Breaking Changes

• Removed debug symbol.

New Features

• Added symbol timestamp.
• Implemented the possibility to load additional .hex or .hbx files at startup by using the -l, --load option.
• Implemented a utils.hex library as part of the Standard Library, containing additional utility symbols (loaded automatically in the playground).

Fixes

• Fixed some documentation typos and inaccuracies.
• Improved memory management

Chores

• Added tests for utils.hex
• Implemented a basic doc.hex script to generate reference documentation from hex files.

Breaking Changes

• Renamed pop to drop.
• Renamed replace to sub.
• ! now requires an extra string on the stack to be used as the file name/identifier in stack traces.

Fixes

• Fixed some documentation typos and inaccuracies.
• Fixed incorrect bytecode processing for quotations with more than 127 items.

Chores

• Added more tests.

Fixes

• Addressed segmentation fault when interpreting bytecode on Windows (filename was not populated for symbol position).
• Ensured that newlines are correctly processed on Windows.
• Renamed the operator property in hex_item_t to is_operator to avoid conflicts in C++ code (operator is a reserved keyword).

Breaking Changes

• Removed the native symbol %:when%%.
• Bytecode: some opcodes changed values; programs compiled with tbe previous version must be recompiled.

New Features

• Added symbol debug to dequote a quotation in debug mode.
• The registry has been reimplemented as a hash table that can store up to 4096 symbols.

Fixes

• Improved string escaping/unescaping.
• Values bound to symbols are deep-copied before being pushed on the stack.
• Action quotations are now deep-copied in while and map symbols.

Chores

• Updated Vim syntax highlighting.

Breaking Changes

• Removed the native symbols filter, clear, and each.
• Bytecode: some opcodes changed values; programs compiled with tbe previous version must be recompiled.

New Features

• Added symbol :: to define operators (immediately-dequoted quotations).
• Added symbol symbols to get a list of all stored symbols
• Added symbol throw to throw an error.
• Increased the size of the STDIN buffer to 16Kb.

Fixes

• <= now returns correct results.

Chores

• Updated Vim syntax highlighting.

v0.2.0 — 2024-12-20

New Features

• Implemented a virtual machine with a bytecode compiler and interpreter.
• read, write, append now support reading and writing from/to binary files as well.
• ! can now evaluate a quotation of integers as hex bytecode.
• Increased maximum stack size to 256 items.
• Improved and consolidated error messages and debug messages.

Fixes

• Ensured that dec is able to print negative integers in decimal format.
• Ensured that symbol identifiers cannot be longer than 256 characters.
• Ensured that all symbols are correctly added to the stack trace.

Chores

• Split the source code to different files, and now relying on an amalgamate.sh script to concatenate them together before compiling

v0.1.0 — 2024-12-14

Initial release, featuring:

• A multi-platform executable for the hex interpreter.
• Integrated REPL.
• Integrated help and manual.
• Debug mode.
• 0x40 (64) native symbols.
• Support for 32bit hexadecimal integers, strings, and quotations (lists).
• A complete web site with more documentation and even an interactive playground.