The i Modifier Case Insensitivity : modifier « Regular Expression « Perl

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Perl » Regular Expression » modifier 
The i Modifier Case Insensitivity
    

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

# Matching with the i option
while(<DATA>){
    print if /norma/i;     # Turn off case sensitivity
}
__DATA__
    Steve
    Jack
    Tom
    Norma
    James
    Jason

   
    
    
    
  
Related examples in the same category
1. The e Modifier Evaluating an Expression
2. The e modifier
3. The g Modifier Global Substitution
4. The m Operator and Matching
5. The m modifier controls the behavior of the $ and ^ anchor metacharacters.
6. The s Modifier-The Dot Metacharacter and the Newline
7. The s Operator and Substitution
8. The s operator supports a number of variables
9. The x Modifier: The Expressive Modifier
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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