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Is it expected, that e.g. '(' and ')' are incorrect symbols in diagram name, but the following four: '[ ] { }' are correct? It seems that they should also be processed during diagram renaming or in 'Save As' action. see also issue 99076
I see no reason why those bracket characters should not be allowed in diagram name as they cause no troubles. Made further changes to validate name with the rule that the trimmed diagram name constains char that is Character.isLetterOrDigit(c)) or (c == '_' || c == '(' || c == ')' || c == '{' || c == '}' || c == '[' || c == ']' || c == ' ')
verified in netbeans-6.0-nightly-200705250000-full