regex - How to parse an 8-bit hexadecimal number and a string using boost C++? -

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I have just started using boost C ++ libraries for some parser work. I would like to use some help on the following:

  1. I have tried to match an 8-bit hexadecimal number: four _ ("0-9a-fA-F ") which matches only one hexadecimal number I also tried to use: * char _ (" 0- 9a-fA-F ") , but also Not working

  2. String with any mailing underscore character? For example, aBCd_Efgh

fact From four_ to boost :: emotion :: qi you just want to use the integer parser:

It is easily used to parse hexadecimals: 

  qi :: int_parser & lt; Unsigned characters, 16, 2, 2 & gt; Hex_byte;

Will match and parse exactly 2 hexadecimal digits in succession.


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