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Showing content from https://mail.python.org/pipermail/python-dev/2002-August/028222.html below:

[Python-Dev] Parsing vs. lexing.

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tim wrote:

> Parser generators are great for little languages!  They're painful for =
real
> languages, though, because syntax warts accumulate and then tool =
rigidity
> gets harder to live with.  Hand-crafted R-D parsers are wonderfully
> tweakable in intuitive ways (staring at a mountain of parse-table =
conflicts
> and divining how to warp the grammar to shut the tool up is a black =
art
> nobody should regret not learning ...).

cf. http://compilers.iecc.com/comparch/article/00-12-106

"For me and C++, [using a parser generator] was a bad mistake."

</F>

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