func main() {
// parse flags
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %v [-src Dir] [-d NetAddress] MainCircuit Arguments...\n", os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
var flagMain string
var flagArgs = flag.Args()
if len(flagArgs) > 0 {
flagMain, flagArgs = flagArgs[0], flagArgs[1:]
}
// parse env
if *flagSrc == "" {
*flagSrc = os.Getenv("ESCHER")
}
// initialize faculties
fos.Init(flagArgs)
test.Init(*flagSrc)
circuit.Init(*flagDiscover)
//
index := Root()
if *flagSrc != "" {
index.Merge(Load(*flagSrc))
}
// run main
if flagMain != "" {
verb := see.ParseVerb(flagMain)
if Circuit(verb).IsNil() {
fmt.Fprintf(os.Stderr, "verb not recognized\n")
os.Exit(1)
}
exec(index, Circuit(verb), false)
}
// standard loop
r := kio.NewChunkReader(os.Stdin)
for {
chunk, err := r.Read()
if err != nil {
fmt.Fprintf(os.Stderr, "end of session (%v)\n", err)
if err == io.EOF || err == io.ErrUnexpectedEOF {
break
}
}
src := NewSrcString(string(chunk))
for src.Len() > 0 {
u := see.SeeChamber(src)
if u == nil || u.(Circuit).Len() == 0 {
break
}
fmt.Fprintf(os.Stderr, "MATERIALIZING %v\n", u)
exec(index, u.(Circuit), true)
}
}
}
func main() {
flag.Parse()
if *flagX == "" && *flagY == "" && *flagZ == "" {
fatalf("at least one source directory, X, Y or Z, must be specified with -x, -y or -z, respectively")
}
// Initialize faculties
facos.Init(*flagArg)
loadCircuitFaculty(*flagName, *flagDiscover, *flagX, *flagY, *flagZ)
//
switch {
case *flagSvg != "":
walk := strings.Split(*flagSvg, ".")
if len(walk) == 2 && walk[0] == "" && walk[1] == "" { // -svg .
walk = nil
}
_, cd := compile(*flagX, *flagY, *flagZ).Lookup(walk...)
switch t := cd.(type) {
case Circuit:
println("drawing not supported")
// case Faulty:
default:
println(fmt.Sprintf("SVG display available only for circuits (%T)", t))
}
case *flagShow != "":
walk := strings.Split(*flagShow, ".")
if len(walk) == 2 && walk[0] == "" && walk[1] == "" { // -show .
walk = nil
}
_, cd := compile(*flagX, *flagY, *flagZ).Lookup(walk...)
switch t := cd.(type) {
case Circuit:
fmt.Println(t.Print("", "\t"))
// case Faculty:
default:
fmt.Printf("%T/%v\n", t, t)
}
default:
b := &Being{compile(*flagX, *flagY, *flagZ)}
b.MaterializeAddress("main")
select {} // wait forever
}
}