Re: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent

Thanks very much, a very very useful tutorial! I especially like the methodical and analytical approach very much.

Some small things I found in the text:

The document provides two implementation
=>
The document provides two implementations

have the same preceedence
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have the same precedence

The following subsections show how to evaluate the list how to treeify it.
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The following subsections show how to evaluate the list and how to treeify it.

In a list, that means the means the last (right-most) element encountered will be executed first.
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In a list, that means the last (right-most) element encountered will be executed first.

Fortuantely, Parse::RecDescent provides a means
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Fortunately, Parse::RecDescent provides a means

and each reference to that rule
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and of each reference to that rule

Just like function can have arguments, so can subrules.
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Just like functions can have arguments, so can subrules.

However, Parse::RecDescent handles rule with productions
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However, Parse::RecDescent handles rules with productions

Just like Parse::RecDescent has an directive for creating a flat list for a left-associative operator (<lefttop>),
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Just like Parse::RecDescent has a directive for creating a flat list for a left-associative operator (<leftop>),

The problem we have to pass $item[1] from pow to pow_.
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The problem is we have to pass $item[1] from pow to pow_.

The following subsections contains complete, working code
=>
The following subsections contain complete, working code

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Re^2: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent by ikegami (Patriarch) on Jun 14, 2014 at 02:49 UTC
If you had posted that a week earlier, it would have been posted on the 8th anniversary of the OP! Thanks, fixes applied.	[reply]
Re^3: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent by hexcoder (Curate) on Jun 14, 2014 at 14:55 UTC
Well, I just discovered the OP. Originally I wanted to email this to you, but I could not find a way in Perlmonks to do that. The private msg function only offers a tiny line, which did not seem to fit. So I posted it (which lowered my reputation a tiny bit). What would you suggest in this case? Thanks hexcoder	[reply]
Re^4: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent by ikegami (Patriarch) on Jun 15, 2014 at 23:50 UTC
It wasn't a complaint. I wasn't pointing out the date of your post because I found it annoying; I pointed it out because I thought it was cool!	[reply]
Re^4: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent by LanX (Saint) on Jun 14, 2014 at 15:40 UTC
> What would you suggest in this case? You could have put it into hexcoder's scratchpad, and messaged the link. (Correcting orthography is indeed often regarded as a waste of bandwidth. ;) Cheers Rolf (addicted to the Perl Programming Language)	[reply]
Re^5: Operator Associativity and Eliminating Left-Recursion in Parse::RecDescent by hexcoder (Curate) on Jun 15, 2014 at 06:53 UTC


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