Filter to put subdivided bibliography in metadata

Filter to put subdivided bibliography in metadata

[denis.maier-NSENcxR/0n0]

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Hi,

I'm currently using the filter below to put references in a special section into the metadata in order to move them to a different location in the template. This works ok for simple cases, i.e. one bibliography under one heading, like so :

```md
# Literatur

A bibliographic reference

Another bibliographic reference
```

However, for a current project I'll need to support subdivided bibliographies. Something like this:

```md
# Bibliography

## Primary sources
A bibliographic reference

Another bibliographic reference

## Scholarly articles
A bibliographic reference

Another bibliographic reference
```

This here would probably be a good result:

```yaml
biblio:
  - title: Primary sources
    references:
      - A bibliographic reference
      - Another bibliographic reference
  - title: Scholarly articles
    references:
      - A bibliographic reference
      - Another bibliographic reference
```

I'm not sure how I should tackle that problem. Any hints?

Best,
Denis

```lua

references = {}

function getRefsFromDiv (div)
    if div.identifier == 'literatur' then
        pandoc.walk_block(div, {
            Para = function(el)
                table.insert(references, el.content)
            end})
        return {} -- remove from main body
    end
end

function addRefsToMeta (meta)
                if not next(references) then
                   return meta
                else
                               meta.biblio = references
                               if not meta.bibliotitle then
                                               if pandoc.utils.stringify(meta['lang']) == 'en'  then
                                                               meta.bibliotitle = "References"
                                               else
                                                               meta.bibliotitle = "Literatur"
                                               end
                               end
                               -- pprint(references)
                               return meta
                end
end

function put_in_divs(doc)
    local blocks = {}
    for i,el in pairs(doc.blocks) do
        table.insert(blocks, el)
    end
    local newblocks = pandoc.utils.make_sections(nil, 1, blocks)
    return pandoc.Pandoc(newblocks, doc.meta)
end

-- Helper functtions for flatten_divs
-- Returns true iff a div is a section div.
local function is_section_div (div)
  return div.t == 'Div'
    and div.classes[1] == 'section'
    and div.attributes.number
end

local function section_header (div)
  local header = div.content and div.content[1]
  local is_header = is_section_div(div)
    and header
    and header.t == 'Header'
  return is_header and header or nil
end

--- Remove remaining section divs
local function flatten_divs (div)
  local header = section_header(div)
  if not header then
    return nil
  else
    header.identifier = div.identifier
    header.attributes.number = nil
    div.content[1] = header
    return div.content
  end
end

return {
    { Pandoc = put_in_divs },
    { Div = getRefsFromDiv },
    { Meta = addRefsToMeta },
    { Div = flatten_divs},
  }
```

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AW: Filter to put subdivided bibliography in metadata

[denis.maier-NSENcxR/0n0]

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Nevermind,

I think I’ve come up with a working solution for my use case. I’ve changed the input to this:

```md
Blabla

# References {sec-type="ref-list"}

## Sources {sec-type="ref-list"}
A reference

Another reference


## Articles {sec-type="ref-list"}
A reference

Another reference
```

My target is JATS XML. As I need to do some post-processing with xslt anyway, I can handle this there with a couple of xslt templates :

```xsl
<xsl:template match="//body/sec[@sec-type = 'ref-list']" mode="rename">
                <ref-list>
                               <xsl:apply-templates/>
                </ref-list>
</xsl:template>

<xsl:template match="//sec[@sec-type = 'ref-list']/sec[@sec-type = 'ref-list']">
                <ref-list>
                               <xsl:apply-templates/>
                </ref-list>
</xsl:template>

<xsl:template match="//sec[@sec-type = 'ref-list']/p">
                <ref>
                               <mixed-citation>
                                               <xsl:apply-templates/>
                               </mixed-citation>
                </ref>
</xsl:template>

<xsl:template match="//body/sec[@sec-type = 'ref-list']"></xsl:template>

<xsl:template match="back">
                <xsl:copy>
                               <xsl:apply-templates select="//body/sec[@sec-type = 'ref-list']" mode="rename"/>
                               <xsl:apply-templates select= "@*|node()"/>
                </xsl:copy>
</xsl:template>
```

Best,
Denis

Von: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im Auftrag von denis.maier-NSENcxR/0n0@public.gmane.org
Gesendet: Mittwoch, 6. April 2022 17:51
An: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Betreff: Filter to put subdivided bibliography in metadata

Hi,

I’m currently using the filter below to put references in a special section into the metadata in order to move them to a different location in the template. This works ok for simple cases, i.e. one bibliography under one heading, like so :

```md
# Literatur

A bibliographic reference

Another bibliographic reference
```

However, for a current project I’ll need to support subdivided bibliographies. Something like this:

```md
# Bibliography

## Primary sources
A bibliographic reference

Another bibliographic reference

## Scholarly articles
A bibliographic reference

Another bibliographic reference
```

This here would probably be a good result:

```yaml
biblio:
  - title: Primary sources
    references:
      - A bibliographic reference
      - Another bibliographic reference
  - title: Scholarly articles
    references:
      - A bibliographic reference
      - Another bibliographic reference
```

I’m not sure how I should tackle that problem. Any hints?

Best,
Denis

```lua

references = {}

function getRefsFromDiv (div)
    if div.identifier == 'literatur' then
        pandoc.walk_block(div, {
            Para = function(el)
                table.insert(references, el.content)
            end})
        return {} -- remove from main body
    end
end

function addRefsToMeta (meta)
                if not next(references) then
                   return meta
                else
                               meta.biblio = references
                               if not meta.bibliotitle then
                                               if pandoc.utils.stringify(meta['lang']) == 'en'  then
                                                               meta.bibliotitle = "References"
                                               else
                                                               meta.bibliotitle = "Literatur"
                                               end
                               end
                               -- pprint(references)
                               return meta
                end
end

function put_in_divs(doc)
    local blocks = {}
    for i,el in pairs(doc.blocks) do
        table.insert(blocks, el)
    end
    local newblocks = pandoc.utils.make_sections(nil, 1, blocks)
    return pandoc.Pandoc(newblocks, doc.meta)
end

-- Helper functtions for flatten_divs
-- Returns true iff a div is a section div.
local function is_section_div (div)
  return div.t == 'Div'
    and div.classes[1] == 'section'
    and div.attributes.number
end

local function section_header (div)
  local header = div.content and div.content[1]
  local is_header = is_section_div(div)
    and header
    and header.t == 'Header'
  return is_header and header or nil
end

--- Remove remaining section divs
local function flatten_divs (div)
  local header = section_header(div)
  if not header then
    return nil
  else
    header.identifier = div.identifier
    header.attributes.number = nil
    div.content[1] = header
    return div.content
  end
end

return {
    { Pandoc = put_in_divs },
    { Div = getRefsFromDiv },
    { Meta = addRefsToMeta },
    { Div = flatten_divs},
  }
```

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