WIP add profile menu example

examples/compile.bash

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+for f in $(ls $1); do
+	b=$(basename $f)
+	b=${b%.*}
+	go run ./dev/asm $1/$b.vis > $1/$b.bin
+done

examples/profile/entry_name

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+Name is currently: {{.myname}}
+Enter new name.

examples/profile/entry_name.vis

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+LOAD myname 32
+MAP myname
+MOUT 0 "abort"
+HALT
+INCMP 0 _
+INCMP * entry_name_save 

examples/profile/entry_name_save.vis

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+LOAD entry_name_save 0
+RELOAD myname
+MOVE _

examples/profile/main.go

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+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+
+	testdataloader "github.com/peteole/testdata-loader"
+
+	"git.defalsify.org/vise/cache"
+	"git.defalsify.org/vise/engine"
+	"git.defalsify.org/vise/resource"
+	"git.defalsify.org/vise/state"
+)
+
+var (
+	baseDir = testdataloader.GetBasePath()
+	scriptDir = path.Join(baseDir, "examples", "profile")
+)
+
+func nameSave(sym string, input []byte, ctx context.Context) (resource.Result, error) {
+	fp := path.Join(scriptDir, "myname.txt")
+	err := ioutil.WriteFile(fp, input, 0600)
+	return resource.Result{}, err
+}
+
+func main() {
+	var dir string
+	var root string
+	var size uint
+	var sessionId string
+	flag.UintVar(&size, "s", 0, "max size of output")
+	flag.StringVar(&root, "root", "root", "entry point symbol")
+	flag.StringVar(&sessionId, "session-id", "default", "session id")
+	flag.Parse()
+	fmt.Fprintf(os.Stderr, "starting session at symbol '%s' using resource dir: %s\n", root, dir)
+
+	st := state.NewState(0)
+	rs := resource.NewFsResource(scriptDir)
+	rs.AddLocalFunc("entry_name_save", nameSave)
+	ca := cache.NewCache()
+	cfg := engine.Config{
+		Root: "root",
+		SessionId: sessionId,
+		OutputSize: uint32(size),
+	}
+	ctx := context.Background()
+	en := engine.NewEngine(cfg, &st, &rs, ca, ctx)
+
+	err := engine.Loop(&en, os.Stdin, os.Stdout, ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "loop exited with error: %v", err)
+		os.Exit(1)
+	}
+}

examples/profile/myname.txt

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+inky

examples/profile/root

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+Please input profile data

examples/profile/root.vis

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+DOWN entry_name 0 "name"
+DOWN entry_email 1 "email"
+DOWN entry_sex 2 "sex"