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buildingSMART / bSDD

The buildingSMART Data Dictionary repository, where we publish the documentation, examples and more. We don't publish here the data, the source code of the bSDD service or the front end of the website.
https://www.buildingsmart.org/users/services/buildingsmart-data-dictionary/
MIT License
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Workaround for special characters #79

Closed atomczak closed 2 months ago

atomczak commented 9 months ago

Markus Järvenpää raised the issue that Finnish classes, properties and property sets often need 'Äą'. In bSDD we allow 'Äą' in names but not in codes.

Problem 1: The property set doesn't have a name in bSDD, only code. A potential workaround could be to define the set as GroupOfProperties and give it a human-friendly name with 'Äą'. But it's not supported by software implementations and also leads to problem 2.

Problem 2: Common BIM software allows users to put property names with 'Äą', and when exporting to IFC, those characters get encoded to hexadecimal code (https://technical.buildingsmart.org/resources/ifcimplementationguidance/string-encoding/). bSDD doesn't allow '\' in codes, so not possible to define even the encoded names.

atomczak commented 2 months ago

We have implemented support for diacritics. From now on, all unicode characters like éÄąД開発 _ ...żź are allowed, including underscores and whitespaces, except for special characters: "#%/\:{}[]|;<>?~.