NetNews Usenet Archive 1993 #3/NN_1993_3.iso/spool/comp/lang/prolog/2417

Text File | 1993-01-21 | 1.8 KB | 46 lines

Newsgroups: comp.lang.prolog
Path: sparky!uunet!mcsun!news.funet.fi!funic!nokia.fi!ntc02.tele.nokia.fi!larsson
From: [e-mail]
Subject: Reading text files in Prolog
Message-ID: <[e-mail]>
Lines: 34
Sender: [e-mail] (USENET at noknic)
Nntp-Posting-Host: ntc02.tele.nokia.fi
Organization: Nokia Telecommunications.
Date: Thu, 21 Jan 1993 19:08:35 GMT

Dear colleagues,

Here is a question I mistakenly addressed to Jamie believing
it might be a FAQ:

I'm fairly new to the programming language Prolog. My primary
intention is to use it for natural language processing.

Presently I've been able to run (and even to write) simple parsers,
which will get one sentence at a time from the keyboard and produce
a parse tree. So far so good.

But, trying to use these techniques for text processing purposes
things suddenly get difficult. Texts usually come on files, often
huges ones, which I would like to read for instance sentence by
sentence and parse. The difficulties arise because the system doesn't
use strings internally. Another problem is how to keep track of my
position in the file, when the system backtracks.

And finally, for compatibility and portbility the suggested method
for reading files should preferably also be compliant with the current
ISO Draft Standard for the language.

Thanks in advance for any hints and solutions from more
experienced programmers.

Arne

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Arne Larsson            Nokia Telecommunications
Translator            Transmission Systems, Customer Services
[e-mail]    P.O. Box 12, SF-02611 Espoo, Finland
                Phone [phone], Fax [phone]
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