7 files changed, 78 insertions, 8 deletions
diff --git a/Source/Library/Common/FileStream.class.cpp b/Source/Library/Common/FileStream.class.cpp
index 6154b2f..322e9aa 100644
--- a/Source/Library/Common/FileStream.class.cpp
+++ b/Source/Library/Common/FileStream.class.cpp
@@ -4,11 +4,16 @@
 //										INPUT FILE STREAM
 //																********************
 
-FileIStream::FileIStream(const String &filename, u8int encoding, FSNode start) {
+FileIStream::FileIStream(const String &filename, u8int encoding, FSNode start) : m_start(start) {
 	m_file = new File(filename, FM_READ, start);
 	m_encoding = encoding;
 }
 
+FileIStream::FileIStream(u8int encoding, FSNode start) : m_start(start) {
+	m_file = 0;
+	m_encoding = encoding;
+}
+
 FileIStream::~FileIStream() {
 	if (m_file != 0) {
 		m_file->close();
@@ -33,11 +38,7 @@ String FileIStream::read() {
 		if (m_filenames == 0) {
 			return "";
 		} else {
-#ifdef THIS_IS_MELON_KERNEL
-			m_file = new File(m_filenames->v(), FM_READ);
-#else
-			m_file = new File(m_filenames->v(), FM_READ, FS::cwdNode());
-#endif
+			m_file = new File(m_filenames->v(), FM_READ, m_start);
 			m_filenames = m_filenames->delThis();
 		}
 	}
diff --git a/Source/Library/Common/FileStream.class.h b/Source/Library/Common/FileStream.class.h
index d0fb971..99bf0e8 100644
--- a/Source/Library/Common/FileStream.class.h
+++ b/Source/Library/Common/FileStream.class.h
@@ -18,9 +18,11 @@ class FileIStream : public IStream {
 
 	File *m_file;
 	u8int m_encoding;
+	FSNode m_start;
 	
 	public:
 	FileIStream(const String &filename, u8int encoding = UE_UTF8, FSNode start = FSNode(0));
+	FileIStream(u8int encoding = UE_UTF8, FSNode start = FSNode(0));
 	~FileIStream();
 
 	void appendFile(const String &filename);
diff --git a/Source/Library/Makefile b/Source/Library/Makefile
index 83e3689..c67daf7 100644
--- a/Source/Library/Makefile
+++ b/Source/Library/Makefile
@@ -25,6 +25,7 @@ Objects = Common/WChar.class.uo \
 		  Common/StringStream.class.uo \
 		  Common/cppsupport.wtf.uo \
 		  Userland/App/ShellApp.proto.uo \
+		  Userland/App/StreamApp.proto.uo \
 		  Userland/Syscall/Syscall.wtf.uo \
 		  Userland/Syscall/RessourceCaller.class.uo \
 		  Userland/Start.uo
diff --git a/Source/Library/Userland/App/ShellApp.proto.cpp b/Source/Library/Userland/App/ShellApp.proto.cpp
index 9528ca2..840e985 100644
--- a/Source/Library/Userland/App/ShellApp.proto.cpp
+++ b/Source/Library/Userland/App/ShellApp.proto.cpp
@@ -1,6 +1,6 @@
 #include "ShellApp.proto.h"
 	
-ShellApp::ShellApp(String name, String desc)
+ShellApp::ShellApp(const String &name, const String &desc)
    	: Application(), invt(VirtualTerminal::getIn()), outvt(VirtualTerminal::getOut()) {
 	appName = name, appDesc = desc;
 	if (!invt.valid()) exit(1);
diff --git a/Source/Library/Userland/App/ShellApp.proto.h b/Source/Library/Userland/App/ShellApp.proto.h
index 2308fd1..bc57cd0 100644
--- a/Source/Library/Userland/App/ShellApp.proto.h
+++ b/Source/Library/Userland/App/ShellApp.proto.h
@@ -23,7 +23,7 @@ class ShellApp : public Application {
 	Vector<String> args;
 	Vector<flag_t> flags;
 	String appName, appDesc;
-	ShellApp(String name, String desc);
+	ShellApp(const String &name, const String &desc);
 	~ShellApp();
 
 	virtual void init();
diff --git a/Source/Library/Userland/App/StreamApp.proto.cpp b/Source/Library/Userland/App/StreamApp.proto.cpp
new file mode 100644
index 0000000..97f473e
--- /dev/null
+++ b/Source/Library/Userland/App/StreamApp.proto.cpp
@@ -0,0 +1,39 @@
+#include "StreamApp.proto.h"
+
+#include <FileStream.class.h>
+
+StreamApp::StreamApp(const String& name, const String& desc)
+	: ShellApp(name, desc) {
+	addFlag("o", "output", "Set the output to a file instead of the text output", FT_STR, "");
+	addFlag("e", "encoding", "Set the encoding for files (input and output)", FT_STR, "utf8");
+}
+
+StreamApp::~StreamApp() {
+}
+
+void StreamApp::init() {
+	ShellApp::init();
+
+	u8int encoding = UE_UTF8;
+	if (sFlag("encoding") == "utf8") encoding = UE_UTF8;
+	if (sFlag("encoding") == "utf16be") encoding = UE_UTF16_BE;
+	if (sFlag("encoding") == "utf16le") encoding = UE_UTF16_LE;
+	if (sFlag("encoding") == "utf32be") encoding = UE_UTF32_BE;
+	if (sFlag("encoding") == "utf32le") encoding = UE_UTF32_LE;
+
+	if (sFlag("output") == "") {
+		out = &outvt;
+	} else {
+		out = new FileOStream(sFlag("output"), FM_TRUNCATE, encoding, FS::cwdNode());
+	}
+
+	if (args.size() == 0) {
+		in = &invt;
+	} else {
+		FileIStream *f = new FileIStream(encoding, FS::cwdNode());
+		for (u32int i = 0; i < args.size(); i++) {
+			f->appendFile(args[i]);
+		}
+		in = f;
+	}
+}
diff --git a/Source/Library/Userland/App/StreamApp.proto.h b/Source/Library/Userland/App/StreamApp.proto.h
new file mode 100644
index 0000000..462b1f3
--- /dev/null
+++ b/Source/Library/Userland/App/StreamApp.proto.h
@@ -0,0 +1,27 @@
+#ifndef DEF_STREAMAPP_PROTO_H
+#define DEF_STREAMAPP_PROTO_H
+
+#include "ShellApp.proto.h"
+
+#include <IStream.proto.h>
+#include <OStream.proto.h>
+
+/*
+ * This class implements basic utilities for apps that simply take some input, process it and output something.
+ * Examples : cat, grep, ...
+ */
+
+class StreamApp : public ShellApp {
+	protected:
+	
+	IStream *in;
+	OStream *out;
+	
+	public:
+	StreamApp(const String& name, const String& desc);
+	~StreamApp();
+
+	virtual void init();
+};
+
+#endif