unofficial mirror of 
 help / color / mirror / Atom feed
* [ANN] Guile-SMC 0.6.3 released
@ 2023-12-04  3:27 Artyom V. Poptsov
  0 siblings, 0 replies; only message in thread
From: Artyom V. Poptsov @ 2023-12-04  3:27 UTC (permalink / raw)
  To: Guile Users' Mailing List

[-- Attachment #1: Type: text/plain, Size: 3596 bytes --]

Hello Guilers,

I'm pleased to announce Guile State Machine Compiler (Guile-SMC), version

This release adds support for PlantUML multi-line comments and "hide"
blocks, and also fixes bugs.

Please see the list of notable changes below.

Guile-SMC 0.6.3 is backward-compatible with 0.6.0, 0.6.1 and 0.6.2.

* 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 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 0.6.3 (2023-12-02)
** PlantUML parser now handles multi-line comments
** =(smc context functional char)=: Bugfix
=pre-action= procedure would increment the row counter even when the input
event is not a newline character.  Now the procedure counts rows properly.
** Skip "hide" blocks in state diagrams
For example, the following code will be ignored by the PlantUML parser:
hide empty description
** Allow to use "end legend" syntax for "legend" blocks
** Improve error reporting in the PlantUML parser
--8<---------------cut here---------------end--------------->8---

* Usage examples

- Guile-INI -- INI[2] format parser:
- Guile-ICS -- iCalendar (RFC 5545) and vCard (RFC 6350) parser:
- Guile-PNG -- Pure Scheme Portable Network Graphics (PNG, RFC 2083)
- Guile-DSV -- Pure scheme CSV/DSV library and a console tool:

Happy hacking,

- Artyom


Artyom "avp" Poptsov <>
Home page:
CADR Hackerspace co-founder:
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 869 bytes --]

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2023-12-04  3:27 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-12-04  3:27 [ANN] Guile-SMC 0.6.3 released Artyom V. Poptsov

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).