Fw: Misunderstanding $=

To confuse things further, my original answer to Jim never got the list
(only my response to Philip's answer).  Here's what I was trying to say
earlier.

= = =

Jim wondered,

| I've tried to use a recipe like this to report the size of a mail:

[and we're off to a great start]

| #Toss huge things
| #
| :0
|  * > 500000
| {
|    LOG="Huge mail received: $=
| `formail -XFrom`
| "

Running formail there is unnecessary; better to extract into $MATCH.

|    LOGABSTRACT=all
|    :0
|    $TRASH
| }
|
| but the size logged is always zero.

| The recipe above does indeed toss huge things, so I thought I'd
| be able to get the "score of the last recipe."  What am I missing?

You're missing any scoring.  Read the procmailsc(5) man page to learn about
that.

Here's one approach.  I'm less than fond of it because it is rather
awkwardly laid out:

 :0 # register the size as a score
 * 1^1 > 1
 { } # space between the braces

 SIZE = $= # save the score as the size
 MATCH # clear out any previous value

 :0 # rather than recounting, compare saved size to threshold; extract From:
 * $ $SIZE^0
 * -500000^0
 * .5^0 ^\/From:.+
 {
  LOG="Huge item received: $SIZE bytes
${MATCH-without a From: header}
"
  LOGABSTRACT=all

  :0:
  $TRASH
 }

Here's another; its logic is more streamlined but it counts the bytes twice,

 :0 # if over threshold, register size as a score
 * > 500000
 * 1^1 > 1
 {

  SIZE = $=
  MATCH

  :0
  * ^\/From:.+
  { }

  LOG="Huge item received: $SIZE bytes
${MATCH-without a From: header}
"
  LOGABSTRACT=all

  :0:
  $TRASH
 }




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