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Re: coupling LALR with a scanner?

From "Armel" <armelasselin@hotmail.com>
Newsgroups comp.compilers
Subject Re: coupling LALR with a scanner?
Date 2011-10-02 16:41 +0200
Organization les newsgroups par Orange
Message-ID <11-10-005@comp.compilers> (permalink)
References (4 earlier) <11-09-016@comp.compilers> <11-09-017@comp.compilers> <11-09-022@comp.compilers> <11-09-023@comp.compilers> <11-10-003@comp.compilers>

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> there is an argument for introducing such a gap to "segment"
> tokens into smaller chunks for both performance and expressibility
> reasons.

could you elaborate on this segmentation mechanism?

In my lexer generator, the developer can introduce start states by himself
and 'cut' complex expressions into smaller expressions which still respect
AFD capabilities and introduce dynamic regular expressions where absolutely
necessary, for languages allowing dynamic string delimiters for example
(e.g. doc-strings like << END_OF_STR_MARKER, some lines then a line with
END_OF_STR_MARKER only on the line), languages such as ruby are very funny
from that point of view if I remember well.

Regards
Armel

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coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-07-05 01:02 +0200
  Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-07-07 10:28 +0200
    coupling LALR with a scanner? "Karsten Nyblad" <uu3kw29sb7@snkmail.com> - 2011-07-07 10:46 +0200
    Re: coupling LALR with a scanner? "Karsten Nyblad" <uu3kw29sb7@snkmail.com> - 2011-07-08 14:39 +0200
      Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-08-04 11:17 +0200
        Re: coupling LALR with a scanner? Paul B Mann <paul@paulbmann.com> - 2011-09-13 13:38 -0700
          Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-09-16 10:47 +0200
            Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-09-19 13:52 +0200
            Re: coupling LALR with a scanner? Paul B Mann <paul@paulbmann.com> - 2011-09-19 12:12 -0700
              Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-09-20 09:40 +0200
                Re: coupling LALR with a scanner? Chris Dodd <cdodd@acm.org> - 2011-09-23 23:59 +0100
                Re: coupling LALR with a scanner? Chris F Clark <cfc@shell01.TheWorld.com> - 2011-09-29 00:00 -0400
                Re: coupling LALR with a scanner? "Armel" <armelasselin@hotmail.com> - 2011-10-02 16:41 +0200
                Re: coupling LALR with a scanner? Chris F Clark <cfc@shell01.TheWorld.com> - 2011-10-03 11:59 -0400
                Re: coupling LALR with a scanner? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2011-10-03 21:08 +0000
          Re: coupling LALR with a scanner? Paul B Mann <paul@paulbmann.com> - 2011-09-17 10:38 -0700

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