= LES == DESCRIPTION: LES (Lisp Erlang Smalltalk) is a language based on the Kernel Lisp dialect that draws much inspiration from Elixir and Pharo Smalltalk. The goal is a language with a self contained development environment similar to Smalltalk that facilitates designing Domain Specific Languages (DSLs) and getting them to run in the environment and take advantage of the development tools in it. Furthermore, the goal is to also provide tools to make it simple to generate code from sources in DSLs in a language that can be used in projects it is for. DSLs allow for readable and concise code for the problem domain they work on. Furthermore, knowing what code is being used for means high level optimization can be preformed if the tooling exists. By making it easier to create DSLs LES aims at making programs with common design patterns easier to write quickly and robustly. A great example is compilers where the various passes of lexical analysis, parsing, semantic analysis, generating intermediate code, optimizing the intermediate form, and generating the output each have elements that tend to be common across different compilers regardless of the source and output language. == FEATURES (Planned): Data is code, and code maps directly to data primitives. And the structure of its basic data structures model ASTs, allowing DSL to be executed directly after parsing them. First class environments and operatives. Inherited from Kernel, operatives are a combination of closures and macros, removing the need for quotation and special forms that keep many Lisp dialects from having code and data truly be the same. First class continuation and coroutines allow flexible control flow to model any operation ordering a DSL might need. Sane model for updating program state in the presence of garbage collection. Garbage collected languages that do not provide tools to manage mutation present more problems than multi-threading in languages that have the programmer deal with memory management as controlling mutation is trivial if you have already tracked down the life span of every piece of data. Proper tail recursion. Good modelling of distributed code while having it all in one program, allowing for easier debugging. Extensive development tools that can be hooked up to also work with code written in DSLs implemented on top of LES. Persistent state similar to Smalltalk. The language created for the reference interpreter (PLES) serves an easy output target for making stand alone programs from DSL code. == BUILDING: Currently the boot strap programs are in need of updating. Building would require writing such a program based on the documentation in the design folder. == REQUIREMENTS: Not applicable at this time. == PROJECT LAYOUT: - build : Contains build specification files - design : Contains documents about the design of LES and associated languages. - macro : Contains macros to pre-process source files with. - src : Contains the source files that have not been expanded to PLES. Code is place in sub folders based on the name of its build file. - TODO.txt : Lists work planned. - LICENSE : The license for the project's code. - README.txt : This file. == DEVELOPERS: Adam Armstrong == LICENSE: The project's code is under the ISC license, see the LICENSE file for details. It is also included in files along side the source code.