Regular Expressions 101

Explanation

Pro

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 1(quote)

quotethe literal text quote (case sensitive)

\]?optionally matches the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

Non-Capturing Group(?:author)?

?repeats the group contents below at most once:

authorthe literal text author (case sensitive)

=?optionally matches the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 2(.[^link=|pid=]+[\w]*)

.any character (except for line terminators)

Negated Character Class[^link=|pid=]+

+matches at least one character outside the set below:

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

nthe literal n (110₁₀ / 156₈ / 6E₁₆) (case sensitive)

kthe literal k (107₁₀ / 153₈ / 6B₁₆) (case sensitive)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case sensitive)

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

Character Class[\w]*

*matches any number of characters from the set below:

\wany word character

.*?any character (except for line terminators), repeated any number of times

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

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

25 tokens

Regular Expression

\[(quote)\]?\s*(?:author)?=?(.[^link=|pid=]+[\w]*).*?\]

[quote author=Username link=1150111054/0#7 date=1150151926]Test[/quote]
[quote=Username]Test[/tag]
[quote='User Name' pid=30983083830]Test[/quote]
[quote='User Name' pid='1082654' dateline='1411779439']Test[/quote]
[quote='Username' pid='1082333' dateline='1411592294']
[quote] Test Username pid=1142890417/0#43 date=1156429613]Test[/quote]
[quote='User Name' pid=123456]Test.[/quote]
[quote] User Name link=1142890417/0#43 date=1156429613]Test[/quote]
[quote] username link=1142890417/0#43 date=1156429613]Test code[/quote]

Substitution

[$1=$2]

[quote author=Username link=1150111054/0#7 date=1150151926]Test[/quote]
[quote=Username]Test[/tag]
[quote='User Name' pid=30983083830]Test[/quote]
[quote='User Name' pid='1082654' dateline='1411779439']Test[/quote]
[quote='Username' pid='1082333' dateline='1411592294']
[quote] Test Username pid=1142890417/0#43 date=1156429613]Test[/quote]
[quote='User Name' pid=123456]Test.[/quote]
[quote] User Name link=1142890417/0#43 date=1156429613]Test[/quote]
[quote] username link=1142890417/0#43 date=1156429613]Test code[/quote]