Regular Expressions 101

Positive Lookbehind(?<=""title"":""(?i)Deadline""(?-i),""content"":"")

""the literal " (34₁₀ / 42₈ / 22₁₆)

titlethe literal text title (case sensitive)

""the literal " (34₁₀ / 42₈ / 22₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

""the literal " (34₁₀ / 42₈ / 22₁₆)

(?i)applies the following effective flags to the remainder of the pattern: gmi

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Deadlinethe literal text Deadline (case insensitive)

""the literal " (34₁₀ / 42₈ / 22₁₆)

(?-i)applies the following effective flags to the remainder of the pattern: gm

i modifier: -insensitive. Case-sensitive match

,the literal , (44₁₀ / 54₈ / 2C₁₆)

""the literal " (34₁₀ / 42₈ / 22₁₆)

contentthe literal text content (case sensitive)

""the literal " (34₁₀ / 42₈ / 22₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

""the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^""]+

+matches at least one character outside the set below:

""the literal " (34₁₀ / 42₈ / 22₁₆)

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

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Search reference

Regular Expression

(?<=""title"":""(?i)Deadline""(?-i),""content"":"")[^""]+

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