Introduce slug and dates in "ids.xml" about fredracor

[cmil]

Before implementing the slug, I'd like to make sure we have a common understanding of what we want to achieve. The idea (at least mine) of using names instead of IDs for filenames and URL slugs was to make those easy to recognise and memorable. IMO the example slugs added in 4ba1157 tend to deviate from that idea. Some of them are way too long to be memorable and it takes quite some visual parsing to distinguish the different farces nouvelles from each other. I think we should stick to shorter slugs, also considering that they would end up as file names where an excessive length would be rather impractical for various reasons.

Also, underscores in the original filenames are already replaced by dashes when adding the files to fredracor, so slug overrides like anonyme-adam or most of the racine-* ones wouldn't actually be necessary.

[lehkost]

All very good points, and I agree we should put purpose first. So we might abandon the slug idea in general. Or, inherit the filename from TC, lowercase and dash it as we already do, but additionally divide words in our slugs.

E.g. "anonyme-resurrectionjeninlandore" → "anonyme-resurrection-jenin-landore"

If we'd be a commercial website, I'd argue that we do this for SEO reasons. 😊 But since we aren't, I'd argue that this leads to better readability (also since URLs/slugs will land in our data files and spreadsheets for analyses).

So, if we decide to do it this way, should we strive for an automatic solution that uses the title pattern to divide slugs, or manually?

[lehkost]

I just committed the compromise proposed above (28edf10).

Slugs now feature the exact same letters as in the original TC, but individual words are separated with dashes (both authors and abbreviated titles). I kept the underscore between author(s) and titles, in case we need it later. Other than that, underscores can still be transformed to dashes in the URL.

Examples:

• "LAFONTLESAGE_QUERELLEDESTHEATRES.xml" → "lafont-lesage_querelle-des-theatres.xml"

I did not remove obvious spelling mistakes (there are just a few), like this:

• "DIDEROT_ENTRETIENDELAMBERTDIDEROT.xml" → "diderot_entretien-d-elambert-diderot.xml" (should be "d'alembert")

[cmil]

@lehkost please have a look at the above PR. I replaced all underscores with hyphens for simplicity. I also removed all slug attributes that are not strictly necessary because they affect the performance of the transformation script. I also updated the staging database with the new versions.