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import { URIRegExps } from "./uri";
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import { merge, subexp } from "./util";
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export function buildExps(isIRI:boolean):URIRegExps {
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	const
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		ALPHA$$ = "[A-Za-z]",
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		CR$ = "[\\x0D]",
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		DIGIT$$ = "[0-9]",
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		DQUOTE$$ = "[\\x22]",
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		HEXDIG$$ = merge(DIGIT$$, "[A-Fa-f]"),  //case-insensitive
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		LF$$ = "[\\x0A]",
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		SP$$ = "[\\x20]",
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		PCT_ENCODED$ = subexp(subexp("%[EFef]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%[89A-Fa-f]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%" + HEXDIG$$ + HEXDIG$$)),  //expanded
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		GEN_DELIMS$$ = "[\\:\\/\\?\\#\\[\\]\\@]",
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		SUB_DELIMS$$ = "[\\!\\$\\&\\'\\(\\)\\*\\+\\,\\;\\=]",
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		RESERVED$$ = merge(GEN_DELIMS$$, SUB_DELIMS$$),
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		UCSCHAR$$ = isIRI ? "[\\xA0-\\u200D\\u2010-\\u2029\\u202F-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF]" : "[]",  //subset, excludes bidi control characters
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		IPRIVATE$$ = isIRI ? "[\\uE000-\\uF8FF]" : "[]",  //subset
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		UNRESERVED$$ = merge(ALPHA$$, DIGIT$$, "[\\-\\.\\_\\~]", UCSCHAR$$),
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		SCHEME$ = subexp(ALPHA$$ + merge(ALPHA$$, DIGIT$$, "[\\+\\-\\.]") + "*"),
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		USERINFO$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:]")) + "*"),
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		DEC_OCTET$ = subexp(subexp("25[0-5]") + "|" + subexp("2[0-4]" + DIGIT$$) + "|" + subexp("1" + DIGIT$$ + DIGIT$$) + "|" + subexp("[1-9]" + DIGIT$$) + "|" + DIGIT$$),
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		DEC_OCTET_RELAXED$ = subexp(subexp("25[0-5]") + "|" + subexp("2[0-4]" + DIGIT$$) + "|" + subexp("1" + DIGIT$$ + DIGIT$$) + "|" + subexp("0?[1-9]" + DIGIT$$) + "|0?0?" + DIGIT$$),  //relaxed parsing rules
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		IPV4ADDRESS$ = subexp(DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$),
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		H16$ = subexp(HEXDIG$$ + "{1,4}"),
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		LS32$ = subexp(subexp(H16$ + "\\:" + H16$) + "|" + IPV4ADDRESS$),
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		IPV6ADDRESS1$ = subexp(                                                            subexp(H16$ + "\\:") + "{6}" + LS32$), //                           6( h16 ":" ) ls32
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		IPV6ADDRESS2$ = subexp(                                                 "\\:\\:" + subexp(H16$ + "\\:") + "{5}" + LS32$), //                      "::" 5( h16 ":" ) ls32
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		IPV6ADDRESS3$ = subexp(subexp(                                 H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{4}" + LS32$), //[               h16 ] "::" 4( h16 ":" ) ls32
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		IPV6ADDRESS4$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,1}" + H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{3}" + LS32$), //[ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
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		IPV6ADDRESS5$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,2}" + H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{2}" + LS32$), //[ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
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		IPV6ADDRESS6$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,3}" + H16$) + "?\\:\\:" +        H16$ + "\\:"          + LS32$), //[ *3( h16 ":" ) h16 ] "::"    h16 ":"   ls32
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		IPV6ADDRESS7$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,4}" + H16$) + "?\\:\\:"                                + LS32$), //[ *4( h16 ":" ) h16 ] "::"              ls32
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		IPV6ADDRESS8$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,5}" + H16$) + "?\\:\\:"                                + H16$ ), //[ *5( h16 ":" ) h16 ] "::"              h16
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		IPV6ADDRESS9$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,6}" + H16$) + "?\\:\\:"                                       ), //[ *6( h16 ":" ) h16 ] "::"
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		IPV6ADDRESS$ = subexp([IPV6ADDRESS1$, IPV6ADDRESS2$, IPV6ADDRESS3$, IPV6ADDRESS4$, IPV6ADDRESS5$, IPV6ADDRESS6$, IPV6ADDRESS7$, IPV6ADDRESS8$, IPV6ADDRESS9$].join("|")),
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		ZONEID$ = subexp(subexp(UNRESERVED$$ + "|" + PCT_ENCODED$) + "+"),  //RFC 6874
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		IPV6ADDRZ$ = subexp(IPV6ADDRESS$ + "\\%25" + ZONEID$),  //RFC 6874
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		IPV6ADDRZ_RELAXED$ = subexp(IPV6ADDRESS$ + subexp("\\%25|\\%(?!" + HEXDIG$$ + "{2})") + ZONEID$),  //RFC 6874, with relaxed parsing rules
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		IPVFUTURE$ = subexp("[vV]" + HEXDIG$$ + "+\\." + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:]") + "+"),
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		IP_LITERAL$ = subexp("\\[" + subexp(IPV6ADDRZ_RELAXED$ + "|" + IPV6ADDRESS$ + "|" + IPVFUTURE$) + "\\]"),  //RFC 6874
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		REG_NAME$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$)) + "*"),
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		HOST$ = subexp(IP_LITERAL$ + "|" + IPV4ADDRESS$ + "(?!" + REG_NAME$ + ")" + "|" + REG_NAME$),
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		PORT$ = subexp(DIGIT$$ + "*"),
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		AUTHORITY$ = subexp(subexp(USERINFO$ + "@") + "?" + HOST$ + subexp("\\:" + PORT$) + "?"),
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		PCHAR$ = subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@]")),
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		SEGMENT$ = subexp(PCHAR$ + "*"),
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		SEGMENT_NZ$ = subexp(PCHAR$ + "+"),
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		SEGMENT_NZ_NC$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\@]")) + "+"),
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		PATH_ABEMPTY$ = subexp(subexp("\\/" + SEGMENT$) + "*"),
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		PATH_ABSOLUTE$ = subexp("\\/" + subexp(SEGMENT_NZ$ + PATH_ABEMPTY$) + "?"),  //simplified
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		PATH_NOSCHEME$ = subexp(SEGMENT_NZ_NC$ + PATH_ABEMPTY$),  //simplified
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		PATH_ROOTLESS$ = subexp(SEGMENT_NZ$ + PATH_ABEMPTY$),  //simplified
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		PATH_EMPTY$ = "(?!" + PCHAR$ + ")",
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		PATH$ = subexp(PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$),
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		QUERY$ = subexp(subexp(PCHAR$ + "|" + merge("[\\/\\?]", IPRIVATE$$)) + "*"),
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		FRAGMENT$ = subexp(subexp(PCHAR$ + "|[\\/\\?]") + "*"),
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		HIER_PART$ = subexp(subexp("\\/\\/" + AUTHORITY$ + PATH_ABEMPTY$) + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$),
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		URI$ = subexp(SCHEME$ + "\\:" + HIER_PART$ + subexp("\\?" + QUERY$) + "?" + subexp("\\#" + FRAGMENT$) + "?"),
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		RELATIVE_PART$ = subexp(subexp("\\/\\/" + AUTHORITY$ + PATH_ABEMPTY$) + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_EMPTY$),
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		RELATIVE$ = subexp(RELATIVE_PART$ + subexp("\\?" + QUERY$) + "?" + subexp("\\#" + FRAGMENT$) + "?"),
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		URI_REFERENCE$ = subexp(URI$ + "|" + RELATIVE$),
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		ABSOLUTE_URI$ = subexp(SCHEME$ + "\\:" + HIER_PART$ + subexp("\\?" + QUERY$) + "?"),
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		GENERIC_REF$ = "^(" + SCHEME$ + ")\\:" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
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		RELATIVE_REF$ = "^(){0}" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
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		ABSOLUTE_REF$ = "^(" + SCHEME$ + ")\\:" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?$",
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		SAMEDOC_REF$ = "^" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
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		AUTHORITY_REF$ = "^" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?$"
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	;
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	return {
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		NOT_SCHEME : new RegExp(merge("[^]", ALPHA$$, DIGIT$$, "[\\+\\-\\.]"), "g"),
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		NOT_USERINFO : new RegExp(merge("[^\\%\\:]", UNRESERVED$$, SUB_DELIMS$$), "g"),
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		NOT_HOST : new RegExp(merge("[^\\%\\[\\]\\:]", UNRESERVED$$, SUB_DELIMS$$), "g"),
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		NOT_PATH : new RegExp(merge("[^\\%\\/\\:\\@]", UNRESERVED$$, SUB_DELIMS$$), "g"),
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		NOT_PATH_NOSCHEME : new RegExp(merge("[^\\%\\/\\@]", UNRESERVED$$, SUB_DELIMS$$), "g"),
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		NOT_QUERY : new RegExp(merge("[^\\%]", UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@\\/\\?]", IPRIVATE$$), "g"),
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		NOT_FRAGMENT : new RegExp(merge("[^\\%]", UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@\\/\\?]"), "g"),
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		ESCAPE : new RegExp(merge("[^]", UNRESERVED$$, SUB_DELIMS$$), "g"),
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		UNRESERVED : new RegExp(UNRESERVED$$, "g"),
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		OTHER_CHARS : new RegExp(merge("[^\\%]", UNRESERVED$$, RESERVED$$), "g"),
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		PCT_ENCODED : new RegExp(PCT_ENCODED$, "g"),
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		IPV4ADDRESS : new RegExp("^(" + IPV4ADDRESS$ + ")$"),
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		IPV6ADDRESS : new RegExp("^\\[?(" + IPV6ADDRESS$ + ")" + subexp(subexp("\\%25|\\%(?!" + HEXDIG$$ + "{2})") + "(" + ZONEID$ + ")") + "?\\]?$")  //RFC 6874, with relaxed parsing rules
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	};
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}
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export default buildExps(false);