Regular Expressions 101

<bookthe literal text <book (case sensitive)

.*?any character, repeated any number of times

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

Group 1(.*?)

.*?any character, repeated any number of times

"the literal " (34₁₀ / 42₈ / 22₁₆)

.*?any character, repeated any number of times

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

Group 2(.*?)

.*?any character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

author>the literal text author> (case sensitive)

.*?any character, repeated any number of times

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

Group 3(.*?)

.*?any character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

title>the literal text title> (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

<book.*?id="(.*?)".*?<author>(.*?)<\/author>.*?<title>(.*?)<\/title>

New

<catalog>
  <book id="bk101">
    <author>Gambardella, Matthew</author>
    <title>XML Developer's Guide</title>
    <genre>Computer</genre>
    <price>
       <amount>25</amount>
       <tax>12</tax>
       <total>37</total>
    </price>
    <publish_date>2000-10-01</publish_date>
    <description>An in-depth look at creating applications with XML</description>
  </book>
</catalog>

Regular Expression

Substitution