Improve/unify approach to line indexing. #137

	name: Build and Test

	on:
	- pull_request
	- push

	jobs:
	linux:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Configure
	# We enforce -Wdeclaration-after-statement because Qt project needs to
	# build MD4C with Integrity compiler which chokes whenever a declaration
	# is not at the beginning of a block.
	run: CFLAGS='--coverage -g -O0 -Wall -Wdeclaration-after-statement -Werror' cmake -DCMAKE_BUILD_TYPE=Debug -G 'Unix Makefiles' .
	- name: Build
	run: make VERBOSE=1
	- name: Test
	run: ./scripts/run-tests.sh
	- name: Create coverage report
	run: \|
	sudo apt-get install -y lcov
	lcov --directory . --capture --output-file coverage.info
	lcov --remove coverage.info '/usr/*' --output-file coverage.info
	lcov --list coverage.info
	- name: Upload coverage report
	uses: codecov/codecov-action@v3

	windows-32:
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v4
	- uses: microsoft/[email protected]
	- name: Configure
	run: cmake -DCMAKE_BUILD_TYPE=Release -G "Visual Studio 17 2022" -A Win32 .
	- name: Build
	run: msbuild.exe md4c.sln /p:Configuration=Release /p:Platform=Win32

	windows-64:
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v4
	- uses: microsoft/[email protected]
	- name: Configure
	run: cmake -DCMAKE_BUILD_TYPE=Release -G "Visual Studio 17 2022" -A x64 .
	- name: Build
	run: msbuild.exe md4c.sln /p:Configuration=Release /p:Platform=x64

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