From e59961adc11f1f7868571f7057f97c63eca62d84 Mon Sep 17 00:00:00 2001
From: Charles Iliya Krempeaux <iamreiver@gmail.com>
Date: Wed, 27 Sep 2023 13:45:47 +0900
Subject: [PATCH] initial commits

---
 errors.go          | 10 ++++++++++
 fprettyprint.go    | 26 ++++++++++++++++++++++++++
 jsonprettyprint.go | 21 +++++++++++++++++++++
 prettyprint.go     |  9 +++++++++
 sprettyprint.go    | 16 ++++++++++++++++
 5 files changed, 82 insertions(+)
 create mode 100644 errors.go
 create mode 100644 fprettyprint.go
 create mode 100644 jsonprettyprint.go
 create mode 100644 prettyprint.go
 create mode 100644 sprettyprint.go

diff --git a/errors.go b/errors.go
new file mode 100644
index 0000000..09990b7
--- /dev/null
+++ b/errors.go
@@ -0,0 +1,10 @@
+package jsonpp
+
+import (
+	"sourcecode.social/reiver/go-erorr"
+)
+
+const (
+	errInternalError = erorr.Error("jsonpp: internal error")
+	errNilWriter     = erorr.Error("jsonpp: nil writer")
+)
diff --git a/fprettyprint.go b/fprettyprint.go
new file mode 100644
index 0000000..e23d757
--- /dev/null
+++ b/fprettyprint.go
@@ -0,0 +1,26 @@
+package jsonpp
+
+import (
+	"bytes"
+	"io"
+)
+
+func FPrettyPrint(writer io.Writer, json []byte) error {
+	if nil == writer {
+		return errNilWriter
+	}
+
+	var buffer bytes.Buffer
+
+	err := jsonPrettyPrint(&buffer, json)
+	if nil != err {
+		return err
+	}
+
+	_, err = buffer.WriteTo(writer)
+	if nil != err {
+		return err
+	}
+
+	return nil
+}
diff --git a/jsonprettyprint.go b/jsonprettyprint.go
new file mode 100644
index 0000000..285124b
--- /dev/null
+++ b/jsonprettyprint.go
@@ -0,0 +1,21 @@
+package jsonpp
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+const indent string = "\t"
+
+func jsonPrettyPrint(dst *bytes.Buffer, src []byte) error {
+	if nil == dst {
+		return errInternalError
+	}
+
+	err := json.Indent(dst, src, "", indent)
+	if nil != err {
+		return err
+	}
+
+	return nil
+}
diff --git a/prettyprint.go b/prettyprint.go
new file mode 100644
index 0000000..44b6c4c
--- /dev/null
+++ b/prettyprint.go
@@ -0,0 +1,9 @@
+package jsonpp
+
+import (
+	"os"
+)
+
+func PrettyPrint(json []byte) error {
+	return FPrettyPrint(os.Stdout, json)
+}
diff --git a/sprettyprint.go b/sprettyprint.go
new file mode 100644
index 0000000..4f85cf4
--- /dev/null
+++ b/sprettyprint.go
@@ -0,0 +1,16 @@
+package jsonpp
+
+import (
+	"bytes"
+)
+
+func SPrettyPrint(json []byte) string {
+	var buffer bytes.Buffer
+
+	err := jsonPrettyPrint(&buffer, json)
+	if nil != err {
+		return ""
+	}
+
+	return buffer.String()
+}