87 lines
2.0 KiB
Lua
87 lines
2.0 KiB
Lua
require 'keychord'
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local utf8 = require 'utf8'
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lines = {}
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width, height, flags = 0, 0, nil
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function love.load()
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table.insert(lines, '')
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love.window.setMode(0, 0) -- maximize
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width, height, flags = love.window.getMode()
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love.keyboard.setTextInput(true) -- bring up keyboard on touch screen
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end
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function love.draw()
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love.graphics.setColor(1, 1, 1)
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love.graphics.rectangle('fill', 1, 1, width-1, height-1)
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love.graphics.setColor(1, 1, 0)
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love.graphics.rectangle('fill', 1, 1, 400, 10*12)
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love.graphics.setColor(0, 0, 0)
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local text
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for i, line in ipairs(lines) do
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text = love.graphics.newText(love.graphics.getFont(), line)
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love.graphics.draw(text, 12, i*15)
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end
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-- cursor
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love.graphics.print('_', 12+text:getWidth(), #lines*15)
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end
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function love.update(dt)
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end
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function love.textinput(t)
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lines[#lines] = lines[#lines]..t
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end
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function keychord_pressed(chord)
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-- Don't handle any keys here that would trigger love.textinput above.
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if chord == 'return' then
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table.insert(lines, '')
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elseif chord == 'backspace' then
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if #lines > 1 and lines[#lines] == '' then
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table.remove(lines)
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else
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local byteoffset = utf8.offset(lines[#lines], -1)
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if byteoffset then
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lines[#lines] = string.sub(lines[#lines], 1, byteoffset-1)
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end
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end
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elseif chord == 'C-r' then
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lines[#lines+1] = eval(lines[#lines])[1]
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lines[#lines+1] = ''
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end
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end
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function love.keyreleased(key, scancode)
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end
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function love.mousepressed(x, y, button)
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end
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function love.mousereleased(x, y, button)
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end
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function eval(buf)
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local f = load('return '..buf, 'REPL')
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if f then
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return call_gather(f)
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end
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local f, err = load(buf, 'REPL')
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if f then
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return call_gather(f)
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else
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return {err}
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end
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end
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-- based on https://github.com/hoelzro/lua-repl
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function call_gather(f)
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local success, results = gather_results(xpcall(f, function(...) return debug.traceback() end))
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return results
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end
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function gather_results(success, ...)
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local n = select('#', ...)
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return success, { n = n, ... }
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end
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