36 lines
1.0 KiB
Lua
36 lines
1.0 KiB
Lua
-- Copyright (c) 2020-2021 shadmansaleh
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-- MIT license, see LICENSE for more details.
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local M = require('lualine.component'):extend()
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function M:update_status()
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local component = self.options[1]
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-- vim variable component
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-- accepts g:, v:, t:, w:, b:, o, go:, vo:, to:, wo:, bo:
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-- filters g portion from g:var
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local scope = component:match('[gvtwb]?o?')
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-- filters var portion from g:var
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local var_name = component:sub(#scope + 2, #component)
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-- Displays nothing when variable aren't present
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if not (scope and var_name) then
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return ''
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end
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-- Support accessing keys within dictionary
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-- https://github.com/nvim-lualine/lualine.nvim/issues/25#issuecomment-907374548
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local name_chunks = vim.split(var_name, '%.')
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local return_val = vim[scope][name_chunks[1]]
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for i = 2, #name_chunks do
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if return_val == nil then
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break
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end
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return_val = return_val[name_chunks[i]]
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end
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if return_val == nil then
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return ''
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end
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local ok
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ok, return_val = pcall(tostring, return_val)
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return ok and return_val or ''
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end
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return M
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