Regular Expressions 101

1st Alternative<(th|td)>.*?<\/\1>(*SKIP)(*F)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Group 1(th|td)

1st Alternativeth

ththe literal text th (case sensitive)

2nd Alternativetd

tdthe literal text td (case sensitive)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

.*?any character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\1the text saved by group 1

>the literal > (62₁₀ / 76₈ / 3E₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative\n

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

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

s modifier: single line. Allows a dot to match line terminators

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

<(th|td)>.*?<\/\1>(*SKIP)(*F)|\n

<table>
<tr><th>HEader 1</th><th> header 
2</th>
</tr>
<tr><td>cell 
content</td><td>cell 2</td></tr>
</table>