diff options
Diffstat (limited to 'Doc/lib')
| -rw-r--r-- | Doc/lib/libre.tex | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex index 208f8d1..65c47ff 100644 --- a/Doc/lib/libre.tex +++ b/Doc/lib/libre.tex @@ -4,10 +4,10 @@ \bimodindex{re} % XXX Remove before 1.5final release. -{\large\bf This documentation is preliminary and incomplete. If you -find a bug or documentation error, or just find something unclear, -please send a message to -\code{string-sig@python.org}, and we'll fix it.} +%{\large\bf This documentation is preliminary and incomplete. If you +%find a bug or documentation error, or just find something unclear, +%please send a message to +%\code{string-sig@python.org}, and we'll fix it.} This module provides regular expression matching operations similar to those found in Perl. It's 8-bit clean: both patterns and strings may @@ -246,13 +246,13 @@ Python's string literals. equivalent to the set \code{[0-9]}. % \item[\code{\e D}]Matches any non-digit character; this is -equivalent to the set \code{[{\^}0-9]}. +equivalent to the set \code{[\^0-9]}. % \item[\code{\e s}]Matches any whitespace character; this is equivalent to the set \code{[ \e t\e n\e r\e f\e v]}. % \item[\code{\e S}]Matches any non-whitespace character; this is -equivalent to the set \code{[{\^} \e t\e n\e r\e f\e v]}. +equivalent to the set \code{[\^ \e t\e n\e r\e f\e v]}. % \item[\code{\e w}]When the LOCALE flag is not specified, matches any alphanumeric character; this is equivalent to the set \code{[a-zA-Z0-9_]}. With LOCALE, it will match @@ -261,7 +261,7 @@ for the current locale. % \item[\code{\e W}]When the LOCALE flag is not specified, matches any non-alphanumeric character; this is equivalent to the set -\code{[{\^}a-zA-Z0-9_]}. With LOCALE, it will match any character +\code{[\^a-zA-Z0-9_]}. With LOCALE, it will match any character not in the set \code{[0-9_]}, and not defined as a letter for the current locale. @@ -273,6 +273,7 @@ for the current locale. \end{itemize} \subsection{Module Contents} +\nodename{Contents of Module re} The module defines the following functions and constants, and an exception: @@ -287,22 +288,24 @@ The module defines the following functions and constants, and an exception: \var{flags} value. Values can be any of the following variables, combined using bitwise OR (the \code{|} operator). -\begin{itemize} +\begin{description} + +% The use of \quad in the item labels is ugly but adds enough space +% to the label that it doesn't get visually run-in with the text. -\item {I or IGNORECASE or \code{(?i)}} +\item[I or IGNORECASE or \code{(?i)}\quad] -{Perform case-insensitive matching; expressions like \code{[A-Z]} will match +Perform case-insensitive matching; expressions like \code{[A-Z]} will match lowercase letters, too. This is not affected by the current locale. -} -\item {L or LOCALE or \code{(?L)}} -{Make \code{\e w}, \code{\e W}, \code{\e b}, +\item[L or LOCALE or \code{(?L)}\quad] + +Make \code{\e w}, \code{\e W}, \code{\e b}, \code{\e B}, dependent on the current locale. -} -\item {M or MULTILINE or \code{(?m)}} +\item[M or MULTILINE or \code{(?m)}\quad] -{When specified, the pattern character \code{\^} matches at the +When specified, the pattern character \code{\^} matches at the beginning of the string and at the beginning of each line (immediately following each newline); and the pattern character \code{\$} matches at the end of the string and at the end of each line @@ -310,25 +313,24 @@ lowercase letters, too. This is not affected by the current locale. By default, \code{\^} matches only at the beginning of the string, and \code{\$} only at the end of the string and immediately before the newline (if any) at the end of the string. -} -\item {S or DOTALL or \code{(?s)}} +\item[S or DOTALL or \code{(?s)}\quad] -{Make the \code{.} special character any character at all, including a +Make the \code{.} special character any character at all, including a newline; without this flag, \code{.} will match anything \emph{except} -a newline.} +a newline. -\item {X or VERBOSE or \code{(?x)}} +\item[X or VERBOSE or \code{(?x)}\quad] -{Ignore whitespace within the pattern +Ignore whitespace within the pattern except when in a character class or preceded by an unescaped backslash, and, when a line contains a \code{\#} neither in a character class or preceded by an unescaped backslash, all characters from the -leftmost such \code{\#} through the end of the line are ignored. } +leftmost such \code{\#} through the end of the line are ignored. -\end{itemize} +\end{description} - The sequence +The sequence % \bcode\begin{verbatim} prog = re.compile(pat) |