Regular Expressions 101

^start of string

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Negated Character Class[^'"\d{v;<$_~|&A-Z]+

+matches at least one character outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\da digit

{the literal { (123₁₀ / 173₈ / 7B₁₆)

vthe literal v (118₁₀ / 166₈ / 76₁₆) (case sensitive)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

$the literal $ (36₁₀ / 44₈ / 24₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

$end of string, or before its final line terminator

Global pattern flags

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

s modifier: single line. Allows a dot to match line terminators

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Search reference

Regular Expression

^<[^'"\d{v;<$_~|&A-Z]+$

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