From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.text.pandoc/32735 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "'William Lupton' via pandoc-discuss" Newsgroups: gmane.text.pandoc Subject: Re: Wrapping sections of text with
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[2a00:1450:4864:20::52f]) by gmr-mx.google.com with ESMTPS id k24-20020a05600c1c9800b003f6fd9bbdb8si80692wms.2.2023.06.01.01.34.56 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Jun 2023 01:34:56 -0700 (PDT) Received-SPF: pass (google.com: domain of wlupton-QSt+ys/nuMyEUIsrzH9SikB+6BGkLq7r@public.gmane.org designates 2a00:1450:4864:20::52f as permitted sender) client-ip=2a00:1450:4864:20::52f; Original-Received: by mail-ed1-x52f.google.com with SMTP id 4fb4d7f45d1cf-51491b87565so957506a12.1 for ; Thu, 01 Jun 2023 01:34:56 -0700 (PDT) X-Received: by 2002:a05:6402:1219:b0:510:e756:3a1e with SMTP id c25-20020a056402121900b00510e7563a1emr5060902edw.11.1685608495702; Thu, 01 Jun 2023 01:34:55 -0700 (PDT) In-Reply-To: <05ba5663-1578-d555-8539-d6a2bdff6743-FcZObrvlYduBUy7/sJONFg@public.gmane.org> X-Original-Sender: wlupton-QSt+ys/nuMyEUIsrzH9SikB+6BGkLq7r@public.gmane.org X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@broadband-forum.org header.s=google header.b=dZApbrod; spf=pass (google.com: domain of wlupton-QSt+ys/nuMyEUIsrzH9SikB+6BGkLq7r@public.gmane.org designates 2a00:1450:4864:20::52f as permitted sender) smtp.mailfrom=wlupton-QSt+ys/nuMyEUIsrzH9SikB+6BGkLq7r@public.gmane.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=broadband-forum.org X-Original-From: William Lupton Precedence: list Mailing-list: list pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org; contact pandoc-discuss+owners-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-ID: X-Google-Group-Id: 1007024079513 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , Xref: news.gmane.io gmane.text.pandoc:32735 Archived-At: --0000000000009df96c05fd0d4f72 Content-Type: text/plain; charset="UTF-8" Am I correct in thinking that when you say "filter" here, you really mean "writer"? In filters, you can use the 'traverse' field to force top-down traversal. See https://pandoc.org/lua-filters.html#traversal-order In writers, you can choose to call doc:walk(), which will honour 'traverse'. See https://pandoc.org/custom-writers.html#example-modified-markdown-writer (and example below) However, if you use pandoc.scaffolding.Writer (as I think you are?) then I suspect that you can't control the traversal order (but I'm not sure that it makes sense to do so, because, for example, surely you always want the contents of a
to have been traversed before you add '
' and '
'?). With the custom writer shown below, and with an input file that consists of the single line 'Text' (and using my logging module ), you get this with the default 'typewise' traversal: (#) inline Str "Text" (#) inlines Inlines[1] {[1] Str "Text"} (#) block Para {content: Inlines[1] {[1] Str "Text"}} (#) blocks Blocks[1] {[1] Para {content: Inlines[1] {[1] Str "Text"}}} (#) meta Meta {} (#) doc Pandoc { blocks: Blocks[1] { [1] Para { content: Inlines[1] { [1] Str "Text" } } } meta: Meta {} } ...and this with 'topdown' traversal: (#) doc Pandoc { blocks: Blocks[1] { [1] Para { content: Inlines[1] { [1] Str "Text" } } } meta: Meta {} } (#) meta Meta {} (#) blocks Blocks[1] {[1] Para {content: Inlines[1] {[1] Str "Text"}}} (#) block Para {content: Inlines[1] {[1] Str "Text"}} (#) inlines Inlines[1] {[1] Str "Text"} (#) inline Str "Text" The writer: local logging = require 'logging' local function report(label, elem) logging.temp(label, elem) end -- 'typewise' (default) or 'topdown' local traverse = 'topdown' function Writer (doc, opts) local filter = { traverse = traverse, Inline = function(inline) report('inline', inline) end, Inlines= function(inlines) report('inlines', inlines) end, Block = function(block) report('block', block) end, Blocks = function(blocks) report('blocks', blocks) end, Meta = function(meta) report('meta', meta) end, Pandoc = function(doc) report('doc', doc) end, } return pandoc.write(doc:walk(filter), 'html', opts) end On Tue, 30 May 2023 at 20:23, H wrote: > On 05/30/2023 02:30 PM, H wrote: > > On 05/29/2023 12:31 AM, H wrote: > > On May 28, 2023 8:50:56 PM EDT, H > wrote: >> >> On 05/26/2023 03:43 PM, H wrote: >> >> No CSS (I had mentioned that in a previous message), also no >> modifications to the markdown file so the entire interpretation of layout, >> adding style information etc. needs to be in my custom PDF writer. This >> custom writer will - obviously - be specific for this single dedicated use >> by myself. >> >> Any pointers (links, code fragments to look at etc.) as to how I should >> traverse the tree to be able to output my custom PDF would be greatly >> appreciated since this will be my first pandoc writer. >> >> I am making some progress working on my custom writer for my desired html >> output layout. I am using the 3.0 syntax where the output function looks >> like >> >> Writer.Pandoc = function(doc) >> return Writer.Blocks(doc.blocks) >> end >> >> At the start of my document I also have >> >> Writer = pandoc.scaffolding.Writer >> >> with customization added for inlines and blocks added. >> >> In the Writer.Pandoc function above, is there a way I can see exactly in >> which order the document is evaluated? I am interested in exploring >> traverse = 'topdown' vs. traverse = 'typewise' as I think the topdown >> traversal will be required to add the necessary
and
in the >> correct locations to my final document. >> >> Again, please bear in mind that I will do /all/ processing in this my >> custom lua writer. >> >> Thanks. >> > > Upon further reading, it looks like the traverse directive might only be > applicable to filters when the AST is being processed > > Is this correct? If so, is there anyway I can view the traversal > processing sequence in my filter when I am writing and debugging it? > > Hoping someone can shed some light on the 'traverse' directive and how I > can debug my filter using different 'traverse' directives. > > Thanks. > > Upon further experimentation, it looks like outputting to 'native' format, > ie the AST tree after running a filter will show me what the modified tree > looks like. > > It would have been nice to have some version of 'verbose' to apply to a > filter to see in which order elements are processed. > > > -- > 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 > To view this discussion on the web visit > https://groups.google.com/d/msgid/pandoc-discuss/05ba5663-1578-d555-8539-d6a2bdff6743%40meddatainc.com > > . > -- 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 To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/CAEe_xxhTjZJRuNZFtYMqh1eSNM9yobfgs_YTj2muxs1px0ygjg%40mail.gmail.com. --0000000000009df96c05fd0d4f72 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Am I correct in thinking that when you say "filter&qu= ot; here, you really mean "writer"?

In filters= , you can use the 'traverse' field to force top-down traversal. See= https://pa= ndoc.org/lua-filters.html#traversal-order

In w= riters, you can choose to call doc:walk(), which will honour 'traverse&= #39;. See=C2=A0https://pandoc.org/custom-writers.html#example-modi= fied-markdown-writer (and example below)

Howev= er, if you use=C2=A0pandoc.scaffolding.Writer (as I think you are?) then I = suspect that you can't control the traversal order (but I'm not sur= e that it makes sense to do so, because, for example, surely you always wan= t the contents of a <div> to have been traversed before you add '= <div>' and '</div>'?).

Wit= h the custom writer shown below, and with an input file that consists of th= e single line 'Text' (and using my logging module), you get this with the default 't= ypewise' traversal:

(= #) inline Str "Text"
(#) inlines Inlines[1] {[1] Str "Tex= t"}
(#) block Para {content: Inlines[1] {[1] Str "Text"}}=
(#) blocks Blocks[1] {[1] Para {content: Inlines[1] {[1] Str "Text= "}}}
(#) meta Meta {}
(#) doc Pandoc {
=C2=A0 blocks: Blocks[= 1] {
=C2=A0 =C2=A0 [1] Para {
=C2=A0 =C2=A0 =C2=A0 content: Inlines[1= ] {
=C2=A0 =C2=A0 =C2=A0 =C2=A0 [1] Str "Text"
=C2=A0 =C2= =A0 =C2=A0 }
=C2=A0 =C2=A0 }
=C2=A0 }
=C2=A0 meta: Meta {}
}

...and this with 'topdown' traver= sal:

(#) doc Pandoc {
= =C2=A0 blocks: Blocks[1] {
=C2=A0 =C2=A0 [1] Para {
=C2=A0 =C2=A0 =C2= =A0 content: Inlines[1] {
=C2=A0 =C2=A0 =C2=A0 =C2=A0 [1] Str "Text= "
=C2=A0 =C2=A0 =C2=A0 }
=C2=A0 =C2=A0 }
=C2=A0 }
=C2=A0 m= eta: Meta {}
}
(#) meta Meta {}
(#) blocks Blocks[1] {[1] Para {co= ntent: Inlines[1] {[1] Str "Text"}}}
(#) block Para {content: = Inlines[1] {[1] Str "Text"}}
(#) inlines Inlines[1] {[1] Str &= quot;Text"}
(#) inline Str "Text"
The writer:

= local logging =3D require 'logging'

local function report(la= bel, elem)
=C2=A0 =C2=A0 logging.temp(label, elem)
end

-- '= ;typewise' (default) or 'topdown'
local traverse =3D 'to= pdown'

function Writer (doc, opts)
=C2=A0 =C2=A0 local filter= =3D {
=C2=A0 =C2=A0 =C2=A0 =C2=A0 traverse =3D traverse,
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 Inline =3D function(inline)
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 report('inline', inline)
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 end,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Inlines=3D function(inlines)
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 report('inlines', inlines= )
=C2=A0 =C2=A0 =C2=A0 =C2=A0 end,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Block = =3D function(block)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 report(= 9;block', block)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 end,
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 Blocks =3D function(blocks)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 report('blocks', blocks)
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 end,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Meta =3D function(meta)
=C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 report('meta', meta)
=C2=A0 = =C2=A0 =C2=A0 =C2=A0 end,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Pandoc =3D functio= n(doc)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 report('doc', d= oc)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 end,
=C2=A0 =C2=A0 }
=C2=A0 =C2=A0= return pandoc.write(doc:walk(filter), 'html', opts)
end<= br>

On Tue, 30 May 2023 at 20:23, H <agents-FcZObrvlYduBUy7/sJONFg@public.gmane.org> wrote:
=20 =20 =20
On 05/30/2023 02:30 PM, H wrote:
=20
On 05/29/2023 12:31 AM, H wrote:
=20
On May 28, 2023 8:50:56 PM EDT, H <agents@meddatainc.= com> wrote:
On 05/26/2023 03:43 PM, H wrote:
=20 No CSS (I had mentioned that in a previous message), also no modifications to the markdown file so the entire interpretation of layout, adding style information etc. needs to be in my custom PDF writer. This custom writer will - obviously - be specific for this single dedicated use by myself.

Any pointers (links, code fragments to look at etc.) as to how I should traverse the tree to be able to output my custom PDF would be greatly appreciated since this will be my first pandoc writer.

I am making some progress working on my custom writer for my desired html output layout. I am using the 3.0 syntax where the output function looks like

Writer.Pandoc =3D function(doc)
=C2=A0=C2=A0=C2=A0 return Writer.Blocks(doc.blocks)
end

At the start of my document I also have

Writer =3D pandoc.scaffolding.Writer

with customization added for inlines and blocks added.

In the Writer.Pandoc function above, is there a way I can see exactly in which order the document is evaluated? I am interested in exploring traverse =3D 'topdown' vs. tr= averse =3D 'typewise' as I think the topdown traversal will = be required to add the necessary <div> and </div> in the correct locations to my final document.

Again, please bear in mind that I will do /all/ processing in this my custom lua writer.

Thanks.


Upon further reading, it looks like the traverse directive might only be applicable to filters when the AST is being processed

Is this correct? If so, is there anyway I can view the traversal processing sequence in my filter when I am writing and debugging it?

Hoping someone can shed some light on the 'traverse' direc= tive and how I can debug my filter using different 'traverse' directives.

Thanks.

Upon further experimentation, it looks like outputting to 'native' format, ie the AST tree after running a filter will = show me what the modified tree looks like.

It would have been nice to have some version of 'verbose' to apply to a filter to see in which order elements are processed.


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