httpthe literal text http (case sensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case sensitive)
\:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
Negative Lookahead(?!backbone) backbonethe literal text backbone (case sensitive) \S+any non-whitespace character, repeated at least once
\.the literal . (4610 / 568 / 2E16)
comthe literal text com (case sensitive) Positive Lookahead(?=(?:(?!http)[^])*https?\:\/\/backbone.js) Non-Capturing Group(?:(?!http)[^])* *repeats the group contents below any number of times:
Negative Lookahead(?!http) httpthe literal text http (case sensitive) [^]any character, including newline
httpthe literal text http (case sensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case sensitive)
\:the literal : (5810 / 728 / 3A16)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
backbonethe literal text backbone (case sensitive) .any character (except for line terminators)
jsthe literal text js (case sensitive) g modifier: global. Finds all matches instead of stopping after the first