* Lua filter for section numbers in internal references @ 2021-12-22 9:16 be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org [not found] ` <186dfc25-8ebd-43ef-8a5b-0fae22106712n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 0 siblings, 1 reply; 7+ messages in thread From: be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org @ 2021-12-22 9:16 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 2019 bytes --] Hi, I am trying to make a Lua filter that will replace the normal link text in internal links with section numbers. I want to use internal links in my markdown document like this: See the [Quick introduction]. So, the links are given by the full title of the respective section they refer to. I found a recipe at stackoverflow (https://stackoverflow.com/questions/54128461/how-to-use-latex-section-numbers-in-pandoc-cross-reference) which does this if the link is given like this: See the [](#quick-introduction) This is the Lua code: local make_sections = (require 'pandoc.utils').make_sections local section_numbers = {} function populate_section_numbers (doc) function populate (elements) for _, el in pairs(elements) do if el.t == 'Div' and el.attributes.number then section_numbers['#' .. el.attr.identifier] = el.attributes.number populate(el.content) end end end populate(make_sections(true, nil, doc.blocks)) end function resolve_section_ref (link) if #link.content > 0 or link.target:sub(1, 1) ~= '#' then return nil end local section_number = pandoc.Str(section_numbers[link.target]) return pandoc.Link({section_number}, link.target, link.title, link.attr) end return { {Pandoc = populate_section_numbers}, {Link = resolve_section_ref} } While I do understand what it does, I cannot find out how to change it to my case. How can I retrieve the part written in [] instead of the attributes when scanning the document for those internal links? Or is the not even possible? Any idea is appreciated. Torsten -- 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/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 2916 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
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* Re: Lua filter for section numbers in internal references [not found] ` <186dfc25-8ebd-43ef-8a5b-0fae22106712n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> @ 2021-12-22 11:12 ` Bastien DUMONT 2021-12-22 12:07 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 2021-12-22 12:12 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 2021-12-22 14:53 ` Albert Krewinkel 1 sibling, 2 replies; 7+ messages in thread From: Bastien DUMONT @ 2021-12-22 11:12 UTC (permalink / raw) To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw It seems that you can use pandoc-crossref for such case: see the manual here (https://github.com/lierdakil/pandoc-crossref/blob/master/docs/index.md). To answer the technical part of the question, `pandoc -t native <<< 'See the [Quick introduction].'` shows that "[Quick introduction]" is parsed as a normal string. You can create a span instead by adding a class: [Quick introduction]{.sectionref}. But even then, it will be simplier to parse its content if it is limited to one string (like "Quick-introduction"). Le Wednesday 22 December 2021 à 01:16:01AM, be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org a écrit : > Hi, > > I am trying to make a Lua filter that will replace the normal link text in > internal links with section numbers. I want to use internal links in my > markdown document like this: > > See the [Quick introduction]. > > So, the links are given by the full title of the respective section they refer > to. I found a recipe at stackoverflow (https://stackoverflow.com/questions/ > 54128461/how-to-use-latex-section-numbers-in-pandoc-cross-reference) which does > this if the link is given like this: > > See the [](#quick-introduction) > > This is the Lua code: > > local make_sections = (require 'pandoc.utils').make_sections > local section_numbers = {} > > function populate_section_numbers (doc) > function populate (elements) > for _, el in pairs(elements) do > if el.t == 'Div' and el.attributes.number then > section_numbers['#' .. el.attr.identifier] = el.attributes.number > populate(el.content) > end > end > end > populate(make_sections(true, nil, doc.blocks)) > end > > function resolve_section_ref (link) > if #link.content > 0 or link.target:sub(1, 1) ~= '#' then > return nil > end > local section_number = pandoc.Str(section_numbers[link.target]) > return pandoc.Link({section_number}, link.target, link.title, link.attr) > end > > return { > {Pandoc = populate_section_numbers}, > {Link = resolve_section_ref} > } > > > > While I do understand what it does, I cannot find out how to change it to my > case. How can I retrieve the part written in [] instead of the attributes when > scanning the document for those internal links? Or is the not even possible? > > Any idea is appreciated. > > > Torsten > > -- > 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 [1]pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > To view this discussion on the web visit [2]https://groups.google.com/d/msgid/ > pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com. > > References: > > [1] mailto:pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > [2] https://groups.google.com/d/msgid/pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com?utm_medium=email&utm_source=footer -- 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/YcMIB/cIBo3JwTa5%40localhost. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Lua filter for section numbers in internal references 2021-12-22 11:12 ` Bastien DUMONT @ 2021-12-22 12:07 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 2021-12-22 12:12 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 1 sibling, 0 replies; 7+ messages in thread From: be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org @ 2021-12-22 12:07 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 4120 bytes --] Thanks for your ideas. I had considered pandoc-crossref also but didn't want to introduce a new dependency without a real need. If it can be accomplished using a simple and small Lua filter, I would prefer this. I also observed that the native output creates a normal string. However, using Pandoc's make_section function, the references are delivered as DIVs with a number attribute. This is easy On Wednesday, December 22, 2021 at 12:13:38 PM UTC+1 Bastien Dumont wrote: > It seems that you can use pandoc-crossref for such case: see the manual > here ( > https://github.com/lierdakil/pandoc-crossref/blob/master/docs/index.md). > > To answer the technical part of the question, `pandoc -t native <<< 'See > the [Quick introduction].'` shows that "[Quick introduction]" is parsed as > a normal string. You can create a span instead by adding a class: [Quick > introduction]{.sectionref}. But even then, it will be simplier to parse its > content if it is limited to one string (like "Quick-introduction"). > > Le Wednesday 22 December 2021 à 01:16:01AM, be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org a > écrit : > > Hi, > > > > I am trying to make a Lua filter that will replace the normal link text > in > > internal links with section numbers. I want to use internal links in my > > markdown document like this: > > > > See the [Quick introduction]. > > > > So, the links are given by the full title of the respective section they > refer > > to. I found a recipe at stackoverflow ( > https://stackoverflow.com/questions/ > > 54128461/how-to-use-latex-section-numbers-in-pandoc-cross-reference) > which does > > this if the link is given like this: > > > > See the [](#quick-introduction) > > > > This is the Lua code: > > > > local make_sections = (require 'pandoc.utils').make_sections > > local section_numbers = {} > > > > function populate_section_numbers (doc) > > function populate (elements) > > for _, el in pairs(elements) do > > if el.t == 'Div' and el.attributes.number then > > section_numbers['#' .. el.attr.identifier] = el.attributes.number > > populate(el.content) > > end > > end > > end > > populate(make_sections(true, nil, doc.blocks)) > > end > > > > function resolve_section_ref (link) > > if #link.content > 0 or link.target:sub(1, 1) ~= '#' then > > return nil > > end > > local section_number = pandoc.Str(section_numbers[link.target]) > > return pandoc.Link({section_number}, link.target, link.title, link.attr) > > end > > > > return { > > {Pandoc = populate_section_numbers}, > > {Link = resolve_section_ref} > > } > > > > > > > > While I do understand what it does, I cannot find out how to change it > to my > > case. How can I retrieve the part written in [] instead of the > attributes when > > scanning the document for those internal links? Or is the not even > possible? > > > > Any idea is appreciated. > > > > > > Torsten > > > > -- > > 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 [1]pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > > To view this discussion on the web visit [2] > https://groups.google.com/d/msgid/ > > pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com. > > > > References: > > > > [1] mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > > [2] > https://groups.google.com/d/msgid/pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com?utm_medium=email&utm_source=footer > > -- 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/503bf9a0-73f8-49f4-a9a6-abbf01a24650n%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 6767 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Lua filter for section numbers in internal references 2021-12-22 11:12 ` Bastien DUMONT 2021-12-22 12:07 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org @ 2021-12-22 12:12 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org [not found] ` <c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 1 sibling, 1 reply; 7+ messages in thread From: be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org @ 2021-12-22 12:12 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 4287 bytes --] Thanks for your ideas. I had considered pandoc-crossref also but didn't want to introduce a new dependency without a real need. If it can be accomplished using a simple and small Lua filter, I would prefer this. I also observed that the native output creates a normal string. However, using Pandoc's make_section function, the references are delivered as DIVs with a number attribute. This is easy to process. I just need access to the text string inside the square brackets. So, how to access the text within a DIV? I think this is the thing I need to know ... On Wednesday, December 22, 2021 at 12:13:38 PM UTC+1 Bastien Dumont wrote: > It seems that you can use pandoc-crossref for such case: see the manual > here ( > https://github.com/lierdakil/pandoc-crossref/blob/master/docs/index.md). > > To answer the technical part of the question, `pandoc -t native <<< 'See > the [Quick introduction].'` shows that "[Quick introduction]" is parsed as > a normal string. You can create a span instead by adding a class: [Quick > introduction]{.sectionref}. But even then, it will be simplier to parse its > content if it is limited to one string (like "Quick-introduction"). > > Le Wednesday 22 December 2021 à 01:16:01AM, be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org a > écrit : > > Hi, > > > > I am trying to make a Lua filter that will replace the normal link text > in > > internal links with section numbers. I want to use internal links in my > > markdown document like this: > > > > See the [Quick introduction]. > > > > So, the links are given by the full title of the respective section they > refer > > to. I found a recipe at stackoverflow ( > https://stackoverflow.com/questions/ > > 54128461/how-to-use-latex-section-numbers-in-pandoc-cross-reference) > which does > > this if the link is given like this: > > > > See the [](#quick-introduction) > > > > This is the Lua code: > > > > local make_sections = (require 'pandoc.utils').make_sections > > local section_numbers = {} > > > > function populate_section_numbers (doc) > > function populate (elements) > > for _, el in pairs(elements) do > > if el.t == 'Div' and el.attributes.number then > > section_numbers['#' .. el.attr.identifier] = el.attributes.number > > populate(el.content) > > end > > end > > end > > populate(make_sections(true, nil, doc.blocks)) > > end > > > > function resolve_section_ref (link) > > if #link.content > 0 or link.target:sub(1, 1) ~= '#' then > > return nil > > end > > local section_number = pandoc.Str(section_numbers[link.target]) > > return pandoc.Link({section_number}, link.target, link.title, link.attr) > > end > > > > return { > > {Pandoc = populate_section_numbers}, > > {Link = resolve_section_ref} > > } > > > > > > > > While I do understand what it does, I cannot find out how to change it > to my > > case. How can I retrieve the part written in [] instead of the > attributes when > > scanning the document for those internal links? Or is the not even > possible? > > > > Any idea is appreciated. > > > > > > Torsten > > > > -- > > 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 [1]pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > > To view this discussion on the web visit [2] > https://groups.google.com/d/msgid/ > > pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com. > > > > References: > > > > [1] mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > > [2] > https://groups.google.com/d/msgid/pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com?utm_medium=email&utm_source=footer > > -- 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/c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 6949 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
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* Re: Lua filter for section numbers in internal references [not found] ` <c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> @ 2021-12-22 13:46 ` Bastien DUMONT 0 siblings, 0 replies; 7+ messages in thread From: Bastien DUMONT @ 2021-12-22 13:46 UTC (permalink / raw) To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw Have you looked at this? https://pandoc.org/lua-filters.html#type-div Le Wednesday 22 December 2021 à 04:12:29AM, be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org a écrit : > Thanks for your ideas. I had considered pandoc-crossref also but didn't want to > introduce a new dependency without a real need. If it can be accomplished using > a simple and small Lua filter, I would prefer this. > > I also observed that the native output creates a normal string. However, using > Pandoc's make_section function, the references are delivered as DIVs with a > number attribute. This is easy to process. I just need access to the text > string inside the square brackets. So, how to access the text within a DIV? I > think this is the thing I need to know ... > > On Wednesday, December 22, 2021 at 12:13:38 PM UTC+1 Bastien Dumont wrote: > > It seems that you can use pandoc-crossref for such case: see the manual > here ([1]https://github.com/lierdakil/pandoc-crossref/blob/master/docs/ > index.md). > > To answer the technical part of the question, `pandoc -t native <<< 'See > the [Quick introduction].'` shows that "[Quick introduction]" is parsed as > a normal string. You can create a span instead by adding a class: [Quick > introduction]{.sectionref}. But even then, it will be simplier to parse its > content if it is limited to one string (like "Quick-introduction"). > > Le Wednesday 22 December 2021 à 01:16:01AM, be...@typoscriptics.de a écrit > : > > Hi, > > > > I am trying to make a Lua filter that will replace the normal link text > in > > internal links with section numbers. I want to use internal links in my > > markdown document like this: > > > > See the [Quick introduction]. > > > > So, the links are given by the full title of the respective section they > refer > > to. I found a recipe at stackoverflow ([2]https://stackoverflow.com/ > questions/ > > 54128461/how-to-use-latex-section-numbers-in-pandoc-cross-reference) > which does > > this if the link is given like this: > > > > See the [](#quick-introduction) > > > > This is the Lua code: > > > > local make_sections = (require 'pandoc.utils').make_sections > > local section_numbers = {} > > > > function populate_section_numbers (doc) > > function populate (elements) > > for _, el in pairs(elements) do > > if el.t == 'Div' and el.attributes.number then > > section_numbers['#' .. el.attr.identifier] = el.attributes.number > > populate(el.content) > > end > > end > > end > > populate(make_sections(true, nil, doc.blocks)) > > end > > > > function resolve_section_ref (link) > > if #link.content > 0 or link.target:sub(1, 1) ~= '#' then > > return nil > > end > > local section_number = pandoc.Str(section_numbers[link.target]) > > return pandoc.Link({section_number}, link.target, link.title, link.attr) > > end > > > > return { > > {Pandoc = populate_section_numbers}, > > {Link = resolve_section_ref} > > } > > > > > > > > While I do understand what it does, I cannot find out how to change it to > my > > case. How can I retrieve the part written in [] instead of the attributes > when > > scanning the document for those internal links? Or is the not even > possible? > > > > Any idea is appreciated. > > > > > > Torsten > > > > -- > > 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 [1]pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > > To view this discussion on the web visit [2][3]https://groups.google.com/ > d/msgid/ > > pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%[4] > 40googlegroups.com. > > > > References: > > > > [1] mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > > [2] [5]https://groups.google.com/d/msgid/pandoc-discuss/ > 186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com?utm_medium=email& > utm_source=footer > > > -- > 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 [6]pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > To view this discussion on the web visit [7]https://groups.google.com/d/msgid/ > pandoc-discuss/c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n%40googlegroups.com. > > References: > > [1] https://github.com/lierdakil/pandoc-crossref/blob/master/docs/index.md > [2] https://stackoverflow.com/questions/ > [3] https://groups.google.com/d/msgid/ > [4] http://40googlegroups.com/ > [5] https://groups.google.com/d/msgid/pandoc-discuss/186dfc25-8ebd-43ef-8a5b-0fae22106712n%40googlegroups.com?utm_medium=email&utm_source=footer > [6] mailto:pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org > [7] https://groups.google.com/d/msgid/pandoc-discuss/c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n%40googlegroups.com?utm_medium=email&utm_source=footer -- 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/YcMsUFst47Y3iiza%40localhost. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Lua filter for section numbers in internal references [not found] ` <186dfc25-8ebd-43ef-8a5b-0fae22106712n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2021-12-22 11:12 ` Bastien DUMONT @ 2021-12-22 14:53 ` Albert Krewinkel [not found] ` <87sfukn12g.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org> 1 sibling, 1 reply; 7+ messages in thread From: Albert Krewinkel @ 2021-12-22 14:53 UTC (permalink / raw) To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org <berg-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org> writes: > I am trying to make a Lua filter that will replace the normal link text in > internal links with section numbers. I want to use internal links in my > markdown document like this: > > See the [Quick introduction]. > > So, the links are given by the full title of the respective section they > refer to. Here's a quick rewrite of my old code that should do it. If there are internal links that should not be modified, simply add a title or a class to that link, and the filter will leave it alone. ``` lua local sections = {} function populate_section_numbers (doc) function populate (blocks) for _, div in pairs(blocks) do if div.t == 'Div' and div.attributes.number then local header = div.content[1] if header and header.t == 'Header' then sections['#' .. div.attr.identifier] = { number = div.attributes.number, } populate(div.content) end end end end populate(pandoc.utils.make_sections(true, nil, doc.blocks)) end function resolve_section_ref (link) -- don't edit non-internal links or those with a title or a class. if link.target:sub(1, 1) ~= '#' or #link.classes > 0 or #link.title > 0 then return nil end local section = sections[link.target] if section then link.content = {pandoc.Str(section.number .. '\u{A0}')} .. link.content return link end end return { {Pandoc = populate_section_numbers}, {Link = resolve_section_ref} } ``` -- Albert Krewinkel GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124 ^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <87sfukn12g.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>]
* Re: Lua filter for section numbers in internal references [not found] ` <87sfukn12g.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org> @ 2021-12-23 6:59 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 0 siblings, 0 replies; 7+ messages in thread From: be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org @ 2021-12-23 6:59 UTC (permalink / raw) To: pandoc-discuss [-- Attachment #1.1: Type: text/plain, Size: 2359 bytes --] Wow, thanks for that Albert! I wasn't aware that it was your code on stackoverflow. I yet need to understand what it does exactly but I see the key thing is obviously to look at div.content[1] in order to get the link title. On Wednesday, December 22, 2021 at 3:53:21 PM UTC+1 Albert Krewinkel wrote: > be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org <be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org> writes: > > > I am trying to make a Lua filter that will replace the normal link text > in > > internal links with section numbers. I want to use internal links in my > > markdown document like this: > > > > See the [Quick introduction]. > > > > So, the links are given by the full title of the respective section they > > refer to. > > Here's a quick rewrite of my old code that should do it. > If there are internal links that should not be modified, simply add a > title or a class to that link, and the filter will leave it alone. > > ``` lua > local sections = {} > > function populate_section_numbers (doc) > function populate (blocks) > for _, div in pairs(blocks) do > if div.t == 'Div' and div.attributes.number then > local header = div.content[1] > if header and header.t == 'Header' then > sections['#' .. div.attr.identifier] = { > number = div.attributes.number, > } > populate(div.content) > end > end > end > end > populate(pandoc.utils.make_sections(true, nil, doc.blocks)) > end > > function resolve_section_ref (link) > -- don't edit non-internal links or those with a title or a class. > if link.target:sub(1, 1) ~= '#' or #link.classes > 0 or #link.title > 0 > then > return nil > end > local section = sections[link.target] > if section then > link.content = {pandoc.Str(section.number .. '\u{A0}')} .. link.content > return link > end > end > > return { > {Pandoc = populate_section_numbers}, > {Link = resolve_section_ref} > } > ``` > > > -- > Albert Krewinkel > GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124 > -- 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/d7ed1a43-0312-408d-a08a-94d1988837een%40googlegroups.com. [-- Attachment #1.2: Type: text/html, Size: 3327 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-12-23 6:59 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-12-22 9:16 Lua filter for section numbers in internal references be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org [not found] ` <186dfc25-8ebd-43ef-8a5b-0fae22106712n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2021-12-22 11:12 ` Bastien DUMONT 2021-12-22 12:07 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org 2021-12-22 12:12 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org [not found] ` <c8df6f45-5119-4d7c-b95c-ce1ecfc57a64n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 2021-12-22 13:46 ` Bastien DUMONT 2021-12-22 14:53 ` Albert Krewinkel [not found] ` <87sfukn12g.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org> 2021-12-23 6:59 ` be...-GbY3e145aRm8w6eVIr4Tmg@public.gmane.org
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