Where I suggested this way of setting a variable to space-tab-newline
to Jari Aalto,
WSPACE = " "'
or some of you may prefer this:
WSPACE = ' '"
Ed Sabol's recommendation was this:
WSPACE = "
which he detailed as follows:
| (That's "WSPACE = ", then a double-quote, a space, and a tab, then hit the
| return key, then another double-quote.)
I'd be hesitant to use that. First, I'm not sure procmail will preserve the
trailing whitespace; it may not work in the first place. Second, since I
can't see the trailing whitespace when I'm reading or editing the rcfile,
I risk deleting it or changing it to a different whitespace-only string.
In my own rcfiles I've made a consistent practice of making trailing spaces
in regexps apparent to my eyes. Here are several ways:
* rest of string( )
* (rest of string )
* rest of string ()
* rest of string[ ]
The third is probably the one procmail can handle the most efficiently.