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more function help improvements
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‎resources/function_help/$area-de_DE

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<h3>Funktion $area</h3>
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Liefert den Flächeninhalt des aktuellen Objekts
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<h4>Syntax</h4>
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<pre>$area</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$area &rarr; 4711.42</pre>
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‎resources/function_help/$area-en_US

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<h3>$area function</h3>
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Returns the area size of the current feature.
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<h4>Syntax</h4>
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<pre>$area</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$area &rarr; 42</pre>
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‎resources/function_help/$id-de_DE

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<h3>Funktion $id</h3>
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Liefert die Feature-ID des aktuellen Objekts zurück.
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<h4>Syntax</h4>
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<pre>$id</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$id &rarr; 42</pre>
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‎resources/function_help/$id-en_US

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<h3>$id function</h3>
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Returns the feature id of the current row.
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<h4>Syntax</h4>
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<pre>$id</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$id &rarr; 42</pre>
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‎resources/function_help/$length-de_DE

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<h3>Funktion $length</h3>
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Liefert die Länge der aktuellen Geometrie.
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<h4>Syntax</h4>
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<pre>$length</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$length &rarr; 42.4711</pre>
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‎resources/function_help/$length-en_US

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<h3>$length function</h3>
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Returns the length the current feature.
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<h4>Syntax</h4>
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<pre>$length</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$length &rarr; 42.4711</pre>
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‎resources/function_help/$perimeter-de_DE

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<h3>Funktion $perimeter</h3>
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Liefert den Umfang des aktuellen Objekts zurück.
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<h4>Syntax</h4>
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<pre>$perimeter</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$perimeter &rarr; 42</pre>
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‎resources/function_help/$perimeter-en_US

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<h3>$perimeter function</h3>
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Returns the perimeter length of the current feature.
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<h4>Syntax</h4>
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<pre>$perimeter</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$perimeter &rarr; 42</pre>
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‎resources/function_help/$rownum-de_DE

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<h3>Funktion $rownum</h3>
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Ergibt die Zeilennummer des aktuellen Datensatzes
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<h4>Syntax</h4>
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<pre>$rownum</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$rownum &rarr; 4711</pre>

‎resources/function_help/$rownum-en_US

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<h3>$rownum function</h3>
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Returns the number of the current row.
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<h4>Syntax</h4>
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<pre>$rownum</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$rownum &rarr; 4711</pre>
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‎resources/function_help/$x-de_DE

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<h3>Funktion $x</h3>
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Liefert die X-Koordinate des aktuellen Punkts zurück.
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<h4>Syntax</h4>
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<pre>$x</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$x &rarr; 42</pre>
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‎resources/function_help/$x-en_US

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<h3>$x function</h3>
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Returns the x coordinate of the current feature.
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<h4>Syntax</h4>
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<pre>$x</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$x &rarr; 42</pre>
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‎resources/function_help/$y-de_DE

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<h3>Funktion $y</h3>
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Liefert die Y-Koordinate des aktuellen Objekts zurück.
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<h4>Syntax</h4>
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<pre>$y</pre>
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<h4>Argumente</h4>
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Keine
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<h4>Beispiel</h4>
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<pre>$y &rarr; 42</pre>
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‎resources/function_help/$y-en_US

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<h3>$y function</h3>
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Returns the y coordinate of the current feature.
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<h4>Syntax</h4>
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<pre>$y</pre>
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<h4>Arguments</h4>
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None
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<h4>Example</h4>
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<pre>$y &rarr; 42</pre>
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‎resources/function_help/Bedingungen-de_DE

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<h3>Gruppe Bedingungen</h3>
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Dies Gruppe enthält Funktionen die mit Bedingungen umgehen.

‎resources/function_help/Conditions-en_US

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<h3>Conditions Group</h3>
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This group contains functions that operate on condition.

‎resources/function_help/Date and Time-de_DE

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‎resources/function_help/Datensatz-de_DE

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<h3>Gruppe Datensatz</h3>

‎resources/function_help/Datum und Zeit-de_DE

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<h3>Datum- und Zeitgruppe</h3>
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Diese Gruppe enthält Funktionen zur Verarbeitung von Daten und Zeiten.

‎resources/function_help/Fields and Values-de_DE renamed to ‎resources/function_help/Felder und Werte-de_DE

File renamed without changes.

‎resources/function_help/Geometry-de_DE renamed to ‎resources/function_help/Geometrie-de_DE

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<h3>Geometrie-Gruppe</h3>
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<h3>Gruppe Geometrie</h3>
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Dies Gruppe enthält Funktionen für Geometrieobjekten (z.B. Länge und Flächeninhalt).

‎resources/function_help/Math-de_DE renamed to ‎resources/function_help/Mathematik-de_DE

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<h3>Mathematik-Gruppe</h3>
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<h3>Gruppe Mathematik</h3>
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Die Gruppe enthält mathematische Funktionen (z.B. Quadratwurzel, Sinus und Cosinus)

‎resources/function_help/Operators-de_DE renamed to ‎resources/function_help/Operatoren-de_DE

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<h3>Operatoren-Gruppe</h3>
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<h3>Gruppe Operatoren</h3>
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Die Gruppe enthält Operatoren (z.B. +, - und *)

‎resources/function_help/Record-de_DE

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‎resources/function_help/Conversions-de_DE renamed to ‎resources/function_help/Umwandlungen-de_DE

File renamed without changes.

‎resources/function_help/String-de_DE renamed to ‎resources/function_help/Zeichenketten-de_DE

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<h3>Zeichenketten-Gruppe</h3>
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<h3>Gruppe Zeichenketten</h3>
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Dies Gruppen enthält Funktionen für Zeichenketten (z.B. Ersetzen und in Großbuchstaben umwandeln).

‎resources/function_help/concat-de_DE

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<h3>Funktion concat()</h3>
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Fügt Zeichenketten zu einer zusammen.
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<p><h4>Syntax</h4>
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substr(<i>zeichenkette<i>[, <i>zeichenkette</i>...])</p>
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<p><h4>Argumente</h4>
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<!-- List args for functions here-->
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<i> zeichenkette</i> &rarr; ist string. Ein Zeichenkette.<br>
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<p><h4>Beispiel</h4>
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<!-- Show example of function.-->
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concat('a','b','c','d','e') &rarr; 'abcde'</p>

‎resources/function_help/concat-en_US

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<h3>concat() function</h3>
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Concatenates several strings to one.
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<h4>Syntax</h4>
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concat(<i>string<i>[,<i>string</i>...])
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<h4>Arguments</h4>
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<!-- List args for functions here-->
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<i> string</i> &rarr; is string. a string.<br>
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<h4>Example</h4>
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<!-- Show example of function.-->
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concat('a','b','c','d','e') &rarr; 'abcde'

‎resources/function_help/regexp_replace-de_DE

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<h3>Funktion regexp_replace()</h3>
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Liefert eine Zeichenkette in der der angegebene reguläre Ausdruck ersetzt wurde.
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<p><h4>Syntax</h4>
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regexp_replace(<i>a</i>, <i>streiche</i>, <i>setze</i>)
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<p><h4>Argumente</h4>
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<!-- List args for functions here-->
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<i>a</i> &rarr; ist string. Die ursprüngliche Zeichenkette.<br>
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<i>streiche</i> &rarr; ist string. Die zu ersetzende reguläre Ausdruck.<br>
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<i>setze</i> &rarr; ist string. Die Zeichenkette durch die <i>streiche</i> ersetzt werden soll<br></p>
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<p><h4>Beispiel</h4>
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<!-- Show example of function.-->
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<pre>regexp_replace('QGIS SHOULD ROCK','(SHOULD)','DOES (was:\1)')</pre> &rarr; 'QGIS DOES (was: SHOULD) ROCK'

‎resources/function_help/regexp_replace-en_US

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<h3>regexp_replace() function</h3>
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Returns a string with the supplied regular expression replaced.
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<p><h4>Syntax</h4>
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replace(<i>string,before,after</i>)</p>
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<p><h4>Arguments</h4>
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<!-- List args for functions here-->
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<i> string</i> &rarr; is string. The start string.<br>
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<i> before</i> &rarr; is string. The string to replace.<br>
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<i> after</i> &rarr; is string. The string that will replace <i>before</i><br></p>
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<p><h4>Example</h4>
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<!-- Show example of function.-->
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replace('QGIS SHOULD ROCK','SHOULD','DOES') &rarr; 'QGIS DOES ROCK'</p>

‎resources/function_help/strpos-de_DE

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<h3>Funktion strpos()</h3>
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Bestimmt die Position eines regulären Ausdrucks in einer Zeichenkette.
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<h4>Syntax</h4>
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strpos(<i>heuhaufen<i>,<i>nadel</i>)
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<br><br>
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Gibt -1 zurück, wenn der Ausdruck nicht gefunden wurde.
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<h4>Argumente</h4>
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<!-- List args for functions here-->
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<i> heuhaufen</i> &rarr; ist string. Zeichenkette in der gesucht werden soll.<br>
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<i> nadel</i> &rarr; ist string. Der gesuchte reguläre Ausdruck.<br>
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<h4>Beispiel</h4>
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<!-- Show example of function.-->
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strpos('HELLO WORLD','WORLD') &rarr; 6<br>
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strpos('HELLO WORLD','GOOD BYE') &rarr; -1<br>

‎resources/function_help/strpos-en_US

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<h3>strpos() function</h3>
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Return the index of a regular expression in a string.
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<h4>Syntax</h4>
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strpos(<i>haystack</i>, <i>needle</i>)
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<br><br>
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Returns -1 if the expression isn't found.
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<p><h4>Arguments</h4>
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<!-- List args for functions here-->
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<i> haystack</i> &rarr; is string. The string that is to be searched.<br>
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<i> needle</i> &rarr; is number. The regular expression to look for.<br>
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<h4>Example</h4>
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<!-- Show example of function.-->
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strpos('HELLO WORLD','WORLD') &rarr; 6<br>
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strpos('HELLO WORLD','GOODBYE') &rarr; -1<br>

‎resources/function_help/xat-de_DE

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<h3>Funktion xat</h3>
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Liefert eine X-Koordinate der Geometrie der aktuellen Geometrie.
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<h4>Syntax</h4>
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<code>xat(i)</code>
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<h4>Argumente</h4>
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<code>i</code> - ist int. X-Koordinate des n-ten Punkts einer Linie (Indizes beginnen bei 0; Negative Werte beziehen sich auf das Linienende)
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<h4>Beispiel</h4>
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<pre>xat(1) &rarr; 5</pre>

‎resources/function_help/xat-en_US

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<h3>xat function</h3>
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Retrieves a x coordinate of the current feature
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<h4>Syntax</h4>
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<code>xat(i)</code>
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<h4>Arguments</h4>
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<code>i<code> - is int. index of point of a line (indices start at 0; negative values apply to the last index).
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<h4>Example</h4>
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<pre>xat(1) &rarr; 5</pre>

‎resources/function_help/yat-de_DE

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<h3>Funktion yat</h3>
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Liefert eine Y-Koordinate der Geometrie der aktuellen Geometrie.
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<h4>Syntax</h4>
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<code>xat(i)</code>
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<h4>Argumente</h4>
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<code>i</code> - ist int. Y-Koordinate des n-ten Punkts einer Linie (Indizes beginnen bei 0; Negative Werte beziehen sich auf das Linienende)
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<h4>Beispiel</h4>
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<pre>yat(1) &rarr; 5</pre>

‎resources/function_help/yat-en_US

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<h3>yat function</h3>
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Retrieves a y coordinate of the current feature
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<h4>Syntax</h4>
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<code>yat(i)</code>
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<h4>Arguments</h4>
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<code>i<code> - is int. index of point of a line (indices start at 0; negative values apply to the last index).
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<h4>Example</h4>
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<pre>yat(1) &rarr; 5</pre>

‎src/core/qgsexpression.cpp

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<< FunctionDef( "todate", 1, fcnToDate, QObject::tr( "Conversions" ) )
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<< FunctionDef( "totime", 1, fcnToTime, QObject::tr( "Conversions" ) )
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<< FunctionDef( "tointerval", 1, fcnToInterval, QObject::tr( "Conversions" ) )
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<< FunctionDef( "coalesce", -1, fcnCoalesce, QObject::tr( "Conversions" ) )
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// conditionals
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<< FunctionDef( "coalesce", -1, fcnCoalesce, QObject::tr( "Conditionals" ) )
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// Date and Time
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<< FunctionDef( "$now", 0, fcnNow, QObject::tr( "Date and Time" ) )
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<< FunctionDef( "age", 2, fcnAge, QObject::tr( "Date and Time" ) )

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