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Re^5: Surprised by Perl parse of ternary operator (bison)

by tye (Sage)
on Jan 16, 2012 at 04:32 UTC ( #948060=note: print w/replies, xml ) Need Help??

in reply to Re^4: Surprised by Perl parse of ternary operator (parsing)
in thread Surprised by Perl parse of ternary operator

I quoted the relevant bits of perly.y and that file does indeed get processed by bison (see Makefile.SH and "git grep -i pratt" finds 0 hits. Perhaps a "Pratt-style precedence parser" is used, but, if so, it seems quite weird that bison declarations of precedence are still included in the source code.

So, to me, it looks pretty likely that Perl's parsing of ?: is mostly how bison-style declared precedence works.

- tye        

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[LanX]: quick survey ... Module::Build, ExtUtils:: ModuleMaker or Module::Starter ?
[Your Mother]: Module::Install
[Your Mother]: :P
[LanX]: Moma knows best! ;-)
[Your Mother]: I am quite aware that Module::Build is MUCH more in favor with many monks but I had trouble with it every time I tried to use it and trouble with CPAN stuff that used it too.
[Your Mother]: Take my advice with a grain of salt. I haven't done a new CPAN release in years at this point.
[LanX]: I want to author a new module for CPAN w/o complicated build structure
[LanX]: ther is also Dist::Zilla :-/
[LanX]: How to make a CPAN Module Distribution from 2002

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