Add debug utils

fmp/fmp_debug.go

@@ -0,0 +1,26 @@
+package fmp
+
+import (
+	"fmt"
+	"os"
+)
+
+func (f *FmpFile) ToDebugFile(fname string) {
+	fo, err := os.Create(fname)
+	if err != nil {
+		panic(err)
+	}
+	defer func() {
+		if err := fo.Close(); err != nil {
+			panic(err)
+		}
+	}()
+
+	for _, chunk := range f.Chunks {
+		fmt.Fprintf(fo, "%s, %s\n", chunk.String(), string(chunk.Value))
+	}
+}
+
+func (c *FmpChunk) String() string {
+	return fmt.Sprintf("<%v(%v)>", c.Type, c.Length)
+}