Regular Expressions 101

Explanation

Pro

^start of line

SONGthe literal text SONG (case sensitive)

\ba Unicode word boundary

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

Group 1((?:\r?\n(?![A-Z][A-Z ]*$).*)*)

Non-Capturing Group(?:\r?\n(?![A-Z][A-Z ]*$).*)*

*repeats the group contents below any number of times:

\r?optionally matches a carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?![A-Z][A-Z ]*$)

Character Class[A-Z]

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

Character Class[A-Z ]*

*matches any number of characters from the set below:

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

the literal (32₁₀ / 40₈ / 20₁₆)

$end of line

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

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

^SONG\b.*((?:\r?\n(?![A-Z][A-Z ]*$).*)*)

New

And I lie listening awake?    
SONG    
You are as gold    
The half-opened flowers    
For your face is as fair as rain,    
Yet as rain that lies clear    
Casts light for a shadow.    
AT BAIA    
I should have thought