More fixes with the relative paths

README_Amiga.md

@@ -237,11 +237,11 @@ https://git.walkero.gr/walkero/lite-xl/issues
 ### Changed
 - Changed the way the "Open in system" option executes the WBRun command
   in AmigaOS 4, with a more secure way
-- Did a lot of code cleanup in sync with the upstream, and parts that
-  were left over
+- Did a lot of code cleanup in sync with the upstream, and parts of code
+  that were left over
 
 ### Fixed
-- I did a lot of changes on path manipulation and usage, fixing opening
+- I did a lot of changes on path manipulation and usage, fixing scanning
   the root of a partition or an assign path
 - Fixed an error with the codesets plugin, where an empty file could
   not be opened

data/core/common.lua

@@ -533,6 +533,13 @@ local function split_on_slash(s, sep_pattern)
   if s:match("^["..PATHSEP.."]") then
     t[#t + 1] = ""
   end
+  if (PLATFORM == "AmigaOS 4" or PLATFORM == "MorphOS") then
+    local drive = s:match("^([%w%s]*:)")
+    if drive then
+      t[#t + 1] = ""
+      s = s:gsub("^" .. drive, "")
+    end
+  end
   for fragment in string.gmatch(s, "([^"..PATHSEP.."]+)") do
     t[#t + 1] = fragment
   end
@@ -555,6 +562,12 @@ function common.normalize_volume(filename)
       return drive:upper() .. rem
     end
   end
+  if (PLATFORM == "AmigaOS 4" or PLATFORM == "MorphOS") then
+    local drive, rem = filename:match('^([%w%s]*:)(.-)' .. PATHSEP .. '?$')
+    if drive then
+      return drive .. rem
+    end
+  end
   return filename
 end
 
@@ -580,6 +593,11 @@ function common.normalize_path(filename)
         volume, filename = drive, rem
       end
     end
+  elseif (PLATFORM == "AmigaOS 4" or PLATFORM == "MorphOS") then
+    local drive, relpath = filename:match('^([%w%s]*:)(.+)')
+    if relpath then
+      volume, filename = drive, relpath
+    end
   else
     local relpath = filename:match('^/(.+)')
     if relpath then
@@ -619,7 +637,7 @@ end
 ---@param path string The parent path.
 ---@return boolean
 function common.path_belongs_to(filename, path)
-  return string.find(filename, path .. PATHSEP, 1, true) == 1
+  return string.find(filename, common.basepath(path), 1, true) == 1
 end
 
 
@@ -629,6 +647,9 @@ end
 ---@return boolean
 function common.relative_path(ref_dir, dir)
   local drive_pattern = "^(%a):\\"
+  if (PLATFORM == "AmigaOS 4" or PLATFORM == "MorphOS") then
+    drive_pattern = "^([%w%s]*:)"
+  end
   local drive, ref_drive = dir:match(drive_pattern), ref_dir:match(drive_pattern)
   if drive and ref_drive and drive ~= ref_drive then
     -- Windows, different drives, system.absolute_path fails for C:\..\D:\