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| From | Robert A Duff <bobduff@shell01.TheWorld.com> |
| Newsgroups | comp.compilers |
| Subject | Re: Should data filtering be done while building the parse tree or after the parse tree is built? |
| Date | Thu, 06 Jun 2013 12:10:05 -0400 |
| Organization | The World Public Access UNIX, Brookline, MA |
| Lines | 13 |
| Sender | johnl@iecc.com |
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| Message-ID | <13-06-009@comp.compilers> (permalink) |
| References | <13-06-005@comp.compilers> |
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| Keywords | parse |
| Posted-Date | 06 Jun 2013 12:33:55 EDT |
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| Xref | csiph.com comp.compilers:919 |
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> Should I embed filtering rules into the grammar -- perform filtering as I > build the parse tree? > > Or, should I build the parse tree and then have an application perform > filtering on the parse tree? I think the second approach is usually simpler. Separation of concerns. A parser is working with text (or a sequence of tokens, or whatever). A syntax tree is an easier data structure to work with for doing various transformations. - Bob
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Should data filtering be done while building the parse tree or after the parse tree is built? "Costello, Roger L." <costello@mitre.org> - 2013-06-03 19:47 +0000 Re: Should data filtering be done while building the parse tree or after the parse tree is built? Robert A Duff <bobduff@shell01.TheWorld.com> - 2013-06-06 12:10 -0400
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