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Issue 294: fn:remove() #313

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Jan 24, 2023
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Issue 294: fn:remove() #313

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35 changes: 27 additions & 8 deletions specifications/xpath-functions-40/src/function-catalog.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -5268,6 +5268,9 @@ Tak, tak, tak! - da kommen sie.
</fos:test>
</fos:example>
</fos:examples>
<fos:history>
<fos:version version="4.0">Proposed change for 4.0: allow second argument to be an empty sequence.</fos:version>
</fos:history>
</fos:function>
<fos:function name="analyze-string" prefix="fn">
<fos:signatures>
Expand Down Expand Up @@ -11133,7 +11136,7 @@ let $newi := $o/tool</eg>
<fos:signatures>
<fos:proto name="remove" return-type="item()*">
<fos:arg name="input" type="item()*" usage="transmission"/>
<fos:arg name="position" type="xs:integer"/>
<fos:arg name="positions" type="xs:integer*"/>
</fos:proto>
</fos:signatures>
<fos:properties>
Expand All @@ -11142,18 +11145,19 @@ let $newi := $o/tool</eg>
<fos:property>focus-independent</fos:property>
</fos:properties>
<fos:summary>
<p>Returns a new sequence containing all the items of <code>$input</code> except the item
at position <code>$position</code>.</p>
<p>Returns a new sequence containing all the items of <code>$input</code> <phrase diff="chg" at="2023-01-17">except those
at specified positions</phrase>.</p>
</fos:summary>
<fos:rules>
<p>The function returns a sequence consisting of all items of <code>$input</code> whose
1-based position is less than <code>$position</code>, followed by all items of <code>$target</code>
whose 1-based position is greater than <code>$position</code>. </p>
<p>The function returns a sequence consisting of all items of <code>$input</code> <phrase diff="chg" at="2023-01-17">whose
1-based position is not equal to any of the integers in <code>$positions</code>. </phrase></p>
<p diff="add" at="2023-01-17">More formally, the function returns the result of the expression <code>$input[not(position() = $positions)]</code>.</p>
</fos:rules>
<fos:notes>
<p>If <code>$position</code> is less than 1 or greater than the number of items in
<code>$input</code>, <code>$input</code> is returned.</p>
<p diff="chg" at="2023-01-17">Any integer in <code>$positions</code> that is less than 1 or greater than the number of items in
<code>$input</code> is effectively ignored.</p>
<p>If <code>$input</code> is the empty sequence, the empty sequence is returned.</p>
<p diff="add" at="2023-01-17">If <code>$positions</code> is an empty sequence, the input sequence <code>$input</code> is returned unchanged.</p>
</fos:notes>
<fos:examples>
<fos:variable id="v-remove-abc" name="abc"
Expand Down Expand Up @@ -11182,7 +11186,22 @@ let $newi := $o/tool</eg>
<fos:result>()</fos:result>
</fos:test>
</fos:example>
<fos:example>
<fos:test use="v-remove-abc">
<fos:expression>fn:remove($abc, 2 to 3)</fos:expression>
<fos:result>"a"</fos:result>
</fos:test>
</fos:example>
<fos:example>
<fos:test use="v-remove-abc">
<fos:expression>fn:remove($abc, ())</fos:expression>
<fos:result>("a", "b", "c")</fos:result>
</fos:test>
</fos:example>
</fos:examples>
<fos:history>
<fos:version version="4.0">Proposed change for 4.0: allow second argument to be a sequence of integers.</fos:version>
</fos:history>
</fos:function>
<fos:function name="head" prefix="fn">
<fos:signatures>
Expand Down