Regular Expressions 101

class="the literal text class=" (case sensitive)

Non-Capturing Group(?:row|[^"]* row)

1st Alternativerow

rowthe literal text row (case sensitive)

2nd Alternative[^"]* row

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

rowthe literal text row (case sensitive)

Negative Lookahead(?![^" ])

Negated Character Class[^" ]

"the literal " (34₁₀ / 42₈ / 22₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

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.

Search reference

Regular Expression

class="(?:row|[^"]* row)(?![^" ])[^"]*"

New

class="foo_bar bar row test"
class="row"
class="hello foo bar  row"
class=" foo bar  row test "
class="hello"  row
class="narrow"
class="rowdy"