Treat <unk> as blank #238

	name: windows-x86

	on:
	push:
	branches:
	- master
	paths:
	- '.github/workflows/windows-x86.yaml'
	- '.github/scripts/run-test.sh'
	- 'CMakeLists.txt'
	- 'cmake/**'
	- 'sherpa-ncnn/csrc/*'
	pull_request:
	branches:
	- master
	paths:
	- '.github/workflows/windows-x86.yaml'
	- '.github/scripts/run-test.sh'
	- 'CMakeLists.txt'
	- 'cmake/**'
	- 'sherpa-ncnn/csrc/*'

	concurrency:
	group: windows-x86-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	windows_x86:
	runs-on: ${{ matrix.os }}
	name: ${{ matrix.vs-version }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- vs-version: vs2015
	toolset-version: v140
	os: windows-2019

	- vs-version: vs2017
	toolset-version: v141
	os: windows-2019

	- vs-version: vs2019
	toolset-version: v142
	os: windows-2022

	- vs-version: vs2022
	toolset-version: v143
	os: windows-2022

	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Configure CMake
	shell: bash
	run: \|
	mkdir build
	cd build
	cmake -T ${{ matrix.toolset-version}},host=x64 -A Win32 -D CMAKE_BUILD_TYPE=Release ..

	- name: Build sherpa for windows
	shell: bash
	run: \|
	cd build
	cmake --build . --config Release -- -m:2

	ls -lh ./bin/Release/sherpa-ncnn.exe
	ls -lh ./bin/Release/decode-file-c-api.exe
	ls -lh ./bin/Release/sherpa-ncnn-microphone.exe

	- name: Test sherpa-ncnn
	shell: bash
	run: \|
	export PATH=$PWD/build/bin/Release:$PATH
	export EXE=sherpa-ncnn.exe

	.github/scripts/run-test.sh

	- name: Test C API
	shell: bash
	run: \|
	export PATH=$PWD/build/bin/Release:$PATH
	export EXE=decode-file-c-api.exe

	.github/scripts/run-test.sh

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