Regular Expressions 101

Pro

1st Alternativename$(['"]).*?\1$

namethe literal text name (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 1(['"])

Character Class['"]

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

\1the text saved by group 1

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

Group 2('[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*")

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

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^'\\]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

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

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

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)

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

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

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

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

No unit tests · Add a test to get started

25 tokens

Regular Expression

name\((['"]).*?\1\)|('[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*")

Unit Tests

There are no unit tests, click to add some.