[m2t-dev] [MTL] Standard library issues

[Laurent Goubet <laurent.goubet@xxxxxxx>]

Hi Arjan,

I was looking at the specifications as to how the OCL standard library 
has been extended for the needs of MTL and stumbled upon a set of issues 
on which I would need your input. As I only began the implementation, 
I'll only list the issues I have with the "String" operations :

1) substitute( String r, String t ) : String
Substitutes substring r in self by substring t and returns the resulting 
string. If there is no occurrence of the substring, it returns the 
original string.

I think it would be nice to tweak the specification so that the first 
parameter would be a regular expresion instead of a plain String. I'd 
love to be able to use an equivalent of the Java's "replaceAll" method 
for MTL Strings.

2) toUpper() : String
Creates a copy of self with all characters converted to uppercase and 
returns it.

This has been listed as a method that should be added to "extend the OCL 
standard library", but this method is *already* specified in the OCL 
specifications for the aforementioned library and should be removed from 
the MTL specification.

3)toLower() : String
Creates a copy of self with all characters converted to lowercase and 
returns it.

As above, this is already present in the OCL standard library and should 
probably be removed from the MTL specification.

I will list more of these issues here as I encounter them while 
implementing the specification.

Regards

Laurent Goubet
Obeo

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