In the code below, I am replacing the comma with a dash in the quoted string in each input line. The code works, but I'm wondering if there is a way to do this in one statement. I tried a few variations but the stumbling block was always that the "capture" variable $1 is read-only.

BTW, before someone mentions using Text::CSV_XS, I have a version that uses the module but it takes over 4 times longer to process. The real files I will be processing will be huge and I need all the speed I can squeeze out of this.

FYI: The reason I am doing this is because SQL Server BULK INSERT does not respect quoted values. It sees the comma in the quoted string and treats it as a field terminator. :( 

#!/usr/bin/perl
use strict;
use warnings;
while (<DATA>) {
    chomp;
    m/"([^"]+)"/;     # Extract quoted value.
    my $val = $1;     # Save value in variable.
    $val =~ s/,/-/;   # Change comma to dash.
    s/"[^"]+"/$val/;  # Replace quoted value.
    print $_, "\n";
}
__DATA__
65722417,"1193,1",7980,1133566,4169735,035,FEDERAL UNIVERSAL SERVICE F
+UND,0.12998
65722417,"1193,1",1012,1132900,4150053,C2,Carrier Cost Recovery Fee,0.
+0273

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In reply to Modifying CSV File by roho

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