diff options
Diffstat (limited to 'doc/manual/expressions/language-operators.xml')
| -rw-r--r-- | doc/manual/expressions/language-operators.xml | 103 |
1 files changed, 95 insertions, 8 deletions
diff --git a/doc/manual/expressions/language-operators.xml b/doc/manual/expressions/language-operators.xml index f1f75093461b..4f11bf52938f 100644 --- a/doc/manual/expressions/language-operators.xml +++ b/doc/manual/expressions/language-operators.xml @@ -15,13 +15,16 @@ weakest binding).</para> <tgroup cols='3'> <thead> <row> + <entry>Name</entry> <entry>Syntax</entry> <entry>Associativity</entry> <entry>Description</entry> + <entry>Precedence</entry> </row> </thead> <tbody> <row> + <entry>Select</entry> <entry><replaceable>e</replaceable> <literal>.</literal> <replaceable>attrpath</replaceable> [ <literal>or</literal> <replaceable>def</replaceable> ] @@ -33,19 +36,25 @@ weakest binding).</para> dot-separated list of attribute names.) If the attribute doesn’t exist, return <replaceable>def</replaceable> if provided, otherwise abort evaluation.</entry> + <entry>1</entry> </row> <row> + <entry>Application</entry> <entry><replaceable>e1</replaceable> <replaceable>e2</replaceable></entry> <entry>left</entry> <entry>Call function <replaceable>e1</replaceable> with argument <replaceable>e2</replaceable>.</entry> + <entry>2</entry> </row> <row> + <entry>Arithmetic Negation</entry> <entry><literal>-</literal> <replaceable>e</replaceable></entry> <entry>none</entry> <entry>Arithmetic negation.</entry> + <entry>3</entry> </row> <row> + <entry>Has Attribute</entry> <entry><replaceable>e</replaceable> <literal>?</literal> <replaceable>attrpath</replaceable></entry> <entry>none</entry> @@ -53,34 +62,69 @@ weakest binding).</para> the attribute denoted by <replaceable>attrpath</replaceable>; return <literal>true</literal> or <literal>false</literal>.</entry> + <entry>4</entry> </row> <row> + <entry>List Concatenation</entry> <entry><replaceable>e1</replaceable> <literal>++</literal> <replaceable>e2</replaceable></entry> <entry>right</entry> <entry>List concatenation.</entry> + <entry>5</entry> </row> <row> + <entry>Multiplication</entry> <entry> <replaceable>e1</replaceable> <literal>*</literal> <replaceable>e2</replaceable>, + </entry> + <entry>left</entry> + <entry>Arithmetic multiplication.</entry> + <entry>6</entry> + </row> + <row> + <entry>Division</entry> + <entry> <replaceable>e1</replaceable> <literal>/</literal> <replaceable>e2</replaceable> </entry> <entry>left</entry> - <entry>Arithmetic multiplication and division.</entry> + <entry>Arithmetic division.</entry> + <entry>6</entry> + </row> + <row> + <entry>Addition</entry> + <entry> + <replaceable>e1</replaceable> <literal>+</literal> <replaceable>e2</replaceable> + </entry> + <entry>left</entry> + <entry>Arithmetic addition.</entry> + <entry>7</entry> </row> <row> + <entry>Subtraction</entry> <entry> - <replaceable>e1</replaceable> <literal>+</literal> <replaceable>e2</replaceable>, <replaceable>e1</replaceable> <literal>-</literal> <replaceable>e2</replaceable> </entry> <entry>left</entry> - <entry>Arithmetic addition and subtraction. String or path concatenation (only by <literal>+</literal>).</entry> + <entry>Arithmetic subtraction.</entry> + <entry>7</entry> </row> <row> + <entry>String Concatenation</entry> + <entry> + <replaceable>string1</replaceable> <literal>+</literal> <replaceable>string2</replaceable> + </entry> + <entry>left</entry> + <entry>String concatenation.</entry> + <entry>7</entry> + </row> + <row> + <entry>Not</entry> <entry><literal>!</literal> <replaceable>e</replaceable></entry> <entry>none</entry> <entry>Boolean negation.</entry> + <entry>8</entry> </row> <row> + <entry>Update</entry> <entry><replaceable>e1</replaceable> <literal>//</literal> <replaceable>e2</replaceable></entry> <entry>right</entry> @@ -89,47 +133,90 @@ weakest binding).</para> <replaceable>e2</replaceable> (with the latter taking precedence over the former in case of equally named attributes).</entry> + <entry>9</entry> </row> <row> + <entry>Less Than</entry> <entry> <replaceable>e1</replaceable> <literal><</literal> <replaceable>e2</replaceable>, - <replaceable>e1</replaceable> <literal>></literal> <replaceable>e2</replaceable>, - <replaceable>e1</replaceable> <literal><=</literal> <replaceable>e2</replaceable>, + </entry> + <entry>none</entry> + <entry>Arithmetic comparison.</entry> + <entry>10</entry> + </row> + <row> + <entry>Less Than or Equal To</entry> + <entry> + <replaceable>e1</replaceable> <literal><=</literal> <replaceable>e2</replaceable> + </entry> + <entry>none</entry> + <entry>Arithmetic comparison.</entry> + <entry>10</entry> + </row> + <row> + <entry>Greater Than</entry> + <entry> + <replaceable>e1</replaceable> <literal>></literal> <replaceable>e2</replaceable> + </entry> + <entry>none</entry> + <entry>Arithmetic comparison.</entry> + <entry>10</entry> + </row> + <row> + <entry>Greater Than or Equal To</entry> + <entry> <replaceable>e1</replaceable> <literal>>=</literal> <replaceable>e2</replaceable> </entry> <entry>none</entry> <entry>Arithmetic comparison.</entry> + <entry>10</entry> + </row> + <row> + <entry>Equality</entry> + <entry> + <replaceable>e1</replaceable> <literal>==</literal> <replaceable>e2</replaceable> + </entry> + <entry>none</entry> + <entry>Equality.</entry> + <entry>11</entry> </row> <row> + <entry>Inequality</entry> <entry> - <replaceable>e1</replaceable> <literal>==</literal> <replaceable>e2</replaceable>, <replaceable>e1</replaceable> <literal>!=</literal> <replaceable>e2</replaceable> </entry> <entry>none</entry> - <entry>Equality and inequality.</entry> + <entry>Inequality.</entry> + <entry>11</entry> </row> <row> + <entry>Logical AND</entry> <entry><replaceable>e1</replaceable> <literal>&&</literal> <replaceable>e2</replaceable></entry> <entry>left</entry> <entry>Logical AND.</entry> + <entry>12</entry> </row> <row> + <entry>Logical OR</entry> <entry><replaceable>e1</replaceable> <literal>||</literal> <replaceable>e2</replaceable></entry> <entry>left</entry> <entry>Logical OR.</entry> + <entry>13</entry> </row> <row> + <entry>Logical Implication</entry> <entry><replaceable>e1</replaceable> <literal>-></literal> <replaceable>e2</replaceable></entry> <entry>none</entry> <entry>Logical implication (equivalent to <literal>!<replaceable>e1</replaceable> || <replaceable>e2</replaceable></literal>).</entry> + <entry>14</entry> </row> </tbody> </tgroup> </table> -</section> \ No newline at end of file +</section> |