Regular Expressions 101

CAthe literal text CA (case sensitive)

\sany whitespace character

19the literal text 19

Character Class[-|\s]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

\sany whitespace character

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

\sany whitespace character

Group 1(\d+)

\d+a digit, repeated at least once

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.

26 tokens

Regular Expression

CA\s19[-|\s]9\s(\d+)

New

CA 19-9 25 U/mL 0 - 35 01
CA 19 9 25 U/mL 0 - 35 01