From 010d2f096ef3dd7b8b18c9127cf404f4dccd90be Mon Sep 17 00:00:00 2001
From: Oscar Wallberg <oscar.wallberg@outlook.com>
Date: Thu, 16 Oct 2025 03:33:32 +0200
Subject: [PATCH] feat: improve quickfixlist window

---
 lua/core/autocommands.lua | 39 +++++++++++++++++++++++++++++++
 lua/core/mappings.lua     |  3 +++
 lua/core/options.lua      | 49 +++++++++++++++++++++++++++++++++++++--
 syntax/qf.vim             | 29 +++++++++++++++++++++++
 4 files changed, 118 insertions(+), 2 deletions(-)
 create mode 100644 syntax/qf.vim

diff --git a/lua/core/autocommands.lua b/lua/core/autocommands.lua
index 30bae29..df7158e 100644
--- a/lua/core/autocommands.lua
+++ b/lua/core/autocommands.lua
@@ -1,3 +1,42 @@
+vim.fn.sign_define("QfError", { text = "E", texthl = "DiagnosticError" })
+vim.fn.sign_define("QfWarn", { text = "W", texthl = "DiagnosticWarn" })
+vim.fn.sign_define("QfInfo", { text = "I", texthl = "DiagnosticInfo" })
+vim.fn.sign_define("QfNote", { text = "N", texthl = "DiagnosticHint" })
+
+vim.api.nvim_create_autocmd("FileType", {
+    desc = "Add signs to quickfix entries",
+    pattern = "qf",
+    callback = function(event)
+        vim.fn.sign_unplace("quickfix_signs")
+        local qflist = vim.fn.getqflist()
+        require("log").debug(vim.inspect(qflist))
+        for i, item in ipairs(qflist) do
+            if item.valid == 1 then
+                local sign_name = nil
+                if item.type == "E" then
+                    sign_name = "QfError"
+                elseif item.type == "W" then
+                    sign_name = "QfWarn"
+                elseif item.type == "I" then
+                    sign_name = "QfInfo"
+                elseif item.type == "N" then
+                    sign_name = "QfNote"
+                end
+
+                if sign_name then
+                    vim.fn.sign_place(
+                        0,
+                        "quickfix_signs",
+                        sign_name,
+                        event.buf,
+                        { lnum = i }
+                    )
+                end
+            end
+        end
+    end,
+})
+
 vim.api.nvim_create_autocmd("FileType", {
     pattern = "help",
     callback = function()
diff --git a/lua/core/mappings.lua b/lua/core/mappings.lua
index c7ee999..d1dc43c 100644
--- a/lua/core/mappings.lua
+++ b/lua/core/mappings.lua
@@ -146,6 +146,9 @@ vim.keymap.set("n", "<Leader>r", function()
     end
 end)
 
+vim.keymap.set("n", "]c", ":cn<CR>")
+vim.keymap.set("n", "[c", ":cp<CR>")
+
 -- Default bindings that are good to know:
 -- insert mode:
 --  <C-T>           - indent, see :h i_CTRL-T
diff --git a/lua/core/options.lua b/lua/core/options.lua
index 01e37b3..01fa4b1 100644
--- a/lua/core/options.lua
+++ b/lua/core/options.lua
@@ -149,5 +149,50 @@ vim.opt.statusline = " %{expand('%:.')}%4( %m%) %{%v:lua._status_line_git()%} %=
     .. " %{&filetype}  %-6.6{&fileencoding}"
     .. " %-4.4{&fileformat} %4.4(%p%%%)%6.6l:%-3.3v"
 
-vim.cmd("syntax on")
-vim.cmd("filetype plugin indent on")
+function _G._quickfix_text_func(info)
+    local items
+    if info.quickfix == 1 then
+        items = vim.fn.getqflist({ id = info.id, items = 1 }).items
+    else
+        items = vim.fn.getloclist(info.winid, { id = info.id, items = 1 }).items
+    end
+
+    local lines = {}
+    for i = info.start_idx, info.end_idx do
+        local item = items[i]
+        local line = ""
+
+        local name = ""
+        if item.bufnr ~= 0 then
+            name = vim.fn.bufname(item.bufnr)
+        end
+        if vim.fn.strchars(name) == 0 then
+            name = "  "
+        end
+        line = line .. name
+
+        if item.lnum > 0 then
+            line = line .. ":" .. item.lnum
+            if item.col > 0 then
+                line = line .. ":" .. item.col
+            end
+            line = line .. ": "
+        end
+
+        line = line .. item.text
+        table.insert(lines, line)
+    end
+
+    return lines
+end
+
+vim.cmd [[
+    syntax on
+    filetype plugin indent on
+
+    function! QuickfixTextFunc(info) abort
+        return v:lua._quickfix_text_func(a:info)
+    endfunction
+
+    set quickfixtextfunc=QuickfixTextFunc
+]]
diff --git a/syntax/qf.vim b/syntax/qf.vim
new file mode 100644
index 0000000..301d852
--- /dev/null
+++ b/syntax/qf.vim
@@ -0,0 +1,29 @@
+if exists("b:current_syntax")
+  finish
+endif
+
+syntax clear
+
+" syntax match qfError  "\c\<error\>:\@="
+" syntax match qfWarn   "\c\<warn\(ing\)\?\>:\@="
+" syntax match qfInfo   "\c\<info\>:\@="
+" syntax match qfNote   "\c\<\(note\|hint\)\>:\@="
+" syntax match qfPassed "\c\<\(ok\|passed\)\>"
+" syntax match qfFailed "\c\<\fail\(ed\|ure\)\?s\?\>"
+
+syntax match qfFileName     "^[^: ]*"                       nextgroup=qfLineCol
+syntax match qfLineCol      ":\(\d\+:\)\{,2} "  contained
+
+highlight default link  qfFileName      Directory
+highlight default link  qfLineCol       Delimiter
+highlight default link  qfError         DiagnosticError
+highlight default link  qfWarn          DiagnosticWarn
+highlight default link  qfInfo          DiagnosticInfo
+highlight default link  qfNote          DiagnosticHint
+highlight default link  qfPassed        DiagnosticOk
+highlight default link  qfFailed        DiagnosticError
+
+highlight clear         QuickFixLine
+highlight               QuickFixLine    gui=underline
+
+let b:current_syntax = "qf"