Don Hammond wrote,
| A quick test indicates the
| parentheses are not needed to "protect" the \> or \< tokens when
| followed by a + modifier. Is that correct, and are the parentheses
| syntactic sugar, or have I missed something?
I don't know what you mean by "syntactic sugar" and hesitate to respond based
on a guess. If the parentheses are unnecessary, I'd still use them (1) in my
own rcfiles to bring it to my own attention that \< or \> is an atom and to
keep myself from making some sort of editing error that would separate the
backslash from the chevron and (2) in a post here to make what I'm doing
clearer to readers, though I should add something about the parentheses'
being optional when I do that.
For similar reasons, if a regexp ends in a trailing space, I write it as
* restofregexp ()
or
* restofregexp( )
even though procmail would operate identically if I omitted the parentheses.
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