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Article #103

Re: Pattern

#103
From: Carl J Lydick
Date: Thu, 31 Dec 1992 17:33
29 lines
1837 bytes
In article <1hsqeoINNmqe@usenet.INS.CWRU.Edu>, at913@cleveland.Freenet.Edu (Mirko Vukovic) writes:
>predig:=span('0123456789');			<--- for aaaa
>posdig:=anchor&span('0123456789');		<--- for bbbb
>per:='.';					<--- for .
>exp:=anchor&(notany('dD')|line_end);		<--- for X
>
>find :=((predig&per&exp)|(per&posdig&exp)|(predig&per&posdig&exp));
>
>However the above does detect numbers like 123.12D00, ie if I have more than one
>digit after the period followed by D.

It also does not detect numbers like 123.12.  In particular, it  only picks up
the "123.1" part of i.

>Is that because in posdig anchor forces the span to match only one character?

No, it's because the exp picks up only one character.

>Also, how do I put a cursor on the end of a range?

position(end_of(range));
--------------------------------------------------------------------------------
Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL

Disclaimer:  Hey, I understand VAXen and VMS.  That's what I get paid for.  My
understanding of astronomy is purely at the amateur level (or below).  So
unless what I'm saying is directly related to VAX/VMS, don't hold me or my
organization responsible for it.  If it IS related to VAX/VMS, you can try to
hold me responsible for it, but my organization had nothing to do with it.
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From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
Newsgroups: vmsnet.tpu
Subject: Re: Pattern
Date: 31 Dec 1992 17:33:20 GMT
Organization: HST Wide Field/Planetary Camera
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Distribution: world
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