Try to fix arrow keys being marked as numpad on Mac. #190

	name: Check for Tabs
	on: [push, pull_request]

	jobs:
	no-tabs:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Fail if tabs are found in source files
	# Exclude specific file types if necessary (e.g., binaries, .md files, etc.)
	run: \|
	# Define folders to check
	FOLDERS=("Common" "SerialPrograms")

	# Define file extensions to check
	EXTENSIONS=("h" "c" "cpp" "tpp")

	echo "Searching for Git-tracked files with tabs..."
	echo "Folders: ${FOLDERS[@]}"
	echo "Extensions: ${EXTENSIONS[@]}"
	echo ""

	# Build git ls-files patterns
	PATTERNS=()
	for folder in "${FOLDERS[@]}"; do
	for ext in "${EXTENSIONS[@]}"; do
	PATTERNS+=("$folder/*/.$ext")
	done
	done

	# Get all matching Git-tracked files
	ALL_FILES=$(git ls-files "${PATTERNS[@]}" 2>/dev/null \| sort -u)

	if [ -z "$ALL_FILES" ]; then
	echo "No Git-tracked source files found to check"
	exit 0
	fi

	echo "Found $(echo "$ALL_FILES" \| wc -l) files to check"
	echo ""

	# Check each file for tabs
	FILES_WITH_TABS=""
	while IFS= read -r file; do
	if [ -f "$file" ] && grep -q $'\t' "$file" 2>/dev/null; then
	FILES_WITH_TABS+="$file"$'\n'
	fi
	done <<< "$ALL_FILES"

	# Check results and print
	if [ -n "$FILES_WITH_TABS" ]; then
	echo "::error::The following files contain tabs:"
	echo ""
	echo "$FILES_WITH_TABS" \| while IFS= read -r file; do
	if [ -n "$file" ]; then
	echo " $file"
	echo "::error file=$file::File contains tabs"
	fi
	done
	echo ""
	echo "Please replace tabs with spaces in the files listed above."
	exit 1
	else
	echo "✓ No tabs found in any Git-tracked source files"
	fi

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