From ba0073caeb5608106313b24b3fa2f22b2ec1a30b Mon Sep 17 00:00:00 2001
From: Oscar Creator <oscar.creator13@gmail.com>
Date: Sun, 25 Jun 2023 15:10:33 +0200
Subject: [PATCH] ctags filtering with grep or rg and normalize path

---
 lua/telescope/builtin/__files.lua |  5 +++--
 lua/telescope/make_entry.lua      | 13 +++----------
 2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/lua/telescope/builtin/__files.lua b/lua/telescope/builtin/__files.lua
index 15c40f2..733a4b5 100644
--- a/lua/telescope/builtin/__files.lua
+++ b/lua/telescope/builtin/__files.lua
@@ -529,11 +529,12 @@ files.current_buffer_fuzzy_find = function(opts)
 end
 
 files.tags = function(opts)
+  -- find lines not matching tags file format (begins with !) or empty lines.
   local tags_command = (function()
     if 1 == vim.fn.executable "rg" then
-      return { "rg", "-H", "-N", "--no-heading", "--color", "never", "^" }
+      return { "rg", "-H", "-N", "--no-heading", "--color", "never", "-v", "^!|^$" }
     elseif 1 == vim.fn.executable "grep" then
-      return { "grep", "-H", "--color=never", "^"}
+      return { "grep", "-H", "--color=never", "-v", "^!\\|^$"}
     end
   end)()
 
diff --git a/lua/telescope/make_entry.lua b/lua/telescope/make_entry.lua
index 444e91c..fdb04dc 100644
--- a/lua/telescope/make_entry.lua
+++ b/lua/telescope/make_entry.lua
@@ -1086,17 +1086,10 @@ function make_entry.gen_from_ctags(opts)
 
   local current_file_cache = {}
   return function(line)
-    if line == "" then
-      return nil
-    end
     local tag_file
+    -- split line by ':'
     tag_file, line = string.match(line, '([^:]+):(.+)')
 
-    -- do not include tag file format
-    if line:sub(1, 1) == "!" then
-      return nil
-    end
-
     local tag, file, scode, lnum
     -- ctags gives us: 'tags\tfile\tsource'
     tag, file, scode = string.match(line, '([^\t]+)\t([^\t]+)\t/^?\t?(.*)/;"\t+.*')
@@ -1107,8 +1100,8 @@ function make_entry.gen_from_ctags(opts)
 
     -- append tag file path
     if vim.opt.tagrelative:get() then
-      local tag_path = Path:new(tag_file):parent():make_relative(cwd)
-      file = tag_path .. "/" .. file
+      local tag_path = Path:new(tag_file):parent()
+      file = Path:new(tag_path .. "/" .. file):normalize(cwd)
     end
 
     if Path.path.sep == "\\" then