refactor: modify the highlight groups

README.md

@@ -247,13 +247,15 @@ require("quicker").setup({
 
 ## Highlights
 
-These are the highlight groups that are used to style the quickfix buffer. The easiest way to change the styling is to use `:help winhighlight` in the setup `opts` option.
+These are the highlight groups that are used to style the quickfix buffer. You can set these
+highlight groups yourself or use `:help winhighlight` in the setup `opts` option to override them
+for just the quickfix window.
 
 - `QuickFixHeaderHard` - Used for the header that divides results from different files
 - `QuickFixHeaderSoft` - Used for the header that divides results within the same file
 - `Delimiter` - Used for the divider between filename, line number, and text
-- `LineNr` - Used for the line number
-- `Directory` - Used for the filename
+- `QuickFixLineNr` - Used for the line number
+- `QuickFixFilename` - Used for the filename
 - `DiagnosticSign*` - Used for the signs that display the quickfix error type
 
 ## API

lua/quicker/highlight.lua

@@ -164,6 +164,12 @@ function M.set_highlight_groups()
   if vim.tbl_isempty(vim.api.nvim_get_hl(0, { name = "QuickFixHeaderSoft" })) then
     vim.api.nvim_set_hl(0, "QuickFixHeaderSoft", { link = "Comment", default = true })
   end
+  if vim.tbl_isempty(vim.api.nvim_get_hl(0, { name = "QuickFixFilename" })) then
+    vim.api.nvim_set_hl(0, "QuickFixFilename", { link = "Directory", default = true })
+  end
+  if vim.tbl_isempty(vim.api.nvim_get_hl(0, { name = "QuickFixLineNr" })) then
+    vim.api.nvim_set_hl(0, "QuickFixLineNr", { link = "LineNr", default = true })
+  end
 end
 
 return M

lua/quicker/syntax.lua

@@ -6,15 +6,13 @@ function M.set_syntax()
   local v = config.borders.vert
   local cmd = string.format(
     [[
-syn match qfFileName /^[^%s]*/ nextgroup=qfSeparatorLeft
-syn match qfSeparatorLeft /%s/ contained nextgroup=qfLineNr
-syn match qfLineNr /[^%s]*/ contained nextgroup=qfSeparatorRight
+syn match QuickFixFilename /^[^%s]*/ nextgroup=qfSeparatorLeft
+syn match qfSeparatorLeft /%s/ contained nextgroup=QuickFixLineNr
+syn match QuickFixLineNr /[^%s]*/ contained nextgroup=qfSeparatorRight
 syn match qfSeparatorRight '%s' contained
 
-hi def link qfFileName Directory
 hi def link qfSeparatorLeft Delimiter
 hi def link qfSeparatorRight Delimiter
-hi def link qfLineNr LineNr
 ]],
     v,
     v,