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Re: Stream-based Scanning of File-Buffers
From: |
Juanma Barranquero |
Subject: |
Re: Stream-based Scanning of File-Buffers |
Date: |
Fri, 25 Sep 2009 14:55:34 +0200 |
On Fri, Sep 25, 2009 at 14:12, Nordlöw <per.nordlow@gmail.com> wrote:
> Is there a way to perform string/regexp scanning (using search-forward
> or re-search-forward) in a file-buffer whose contents is loaded only
> when it's needed, kind of like file streams in C, so that I only do a
> physical read on the blocks that I actually scan and then skip the
> rest of the file as soon as I get a hit.
You can use `insert-file-contents' to implement something like that;
presumably, the only tricky part is taking care of matches across
block boundaries.
Juanma