[x3d-public] Unexpected behaviour of X3D Validator; X3D regular expressions (regexes)

[Don Brutzman]

Found and fixed some regex problems in X3D XML Schema.  Now deployed.

http://www.web3d.org/specifications
http://www.web3d.org/specifications/x3d-schema-changelog.txt

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X3D Schema update activity:

3 JUN 2018, brutzman
- regex: use MFDouble pattern for MFTime (rather than double list) in order to handle commas
- regex: use SFVec2f pattern for SFVec2d, fixing mistake
- Updated X3D Regular Expressions (regexes) documentation
   http://www.web3d.org/specifications/X3dRegularExpressions.html
- regex: TODO need to handle intermediate whitespace greater than a single character
- regex: TODO need regexes for MFString, SFImage and MFImage
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Also made lots of improvements to the X3D regex page.  Review and feedback welcome.

	X3D Regular Expressions (regexes)
	http://www.web3d.org/specifications/X3dRegularExpressions.html

	X3D Regular Expressions (regexes) are used to validate the correctness of string and numeric array values in an X3D scene.

all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman