RADWAG WLY, Руководство пользователя, Страница: 286 / 304

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Caution:
A numeric value is comprehended as an optional number or an optional
mathematical operation that returns a numeric value.
There are additional functions that modify the text values, and they can also
operate on numbers that are converted to text:
•
remove (“text value”, initial place (number), quantity of characters to be
removed (number)) – a return is a residue after deleting a part of the text
value, from the initial point to a determined quantity of characters. In
case the third parameter is not specified the text value will be deleted till
its end.
•
substring (“text value”, initial place (number), quantity of characters to be
copied (number)) – a return is copied text value from the initial point to a
quantity of characters to be copied. In case the third parameter is not
specified the text value will be copied till the end.
•
to lower (“text value”) – a return is a complete text value in small letters.
•
to upper (“text value”) – a return is a complete text value in capital letters.
•
replace (“text value”, old text, new text) – a return is a text with replaced
letters of parts of the text, determined in the second and their parameter.
Caution:
The text values are put in quotation marks “ ”.
Examples:
remove (“Text sample”,11) – the operation causes returning a text value:
“Text sample”.
to upper (“Text sample”) – the operation causes returning a text value
“TEXT SAMPLE”.
replace (“Text sample”, “text ”, “text”) - the operation causes returning
a text value “Text sample”.
replace (”2.000”,”0”,”1”) - the operation causes returning a text value
“2.111”. The value can be used for standard mathematical calculations,
where it will be converted “on the fly” in case the operation requires it.