note
lancer
<p>
I rewrote the code to make it work as described in your post.
</p>
<p>
<br/>
<b>replace_with_matches.pl</b>
</p>
<code>
#!/usr/bin/perl
use warnings;
use strict;
my $source = shift @ARGV;
my $destination = shift @ARGV;
my $matchfile = shift @ARGV;
my @matches = ();
open (MF, '<', $matchfile) or die $!;
while (<MF>)
{
push @matches, $_;
}
close MF;
# have a list of all matches
my @input = ();
open (IN, '<', $source) or die $!;
while (<IN>)
{
push @input, $_;
}
close (IN);
# have all input lines in an array
my @output = ();
NEXT_INPUT_LINE:
for my $input_line (@input)
{
# check every input line 1 time
NEXT_MATCH_PAIR:
for my $match_pair (@matches)
{
my @DATA = split (/\s/, $match_pair);
my $matcher = $DATA[0];
my $replacer = $DATA[1];
# check all match pairs against 1 input line
if ($input_line =~ /^$matcher/)
{
# make replacement
$input_line =~ s/legend/$replacer/;
push @output, $input_line;
# jump to next input line
next NEXT_INPUT_LINE;
}
}
# if it gets here, there was no replacement
# copy input line to output
push @output, $input_line;
}
# have all replaced output in @output
# write @output to $destination
open (OUT, '>', $destination) or die $!;
for my $output_line (@output)
{
print OUT $output_line;
}
close OUT;
</code>
<p>
<br/>
<br/>
Sample input files:
</p>
<p>
<br/>
<b>source.txt</b>
</p>
<code>
lancer is a legend asdf
asdfwerg asdf wergdfv legend
pieces of trash
line 4 is cool and makes no sense
time for legends
time for christmas
jesus is a legend
</code>
<p>
<br/>
<b>matches.txt</b>
</p>
<code>
l jerk
j myth
</code>
<p>
<br/>
<br/>
Sample output:
</p>
<p>
<br/>
<b>result.txt</b>
</p>
<code>
lancer is a jerk asdf
asdfwerg asdf wergdfv legend
pieces of trash
line 4 is cool and makes no sense
time for legends
time for christmas
jesus is a myth
</code>
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