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SUBSTR() - string.substr()
Returns a character string from the given character expression, starting at a specified position
in the character expression and continuing for a specified number of characters.
Watch out! The substring function is zero-based!
VFP code examples
myString = "Servoy World 2011"
myString = SUBSTR(myString,8,5)
&& Index starts at 1
** result:
World
myString = "Hello World"
myString = SUBSTR(myString,1,1)
&& Single character
** result: H
myString = "Hello World"
myString = SUBSTR(myString,7)
** result: World
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NOTE! There is a string.substr(startPos, [length]) and a string.substring(startPos, [endPos]) function in Servoy. The difference is that the substr() function works
like the SUBSTR() function in VFP and that the substring() functions second parameter is the endPosition as opposed to the length. See the examples for clarification.
Servoy code examples
varstyle="color: #660066">var myString =
"Servoy World 2011";
myString = myString.substr(7,5); // Index is zero-based!!
// result: World
var myString =
"Servoy World 2011";
myString = myString.substring(7,12);
// endpos instead of length
// result: World
varstyle="color: #660066">var myString =
"Hello World";
myString = myString.CharAt(0); // This function does not exist in VFP
// result: H
var myString =
"Hello World";
myString = myString.substring(6);
// result: World
NOTE! If you don't like the zero based substring implementation you can als use the following alternative as was pointed out to me by my good friend Alessandro Stefanoni:
// returns 'his'
var retval = utils.stringMiddle('this is a test',2,3);
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External resources:
 vfp plugin
ServoyWorld 2012 pics
Official Servoy website
Ken Levy on Servoy
Servoy info
Servoy Forum
Servoy Documentation
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