Allow mirrors to be defined in the index

Several wordnet projects have changes that will require some new features in the index.

• The OMW English Wordnet was misnamed the Princeton WordNet previously. The old and new data should be renamed, along with the identifiers and versions (e.g., pwn:3.0 -> wn30:1.4+omw). When someone uses the old identifier, a warning should be issued as it redirects to the new resource.
• It might also be useful to have a general mechanism for displaying messages when someone downloads a wordnet. One use for this is to recommend users of the upcoming OWN-PT wordnet to also get the OWN-EN wordnet to go along with it.
• There have been some reliability issues with servers hosting wordnets (see #141), so it would be good to be able to specify a mirror in case one server times out.

These changes might look like this:

[pwn]
  warn = "This project has been renamed. See https://... for more information."
  [pwn.versions."3.0"]
    redirect = "wn30:1.4+omw"
  [pwn.versions."3.1"]
    redirect = "wn31:1.4+omw"

[wn30]
  label = "OMW English Wordnet 3.0"
  [wn30.versions."1.4+omw"]
    url = "https://..."

[wn31]
  label = "OMW English Wordnet 3.1"
  [wn31.versions."1.4+omw"]
    url = "https://..."

[ewn]
  label = "Estonian Wordnet"
  # ...
  [ewn.versions.2020]
    warn = "The Open English WordNet is now under the identifier 'oewn'. See https://... for more information."
    redirect = "oewn:2020"

[oewn]
  label = "Open English WordNet"
  language = "en"
  license = "https://creativecommons.org/licenses/by/4.0/"
  [oewn.versions.2020]
    urls = [
      "https://en-word.net/static/english-wordnet-2020.xml.gz",
      "https://...",
    ]
  [oewn.versions.2019]
    urls = [
      "https://en-word.net/static/english-wordnet-2019.xml.gz",
      "https://...",
    ]

[fcbond]

This looks reasonable.

On Fri, Oct 22, 2021 at 4:19 AM Michael Wayne Goodman < @.***> wrote:

Another alternative, specify the error message in the index and don’t bother with warnings or redirects. E.g.:

[pwn] error = “Instead of ‘pwn:3.0’ and ‘pwn:3.1’, please use ‘wn30’ and ‘wn31’.”

Then…

wn.download(‘pwn:3.0’) Traceback (most recent call last): … wn.Error: Instead of ‘pwn:3.0’ and ‘pwn:3.1’, please use ‘wn30’ and ‘wn31’.

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– Francis Bond http://www3.ntu.edu.sg/home/fcbond/ Division of Linguistics and Multilingual Studies Nanyang Technological University

[fcbond]

That seems like a very good idea.

On Sat, Oct 23, 2021 at 6:41 AM Michael Wayne Goodman < @.***> wrote:

In that case #146 https://github.com/goodmami/wn/issues/146 is for adding error and this issue is about adding mirrors.

I think I might just extend the current url key to accept a space-separated list of URLs:

[oewn] label = “Open English WordNet” language = “en” license = “https://creativecommons.org/licenses/by/4.0/” [oewn.versions.2020] url = “”" https://en-word.net/static/english-wordnet-2020.xml.gz https://… “”"

This way there’s no change for those with only one URL.

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– Francis Bond http://www3.ntu.edu.sg/home/fcbond/ Division of Linguistics and Multilingual Studies Nanyang Technological University