Regular Expressions 101

Pro

1st Alternative\\[a-zA-Z]*

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[a-zA-Z]*

*matches any number of characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

2nd Alternative\S

\Sany character that is not Unicode whitespace

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

Detailed match information will be displayed here automatically.

25 tokens

\\[a-zA-Z]*|\S

{qcos\theta_{g}\over r})^{2\over 1 + \alpha^{2}}}\ 1234

{qcos\theta_{g}\over r})^{2\over 1 + \alpha^{2}}}\ 1234