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 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! ;-)

Dear Hans, Thank you for the nice and straightforward solution. I have tested it locally and it works. I hope it will be in the next release (should I do anything?). By the way, I have a couple of other small issues. I will describe them in detail in other threads of this mailing list if it is the right place to do so. Best regards, Yaroslav пн, 30 янв. 2023 г. в 12:52, Hans Hagen via ntg-context

:

...

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.

On 1/29/2023 5:03 PM, Yaroslav Beltukov via ntg-context wrote: that will bloat the already large tuc file, so here is an alternative (i bet you can find where to patch):

strc-ref

local external = struc.references.collected -- direct references local lists = struc.lists.collected -- indirect references (derived) local pages = struc.pages.collected -- pagenumber data local sections = struc.sections.collected

and

if prefix == "" then prefix = name -- this can clash! end local section = references.section if section then if sections then references.sectiondata = sections[section] else -- warning end end

strc-pag:

local sectiondata = references.sectiondata or sections.collected[references.section] if not sectiondata then return entry, false, "no section data" end

there might be a few more such places where we can bind to the loaded data

Hans

----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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