The e Modifier Evaluating an Expression : modifier « Regular Expression « Perl





The e Modifier Evaluating an Expression

    

Format: s/search pattern/replacement string/e;

# The e and g modifiers
while(<DATA>){
      s/6/6 * 7.3/eg;       # Substitute 6 with product of 6 * 7.3

      print;
}
__DATA__
    5
    4
    6 6
    1
    666
    66

   
    
    
    
  










Related examples in the same category

1.The e modifier
2.The g Modifier Global Substitution
3.The m Operator and Matching
4.The m modifier controls the behavior of the $ and ^ anchor metacharacters.
5.The s Modifier-The Dot Metacharacter and the Newline
6.The s Operator and Substitution
7.The s operator supports a number of variables
8.The x Modifier: The Expressive Modifier
9.The i Modifier Case Insensitivity
10.\B matches only if the pattern is contained in a word.
11.The \s metasymbol and whitespace
12.ei modifier
13.Use /gc to remember position
14.Use \G to match rest of text
15.The \S metasymbol and nonwhitespace
16.Matching Modifiers
17.Inline Modifiers