The m modifier controls the behavior of the $ and ^ anchor metacharacters. : modifier « Regular Expression « Perl






  1. Perl
  2. Regular Expression
  3. modifier

The m modifier controls the behavior of the $ and ^ anchor metacharacters.

    

# Anchors and the m modifier

$_="\nTomorrow will never be here.\n";
print if /^Tomorrow/;    # Embedded newline

$_="\nTomorrow will never be here.\n";
print if /\ATomorrow/;   # Embedded newline

$_="\nTomorrow will never be here.\n";
print if /^Tomorrow/m;

$_="\nTomorrow will never be here.\n";
print if /\ATomorrow/m;

$_="\nTomorrow will never be here.\n";
print if /history\.$/m;








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 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