From 2ff4ea80379de0a583b63490b7955f39db77ea9d Mon Sep 17 00:00:00 2001
From: jakcron <jkrcarr@gmail.com>
Date: Sat, 7 Apr 2018 15:57:33 +0800
Subject: [PATCH] [fnd] Add SimpleTextOutput utility class.

---
 lib/libfnd/include/fnd/SimpleTextOutput.h | 18 +++++++
 lib/libfnd/source/SimpleTextOutput.cpp    | 61 +++++++++++++++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 lib/libfnd/include/fnd/SimpleTextOutput.h
 create mode 100644 lib/libfnd/source/SimpleTextOutput.cpp

diff --git a/lib/libfnd/include/fnd/SimpleTextOutput.h b/lib/libfnd/include/fnd/SimpleTextOutput.h
new file mode 100644
index 0000000..bbf8e73
--- /dev/null
+++ b/lib/libfnd/include/fnd/SimpleTextOutput.h
@@ -0,0 +1,18 @@
+#pragma once
+#include <fnd/types.h>
+
+namespace fnd
+{
+	class SimpleTextOutput
+	{
+	public:
+		static void hxdStyleDump(const byte_t* data, size_t len, size_t row_len, size_t byte_grouping_size);
+		static void hxdStyleDump(const byte_t* data, size_t len);
+		static void hexDump(const byte_t* data, size_t len, size_t row_len, size_t indent_len);
+		static void hexDump(const byte_t* data, size_t len);
+	private:
+		static const size_t kDefaultRowLen = 0x10;
+		static const size_t kDefaultByteGroupingSize = 1;
+	};
+
+}
\ No newline at end of file
diff --git a/lib/libfnd/source/SimpleTextOutput.cpp b/lib/libfnd/source/SimpleTextOutput.cpp
new file mode 100644
index 0000000..8703386
--- /dev/null
+++ b/lib/libfnd/source/SimpleTextOutput.cpp
@@ -0,0 +1,61 @@
+#include <fnd/SimpleTextOutput.h>
+#include <cstdio>
+
+void fnd::SimpleTextOutput::hxdStyleDump(const byte_t* data, size_t len, size_t row_len, size_t byte_grouping_size)
+{
+	// iterate over blocks
+	for (size_t i = 0; i < (len / row_len); i++)
+	{
+		// for block i print each byte
+		for (size_t j = 0; j < row_len; j++)
+		{
+			printf("%02X", data[(i * row_len) + j]);
+			if (((j+1) % byte_grouping_size) == 0) 
+			{
+				putchar(' ');
+			}
+		}
+		printf(" ");
+		for (size_t j = 0; j < row_len; j++)
+		{
+			printf("%c", isalnum(data[(i * row_len) + j]) ? data[(i * row_len) + j] : '.');
+		}
+		printf("\n");
+	}
+}
+
+void fnd::SimpleTextOutput::hxdStyleDump(const byte_t* data, size_t len)
+{
+	hxdStyleDump(data, len, kDefaultRowLen, kDefaultByteGroupingSize);
+}
+
+void fnd::SimpleTextOutput::hexDump(const byte_t* data, size_t len, size_t row_len, size_t indent_len)
+{
+	for (size_t i = 0; i < len; i++)
+	{
+		if ((i % row_len) == 0)
+		{
+			if (i > 0)
+				putchar('\n');
+			for (size_t j = 0; j < indent_len; j++)
+			{
+				putchar(' ');
+			}
+		}
+		printf("%02X", data[i]);
+		if ((i+1) >= len)
+		{
+			putchar('\n');
+		}
+		
+	}
+}
+
+void fnd::SimpleTextOutput::hexDump(const byte_t* data, size_t len)
+{
+	for (size_t i = 0; i < len; i++)
+	{
+		printf("%02X", data[i]);
+	}
+	putchar('\n');
+}
\ No newline at end of file