Allow the disabling of the newline in the encoder

api.go

@@ -73,6 +73,9 @@ type Config struct {
     // NoValidateJSONMarshaler indicates that the encoder should not validate the output string
     // after encoding the JSONMarshaler to JSON.
     NoValidateJSONMarshaler       bool
+
+    // NoEncoderNewline indicates that the encoder should not add a newline after every message
+    NoEncoderNewline bool
 }
 
 var (

encoder/encoder_amd64.go

@@ -63,6 +63,9 @@ const (
     // after encoding the JSONMarshaler to JSON.
     NoValidateJSONMarshaler Options = encoder.NoValidateJSONMarshaler
 
+    // NoEncoderNewline indicates that the encoder should not add a newline after every message
+    NoEncoderNewline Options = encoder.NoEncoderNewline
+
     // CompatibleWithStd is used to be compatible with std encoder.
     CompatibleWithStd Options = encoder.CompatibleWithStd
 )

encoder/encoder_compat.go

@@ -42,6 +42,7 @@ const (
     bitNoNullSliceOrMap
     bitValidateString
     bitNoValidateJSONMarshaler
+    bitNoEncoderNewline
 
     // used for recursive compile
     bitPointerValue = 63
@@ -77,6 +78,9 @@ const (
     // NoValidateJSONMarshaler indicates that the encoder should not validate the output string
     // after encoding the JSONMarshaler to JSON.
     NoValidateJSONMarshaler Options = 1 << bitNoValidateJSONMarshaler
+
+    // NoEncoderNewline indicates that the encoder should not add a newline after every message
+    NoEncoderNewline Options = 1 << bitNoEncoderNewline
 
     // CompatibleWithStd is used to be compatible with std encoder.
     CompatibleWithStd Options = SortMapKeys | EscapeHTML | CompactMarshaler
@@ -130,6 +134,15 @@ func (self *Encoder) SetNoValidateJSONMarshaler(f bool) {
     }
 }
 
+// SetNoEncoderNewline specifies if option NoEncoderNewline opens
+func (self *Encoder) SetNoEncoderNewline(f bool) {
+    if f {
+        self.Opts |= NoEncoderNewline
+    } else {
+        self.Opts &= ^NoEncoderNewline
+    }
+}
+
 // SetCompactMarshaler specifies if option CompactMarshaler opens
 func (self *Encoder) SetCompactMarshaler(f bool) {
     if f {

internal/encoder/encoder.go

@@ -41,6 +41,7 @@ const (
     bitNoNullSliceOrMap
     bitValidateString
     bitNoValidateJSONMarshaler
+    bitNoEncoderNewline 
 
     // used for recursive compile
     bitPointerValue = 63
@@ -76,6 +77,9 @@ const (
     // NoValidateJSONMarshaler indicates that the encoder should not validate the output string
     // after encoding the JSONMarshaler to JSON.
     NoValidateJSONMarshaler Options = 1 << bitNoValidateJSONMarshaler
+
+    // NoEncoderNewline indicates that the encoder should not add a newline after every message
+    NoEncoderNewline Options = 1 << bitNoEncoderNewline
 
     // CompatibleWithStd is used to be compatible with std encoder.
     CompatibleWithStd Options = SortMapKeys | EscapeHTML | CompactMarshaler
@@ -129,6 +133,16 @@ func (self *Encoder) SetNoValidateJSONMarshaler(f bool) {
     }
 }
 
+// SetNoEncoderNewline specifies if option NoEncoderNewline opens
+func (self *Encoder) SetNoEncoderNewline(f bool) {
+    if f {
+        self.Opts |= NoEncoderNewline
+    } else {
+        self.Opts &= ^NoEncoderNewline
+    }
+}
+
+
 // SetCompactMarshaler specifies if option CompactMarshaler opens
 func (self *Encoder) SetCompactMarshaler(f bool) {
     if f {

internal/encoder/stream.go

@@ -55,7 +55,9 @@ func (enc *StreamEncoder) Encode(val interface{}) (err error) {
         }
 
         // according to standard library, terminate each value with a newline...
-        buf.WriteByte('\n')
+        if enc.Opts & NoEncoderNewline == 0 {
+            buf.WriteByte('\n')
+        }
 
         /* copy into io.Writer */
         _, err = io.Copy(enc.w, buf)
@@ -76,7 +78,9 @@ func (enc *StreamEncoder) Encode(val interface{}) (err error) {
         }
 
         // according to standard library, terminate each value with a newline...
-        enc.w.Write([]byte{'\n'})
+        if enc.Opts & NoEncoderNewline == 0 {
+            enc.w.Write([]byte{'\n'})
+        }
     }
 
 free_bytes:

sonic.go

@@ -61,6 +61,9 @@ func (cfg Config) Froze() API {
     if cfg.NoValidateJSONMarshaler {
         api.encoderOpts |= encoder.NoValidateJSONMarshaler
     }
+    if cfg.NoEncoderNewline {
+        api.encoderOpts |= encoder.NoEncoderNewline
+    }
 
     // configure decoder options:
     if cfg.UseInt64 {