From 805c03609f83a8e33122fa85033af45a14a3bdab Mon Sep 17 00:00:00 2001
From: Eric Wong <wsdjeg@outlook.com>
Date: Wed, 1 Jan 2025 20:34:26 +0800
Subject: [PATCH] feat(quickfix): add quickfix.nvim

---
 autoload/SpaceVim/layers/core.vim        |  8 +++
 bundle/quickfix.nvim/README.md           |  0
 bundle/quickfix.nvim/lua/quickfix.lua    | 79 ++++++++++++++++++++++++
 bundle/quickfix.nvim/plugin/quickfix.lua |  9 +++
 4 files changed, 96 insertions(+)
 create mode 100644 bundle/quickfix.nvim/README.md
 create mode 100644 bundle/quickfix.nvim/lua/quickfix.lua
 create mode 100644 bundle/quickfix.nvim/plugin/quickfix.lua

diff --git a/autoload/SpaceVim/layers/core.vim b/autoload/SpaceVim/layers/core.vim
index 3e3d96fc1..98d7be2a2 100644
--- a/autoload/SpaceVim/layers/core.vim
+++ b/autoload/SpaceVim/layers/core.vim
@@ -152,6 +152,7 @@ endif
 
 let s:enable_smooth_scrolling = 1
 let s:enable_netrw = 0
+let s:enable_quickfix_key_bindings = 0
 
 let g:_spacevim_enable_filetree_gitstatus = 0
 let g:_spacevim_enable_filetree_filetypeicon = 0
@@ -238,6 +239,10 @@ function! SpaceVim#layers#core#plugins() abort
         \}])
   call add(plugins, [g:_spacevim_root_dir . 'bundle/vim-grepper' ,              { 'on_cmd' : 'Grepper',
         \ 'loadconf' : 1} ])
+
+  if s:enable_quickfix_key_bindings
+    call add(plugins, [g:_spacevim_root_dir . 'bundle/quickfix.nvim' ,              { 'merged' : 0} ])
+  endif
   return plugins
 endfunction
 
@@ -1213,6 +1218,9 @@ function! SpaceVim#layers#core#set_variable(var) abort
   let s:enable_netrw = get(a:var,
         \ 'enable_netrw',
         \ 0)
+  let s:enable_quickfix_key_bindings = get(a:var,
+        \ 'enable_quickfix_key_bindings',
+        \ s:enable_quickfix_key_bindings)
 endfunction
 
 function! s:defx_find_current_file() abort
diff --git a/bundle/quickfix.nvim/README.md b/bundle/quickfix.nvim/README.md
new file mode 100644
index 000000000..e69de29bb
diff --git a/bundle/quickfix.nvim/lua/quickfix.lua b/bundle/quickfix.nvim/lua/quickfix.lua
new file mode 100644
index 000000000..b5ccecedb
--- /dev/null
+++ b/bundle/quickfix.nvim/lua/quickfix.lua
@@ -0,0 +1,79 @@
+--=============================================================================
+-- qf.lua
+-- Copyright 2025 Eric Wong
+-- Author: Eric Wong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local M = {}
+
+M.setup = function()
+  local group = vim.api.nvim_create_augroup('quickfix_mapping', {
+    clear = true,
+  })
+
+  vim.api.nvim_create_autocmd({ 'FileType' }, {
+    pattern = 'qf',
+    group = group,
+    callback = function(ev)
+      vim.keymap.set('n', 'dd', function()
+        local qflist = vim.fn.getqflist()
+        local line = vim.fn.line('.')
+        table.remove(qflist, line)
+        vim.fn.setqflist(qflist)
+        vim.cmd(tostring(line))
+      end, { buffer = ev.buf })
+    end,
+  })
+
+  local function table_remove(t, from, to)
+    local rst = {}
+    for i = 1, #t, 1 do
+      if i < from or i > to then
+        rst[#rst + 1] = t[i]
+      end
+    end
+    return rst
+  end
+
+  vim.api.nvim_create_autocmd({ 'FileType' }, {
+    pattern = 'qf',
+    group = group,
+    callback = function(ev)
+      vim.keymap.set('v', 'd', function()
+        local esc = vim.api.nvim_replace_termcodes('<esc>', true, false, true)
+        vim.api.nvim_feedkeys(esc, 'x', false)
+        local qflist = vim.fn.getqflist()
+        local from = vim.fn.getpos("'<")[2]
+        local to = vim.fn.getpos("'>")[2]
+        if from > to then
+          from, to = to, from
+        end
+        qflist = table_remove(qflist, from, to)
+        vim.fn.setqflist(qflist)
+        vim.cmd(tostring(from))
+      end, { buffer = ev.buf })
+    end,
+  })
+  vim.api.nvim_create_autocmd({ 'FileType' }, {
+    pattern = 'qf',
+    group = group,
+    callback = function(ev)
+      vim.keymap.set('n', 'c', function()
+        local input_pattern = vim.fn.input('filter pattern:')
+        -- vim.cmd('noautocmd normal! :')
+        local re = vim.regex(input_pattern)
+        local qf = {}
+        for _, item in ipairs(vim.fn.getqflist()) do
+          if not re:match_str(vim.fn.bufname(item.bufnr)) then
+            table.insert(qf, item)
+          end
+        end
+        vim.fn.setqflist(qf)
+      end, { buffer = ev.buf })
+    end,
+  })
+end
+
+return M
diff --git a/bundle/quickfix.nvim/plugin/quickfix.lua b/bundle/quickfix.nvim/plugin/quickfix.lua
new file mode 100644
index 000000000..af670c1a3
--- /dev/null
+++ b/bundle/quickfix.nvim/plugin/quickfix.lua
@@ -0,0 +1,9 @@
+--=============================================================================
+-- quickfix.lua
+-- Copyright 2025 Eric Wong
+-- Author: Eric Wong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+require('quickfix').setup()