{0 Precedence level and associativity of operators}

The following table lists the precedence level of all operator classes
from the highest to the lowest precedence. A few other syntactic constructions
are also listed as references.

{%latex:
%
% Note: the tables below should be kept in sync with the one in
% manual/src/refman/expr.etex .
%
\begin{tabular}{|l|c|}
\hline
Operator class                                       & Associativity \\
\hline
\verb"!"\ldots\quad \verb"~"\ldots\quad                       &  --   \\
\verb"."$\cdots$\verb"()"\quad
  \verb"."$\cdots$\verb"[]"\quad
  \verb"."$\cdots$\verb"{}"                                   &  --   \\
\verb"#"\ldots                                                & left  \\
function application                                          & left  \\
\verb"-"\quad \verb"-."  \quad (prefix)                       &  --   \\
\verb"**"\ldots\quad
   \verb"lsl"\quad \verb"lsr"\quad \verb"asr"                 & right \\
\verb"*"\ldots\quad
   \verb"/"\ldots\quad
   \verb"%"\ldots\quad
   \verb"mod"\quad
   \verb"land"\quad
   \verb"lor"\quad
   \verb"lxor"                                                & left  \\
\verb"+"\ldots\quad \verb"-"\ldots                            & left  \\
\verb"::"                                                     & right \\
\verb"@"\ldots\quad \verb"^"\ldots                            & right \\
\verb"="\ldots\quad
  \verb"<"\ldots\quad
  \verb">"\ldots\quad
  \verb"|"\ldots\quad
  \verb"&"\ldots\quad
  \verb"$"\ldots\quad
  \verb"!="\ldots                                             & left  \\
\verb"&"\quad \verb"&&"                                       & right \\
\verb"or"\quad \verb"||"                                      & right \\
\verb","                                                      &  --   \\
\verb"<-"\quad \verb":="                                      & right \\
\verb"if"                                                     &  --   \\
\verb";"                                                      & right \\
\hline
\end{tabular}
%}

{%html:
<table align=center border=1>
<thead><tr><th>Operator class</th><th>Associativity </th></tr></thead>
<tr><td><code class=code>!&#X2026 ~&#X2026</code>     </td><td>&#X2013</td></tr>
<tr><td><code class=code>.&#X2026() .&#X2026[] .&#X2026{} </code>
                                                      </td><td>&#X2013</td></tr>
<tr><td><code class=code>#&#X2026</code>              </td><td> left </td></tr>
<tr><td><code class=code>function application</code>  </td><td> left </td></tr>
<tr><td><code class=code>- -.</code>                  </td><td>&#X2013</td></tr>
<tr><td><code class=code>**&#X2026 lsl lsr asr </code></td><td> right </td></tr>
<tr><td><code class=code>*&#X2026  /&#X2026 %&#X2026 mod land lor lxor</code>
                                                      </td><td> left  </td></tr>
<tr><td><code class=code>+&#X2026 -&#X2026</code>     </td><td> left  </td></tr>
<tr><td><code class=code>::</code>                    </td><td> right </td></tr>
<tr><td><code class=code>@&#X2026 ^&#X2026            </td><td> right </td></tr>
<tr><td><code class=code>=&#X2026 &lt;&#X2026
>&#X2026 |&#X2026 &amp;&#X2026 $&#X2026 !=</code>     </td><td> left  </td></tr>
<tr><td><code class=code>&amp; &amp;&amp;</code>      </td><td> right </td></tr>
<tr><td><code class=code>or || </code>                </td><td> right </td></tr>
<tr><td><code class=code>,</code>                     </td><td>&#X2013</td></tr>
<tr><td><code class=code><- :=</code>                 </td><td> right </td></tr>
<tr><td><code class=code>if</code>                    </td><td>&#X2013</td></tr>
<tr><td><code class=code>;</code>                     </td><td> right </td></tr>
</table>
%}

{%man:
.IP Associativity
Operator class
.IP -
!.. ~..
.IP -
\&.() .[] .{}
.IP left
#..
.IP left
function application
.IP -
- -.
.IP right
**.. lsl lsr asr
.IP left
*..  /.. %.. mod land lor lxor
.IP left
+.. -..
.IP right
::
.IP right
@.. ^..
.IP left
=.. <.. >.. |.. &.. $.. !=
.IP right
& &&
.IP right
or ||
.IP -
,
.IP right
<- :=
.IP -
if
.IP right
;
%}