Regular Expressions 101

Explanation

Pro

Group 1([a-zA-Z]{1})

Character Class[a-zA-Z]{1}

{1}matches one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

([a-zA-Z]{1})

New

SONG
Another test Songtitle
SongTitle
So.la.la
What, if a comma or 123 or ??? would be in the name?
Special characters like # or ! or % or anything else?

Substitution

$1.

SONG
Another test Songtitle
SongTitle
So.la.la
What, if a comma or 123 or ??? would be in the name?
Special characters like # or ! or % or anything else?