Regex string trimming help

johnfl68 has asked for the wisdom of the Perl Monks concerning the following question:

Hello

I had this figured out at one time, then changed the way I did things and didn't really need it, but now I need it again for a few instances.

Unfortunately I can not find the final version that I actually used.

I am trying to trim down a string from NWS weather alerts. Here is an example:

...FLASH FREEZE AND AREAS OF BLACK ICE... Temperatures will continue t
+o fall in the wake of a strong cold front as brisk and gusty west to 
+northwest winds usher in much colder air. As temperatures drop into t
+he 20s lingering standing water on roads and other untreated surfaces
+ will freeze up creating hazardous driving and walking conditions. In
+ addition,
[download]

All I need is what is between the first "..." and the second "..." and nothing else.

...FLASH FREEZE AND AREAS OF BLACK ICE...

Sometimes they use the 3 dot pattern in more than one place, I only really want the first set.

What I could find that was the last entry in my notes is this:

$summary =~ s/\Q...\E/.../g;

But that is not working correctly. I have tried a few other ways, but I am not having any luck.

Any help would be greatly appreciated as always. Thank you!

Comment on Regex string trimming help Select or Download Code

Replies are listed 'Best First'.
Re: Regex string trimming help by choroba (Cardinal) on Dec 19, 2016 at 00:21 UTC
You can split the string on three dots and select the second part: `my $result = (split /\Q...\E/, $summary)[1];` [download] ($q=q:Sq=~/;[c](.)(.)/;chr(-\|\|-\|5+lengthSq)`"S\|oS2"`map{chr \|+ord }map{substrSq`S_+\|`\|}3E\|-\|`7**2-3:)=~y+S\|`+$1,++print+eval$q,q,a, [download]	[reply] [d/l] [select]
Re: Regex string trimming help by tybalt89 (Monsignor) on Dec 19, 2016 at 00:25 UTC
#!/usr/bin/perl -l # http://perlmonks.org/?node_id=1178018 use strict; use warnings; while(<DATA>) { print /\.{3}(.*?)\.{3}/; } __DATA__ ...FLASH FREEZE AND AREAS OF BLACK ICE... Temperatures will continue t +o fall in the wake of a strong cold front as brisk and gusty west to +northwest winds usher in much colder air. As temperatures drop into t +he 20s lingering standing water on roads and other untreated surfaces + will freeze up creating hazardous driving and walking conditions. In + addition, [download]	[reply] [d/l]


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