Xml - Lua - context

Xml - Lua - context

[Thomas A. Schmitz via ntg-context]

And here comes question 2, a very basic one: on A4 landscape pages, I want to place two images next to each other (like the spread pages of a book). What would be the preferred way of the really competent users to do this, again keeping in mind that I want to loop over page numbers in a pdf file and thus am coding in Lua. So far, I have tried or thought about:

1. Embedded xtable

This is what I’m using now, an xtable of two columns for every A4 page. It works, but I wonder if it’s a good method.

2. combinations

This appeared to be the most natural approach (because it’s what combinations are for), but I ran into expansion problems, added a few “function () end” in my code, but couldn’t make it compile. Combinations, combined with framed and externalfigure, are difficult to write in Lua - or am I too stupid to find the winning combination (sorry for the puns).

3. columns

Again, this would seen like a natural approach, having every A4 page set up as two columns, but maybe that’s overkill? 

I’d be curious to know what you think!

All best

Thomas
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Re: Xml - Lua - context

[Adam Reviczky via ntg-context]

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Hi Thomas,

Not sure whether it helps or not, but in regards to combinations and Lua I
have had some challenges as well, but Hans' and Wolfgangs' solution with
externalfigures works fine for me now:

https://mailman.ntg.nl/pipermail/ntg-context/2021/103822.html
https://mailman.ntg.nl/pipermail/ntg-context/2021/103827.html

Adam

On Mon, Mar 28, 2022 at 2:42 PM Thomas A. Schmitz via ntg-context <
ntg-context@ntg.nl> wrote:

> And here comes question 2, a very basic one: on A4 landscape pages, I want
> to place two images next to each other (like the spread pages of a book).
> What would be the preferred way of the really competent users to do this,
> again keeping in mind that I want to loop over page numbers in a pdf file
> and thus am coding in Lua. So far, I have tried or thought about:
>
> 1. Embedded xtable
>
> This is what I’m using now, an xtable of two columns for every A4 page. It
> works, but I wonder if it’s a good method.
>
> 2. combinations
>
> This appeared to be the most natural approach (because it’s what
> combinations are for), but I ran into expansion problems, added a few
> “function () end” in my code, but couldn’t make it compile. Combinations,
> combined with framed and externalfigure, are difficult to write in Lua - or
> am I too stupid to find the winning combination (sorry for the puns).
>
> 3. columns
>
> Again, this would seen like a natural approach, having every A4 page set
> up as two columns, but maybe that’s overkill?
>
> I’d be curious to know what you think!
>
> All best
>
> Thomas
>
> ___________________________________________________________________________________
> 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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Re: Xml - Lua - context

[Thomas A. Schmitz via ntg-context]

> On 28. Mar 2022, at 18:21, Adam Reviczky via ntg-context <ntg-context@ntg.nl> wrote:
> 
> Hi Thomas,
> 
> Not sure whether it helps or not, but in regards to combinations and Lua I have had some challenges as well, but Hans' and Wolfgangs' solution with externalfigures works fine for me now:
> 
> https://mailman.ntg.nl/pipermail/ntg-context/2021/103822.html
> https://mailman.ntg.nl/pipermail/ntg-context/2021/103827.html
> 
> Adam


Thank you, that’s already very useful! I should have looked if there is a “delayed” alternative for externalfigure as well, but I also take Hans’s warning to heart that all of this is non-trivial. 

Thank you, best wishes

Thomas
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\figuresymbol with underlying hyperlink?

[Steffen Wolfrum via ntg-context]

Hi,

is it possible to combine figuresymbol with some kind of \useurl?

The goal is to have an inline symbol that provides a http url link.

Best wishes, 
Steffen
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Re: \figuresymbol with underlying hyperlink?

[Henning Hraban Ramm via ntg-context]

Am 28.03.22 um 21:08 schrieb Steffen Wolfrum via ntg-context:
> Hi,
> 
> is it possible to combine figuresymbol with some kind of \useurl?
> 
> The goal is to have an inline symbol that provides a http url link.

AFAIK there’s nothing ready-made in that regard, but just define your 
own macro.

E.g. I use:

\define[1]\Web{\goto{\hyphenatedurl{#1}}[url(https://#1)]\autoinsertnextspace}
\define[1]\Email{\goto{\hyphenatedurl{#1}}[url(mailto:#1)]\autoinsertnextspace}
\define[1]\WebQR{\inouter[scope=local]{\barcode[alternative=qr code, 
text={#1}, width=10mm]}\Web{#1}}
\define[1]\WebArrow{\symbol[wingdings 
3][barb1right]~{\em\hyphenatedurl{#1}}}

So I guess you’d like something like:

\define[1]\Link{\goto{\symbol[wingdings 
3][barb1right]}[url(https://#1)]\autoinsertnextspace}

Hraban

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Re: \figuresymbol with underlying hyperlink?

[Steffen Wolfrum via ntg-context]

Unfortunately I have to use it at a heading:
and this gives an error:


\starttext

\define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}

\chapter{a\Link}

text

\stoptext


Steffen



> Am 29.03.2022 um 09:56 schrieb Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl>:
> 
> Am 28.03.22 um 21:08 schrieb Steffen Wolfrum via ntg-context:
>> Hi,
>> is it possible to combine figuresymbol with some kind of \useurl?
>> The goal is to have an inline symbol that provides a http url link.
> 
> AFAIK there’s nothing ready-made in that regard, but just define your own macro.
> 
> E.g. I use:
> 
> \define[1]\Web{\goto{\hyphenatedurl{#1}}[url(https://#1)]\autoinsertnextspace}
> \define[1]\Email{\goto{\hyphenatedurl{#1}}[url(mailto:#1)]\autoinsertnextspace}
> \define[1]\WebQR{\inouter[scope=local]{\barcode[alternative=qr code, text={#1}, width=10mm]}\Web{#1}}
> \define[1]\WebArrow{\symbol[wingdings 3][barb1right]~{\em\hyphenatedurl{#1}}}
> 
> So I guess you’d like something like:
> 
> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
> 
> Hraban
> 
> ___________________________________________________________________________________
> 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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Re: \figuresymbol with underlying hyperlink?

[Henning Hraban Ramm via ntg-context]

Did you try to use it with a parameter?
\Link{wiki.contextgarden.net}

Hraban

Am 29.03.22 um 10:48 schrieb Steffen Wolfrum:
> Unfortunately I have to use it at a heading:
> and this gives an error:
> 
> 
> \starttext
> 
> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
> 
> \chapter{a\Link}
> 
> text
> 
> \stoptext
> 
> 
> Steffen
> 
> 
> 
>> Am 29.03.2022 um 09:56 schrieb Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl>:
>>
>> Am 28.03.22 um 21:08 schrieb Steffen Wolfrum via ntg-context:
>>> Hi,
>>> is it possible to combine figuresymbol with some kind of \useurl?
>>> The goal is to have an inline symbol that provides a http url link.
>>
>> AFAIK there’s nothing ready-made in that regard, but just define your own macro.
>>
>> E.g. I use:
>>
>> \define[1]\Web{\goto{\hyphenatedurl{#1}}[url(https://#1)]\autoinsertnextspace}
>> \define[1]\Email{\goto{\hyphenatedurl{#1}}[url(mailto:#1)]\autoinsertnextspace}
>> \define[1]\WebQR{\inouter[scope=local]{\barcode[alternative=qr code, text={#1}, width=10mm]}\Web{#1}}
>> \define[1]\WebArrow{\symbol[wingdings 3][barb1right]~{\em\hyphenatedurl{#1}}}
>>
>> So I guess you’d like something like:
>>
>> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
>>
>> Hraban
>>
>> ___________________________________________________________________________________
>> 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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Re: \figuresymbol with underlying hyperlink?

[Steffen Wolfrum via ntg-context]

No, I didn’t…. Thank you very much, now it works ;o)

Steffen


> Am 29.03.2022 um 12:59 schrieb Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl>:
> 
> Did you try to use it with a parameter?
> \Link{wiki.contextgarden.net}
> 
> Hraban
> 
> Am 29.03.22 um 10:48 schrieb Steffen Wolfrum:
>> Unfortunately I have to use it at a heading:
>> and this gives an error:
>> \starttext
>> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
>> \chapter{a\Link}
>> text
>> \stoptext
>> Steffen
>>> Am 29.03.2022 um 09:56 schrieb Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl>:
>>> 
>>> Am 28.03.22 um 21:08 schrieb Steffen Wolfrum via ntg-context:
>>>> Hi,
>>>> is it possible to combine figuresymbol with some kind of \useurl?
>>>> The goal is to have an inline symbol that provides a http url link.
>>> 
>>> AFAIK there’s nothing ready-made in that regard, but just define your own macro.
>>> 
>>> E.g. I use:
>>> 
>>> \define[1]\Web{\goto{\hyphenatedurl{#1}}[url(https://#1)]\autoinsertnextspace}
>>> \define[1]\Email{\goto{\hyphenatedurl{#1}}[url(mailto:#1)]\autoinsertnextspace}
>>> \define[1]\WebQR{\inouter[scope=local]{\barcode[alternative=qr code, text={#1}, width=10mm]}\Web{#1}}
>>> \define[1]\WebArrow{\symbol[wingdings 3][barb1right]~{\em\hyphenatedurl{#1}}}
>>> 
>>> So I guess you’d like something like:
>>> 
>>> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
>>> 
>>> Hraban
>>> 
>>> ___________________________________________________________________________________
>>> 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
>>> ___________________________________________________________________________________
> 
> ___________________________________________________________________________________
> 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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___________________________________________________________________________________

Re: \figuresymbol with underlying hyperlink?

[Hans Hagen via ntg-context]

On 3/29/2022 10:48 AM, Steffen Wolfrum via ntg-context wrote:
> Unfortunately I have to use it at a heading:
> and this gives an error:
> 
> 
> \starttext
> 
> \define[1]\Link{\goto{\symbol[wingdings 3][barb1right]}[url(https://#1)]\autoinsertnextspace}
> 
> \chapter{a\Link}
> 
> text
> 
> \stoptext
shouldn't you pass some argument to your \Link macro?



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Xml - lua - context

[Thomas A. Schmitz via ntg-context]

Dear all,

For a small project, I have two questions (without MWE…) on processing xml via Lua and context. I’ll write two messages so eager volunteers can reply more easily!

So question one: given an xml structure like this

  <section>
    <sectiontitle>
      Introduction: the <em>Iliad</em>
    </sectiontitle>
    <sectionlist>
      Introduction: the <em>Iliad</em>
    </sectionlist>
  </section>

I want to typeset the section title with some added information. Since I’m processing in a loop, I thought this would be easier in Lua, so I have something like this:

local i = 0

local sessions = { “April 2”, “April 9”, “April 16” } -- etc.

function xml.functions.section(t)
	i = i + 1
	local raw_section = xml.text (t, "/sectiontitle")
	local section_head = i .. ". session, " .. sessions [i] .. ": " .. raw_section
	context.startsection { title=section_head }
	lxml.flush (t)
	context.stopsection ()
end

However, this means that the section_head is serialized as a string and not processed according to the xml setups, so I have “the <em>Iliad</em>” in my typeset document. How can this be avoided? How can I have the <em>...</em> processed instead of serialized in the section title? 

Thanks for looking at my code!

Thomas
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