Remove the tab removal script again

replace_non_leading_tabs.lua

@@ -1,87 +0,0 @@
-#!/bin/env luajit
-
--- SPDX-FileCopyrightText: 2024 DS
---
--- SPDX-License-Identifier: Apache-2.0
-
-local function string_width(s)
-	local w = 0
-	for i = 1, #s do
-		if s:sub(i,i) == "\t" then
-			w = w + 4
-		else
-			w = w + 1 -- (just an estimate. works well for most of ascii)
-		end
-	end
-	return w
-end
-
-local path = ...
-assert(path, "No path given")
-
-local file = assert(io.open(path, "r"))
-
-local lines_new = {}
-local in_multiline_comment = false
-
-for line in file:lines() do
-	local line_new = {}
-	local line_new_columns = 0
-	local function add_to_line_new(s)
-		table.insert(line_new, s)
-		line_new_columns = line_new_columns + string_width(s)
-	end
-
-	-- skip leading tabs
-	local i = line:find("[^\t]") or #line + 1
-	add_to_line_new(string.rep("\t", i-1))
-
-	while i <= #line do
-		if in_multiline_comment then
-			local j = line:find("*/", i, true)
-			if j then
-				add_to_line_new(line:sub(i, j+1))
-				in_multiline_comment = false
-				i = j + 2
-			else
-				add_to_line_new(line:sub(i))
-				i = #line + 1
-			end
-		else
-			local j = line:find("\t", i, true) or #line + 1
-			j = math.min(j, line:find("/*", i, true) or #line + 1)
-			j = math.min(j, line:find("//", i, true) or #line + 1)
-			if j ~= #line + 1 then
-				add_to_line_new(line:sub(i, j-1))
-				if line:sub(j, j) == "\t" then
-					add_to_line_new(string.rep(" ", 4 - (line_new_columns % 4)))
-					i = j + 1
-				elseif line:sub(j, j+1) == "/*" then
-					add_to_line_new("/*")
-					in_multiline_comment = true
-					i = j + 2
-				else -- //
-					add_to_line_new(line:sub(j))
-					i = #line + 1
-				end
-			else
-				add_to_line_new(line:sub(i))
-				i = #line + 1
-			end
-		end
-	end
-
-	line_new = table.concat(line_new)
-	table.insert(lines_new, line_new)
-end
-
-file:close()
-
--- new line at end of file
-table.insert(lines_new, "")
-
-lines_new = table.concat(lines_new, "\n")
-
-file = assert(io.open(path, "w"))
-assert(file:write(lines_new))
-file:close()