On Thu, 25 Oct 2012, Joseph J Alotta wrote:

> Greetings.  I found a useful method.  Only thing is
> I don't know how to write the character code for no character.
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> '12%31%%1232' replaceAll: $% with: $.   '12.31..1232'
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> '12%31%%1232' replaceAll: $% with: $* '12*31**1232'
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> '12%31%%1232' replaceAll: $% with: ''  ==> error
> '12%31%%1232' replaceAll: $% with: Nil  ==> error
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> I looked for a deleteAll: method but there is none for Strings.

Since the size of Strings (and Objects in general) can't be changed in 
Squeak, and removing characters would change the size, therefore you have 
to use a method which creates a new object instead of just modifying the 
receiver. Here are a few possibilities:

'12%31%%1232' copyWithout: $%.
'12%31%%1232' copyReplaceAll: '%' with: ''.
'12%31%%1232' reject: [ :each | each = $% ].
'12%31%%1232' select: [ :each | each ~= $% ].


Levente

P.S.: While #replaceAll:with: looks useful, it's a bit dangerous, because 
it changes the receiver. So you'll have to be more careful when you use 
it.

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> Thank you for your help.
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> Joe.
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