So, I'm back asking your help. I hope I don't make too many mistakes posting this.
My problem is this: I have a .txt file, which is like this:
L'/lo/RDNS  harmonium/harmonium/S  Ë/essere/V-S3IP  uno/uno/RIMS  stru
+mento/strumento/S-MS  musicale/musicale/A-NS  azionato/azionare/V-MSP
+R  con/con/E  una/una/RIFS  tastiera/tastiera/S-FS

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which is the result of a POS tagging.
I also have a list of couple of word, that I made, which looks like this one:
[Nn]ucle[oi]/nucleo/S-MS:[Pp]roton[oi]/protone/S-MP
[Aa]tom[oi]/atomo/S-MS:[Nn]ucle[oi]/nucleo/S-MS

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I need to do something that takes both file as input and print me everything that's between the first "word" which is really a string and the second one.
I tried this code:
#!/usr/bin/perl
use strict;
use warnings;
open my $listaParole,"<File_with_the_words" or die;
 
my %hash;
while (my $line=<$listaParole>) {
chomp $line;
my ($word1, $word2) = split /:/, $line;

$hash{$word1} = $word2;
}
while ( my ($k,$v) = each %hash ) {
    print "Key $k => $v\n";
}

open my $testo, "<File_with_the_text";  
open my $lista_relazioni, ">Output";
my @arrayris =() ;
my $indice=0;

    while (my $text=<$testo>){
     for my $key (keys %hash){
       my $value = $hash{$key};
    while ($text =~ / $key (.*)? $value /g)  {
      
    $arrayris[$indice]=$1;
    $indice++;
      
    
    } 
      
    }  
}
my $indice_controllo=1;
foreach (@arrayris) {
  print $lista_relazioni "($indice_controllo) $_\n";
  $indice_controllo++;
}




close $testo;
close $lista_relazioni;

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but obviously the regex ($text =~ / $key (.*)? $value /g) isn't too accurate. I would like for it to match just string that have the first "word" than 3 or 4 other "words" and than the second one. Is it possible? How should I do it? Is the rest of the code any good? Thanks for your help.

In reply to Regex matching by b_vulnerability

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