Making a Table in a python filter

Making a Table in a python filter

[Thomas Hodgson]

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I have been playing with a python filter which will take code blocks 
containing logical formulae, e.g., ('P and Q') and produce a truth table. I 
have done this for LaTeX output. I use the truth-table-generator python 
package to create the LaTeX table, and then the filter returns a RawBlock 
with that LaTeX code.

The python package will also return tables in Markdown. Is there a simple 
way for the filter to turn that Markdown string into a Pandoc Table object? 
The filter could then return the Table, and it would then work for any 
output format.

I see in principle how I could write a function that takes a string a 
returns a table. But it seems to me that it's likely that somebody has 
already done this.

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Re: Making a Table in a python filter

[John MacFarlane]

In Lua filters you can use pandoc.read to parse the content.

In Haskell you can just call pandoc's Markdown reader.

In Python, I don't know -- I suppose you could start a
process and call the pandoc executable?


Thomas Hodgson <thomas.hodgson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I have been playing with a python filter which will take code blocks 
> containing logical formulae, e.g., ('P and Q') and produce a truth table. I 
> have done this for LaTeX output. I use the truth-table-generator python 
> package to create the LaTeX table, and then the filter returns a RawBlock 
> with that LaTeX code.
>
> The python package will also return tables in Markdown. Is there a simple 
> way for the filter to turn that Markdown string into a Pandoc Table object? 
> The filter could then return the Table, and it would then work for any 
> output format.
>
> I see in principle how I could write a function that takes a string a 
> returns a table. But it seems to me that it's likely that somebody has 
> already done this.
>
> -- 
> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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Re: Making a Table in a python filter

[Thomas Hodgson]

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Thanks!

I got the Python approach working, but I have the following, possibly, 
confused question. My code returns a string which represents a Pandoc table 
object, like this:

```
Table [] [AlignCenter,AlignCenter,AlignCenter] [0.0,0.0,0.0]
 [[Plain [Str "P"]]
 ,[Plain [Str "Q"]]
 ,[Plain [Str "P",Space,Str "and",Space,Str "Q"]]]
 [[[Plain [Str "1"]]
  ,[Plain [Str "1"]]
  ,[Plain [Str "1"]]]
 ,[[Plain [Str "1"]]
  ,[Plain [Str "0"]]
  ,[Plain [Str "0"]]]
 ,[[Plain [Str "0"]]
  ,[Plain [Str "1"]]
  ,[Plain [Str "0"]]]
 ,[[Plain [Str "0"]]
  ,[Plain [Str "0"]]
  ,[Plain [Str "0"]]]]
```

But, I can't just return that. So, I'm still looking for a simple way to 
turn that into a Table object that I can return. Or am I missing something?

On Friday, 27 November 2020 at 18:56:00 UTC+1 John MacFarlane wrote:

>
> In Lua filters you can use pandoc.read to parse the content.
>
> In Haskell you can just call pandoc's Markdown reader.
>
> In Python, I don't know -- I suppose you could start a
> process and call the pandoc executable?
>
>
> Thomas Hodgson <thomas....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > I have been playing with a python filter which will take code blocks 
> > containing logical formulae, e.g., ('P and Q') and produce a truth 
> table. I 
> > have done this for LaTeX output. I use the truth-table-generator python 
> > package to create the LaTeX table, and then the filter returns a 
> RawBlock 
> > with that LaTeX code.
> >
> > The python package will also return tables in Markdown. Is there a 
> simple 
> > way for the filter to turn that Markdown string into a Pandoc Table 
> object? 
> > The filter could then return the Table, and it would then work for any 
> > output format.
> >
> > I see in principle how I could write a function that takes a string a 
> > returns a table. But it seems to me that it's likely that somebody has 
> > already done this.
> >
> > -- 
> > You received this message because you are subscribed to the Google 
> Groups "pandoc-discuss" group.
> > To unsubscribe from this group and stop receiving emails from it, send 
> an email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> > To view this discussion on the web visit 
> https://groups.google.com/d/msgid/pandoc-discuss/398d2024-9d0a-4921-a03c-d8ae60c161edn%40googlegroups.com
> .
>

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Re: Making a Table in a python filter

[Thomas Hodgson]

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I realised that the best option for me is probably Panflute, which has a
function to convert text to a pandoc object.

On Sat, 28 Nov 2020 at 17:42, Thomas Hodgson <thomas.hodgson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:

> Thanks!
>
> I got the Python approach working, but I have the following, possibly,
> confused question. My code returns a string which represents a Pandoc table
> object, like this:
>
> ```
> Table [] [AlignCenter,AlignCenter,AlignCenter] [0.0,0.0,0.0]
>  [[Plain [Str "P"]]
>  ,[Plain [Str "Q"]]
>  ,[Plain [Str "P",Space,Str "and",Space,Str "Q"]]]
>  [[[Plain [Str "1"]]
>   ,[Plain [Str "1"]]
>   ,[Plain [Str "1"]]]
>  ,[[Plain [Str "1"]]
>   ,[Plain [Str "0"]]
>   ,[Plain [Str "0"]]]
>  ,[[Plain [Str "0"]]
>   ,[Plain [Str "1"]]
>   ,[Plain [Str "0"]]]
>  ,[[Plain [Str "0"]]
>   ,[Plain [Str "0"]]
>   ,[Plain [Str "0"]]]]
> ```
>
> But, I can't just return that. So, I'm still looking for a simple way to
> turn that into a Table object that I can return. Or am I missing something?
>
> On Friday, 27 November 2020 at 18:56:00 UTC+1 John MacFarlane wrote:
>
>>
>> In Lua filters you can use pandoc.read to parse the content.
>>
>> In Haskell you can just call pandoc's Markdown reader.
>>
>> In Python, I don't know -- I suppose you could start a
>> process and call the pandoc executable?
>>
>>
>> Thomas Hodgson <thomas....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>
>> > I have been playing with a python filter which will take code blocks
>> > containing logical formulae, e.g., ('P and Q') and produce a truth
>> table. I
>> > have done this for LaTeX output. I use the truth-table-generator python
>> > package to create the LaTeX table, and then the filter returns a
>> RawBlock
>> > with that LaTeX code.
>> >
>> > The python package will also return tables in Markdown. Is there a
>> simple
>> > way for the filter to turn that Markdown string into a Pandoc Table
>> object?
>> > The filter could then return the Table, and it would then work for any
>> > output format.
>> >
>> > I see in principle how I could write a function that takes a string a
>> > returns a table. But it seems to me that it's likely that somebody has
>> > already done this.
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> Groups "pandoc-discuss" group.
>> > To unsubscribe from this group and stop receiving emails from it, send
>> an email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> > To view this discussion on the web visit
>> https://groups.google.com/d/msgid/pandoc-discuss/398d2024-9d0a-4921-a03c-d8ae60c161edn%40googlegroups.com.
>>
>>
> --
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> .
>

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Re: Making a Table in a python filter

[christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]

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I have been working on a library that essentially eases the creation of 
pandoc tables in Python. (It converts the AST in an internal representation 
with additional helpers.)

You might find it easier to create your table there and just call a method 
to convert it to an AST.

There's some complication as there's hint of yet another change in the AST 
so I paused the project a bit. But probably I will release it in the coming 
week with lesser features than I initially planned.

But if you want to do it now, yes, panflute AST is the way to go. You 
should not construct the AST directly. My library also builds on top of 
panflute.

On Friday, November 27, 2020 at 5:14:19 AM UTC-8 thomas....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:

>
> I have been playing with a python filter which will take code blocks 
> containing logical formulae, e.g., ('P and Q') and produce a truth table. I 
> have done this for LaTeX output. I use the truth-table-generator python 
> package to create the LaTeX table, and then the filter returns a RawBlock 
> with that LaTeX code.
>
> The python package will also return tables in Markdown. Is there a simple 
> way for the filter to turn that Markdown string into a Pandoc Table object? 
> The filter could then return the Table, and it would then work for any 
> output format.
>
> I see in principle how I could write a function that takes a string a 
> returns a table. But it seems to me that it's likely that somebody has 
> already done this.
>

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Re: Making a Table in a python filter

[Thomas Hodgson]

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Thanks. I would be interested in your library, when it's done.

I got my simple filter to work:
https://gitlab.com/-/snippets/2044228

On Mon, 30 Nov 2020 at 07:51, christi...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org <
christian.kolen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> I have been working on a library that essentially eases the creation of
> pandoc tables in Python. (It converts the AST in an internal representation
> with additional helpers.)
>
> You might find it easier to create your table there and just call a method
> to convert it to an AST.
>
> There's some complication as there's hint of yet another change in the AST
> so I paused the project a bit. But probably I will release it in the coming
> week with lesser features than I initially planned.
>
> But if you want to do it now, yes, panflute AST is the way to go. You
> should not construct the AST directly. My library also builds on top of
> panflute.
>
> On Friday, November 27, 2020 at 5:14:19 AM UTC-8 thomas....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> wrote:
>
>>
>> I have been playing with a python filter which will take code blocks
>> containing logical formulae, e.g., ('P and Q') and produce a truth table. I
>> have done this for LaTeX output. I use the truth-table-generator python
>> package to create the LaTeX table, and then the filter returns a RawBlock
>> with that LaTeX code.
>>
>> The python package will also return tables in Markdown. Is there a simple
>> way for the filter to turn that Markdown string into a Pandoc Table object?
>> The filter could then return the Table, and it would then work for any
>> output format.
>>
>> I see in principle how I could write a function that takes a string a
>> returns a table. But it seems to me that it's likely that somebody has
>> already done this.
>>
> --
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> .
>

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