b:message and b:param

The tags <b:message> used for getting explicit message data which value stored at the server side of Blogger, while <b:param/> is additional parameter belong to <b:message>. Rendered message in HTML is vary based on Blog Language Settings.

The Syntax And Attribute

BLOGGER XML LANGUAGE

<b:message name='data:alias'>
      <b:param expr:value='data:[STRING]'/>
      <b:param value='STRING'/>
  </b:message>

• Tags <b:message> name value is an alias of data:.
• Tags <b:message> Only accept data:messages type.
• Tags <b:param/> is singleton.
• Tags <b:param/> can be working only if tag <b:message> have parameter.
• Tags <b:param/> value can be data:[STRING] or String.

Examples and Implementation

DATA MESSAGES THAT HAS NO PARAMETERS.

<b:message name='messages.by'/>
    messages.by origin is <data:message.by/>, This type of message has no
    parameter, so we can't give any <b:param/>.

A MESSAGE WITH A PARAMETER

<b:message name='messages.byAuthor'>
      <b:param expr:value='data:post.author.name'/>
  </b:message>
<b:param/> take data string <data:post.author.name/> which is
    who posted the post. For who set Blog language to English, the result will
    be By AuthorName.

CUSTOMIZE MESSAGE THAT HAS PARAMETER

<b:message name='messages.byAuthorLink'>
      <b:param value='foo'/>
      <b:param value='https://example.blogspot.com'/>
  </b:message>

This type of message has two parameters, we can customize it like above. The first <b:param/> is the name and the second one is the link of the author. The result will be 'By Foo' with given link.

Other Tag

• <b:attr>
• <b:case>
• <b:class>
• <b:comment>
• <b:default>
• <b:defaultmarkup>
• <b:defaultmarkups>
• <b:eval>
• <b:else>
• <b:include>
• <b:message>
• <b:section>
• <b:skin>
• <b:switch>
• <b:tag>
• <b:template-script>
• <b:template-skin>
• <b:widget>
• <b:widget-setting>
• <b:with>
• <![CDATA[]]>
• <data:.../>