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https://github.com/amirrezaask/fuzzy.nvim

Fuzzy matching for Neovim
https://github.com/amirrezaask/fuzzy.nvim

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Fuzzy matching for Neovim

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# fuzzy.nvim
Fast, Simple, Powerfull fuzzy finder all in lua.

## Why another fuzzy finder ?
When I started this project the alternatives were fzf.vim which was in vimscript but I needed my fuzzy finder to be completely in Lua, so i started this.
[Demo](https://www.youtube.com/watch?v=YCUSN59FBSY)

# Installation
## Packer.nvim
```lua
use { 'kyazdani42/nvim-web-devicons' } --Optional if you want icons, also you need to have a patched font, look at nvim-web-devicons README for information.
use { 'amirrezaask/fuzzy.nvim', requires={'nvim-lua/plenary.nvim'}}
```

# Terminology:
## Source:
source is either a function that returns a list of data that we are going to search or is simply just a lua table or a string which is a command that it's output will be used as a source.
- table
- function
- string ( system command )

## Sorter
Sorter is a function that gets our query and sorts the source data based on that.
- string_distance: levenshtein string distance, needs no dependency.
- fzy: uses fzy sorting algorithm, needs no dependency.
- fzy_native: uses fzy binary, needs fzy installed.
- fzf_native: uses fzf binary, needs fzf installed.

## Handler
Handler is a function that gets called with the selected_line when you hit `` in the fuzzy window.

## Mappings
You can attach any mappings you want with `mappings` key in fuzzy.new like below
```lua
require('fuzzy').new {
source = ...,
sorter = ...,
mappings = {
[''] = function()
local selected_line = CURRENT_FUZZY:get_output()
-- do anything you want
end
}
}

```
# Customization
## Settings
```lua
require'fuzzy'.setup {
width = 60,
height = 40,
blacklist = {
"vendor"
},
border = 'yes' -- can be 'no' as well
location = loc.bottom_center,
sorter = require'fuzzy.lib.sorter'.fzy -- Also fzf_native, fzy_native, string_distance are supported
prompt = '> ',
register = {
some_custom_function = function() -- This function appears in complete menu when using :Fuzzy command.
end
}
}
```
## Custom Fuzzy usage
let's say you want to define a simple fuzzy search on a simple lua table.
```lua
require'fuzzy'.new {
source = {
'data1', ...
},
handler = function(data)
print(data)
end,
-- Almost all the keys that are supported in setup function are valid here and will override the default one set by user.
}

```

## Extending Fuzzy
You can extend fuzzy.nvim with new features since almost all properties of fuzzy can be changed or even adding new ones,
forexample a preview window using fuzzy.lib tools that you can open with a keymapping.

```lua
require('fuzzy').setup {
... other keys
mappings = {
['P'] = function preview()
local parser = function(line)
local parts = vim.split(line, ':')
return remove_icon(parts[1]), parts[2]
end
local preview_window = function (line)
local floating_buffer = require('fuzzy.lib.floating').floating_buffer
local buf, win, _ = floating_buffer {
height = 50,
width = 50,
location = loc.center,
border = 'no',
}
local file, lnum = parser(line)
require('fuzzy.lib.helpers').open_file_at(file, lnum)
vim.cmd([[ call feedkeys("\") ]])
vim.api.nvim_buf_set_option(0, 'modifiable', false)
end
local line = require('fuzzy').CurrentFuzzy():get_output()
preview_window(line)
end
}
}

```
## Configuration
Fuzzy.nvim uses a 3 layered approach for configuration, based on priority:
1. opts table passed in calling fuzzy.new or any fuzzy function like fuzzy.find_files
2. global user configuration set in fuzzy.setup
3. fuzzy defaults

# Builtin functions
- find_files: find files in recursively
- interactive_file_finder: A simple file browser.
- cd: Change directory of neovim.
- grep: grep a string.
- buffer_lines: search in current buffer lines
- buffers: neovim buffers.
- colors: change neovim colorscheme.
- commands: Run neovim command.
- recent_files: Search through neovim recent files.
- history: Search through neovim commands.
- help: Search through neovim help tags.
- mappings: Search through registered keymappings.
- git_files: List of files in current git repo.
- git_commits: List commits in repo.
- git_bcommits: List of commits happend on current file.
- git_checkout: List of branches to checkout to.
- lsp_document_symbols: List of document symbols from LSP server.
- lsp_workspace_symbols: List of workspace symbols from LSP server.
- lsp_references: List of references to current at point symbol from LSP server.
- lsp_implementations: List of implementations of current at point interface from LSP server.
- lsp_definitions: List or jump to defintions of current symbol.

# Credits
- @tjdevries for awesome streams, plenary and telescope.nvim which I took multiple ideas from.
- @neovim for awesome editor we have.