Hello, I'm pleased to announce Guile State Machine Compiler (Guile-SMC), version 0.3.0: https://github.com/artyom-poptsov/guile-smc/releases/tag/v0.3.0
* What is Guile-SMC? Guile-SMC is a state machine compiler that allows to describe finite state machines (FSMs) in Scheme in terms of transition tables. It is capable to generate such transition tables from a PlantUML state diagrams. [1] A transition table can be verified and checked for dead-ends and infinite loops. Also Guile-SMC FSMs gather statistics when they run. Guile-SMC comes with a Scheme program called 'smc' -- a state machine compiler itself. It produces a Scheme code for an FSM from the PlantUML format. This tool is meant to be called on a PlantUML file when a program with a FSM is being built (for example, from a Makefile.) I'm hoping that it will ease the burden of writing format parsers and other useful GNU Guile libraries for the community. * User-visible changes --8<---------------cut here---------------start------------->8--- * Version 0.3.0 (2021-12-04) ** Bootstrap PlantUML parser by itself Now Guile-SMC uses itself to generate an FSM for PlantUML format. ** =(smc version)=: New module The module contains information about the current Guile-SMC version. ** Guile-SMC compiler now adds version information to the output file ** Add new context modules There are now =(smc context context-char)=. This module defines guards for the whole ASCII table. ** Allow to provide custom event sources for FSMs ** Allow to set entry/exit actions for each state ** Use a logger implementation from the Guile-Library ** Order of parameters of guards and actions is changed ** =(smc puml)=: Improve PlantUML syntax checking ** Guile-SMC now allows to set a FSM description ** =smc= functionality now split between sub-commands ** =smc= now allows to generate and analyze FSM context See =context= sub-command. ** =(smc fsm)=: API of =fsm-run!= is simplified ** Implement "run" command The =smc= program now has =run= command that allows to read and run a finite-state machine based on a PlantUML description right away. ** Add new tests ** Documentation updated --8<---------------cut here---------------end--------------->8--- * Usage examples I wrote an INI[2] format parser to test the foundation ideas behind Guile-SMC from the practical perspective: https://github.com/artyom-poptsov/guile-ini Also I wrote a simple PNG[3] format parser that uses Guile-SMC as well: https://github.com/artyom-poptsov/guile-png Happy hacking, - Artyom References: 1: https://plantuml.com/state-diagram 2: https://en.wikipedia.org/wiki/INI_file 3: https://en.wikipedia.org/wiki/Portable_Network_Graphics -- Artyom "avp" Poptsov <poptsov.art...@gmail.com> Home page: https://memory-heap.org/~avp/ CADR Hackerspace co-founder: https://cadrspace.ru/ GPG: D0C2 EAC1 3310 822D 98DE B57C E9C5 A2D9 0898 A02F
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