/// <summary>
/// 根据大小写规则转换名称
/// </summary>
/// <param name="name">类型名或者属性名</param>
/// <param name="strategy">列名映射策略</param>
/// <param name="rule">大小写规则</param>
/// <returns></returns>
private static string Parse(string name, DbIdentifierMappingStrategy strategy, CapitalizationRule rule)
{
var result = Parse(name, strategy);
switch (rule)
{
case CapitalizationRule.LowerCase:
return(result.ToLower());
case CapitalizationRule.UpperCase:
return(result.ToUpper());
case CapitalizationRule.Original:
return(result);
}
return(result.ToLower());
}
/// <summary>
/// 根据列名映射策略转换名称
/// </summary>
/// <param name="name">类型名或者属性名</param>
/// <param name="strategy">列名映射策略</param>
/// <returns></returns>
private static string Parse(string name, DbIdentifierMappingStrategy strategy)
{
if (strategy == DbIdentifierMappingStrategy.PascalCase)
{
return(name);
}
var array = name.ToCharArray();
var length = array.Length;
var builder = new StringBuilder().Append(array[0]);
var position = -1;
for (var i = 1; i < length; i++)
{
var current = array[i];
var prev = array[i - 1];
if (char.IsUpper(current))
{
if (char.IsLower(prev))
{
builder.Append("_").Append(current);
position = -1;
}
else
{
builder.Append(current);
position = i;
}
}
else
{
builder.Append(current);
}
}
if (position > 0 && char.IsLower(array[position]))
{
builder.Insert(position - 1, "_");
}
return(builder.ToString());
}
