Regular Expressions 101

Explanation

Pro

^start of line

/etc/the literal text /etc/ (case sensitive)

Group 1(xx|yy)

1st Alternativexx

xxthe literal text xx (case sensitive)

2nd Alternativeyy

yythe literal text yy (case sensitive)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(abc|xyz)

1st Alternativeabc

abcthe literal text abc (case sensitive)

2nd Alternativexyz

xyzthe literal text xyz (case sensitive)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 3(.*?)

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

Non-Capturing Group(?://.*)?

?repeats the group contents below at most once:

//the literal text //

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

$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

^/etc/(xx|yy)/(abc|xyz)/(.*?)(?://.*)?$

New

/etc/xx/abc/path/to/controller//myDesiredMVCAction

and not:

/etc/xx/abc/path/to/controller

/etc/xx/abc/path/to/controller//myDesiredMVCAction

and not:

/etc/xx/abc/path/to/controller