Reference to a subitem

Diego Depaoli

22 Oct 2008 22 Oct '08

4:55 p.m.

Hi all, referencing a subitem I get also the item (1.a, 2.c and so on). Can I split them or get only the subitem? \starttext \startitemize [n] \item [number] one \startitemize [a] \item [letter] letter \stopitemize \stopitemize Look at number \in[number] letter \in[letter] \stoptext Normal output: Look at number 1 letter 1.a Wanted result Look at number 1 letter a Many thanks -- Diego Depaoli

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Wolfgang Schuster

23 Oct 23 Oct

1:22 a.m.

On Thu, Oct 23, 2008 at 12:55 AM, Diego Depaoli wrote:

...

Hi all, referencing a subitem I get also the item (1.a, 2.c and so on). Can I split them or get only the subitem?

\starttext \startitemize [n] \item [number] one \startitemize [a] \item [letter] letter \stopitemize \stopitemize Look at number \in[number] letter \in[letter] \stoptext

Normal output: Look at number 1 letter 1.a

Wanted result Look at number 1 letter a

\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax} \def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}} \definereferenceformat[initem][left=\ItemNumber] \starttext \startitemize[n] \item[number] one \startitemize [a] \item[letter] letter \stopitemize \stopitemize Look at \initem{number}[number] \initem{letter}[letter] \stoptext Regards, Wolfgang

Diego Depaoli

3:58 a.m.

2008/10/23 Wolfgang Schuster :

...

...
Wanted result Look at number 1 letter a

\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax} As usual, Wolfgang solved!

Mojca, can I have a Context t-shirt customized 'Wolfgang's fan club'? -- Diego Depaoli

Diego Depaoli

24 Oct 24 Oct

6:58 p.m.

2008/10/23 Wolfgang Schuster :

...

\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax}

\def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}}

\definereferenceformat[initem][left=\ItemNumber]

Since I don't speak that language, someone could explain why this code doesn't work when I put a stopper in subitemization? The standard dot isn't a stopper itself? Cheers -- Diego Depaoli

Marcin Borkowski

25 Oct 25 Oct

1:07 a.m.

Dnia Sat, Oct 25, 2008 at 02:58:24AM +0200, Diego Depaoli napisał(a):

...

2008/10/23 Wolfgang Schuster :

...
\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax}

\def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}}

\definereferenceformat[initem][left=\ItemNumber]

Since I don't speak that language, someone could explain why this code doesn't work when I put a stopper in subitemization? The standard dot isn't a stopper itself?

This code seems to work (approximately) like this: it expands the "full" reference, which is: <number> <dot> <number> <dot> and selects "everything from the first dot up to the second one (w/o the dots themselves). So I consider it to be a bit dirty hack (sorry, Wolfgang;)), in a sense that it is not very flexible. If your stopper is, say ")" (and the second one, say, "]", so you have references in a strange form like "1)2]"), you might want to say something like \def\doItemNumber #1)#2]#3\relax (the space after \doItemNumber is gobbled by TeX, so it might be present here or not, it is a matter of taste only). If you have different stoppers, another approach might be reasonable. I can see two possibilities: 1. Get to know _where_ ConTeXt really keeps the relevant info about labels; if the info about the values (w/o stoppers) is preserved, we are saved, if not, we've got a problem; 2. so in the latter case we have to (?) use this kind of hacky solution, which might be something like this (assuming that \stopper and \stopperr are the first- and second level stoppers respectively): \edef\sometemporarymacroname{% \def\noexpand\doItemNumber ##1\stopper ##2\stopperr ##3\relax {\noexpand\doifelsenothing{##2} {##1} {##2}}% }% \sometemporarymacroname (I'm not sure whether the last percentage sign is needed, but a good rule of thumb is to put them everywhere after <closing brace> <newline>, so that the newlines don't get translated into spaces.) I'm not sure whether this works, though, *please* check it and tell me (maybe I'm doing some stupid error, please the TeX gurus correct me if yes). I hope this is ok, though, because then it my first post to this list containing actually an _answer_ and not a _question_:))).

...

Cheers -- Diego Depaoli

Greets -- Marcin Borkowski (http://mbork.pl) Kim jest ta, co wyłania się z pustyni, Idzie wsparta na swoim Oblubieńcu?

Wolfgang Schuster

27 Oct 27 Oct

3:56 a.m.

2008/10/25 Marcin Borkowski :

...

Dnia Sat, Oct 25, 2008 at 02:58:24AM +0200, Diego Depaoli napisał(a):

...
2008/10/23 Wolfgang Schuster :

...
\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax}

\def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}}

\definereferenceformat[initem][left=\ItemNumber]

Since I don't speak that language, someone could explain why this code doesn't work when I put a stopper in subitemization? The standard dot isn't a stopper itself?

This code seems to work (approximately) like this: it expands the "full" reference, which is: <number> <dot> <number> <dot> and selects "everything from the first dot up to the second one (w/o the dots themselves). So I consider it to be a bit dirty hack (sorry, Wolfgang;)), in a sense that it is not very flexible.

It's just hack at user level, a dirty hack would redefine core macros but this is what I try to avoid.

...

If your stopper is, say ")" (and the second one, say, "]", so you have references in a strange form like "1)2]"), you might want to say something like \def\doItemNumber #1)#2]#3\relax (the space after \doItemNumber is gobbled by TeX, so it might be present here or not, it is a matter of taste only). If you have different stoppers, another approach might be reasonable. I can see two possibilities: 1. Get to know _where_ ConTeXt really keeps the relevant info about labels; if the info about the values (w/o stoppers) is preserved, we are saved, if not, we've got a problem; 2. so in the latter case we have to (?) use this kind of hacky solution, which might be something like this (assuming that \stopper and \stopperr are the first- and second level stoppers respectively):

\edef\sometemporarymacroname{% \def\noexpand\doItemNumber ##1\stopper ##2\stopperr ##3\relax {\noexpand\doifelsenothing{##2} {##1} {##2}}% }% \sometemporarymacroname

(I'm not sure whether the last percentage sign is needed, but a good rule of thumb is to put them everywhere after <closing brace> <newline>, so that the newlines don't get translated into spaces.)

You don't need the comment sign at the end of the macro in outer level but you need it for local definitons in other macros if your're in horizontal mode.

...

I'm not sure whether this works, though, *please* check it and tell me (maybe I'm doing some stupid error, please the TeX gurus correct me if yes). I hope this is ok, though, because then it my first post to this list containing actually an _answer_ and not a _question_:))).

Thanks to explain my solution. Wolfgang

Marcin Borkowski

6:30 p.m.

Dnia Mon, Oct 27, 2008 at 10:56:32AM +0100, Wolfgang Schuster napisał(a):

...

2008/10/25 Marcin Borkowski :

...
Dnia Sat, Oct 25, 2008 at 02:58:24AM +0200, Diego Depaoli napisał(a):

...
2008/10/23 Wolfgang Schuster :

...
\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax}

\def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}}

\definereferenceformat[initem][left=\ItemNumber]

Since I don't speak that language, someone could explain why this code doesn't work when I put a stopper in subitemization? The standard dot isn't a stopper itself?

This code seems to work (approximately) like this: it expands the "full" reference, which is: <number> <dot> <number> <dot> and selects "everything from the first dot up to the second one (w/o the dots themselves). So I consider it to be a bit dirty hack (sorry, Wolfgang;)), in a sense that it is not very flexible.

It's just hack at user level, a dirty hack would redefine core macros but this is what I try to avoid.

OK, sorry - probably we have different semantics of "dirty" (or, more probably, we're talking about different "levels" of dirtiness). Here I meant roughly that this hack is not very flexible.

...

...
If your stopper is, say ")" (and the second one, say, "]", so you have references in a strange form like "1)2]"), you might want to say something like \def\doItemNumber #1)#2]#3\relax (the space after \doItemNumber is gobbled by TeX, so it might be present here or not, it is a matter of taste only). If you have different stoppers, another approach might be reasonable. I can see two possibilities: 1. Get to know _where_ ConTeXt really keeps the relevant info about labels; if the info about the values (w/o stoppers) is preserved, we are saved, if not, we've got a problem; 2. so in the latter case we have to (?) use this kind of hacky solution, which might be something like this (assuming that \stopper and \stopperr are the first- and second level stoppers respectively):

\edef\sometemporarymacroname{% \def\noexpand\doItemNumber ##1\stopper ##2\stopperr ##3\relax {\noexpand\doifelsenothing{##2} {##1} {##2}}% }% \sometemporarymacroname

(I'm not sure whether the last percentage sign is needed, but a good rule of thumb is to put them everywhere after <closing brace> <newline>, so that the newlines don't get translated into spaces.)

You don't need the comment sign at the end of the macro in outer level but you need it for local definitons in other macros if your're in horizontal mode.

Shame on me, being a mathematician and being sooo imprecise:):)

...

...
I'm not sure whether this works, though, *please* check it and tell me (maybe I'm doing some stupid error, please the TeX gurus correct me if yes). I hope this is ok, though, because then it my first post to this list containing actually an _answer_ and not a _question_:))).

Thanks to explain my solution.

You're welcome:).

...

Wolfgang

Greets -- Marcin Borkowski (http://mbork.pl) Jeść. Pić. Spać. Wstać. Kupić. Sprzedać. Mieć. Możesz więcej chcieć - czegoś więcej! (40i30na70)

Diego Depaoli

10:24 a.m.

2008/10/25 Marcin Borkowski :

...

Dnia Sat, Oct 25, 2008 at 02:58:24AM +0200, Diego Depaoli napisał(a): This code seems to work (approximately) like this: it expands the "full" reference, which is: <number> <dot> <number> <dot> and selects "everything from the first dot up to the second one (w/o the dots themselves). So I consider it to be a bit dirty hack (sorry, Wolfgang;)), in a sense that it is not very flexible. Thanks for clarification, here I begin to understand

...

If your stopper is, say ")" (and the second one, say, "]", so you have references in a strange form like "1)2]"), you might want to say something like \def\doItemNumber #1)#2]#3\relax mmmm... I tried before posting... doesn't work

...

\edef\sometemporarymacroname{% \def\noexpand\doItemNumber ##1\stopper ##2\stopperr ##3\relax {\noexpand\doifelsenothing{##2} {##1} {##2}}% }% \sometemporarymacroname Here I stop understand and I can't get this code working. Could you give me a full example?

...

I'm not sure whether this works, though, *please* check it and tell me (maybe I'm doing some stupid error, please the TeX gurus correct me if yes). I hope this is ok, though, because then it my first post to this list containing actually an _answer_ and not a _question_:))). This time will never come for me.

Cheers -- Diego Depaoli

Diego Depaoli

10:30 a.m.

Another curiosity... why have such kind of reference since we get more flexibility with \in[item]\in[subitem]? -- Diego Depaoli

Marcin Borkowski

6:34 p.m.

Dnia Mon, Oct 27, 2008 at 05:24:56PM +0100, Diego Depaoli napisał(a):

...

2008/10/25 Marcin Borkowski :

...
Dnia Sat, Oct 25, 2008 at 02:58:24AM +0200, Diego Depaoli napisał(a): This code seems to work (approximately) like this: it expands the "full" reference, which is: <number> <dot> <number> <dot> and selects "everything from the first dot up to the second one (w/o the dots themselves). So I consider it to be a bit dirty hack (sorry, Wolfgang;)), in a sense that it is not very flexible. Thanks for clarification, here I begin to understand

...
If your stopper is, say ")" (and the second one, say, "]", so you have references in a strange form like "1)2]"), you might want to say something like \def\doItemNumber #1)#2]#3\relax mmmm... I tried before posting... doesn't work

Could you please send me a minimal example?

...

...
\edef\sometemporarymacroname{% \def\noexpand\doItemNumber ##1\stopper ##2\stopperr ##3\relax {\noexpand\doifelsenothing{##2} {##1} {##2}}% }% \sometemporarymacroname Here I stop understand and I can't get this code working. Could you give me a full example?

As above; send me a file, I'll try to do something. Still, I'm not really sure this would work, it was only a rough idea. I'll explain it later (it's 1:30 AM here in Poland;)).

...

...
I'm not sure whether this works, though, *please* check it and tell me (maybe I'm doing some stupid error, please the TeX gurus correct me if yes). I hope this is ok, though, because then it my first post to this list containing actually an _answer_ and not a _question_:))). This time will never come for me.

If you follow the path of TeX, your expertise will gradually rise;). You'll never notice, though, until people start coming to you asking questions, and will be baffled by your expert-like, impossible-to-understand-and-technical answers;).

...

Cheers -- Diego Depaoli

Greets -- Marcin Borkowski (http://mbork.pl) - Gandalf! A ja myślałem, że nie żyjesz. Co prawda o sobie też byłem tego zdania. Sam Gamgee

Hans Hagen

25 Oct 25 Oct

2:43 a.m.

Diego Depaoli wrote:

...

2008/10/23 Wolfgang Schuster :

...
\def\ItemNumber#1% {\expandafter\doItemNumber#1..\relax}

\def\doItemNumber#1.#2.#3\relax {\doifelsenothing{#2} {#1} {#2}}

\definereferenceformat[initem][left=\ItemNumber] Since I don't speak that language, someone could explain why this code doesn't work when I put a stopper in subitemization? The standard dot isn't a stopper itself?

in mkiv this will be done differently, more control over each bit and piece Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Diego Depaoli
Hans Hagen
Marcin Borkowski
Wolfgang Schuster