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Convert operator precedence table to the new style markup. 

Added lambda to the table.
Call "**" exponentiation instead of power.

{\em ...} --> \emph{...}
This commit is contained in:
Fred Drake 1998-07-27 20:27:53 +00:00
parent 6f5bf8d59a
commit 9ad9c9be03
1 changed files with 45 additions and 45 deletions
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90
Doc/ref/ref5.tex
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@ -137,7 +137,7 @@ occurrences of the empty tuple may or may not yield the same object).
Note that tuples are not formed by the parentheses, but rather by use
of the comma operator. The exception is the empty tuple, for which
parentheses {\em are} required --- allowing unparenthesized ``nothing''
parentheses \emph{are} required --- allowing unparenthesized ``nothing''
in expressions would cause ambiguities and allow common typos to
pass uncaught.
\index{comma}
@ -687,7 +687,7 @@ C, \code{!=} is preferred; where \code{!=} is mentioned below
The operators {\tt "<", ">", "==", ">=", "<="}, and {\tt "!="} compare
the values of two objects. The objects needn't have the same type.
If both are numbers, they are coverted to a common type. Otherwise,
objects of different types {\em always} compare unequal, and are
objects of different types \emph{always} compare unequal, and are
ordered consistently but arbitrarily.
(This unusual definition of comparison was used to simplify the
@ -834,7 +834,7 @@ list. The expressions are evaluated from left to right.
\obindex{tuple}
The trailing comma is required only to create a single tuple (a.k.a. a
{\em singleton}); it is optional in all other cases. A single
\emph{singleton}); it is optional in all other cases. A single
expression (expression) without a trailing comma doesn't create a
tuple, but rather yields the value of that expression (expression).
(To create an empty tuple, use an empty pair of parentheses:
@ -850,46 +850,46 @@ the syntax is explicitly given, operators are binary. Operators in
the same box group left to right (except for comparisons, which
chain from left to right --- see above).
\begin{center}
\begin{tabular}{|c|c|}
\begin{tableii}{c|c}{textrm}{Operator}{Description}
\lineii{\keyword{lambda}} {Lambda expression}
\hline
\lineii{\keyword{or}} {Boolean OR}
\hline
\lineii{\keyword{and}} {Boolean AND}
\hline
\lineii{\keyword{not} \var{x}} {Boolean NOT}
\hline
\lineii{\keyword{in}, \keyword{not} \keyword{in}}{Membership tests}
\lineii{\keyword{is}, \keyword{is not}}{Identity tests}
\lineii{\code{<}, \code{<=}, \code{>}, \code{>=},
\code{<>}, \code{!=}, \code{==}}%
{Comparisons}
\hline
\lineii{\code{|}} {Bitwise OR}
\hline
\lineii{\code{\^}} {Bitwise XOR}
\hline
\lineii{\code{\&}} {Bitwise AND}
\hline
\lineii{\code{<<}, \code{>>}} {Shifts}
\hline
\lineii{\code{+}, \code{-}}{Addition and subtraction}
\hline
\lineii{\code{*}, \code{/}, \code{\%}}%
{Multiplication, division, remainder}
\hline
\lineii{\code{**}} {Exponentiation}
\hline
\lineii{\code{+\var{x}}, \code{-\var{x}}} {Positive, negative}
\lineii{\code{\~\var{x}}} {Bitwise not}
\hline
\lineii{\code{\var{x}.\var{attribute}}} {Attribute reference}
\lineii{\code{\var{x}[\var{index}]}} {Subscription}
\lineii{\code{\var{x}[\var{index}:\var{index}]}} {Slicing}
\lineii{\code{\var{f}(\var{arguments}...)}} {Function call}
\hline
\keyword{or} & Boolean OR \\
\hline
\keyword{and} & Boolean AND \\
\hline
\keyword{not} \var{x} & Boolean NOT \\
\hline
\keyword{in}, \keyword{not} \keyword{in} & Membership tests \\
\keyword{is}, \keyword{is not} & Identity tests \\
\code{<}, \code{<=}, \code{>}, \code{>=}, \code{<>}, \code{!=}, \code{==} &
Comparisons \\
\hline
\code{|} & Bitwise OR \\
\hline
\code{\^} & Bitwise XOR \\
\hline
\code{\&} & Bitwise AND \\
\hline
\code{<<}, \code{>>} & Shifts \\
\hline
\code{+}, \code{-} & Addition and subtraction \\
\hline
\code{*}, \code{/}, \code{\%} & Multiplication, division, remainder \\
\hline
\code{**} & Power \\
\hline
\code{+\var{x}}, \code{-\var{x}} & Positive, negative \\
\code{\~\var{x}} & Bitwise not \\
\hline
\code{\var{x}.\var{attribute}} & Attribute reference \\
\code{\var{x}[\var{index}]} & Subscription \\
\code{\var{x}[\var{index}:\var{index}]} & Slicing \\
\code{\var{f}(\var{arguments}...)} & Function call \\
\hline
\code{(\var{expressions}\ldots)} & Binding or tuple display \\
\code{[\var{expressions}\ldots]} & List display \\
\code{\{\var{key}:\var{datum}\ldots\}} & Dictionary display \\
\code{`\var{expressions}\ldots`} & String conversion \\
\hline
\end{tabular}
\end{center}
\lineii{\code{(\var{expressions}\ldots)}} {Binding or tuple display}
\lineii{\code{[\var{expressions}\ldots]}} {List display}
\lineii{\code{\{\var{key}:\var{datum}\ldots\}}}{Dictionary display}
\lineii{\code{`\var{expressions}\ldots`}} {String conversion}
\end{tableii}