Re: identifying no "From" header

Lloyd Standish schreef:


> The procmail log simply indicates that the second condition line is
> not fulfilled.
>
> Here is the recipe (CC_ contains the previously-extracted Cc header.
> WL is "no"):
>
>  : 0
>  * ! WL ?? ^^yes^^
>  * ^From:([ ]$|$)|!^From:|^From:.*<>
>  {
>      WL="yes"
>      :0 fwh
>      | formail -I"Cc: (no from) ${CC_}"
>  }
At first I thought that you were giving the Cc: header field an invalid
value, but inserting a "(comment)" should cause no problems.
The '!' inside the condition can only be at the start.

  : 0
  * ! WL ?? ^^yes^^
  * ! ^From:
  {
      WL = 'yes'
      :0 fwh
      | formail -I"Cc: (no from) ${CC_}"
  }

will do what you asked, but from your recipe I see that you are not only
interested in a missing From: header field, but also try to detect
whether the From: header field is special.


  WSP = '  '  # 2 characters: space & tab
  OR  = '9876543210^0'

  :0
  *$ ^Cc:.*\/[^$WSP].*
  { H_CC = "$MATCH" }

  : 0
  * ! WL ?? ^^yes^^
  *$ $OR ! ^From:
  *$ $OR   ^From:[$WSP]*$
  *$ $OR   ^From:.*<>
  {
      WL = 'yes'
      :0 fhw
      | formail -I"Cc: (no from) ${H_CC}"
  }

-- 
Grtz, Ruud


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