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Guido van Rossum 1997-12-22 22:41:40 +00:00
parent 9597daf220
commit 0148bbf966
2 changed files with 30 additions and 4 deletions
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17
Doc/lib/libre.tex
View File

@ -118,6 +118,18 @@ Adding \code{?} after the qualifier makes it perform the match in
possible will be matched. Using \code{.*?} in the previous
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, \code{a\{3,5\}}
will match from 3 to 5 'a' characters.
%
\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 \emph{few} repetitions as possible. This is
the non-greedy version of the previous qualifier. For example, on the
6-character string 'aaaaaa', \code{a\{3,5\}} will match 5 'a'
characters, while \code{a\{3,5\}?} will only match 3 characters.
%
\item[\code{\e}] Either escapes special characters (permitting you to match
characters like '*?+\&\$'), or signals a special sequence; special
sequences are discussed below.
@ -346,14 +358,15 @@ expression will be used several times in a single program.
\begin{funcdesc}{match}{pattern\, string\optional{\, flags}}
If zero or more characters at the beginning of \var{string} match
the regular expression \var{pattern}, return a corresponding
\code{Match} object. Return \code{None} if the string does not
\code{MatchObject} instance. Return \code{None} if the string does not
match the pattern; note that this is different from a zero-length
match.
\end{funcdesc}
\begin{funcdesc}{search}{pattern\, string\optional{\, flags}}
Scan through \var{string} looking for a location where the regular
expression \var{pattern} produces a match. Return \code{None} if no
expression \var{pattern} produces a match, and return a corresponding \code{MatchObject} instance.
Return \code{None} if no
position in the string matches the pattern; note that this is
different from finding a zero-length match at some point in the string.
\end{funcdesc}

17
Doc/libre.tex
View File

@ -118,6 +118,18 @@ Adding \code{?} after the qualifier makes it perform the match in
possible will be matched. Using \code{.*?} in the previous
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, \code{a\{3,5\}}
will match from 3 to 5 'a' characters.
%
\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 \emph{few} repetitions as possible. This is
the non-greedy version of the previous qualifier. For example, on the
6-character string 'aaaaaa', \code{a\{3,5\}} will match 5 'a'
characters, while \code{a\{3,5\}?} will only match 3 characters.
%
\item[\code{\e}] Either escapes special characters (permitting you to match
characters like '*?+\&\$'), or signals a special sequence; special
sequences are discussed below.
@ -346,14 +358,15 @@ expression will be used several times in a single program.
\begin{funcdesc}{match}{pattern\, string\optional{\, flags}}
If zero or more characters at the beginning of \var{string} match
the regular expression \var{pattern}, return a corresponding
\code{Match} object. Return \code{None} if the string does not
\code{MatchObject} instance. Return \code{None} if the string does not
match the pattern; note that this is different from a zero-length
match.
\end{funcdesc}
\begin{funcdesc}{search}{pattern\, string\optional{\, flags}}
Scan through \var{string} looking for a location where the regular
expression \var{pattern} produces a match. Return \code{None} if no
expression \var{pattern} produces a match, and return a corresponding \code{MatchObject} instance.
Return \code{None} if no
position in the string matches the pattern; note that this is
different from finding a zero-length match at some point in the string.
\end{funcdesc}