[EXIM] Additional string/token function for exim

Philip,

I'm finally having to give in and implement a string function to extract a
section from a token separated string - ie like getting components out of
a passwd line.

I was thinking of making this something like:-
    ${token{<field>}{<sep>}{<string>}}

where:-
  <field>    - numeric field id >= 0 (first field is zero)
  <sep>        - class of characters acting as separators (as in strtok(2)
          or strchr(2))
  <string>    - string to parse

so in a passwd like line,
    ${token{5}{:}{<line>}}
would extract the home directory.

Are there any problems with this? Syntax/Name OK?? Any suggestions for a
better solution? etc...

    Nigel.
-- 
[ Nigel.Metheringham@???   -  Systems Software Engineer ]
[ Tel : +44 113 251 6012                   Fax : +44 113 234 6065 ]
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