Re: Adding fields conditionally to formail call?

On 14 Jan 1998 jari(_dot_)aalto(_at_)poboxes(_dot_)com wrote:
>    Does anyone have ideas how I can "stack" th3e fieds before I
>    call formail. I'm trying to minmize the called formail processes,
> ...
>    But I'd like to call formail only onece with all headers in variables,
>    like this
>
>        field1 = ""     field2 = ""
>        :0
>        * flag1 ?? yes
>        { field1 = "-A \"X-header1: value\"" }
>
>        :0
>        * flag2 ?? yes
>        { field2 = "-A \"X-header2: value\"" }
>
>
>        # Call only formail once with all headers known
>        :0
>        | formail -A "X-my: required" $field1 $field2
>                
>
>    But, This doesn't work, see log below.Ideas?
>    jari
>
>
> procmail: Executing "formail,-A,X-my: 
> required,-A,"X-header1:,value",-A,"X-heade
> r2:,value""
> procmail: Assigning "LASTFOLDER=formail -A X-my: required -A "X-header1: 
> value" 
> -A "X-header2: value""
> Usage: formail [-bczfrktqY] [-D nnn idcache] [-p prefix] [-l folder]
>        [-xXaAiIuU field] [-R ofield nfield]
I've had success using Bourne-shell variable substitution:

        field1='X-header1: value'
        field2='X-header2: value'

        :0fhw
        |formail ${field1:+-A"$field1"} ${field2:+-A"$field2"}

David Hunt