Substitution Modifiers : substitution « Regular Expression « Perl






  1. Perl
  2. Regular Expression
  3. substitution

Substitution Modifiers

    
Modifier    Meaning
e           Evaluate the replacement side as an expression.
i           Turn off case sensitivity.
m           Treat a string as multiple lines.[a]
o           Compile pattern only once. Used to optimize the search.
s           Treat string as single line when newline is embedded.
x           Allow whitespace and comments within the regular expression.
g           Replace globally; i.e., find all occurrences.








Related examples in the same category

1.Options for the substitution operator.
2.Replace pattern
3.Replace pattern with ()
4.Substitute I with N and print
5.Substitute N with J
6.Substitute every T with M
7.Substitute first T with an M
8.Substitute first occurrence of "blue" with "red"
9.Substitute tom with Mary
10.Substitution Example
11.Using substitutions to clean up input data.
12.Capitalize all sentences
13.Using Patterns with Substitutions
14.Changing substitution delimiters
15.Increase salary with pattern match
16.Evaluate replacement
17.Alternation: /John|Karen|Steve/ will match a line containing John or Karen or Steve.
18.Options for the S Operator
19.Ignore case, global substitution