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[bug #692016] update description of {m,n} modifier; you can omit the lower bound

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Andrew M. Kuchling 2003-03-04 14:12:24 +00:00
parent 85f3227a74
commit 02a0b3b81a
1 changed files with 4 additions and 3 deletions
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7
Doc/lib/libre.tex
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@ -129,9 +129,10 @@ not five.
\item[\code{\{\var{m},\var{n}\}}] Causes the resulting RE to match from
\var{m} to \var{n} repetitions of the preceding RE, attempting to
match as many repetitions as possible. For example, \regexp{a\{3,5\}}
will match from 3 to 5 \character{a} characters. Omitting \var{n}
specifies an infinite upper bound; you can't omit \var{m}. As an
example, \regexp{a\{4,\}b} will match \code{aaaab}, a thousand
will match from 3 to 5 \character{a} characters. Omitting \var{m}
specifies a lower bound of zero,
and omitting \var{n} specifies an infinite upper bound. As an
example, \regexp{a\{4,\}b} will match \code{aaaab} or a thousand
\character{a} characters followed by a \code{b}, but not \code{aaab}.
The comma may not be omitted or the modifier would be confused with
the previously described form.