[NTG-context] XML, multiple spaces encoded as %20 get merged into one space

[NTG-context] XML, multiple spaces encoded as %20 get merged into one space

[denis.maier]

[-- Attachment #1.1: Type: text/plain, Size: 2428 bytes --]

Hi,

I have the example below that uses the three images in the attachment.
For some reason multiple spaces encoded as %20 get merged into a single %20.

The first image (<test  two20spaces.pdf>) does not get included even though the name is correct.
The second image (<test one space.pdf>) gets included. Filename is correct.
The third image (<test not two space.pdf>) gets included even though the actual file name does not contain two spaces (but @xlink:href does).

Any ideas what is going on here?

Then, in the case of the link, the two %20 end up as a single %20.

Best,
Denis

\setupinteraction[state=start]

\startxmlsetups xml:test
                \xmlsetsetup{#1}{*}{-}
                \xmlsetsetup{#1}{document|fig}{xml:*}
\stopxmlsetups

\xmlregisterdocumentsetup{test}{xml:test}

\startxmlsetups xml:document
  \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:fig
  \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:graphic
  \externalfigure[\xmlfilter{#1}{./url('xlink:href')}]
\stopxmlsetups

\startxmlsetups xml:link
  https://uv-v4.netlify.app/\#?manifest=\xmlfilter{#1}{./url('xlink:href')}
\stopxmlsetups

\startxmlsetups xml:fig
                \startplacefigure[title=Test]
                \startalignment[center]
                               \goto
                               {\xmlfilter{#1}{/graphic/command(xml:graphic)}}
                               [url(\xmlfilter{#1}{/link/command(xml:link)})]
                \stopalignment
                \stopplacefigure

                \goto{test}[url(\xmlfilter{#1}{/link/command(xml:link)})]
\stopxmlsetups


\startbuffer[test]
<?xml version="1.0" encoding="UTF-8"?>
<document>

<fig>
<graphic xlink:href="test%20%20two%20spaces.pdf"/>
<link xlink:href="https://iiif.ub.unibe.ch/presentation/v2.1/berner-inkunabeln/manifest/Inc%20IV%2076%20%20Spiegel%20vorn_Teigstempel"/>
</fig>

<fig>
<graphic xlink:href="test%20one%20space.pdf"/>
<link xlink:href="https://iiif.ub.unibe.ch/presentation/v2.1/berner-inkunabeln/manifest/Inc%20IV%2076%20%20Spiegel%20vorn_Teigstempel"/>
</fig>

<fig>
<graphic xlink:href="test%20%20not%20two%20spaces.pdf"/>
<link xlink:href="https://iiif.ub.unibe.ch/presentation/v2.1/berner-inkunabeln/manifest/Inc%20IV%2076%20%20Spiegel%20vorn_Teigstempel"/>
</fig>
</document>
\stopbuffer


\starttext

\xmlprocessbuffer{test}{test}{}

\stoptext


[-- Attachment #1.2: Type: text/html, Size: 8445 bytes --]

[-- Attachment #2: test  two spaces.pdf --]
[-- Type: application/pdf, Size: 4301 bytes --]

[-- Attachment #3: test one space.pdf --]
[-- Type: application/pdf, Size: 4301 bytes --]

[-- Attachment #4: test not two spaces.pdf --]
[-- Type: application/pdf, Size: 4301 bytes --]

[-- Attachment #5: Type: text/plain, Size: 495 bytes --]

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

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

[NTG-context] Re: XML, multiple spaces encoded as %20 get merged into one space

[Pablo Rodriguez]

On 9/6/23 12:28, denis.maier@unibe.ch wrote:
> Hi,
>
> I have the example below that uses the three images in the attachment.
> For some reason multiple spaces encoded as %20 get merged into a single %20.

Hi Denis,

this is standard TeX behavior (not only related to XML):

  \starttext
  \externalfigure[test  two spaces.pdf]
  \externalfigure[test  not two spaces.pdf]
  \stoptext

I don‘t know whether this is intended or not.

That being said, more than one consecutive space in a file name (I would
say it) is rather an exception than the rule.

Fixing this may cause more trouble that it might seem at first.

Best,

Pablo


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

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

[NTG-context] Re: XML, multiple spaces encoded as %20 get merged into one space

[Hans Hagen via ntg-context]

On 9/6/2023 4:59 PM, Pablo Rodriguez wrote:
> On 9/6/23 12:28, denis.maier@unibe.ch wrote:
>> Hi,
>>
>> I have the example below that uses the three images in the attachment.
>> For some reason multiple spaces encoded as %20 get merged into a single %20.
> 
> Hi Denis,
> 
> this is standard TeX behavior (not only related to XML):
> 
>    \starttext
>    \externalfigure[test  two spaces.pdf]
>    \externalfigure[test  not two spaces.pdf]
>    \stoptext
> 
> I don‘t know whether this is intended or not.
> 
> That being said, more than one consecutive space in a file name (I would
> say it) is rather an exception than the rule.
> 
> Fixing this may cause more trouble that it might seem at first.
The problem with escaping is that there can be several round trips and 
it's kind of hard to predict usage and such. Also, take this:

<graphic xlink:href='test%20%20n$ot%20t\wo%20s{p}a#ces.p"df'/>

Then, as i don't have these graphics, the test failed after a catch on 
the fact that tex didn't like the string for rendering in the 'unknown 
figure' drop in and after another catch the { } were not shown ...

Anyway, with a little magic i can now at least make this work but it 
needs testing with existing documents because it's not like we can 
update the xml stuff every thiem we have yet another exception (ok, 
those using sane image names are probably okay).

So, in a next update you can test some,

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
-----------------------------------------------------------------

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

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