How to beautify xml code in rails application
Ruby core REXML::Document has pretty printing:
REXML::Document#write( output=$stdout, indent=-1, transitive=false, ie_hack=false )indent: An integer. If -1, no indenting will be used; otherwise, the indentation will be twice this number of spaces, and children will be indented an additional amount. For a value of 3, every item will be indented 3 more levels, or 6 more spaces (2 * 3). Defaults to -1
An example:
require "rexml/document"doc = REXML::Document.new "<a><b><c>TExt</c><d /></b><b><d/></b></a>"out = ""doc.write(out, 1)puts outProduces:
<a> <b> <c> TExt </c> <d/> </b> <b> <d/> </b></a>EDIT: Rails has already REXML loaded, so you only have to produce new document and then write the pretty printed XML to some string which then can be embedded in a <pre> tag.