Bad handling of UTF-8 IRIs in faceted browser

[jakubklimek]

This relates to #141, #142, #345, #346. Faceted browser 1.13.91 (latest in develop/7 since a few years back) is still having issues handling UTF-8 characters in IRIs.

Here: https://data.gov.cz/zdroj/datová-schránka/x7cab34; look at the entity type:

Also, in the "documents" list listing the named graphs from which the data is displayed, it looks like this:

When clicking it, it gets mangled even more: https://data.gov.cz/describe/?url=https%3A%2F%2Fdata.gov.cz%2Fzdroj%2Fdatov%C3%A1-schr%C3%A1nka%2Fx7cab34&graph=https%3A%2F%2Fdata.gov.cz%2Fzdroj%2Fdatov%C3%83%C2%A1-sada%2Fseznam-ovm instead of https://data.gov.cz/describe/?url=https%3A%2F%2Fdata.gov.cz%2Fzdroj%2Fdatov%C3%A1-schr%C3%A1nka%2Fx7cab34&graph=https%3A%2F%2Fdata.gov.cz%2Fzdroj%2Fdatov%C3%A1-sada%2Fseznam-ovm etc. There are more issues like this, making the browsing of such data impossible.

@pkleef Any chance of fixing this since some of the issues were reported more than 4 years ago and, as mentioned in https://github.com/openlink/virtuoso-opensource/issues/618#issuecomment-270274120, it is not updated in VOS anymore? The alternative for us is only developing our own simple LOD browser capable of correct Media type and UTF-8 handling.

[pkleef]

@jakubklimek I did not have enough time to merge this into the 7.2.5 release, but i have scheduled to merge this as part of the current development cycle.

[pkleef]

@jakubklimek As promised i merged a number of fct related patches into develop/7 tree so i invite you to have a look when you have a moment.

[jakubklimek]

@pkleef Regarding IRIs after upgrade to fct 1.16.99 it seems that there was no improvement. See https://slovník.gov.cz/legislativní/sbírka/424/1991/pojem/politická-strana

The IRI of the class is still mangled, the data space URL does not support Punycode and then there is the new issue #787 .