Regular Expressions 101

Pro

Group file(?P<file>^(?P<artist>[a-zA-Z0-9\'\.\s]*)\s\-\s(?P<title>[a-zA-Z0-9\'\.\s]*)\.(?P<format>mp3|m4a)$)

^start of line

Group artist(?P<artist>[a-zA-Z0-9\'\.\s]*)

Character Class[a-zA-Z0-9\'\.\s]*

*matches any number of characters 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)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sany whitespace character

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\sany whitespace character

Group title(?P<title>[a-zA-Z0-9\'\.\s]*)

Character Class[a-zA-Z0-9\'\.\s]*

*matches any number of characters 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)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\'the literal ' (39₁₀ / 47₈ / 27₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\sany whitespace character

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group format(?P<format>mp3|m4a)

1st Alternativemp3

mp3the literal text mp3 (case sensitive)

2nd Alternativem4a

m4athe literal text m4a (case sensitive)

$end of line

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

(?P<file>^(?P<artist>[a-zA-Z0-9\'\.\s\(\)]*)\s\-\s(?P<title>[a-zA-Z0-9\'\.\s\(\)]*)\.(?P<format>mp3|m4a)$)

demon.devin - Instrumental (Deja Entendu Remix).mp3
demon.devin - deception.m4a

<li data-title="${title}" data-artist="${artist}" data-type="${format}" data-url="http://www.example.com/music/${file}" data-free="false"></li>

demon.devin - Instrumental (Deja Entendu Remix).mp3
demon.devin - deception.m4a