regex101: Metadata tag find and update

Pro

<metathe literal text <meta (case sensitive)

\sany whitespace character

Character Class[a-bA-Z]

a-bone character from a (97₁₀) to b (98₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Negated Character Class[^X\-UA\-Compatible]

Xthe literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Uthe literal U (85₁₀ / 125₈ / 55₁₆) (case sensitive)

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case sensitive)

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case sensitive)

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

tthe literal t (116₁₀ / 164₈ / 74₁₆) (case sensitive)

ithe literal i (105₁₀ / 151₈ / 69₁₆) (case sensitive)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case sensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

Character Class[.*]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

<meta\s[a-bA-Z][^X\-UA\-Compatible][.*]\/?>

New

<h1>Ceci est <u>un test</u></h1>
            <table>
            <tr valign="center">
            <td><h1 style="display:block; font-weight:700; font-size:26;">Niveau H1</h1>
            <h2 style="display:block; font-weight:700; font-size:20;">Niveau H2</h2>
            <h3>Niveau H3</h3></td>
            </tr>
            <tr>
            <td><h4>Niveau H4</h4><h5>Niveau H5</h5><h6>Niveau H6</h6></td>
            </tr>
            </table>

Extraction

<h1>Ceci est <u>un test</u></h1>
            <table>
            <tr valign="center">
            <td><h1 style="display:block; font-weight:700; font-size:26;">Niveau H1</h1>
            <h2 style="display:block; font-weight:700; font-size:20;">Niveau H2</h2>
            <h3>Niveau H3</h3></td>
            </tr>
            <tr>
            <td><h4>Niveau H4</h4><h5>Niveau H5</h5><h6>Niveau H6</h6></td>
            </tr>
            </table>