Regular Expressions 101

Pro

<the literal text < (case sensitive)

Group 1(/?\w+(?:\s[^>]*)?>)

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

\w+any word character, repeated at least once

Non-Capturing Group(?:\s[^>]*)?

?repeats the group contents below at most once:

\sany whitespace character

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>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

Detailed match information will be displayed here automatically.

27 tokens

Regular Expression

&lt;(/?\w+(?:\s[^>]*)?>)

&lt;parent>
    &lt;child1>
        &lt;xmltag1>4 aÃ±os &lt; 8 &lt;/xmltag1>
        &lt;xmltag2>3 aÃ±os &lt; 12 &lt;/xmltag2>
    &lt;child1>
&lt;/parent>

Substitution

<$1

&lt;parent>
    &lt;child1>
        &lt;xmltag1>4 aÃ±os &lt; 8 &lt;/xmltag1>
        &lt;xmltag2>3 aÃ±os &lt; 12 &lt;/xmltag2>
    &lt;child1>
&lt;/parent>