<div dir="ltr"><div dir="ltr"><div dir="ltr"><p class="MsoNormal">tangentially related, may relate to importer for x3d.py:</p><p class="MsoNormal">vrml input<span></span></p>

<p class="MsoNormal"><a href="https://sourceforge.net/projects/pyvrml97/">https://sourceforge.net/projects/pyvrml97/</a>
<span></span></p>

<p class="MsoNormal">which uses:<br></p><p class="MsoNormal"><span></span></p>

<p class="MsoNormal">from simpleparse.parser import Parser <span></span></p>

<p class="MsoNormal"><a href="https://pypi.org/project/SimpleParse/">https://pypi.org/project/SimpleParse/</a>
<span></span></p>

<p class="MsoNormal">- EBNF single pass for largely deterministic grammars<span></span></p><p class="MsoNormal">parser.py snippet:</p><p class="MsoNormal">grammar = r'''</p><p class="MsoNormal">header         := headerStatement,profileStatement,componentStatement*,metaStatement*</p><p class="MsoNormal">headerStatement  := ('#X3D',ts,SFNumber,ts,'utf8',ts,headerComment?,newLine)/('#',headerComment?,newLine)</p><p class="MsoNormal">headerComment  := -newLine+</p><p class="MsoNormal">profileStatement := 'PROFILE', ts, profileName,newLine</p><p class="MsoNormal">profileName    := name</p><p class="MsoNormal"><newLine>      := ('\r\n'/'\r'/'\n')</p><div>...</div><div><br></div><p class="MsoNormal"><br></p></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Oct 23, 2023 at 7:47 AM John Carlson <<a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hmm.<div><br></div><div>I'm thinking about generating a Classic VRML grammar from X3DUOM using Python, and then using ANTLR4 to generate Java code for inclusion in various experiments with GraalVM's Polyglot, Truffle, etc.</div><div><br></div><div>Hmm.</div><div><br></div><div>Hmm.</div><div><br></div><div>Hmm.</div><div><br>Maybe in another life.</div><div><br></div><div>John</div></div>
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