clean up parser code and a lot of other stuff #36

	name: CI

	on:
	pull_request:
	branches: [ "master" ]
	push:
	branches: [ "master" ]
	tags: [ "..*" ]

	jobs:
	runhaskell:
	name: 🛠 Build & Test
	runs-on: ubuntu-latest
	steps:
	- name: 📥 Checkout repository
	uses: actions/checkout@v3
	- name: 🧰 Setup Haskell & Stack
	uses: haskell-actions/setup@v2
	with:
	enable-stack: true
	stack-no-global: true
	stack-version: 'latest'
	- name: 💾 Cache Stack
	id: cache
	uses: actions/cache@v3
	with:
	path: \|
	~/.stack
	key: ${{ runner.os }}-${{ hashFiles('stack.yaml') }}
	- name: 📸 Build Snapshot
	if: steps.cache.outputs.cache-hit != 'true'
	run: \|
	stack --no-terminal test --bench --only-snapshot
	- name: 🔨 Build & Test
	run: \|
	stack --no-terminal test --bench --haddock --no-haddock-deps --no-run-benchmarks --coverage
	mkdir -p dist/haddock && mv $(stack path --local-install-root)/doc/* dist/haddock
	sed -i 's@href="[^"]/doc/$[^"].html$"@href="\1"@g' dist/haddock/index.html
	- name: 🎚 Coverage
	run: \|
	stack hpc report --all --destdir dist/coverage 2>&1 \| tee coverage.log
	coverage=$(cat coverage.log \| tr '\n' ' ' \| sed "s/.* $[0-9]\+$% top-level declarations used.*/\1/")
	color="$(if [[ ${coverage} -ge '80' ]]; then echo 'green'; elif [[ $coverage -ge '60' ]]; then echo 'yellow'; else echo 'red'; fi)"
	wget -O dist/coverage/badge.svg "https://img.shields.io/badge/coverage-${coverage}%25-${color}"
	- name: 📘 Publish Documentation
	if: github.event_name == 'push'
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: dist
	enable_jekyll: true

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