Minimum Matching
When a pattern-matching operator can match multiple
tokens ($+ and
$+)
sendmail performs
minimum matching. For
example, consider a workspace of xxx.yyy.zzz and an LHS
of:
$+.$+
The first $+
matches only a single token (xxx) but the second
$+ matches
three (yyy, a
dot, and zzz).
This is because the first $+ matches the minimum number of tokens
that it can while still allowing the whole LHS to
match the workspace. Shortly, when we discuss the
RHS, we’ll show why this is important.
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