Regular Expressions 101

Pro

Positive Lookbehind(?<=(/|^))

Group 1(/|^)

1st Alternative/

/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative^

^start of line

Group 2(((/|^)|(\w*:))(?<node>.*?))

Group 3((/|^)|(\w*:))

1st Alternative(/|^)

Group 4(/|^)

1st Alternative/

/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative^

^start of line

2nd Alternative(\w*:)

Group 5(\w*:)

\w*a Unicode word character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group node(?<node>.*?)

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

Positive Lookahead(?=/|$)

1st Alternative/

/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative$

$end of line

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

(?<=(/|^))(((/|^)|(\w*:))(?<node>.*?))(?=/|$)

New

elem1/ns:elem2/ns2:elem3/@name
/elem/n:node1/node2/c:node3

elem1/ns:elem2/ns2:elem3/@name
/elem/n:node1/node2/c:node3