My assumption was that we are looking at character data on the abstract
layer /after/ parsing XML. You shouldn't see entities there (they'd be
resolved to their respective characters), nor should you see <![CDATA[]]
wrappers.
On 18-12-2019 15:22, Andrew Nenakhov wrote:
We're totally onboard with this XEP, and it is, in fact, the way we
already do count characters for references in all versions of Xabber.
However, there is one important case not addressed in this XEP: XML
predefined entities.
Symbols that are to be escaped, as listed in
https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
are:
& -- &
< -- <
> -- >
" -- "
' - '
Counting symbols will result in different outcomes if we count
characters before or after unescaping (from experience, without
explicit mention of this problemour developers have spilt exactly
50/50 on this: 2 developers did count before unsecaping and 2 - after)
In the end we have settled for counting characters of escaped string,
so to draw *&&&* in a client we count it as string with a length of
15, thus <bold> reference points to characters 0..14:
<reference xmlns="urn:xmpp:reference:0" begin="0" end="14"
type="markup"><bold /></reference>
вт, 17 дек. 2019 г. в 16:19, <[email protected] <mailto:[email protected]>>:
The XMPP Extensions Editor has received a proposal for a new XEP.
Title: Character counting in message bodies
Abstract:
This document describes how to correctly count characters in message
bodies. This is required when referencing a position in the body.
URL: https://xmpp.org/extensions/inbox/charcount.html
The Council will decide in the next two weeks whether to accept this
proposal as an official XEP.
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Andrew Nenakhov
CEO, redsolution, OÜ
https://redsolution.com <http://www.redsolution.com>
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ralphm
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