Hello Guilers, I'm pleased to announce Guile State Machine Compiler (Guile-SMC), version 0.6.1: https://github.com/artyom-poptsov/guile-smc/releases/tag/v0.6.1
This release adds support for setting a global event source for a finite-state machine in PlantUML using "legend" section and context sub-types for "smc context" command. Some bugs fixed as well, please see the list of notable changes below. * 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] Some of the key features: - A transition table can be verified and checked for dead-ends and infinite loops. - Guile-SMC FSMs gather statistics when they run (steps/transitions); the statistics can be used can be used to compare/analyze FSMs.. - There's an FSM profiler that runs on FSMs trace logs. The profiler output shows how much time the FSM spends in each state. This can be useful for optimization. - The state machine compiler supports three "targets" for compilation: a regular "guile" target where the output FSM depends on Guile-SMC; "guile-standalone" target that produce an FSM that does not depend on Guile-SMC. - Guile-SMC allows to run a FSM on-the-fly with a single "smc run" command -- see the docs and the examples for more information. - Common context code for parsers that work with characters or bytes. This includes special data structures to provide memory for FSMs (although it is not required to use them; FSMs can use custom procedures and data structures.) 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 0.6.1 (2023-07-30) ** Allow to set a global event source in a PlantUML "legend" block Now PlantUML parser allows to set a global event source for an FSM in a "legend" block, like follows: #+BEGIN_EXAMPLE some_state: event-source: some-event-source #+END_EXAMPLE ** =smc context=: Allow to set context sub-type =smc context= now allows to set a context sub-type to minimise the amount of imported code. This change is backward-compatible with the old CLI as "oop" and "functional" types still supported. Please see =smc context --help= for the full list of supported types and subtypes. ** =fsm-run!= bugfix: Return the updated context at the end Return the updated context at the end of FSM run. ** =(smc core state)=: Bugfix Add missing serialization of the state "exit-action". Also set the state exit action when the state is de-serialized. --8<---------------cut here---------------end--------------->8--- * Usage examples - Guile-INI -- INI[2] format parser: https://github.com/artyom-poptsov/guile-ics - Guile-ICS -- iCalendar (RFC 5545) and vCard (RFC 6350) parser: https://github.com/artyom-poptsov/guile-ics - Guile-PNG -- Pure Scheme Portable Network Graphics (PNG, RFC 2083) library: 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 -- 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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