qq/STRING/ Function of Regular Expression in Perl
What is qq/STRING/ Function in Perl?
How to interpolate variables?
Explanation
The qq/STRING/ function of regular expression in perl is used to interpolate all variables but ignores double quotes, this is usefull while printing html tags which requires lot of doublequotes for each tag, this can be solved by using "qq/string/", user can use any delimiters instead of "/".
qq/STRING/;
#! C:programfilesperlbinperl
print "content-type: text/htmlnn";
print qq^I love india<br>I love the world^; Result :
I love india
I love the world
In the above example we have used "^" as the delimiter for "qq/string/" and even though the strings and the html tag <br> is without double quotes, it assumes having double quotes and print the string in two different lines.
Syntax:
qq/STRING/;
Example to interpolate variables:
#! C:programfilesperlbinperl
print "content-type: text/htmlnn";
print qq^I love india<br>I love the world^;
I love india
I love the world
In the above example we have used "^" as the delimiter for "qq/string/" and even though the strings and the html tag <br> is without double quotes, it assumes having double quotes and print the string in two different lines.
