/// <summary>
/// Formats PascalCase (upper CamelCase) and (lower) camelCase words to a friendly format separated by the given delimiter (space by default).
/// </summary>
/// <param name="input">CamelCase input to format</param>
/// <param name="delimiter">Delimiter to use for formatting (space by default)</param>
/// <param name="capitalizeFirstCharacter">Capitalize the first character for (lower) camelCase words (false by default)</param>
public static string FormatCamelCase(string input, string delimiter = " ", CamelCaseOptions camelCaseOptions = CamelCaseOptions.None)
{
if (String.IsNullOrEmpty(delimiter))
{
throw new ArgumentException("Delimiter can't be null or empty", "delimiter");
}
string result;
if (camelCaseOptions.HasFlag(CamelCaseOptions.CapitalizeFirstCharacter) || camelCaseOptions.HasFlag(CamelCaseOptions.CapitalizeFirstCharacterInvariantCulture))
{
result = _formatCamelCaseCapitalizeRegex.Replace(input, m => EvaluateCamelCaseMatchWithCapitalization(m, delimiter, camelCaseOptions));
}
else
{
var replacement = delimiter + "$1";
result = _formatCamelCaseRegex.Replace(input, replacement);
}
return result;
}
/// <summary>
/// Formats PascalCase (upper CamelCase) and (lower) camelCase words to a friendly format separated by the given delimiter (space by default).
/// </summary>
/// <param name="input">CamelCase input to format</param>
/// <param name="delimiter">Delimiter to use for formatting (space by default)</param>
/// <param name="capitalizeFirstCharacter">Capitalize the first character for (lower) camelCase words (false by default)</param>
public static string FormatCamelCase(string input, string delimiter = " ", CamelCaseOptions camelCaseOptions = CamelCaseOptions.None)
{
if (String.IsNullOrEmpty(delimiter))
{
throw new ArgumentException("Delimiter can't be null or empty", "delimiter");
}
string result;
if (camelCaseOptions.HasFlag(CamelCaseOptions.CapitalizeFirstCharacter) || camelCaseOptions.HasFlag(CamelCaseOptions.CapitalizeFirstCharacterInvariantCulture))
{
result = _formatCamelCaseCapitalizeRegex.Replace(input, m => EvaluateCamelCaseMatchWithCapitalization(m, delimiter, camelCaseOptions));
}
else
{
var replacement = delimiter + "$1";
result = _formatCamelCaseRegex.Replace(input, replacement);
}
return(result);
}
private static string EvaluateCamelCaseMatchWithCapitalization(Match m, string delimiter, CamelCaseOptions options)
{
string result;
if (m.Groups["LowerCaseChar"].Value != String.Empty)
{
if (options.HasFlag(CamelCaseOptions.CapitalizeFirstCharacterInvariantCulture))
{
result = m.Groups["LowerCaseChar"].Value.ToUpperInvariant();
}
else
{
result = m.Groups["LowerCaseChar"].Value.ToUpper();
}
}
else
{
result = delimiter + m.Groups[1].Value;
}
return(result);
}
private static string EvaluateCamelCaseMatchWithCapitalization(Match m, string delimiter, CamelCaseOptions options)
{
string result;
if (m.Groups["LowerCaseChar"].Value != String.Empty)
{
if (options.HasFlag(CamelCaseOptions.CapitalizeFirstCharacterInvariantCulture))
{
result = m.Groups["LowerCaseChar"].Value.ToUpperInvariant();
}
else
{
result = m.Groups["LowerCaseChar"].Value.ToUpper();
}
}
else
{
result = delimiter + m.Groups[1].Value;
}
return result;
}