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Added URL to HOWTO page, with reference to Regex HOWTO. 

Corrected error: {,5} is not equivalent to {0,5}.
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Andrew M. Kuchling 1998-10-28 15:44:14 +00:00
parent 1d5f988457
commit c1cea208bc
1 changed files with 6 additions and 6 deletions
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12
Doc/lib/libre.tex
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@ -50,8 +50,9 @@ details of the theory and implementation of regular expressions,
consult the Friedl book referenced below, or almost any textbook about
compiler construction.
A brief explanation of the format of regular expressions follows.
%For further information and a gentler presentation, consult XXX somewhere.
A brief explanation of the format of regular expressions follows. For
further information and a gentler presentation, consult the Regular
Expression HOWTO, accessible from \url{http://www.python.org/doc/howto/}.
Regular expressions can contain both special and ordinary characters.
Most ordinary characters, like \character{A}, \character{a}, or \character{0},
@ -109,10 +110,9 @@ expression will match only \code{'<H1>'}.
\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{m} is the same
as specifying 0 for the lower bound; omitting \var{n} specifies an
infinite upper bound.
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}.
\item[\code{\{\var{m},\var{n}\}?}] Causes the resulting RE to
match from \var{m} to \var{n} repetitions of the preceding RE,