ceph/src/civetweb/resources/cleanup.lua

   1 -- Lua script used to clean up tabs and spaces in C, CPP and H files.
   2 -- Copyright (c) 2014, bel
   3 -- MIT License (http://opensource.org/licenses/mit-license.php)
   4 --
   5 -- It can be used from the command line:
   6 -- Call Lua5.1 or Lua5.2 + this script file + the C/CPP/H file to clean
   7 --
   8 -- It can be used in Visual Studio as an external tool:
   9 -- command: Lua5.1.exe or Lua5.2.exe
  10 -- argument: "X:\civetweb\resources\cleanup.lua" $(ItemPath)
  11 --
  12
  13 clean = arg[1]
  14 print("Cleaning " .. clean)
  15
  16 lines = io.lines(clean)
  17 if not lines then
  18     print("Can not open file " .. clean)
  19     return
  20 end
  21
  22 function trimright(s)
  23   return s:match "^(.-)%s*$"
  24 end
  25
  26 local lineend = false
  27 local tabspace = false
  28 local changed = false
  29 local invalid = false
  30 local newfile = {}
  31
  32 lineno = 0
  33 incmt = false
  34
  35 for l in lines do
  36     lineno = lineno + 1
  37     local lt = trimright(l)
  38     if (lt ~= l) then
  39         lineend = true
  40         changed = true
  41     end
  42     local mcmt = l:find("%/%*");
  43     if mcmt then
  44         if incmt then
  45             print("line " .. lineno .. " nested comment")
  46         end
  47         if not (l:sub(mcmt):find("%*%/")) then
  48             -- multiline comment begins here
  49             incmt = true
  50         end
  51     elseif incmt then
  52         if not l:find("^%s*%*") then
  53             print("line " .. lineno .. " multiline comment without leading *")
  54         end
  55         if l:find("%*%/") then
  56             incmt = false
  57         end
  58     else
  59         local cmt = l:find("//")
  60         if (cmt) and (l:sub(cmt-5, cmt+1) ~= "http://") and (l:sub(cmt-6, cmt+1) ~= "https://") then
  61             print("line " .. lineno .. " has C++ comment //")
  62         end
  63     end
  64     local lts = lt:gsub('\t', '    ')
  65     if (lts ~= lt) then
  66         tabspace = true
  67         changed = true
  68     end
  69     for i=1,#lts do
  70         local b = string.byte(lts,i)
  71         if b<32 or b>=127 then
  72             print("Letter " .. string.byte(l,i) .. " (" .. b .. ") found in line " .. lts)
  73             invalid = true
  74         end
  75     end
  76
  77     newfile[#newfile + 1] = lts
  78 end
  79
  80 print("Line endings trimmed:     " .. tostring(lineend))
  81 print("Tabs converted to spaces: " .. tostring(tabspace))
  82 print("Invalid characters:       " .. tostring(invalid))
  83
  84 if changed then
  85     local f = io.open(clean, "wb")
  86     for i=1,#newfile do
  87         f:write(newfile[i])
  88         f:write("\n")
  89     end
  90     f:close()
  91     print("File cleaned")
  92 end