Index sort should disregard capitalization

[ietf-svn-bot]

owner:kesara@staff.ietf.org resolution_fixed type_defect | by mahoney@nostrum.com

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Entries in the index should be sorted alphabetically without regard for capitalization. Please see the linked file.

Current output:

  A
     Accept header field  Section 12.5.1
     Accept-Charset header field  Section 12.5.2
     Accept-Encoding header field  Section 12.5.3
     Accept-Language header field  Section 12.5.4
     Accept-Ranges header field  Section 14.3
     Allow header field  Section 10.2.1
     Authentication-Info header field  Section 11.6.3
     Authorization header field  Section 11.6.2
     accelerator  Section 3.7, Paragraph 6
     authoritative response  Section 17.1

Desired output:

  A
     accelerator  Section 3.7, Paragraph 6
     Accept header field  Section 12.5.1
     Accept-Charset header field  Section 12.5.2
     Accept-Encoding header field  Section 12.5.3
     Accept-Language header field  Section 12.5.4
     Accept-Ranges header field  Section 14.3
     Allow header field  Section 10.2.1
     Authentication-Info header field  Section 11.6.3
     Authorization header field  Section 11.6.2
     authoritative response  Section 17.1

https://www.rfc-editor.org/v3test/draft-ietf-httpbis-semantics-19.html
https://www.rfc-editor.org/v3test/draft-ietf-httpbis-semantics-19.xml

This issue was in v2 a while back. See https://trac.ietf.org/trac/xml2rfc/ticket/255

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Issue migrated from trac:680 at 2022-02-08 07:17:48 +0000

[ietf-svn-bot]

@mahoney@nostrum.com commented

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Huh, according to https://xml2rfc.tools.ietf.org/xml2rfc-doc.html#name-iref-2, it's supposed to be case sensitive?

Please look at the subitems under the "Grammar" entry (capitalized entries span two pages in the PDF, and lowercase entries are on the next two pages):
https://www.rfc-editor.org/v3test/draft-ietf-httpbis-semantics-19.pdf
https://www.rfc-editor.org/v3test/draft-ietf-httpbis-semantics-19.html#rfc.index.u71

[ietf-svn-bot]

@johnl@taugh.com commented

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I believe it says case-sensitive, but that is clearly wrong. Nobody wants a case-sensitive index.

Note for the future: case folding ASCII is easy, but case folding Unicode correctly is close to impossible since the folding and even alphabetic order rules are language specific. Unicode UTR#30 provides some rules that are close enough.

[ietf-svn-bot]

@johnl@taugh.com commented

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I checked with the author of 7991 and the intention was that the index entries be displayed in their original case. Nobody thinks it is useful to sort all the A's before the a's.

So we should fix it.

[ietf-svn-bot]

@kesara@staff.ietf.org changed status from new to assigned

[ietf-svn-bot]

@kesara@staff.ietf.org set owner to kesara@staff.ietf.org

[ietf-svn-bot]

@kesara@staff.ietf.org changed status from assigned to closed

[ietf-svn-bot]

@kesara@staff.ietf.org set resolution to fixed

[ietf-svn-bot]

@kesara@staff.ietf.org commented

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Fixed in a894852:

Fixes a bug where the index is case sensitive. Fixes #680. Commit ready for merge.

[ajeanmahoney]

This issue is still seen in RFC 9110 (was draft-ietf-httpbis-semantics-19):

https://www.rfc-editor.org/v3test/rfc9110.html
https://www.rfc-editor.org/v3test/rfc9110.xml

[kesara]

Looks like the fix (a894852) hasn't been merged into the main branch.