61 lines
2.2 KiB
Lua
61 lines
2.2 KiB
Lua
--------------
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-- Handling markup transformation.
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-- Currently just does Markdown, but this is intended to
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-- be the general module for managing other formats as well.
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require 'pl'
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local utils = require 'pl.utils'
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local quit = utils.quit
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local markup = {}
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function markup.create (ldoc, format)
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local ok,markup = pcall(require,format)
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if not ok then quit("cannot load formatter: "..format) end
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return function (txt)
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if txt == nil then return '' end
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-- inline <references> use same lookup as @see
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txt = txt:gsub('<([%w_%.]-)>',function(name)
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local ref = ldoc.module:process_see_reference(name,ldoc.modules)
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if not ref then print("could not find '"..name.."'"); return '' end
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local label = ref.label:gsub('_','\\_')
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local res = ('[%s](%s)'):format(label,ldoc.href(ref))
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return res
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end)
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-- workaround Markdown's need for blank lines around indented blocks
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-- (does mean you have to keep indentation discipline!)
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if txt:find '\n' and not ldoc.classic_markdown then -- multiline text
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local res, append = {}, table.insert
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local last_indent, start_indent, skip = -1, -1, false
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for line in stringx.lines(txt) do
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if not line:match '^%s*$' then --ignore blank lines
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local indent = #line:match '^%s*'
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if start_indent < 0 then -- initialize indents at start
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start_indent = indent
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last_indent = indent
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end
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if indent < start_indent then -- end of indented block
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append(res,'')
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skip = false
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end
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if not skip and indent > last_indent then -- start of indent
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append(res,'')
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skip = true
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start_indent = indent
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end
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append(res,line)
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last_indent = indent
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else
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append(res,'')
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end
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end
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txt = table.concat(res,'\n')
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end
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txt = markup(txt)
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-- We will add our own paragraph tags, if needed.
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return (txt:gsub('^%s*<p>(.+)</p>%s*$','%1'))
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end
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end
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return markup
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