Regular Expressions 101

Explanation

Pro

1st Alternative^(?: )?\d+\.

^start of line

Non-Capturing Group(?: )?

?repeats the group contents below at most once:

the literal text (case sensitive)

\d+a Unicode decimal digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternative

the literal text (case sensitive)

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

^(?:<br/>)?\d+\.|<br/>

New

1.Nausea
<br/>2.Vomiting
<br/>3.Diarrhoea
<br/>4.Anorexia
<br/>5.Malaise
<br/>6.Fever
<br/>7.Pruritis
<br/>8.Rash
<br/>9.Headache
<br/>10.Pharyngitis
<br/>11.Cough
<br/>

Substitution

1.Nausea
<br/>2.Vomiting
<br/>3.Diarrhoea
<br/>4.Anorexia
<br/>5.Malaise
<br/>6.Fever
<br/>7.Pruritis
<br/>8.Rash
<br/>9.Headache
<br/>10.Pharyngitis
<br/>11.Cough
<br/>