delete an ancient, unused file

Dependencies

• [2] M7W3VZ5M .
• [3] QCLPIXMP extract a function
• [4] R5QXEHUI somebody stop me
• [5] 6IQOBYPT repl
• [6] 6LJZN727 handle chords
• [7] XX7G2FFJ intermingle freehand line drawings with text
• [8] OTIBCAUJ love2d scaffold
• [9] D2GCFTTT clean up repl functionality
• [10] O2UAHLOV copy how Lua 5.3 REPL prints expr values
• [11] RSZD5A7G forgot to add json.lua
• [12] SKYULYLC stop mixing ncurses with print

Change contents

• file deletion: mu.lua (----------)
  [3.2]→[3.111:141](∅→∅),[3.141]→[3.4:4](∅→∅)
  − curses = require 'curses'

  −

  − local stdscr = curses.initscr()

  − stdscr:clear()

  − curses.endwin()

  − stdscr:scrollok(true)

  −

  − local function readline()

  − local result = ''

  − while true do

  − local x = stdscr:getch()

  − stdscr:addch(x)

  − local c = string.char(x)

  − result = result .. c

  − if c == '\n' then break end

  − end

  − return result

  − end

  −

  − local new_expr = true

  − local buf = ''

  − while true do

  − if new_expr then

  − stdscr:addstr('> ')

  − else

  − stdscr:addstr('>> ')

  − end

  − buf = buf .. readline()

  − if f then

  − buf = ''

  − new_expr = true

  − else

  − buf = ''

  − new_expr = true

  − else

  − if string.match(err, "'<eof>'$") or string.match(err, "<eof>$") then

  − buf = buf .. '\n'

  − new_expr = false

  − else

  − buf = ''

  − new_expr = true

  − end

  − stdscr:addstr(err..'\n')

  − end

  − end

  − end

  −

  − eval_print(f)

  − local f, err = load(buf, 'REPL')

  − if f then

  − eval_print(f)

  − local f = load('return '..buf, 'REPL')

  − -- print value of expression the way Lua 5.3 does it: by prepending 'return' to the line

  − -- based on https://github.com/hoelzro/lua-repl

  − function eval_print(f)

  − local success, results = gather_results(xpcall(f, function(...) return debug.traceback() end))

  − if success then

  − for i, result in ipairs(results) do

  − if i > 1 then

  − stdscr:addch('\t')

  − end

  − stdscr:addstr(tostring(result))

  − end

  − else

  − stdscr:addstr(tostring(result[1]))

  − end

  − stdscr:addch('\n')

  − end

  −

  − end

  −

  − local function gather_results(success, ...)

  − local n = select('#', ...)

  − return success, { n = n, ... }

  − curses.echo(false) -- unclear why implicit echo can't handle newlines, regardless of stdscr:nl()