fix parsing filter values #36

	## Based on https://github.com/actions-rs/meta/blob/master/recipes/quickstart.md
	name: Check

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	test:
	strategy:
	matrix:
	os: [ ubuntu-latest, windows-latest ]
	name: Test
	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout sources
	uses: actions/checkout@v2

	- name: Install nightly toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: nightly
	override: true
	components: clippy, rustfmt

	- uses: Swatinem/rust-cache@v2

	- name: Build
	uses: actions-rs/cargo@v1
	with:
	command: build
	args: --all --all-targets

	- name: Run tests
	uses: actions-rs/cargo@v1
	with:
	command: test

	- name: Lint
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --all -- -D warnings

	- name: Check Rust formatting
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

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