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@@ -388,7 +388,7 @@ For Layer-2 applications the ability for a receiver to auto-decode the E-PASA vi
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The following regex parses an e-pasa:
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```
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-((?<AccountNumber>(0|[1-9]\d+))(?:(?<ChecksumDelim>-)(?<Checksum>\d{2}))?|(?<AccountName>(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|!|@|#|\$|%|\^|&|\*|\\\(|\\\)|-|\+|\\\{|\\\}|\\\[|\\]|_|\\:|\\"|`|\||\\<|\\>|,|\.|\?|/|~)(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|0|1|2|3|4|5|6|7|8|9|!|@|#|\$|%|\^|&|\*|\\\(|\\\)|-|\+|\\\{|\\\}|\\\[|\\]|_|\\:|\\"|`|\||\\<|\\>|,|\.|\?|/|~)*))(?:(?<PayloadStartChar>[\[\(<\{])(?<PayloadContent>"( |!|\\"|#|\$|%|&|'|\\\(|\\\)|\*|\+|,|-|\.|/|0|1|2|3|4|5|6|7|8|9|\\:|;|\\<|=|\\>|\?|@|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|\\\[|\\\\|\\]|\^|_|`|a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|\\\{|\||\\\}|~)+"|0x(?:[0-9a-f]{2})+|[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+)?(?:(?<PayloadPasswordDelim>:){1}(?<PayloadPassword>( |!|\\"|#|\$|%|&|'|\\\(|\\\)|\*|\+|,|-|\.|/|0|1|2|3|4|5|6|7|8|9|\\:|;|\\<|=|\\>|\?|@|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|\\\[|\\\\|\\]|\^|_|`|a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|\\\{|\||\\\}|~)+)?)?(?<PayloadEndChar>[]\)>\}]))?(?:(?<ExtendedChecksumDelim>:)(?<ExtendedChecksum>[0-9a-f]{2}[0-9a-f]{2}))?
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+((?<AccountNumber>(0|[1-9]\d*))(?:(?<ChecksumDelim>-)(?<Checksum>\d{2}))?|(?<AccountName>(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|!|@|#|\$|%|\^|&|\*|\\\(|\\\)|-|\+|\\\{|\\\}|\\\[|\\]|_|\\:|\\"|`|\||\\<|\\>|,|\.|\?|/|~)(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|0|1|2|3|4|5|6|7|8|9|!|@|#|\$|%|\^|&|\*|\\\(|\\\)|-|\+|\\\{|\\\}|\\\[|\\]|_|\\:|\\"|`|\||\\<|\\>|,|\.|\?|/|~)*))(?:(?<PayloadStartChar>[\[\(<\{])(?<PayloadContent>"( |!|\\"|#|\$|%|&|'|\\\(|\\\)|\*|\+|,|-|\.|/|0|1|2|3|4|5|6|7|8|9|\\:|;|\\<|=|\\>|\?|@|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|\\\[|\\\\|\\]|\^|_|`|a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|\\\{|\||\\\}|~)+"|0x(?:[0-9a-f]{2})*|[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+)?(?:(?<PayloadPasswordDelim>:){1}(?<PayloadPassword>( |!|\\"|#|\$|%|&|'|\\\(|\\\)|\*|\+|,|-|\.|/|0|1|2|3|4|5|6|7|8|9|\\:|;|\\<|=|\\>|\?|@|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|\\\[|\\\\|\\]|\^|_|`|a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|\\\{|\||\\\}|~)+)?)?(?<PayloadEndChar>[]\)>\}]))?(?:(?<ExtendedChecksumDelim>:)(?<ExtendedChecksum>[0-9a-f]{2}[0-9a-f]{2}))?
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```
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After matching with the above regex, the named groups need to be extracted and validated as the below snippet shows
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Herman Schoenfeld