AzureFunctionGithub - 3.cs

public static class CsProjRowExtensions
{
    private const string _referenceIncludeText = "<Reference Include=\"";

    public static bool IsReferenceIncludePattern(this string row)
        => row != null ? new Regex($"{_referenceIncludeText}.*").IsMatch(row.RowWithoutAdditionSignal()) : false;

    public static string RowFormatReferenceInclude(this string row)
    {
        var rowSplit = row.RowWithoutAdditionSignal();

        if (rowSplit is null || rowSplit.Length < _referenceIncludeText.Length) return null;

        var rows = rowSplit.Substring(_referenceIncludeText.Length).Split(',');

        return rows.Length == 0 ? null : rows[0].Split('\"')[0];
    }

    public static bool IsRowAddition(this string row)
        => row != null && row.Length > 1 && row.Substring(0, 1).Equals("+");

    private static string RowWithoutAdditionSignal(this string row)
        => row.IsRowAddition() ? row.Remove(0, 1).TrimStart() : row;

    public static bool IsCsProjFile(this string name)
        => name != null ? new Regex("^.*\\.csproj").IsMatch(name) : false;
}