Added other sources for component configuration (#53)
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Shadman
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README.md
24
README.md
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@ -157,6 +157,30 @@ lualine.sections.lualine_a = { hello }
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</details>
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<details>
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<summary><b>Using vim functions as lualine component</b></summary>
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You can use vim functions as a lualine component
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```
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lualine.sections.lualine_b = { 'FugitiveHead' }
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```
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</details>
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<details>
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<summary><b>Using variables as lualine component</b></summary>
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You can use variables from vim and lua globals as a lualine component
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Variables from g:, v:, t:, w:, b:, o, go:, vo:, to:, wo:, bo: scopes
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can be used. Scopes ending with o are options usualy accessed with `&` in vimscript
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```
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lualine.sections.lualine_b = { 'g:coc_status', 'bo:filetype' }
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```
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</details>
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### Loading plugin extensions
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Lualine extensions change statusline appearance for a window/buffer with a plugin loaded e.g. [junegunn/fzf.vim](https://github.com/junegunn/fzf.vim)
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@ -34,10 +34,11 @@ CONTENTS *lualline-contents*
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1.3.2. Setting a theme.........................|lualine-setting_a_theme|
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1.3.3. Changing separator...................|lualine-changing_separator|
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1.3.4. Changing components.................|lualine-changing_components|
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1.3.5. Loading plugin extensions.....|lualine-loading_plugin_extensions|
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1.3.6 Config examples.........................|lualine-config_examples|
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1.3.6.1. Packer.nvim......|lualine-config_example_using_packer.nvim|
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1.3.6.2 VIML example.......|lualine-full_config_example_inside_viml|
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1.3.5. Building Custom components............|lualine-custom_components|
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1.3.6. Loading plugin extensions.....|lualine-loading_plugin_extensions|
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1.3.7 Config examples.........................|lualine-config_examples|
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1.3.7.1. Packer.nvim......|lualine-config_example_using_packer.nvim|
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1.3.7.2 VIML example.......|lualine-full_config_example_inside_viml|
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1.4. Contributing.....................................|lualine-contributing|
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1.5. Screenshots.......................................|lualine-screenshots|
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@ -162,6 +163,8 @@ Available components~
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* signify
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--------------------------------------------------------------------------------
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BUILDING YOUR COMPONENTS *lualine-custom_components*
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Using custom functions as lualine component~
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@ -173,6 +176,25 @@ You can define a custom function as a lualine component
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end
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lualine.sections.lualine_a = { hello }
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<
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Using vim functions as lualine component~
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You can use vim functions as a lualine component
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>
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lualine.sections.lualine_b = { 'FugitiveHead' }
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<
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Using variables as lualine component~
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You can use variables from vim and lua globals as a lualine component
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Variables from g:, v:, t:, w:, b:, o, go:, vo:, to:, wo:, bo: scopes
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can be used. Scopes ending with o are options usualy accessed with `&` in vimscript
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>
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lualine.sections.lualine_b = { 'g:coc_status', 'bo:filetype' }
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lualine.sections.lualine_x = { 'vim.bo.fileencoding' }
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<
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--------------------------------------------------------------------------------
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LOADING PLUGIN EXTENSIONS *lualine-loading_plugin_extensions*
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2
doc/tags
2
doc/tags
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@ -4,10 +4,12 @@ lualine-changing_separator lualine.txt /*lualine-changing_separator*
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lualine-config_example_using_packer.nvim lualine.txt /*lualine-config_example_using_packer.nvim*
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lualine-config_examples lualine.txt /*lualine-config_examples*
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lualine-contributing lualine.txt /*lualine-contributing*
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lualine-custom_components lualine.txt /*lualine-custom_components*
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lualine-full_config_example_inside_viml lualine.txt /*lualine-full_config_example_inside_viml*
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lualine-installation lualine.txt /*lualine-installation*
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lualine-loading_plugin_extensions lualine.txt /*lualine-loading_plugin_extensions*
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lualine-lualine.nvim lualine.txt /*lualine-lualine.nvim*
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lualine-nvim lualine.txt /*lualine-nvim*
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lualine-packer.nvim lualine.txt /*lualine-packer.nvim*
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lualine-performance_comparism lualine.txt /*lualine-performance_comparism*
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lualine-screenshots lualine.txt /*lualine-screenshots*
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@ -29,12 +29,52 @@ M.inactive_sections = {
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M.extensions = {
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}
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local function load_special_components(component)
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return function()
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-- precedence lualine_component > vim_var > lua_var > vim_function
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if component:find('[gvtwb]?o?:') == 1 then
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-- vim veriable 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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-- For some reason overwriting component var from outer scope causes the
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-- component not to work . So creating a new local name component to use:/
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local component = component:sub(#scope + 2, #component)
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-- Displays nothing when veriable aren't present
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local return_val = vim[scope][component]
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if return_val == nil then return '' end
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local ok
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ok, return_val = pcall(tostring, return_val)
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if ok then return return_val end
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return ''
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elseif loadstring(string.format('return %s ~= nil', component)) and
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loadstring(string.format([[return %s ~= nil]], component))() then
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-- lua veriable component
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return loadstring(string.format([[
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local ok, return_val = pcall(tostring, %s)
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if ok then return return_val end
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return '']], component))()
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else
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-- vim function component
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local ok, return_val = pcall(vim.fn[component])
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if not ok then return '' end -- function call failed
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ok, return_val = pcall(tostring, return_val)
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if ok then return return_val else return '' end
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end
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end
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end
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local function load_components()
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local function load_sections(sections)
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for _, section in pairs(sections) do
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for index, component in pairs(section) do
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if type(component) == 'string' then
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section[index] = require('lualine.components.' .. component)
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local ok,loaded_component = pcall(require, 'lualine.components.' .. component)
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if not ok then
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loaded_component = load_special_components(component)
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end
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section[index] = loaded_component
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end
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end
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end
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