Regular Expressions 101

Pro

Negative Lookbehind(?<!^\s)

^start of line

\sany whitespace character

Positive Lookbehind(?<=[\((\,\s?)])

Character Class[\((\,\s?)]

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

\,the literal , (44₁₀ / 54₈ / 2C₁₆)

\sany whitespace character

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group 1(FoX::)?

?repeats the group contents below at most once:

FoX::the literal text FoX:: (case sensitive)

Imagethe literal text Image (case sensitive)

\s?optionally matches any whitespace character

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

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

Regular Expression

(?<!^\s)(?<=[\((\,\s?)])(FoX::)?Image\s?\*

New

, Image *
,Image *
(Image *
( Image *
, FoX::Image *
,FoX::Image *
(FoX::Image *
( FoX::Image *
/* [retval][out] */ ICscImage **pVal) = 0;
 Image* pImage = Image::Create();
 Image* pImage = Image::Create();

Substitution

, Image *
,Image *
(Image *
( Image *
, FoX::Image *
,FoX::Image *
(FoX::Image *
( FoX::Image *
/* [retval][out] */ ICscImage **pVal) = 0;
 Image* pImage = Image::Create();
 Image* pImage = Image::Create();