regex101: PCRE (Legacy) Substitution Workspace

Non-Capturing Group(?:\G(?!^)|\bhref="(?=[^"]*\.(?:html?|php)"))

1st Alternative\G(?!^)

\Gstart of current search

Negative Lookahead(?!^)

^start of line

2nd Alternative\bhref="(?=[^"]*\.(?:html?|php)")

\ban ASCII word boundary

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

Positive Lookahead(?=[^"]*\.(?:html?|php)")

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:html?|php)

1st Alternativehtml?

htmthe literal text htm (case sensitive)

l?optionally matches the literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

2nd Alternativephp

phpthe literal text php (case sensitive)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"<_]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

25 tokens

Regular Expression

(?:\G(?!^)|\bhref="(?=[^"]*\.(?:html?|php)"))[^"<_]*\K_

New

href="http://some.site.com/path_here_and_here/site.html"
href="http://some.site.com/path_here_and_here/site.htm"
href="http://some.site.com/path_here_and_here/site.php"

href="http://some.site.com/path_here_and_here/site.exe"
href="http://some.site.com/path_here_and_here/site.zip"
href="http://some.site.com/path_here_and_here/site.sit"
href="http://some.site.com/path_here_and_here/site.dmg"

Substitution

-

href="http://some.site.com/path_here_and_here/site.html"
href="http://some.site.com/path_here_and_here/site.htm"
href="http://some.site.com/path_here_and_here/site.php"

href="http://some.site.com/path_here_and_here/site.exe"
href="http://some.site.com/path_here_and_here/site.zip"
href="http://some.site.com/path_here_and_here/site.sit"
href="http://some.site.com/path_here_and_here/site.dmg"