[NTG-context] defining hashtag simulator

[NTG-context] defining hashtag simulator

[seyal.zavira]

Hi all,

I want to define a command that simulate hashtag behavior in social networks,

In other words, this command should put the hashtag sign at the beginning of it, replace spaces with dashes and also it should be a clickable link and unbreakable world.
I mean like this, for example:
\myhashtag{hello world}
It should be displayed as #hello_world in the final PDF and when clicked it will search for #hello_world throughout the pdf
How is this possible?
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[NTG-context] Re: defining hashtag simulator

[Hans Hagen]

On 5/19/2024 5:40 AM, seyal.zavira@gmail.com wrote:
> Hi all,
> 
> I want to define a command that simulate hashtag behavior in social networks,
> 
> In other words, this command should put the hashtag sign at the beginning of it, replace spaces with dashes and also it should be a clickable link and unbreakable world.
> I mean like this, for example:
> \myhashtag{hello world}
> It should be displayed as #hello_world in the final PDF and when clicked it will search for #hello_world throughout the pdf
> How is this possible?
One of the disppointments of pdf (some things indeed got worse over 
time) ...

"Table 215 — Named actions" lists several named actions (PDF 1.2) that 
interactive PDF processors
shall support; further names may be added in the future.
Table 215 — Named ac

Only a few were ever formal ok. Acrobat supports some more (at least 
did) but even on the

\goto{test}[action(search)]

one could not set a string. Adding a decent subset of commands is way 
easier than whatever came later to the standard. It's especially ironic 
in the perspective of accessibility.

However, if one could agree on a subset (as the standard is open) and 
open source viewers would support it ... but getting all on board is 
probably not possible).

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://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: defining hashtag simulator

[seyal.zavira]

Thanks.

What if we want the text to be copied when it is clicked?
I found these link on the stack site for this
https://tex.stackexchange.com/questions/174637/copy-to-clipboard-feature-in-pdf-output/545107#545107

also i defined this:
\def\Hashtag#1{
    \hbox{\tfa\ctxlua{
        str = "#1"
        replacespace = string.gsub(str," ","_")

        context.letterhash()
        context(replacespace)    
        }
    }
}
\starttext
\Hashtag{hello}
\stoptext

i used hbox for making phrase unbreakable.

How can you put all the code in the one Lua function and not need to put hbox or goto function outside of Lua?
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: defining hashtag simulator

[Hans Hagen via ntg-context]

On 5/20/2024 8:01 AM, seyal.zavira@gmail.com wrote:
> Thanks.
> 
> What if we want the text to be copied when it is clicked?
> I found these link on the stack site for this
> https://tex.stackexchange.com/questions/174637/copy-to-clipboard-feature-in-pdf-output/545107#545107
> 
> also i defined this:
> \def\Hashtag#1{
>      \hbox{\tfa\ctxlua{
>          str = "#1"
>          replacespace = string.gsub(str," ","_")
> 
>          context.letterhash()
>          context(replacespace)
>          }
>      }
> }
> \starttext
> \Hashtag{hello}
> \stoptext
> 
> i used hbox for making phrase unbreakable.
> 
> How can you put all the code in the one Lua function and not need to put hbox or goto function outside of Lua?

\startluacode
interfaces.implement {
     name      = "Hashtag",
     public    = true,
     protected = true,
     arguments = "string",
     actions   = function(str)
         context("{\\nohyphens\\letterhash %s}",string.gsub(str," ","_"))
      -- str = string.gsub(str," ","_")
      -- context.bgroup()
      -- context.nohyphens()
      -- context.letterhash()
      -- context(str)
      -- context.egroup()
     end
}
\stopluacode


-- 

-----------------------------------------------------------------
                                           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://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: defining hashtag simulator

[Hans Hagen]

On 5/20/2024 8:01 AM, seyal.zavira@gmail.com wrote:
> Thanks.
> 
> What if we want the text to be copied when it is clicked?
> I found these link on the stack site for this
> https://tex.stackexchange.com/questions/174637/copy-to-clipboard-feature-in-pdf-output/545107#545107
> 
> also i defined this:
> \def\Hashtag#1{
>      \hbox{\tfa\ctxlua{
>          str = "#1"
>          replacespace = string.gsub(str," ","_")
> 
>          context.letterhash()
>          context(replacespace)
>          }
>      }
> }
> \starttext
> \Hashtag{hello}
> \stoptext
> 
> i used hbox for making phrase unbreakable.
> 
> How can you put all the code in the one Lua function and not need to put hbox or goto function outside of Lua?
In the next upload you can do this:

\protected\def\Hashtag#1%
   {\begingroup
    \nohyphens
    \spacechar\underscoreasciicode
    \nospaces\plusthree
    \letterhash#1%
    \endgroup}

(was an easy extension given what we already have)

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://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________