Merge text.love

Dependencies

• [2] IZGZEWFG switch to source editor on error
• [3] CUFW4EJL reorganize app.lua and its comments
• [4] DMS3N5YD undo an ancient hack; be an idiomatic LÖVE app
• [5] AVTNUQYR basic test-enabled framework
• [6] AGJXIDOF hardcode some assumptions about how this app uses love
• [7] 3QNOKBFM beginnings of a test harness
• [8] D2IADHMW link to default love.run for comparison
• [9] CA5T33FG one more implication

Change contents

• edit in app.lua at line 5
  [3.69]→[2.36:99](∅→∅)
  − -- * recover from errors (by switching to the source editor)
• replacement in app.lua at line 36
  [3.440]→[2.100:178](∅→∅)
  − xpcall(function() love.handlers[name](a,b,c,d,e,f) end, handle_error)
  [3.440]

  [3.481]
  + love.handlers[name](a,b,c,d,e,f)
• replacement in app.lua at line 41
  [3.59]→[2.179:235](∅→∅)
  − xpcall(function() App.update(dt) end, handle_error)
  [3.59]

  [3.78]
  + App.update(dt)
• replacement in app.lua at line 45
  [3.273]→[2.236:271](∅→∅)
  − xpcall(App.draw, handle_error)
  [3.273]

  [3.288]
  + App.draw()
• edit in app.lua at line 52
  [3.2551]→[2.272:709](∅→∅)
  − function handle_error(err)

  − Error_message = debug.traceback('Error: ' .. tostring(err), --[[stack frame]]2):gsub('\n[^\n]+$', '')

  − print(Error_message)

  − if Current_app == 'run' then

  − Settings.current_app = 'source'

  − love.filesystem.write('config', json.encode(Settings))

  − load_file_from_source_or_save_directory('main.lua')

  − App.undo_initialize()

  − App.run_tests_and_initialize()

  − else

  − love.event.quit()

  − end

  − end

  −