TODO

[user202729]

Things to do:

• implement thread-local engine setting for default_engine
• make sure everything are defined globally (a bit difficult, e.g. https://tex.stackexchange.com/q/357869/250119)
• split newenvironment_verb into helper functions
• split f1 into helper functions to allow customization (e.g. ⟨a:08b⟩?)
• split simple module into parts. Plan:
  • simple_helper: functions that does not need to be used directly at document level but may be useful to define new functions
  • simple_extra: those that can be built with simple_helper and simple_extra (to recommend user to read source code)
  • simple: the rest
• extension modules (e.g. for SageMath)
• some API to manipulate catcodes counts dimens etc.
• Make newenvironment_verb not strip spaces at the end of the line
• Define an environment that gobbles the body in str-type tokenization
• Get arguments delimited
• Get pair-delimited argument (d-type and D-type argument in xparse)
• Function to write to log file (why?)
• Function to parse log file for things such as \showoutput (very hacky...)
• Expandable functions for Lua
• pysub environments, evalz() in Python, etc.
• preprocess pycode to allow using inside command argument (with a few caveats, but still good)
• restore select.select for unnamed pipe or threading to cancel the pipe on timeout
• refactor serialization to allow passing more data in a structured way
• Catch error from ChildProcessEngine
• Give reasonable error on overleaf when files are missing...

[user202729]

Original architecture was a bit of a mess, admittedly.

• move _handlers to engine-specific (update: turns out to be a bit difficult because add_handler is global to all engines)
• move action_done to private
• move a bunch of other things to private