43 lines
1.4 KiB
Lua
43 lines
1.4 KiB
Lua
-- Pandoc's wikilinks_title_after_pipe extension does basic hyperlinking
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-- of [[bracketed wiki links]]. This lua filter does the rest, mimicking
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-- Obsidian's wiki linking where possible. It makes these adjustments
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-- (to both path and fragment):
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-- - removes problem characters: ' ?
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-- - then removes any leading/trailing spaces
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-- - replaces internal spaces with hyphens
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-- - lower-cases the fragment if any
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-- - adds ".html" to the path when appropriate, while preserving the fragment.
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-- This is not needed on hledger.org, but makes links work when rendered locally.
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--
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-- Current limitations: unlike Obsidian wikilinks,
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-- - these do not find files across folders - correct path is required
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-- - these are not aware of file existence - targets should exist
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-- - these are not case insensitive - link and filename case must match exactly
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function Link(el)
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if el.title == "wikilink" then
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t = el.target
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t = t:gsub("[?']", "")
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t = t:gsub("^ +", "")
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t = t:gsub(" +$", "")
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t = t:gsub(" ", "-")
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t = t .. "#"
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path, frag = t:match("([^#]*)#([^#]*)")
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u = path
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if not (
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path:len() == 0 or
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path:match('%.html$') or
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path:match('%.%.$') or
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path:match('/$')
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) then
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u = u .. ".html"
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end
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if frag:len() > 0 then
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frag = pandoc.text.lower(frag)
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u = u .. "#" .. frag
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end
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el.target = u
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end
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return el
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end
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