Regular Expressions 101

Explanation

Pro

Positive Lookbehind(?<=TITLE[^\][]*\|prefix=)

TITLEthe literal text TITLE (case sensitive)

Negated Character Class[^\][]*

*matches any number of characters outside the set below:

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

prefix=the literal text prefix= (case sensitive)

Negated Character Class[^\]|]+

+matches at least one character outside the set below:

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

26 tokens

Regular Expression

(?<=TITLE[^\][]*\|prefix=)[^\]|]+

New

[TITLE][DYNAMIC|prefix=Y] // Works, since prefix is nowhere defined for the tag TITLE
[TITLE|suffix=X][DYNAMIC|prefix=Y] // Works not, since there is a match but for the wrong tag
[TITLE|prefix=X]