Regular Expressions 101

Explanation

Pro

^start of line

examplethe literal text example (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

accountthe literal text account (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:\?[^#\r\n]*)?

?repeats the group contents below at most once:

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Negated Character Class[^#\r\n]*

*matches any number of characters outside the set below:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\ra carriage return (ASCII 13)

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

Non-Capturing Group(?:#home\.html)?

?repeats the group contents below at most once:

#homethe literal text #home (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

htmlthe literal text html (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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

26 tokens

Regular Expression

^example\.com\/account\/(?:\?[^#\r\n]*)?(?:#home\.html)?$

New

example.com/account/
example.com/account/?brand=mine
example.com/account/#home.html
example.com/account/?brand=mine#home.html
example.com/account/#other.html
example.com/account/?brand=mine#other.html

Substitution

example.com/account/
example.com/account/?brand=mine
example.com/account/#home.html
example.com/account/?brand=mine#home.html
example.com/account/#other.html
example.com/account/?brand=mine#other.html