Regular Expressions 101

Group 1(^.*?)

^start of line

.*?any character (except for line terminators), repeated any number of times

Group 2( )

the literal (32₁₀ / 40₈ / 20₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(^.*?)( )

New

This is a sentence
Another sentence shall follow up
And yet a third sentence

The goal of these sentences is to show 
first spaces that pop up in different line positions
then we'll use regular expressions to 
select that first space and then replace that space with 
first your insert character and then that space. 
 This one starts with a space just to cover that
 useage scenario

Regular Expression

Extraction