I, too, am struggling with external (and internal) references.
I have created (and sent to Hans) a MWE that seems to identify two bugs:
1) External references: in a single product, some of these work, and
*some* do not render the numbers (using \in{} [ref], for example). They
are, however, identified as known or "verified".
2) Internal references: all render but *some* get "missing link target"
errors (in the PDF viewer).
I have not been able to get anywhere with the (lua) code, myself.
Alan
On Sun, 29 Jan 2023 19:03:32 +0300
Yaroslav Beltukov via ntg-context <ntg-context@ntg.nl> wrote:
> Dear Hans and all contributors,
>
> I really appreciate ConTeXt for the right way to obtain high quality
> documents. I'm a theoretical physicist and I'm going to write a book.
> I think ConTeXt is the right choice to work with a number of formulas,
> figures and cross-references. The visual quality of formulas is
> better than in regular LaTeX. The new feature with formula
> autosplitting looks also very promising. For me it is important to
> obtain the high quality without a lot of manual tweaks of each
> formula for each given document format and figure placement.
>
> However, I have found a problem with references if I compile one
> component only. The references to formulas in other components have
> wrong prefixes, e.g. (2.1) instead of (3.1). Needless to say, the
> right formula references are very important.
>
> I started looking into this issue. The references to other components
> are taken from the whole product as from an external document. It
> turned out that this is a general problem with references with
> prefixes to external documents. The prefix is stored in a tuc file as
> a reference to a section as a sequential number of the header in the
> document. As a result, the prefix from the external document is
> calculated using the structure of the current document.
>
> Here is the MWE, which consists of two files:
> foo.tex:
>
> \defineenumeration[remark][prefix=yes, prefixsegments=chapter:section]
>
> \starttext
>
> Equations: \in[eq1], \in[eq2], \in[eq3], \in[eq4]
>
> Sections: \in[sec1], \in[sec2], \in[sec3], \in[sec4]
>
> Chapters: \in[chap1], \in[chap2], \in[chap3], \in[chap4]
>
> Remarks: \in[remark1], \in[remark2]
>
> \startbodymatter
>
> \chapter[chap1]{Chapter}
> \placeformula[eq1]\startformula x = y\stopformula
> \chapter[chap2]{Chapter}
> \section[sec1]{Section}
> \section[sec2]{Section}
> \placeformula[eq1]\startformula x = y\stopformula
> \placeformula[eq2]\startformula x = y\stopformula
>
> \stopbodymatter
>
> \startappendices
>
> \chapter[chap3]{Chapter}
> \section[sec3]{Section}
> \placeformula[eq3]\startformula x = y\stopformula
> \section[sec4]{Section}
> \startremark[remark1]\stopremark
> \placeformula[eq4]\startformula x = y\stopformula
> \startremark[remark2]\stopremark
> \chapter[chap4]{Chapter}
>
> \stopappendices
>
> \stoptext
>
>
> bar.tex:
>
> \starttext
>
> Equations: \in[foo::eq1], \in[foo::eq2], \in[foo::eq3], \in[foo::eq4]
>
> Sections: \in[foo::sec1], \in[foo::sec2], \in[foo::sec3],
> \in[foo::sec4]
>
> Chapters: \in[foo::chap1], \in[foo::chap2], \in[foo::chap3],
> \in[foo::chap4]
>
> Remarks: \in[foo::remark1], \in[foo::remark2]
>
> % any chapters and sections here
>
> \stoptext
>
> It is expected to have the same first page on these documents:
>
> Equations: 1.1, 2.2, A.1, A.2
> Sections: 2.1, 2.2, A.1, A.2
> Chapters: 1, 2, A, B
> Remarks: A.2.1, A.2.2
>
> However, the bar.tex produces wrong prefixes to formulas and remarks.
> The output depends on the document structure of bar.tex, not foo.tex.
>
> I started looking into the source code. Thanks to lua, it is not a
> big deal to track the problem. The prefixdata is complemented by the
> sectiondata after the loading the tuc file. So, the question is: is
> it possible to store the full prefixdata with all necessary prefix
> numbers in the tuc file? Here is my proposal to change the source
> code:
>
> --- strc-lst-old.lmt 2023-01-29 11:30:15.610309948 +0300
> +++ strc-lst.lmt 2023-01-29 12:10:08.864228923 +0300
> @@ -266,6 +266,16 @@
> if r and not r.section then
> r.section = structures.sections.currentid()
> end
> + -- store sectiondata in prefixdata (necessary for external files)
> + if t.prefixdata and r.section then
> + local sectiondata = structures.sections.collected[r.section]
> + if sectiondata then
> + for k, v in next, sectiondata do
> + t.prefixdata[k] = v
> + end
> + end
> + end
> + --
> local b = r and t.block
> if r and not b then
> local s = r.section
>
> --- strc-ref-old.lmt 2023-01-29 11:30:15.823643904 +0300
> +++ strc-ref.lmt 2023-01-29 12:07:45.697109862 +0300
> @@ -2318,7 +2318,17 @@
> if data then
> numberdata = lists.reordered(data) -- data.numberdata
> if numberdata then
> - helpers.prefix(data,prefixspec)
> + -- helpers.prefix(data,prefixspec)
> + -- use the actual numbers from prefixdata
> + local prefixdata = data.prefixdata
> + if prefixdata then
> + -- adapted from helpers.prefix (not sure)
> + if (prefixspec and prefixspec == no) or
> prefixdata.prefix == no then
> + prefixdata = false
> + end
> + sections.typesetnumber(prefixdata,"prefix",
> prefixspec or false, prefixdata)
> + end
> + --
>
> sections.typesetnumber(numberdata,"number",numberspec,numberdata)
> else
> local useddata = data.useddata
>
> After this small change, all the references are correct. However, I'm
> quite new to ConTeXt, so maybe here are some caveats. It would be
> great to fix the references to formulas, especially for the
> forthcoming document about maths.
>
> Best regards,
> Yaroslav Beltukov
--
Alan Braslau
816 West Mountain Avenue
Fort Collins, CO 80521 USA
mobile: (970) 237-0957
Conserve energy! ;-)
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