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d0d4160dd1
- Add runtime/lua/vim/vimhelp.lua, which is a translation of Vim's runtime/import/dist/vimhelp.vim. - Unlike Vim, run the highlighting from an ftplugin file instead of a syntax file, so that it is run even if using treesitter.
32 lines
803 B
Lua
32 lines
803 B
Lua
-- Extra functionality for displaying Vim help.
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local M = {}
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-- Called when editing the doc/syntax.txt file
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function M.highlight_groups()
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local save_cursor = vim.fn.getcurpos()
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local start_lnum = vim.fn.search([[\*highlight-groups\*]], 'c')
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if start_lnum == 0 then
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return
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end
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local end_lnum = vim.fn.search('^======')
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if end_lnum == 0 then
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return
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end
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local ns = vim.api.nvim_create_namespace('vimhelp')
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vim.api.nvim_buf_clear_namespace(0, ns, 0, -1)
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for lnum = start_lnum, end_lnum do
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local word = vim.api.nvim_buf_get_lines(0, lnum - 1, lnum, true)[1]:match('^(%w+)\t')
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if vim.fn.hlexists(word) ~= 0 then
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vim.api.nvim_buf_set_extmark(0, ns, lnum - 1, 0, { end_col = #word, hl_group = word })
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end
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end
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vim.fn.setpos('.', save_cursor)
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end
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return M
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