | [Miutsuru Kariya](https://github.com/kariya-mitsuru) |
| [Bash 4](#bash-4) | [Joel Martin](https://github.com/kanaka) |
| [BASIC](#basic-c64-and-qbasic) (C64 & QBasic) | [Joel Martin](https://github.com/kanaka) |
+| [BBC BASIC V](#bbc-basic-v) | [Ben Harris](https://github.com/bjh21) |
| [C](#c) | [Joel Martin](https://github.com/kanaka) |
| [C++](#c-1) | [Stephen Thirlwall](https://github.com/sdt) |
| [C#](#c-2) | [Joel Martin](https://github.com/kanaka) |
| [Io](#io) | [Dov Murik](https://github.com/dubek) |
| [Java](#java-17) | [Joel Martin](https://github.com/kanaka) |
| [JavaScript](#javascriptnode) ([Demo](http://kanaka.github.io/mal)) | [Joel Martin](https://github.com/kanaka) |
+| [jq](#jq) | [Ali MohammadPur](https://github.com/alimpfard) |
| [Julia](#julia) | [Joel Martin](https://github.com/kanaka) |
| [Kotlin](#kotlin) | [Javier Fernandez-Ivern](https://github.com/ivern) |
| [LiveScript](#livescript) | [Jos van Bakel](https://github.com/c0deaddict) |
| [MATLAB](#matlab-gnu-octave-and-matlab) (GNU Octave & MATLAB) | [Joel Martin](https://github.com/kanaka) |
| [miniMAL](#minimal) ([Repo](https://github.com/kanaka/miniMAL), [Demo](https://kanaka.github.io/miniMAL/)) | [Joel Martin](https://github.com/kanaka) |
| [NASM](#nasm) | [Ben Dudson](https://github.com/bendudson) |
-| [Nim](#nim-0170) | [Dennis Felsing](https://github.com/def-) |
+| [Nim](#nim-104) | [Dennis Felsing](https://github.com/def-) |
| [Object Pascal](#object-pascal) | [Joel Martin](https://github.com/kanaka) |
| [Objective C](#objective-c) | [Joel Martin](https://github.com/kanaka) |
| [OCaml](#ocaml-4010) | [Chris Houser](https://github.com/chouser) |
-| [Perl](#perl-58) | [Joel Martin](https://github.com/kanaka) |
+| [Perl](#perl-5) | [Joel Martin](https://github.com/kanaka) |
| [Perl 6](#perl-6) | [Hinrik Örn Sigurðsson](https://github.com/hinrik) |
| [PHP](#php-53) | [Joel Martin](https://github.com/kanaka) |
| [Picolisp](#picolisp) | [Vasilij Schneidermann](https://github.com/wasamasa) |
-| [PL/pgSQL](#plpgsql-postgres-sql-procedural-language) (Postgres) | [Joel Martin](https://github.com/kanaka) |
+| [Pike](#pike) | [Dov Murik](https://github.com/dubek) |
+| [PL/pgSQL](#plpgsql-postgresql-sql-procedural-language) (PostgreSQL) | [Joel Martin](https://github.com/kanaka) |
| [PL/SQL](#plsql-oracle-sql-procedural-language) (Oracle) | [Joel Martin](https://github.com/kanaka) |
| [PostScript](#postscript-level-23) | [Joel Martin](https://github.com/kanaka) |
| [PowerShell](#powershell) | [Joel Martin](https://github.com/kanaka) |
| [Python](#python-2x-and-3x) (2.X & 3.X) | [Joel Martin](https://github.com/kanaka) |
+| [Python #2](#python2-3x) (3.X) | [Gavin Lewis](https://github.com/epylar) |
| [RPython](#rpython) | [Joel Martin](https://github.com/kanaka) |
| [R](#r) | [Joel Martin](https://github.com/kanaka) |
| [Racket](#racket-53) | [Joel Martin](https://github.com/kanaka) |
| [Rexx](#rexx) | [Dov Murik](https://github.com/dubek) |
| [Ruby](#ruby-19) | [Joel Martin](https://github.com/kanaka) |
-| [Rust](#rust-100-nightly) | [Joel Martin](https://github.com/kanaka) |
+| [Rust](#rust-138) | [Joel Martin](https://github.com/kanaka) |
| [Scala](#scala) | [Joel Martin](https://github.com/kanaka) |
| [Scheme (R7RS)](#scheme-r7rs) | [Vasilij Schneidermann](https://github.com/wasamasa) |
| [Skew](#skew) | [Dov Murik](https://github.com/dubek) |
| [Swift 2](#swift) | [Keith Rollin](https://github.com/keith-rollin) |
| [Swift 3](#swift-3) | [Joel Martin](https://github.com/kanaka) |
| [Swift 4](#swift-4) | [陆遥](https://github.com/LispLY) |
+| [Swift 5](#swift-5) | [Oleg Montak](https://github.com/MontakOleg) |
| [Tcl](#tcl-86) | [Dov Murik](https://github.com/dubek) |
| [TypeScript](#typescript) | [Masahiro Wakame](https://github.com/vvakame) |
+| [Vala](#vala) | [Simon Tatham](https://github.com/sgtatham) |
| [VHDL](#vhdl) | [Dov Murik](https://github.com/dubek) |
| [Vimscript](#vimscript) | [Dov Murik](https://github.com/dubek) |
| [Visual Basic.NET](#visual-basicnet) | [Joel Martin](https://github.com/kanaka) |
| [WebAssembly](#webassembly-wasm) (wasm) | [Joel Martin](https://github.com/kanaka) |
+| [Wren](#wren) | [Dov Murik](https://github.com/dubek) |
| [Yorick](#yorick) | [Dov Murik](https://github.com/dubek) |
-
-
-**3. Mal is a learning tool**
-
-Each implementation of mal is separated into
-11 incremental, self-contained (and testable) steps that demonstrate
-core concepts of Lisp. The last step is capable of self-hosting
-(running the mal implementation of mal). See the [make-a-lisp process
-guide](process/guide.md).
-
-The make-a-lisp steps are:
-
-* [step0_repl](process/guide.md#step0)
-* [step1_read_print](process/guide.md#step1)
-* [step2_eval](process/guide.md#step2)
-* [step3_env](process/guide.md#step3)
-* [step4_if_fn_do](process/guide.md#step4)
-* [step5_tco](process/guide.md#step5)
-* [step6_file](process/guide.md#step6)
-* [step7_quote](process/guide.md#step7)
-* [step8_macros](process/guide.md#step8)
-* [step9_try](process/guide.md#step9)
-* [stepA_mal](process/guide.md#stepA)
-
-Each make-a-lisp step has an associated architectural diagram. That elements
-that are new for that step are highlighted in red.
-Here is the final diagram for [step A](process/guide.md#stepA):
-
-![stepA_mal architecture](process/stepA_mal.png)
-
-If you are interesting in creating a mal implementation (or just
-interested in using mal for something), please drop by the #mal
-channel on freenode. In addition to the [make-a-lisp process
-guide](process/guide.md) there is also a [mal/make-a-lisp
-FAQ](docs/FAQ.md) where I attempt to answer some common questions.
+| [Zig](#zig) | [Josh Tobin](https://github.com/rjtobin) |
## Presentations
## Other mal Projects
* [malc](https://github.com/dubek/malc) - Mal (Make A Lisp) compiler. Compiles a Mal program to LLVM assembly language, then binary.
- * [malcc](https://git.sr.ht/~tim/malcc) (@seven1m) - malcc is an incremental compiler implementation for the Mal language. It uses the Tiny C Compiler as the compiler backend and has full support for the Mal language, including macros, tail-call elimination, and even run-time eval. ["I Built a Lisp Compiler"](https://mpov.timmorgan.org/i-built-a-lisp-compiler/) post about the process.
+ * [malcc](https://github.com/seven1m/malcc) - malcc is an incremental compiler implementation for the Mal language. It uses the Tiny C Compiler as the compiler backend and has full support for the Mal language, including macros, tail-call elimination, and even run-time eval. ["I Built a Lisp Compiler"](https://mpov.timmorgan.org/i-built-a-lisp-compiler/) post about the process.
* [frock](https://github.com/chr15m/frock) - Clojure-flavoured PHP. Uses mal/php to run programs.
+ * [flk](https://github.com/chr15m/flk) - A LISP that runs wherever Bash is
## Implementation Details
(readline not implemented).
```
-cd ada
+cd impls/ada
make
./stepX_YYY
```
the GNU readline library.
```
-cd ada
+cd impls/ada
make
./stepX_YYY
```
The GNU awk implementation of mal has been tested with GNU awk 4.1.1.
```
-cd gawk
+cd impls/gawk
gawk -O -f stepX_YYY.awk
```
### Bash 4
```
-cd bash
+cd impls/bash
bash stepX_YYY.sh
```
Generate C64 code and run it using cbmbasic:
```
-cd basic
+cd impls/basic
make stepX_YYY.bas
STEP=stepX_YYY ./run
```
Generate QBasic code and load it into qb64:
```
-cd basic
+cd impls/basic
make MODE=qbasic stepX_YYY.bas
./qb64 stepX_YYY.bas
```
Thanks to [Steven Syrek](https://github.com/sjsyrek) for the original
inspiration for this implementation.
+### BBC BASIC V
+
+The BBC BASIC V implementation can run in the Brandy interpreter:
+
+```
+cd impls/bbc-basic
+brandy -quit stepX_YYY.bbc
+```
+
+Or in ARM BBC BASIC V under RISC OS 3 or later:
+
+```
+*Dir bbc-basic.riscos
+*Run setup
+*Run stepX_YYY
+```
### C
library.
```
-cd c
+cd impls/c
make
./stepX_YYY
```
more details:
```
-cd cpp
+cd impls/cpp
make
# OR
make CXX=clang++-3.5
required to build and run the C# implementation.
```
-cd cs
+cd impls/cs
make
mono ./stepX_YYY.exe
```
The ChucK implementation has been tested with ChucK 1.3.5.2.
```
-cd chuck
+cd impls/chuck
./run
```
however, to pass all tests, Clojure 1.8.0-RC4 is required.
```
-cd clojure
+cd impls/clojure
lein with-profile +stepX trampoline run
```
```
sudo npm install -g coffee-script
-cd coffee
+cd impls/coffee
coffee ./stepX_YYY
```
dependencies mentioned installed, do the following to run the implementation
```
-cd common-lisp
+cd impls/common-lisp
make
./run
```
The Crystal implementation of mal has been tested with Crystal 0.26.1.
```
-cd crystal
+cd impls/crystal
crystal run ./stepX_YYY.cr
# OR
make # needed to run tests
readline library.
```
-cd d
+cd impls/d
make
./stepX_YYY
```
The Dart implementation has been tested with Dart 1.20.
```
-cd dart
+cd impls/dart
dart ./stepX_YYY
```
`rlwrap`.
```
-cd elisp
+cd impls/elisp
emacs -Q --batch --load stepX_YYY.el
# with full readline support
rlwrap emacs -Q --batch --load stepX_YYY.el
The Elixir implementation of mal has been tested with Elixir 1.0.5.
```
-cd elixir
+cd impls/elixir
mix stepX_YYY
# Or with readline/line editing functionality:
iex -S mix stepX_YYY
The Elm implementation of mal has been tested with Elm 0.18.0
```
-cd elm
+cd impls/elm
make stepX_YYY.js
STEP=stepX_YYY ./run
```
and [rebar](https://github.com/rebar/rebar) to build.
```
-cd erlang
+cd impls/erlang
make
# OR
MAL_STEP=stepX_YYY rebar compile escriptize # build individual step
JavaScript. The generated code has been tested with Node 0.12.4.
```
-cd es6
+cd impls/es6
make
node build/stepX_YYY.js
```
required to build and run the F# implementation.
```
-cd fsharp
+cd impls/fsharp
make
mono ./stepX_YYY.exe
```
([factorcode.org](http://factorcode.org)).
```
-cd factor
+cd impls/factor
FACTOR_ROOTS=. factor -run=stepX_YYY
```
The Fantom implementation of mal has been tested with Fantom 1.0.70.
```
-cd fantom
+cd impls/fantom
make lib/fan/stepX_YYY.pod
STEP=stepX_YYY ./run
```
### Forth
```
-cd forth
+cd impls/forth
gforth stepX_YYY.fs
```
### GNU Guile 2.1+
```
-cd guile
+cd impls/guile
guile -L ./ stepX_YYY.scm
```
The Smalltalk implementation of mal has been tested with GNU Smalltalk 3.2.91.
```
-cd gnu-smalltalk
+cd impls/gnu-smalltalk
./run
```
path. The implementation has been tested with Go 1.3.1.
```
-cd go
+cd impls/go
make
./stepX_YYY
```
tested with Groovy 1.8.6.
```
-cd groovy
+cd impls/groovy
make
groovy ./stepX_YYY.groovy
```
later and also the Haskell parsec and readline (or editline) packages.
```
-cd haskell
+cd impls/haskell
make
./stepX_YYY
```
JavaScript.
```
-cd haxe
+cd impls/haxe
# Neko
make all-neko
neko ./stepX_YYY.n
The Hy implementation of mal has been tested with Hy 0.13.0.
```
-cd hy
+cd impls/hy
./stepX_YYY.hy
```
The Io implementation of mal has been tested with Io version 20110905.
```
-cd io
+cd impls/io
io ./stepX_YYY.io
```
The Java implementation of mal requires maven2 to build.
```
-cd java
+cd impls/java
mvn compile
mvn -quiet exec:java -Dexec.mainClass=mal.stepX_YYY
# OR
### JavaScript/Node
```
-cd js
-npm update
+cd impls/js
+npm install
node stepX_YYY.js
```
The Julia implementation of mal requires Julia 0.4.
```
-cd julia
+cd impls/julia
julia stepX_YYY.jl
```
+### jq
+
+Tested against version 1.6, with a lot of cheating in the IO department
+
+```
+cd impls/jq
+STEP=stepA_YYY ./run
+ # with Debug
+DEBUG=true STEP=stepA_YYY ./run
+```
+
### Kotlin
The Kotlin implementation of mal has been tested with Kotlin 1.0.
```
-cd kotlin
+cd impls/kotlin
make
java -jar stepX_YYY.jar
```
The LiveScript implementation of mal has been tested with LiveScript 1.5.
```
-cd livescript
+cd impls/livescript
make
node_modules/.bin/lsc stepX_YYY.ls
```
The Logo implementation of mal has been tested with UCBLogo 6.0.
```
-cd logo
+cd impls/logo
logo stepX_YYY.lg
```
### Lua
-The Lua implementation of mal has been tested with Lua 5.2. The
-implementation requires that luarocks and the lua-rex-pcre library
-are installed.
+The Lua implementation of mal has been tested with Lua 5.3.5 The
+implementation requires luarocks to be installed.
```
-cd lua
-make # to build and link linenoise.so
+cd impls/lua
+make # to build and link linenoise.so and rex_pcre.so
./stepX_YYY.lua
```
line argument.
```
-cd IMPL
+cd impls/IMPL
IMPL_STEPA_CMD ../mal/stepX_YYY.mal
```
### GNU Make 3.81
```
-cd make
+cd impls/make
make -f stepX_YYY.mk
```
with Linux 3.16.0-4-amd64 and NASM version 2.11.05.
```
-cd nasm
+cd impls/nasm
make
./stepX_YYY
```
-### Nim 0.17.0
+### Nim 1.0.4
-The Nim implementation of mal has been tested with Nim 0.17.0.
+The Nim implementation of mal has been tested with Nim 1.0.4.
```
-cd nim
+cd impls/nim
make
# OR
nimble build
Linux using the Free Pascal compiler version 2.6.2 and 2.6.4.
```
-cd objpascal
+cd impls/objpascal
make
./stepX_YYY
```
X using XCode 7.
```
-cd objc
+cd impls/objc
make
./stepX_YYY
```
### OCaml 4.01.0
```
-cd ocaml
+cd impls/ocaml
make
./stepX_YYY
```
MATLAB is a commercial product.
```
-cd matlab
+cd impls/matlab
./stepX_YYY
octave -q --no-gui --no-history --eval "stepX_YYY();quit;"
matlab -nodisplay -nosplash -nodesktop -nojvm -r "stepX_YYY();quit;"
implementation of mal you need to download/install the miniMAL
interpreter (which requires Node.js).
```
-cd miniMAL
+cd impls/miniMAL
# Download miniMAL and dependencies
npm install
export PATH=`pwd`/node_modules/minimal-lisp/:$PATH
miniMAL ./stepX_YYY
```
-### Perl 5.8
+### Perl 5
+
+The Perl 5 implementation should work with perl 5.19.3 and later.
For readline line editing support, install Term::ReadLine::Perl or
Term::ReadLine::Gnu from CPAN.
```
-cd perl
+cd impls/perl
perl stepX_YYY.pl
```
The Perl 6 implementation was tested on Rakudo Perl 6 2016.04.
```
-cd perl6
+cd impls/perl6
perl6 stepX_YYY.pl
```
to run.
```
-cd php
+cd impls/php
php stepX_YYY.php
```
or later.
```
-cd picolisp
+cd impls/picolisp
./run
```
-### PL/pgSQL (Postgres SQL Procedural Language)
+### Pike
+
+The Pike implementation was tested on Pike 8.0.
+
+```
+cd impls/pike
+pike stepX_YYY.pike
+```
+
+### PL/pgSQL (PostgreSQL SQL Procedural Language)
-The PL/pgSQL implementation of mal requires a running Postgres server
+The PL/pgSQL implementation of mal requires a running PostgreSQL server
(the "kanaka/mal-test-plpgsql" docker image automatically starts
-a Postgres server). The implementation connects to the Postgres server
+a PostgreSQL server). The implementation connects to the PostgreSQL server
and create a database named "mal" to store tables and stored
procedures. The wrapper script uses the psql command to connect to the
server and defaults to the user "postgres" but this can be overridden
with the PSQL_USER environment variable. A password can be specified
using the PGPASSWORD environment variable. The implementation has been
-tested with Postgres 9.4.
+tested with PostgreSQL 9.4.
```
-cd plpgsql
+cd impls/plpgsql
./wrap.sh stepX_YYY.sql
# OR
PSQL_USER=myuser PGPASSWORD=mypass ./wrap.sh stepX_YYY.sql
### PL/SQL (Oracle SQL Procedural Language)
-The PL/pgSQL implementation of mal requires a running Oracle DB
+The PL/SQL implementation of mal requires a running Oracle DB
server (the "kanaka/mal-test-plsql" docker image automatically
starts an Oracle Express server). The implementation connects to the
Oracle server to create types, tables and stored procedures. The
-default SQL*Plus logon value (username/password@connect_identifier) is
+default SQL\*Plus logon value (username/password@connect_identifier) is
"system/oracle" but this can be overridden with the ORACLE_LOGON
environment variable. The implementation has been tested with Oracle
-Express Edition 11g Release 2. Note that any SQL*Plus connection
+Express Edition 11g Release 2. Note that any SQL\*Plus connection
warnings (user password expiration, etc) will interfere with the
ability of the wrapper script to communicate with the DB.
```
-cd plsql
+cd impls/plsql
./wrap.sh stepX_YYY.sql
# OR
ORACLE_LOGON=myuser/mypass@ORCL ./wrap.sh stepX_YYY.sql
```
-### Postscript Level 2/3
+### PostScript Level 2/3
-The Postscript implementation of mal requires ghostscript to run. It
-has been tested with ghostscript 9.10.
+The PostScript implementation of mal requires Ghostscript to run. It
+has been tested with Ghostscript 9.10.
```
-cd ps
+cd impls/ps
gs -q -dNODISPLAY -I./ stepX_YYY.ps
```
language. It has been tested with PowerShell 6.0.0 Alpha 9 on Linux.
```
-cd powershell
+cd impls/powershell
powershell ./stepX_YYY.ps1
```
### Python (2.X and 3.X)
```
-cd python
+cd impls/python
python stepX_YYY.py
```
+### Python.2 (3.X)
+
+The second Python implementation makes heavy use of type annotations and uses the Arpeggio parser library.
+
+```
+# Recommended: do these steps in a Python virtual environment.
+pip3 install Arpeggio==1.9.0
+python3 stepX_YYY.py
+```
+
### RPython
You must have [rpython](https://rpython.readthedocs.org/) on your path
(included with [pypy](https://bitbucket.org/pypy/pypy/)).
```
-cd rpython
+cd impls/rpython
make # this takes a very long time
./stepX_YYY
```
The R implementation of mal requires R (r-base-core) to run.
```
-cd r
+cd impls/r
make libs # to download and build rdyncall
Rscript stepX_YYY.r
```
compiler/interpreter to run.
```
-cd racket
+cd impls/racket
./stepX_YYY.rkt
```
The Rexx implementation of mal has been tested with Regina Rexx 3.6.
```
-cd rexx
+cd impls/rexx
make
rexx -a ./stepX_YYY.rexxpp
```
### Ruby (1.9+)
```
-cd ruby
+cd impls/ruby
ruby stepX_YYY.rb
```
-### Rust (1.0.0 nightly)
+### Rust (1.38+)
The rust implementation of mal requires the rust compiler and build
tool (cargo) to build.
```
-cd rust
+cd impls/rust
cargo run --release --bin stepX_YYY
```
Install scala and sbt (http://www.scala-sbt.org/0.13/tutorial/Installing-sbt-on-Linux.html):
```
-cd scala
+cd impls/scala
sbt 'run-main stepX_YYY'
# OR
sbt compile
`Makefile` and `run` script accordingly.
```
-cd scheme
+cd impls/scheme
make symlinks
# chibi
scheme_MODE=chibi ./run
The Skew implementation of mal has been tested with Skew 0.7.42.
```
-cd skew
+cd impls/skew
make
node stepX_YYY.js
```
language and standard library.
```
-cd swift
+cd impls/swift
make
./stepX_YYY
```
has been tested with Swift 3 Preview 3.
```
-cd swift3
+cd impls/swift3
make
./stepX_YYY
```
has been tested with Swift 4.2.3 release.
```
-cd swift4
+cd impls/swift4
make
./stepX_YYY
```
+### Swift 5
+
+The Swift 5 implementation of mal requires the Swift 5.0 compiler. It
+has been tested with Swift 5.1.1 release.
+
+```
+cd impls/swift5
+swift run stepX_YYY
+```
+
### Tcl 8.6
The Tcl implementation of mal requires Tcl 8.6 to run. For readline line
editing support, install tclreadline.
```
-cd tcl
+cd impls/tcl
tclsh ./stepX_YYY.tcl
```
It has been tested with Node.js v6.
```
-cd ts
+cd impls/ts
make
node ./stepX_YYY.js
```
+### Vala
+
+The Vala implementation of mal has been tested with the Vala 0.40.8
+compiler. You will need to install `valac` and `libreadline-dev` or
+equivalent.
+
+```
+cd impls/vala
+make
+./stepX_YYY
+```
+
### VHDL
The VHDL implementation of mal has been tested with GHDL 0.29.
```
-cd vhdl
+cd impls/vhdl
make
./run_vhdl.sh ./stepX_YYY
```
The Vimscript implementation of mal requires Vim 8.0 to run.
```
-cd vimscript
+cd impls/vimscript
./run_vimscript.sh ./stepX_YYY.vim
```
required to build and run the VB.NET implementation.
```
-cd vb
+cd impls/vb
make
mono ./stepX_YYY.exe
```
The WebAssembly implementation is written in
[Wam](https://github.com/kanaka/wam) (WebAssembly Macro language) and
runs under several different non-web embeddings (runtimes):
-node,
+[node](https://nodejs.org),
[wasmtime](https://github.com/CraneStation/wasmtime),
+[wasmer](https://wasmer.io),
+[lucet](https://github.com/fastly/lucet),
[wax](https://github.com/kanaka/wac),
[wace](https://github.com/kanaka/wac),
[warpy](https://github.com/kanaka/warpy).
```
-cd wasm
+cd impls/wasm
# node
make wasm_MODE=node
./run.js ./stepX_YYY.wasm
# wasmtime
make wasm_MODE=wasmtime
wasmtime --dir=./ --dir=../ --dir=/ ./stepX_YYY.wasm
+# wasmer
+make wasm_MODE=wasmer
+wasmer run --dir=./ --dir=../ --dir=/ ./stepX_YYY.wasm
+# lucet
+make wasm_MODE=lucet
+lucet-wasi --dir=./:./ --dir=../:../ --dir=/:/ ./stepX_YYY.so
# wax
make wasm_MODE=wax
-wace ./stepX_YYY.wasm
+wax ./stepX_YYY.wasm
# wace
make wasm_MODE=wace_libc
wace ./stepX_YYY.wasm
warpy --argv --memory-pages 256 ./stepX_YYY.wasm
```
+### Wren
+
+The Wren implementation of mal was tested on Wren 0.2.0.
+
+```
+cd impls/wren
+wren ./stepX_YYY.wren
+```
+
### Yorick
The Yorick implementation of mal was tested on Yorick 2.2.04.
```
-cd yorick
+cd impls/yorick
yorick -batch ./stepX_YYY.i
```
+### Zig
+
+The Zig implementation of mal was tested on Zig 0.5.
+
+```
+cd impls/zig
+zig build stepX_YYY
+```
+
## Running tests
### Functional tests
-The are over 600 generic functional tests (for all implementations)
+The are almost 800 generic functional tests (for all implementations)
in the `tests/` directory. Each step has a corresponding test file
containing tests specific to that step. The `runtest.py` test harness
launches a Mal step implementation and then feeds the tests one at