public Copyright(CopyrightTemplate companyTemplate)
{
this.template = companyTemplate;
if (string.IsNullOrWhiteSpace(template.CompanyPattern))
{
template.CompanyPattern = template.Company;
}
var companyPattern = "(?'company'" + template.CompanyPattern + ")";
copyrightName = "© Copyright";
var spacePattern = "(\\s*)";
var singleYearPattern = "(?'singleYear'(19|20)?[0-9][0-9])";
var beginPattern = "(?'begin'.*)";
var endPattern = "(?'end'.*)";
yearSpanPattern = $"(?'spanYear'(?'fromYear'{singleYearPattern})-(?'toYear'{singleYearPattern}))";
yearPattern = $"(({singleYearPattern}|{yearSpanPattern}),{spacePattern})*(?'endYear'({singleYearPattern}|{yearSpanPattern}))";
var copyrightPattern = $"(?'copyright'(©|\\([Cc]\\)){spacePattern}(([Cc]opyright|[Cc]opr.))?)";
multiYearCopyrightPattern = beginPattern + copyrightPattern + spacePattern + yearPattern + spacePattern + companyPattern + endPattern;
}