correct API to get current textual WC modifications, for parsing postprocessing

[Jens Frederich]

I try to get all line changes in the current changeset. Not sure what the
right API is.  I have created a delta tree with the following to see if it
is a file and textual modifications. How do I get the content?

  SVN_ERR(svn_fs_revision_root(&base_root, fs, base_rev, pool));
  SVN_ERR(svn_repos_node_editor(&editor, &edit_baton, repos, base_root,
root, pool, edit_pool)));
  SVN_ERR(svn_repos_replay2(root, "", SVN_INVALID_REVNUM, TRUE, editor,
edit_baton, NULL, NULL, edit_pool));
  *tree = svn_repos_node_from_baton(edit_baton);

Jens