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On 8/31/2017 2:00 AM, Peter Melnichenko wrote:
On Wed, Aug 30, 2017 at 6:07 PM, Benas Vaitkevičius wrote:
Dear Lua community,

I am glad to announce parser-gen, a parser generator that I created together
with LabLua this summer. The code can be found on GitHub:
[snip snip snip]

This is a beta release, please report any bugs when found.

[snip snip snip]
Additionally, the memory consumption of the parser seemed very high on
these larger files

Last time I looked a few years ago, often academic papers on PEG mentions memory consumption as an issue. PEG on Wikipedia [1] puts memory usage as the first item on Disadvantages. So I guess nothing much has changed.

Any PEG being used for heavy-duty complex processing these days? Without searching for it, I have not come across any. High memory consumption would hit the CPU caches and negatively impact performance. Folks are not moving to PEG in droves.


(hint: turn off swap before testing this if you have it enabled normally).
Not sure if this is due to limitations of parser-gen or lpeglabel or
perhaps some bad case in grammar.

Kein-Hong Man (esq.)
Selangor, Malaysia