Issue with repeating substrings in "Strip" Node

[HebHeb]

hey there,

 

can someone explain how I could use the Strip Node whilst using repeating "sub-parts" of the"substring

example:
string Input is:

TestStringStripFriend-From Test ("From" should stay)

 

Strip Operator is:

TestStringStripFriend-

result is:

om Test ("From" should stay)

 

 

result should be:
From Test ("From" should stay)

 

Anyone? Cheers!

[Marissa Farrell]

@HebHeb

It appears this is happening because it's counting the "Fr" in From and not just Friend, if you change the capitalization to lowercase for "from" then it works.

I'm looking into this, the strip function is built-in for Python, so we don't do the handling for it within this node, but maybe there's something we can do to add our own handling.

 

Edit:

Here's a post about how the Python "strip" function works:
https://stackoverflow.com/questions/1687171/why-does-str-lstrip-strip-an-extra-character
I'll think about how we can get around this limitation.

In the meantime, I would suggest using the Replace String node with an empty string as the input for sNew.

[Letti R]

Hello,

 

you may want to use.

string.removeprefix("")
string.removesuffix("")

These functions seem to do what you are searching for.

 

A Marionette node with the functions above could look like this:

@Marionette.NodeDefinition
class Params(metaclass = Marionette.OrderedClass):
#APPEARANCE
	#Name
	this = Marionette.Node( "remove suffix prefix" )
	this.SetDescription('Removes the suffix or the prefix from the full string.')
	
	#Input Ports
	s = Marionette.PortIn( '', 's' )
	s.SetDescription('The full string.')
	
	s2 = Marionette.PortIn( '', 'sSub')
	s2.SetDescription('The substring.')
	
	#OIP Controls
	pos = ['left', 'right', 'both']
	position = Marionette.OIPControl( 'Position', Marionette.WidgetType.RadioButton, 0, pos)
	position.SetDescription('an OIP control representing the position options for where the string gets stripped.')
	
	#Output Ports
	outList = Marionette.PortOut('sNew')
	outList.SetDescription('The stripped string.')
	
#BEHAVIOR
	
def RunNode(self):
	#inputs
	s = self.Params.s.value
	s2 = self.Params.s2.value
	pos = self.Params.pos
	position = self.Params.position.value
	
	#script
	if pos[position] == 'left':
		sNew = s.removeprefix(s2)
		
	elif pos[position] == 'right':
		sNew = s.removesuffix(s2)
		
	elif pos[position] == 'both':
		sNew = s.removeprefix(s2).removesuffix(s2)
	
	#outputs
	self.Params.outList.value = sNew

You can create the node by replacing the code of any Marionette node with the code above.

 

 

Regards,

Letti

[Antonio Landsberger]

@Marissa Farrell

Perhaps this node could be improved by introducing an OIP option that can be toggled (preferably two radio buttons) that lets the user choose which behaviour they wish for.

[HebHeb]

Thank u!

The solution suggested by @Letti R works!