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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 \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 \var{m} to \var{n} repetitions of the preceding RE, attempting to
match as many repetitions as possible. For example, \regexp{a\{3,5\}} match as many repetitions as possible. For example, \regexp{a\{3,5\}}
will match from 3 to 5 \character{a} characters. Omitting \var{n} will match from 3 to 5 \character{a} characters. Omitting \var{m}
specifies an infinite upper bound; you can't omit \var{m}. As an specifies a lower bound of zero,
example, \regexp{a\{4,\}b} will match \code{aaaab}, a thousand 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}. \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 comma may not be omitted or the modifier would be confused with
the previously described form. the previously described form.