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

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Perl » Regular Expression » modifier

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

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