Hi Erik,

You need to make sure you are using the right compiler. In a Pharo3 image, you'll find two compilers: Opal and the old one.

In the old one, you need to change:

Scanner>>xColon

In RB/Opal, what you can try with your changes is to inspect:

RBParser parseExpression: 'a :> 5'

And, if you get a RBAssignmentNode, then it is working.

Thierry

2014-12-10 13:32 GMT+01:00 Erik Itter <erik.itter@gmail.com>:

Thanks, tried

scanSpecialCharacter
�� | character |
�� currentCharacter = $:
�� ifTrue: [
�� self step.
�� ^ currentCharacter = $=
�� ifTrue: [
�� self step.
�� RBAssignmentToken start: tokenStart]
�� ifFalse: [ RBSpecialCharacterToken value: $: start: tokenStart ]].
��
�� currentCharacter = $:
�� ifTrue: [
�� self step.
�� ^ currentCharacter = $>
�� ifTrue: [
�� self step.
�� RBAssignmentToken start: tokenStart]
�� ifFalse: [ RBSpecialCharacterToken value: $: start: tokenStart ]].
��
�� currentCharacter = $_ ifTrue: [
�� self step.�
�� ^ RBShortAssignmentToken start: tokenStart ].
��
�� character := currentCharacter.
�� self step.
�� ^ RBSpecialCharacterToken value: character start: tokenStart

but while it does not seem to shred my image to pieces it also seems to have no effect at all. I guess the UI components still check differently and neither workplace nor SystemBrowser allow me to write code using the :> operator

Am 10.12.2014 um 13:11 schrieb Thierry Goubier:

Hi,

If you are using the OpalCompiler (Pharo4, sure, Pharo3, I'm not so sure), have a look at:

RBScanner>>scanSpecialCharacter

Thierry

2014-12-10 12:57 GMT+01:00 Erik Itter <erik.itter@gmail.com>:

Hi,

I need to modify the compiler adding ":>" as an alias for ":=" for assignment. I have been reading all over the Compiler package but do not find where a tokenizer parses for the assignement operator or where it is defined.

Any hint where to start or do it is appreciated.

best regards
Erik