Regular Expressions 101

<testthe literal text <test (case sensitive)

Negative Lookahead(?!.+href)

.+any character (except for line terminators), repeated at least once

hrefthe literal text href (case sensitive)

.+any character (except for line terminators), repeated at least once

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.

Search reference

Regular Expression

<test(?!.+href).+

New

<test  abc="xyz_CHCFGRc/abc_CHmnop" href="sdddzus.xml">text</test>
<test  abc="abc_abc>text23</test>
<test  abc="123_ABCc/abc_CHmnoph">text42</test>