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Add setup option for custom markdown filetypes #32

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Add setup option for custom markdown filetypes #32

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01e33b6
Add ft option
ddxtanx Aug 21, 2026
94c9f47
Include ft in readme and add comma for style
ddxtanx Aug 21, 2026
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3 changes: 3 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,9 @@ require("markdown_preview").setup({
on_start = nil, -- fun(url: string)|nil — called after preview starts
on_stop = nil, -- fun()|nil — called after preview stops
},

-- Table of filetypes to consider as markdown, e.g. for custom literate markdown files
ft = { "markdown" },
})
```

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9 changes: 8 additions & 1 deletion lua/markdown_preview/init.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,9 @@ M.config = {
-- fun()|nil — called after preview stops
on_stop = nil,
},

-- Table of filetypes to consider as markdown, e.g. for custom literate markdown files
ft = { "markdown" },
}

function M.setup(opts)
Expand Down Expand Up @@ -341,7 +344,11 @@ end
local function get_content(bufnr)
local text
local ft = vim.bo[bufnr].filetype
if ft == "markdown" then
local ft_bool_table = {}
for _, value in pairs(M.config.ft) do
ft_bool_table[value] = true
end
if ft_bool_table[ft] then
local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
text = table.concat(lines, "\n")
elseif vim.api.nvim_buf_get_name(bufnr):match("%.mmd$")
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