diff options
Diffstat (limited to 'dot_config/nvim/ftplugin/markdown_quote.fnl')
| -rw-r--r-- | dot_config/nvim/ftplugin/markdown_quote.fnl | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/dot_config/nvim/ftplugin/markdown_quote.fnl b/dot_config/nvim/ftplugin/markdown_quote.fnl new file mode 100644 index 0000000..a75c966 --- /dev/null +++ b/dot_config/nvim/ftplugin/markdown_quote.fnl @@ -0,0 +1,57 @@ +(local buf 0) ; operate on the current buffer on load + +(fn location [opts] + "Mutate or create ops. + Line1 is the start of the selection, and Line2 is the end." + (let [sl (or (?. opts :line1) (vim.fn.line :v)) + el (or (?. opts :line2) (vim.fn.line :.)) + swap (> sl el)] + (if swap + {:line1 (- 1 el) + :line2 sl} + {:line1 (- 1 sl) + :line2 el}))) + +(fn maplines [f] + "Returns a transducer that will map the selection's lines with f." + (fn [opts] + (let [opts (location opts) + argp #(partial $1 buf opts.line1 opts.line2 true) + setl (argp vim.api.nvim_buf_set_lines) + getl (argp vim.api.nvim_buf_get_lines)] + (setl (icollect [_ v (ipairs (getl))] + (f v)))))) + +(let [+qf #(case $ + ; empty lines don't get quoted + "" $ + + ; unless there's already whitespace or an existing quote in front, + ; we'll want to prepend ">" *and* a space + ; this is the "unless" case + (where s (s:match "^[%s>]")) + (.. :> s) + + s + (.. "> " s)) + -qf #(case $ + ; if the line starts with a "> " we remove both + ; since it's no longer a quote at all + (where s (s:match "^> ")) + (s:sub 3) + + ; else, we're just removing the ">" (a single quote level) + (where s (s:match :^>)) + (s:sub 2) + + _ $) + +quote (maplines +qf) + -quote (maplines -qf)] + (vim.api.nvim_buf_create_user_command buf :MdQuote +quote { :range true}) + (vim.api.nvim_buf_create_user_command buf :MdDeQuote -quote { :range true}) + (vim.keymap.set [:n :x] :> +quote + {:buffer true + :desc "increase quote level of selection"}) + (vim.keymap.set [:n :x] :< -quote + {:buffer true + :desc "decrease quote level of selection"})) |