Regular Expressions 101

Pro

Group 1(.*<ct>[0-9]{11}<\/ct>.*<bw>)

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

<ct>the literal text <ct> (case sensitive)

Character Class[0-9]{11}

{11}matches exactly 11 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

ct>the literal text ct> (case sensitive)

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

<bw>the literal text <bw> (case sensitive)

Group 2([0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Group 3(<\/bw>.*)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

bw>the literal text bw> (case sensitive)

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

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.

25 tokens

(.*<ct>[0-9]{11}<\/ct>.*<bw>)([0-9]+)(<\/bw>.*)

New

<item><ln></ln><fn>Some person</fn><ct>07123456789</ct><sd>37</sd><rt>1</rt><bw>1</bw></item>

${1}0$3

<item><ln></ln><fn>Some person</fn><ct>07123456789</ct><sd>37</sd><rt>1</rt><bw>1</bw></item>