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MIT/X Consortium License

(C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the 
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in 
all copies or substantial portions of the Software. 

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
DEALINGS IN THE SOFTWARE.
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-08-15 08:49:55 +0000
l { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
-- primitives for saving to file and loading from file
function file_exists(filename)
  local infile = App.open_for_reading(filename)
  if infile then
    infile:close()
    return true
  else
    return false
  end
end

function load_from_disk(State)
  local infile = App.open_for_reading(State.filename)
  State.lines = load_from_file(infile)
  if infile then infile:close() end
end

function load_from_file(infile)
  local result = {}
  if infile then
    local infile_next_line = infile:lines()  -- works with both Lua files and LÖVE Files (https://www.love2d.org/wiki/File)
    while true do
      local line = infile_next_line()
      if line == nil then break end
      table.insert(result, {data=line})
    end
  end
  if #result == 0 then
    table.insert(result, {data=''})
  end
  return result
end

function save_to_disk(State)
  local outfile = App.open_for_writing(State.filename)
  if not outfile then
    error('failed to write to "'..State.filename..'"')
  end
  for _,line in ipairs(State.lines) do
    outfile:write(line.data)
    outfile:write('\n')
  end
  outfile:close()
end

-- for tests
function load_array(a)
  local result = {}
  local next_line = ipairs(a)
  local i,line,drawing = 0, ''
  while true do
    i,line = next_line(a, i)
    if i == nil then break end
    table.insert(result, {data=line})
  end
  if #result == 0 then
    table.insert(result, {data=''})
  end
  return result
end

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
    if path:sub(2,2) == ':' then return true end  -- DOS drive letter followed by volume separator
    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
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-08-15 08:49:53 +0000