Regular Expressions 101

counterthe literal text counter (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Negated Character Class[^)]*

*matches any number of characters outside the set below:

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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.

Search reference

Regular Expression

counter\([^)]*\)

New

counter()
counter(123, "this string has (nested) parentheses")
counter(123, "this string has mis-matched)( parentheses")

counter(item)" " attr(data) "" counter(item1,decimal) url('test.jpeg') "hi" attr(xyz);