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Chris
#1 / 8
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 How to use Regex to breakdown a pattern and use the pattern to break down a string I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##",
"XXX" etc. How to break down this string pattern using Regex and
apply it to data;
Pattern "XXXXXXXX##" to break out string "00000078.7\r\n" to get
"00000078.7";
Pattern ""##XX##XX##" to break out string "LB78KL.7l\n" to get "78.7";
etc......
Or what is the best way to do this?
Thanks,
Jerry
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| Sat, 08 Dec 2012 23:14:45 GMT |
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s..
#2 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string Quote:
>I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##", >"XXX" etc. How to break down this string pattern using Regex and >apply it to data; >Pattern "XXXXXXXX##" to break out string "00000078.7\r\n" to get
>"00000078.7";
>Pattern ""##XX##XX##" to break out string "LB78KL.7l\n" to get "78.7";
>etc......
>Or what is the best way to do this?
>Thanks,
>Jerry
I would think long and hard before doing this.
use strict;
use warnings;
my $data = "LB78KL.7l\n";
my $pat = "##XX##XX##";
$pat =~ s/(X+)/'(' . '.'x length($1) . ')'/eg;
$pat =~ tr/#/./;
print join '', $data =~ /$pat/s;
-sln
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| Sun, 09 Dec 2012 01:58:51 GMT |
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Tad McClella
#3 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string Quote:
> I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##",
> "XXX" etc. How to break down this string pattern using Regex and
> apply it to data;
That depends entirely on what meaning you assign to
the "X" and "#" characters in your pattern language.
What meaning do you assign to the "X" and "#" characters in your
pattern language?
--
Tad McClellan
email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/"
The above message is a Usenet post.
I don't recall having given anyone permission to use it on a Web site.
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| Sun, 09 Dec 2012 04:36:44 GMT |
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Chris
#4 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string
Quote:
> > I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##", > > "XXX" etc. ?How to break down this string pattern using Regex and > > apply it to data; > That depends entirely on what meaning you assign to
> the "X" and "#" characters in your pattern language.
> What meaning do you assign to the "X" and "#" characters in your
> pattern language?
> --
> Tad McClellan
> email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/"
> The above message is a Usenet post.
> I don't recall having given anyone permission to use it on a Web site.
Tad,
I want to keep # data and disregard X data/position in a string that
is being read from a serial port.
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| Sun, 09 Dec 2012 21:53:37 GMT |
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Tad McClella
#5 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string Quote:
>> > I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##", >> > "XXX" etc. ?How to break down this string pattern using Regex and >> > apply it to data; >> That depends entirely on what meaning you assign to
>> the "X" and "#" characters in your pattern language.
>> What meaning do you assign to the "X" and "#" characters in your
>> pattern language?
>> --
>> Tad McClellan
>> email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/"
>> The above message is a Usenet post.
>> I don't recall having given anyone permission to use it on a Web site.
You are not supposed to quote .sigs.
Please don't do that.
Have you seen the posting guidelines that are posted here frequently?
Quote: > Tad, > I want to keep # data and disregard X data/position in a string that
> is being read from a serial port.
Pattern "XXXXXXXX##" to break out string "00000078.7\r\n" to get
"00000078.7";
that does not match up with your new rules, as you should get ".7" by
these new rules...
--
Tad McClellan
email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/"
The above message is a Usenet post.
I don't recall having given anyone permission to use it on a Web site.
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| Sun, 09 Dec 2012 22:37:16 GMT |
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Ben Morro
#6 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string [please don't quote .sigs]
Quote:
> > > I will get a user defined patten "XXXXX##', "##XXXXX##", "##XX##XX##", > > > "XXX" etc. ?How to break down this string pattern using Regex and > > > apply it to data; > > That depends entirely on what meaning you assign to
> > the "X" and "#" characters in your pattern language.
> > What meaning do you assign to the "X" and "#" characters in your
> > pattern language?
> I want to keep # data and disregard X data/position in a string that
> is being read from a serial port.
my $pat = "XXXXX##";
my $data = "1234567";
$pat =~ tr/X#/xa/;
my $input = join "", unpack $pat, $data;
Ben
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| Sun, 09 Dec 2012 22:41:22 GMT |
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s..
#7 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string Quote:
>I want to keep # data and disregard X data/position in a string that
>is being read from a serial port.
As someone said tr/X#/xa/ and unpack would be the way to go.
However, without an anchor or other frame reference, this will
do you absolutely no good whatsoever.
-sln
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| Mon, 10 Dec 2012 01:10:04 GMT |
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Chris
#8 / 8
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How to use Regex to breakdown a pattern and use the pattern to break down a string Tad,
I inverted the pattern, SORRY! It should be "#######XX"
Regards
Jerry
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| Tue, 11 Dec 2012 18:46:10 GMT |
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