[Python-ideas] Support parsing stream with `re`
njs at pobox.com
Sun Oct 7 08:15:29 EDT 2018
On Sat, Oct 6, 2018, 18:40 Steven D'Aprano <steve at pearwood.info> wrote:
> The message I take from this is:
> - regex engines certainly can be written to support streaming data;
> - but few of them are;
> - and it is exceedingly unlikely to be able to easily (or at all)
> retro-fit that support to Python's existing re module.
I don't know enough about the re module internals to make an informed guess
about the difficulty.
On a quick glance, it does seem to store most intermediate match state in
explicit structs rather than on the call stack...
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