Go Premium for a chance to win a PS4. Enter to Win

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 290
  • Last Modified:

Pattern Matching

Consider the following variables
$line = "<FONT color=\"#ff0060\">Color</FONT> printers are laser color printers";
$match_str = "color";

I have to match and replace $match_str in $line with <FONT color="#ff0060">$match_str</FONT>. But 'color' inside <FONT> tag should not be matched and replaced .


My output should be
<FONT color="#ff0060">Color</FONT> printers are laser <FONT color="#ff0060">color</FONT> printers .

I am searching for 'color' ($match_str) in the given $line to highlight that word in red color . The pattern should not match 'color' inside the FONT tag . But it should match and highlight the word 'color' in the line other than the one inside FONT .

How to search this pattern match and replace ?

Thanks for the help.
Lakshmi
0
lakshmisubram
Asked:
lakshmisubram
  • 3
  • 2
1 Solution
 
ozoCommented:
Which of the three "color"s above should be replaced, and what should they be replaced with?
0
 
ozoCommented:
$line =~ s/\b\Q$match_str\E\b|(<[^<>]*>)/$1||qq<<font color="#ff0060">$match_str<\/FONT>>/egi;
0
 
lakshmisubramAuthor Commented:
Thank you so much !! It's working fine .
Can you please explain your regex in words ? ( Since I am novice in regex )
0
 
ozoCommented:
b\Q$match_str\E\b matches the word "color"
(<[^<>]*>) matches a string in <> and saves it in $1
$1||qq<<font color="#ff0060">$match_str<\/FONT>> puts the $1 back, or inserts <FONT color="#ff0060">Color</FONT>
0
 
lakshmisubramAuthor Commented:
Thanks you so much !!It's more clear to me now .
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now