8 files changed, 147 insertions, 3 deletions

diff --git a/Source/Kernel/Core/kmain.wtf.cpp b/Source/Kernel/Core/kmain.wtf.cpp
index e263393..11fbbea 100644
--- a/Source/Kernel/Core/kmain.wtf.cpp
+++ b/Source/Kernel/Core/kmain.wtf.cpp
@@ -18,6 +18,7 @@
 #include <TaskManager/Task.ns.h>
 #include <SyscallManager/IDT.ns.h>
 #include <Library/String.class.h>
+#include <Library/ByteArray.class.h>
 #include <VFS/Part.ns.h>
 #include <FileSystems/RamFS/RamFS.class.h>
 #include <VFS/FileNode.class.h>
@@ -211,7 +212,23 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
 				*kvt << "No argument specified.\n";
 			}
 		} else if (tokens[0] == "wf") {
-			*kvt << "Sorry, this command isn't implemented yet.\n";
+			//*kvt << "Sorry, this command isn't implemented yet.\n";
+			if (tokens.size() == 1) {
+				*kvt << "No file to write !\n";
+			} else {
+				File f(tokens[1], FM_TRUNCATE, cwd);
+				if (f.valid()) {
+					String t = kvt->readLine();
+					while (t != ".") {
+						t += "\n";
+						ByteArray temp(t);
+						f.write(temp);
+						t = kvt->readLine();
+					}
+				} else {
+					*kvt << "Error openning file.\n";
+				}
+			}
 		} else if (tokens[0] == "devices") {
 			Vector<Device*> dev = Dev::findDevices();
 			*kvt << " - Detected devices :\n";
diff --git a/Source/Kernel/Library/ByteArray.class.cpp b/Source/Kernel/Library/ByteArray.class.cpp
new file mode 100644
index 0000000..b987817
--- /dev/null
+++ b/Source/Kernel/Library/ByteArray.class.cpp
@@ -0,0 +1,63 @@
+#include "ByteArray.class.h"
+
+//Define size of a uchar_repr_t
+#define CHARSZ(x) (x.c[0] == 0 ? 0 : (x.c[1] == 0 ? 1 : (x.c[2] == 0 ? 2 : (x.c[3] == 0 ? 3 : 4))))
+
+using namespace CMem;
+
+ByteArray::ByteArray(const char* c) : BasicString<u8int>() {
+	m_length = strlen(c);
+	memcpy(m_string, (u8int*)c, m_length);
+}
+
+void ByteArray::affect(const String &string, u8int encoding) {
+	m_length = 0;
+	for (u32int i = 0; i < string.size(); i++) {
+		uchar_repr_t a = string[i].encode(encoding);
+		m_length += CHARSZ(a);
+	}
+	if (m_string != 0) delete m_string;
+	if (m_length == 0) {
+		m_string = 0;
+		return;
+	}
+	m_string = new u8int[m_length];
+	u32int x = 0;
+	for (u32int i = 0; i < string.size(); i++) {
+		uchar_repr_t a = string[i].encode(encoding);
+		memcpy(m_string + x, (u8int*)a.c, CHARSZ(a));
+		x += CHARSZ(a);
+	}
+}
+
+void ByteArray::resize(u32int size) {
+	if (size == m_length) return;
+	if (size == 0) {
+		delete m_string;
+		m_length = 0;
+		m_string = 0;
+	}
+	u8int *nd = new u8int[size];
+	if (size < m_length) {
+		memcpy(nd, m_string, size);
+	} else {
+		memcpy(nd, m_string, m_length);
+		memset(nd + m_length, 0, size - m_length);
+	}
+	delete m_string;
+	m_string = nd;
+	m_length = size;
+}
+
+void ByteArray::dump(VirtualTerminal *vt) {
+	vt->hexDump(m_string, m_length);
+}
+
+ByteArray::operator String () {
+	char* c = new char[m_length + 1];
+	memcpy((u8int*)c, m_string, m_length);
+	c[m_length] = 0;	//Add NULL terminator
+	String r(c);
+	delete c;
+	return r;
+}
diff --git a/Source/Kernel/Library/ByteArray.class.h b/Source/Kernel/Library/ByteArray.class.h
new file mode 100644
index 0000000..4b2dbed
--- /dev/null
+++ b/Source/Kernel/Library/ByteArray.class.h
@@ -0,0 +1,24 @@
+#ifndef DEF_BYTEARRAY_CLASS_H
+#define DEF_BYTEARRAY_CLASS_H
+
+#include <Library/String.class.h>
+#include <VTManager/VirtualTerminal.class.h>
+
+class ByteArray : public BasicString<u8int> {
+	public:
+	ByteArray() : BasicString<u8int>() {}
+	ByteArray(const ByteArray& other) : BasicString<u8int>(other) {}
+	ByteArray(const char* c);
+	ByteArray(u32int size) : BasicString<u8int>((u8int)0, size) {}
+	ByteArray(const String &string, u8int encoding = UE_UTF8) : BasicString<u8int>() { affect(string, encoding); }
+
+	void affect(const String& string, u8int encoding = UE_UTF8);
+	void resize(u32int size);
+
+	void dump(VirtualTerminal *vt);
+
+	operator String ();
+	operator u8int* () { return m_string; }
+};
+
+#endif
diff --git a/Source/Kernel/Library/WChar.class.h b/Source/Kernel/Library/WChar.class.h
index 63f1ea3..62226f5 100644
--- a/Source/Kernel/Library/WChar.class.h
+++ b/Source/Kernel/Library/WChar.class.h
@@ -43,6 +43,15 @@ struct WChar {
 	uchar_repr_t toUtf16();
 	uchar_repr_t toUtf32();
 
+	uchar_repr_t encode(u8int encoding = UE_UTF8) {
+		if (encoding == UE_UTF8) return toUtf8();
+		//if (encoding == UE_UTF16) return toUtf16();
+		if (encoding == UE_UTF32) return toUtf32();
+		uchar_repr_t x;
+		x.c[0] = toAscii();
+		return x;
+	}
+
 	inline WChar operator+ (u32int other) {
 		WChar r;
 		r.value = value + other;
diff --git a/Source/Kernel/Makefile b/Source/Kernel/Makefile
index 3dbd125..67e9e39 100644
--- a/Source/Kernel/Makefile
+++ b/Source/Kernel/Makefile
@@ -35,6 +35,7 @@ Objects = Core/loader.wtf.o \
 		  VTManager/VT.ns.o \
 		  Library/Bitset.class.o \
 		  Library/String.class.o \
+		  Library/ByteArray.class.o \
 		  Library/WChar.class.o \
 		  VFS/Partition.class.o \
 		  VFS/Part.ns.o \
diff --git a/Source/Kernel/Melon.ke b/Source/Kernel/Melon.ke
index 6ece4a6..605b45a 100755
--- a/Source/Kernel/Melon.ke
+++ b/Source/Kernel/Melon.ke
diff --git a/Source/Kernel/VFS/File.class.cpp b/Source/Kernel/VFS/File.class.cpp
index ba837e9..f3c7d54 100644
--- a/Source/Kernel/VFS/File.class.cpp
+++ b/Source/Kernel/VFS/File.class.cpp
@@ -18,7 +18,11 @@ bool File::open(String filename, u8int mode, FSNode* start) {
 	if (m_valid) return false;
 
 	FSNode* node = VFS::find(filename, start);
-	if (node == NULL) return false;
+	if (node == NULL){
+	   	if (mode == FM_READ) return false;
+		node = VFS::createFile(filename, start);
+		if (node == 0) return false;
+	}
 	if (node->type() != NT_FILE) return false;
 
 	m_file = (FileNode*) node;
@@ -62,6 +66,27 @@ bool File::write(u32int length, u8int *data) {
 	return false;
 }
 
+u32int File::read(ByteArray &data) {
+	if (!m_valid) {
+		data.clear();
+		return 0;
+	}
+	u32int l = m_file->read(m_position, data.size(), (u8int*)data);
+	m_position += l;
+	if (l != data.size()) data.resize(l);
+	return l;	
+}
+
+bool File::write(ByteArray &data) {
+	if (!m_valid) return false;
+	if (!m_writable) return false;
+	if (m_file->write(m_position, data.size(), (u8int*)data)) {
+		m_position += data.size();
+		return true;
+	}
+	return false;
+}
+
 bool File::seek(u64int count, u8int mode) {
 	if (!m_valid) return false;
 	if (mode == SM_FORWARD) {
diff --git a/Source/Kernel/VFS/File.class.h b/Source/Kernel/VFS/File.class.h
index 955db85..460036c 100644
--- a/Source/Kernel/VFS/File.class.h
+++ b/Source/Kernel/VFS/File.class.h
@@ -2,6 +2,7 @@
 #define DEF_FILE_CLASS_H
 
 #include <VFS/FileNode.class.h>
+#include <Library/ByteArray.class.h>
 
 enum {
 	FM_READ = 0,		//Open for read, put cursor at beginning
@@ -30,12 +31,16 @@ class File {
 	~File();
 
 	bool open(String filename, u8int mode = FM_READ, FSNode* start = 0);
+	void close(bool unregisterFD = true);	//unregisterFD = whether or not we must unregister the file descriptor from process
+
 	u32int read(u32int max_length, u8int *data);
 	bool write(u32int length, u8int *data);
+	u32int read(ByteArray &data);	//Fills ByteArray at its current length or shrinks it if necessary
+	bool write(ByteArray &data);
+
 	bool seek(u64int count, u8int mode);
 	u64int position() { return m_position; }
 	u64int length() { return m_file->getLength(); }
-	void close(bool unregisterFD = true);	//unregisterFD = whether or not we must unregister the file descriptor from process
 
 	bool valid() { return m_valid; }
 };