Regular Expressions 101

Explanation

Pro

^start of line

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

rootthe literal text root (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^\/\n]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

Non-Capturing Group(?:\/index\.shtml)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

indexthe literal text index (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

shtmlthe literal text shtml (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

25 tokens

Regular Expression

^\/root\/[^\/\n]+(?:\/index\.shtml)?$

/root/index.shtml
/root/root_one.shtml
/root/one/index.shtml
/root/two/index.shtml
/root/two/test.shtml
/root/two/three/index.shtml
/root/2024/index.shtml
/root/2024/one.shtml

Substitution

/root/index.shtml
/root/root_one.shtml
/root/one/index.shtml
/root/two/index.shtml
/root/two/test.shtml
/root/two/three/index.shtml
/root/2024/index.shtml
/root/2024/one.shtml