func pkg(it *ts.Interpreter) map[string]*ts.Object {
var Regex *ts.Class
read := it.Accessor("readChar")
Regex = ts.ObjectClass.Extend(it, "Regex", ts.UserData, []ts.Slot{
ts.MSlot("create", func(o, expr *ts.Object) *ts.Object {
re := regexp.MustCompile(expr.ToString())
o.SetUserData(re)
return ts.Nil
}),
ts.MSlot("match", func(o, src *ts.Object) *ts.Object {
re := o.UserData().(*regexp.Regexp)
r := runeReader{read, src}
return ts.Wrap(re.FindReaderSubmatchIndex(r))
}),
})
return map[string]*ts.Object{
"Regex": Regex.Object(),
}
}
func pkg(itpr *ts.Interpreter) map[string]*ts.Object {
var File, Stream *ts.Class
newStream := func(x interface{}) *ts.Object {
s := Stream.New()
s.SetUserData(x)
return s
}
File = ts.ObjectClass.Extend(itpr, "File", 0, []ts.Slot{
ts.FSlot("path", ts.Nil),
ts.MSlot("read", func(o, f *ts.Object) *ts.Object {
fl, err := os.Open(File.Get(o, 0).ToString())
if err != nil {
panic(err)
}
defer fl.Close()
return f.Call(nil, newStream(fl))
}),
ts.MSlot("create", func(o, p *ts.Object) *ts.Object {
File.Set(o, 0, p)
return ts.Nil
}),
ts.MSlot("exists", func(o *ts.Object) *ts.Object {
_, err := os.Stat(File.Get(o, 0).ToString())
return ts.Wrap(err == nil)
}),
ts.MSlot("open", func(o, f, p *ts.Object) *ts.Object {
path := File.Get(o, 0).ToString()
flags, perm := int(f.ToInt()), os.FileMode(int(p.ToInt()))
fl, err := os.OpenFile(path, flags, perm)
if err != nil {
panic(err)
}
return newStream(fl)
}),
ts.MSlot("write", func(o, f *ts.Object) *ts.Object {
fl, err := os.Create(File.Get(o, 0).ToString())
if err != nil {
panic(err)
}
defer fl.Close()
return f.Call(nil, newStream(fl))
}),
ts.MSlot("append", func(o, f *ts.Object) *ts.Object {
path := File.Get(o, 0).ToString()
flags := os.O_WRONLY | os.O_APPEND | os.O_CREATE
fl, err := os.OpenFile(path, flags, 0666)
if err != nil {
panic(err)
}
defer fl.Close()
return f.Call(nil, newStream(fl))
}),
})
sFlags := ts.UserData | ts.Final
Stream = ts.ObjectClass.Extend(itpr, "Stream", sFlags, []ts.Slot{
ts.MSlot("readBuffer", func(o, b *ts.Object) *ts.Object {
buf := b.ToBuffer()
r := o.UserData().(io.Reader)
n, err := r.Read(buf)
if err == io.EOF {
if n == 0 {
return ts.False
}
return ts.Wrap(n)
}
if err != nil {
panic(err)
}
return ts.Wrap(n)
}),
ts.MSlot("writeBuffer", func(o, b *ts.Object) *ts.Object {
buf := b.ToBuffer()
w := o.UserData().(io.Writer)
n, err := w.Write(buf)
if err != nil {
panic(err)
}
return ts.Wrap(n)
}),
ts.MSlot("close", func(o *ts.Object) *ts.Object {
c := o.UserData().(io.Closer)
err := c.Close()
if err != nil {
panic(err)
}
return ts.Nil
}),
})
env := map[*ts.Object]*ts.Object{}
for _, x := range os.Environ() {
ss := strings.Split(x, "=")
env[ts.Wrap(ss[0])] = ts.Wrap(ss[1])
}
return map[string]*ts.Object{
"input": newStream(os.Stdin),
"output": newStream(os.Stdout),
"File": File.Object(),
"args": ts.Wrap(os.Args),
"env": ts.Wrap(env),
}
}