🎨 优化目录结构

plugin/wordle/pack.go

@@ -0,0 +1,79 @@
+package wordle
+
+import (
+	"strconv"
+	"unsafe"
+
+	goBinary "encoding/binary"
+
+	"github.com/FloatTech/zbputils/binary"
+)
+
+type wordpack [3]byte
+
+/*
+func pack(word string) (w wordpack) {
+	if len(word) != 5 {
+		panic("word must be 5 letters")
+	}
+	r := []rune(word)
+	for i := range r {
+		if r[i] < 'k' { // 0-9
+			r[i] -= 'a' - '0'
+		} else {
+			r[i] -= 10
+		}
+	}
+	word = string(r)
+	n, err := strconv.ParseUint(word, 26, 32)
+	if err != nil {
+		panic(err)
+	}
+	wt := binary.SelectWriter()
+	wt.WriteUInt32LE(uint32(n))
+	copy(w[:], wt.Bytes())
+	binary.PutWriter(wt)
+	return
+}
+*/
+
+func (w wordpack) String() (word string) {
+	wt := binary.SelectWriter()
+	_, _ = wt.Write(w[:])
+	_ = wt.WriteByte(0)
+	n := goBinary.LittleEndian.Uint32(wt.Bytes())
+	binary.PutWriter(wt)
+	word = strconv.FormatUint(uint64(n), 26)
+	for len(word) < 5 {
+		word = "0" + word
+	}
+	r := []rune(word)
+	for i := range r {
+		if r[i] < 'a' { // 0-9
+			r[i] += 'a' - '0'
+		} else {
+			r[i] += 10
+		}
+	}
+	word = string(r)
+	return
+}
+
+func loadwords(data []byte) (wordpacks []wordpack) {
+	(*slice)(unsafe.Pointer(&wordpacks)).data = (*slice)(unsafe.Pointer(&data)).data
+	(*slice)(unsafe.Pointer(&wordpacks)).len = len(data) / 3
+	(*slice)(unsafe.Pointer(&wordpacks)).cap = (*slice)(unsafe.Pointer(&data)).cap / 3
+	return
+}
+
+// slice is the runtime representation of a slice.
+// It cannot be used safely or portably and its representation may
+// change in a later release.
+//
+// Unlike reflect.SliceHeader, its Data field is sufficient to guarantee the
+// data it references will not be garbage collected.
+type slice struct {
+	data unsafe.Pointer
+	len  int
+	cap  int
+}