public static List <ParsedEmailAddress> ExtractFromString(String textToSearch, bool includeReserved = false, bool strict = false)
{
if (String.IsNullOrEmpty(textToSearch))
{
return(new List <ParsedEmailAddress>());
}
//This is the email regex.
//It searches for emails in the format of <Some Person>[email protected]
//We assume that names can only contain letters, numbers, and spaces. We also allow for a blank name, in the form of <>
const string nameRegex = @"[ a-zA-Z0-9]*";
//We assume for now, that emails can only contain letters, numbers, dashes, dots, +. This can be updated in the future (parsing emails is actually incredibly difficult).
//See http://tools.ietf.org/html/rfc2822#section-3.4.1 in the future if we ever update this.
const string emailUserNameRegex = @"[a-zA-Z0-9\!\#\$\%\&\'\*\+\.\-\/\=\?\^_\`\{\|\}\~]+";
//Domains can only contain letters, numbers, or dashes.
const string domainRegex = @"[a-zA-Z0-9\-]+";
//Top level domain must be at least two characters long. Only allows letters, numbers, dashes or dots.
const string tldRegex = @"[a-zA-Z0-9\-\.]{2,}";
//The name part is optional; we can find emails like '*****@*****.**', or '<Robert Rudman>[email protected]'.
//The regex uses named groups; 'name' and 'email'.
//Name will contain the name, without <>. Email will contain the full email address (without the name).
//Typically, you won't need to modify the below code, only the four variables defined above.
var fullRegexExpression = String.Format(@"(<(?<name>{0})>)?(?<email>{1}@{2}\.{3})", nameRegex, emailUserNameRegex, domainRegex, tldRegex);
if (strict)
{
fullRegexExpression = String.Format("^{0}$", fullRegexExpression);
}
var regex = new Regex(fullRegexExpression);
var result = new List <ParsedEmailAddress>();
foreach (Match match in regex.Matches(textToSearch))
{
var parse = new ParsedEmailAddress
{
Name = match.Groups["name"].Value,
Email = match.Groups["email"].Value.ToLower()
};
if (includeReserved || !FilterUtility.IsReservedEmailAddress(parse.Email))
{
result.Add(parse);
}
}
return(result);
}
public List<ParsedEmailAddress> ExtractFromString(String textToSearch, bool includeReserved = false, bool strict = false)
{
if (String.IsNullOrEmpty(textToSearch))
return new List<ParsedEmailAddress>();
//This is the email regex.
//It searches for emails in the format of <Some Person>[email protected]
//We assume that names can only contain letters, numbers, and spaces. We also allow for a blank name, in the form of <>
const string nameRegex = @"[ a-zA-Z0-9]*";
//We assume for now, that emails can only contain letters, numbers, dashes, dots, +. This can be updated in the future (parsing emails is actually incredibly difficult).
//See http://tools.ietf.org/html/rfc2822#section-3.4.1 in the future if we ever update this.
const string emailUserNameRegex = @"[a-zA-Z0-9\!\#\$\%\&\'\*\+\.\-\/\=\?\^_\`\{\|\}\~]+";
//Domains can only contain letters, numbers, or dashes.
const string domainRegex = @"[a-zA-Z0-9\-]+";
//Top level domain must be at least two characters long. Only allows letters, numbers, dashes or dots.
const string tldRegex = @"[a-zA-Z0-9\-\.]{2,}";
//The name part is optional; we can find emails like '*****@*****.**', or '<Robert Rudman>[email protected]'.
//The regex uses named groups; 'name' and 'email'.
//Name will contain the name, without <>. Email will contain the full email address (without the name).
//Typically, you won't need to modify the below code, only the four variables defined above.
var fullRegexExpression = String.Format(@"(<(?<name>{0})>)?(?<email>{1}@{2}\.{3})", nameRegex,emailUserNameRegex, domainRegex, tldRegex);
if (strict)
fullRegexExpression = String.Format("^{0}$", fullRegexExpression);
var regex = new Regex(fullRegexExpression);
var result = new List<ParsedEmailAddress>();
foreach (Match match in regex.Matches(textToSearch))
{
var parse = new ParsedEmailAddress
{
Name = match.Groups["name"].Value,
Email = match.Groups["email"].Value.ToLower()
};
if (includeReserved || !FilterUtility.IsReservedEmailAddress(parse.Email))
result.Add(parse);
}
return result;
}
