Evernote Document Loader Concatenates All Notes Together

[MikeMcGarry]

Feature request

The EverNoteLoader treats an export from Evernote as a very large text document by combining the content from all notes into a single long text string.

It also only saves the name of the export file as metadata on this large document.

This isn't terribly useful when interrogating data from Evernote whereby you might export an entire notebook which contains many notes, see an example notebook export below which has two notes. Ideally we should treat each note as an independent document with it's own richer metadata e.g. created, updated, title etc. to make retrieval more effective.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE en-export SYSTEM "http://xml.evernote.com/pub/evernote-export4.dtd">
<en-export export-date="20230611T011239Z" application="Evernote" version="10.56.9">
  <note>
    <title>Test</title>
    <created>20230511T011217Z</created>
    <updated>20230511T011228Z</updated>
    <note-attributes>
      <author>Michael McGarry</author>
    </note-attributes>
    <content>
      <![CDATA[<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE en-note SYSTEM "http://xml.evernote.com/pub/enml2.dtd"><en-note><div>abc</div></en-note>      ]]>
    </content>
  </note>
  <note>
    <title>Summer Training Program</title>
    <created>20221227T015948Z</created>
    <updated>20221227T020423Z</updated>
    <note-attributes>
      <author>Michael McGarry</author>
      <latitude>{redacted}</latitude>
      <longitude>{redacted}</longitude>
      <altitude>{redacted}</altitude>
      <source>mobile.iphone</source>
    </note-attributes>
    <content>
      <![CDATA[<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE en-note SYSTEM "http://xml.evernote.com/pub/enml2.dtd"><en-note><div><b>Jan - March 2022</b></div></en-note>      ]]>
    </content>
  </note>
</en-export>

Motivation

Looking to add a tool to an agent which can interrogate my Evernote journal entries.

Your contribution

I can put together a PR for this.

[MikeMcGarry]

@eyurtsev / @dev2049 I have submitted a PR to make this improvement. Thanks for all your work on Langchain, really enjoying using it. Looking forward to your feedback!