Hi,

I am trying to read a file containing the following strings: "Width = 32" and "Descr - This is Register1 comment"

and extract the Width = 32 from file, but my code fails to match.

File contains:

Width = 32
<uart0_rx_data : 16'h0000>
Descr - "This is Register1 comment"
# f_name    bit_pos            
RESERVED    31:8    
RXDATA        5:0        
</uart0_rx_data>

[download]

Code snippet: 


if($line =~ m/^Width[\s]*\=[\s]*\d+$/) # to match Width
{
  update_curs    ($line);
}
elsif ($line =~ m/^Descr[\s]*-[\s]*[\w]+$/) # to match Descr
{
  update_curs    ($line);
}
else
{
  printf "Garbage found: \"%s\" \n",$line;
}

[download]

Output: Garbage found: "Width = 32"

Kindly help.

UPDATE: Thanks. I have removed extra spaces and new line character in my code. When I run the code individually it works, but when integrated with main package it doesn't work. As tobyink mentioned "Descr" is not matched.

sub validate_save_regs 
{
    my $line = $_;
        chomp $line;
    if($line =~ m/^Width[\s]*\=[\s]*\d+$/){
            $reg_width_found = 1;
        update_curs    ($line);
    }
    elsif ($line =~ m/^Descr[\s]*-[\s]*[\w]+$/)
    {
        printf "inside elsif, line is %s\n",$line;
        if(!$reg_offset_found)
        {
            printf    "Garbage found at: %d \n", $line_no;
            exit(0);
        }
        $name_found     = 1;
        update_curs    ($line);
    }
    else 
    {
        printf    "Garbage found %s\n", $line;
    }
}

[download]

In this integrated code "Descr - This is Register1 comment" doesn't match and goes to Garbage rule.

In reply to Regular Expression by pramod

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