Regular Expressions 101

^start of string

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)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\%the literal % (37₁₀ / 45₈ / 25₁₆)

\_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

\<the literal < (60₁₀ / 74₈ / 3C₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

$end of string, or before its final line terminator

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

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Search reference

Regular Expression

^[a-zA-Z\+\-\/\*\%\_\>\<=]*$

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