Re: Pandoc filters to produces multiple document reading lines of a CSV

[Gianluca Carbone <gianlucarbone96-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thank you so much for your help! It solve very well my problem!

Il giorno giovedì 13 ottobre 2022 alle 15:30:36 UTC+2 Albert Krewinkel ha 
scritto:

> Hi Gianluca,
>
> Gianluca Carbone <gianluc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > I want to obtain multiple documents in output (markdown documents)
> > which uses a specifc template already defined and working by me.
> >
> > The input file, must be a CSV file with an header for example:
> > // CSV file \\
> > name, surname, date, location
> > Josh, White, 2022-10-12, Rome
> > Kate, Brown, 2021-09-30, London
> >
> > I want in output in this case 2 documents:
> >
> > 1. One with content filled by the values of first record of CSV
> > 2. One with content filled by the values of the second record of CSV
> >
> > How can I do something like this ?
>
> Not sure I understand this correctly, but I assume you have a template
> that contains things like
>
> ${name} ${surname}, born ${date} in ${location}
>
> and you'd like to use that with a CSV table, using the header label as
> variable name? If that's correct, then the following custom writer
> should help:
>
> ``` lua
> local stringify = pandoc.utils.stringify
>
> function Writer (doc, opts)
> assert(doc.blocks[1] and doc.blocks[1].t == 'Table', 'expected table')
> -- table does not have colspans, footer, etc. Convert to simple table
> local tbl = pandoc.utils.to_simple_table(doc.blocks[1])
> local result = pandoc.List{}
> for _, row in ipairs(tbl.rows) do
> local meta = pandoc.Meta(doc.meta) -- clone
> for i, cell in ipairs(tbl.header) do
> meta[stringify(cell)] = row[i]
> end
> local rowdoc = pandoc.Pandoc({}, meta)
> result:insert(pandoc.write(rowdoc, 'markdown', opts))
> end
> return table.concat(result, '\f')
> end
> ```
>
> Save the code to a file `meta-from-table.lua` and call pandoc with
>
> pandoc --to=meta-from-table.lua ...
>
> where `...` are your other options, including the template. The output
> is built from all rows, with a line separator character between each
> record.
>
> Hope that helps,
>
> Albert
>
> -- 
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124
>

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