private const string NonLatinHashtagChars = @"\u0400-\u04ff\u0500-\u0527\u1100-\u11ff\u3130-\u3185\uA960-\uA97F\uAC00-\uD7AF\uD7B0-\uD7FF";
private const string CJHashtagCharacters = @"\u30A1-\u30FA\u30FC\u3005\uFF66-\uFF9F\uFF10-\uFF19\uFF21-\uFF3A\uFF41-\uFF5A\u3041-\u309A\u3400-\u4DBF\p{IsCJKUnifiedIdeographs}";
private const string HashtagBoundary = @"^|$|\s|「|」|。|\.|!";
- private const string HashtagAlpha = "[A-Za-z_" + LatinAccents + NonLatinHashtagChars + CJHashtagCharacters + "]";
- private const string HashtagAlphanumeric = "[A-Za-z0-9_" + LatinAccents + NonLatinHashtagChars + CJHashtagCharacters + "]";
- private const string HashtagTerminator = "[^A-Za-z0-9_" + LatinAccents + NonLatinHashtagChars + CJHashtagCharacters + "]";
- public const string Hashtag = "(" + HashtagBoundary + ")(#|＃)(" + HashtagAlphanumeric + "*" + HashtagAlpha + HashtagAlphanumeric + "*)(?=" + HashtagTerminator + "|" + HashtagBoundary + ")";
+ private const string HashtagAlpha = $"[A-Za-z_{LatinAccents}{NonLatinHashtagChars}{CJHashtagCharacters}]";
+ private const string HashtagAlphanumeric = $"[A-Za-z0-9_{LatinAccents}{NonLatinHashtagChars}{CJHashtagCharacters}]";
+ private const string HashtagTerminator = $"[^A-Za-z0-9_{LatinAccents}{NonLatinHashtagChars}{CJHashtagCharacters}]";
+ public const string Hashtag = $"({HashtagBoundary})(#|＃)({HashtagAlphanumeric}*{HashtagAlpha}{HashtagAlphanumeric}*)(?={HashtagTerminator}|{HashtagBoundary})";
// URL正規表現
private const string UrlValidPrecedingChars = @"(?:[^A-Za-z0-9@＠$#＃\ufffe\ufeff\uffff\u202a-\u202e]|^)";
public const string UrlInvalidWithoutProtocolPrecedingChars = @"[-_./]$";
private const string UrlInvalidDomainChars = @"\!'#%&'\(\)*\+,\\\-\.\/:;<=>\?@\[\]\^_{|}~\$\u2000-\u200a\u0009-\u000d\u0020\u0085\u00a0\u1680\u180e\u2028\u2029\u202f\u205f\u3000\ufffe\ufeff\uffff\u202a-\u202e";
- private const string UrlValidDomainChars = @"[^" + UrlInvalidDomainChars + "]";
- private const string UrlValidSubdomain = @"(?:(?:" + UrlValidDomainChars + @"(?:[_-]|" + UrlValidDomainChars + @")*)?" + UrlValidDomainChars + @"\.)";
- private const string UrlValidDomainName = @"(?:(?:" + UrlValidDomainChars + @"(?:-|" + UrlValidDomainChars + @")*)?" + UrlValidDomainChars + @"\.)";
+ private const string UrlValidDomainChars = $@"[^{UrlInvalidDomainChars}]";
+ private const string UrlValidSubdomain = $@"(?:(?:{UrlValidDomainChars}(?:[_-]|{UrlValidDomainChars})*)?{UrlValidDomainChars}\.)";
+ private const string UrlValidDomainName = $@"(?:(?:{UrlValidDomainChars}(?:-|{UrlValidDomainChars})*)?{UrlValidDomainChars}\.)";
private const string UrlValidGTLD = @"(?:(?:aero|asia|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|tel|travel|xxx)(?=[^0-9a-zA-Z]|$))";
private const string UrlValidCCTLD = @"(?:(?:ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|ss|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|za|zm|zw)(?=[^0-9a-zA-Z]|$))";
private const string UrlValidPunycode = @"(?:xn--[0-9a-z]+)";
- private const string UrlValidDomain = @"(?<domain>" + UrlValidSubdomain + "*" + UrlValidDomainName + "(?:" + UrlValidGTLD + "|" + UrlValidCCTLD + ")|" + UrlValidPunycode + ")";
- public const string UrlValidAsciiDomain = @"(?:(?:[a-z0-9" + LatinAccents + @"]+)\.)+(?:" + UrlValidGTLD + "|" + UrlValidCCTLD + "|" + UrlValidPunycode + ")";
- public const string UrlInvalidShortDomain = "^" + UrlValidDomainName + UrlValidCCTLD + "$";
+ private const string UrlValidDomain = $@"(?<domain>{UrlValidSubdomain}*{UrlValidDomainName}(?:{UrlValidGTLD}|{UrlValidCCTLD})|{UrlValidPunycode})";
+ public const string UrlValidAsciiDomain = $@"(?:(?:[a-z0-9{LatinAccents}]+)\.)+(?:{UrlValidGTLD}|{UrlValidCCTLD}|{UrlValidPunycode})";
+ public const string UrlInvalidShortDomain = $"^{UrlValidDomainName}{UrlValidCCTLD}$";
private const string UrlValidPortNumber = @"[0-9]+";
- private const string UrlValidGeneralPathChars = @"[a-z0-9!*';:=+,.$/%#\[\]\-_~|&" + LatinAccents + "]";
- private const string UrlBalanceParens = @"(?:\(" + UrlValidGeneralPathChars + @"+\))";
- private const string UrlValidPathEndingChars = @"(?:[+\-a-z0-9=_#/" + LatinAccents + "]|" + UrlBalanceParens + ")";
+ private const string UrlValidGeneralPathChars = $@"[a-z0-9!*';:=+,.$/%#\[\]\-_~|&{LatinAccents}]";
+ private const string UrlBalanceParens = $@"(?:\({UrlValidGeneralPathChars}+\))";
+ private const string UrlValidPathEndingChars = $@"(?:[+\-a-z0-9=_#/{LatinAccents}]|{UrlBalanceParens})";
private const string Pth = "(?:" +
"(?:" +
- UrlValidGeneralPathChars + "*" +
- "(?:" + UrlBalanceParens + UrlValidGeneralPathChars + "*)*" +
+ $"{UrlValidGeneralPathChars}*" +
+ $"(?:{UrlBalanceParens}{UrlValidGeneralPathChars}*)*" +
UrlValidPathEndingChars +
- ")|(?:@" + UrlValidGeneralPathChars + "+/)" +
+ $")|(?:@{UrlValidGeneralPathChars}+/)" +
")";
private const string Qry = @"(?<query>\?[a-z0-9!?*'();:&=+$/%#\[\]\-_.,~|]*[a-z0-9_&=#/])?";
- public const string RgUrl = @"(?<before>" + UrlValidPrecedingChars + ")" +
+ public const string RgUrl = $@"(?<before>{UrlValidPrecedingChars})" +
"(?<url>(?<protocol>https?://)?" +
- "(?<domain>" + UrlValidDomain + ")" +
- "(?::" + UrlValidPortNumber + ")?" +
- "(?<path>/" + Pth + "*)?" +
+ $"(?<domain>{UrlValidDomain})" +
+ $"(?::{UrlValidPortNumber})?" +
+ $"(?<path>/{Pth}*)?" +
Qry +
")";
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