initial public commit of presentation

Removed work-specific stuff just in case

Author: chrsm

assets/gopherlua.png

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"github.com/yuin/gopher-lua"
+)
+
+// START OMIT
+const scr = `
+-- luastart // OMIT
+local Player = {}
+Player.__index = Player -- magic!
+
+function Player.new(name)
+  local self = setmetatable({}, Player) -- more magic!
+  self.name = name
+  self.health = 100
+  return self
+end
+
+function Player:hit(dmg) self.health = self.health - dmg end
+function Player:alive() return self.health > 0 end
+
+-- create a new Player
+local p = Player.new("chrsm")
+p:hit(150)
+if not p:alive() then
+  print(p.name .. " is dead!")
+end -- output: chrsm is dead!
+-- luaend // OMIT
+`
+
+// END OMIT
+
+func main() {
+	vm := lua.NewState()
+	defer vm.Close()
+
+	if err := vm.DoString(scr); err != nil {
+		panic(err)
+	}
+}

assets/luapgo.png

@@ -0,0 +1,19 @@
+local Player = {}
+Player.__index = Player
+
+function Player.new(name)
+  local self = setmetatable({}, Player)
+  self.name = name
+  self.health = 100
+  return self
+end
+
+function Player:hit(dmg) self.health = self.health - dmg end
+function Player:alive() return self.health > 0 end
+
+-- create a new Player
+local p = Player.new("chrsm")
+p:hit(150)
+if not p:alive() then
+  print(p.name .. " is dead!")
+end -- output: chrsm is dead!

assets/userdata_cpp.png

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"github.com/yuin/gopher-lua"
+)
+
+// START OMIT
+const scr = `
+-- luastart // OMIT
+if a then
+  print("a exists!")
+elseif not a then
+  print("a doesn't exist!")
+end
+
+b = 2
+if b ~= 1 then
+  print("b != 1")
+end
+
+a = 10
+while a > 0 do
+  a = a-1
+  if a % 2 == 0 then print("a = ", a) end
+end
+
+b = 10
+repeat
+  b = b - 1
+  if b % 2 == 0 then print("b = ", b) end
+until b == 0
+-- luaend // OMIT
+`
+
+// END OMIT
+
+func main() {
+	vm := lua.NewState()
+	defer vm.Close()
+
+	if err := vm.DoString(scr); err != nil {
+		panic(err)
+	}
+}

examples/classes/classes.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"github.com/yuin/gopher-lua"
+)
+
+// START OMIT
+const scr = `
+-- luastart // OMIT
+local yield, resume, status = 
+      coroutine.yield, coroutine.resume, coroutine.status
+
+local coro = coroutine.create(function(initial, max)
+  local v = initial
+  while v < max do
+    yield(v)
+	v = v + 1
+  end
+
+  return v -- get to max
+end)
+
+while status(coro) ~= "dead" do
+  ok, v = resume(coro, 10, 15)
+  print("v =", v, ok, status(coro))
+end
+
+-- luaend // OMIT
+`
+
+// END OMIT
+
+func main() {
+	vm := lua.NewState()
+	defer vm.Close()
+
+	if err := vm.DoString(scr); err != nil {
+		panic(err)
+	}
+}

examples/classes/classes.lua

@@ -0,0 +1,15 @@
+local c = coroutine.create(function(a, b)
+  print("args: " .. tostring(a) .. "," .. tostring(b))
+
+  a, b = coroutine.yield(a+b, 0)
+  print("back inside: " .. tostring(a) .. "," .. tostring(b))
+
+  return "done"
+end)
+
+local ok, inita, initb = coroutine.resume(c, 1, 2)
+print("initial: " .. tostring(inita) .. "," .. tostring(initb))
+ok, inita, initb = coroutine.resume(c, 3, 4)
+print("second: " .. tostring(inita) .. "," .. tostring(initb))
+print("ret: " .. tostring(coroutine.status(c)))
+print("typ: " .. tostring(type(c)))

examples/cond/cond.go

@@ -0,0 +1,35 @@
+package main
+
+// START OMIT
+import (
+	"github.com/yuin/gopher-lua"
+)
+
+const scr = `
+-- luastart // OMIT
+function add(a, b)
+  return a+b
+end
+
+function run(fn, ...)
+  return fn(...)
+end
+
+print(run(add, 1, 2))
+
+run(function(a, b)
+  print(a, b)
+end, 1, 2)
+-- luaend // OMIT
+`
+
+func main() {
+	vm := lua.NewState()
+	defer vm.Close()
+
+	if err := vm.DoString(scr); err != nil {
+		panic(err)
+	}
+}
+
+//END OMIT

examples/coro/coro.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"github.com/yuin/gopher-lua"
+)
+
+// START OMIT
+const scr = `
+-- luastart // OMIT
+-- for init,expr do
+-- note: init is explicitly local!
+for i=1,10 do
+  if i % 2 == 0 then
+    print("i =", i)
+  end
+end
+print("i =", i)
+
+-- for init,expr,postexpr
+for j=1,10,2 do
+  print("j =", j)
+end
+
+-- break
+for k=1,10 do
+  print("k =", k)
+  break
+end
+
+-- luaend // OMIT
+`
+
+// END OMIT
+
+func main() {
+	vm := lua.NewState()
+	defer vm.Close()
+
+	if err := vm.DoString(scr); err != nil {
+		panic(err)
+	}
+}