Use a pipe to generate only first word of a variable?

Use a pipe to generate only first word of a variable?

[Paul Kelleher]

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Hello,

Is it possible to use a pipe in a template to generate just the first word 
of a variable? 

My specific use case is to produce just the first name of a first-and-last 
name that I place in the "to" field of a YAML block that passes info to a 
letter template. I'd like to generate "Dear <first name>,". To do this now, 
I've defined "to" as an array, with the first name as the first value of 
the array and the last name as the second value; then I can use the 
predefined 'first' pipe to return just the first name. But for reasons 
specific to my particular use case, it'd be great to have a pipe that 
returns the first word of a multi-word variable.

Thanks!

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Re: Use a pipe to generate only first word of a variable?

[Paul Kelleher]

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Just realized that one approach is to have Pandoc pass the full name string
(e.g. 'First Last') to the template, but then to create a macro inside the
template that will return just the first word in the string, as described
here
<https://tex.stackexchange.com/questions/316730/extract-first-word-in-a-string>.
That worked for me!

On Fri, Feb 3, 2023 at 11:55 AM Paul Kelleher <paul-JZTKsBFbLNkkm2bSNb+QWw@public.gmane.org> wrote:

> Hello,
>
> Is it possible to use a pipe in a template to generate just the first word
> of a variable?
>
> My specific use case is to produce just the first name of a first-and-last
> name that I place in the "to" field of a YAML block that passes info to a
> letter template. I'd like to generate "Dear <first name>,". To do this now,
> I've defined "to" as an array, with the first name as the first value of
> the array and the last name as the second value; then I can use the
> predefined 'first' pipe to return just the first name. But for reasons
> specific to my particular use case, it'd be great to have a pipe that
> returns the first word of a multi-word variable.
>
> Thanks!
>
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>

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Re: Use a pipe to generate only first word of a variable?

[Bastien DUMONT]

You can also write:

---
author:
  first: John
  last: Doe
---

And use in your template use $author.first$

Le Friday 03 February 2023 à 12:57:16PM, Paul Kelleher a écrit :
> Just realized that one approach is to have Pandoc pass the full name string
> (e.g. 'First Last') to the template, but then to create a macro inside the
> template that will return just the first word in the string, as described [1]
> here. That worked for me!
> 
> On Fri, Feb 3, 2023 at 11:55 AM Paul Kelleher <[2]paul-JZTKsBFbLNkkm2bSNb+QWw@public.gmane.org> wrote:
> 
>     Hello,
> 
>     Is it possible to use a pipe in a template to generate just the first word
>     of a variable? 
> 
>     My specific use case is to produce just the first name of a first-and-last
>     name that I place in the "to" field of a YAML block that passes info to a
>     letter template. I'd like to generate "Dear <first name>,". To do this now,
>     I've defined "to" as an array, with the first name as the first value of
>     the array and the last name as the second value; then I can use the
>     predefined 'first' pipe to return just the first name. But for reasons
>     specific to my particular use case, it'd be great to have a pipe that
>     returns the first word of a multi-word variable.
> 
>     Thanks!
> 
>     --
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> pandoc-discuss/
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> 
> References:
> 
> [1] https://tex.stackexchange.com/questions/316730/extract-first-word-in-a-string
> [2] mailto:paul-JZTKsBFbLNkkm2bSNb+QWw@public.gmane.org
> [3] https://groups.google.com/d/topic/pandoc-discuss/cEe1t7Fw4-o/unsubscribe
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