Regular Expressions 101

Positive Lookbehind(?<=^#\| label: .+)

^start of line

#the literal # (35₁₀ / 43₈ / 23₁₆)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

label: the literal text label: (case sensitive)

.+any Unicode character (except for line terminators), repeated at least once

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

(?<=^#\| label: .+)_

New

#| label: this_this_is_a_test
my_function_name <- function(x)

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