Regular Expressions 101

^start of line

Group 1(\s*)

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

stylethe literal text style (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

data-above-the-fold="true"the literal text data-above-the-fold="true" (case sensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\na line-feed (newline) character (ASCII 10)

Group 2(\1\s+.*\n)*

*repeats the group contents below any number of times:

\1the text saved by group 1

\s+any whitespace character, repeated at least once

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

\na line-feed (newline) character (ASCII 10)

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

^(\s*)style\(data-above-the-fold="true"\)\.\n(\1\s+.*\n)*

Test String
New

DOCTYPE html
html
	head
		title gulp-gotohead
		style.
			article {border:1px solid}
		style(data-above-the-fold="true").
			body {font-size:100%}
			body{font-size:100%}
			body.main{font-size:100%}
			body, h1{font-size:100%}
			body>h1{font-size:100%}
			header {color:#333}
		script(data-above-the-fold="true").
			var head = Head();
			head();
	body (data-d="true")
		h1 gulp-gotohead
		p
			span regex

Regular Expression

Test StringNew

Test String
New