The function returns a subtext from the string given by the index of the first character and the number of characters.
Declaration
TEXT %SubStr(
TEXT in Text,
INT in idxFrom,
INT in numChars
)
Parameters
text
Text string.
idxFrom
Index of the first character in text string (from 1...).
numChars
The number of characters in the result string.
Example
%SubStr("some text", 2, 3) ; returns the following text : "ome"
If the value of the parameter idxFrom overruns the string length, the function returns an invalid value. If numChars is greater than admissible number of characters, the text will be truncated:
%SubStr("some text", 2, 100) ; returns the following text : "ome text"
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