Regular Expressions 101

Pro

Non-Capturing Group(?:[pqrv^~]|<?=>)

1st Alternative[pqrv^~]

Character Class[pqrv^~]

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case sensitive)

qthe literal q (113₁₀ / 161₈ / 71₁₆) (case sensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case sensitive)

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

^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

2nd Alternative<?=>

<?optionally matches the literal < (60₁₀ / 74₈ / 3C₁₆)

=>the literal text =>

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

Regular Expression

(?:[pqrv^~]|<?=>)

New

I want to write a regex pattern which find strings containts only: p, q, r, ^, v and ~ signs, but also implication and equivalence, represented by two (=>) or three (<=>) signs. How can I do that?

Substitution

I want to write a regex pattern which find strings containts only: p, q, r, ^, v and ~ signs, but also implication and equivalence, represented by two (=>) or three (<=>) signs. How can I do that?