private static string FormatName(string name, UnderscoreConvention underscoring)
{
switch (underscoring)
{
case UnderscoreConvention.Prefix:
return(name.Length > 0 && name[0] != '_'
? '_' + name : name);
case UnderscoreConvention.Separate:
StringBuilder sb = null;
for (int i = 1; i < name.Length; ++i)
{
char ch = name[i];
if (char.IsUpper(ch))
{
if (sb == null)
{
sb = new StringBuilder();
sb.Append(name, 0, i);
}
sb.Append('_');
}
if (sb != null)
{
sb.Append(ch);
}
}
return(sb != null?sb.ToString() : name);
default:
return(name);
}
}
static void TestNamingCase(string baseName, NamingConvention testCase, UnderscoreConvention testUnder, string expected)
{
var attribute = new JsonMemberNamingConventionAttribute(testCase, testUnder);
var property = CreateTestProperty(baseName);
IPropertyDescriptorCustomization customization = attribute;
customization.Apply(property);
Assert.AreEqual(expected, property.CustomizedName);
}
void IPropertyDescriptorCustomization.Apply(PropertyDescriptor property)
{
if (property == null)
{
throw new ArgumentNullException("property");
}
NamingConvention naming = Convention;
UnderscoreConvention underscoring = Underscores;
if (naming == NamingConvention.None && underscoring == UnderscoreConvention.None)
{
return;
}
SetName(property, FormatName(FormatName(property.Name, underscoring), naming));
}
public JsonMemberNamingConventionAttribute(NamingConvention naming, UnderscoreConvention underscores)
{
_convention = naming;
_underscores = underscores;
}
private static string FormatName(string name, UnderscoreConvention underscoring)
{
switch (underscoring)
{
case UnderscoreConvention.Prefix:
return name.Length > 0 && name[0] != '_'
? '_' + name : name;
case UnderscoreConvention.Separate:
StringBuilder sb = null;
for (int i = 1; i < name.Length; ++i)
{
char ch = name[i];
if (char.IsUpper(ch))
{
if (sb == null)
{
sb = new StringBuilder();
sb.Append(name, 0, i);
}
sb.Append('_');
}
if (sb != null) sb.Append(ch);
}
return sb != null ? sb.ToString() : name;
default:
return name;
}
}
private static void TestNamingCase(string baseName, NamingConvention testCase, UnderscoreConvention testUnder, string expected)
{
JsonMemberNamingConventionAttribute attribute = new JsonMemberNamingConventionAttribute(testCase, testUnder);
TestPropertyDescriptor property = CreateTestProperty(baseName);
IPropertyDescriptorCustomization customization = attribute;
customization.Apply(property);
Assert.AreEqual(expected, property.CustomizedName);
}
public JsonMemberNamingConventionAttribute(NamingConvention naming, UnderscoreConvention underscores)
{
_convention = naming;
_underscores = underscores;
}
