Regex 101 Answer I10 - Extract repeating hex blocks from a string

Eric Gunnerson s C Compendium Regex 101 Answer I10 Extract | Quick Diets

Eric Gunnerson s C Compendium Regex 101 Answer I10 Extract | Quick Diets — Tue, 09 Jun 2009 14:19:42 GMT

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re: Regex 101 Answer I10 - Extract repeating hex blocks from a string

kbiel — Fri, 17 Mar 2006 02:19:10 GMT

(H'(?<Values>[0-9a-fA-F]{4})[&;])+

re: Regex 101 Answer I10 - Extract repeating hex blocks from a string

Maurits [MSFT] — Tue, 14 Mar 2006 20:22:52 GMT

Er, the + is superfluous on my last regex. Should be:
H'(?<Values>[0-9a-fA-F]{4})(&H'(?<Values>[0-9a-fA-F]{4}))*

or better

H'(?<Values>[0-9a-fA-F]{4}) # first hex number
(
__ & # second and further hex numbers are separated with &
__ H'(?<Values>[0-9a-fA-F]{4}) # second and further hex number
)* # further hex numbers are optional

re: Regex 101 Answer I10 - Extract repeating hex blocks from a string

Maurits [MSFT] — Tue, 14 Mar 2006 20:19:31 GMT

Actually your last pattern misses the final hex number... unless you do something like

r.Match(str + "&")

or

(H'(?<Values>[0-9a-fA-F]{4})&?)+

or

(H'(?<Values>[0-9a-fA-F]{4})(&H'(?<Values>[0-9a-fA-F]{4}))*)+

(...or does that not work? it seems suspicious to have two capturing clauses with the same name...)