Regular Expressions 101

Explanation

Pro

1st Alternative'((?:([^']*?)\\'[^']*?)*?)'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 1((?:([^']*?)\\'[^']*?)*?)

Non-Capturing Group(?:([^']*?)\\'[^']*?)*?

*?repeats the group contents below any number of times:

Group 2([^']*?)

Negated Character Class[^']*?

*?matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*?

*?matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative(?:\\')[^']*'([^']*)'

Non-Capturing Group(?:\\')

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 3([^']*)

Negated Character Class[^']*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

3rd Alternative'([^']*?)'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 4([^']*?)

Negated Character Class[^']*?

*?matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Global pattern flags

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

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

'((?:([^']*?)\\'[^']*?)*?)'|(?:\\')[^']*'([^']*)'|'([^']*?)'

New

'test'      
more'test'      
'test'more      
\'no'yes'      
a 'one' and 'two' and 'three'...      
nothing at all      
''      
''test      
test''      
te''st      
'This is not wrong' and 'this isn\'t either'       
'tw\'o repl\'acements' in 't\'wo stri\'ngs'.       
'\\''      
'''      
'test1'\n'test2'      
''''      

[^\\]'([^']*)'|

{;nF, yy]fKAf<6H]T74R}1k#HUIc|]Rqz-Ce72-D%vz&Nm rw=81:1_Y&e,34pL.amQmAoj*m;6ObGN]#u71j%+H\'}4}b~|nTy]<B7umVMx;tN%QUPY=P`67F4Rert4Cy'PMOJwnmc2s\'4f<EEmh,yj3Uf/u[lbc/dAgl*Xd%oY,T;+\"2_f{BzP`.#v(yGtX\'O+4eU[P.3&1s+ xm!


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