[x3d-public] X3D regexes for colorRGBA, image need work

[Andreas Plesch]

Excellent. My first suspicion would be use of escaping in the regex
pattern, for use with the Pattern.matches et al. methods, which are
the methods which seem to be used in X3DJSAIL according to the API
docs.. The back-slashes need to be escaped so they survive until
delivered to the regex processing.

-Andreas

On Thu, Jul 5, 2018 at 10:39 AM Don Brutzman <brutzman at nps.edu> wrote:
>
> Thanks for the analysis, very helpful.
>
> Not ready yet, but I have made progress integrating the JUnit 5 test framework into X3DJSAIL testing.
>
> Once ready, will apply the various/numerous candidate regex tests into pre-release testing.  This will not only help X3DJSAIL but also X3D XML Schema and anything else using X3D Unified Object Model (X3DUOM).
>
>
>
> On 7/2/2018 11:10 AM, Andreas Plesch wrote:
> > The default value for SFImage is '0 0 0'. It matches the provided
> > regex according to:
> >
> > https://regex101.com/r/TiRNeO/2
> >
> > What regex engine or flavor is used for X3DJSAIL ?
> >
> > Similarly, the default value for SFColorRGBA '0 0 0 0' matches the
> > provided regex according to:
> >
> > https://regex101.com/r/N9ZQcZ/1/tests
> >
> > It appears that there are some limitations to the regex engine used
> > for X3DJSAIL. In order to proceed, it will be probably necessary to
> > figure out exactly how regex are interpreted with X3DJSAIL. There is
> > probably documentation:
> >
> > http://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/fields/SFImageObject.html#pattern
> > points to
> > https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html
> >
> > Looks like it is relevant. It points to:
> >
> > https://www.javatpoint.com/java-regex
> >
> > which could be used for testing.
> >
> > Indeed, replacing the java code in
> > https://compiler.javatpoint.com/opr/test.jsp?filename=RegexExample2
> >
> > with
> >
> > import java.util.regex.*;
> > class RegexExample2{
> > public static void main(String args[]){
> > System.out.println(Pattern.matches(
> > "(\\d|[1-9]\\d+)(\\s+(\\d|[1-9]\\d+)){2}(\\s+((0x([a-f]|[A-F]|\\d]){1,8})|[1-9]\\d+|\\d))*",
> > "0 0 0"));//true
> > }}
> >
> > returns true, indicating that the regex actually works. So the problem
> > may be somewhere else ?
> >
> > -Andreas
> >
> >
> >> Message: 3
> >> Date: Thu, 28 Jun 2018 20:45:02 -0700
> >> From: Don Brutzman <brutzman at nps.edu>
> >> To: X3D Graphics public mailing list <x3d-public at web3d.org>
> >> Subject: [x3d-public] X3D regexes for colorRGBA, image need work
> >> Message-ID: <dd072da5-0761-acd9-5dfb-f772a7ccd37b at nps.edu>
> >> Content-Type: text/plain; charset="utf-8"; format=flowed
> >>
> >> Newly installed X3DJSAIL tests reveal:
> >>
> >> SFColorRGBAObject.initialize() problem: failed to match default value DEFAULT_VALUE [F at 481ba2cf
> >> MFColorRGBAObject.initialize() problem: failed to match default value DEFAULT_VALUE [F at 12d2ce03
> >> SFImageObject.initialize() problem: failed to match default value DEFAULT_VALUE [I at 6239aba6
> >> MFImageObject.initialize() problem: failed to match default value DEFAULT_VALUE [I at 4f3bbf68
> >>
> >> Regexes can be found in schema documentation for each  Simple type at
> >>
> >> http://www.web3d.org/specifications/X3dSchemaDocumentation4.0/x3d-4.0.html
> >>
> >> and further documented at
> >>
> >> http://www.web3d.org/specifications/X3dRegularExpressions.html#SFColorRGBA
> >> http://www.web3d.org/specifications/X3dRegularExpressions.html#SFImage
> >>
> >> Anyone want to tackle these?
> >>
> >> 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
> >>
> >>
> >>
> >>
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> >>
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> >>
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> >>
> >> End of x3d-public Digest, Vol 111, Issue 95
> >> *******************************************
> >
> >
> >
>
>
> 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
>


-- 
Andreas Plesch
Waltham, MA 02453