Regular Expressions 101

Pro

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

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

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Patthe literal text Pat (case insensitive)

\ban ASCII word boundary

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 1("\s*:)

"the literal " (34₁₀ / 42₈ / 22₁₆)

\s*any whitespace character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

(?i)"[^"]* Pat\b[^"]*("\s*:)

New

{1-Emp Name: "John", "2-Emp pat" : 1123,"3-Emp lwd" : 20}, "4-Emp Pat" : 1234}

"matched pattern$1

{1-Emp Name: "John", "2-Emp pat" : 1123,"3-Emp lwd" : 20}, "4-Emp Pat" : 1234}