more correct absolute path detection

Dependencies

• [2] OI4FPFIN support drawings in the source editor
• [3] ZJOSQFN6 bugfix: path munging on Windows
• [4] CQYKYJJU remember window positions across restart/ctrl+e
• [5] X3CQLBTR set window title within each app
• [6] KKMFQDR4 editing source code from within the app
• [*] VHQCNMAR several more modules

Change contents

• edit in source_file.lua at line 202
  [2.17838]
  +

  + function is_absolute_path(path)

  + local os_path_separator = package.config:sub(1,1)

  + if os_path_separator == '/' then

  + -- POSIX systems permit backslashes in filenames

  + return path:sub(1,1) == '/'

  + elseif os_path_separator == '\\' then

  + local f = path:sub(1,1)

  + return f == '/' or f == '\\'

  + else

  + error('What OS is this? LÖVE reports that the path separator is "'..os_path_separator..'"')

  + end

  + end

  +

  + function is_relative_path(path)

  + return not is_absolute_path(path)

  + end
• replacement in source.lua at line 260
  [4.173955]→[3.114:297](∅→∅)
  − local os_path_separator = package.config:sub(1,1)

  − if filename:sub(1,1) ~= os_path_separator then

  − filename = love.filesystem.getWorkingDirectory()..os_path_separator..filename
  [4.173955]

  [4.174094]
  + if is_relative_path(filename) then

  + filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows
• replacement in run.lua at line 144
  [4.182611]→[3.302:485](∅→∅)
  − local os_path_separator = package.config:sub(1,1)

  − if filename:sub(1,1) ~= os_path_separator then

  − filename = love.filesystem.getWorkingDirectory()..os_path_separator..filename
  [4.182611]

  [4.182750]
  + if is_relative_path(filename) then

  + filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows
• edit in file.lua at line 183
  [8.18211]
  +

  + function is_absolute_path(path)

  + local os_path_separator = package.config:sub(1,1)

  + if os_path_separator == '/' then

  + -- POSIX systems permit backslashes in filenames

  + return path:sub(1,1) == '/'

  + elseif os_path_separator == '\\' then

  + local f = path:sub(1,1)

  + return f == '/' or f == '\\'

  + else

  + error('What OS is this? LÖVE reports that the path separator is "'..os_path_separator..'"')

  + end

  + end

  +

  + function is_relative_path(path)

  + return not is_absolute_path(path)

  + end