v0.2.35-beta

Better Formatter

Major changes to the formatter. Here's an example program formatted as an html document:

https://mech-lang.org/nbody.html

Language Spec

Now that we have a way to print these things nicely, work has begun on the language spec. Here's what it looks like so far:

https://mech-lang.org/specification.html

This is supposed to be a one-page document that specifies the syntax and semantics of the base Mech language. Most of the work here went toward formatting the TOC and all of the html elements properly. This document should replace grammar.mec when it's complete.

There are known bugs in the grammar here, they will be fixed as the whole document is written.

New paragraph elements

• strong
• emphasis
• strikethrough
• underline
• inline code

More coming. Because of the syntax for these, *, _, ~, and ` now have to be escaped if you want to write them out in a paragraph.

Full Changelog: v0.2.34-beta...v0.2.35-beta

v0.2.34-beta

Mech File System

The big addition this release is MechFS. With this and the formatter, we can serve Mech files as a website.

e.g.

mech serve dir1 index.mec file2.mec

Starts a server, with a directory "dir1", and two files: index.mec and file2.mec.

Then you can navigate to localhost:8081/index.mec or localhost:8081/file2.mec, or any of the files in dir1. This serves the source as a formatted html file.

Code is hosted at the /code endpoint.

e.g.

localhost:8081/code/index.mec

It's the program AST, compressed and encoded. So whoever requests it, doesn't have to recompile it they just have to decompress and decode.

Full Changelog: v0.2.33-beta...v0.2.34-beta

v0.2.33-beta

Convert array datatypes:

x<[u8]> := [1 2 3 4]

v0.2.31-beta

Full Changelog: v0.2.30-beta...v0.2.31-beta

v0.2.30-beta

Mostly improvements to formatter.

Full Changelog: v0.2.29-beta...v0.2.30-beta

v0.2.29-beta

Serve

Bring back HTTP server, wasm bin.

Format

Bring back formatter, can output formatted html.

Output formatting

Added better pretty printing for various datatypes.

Full Changelog: v0.2.26-beta...v0.2.29-beta

v0.2.27-beta

Lots of improvements to the REPL.

Added the following commands:

:help, :h       Display this help message
:quit, :q       Quit the REPL
:symbols, :s    Display all symbols
:plan, :p       Display the plan
:whos, :w       Display all symbols
:clear          Clear the interpreter state
:clc            Clear the screen
:load           Load a file
:ls             List directory contents
:cd             Change directory
:step           Step through the plan

Variables are now immutable by default. To make them mutable, prefix with ~

~x := [1 2 
       4 5] 
x[2] = 42      -- x == [1 2; 42 5]

y := 7
y = 10         -- Error!

Full Changelog: v0.2.26-beta...v0.2.27-beta

v0.1-beta

Full Changelog: v0.0.5...v0.1-alpha

0.2.26-beta

Performance improvements.

REPL tools.

Full Changelog: v0.2.25-beta...v0.2.26-beta

v0.2.25-beta

Full Changelog: v0.2.24-beta...v0.2.25-beta