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Sanjoy Mahajan

10 Jul 2019 10 Jul '19

2:15 a.m.

Dear List, Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. MNWE: \starttext \section[sec:one(two)]{One} As you see in sec.~\in[sec:one(two)], \stoptext The "in sec.~\in[sec:one(two)]" typesets as "in sec. ??" and the log shows: references > start missing references references > 1 [][sec:one(two)] references > stop missing references (It all works fine upon deleting "(two)" throughout.) Is this behavior known and expected? If it is, I'll add a note to the "References" page on the wiki. -Sanjoy

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Peter Rolf

10 Jul 10 Jul

11:04 a.m.

Hi Sanjoy, I think it's just the 'normal' limitations you have when setting a variable/id name. Special characters, like parenthesis, are not allowed here. Even whitespace can be problematic. Yesterday I had a problem with a reference (data driven) that has a trailing space (obviously a typo). This space was 'eaten' by TeX, resulting in a broken link. Embracing the argument helped here, but I haven't tested what happens, if you use multiple spaces in a row... Greetings, Peter Am 10.07.2019 um 04:15 schrieb Sanjoy Mahajan:

Dear List,

Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. MNWE:

\starttext \section[sec:one(two)]{One}

As you see in sec.~\in[sec:one(two)],

\stoptext

The "in sec.~\in[sec:one(two)]" typesets as "in sec. ??" and the log shows:

references > start missing references

references > 1 [][sec:one(two)]

references > stop missing references

(It all works fine upon deleting "(two)" throughout.)

Is this behavior known and expected? If it is, I'll add a note to the "References" page on the wiki.

-Sanjoy ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

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Sanjoy Mahajan

11:36 a.m.

New subject: [DKIM Failure] Re: reference containing parentheses causes trouble

On 2019-07-10 13:04, Peter Rolf wrote:

Hi Sanjoy,

I think it's just the 'normal' limitations you have when setting a variable/id name. Special characters, like parenthesis, are not allowed here.

Peter, I think that's right, but there are small differences. For example, variables in most languages don't allow hyphens, because they are interpreted as minus signs. But ConTeXt references do allow them (and I use them all the time). That may be why I expected free reign to use any characters in the reference (except, as you say, for whitespace!) and wrote my script accordingly to turn problem titles into references (by replacing whitespace with a hyphen). -Sanjoy

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Peter Rolf

12:28 p.m.

New subject: [DKIM Failure] Re: reference containing parentheses causes trouble

Am 10.07.2019 um 13:36 schrieb Sanjoy Mahajan:

On 2019-07-10 13:04, Peter Rolf wrote:

...
Hi Sanjoy,

I think it's just the 'normal' limitations you have when setting a variable/id name. Special characters, like parenthesis, are not allowed here.

Peter,

I think that's right, but there are small differences. For example, variables in most languages don't allow hyphens, because they are interpreted as minus signs. But ConTeXt references do allow them (and I use them all the time). That may be why I expected free reign to use any characters in the reference (except, as you say, for whitespace!) and wrote my script accordingly to turn problem titles into references (by replacing whitespace with a hyphen).

I agree (I always use the underscore instead of space). In general it's best to avoid problems if you can. If you use messy third party data as reference things are totally different. In my current project I have one dead link out of 1275 (also caused by parenthesis). Not enough to make me write some extra code to deal with it. Peter

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Hans Hagen

11:39 a.m.

On 7/10/2019 1:04 PM, Peter Rolf wrote:

Hi Sanjoy,

I think it's just the 'normal' limitations you have when setting a variable/id name. Special characters, like parenthesis, are not allowed here.

Even whitespace can be problematic. Yesterday I had a problem with a reference (data driven) that has a trailing space (obviously a typo). This space was 'eaten' by TeX, resulting in a broken link. Embracing the argument helped here, but I haven't tested what happens, if you use multiple spaces in a row... indeed, references are actually a little language in their own (always have been)

\enabletrackers[structures.referencing.analyzing] ----------------------------------------------------------------- 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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Wolfgang Schuster

7:29 p.m.

Sanjoy Mahajan schrieb am 10.07.2019 um 04:15:

Dear List,

Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. Braces are used for the argument of reference actions.

\setupinteraction[state=start] \starttext \goto{Second page}[page(2)] \page \goto{ConTeXt garden}[url(http://wiki.contextgarden.net)] \stoptext Wolfgang

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Peter Rolf

11 Jul 11 Jul

9:03 a.m.

Am 10.07.2019 um 21:29 schrieb Wolfgang Schuster:

Sanjoy Mahajan schrieb am 10.07.2019 um 04:15:

...
Dear List,

Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. Braces are used for the argument of reference actions.

\setupinteraction[state=start]

\starttext

\goto{Second page}[page(2)]

\page

\goto{ConTeXt garden}[url(http://wiki.contextgarden.net)]

\stoptext

Wolfgang

I see. Thanks for clearifying. Peter

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Otared Kavian

12:56 p.m.

Actually in the context of references, not only parentheses as Wolfgang pointed out, but also some words are reserved, such as nextpage and previous page: \setupinteraction[state=start] \starttext \goto{Second page}[page(2)] \goto{Go to next page}[nextpage] \page \goto{ConTeXt garden}[url(http://wiki.contextgarden.net)] \goto{Go to previous page}[previouspage] \stoptext Best regards: OK

On 11 Jul 2019, at 11:03, Peter Rolf wrote:

Am 10.07.2019 um 21:29 schrieb Wolfgang Schuster:

...
Sanjoy Mahajan schrieb am 10.07.2019 um 04:15:

...
Dear List,

Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. Braces are used for the argument of reference actions.

\setupinteraction[state=start]

\starttext

\goto{Second page}[page(2)]

\page

\goto{ConTeXt garden}[url(http://wiki.contextgarden.net)]

\stoptext

Wolfgang

I see. Thanks for clearifying.

Peter ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

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Alan Braslau

3:27 p.m.

This is why it is always a good idea to preface references with a (personal) identifier. However, perhaps Hans, Wolfgang, or someone else can explain the use of colons (:) and double colons (::) in references and in other tags in general (they have to do with namespaces, instances, etc.). Alan On Thu, 11 Jul 2019 14:56:02 +0200 Otared Kavian wrote:

Actually in the context of references, not only parentheses as Wolfgang pointed out, but also some words are reserved, such as nextpage and previous page:

\setupinteraction[state=start]

\starttext

\goto{Second page}[page(2)]

\goto{Go to next page}[nextpage]

\page

\goto{ConTeXt garden}[url(http://wiki.contextgarden.net)]

\goto{Go to previous page}[previouspage]

\stoptext

Best regards: OK

...
On 11 Jul 2019, at 11:03, Peter Rolf wrote:

Am 10.07.2019 um 21:29 schrieb Wolfgang Schuster:

...
Sanjoy Mahajan schrieb am 10.07.2019 um 04:15:

...
Dear List,

Warning: The following may be a bug or feature or just my misunderstanding! It seems that parentheses cause trouble in references. Braces are used for the argument of reference actions.

\setupinteraction[state=start]

\starttext

\goto{Second page}[page(2)]

\page

\goto{ConTeXt garden}[url(http://wiki.contextgarden.net)]

\stoptext

Wolfgang

I see. Thanks for clearifying.

Peter ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

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Hans Hagen

12 Jul 12 Jul

11:31 a.m.

On 7/11/2019 5:27 PM, Alan Braslau wrote:

This is why it is always a good idea to preface references with a (personal) identifier. However, perhaps Hans, Wolfgang, or someone else can explain the use of colons (:) and double colons (::) in references and in other tags in general (they have to do with namespaces, instances, etc.). grep for :::

mag-1103-mkiv.tex ----------------------------------------------------------------- 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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participants (6)

Alan Braslau
Hans Hagen
Otared Kavian
Peter Rolf
Sanjoy Mahajan
Wolfgang Schuster