I'm always struggling with Regex, I want to replace multiple tags in my xml by one.

The content of each tag of <b> is dynamic, and it could include another tags

So having

   <a>
     <c>hi</c>
     <b>hello1</b>
     <b><f>bla</f></b>
     <b>hello3</b>
     <b>hello4</b>
   </a>

I want to replace all <b> tags by just one tag of mine <b>world</b>and left <c> as it is.

    <a>
     <c>hi</c>
     <b>world</b>
   </a>

Any idea how? It's better use an XML Parser instead?

Regards.

CodePudding user response：

XSLT solution:

<xsl:template match="/a">
  <a>
    <xsl:copy-of select="c"/>
    <b>world</b>
  </a>
</xsl:template>

CodePudding user response：

Try this

String html = " <a>"   
            "<c>hi</c>"   
            "<b>hello1</b>"   
            "<b>hello2</b>"   
            "<b>hello3</b>"   
            "<b>hello4</b>"   
            "</a>";
html = html.replaceAll("\\s", "").replaceAll("<b>.*</b>", " ").replaceFirst(" ", "<b>world</b>");       

This is the output

<a><c>hi</c><b>world</b></a>

CodePudding user response：

Use <a>.*<\/a> pattern with dot all option (flag s) and replace by something like <a><b>world</b></a>

or replace <b>.*<\/b> by <b>world</b>

see : https://regex101.com/r/fhdwbz/4