(svn r15578) -Change: unexternalise squirrel.

12 files changed, 2660 insertions, 0 deletions

diff --git a/src/3rdparty/squirrel/sqstdlib/Makefile b/src/3rdparty/squirrel/sqstdlib/Makefile
new file mode 100644
index 000000000..d2c33c54a
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/Makefile
@@ -0,0 +1,31 @@
+SQUIRREL= ..
+
+
+OUT= $(SQUIRREL)/lib/libsqstdlib.a
+INCZ= -I$(SQUIRREL)/include -I. -Iinclude
+
+SRCS= \
+	sqstdblob.cpp \
+	sqstdio.cpp \
+	sqstdstream.cpp \
+	sqstdmath.cpp \
+	sqstdsystem.cpp \
+	sqstdstring.cpp \
+	sqstdaux.cpp \
+	sqstdrex.cpp
+
+
+sq32:
+	gcc -O2  -fno-rtti -Wall -c $(SRCS) $(INCZ)
+	ar rc $(OUT) *.o
+
+sqprof:
+	gcc -O2 -pg -fno-rtti -pie -gstabs -g3 -Wall -c $(SRCS) $(INCZ)
+	ar rc $(OUT) *.o
+
+sq64:
+	gcc -O2 -D_SQ64 -fno-rtti -Wall -c $(SRCS) $(INCZ)
+	ar rc $(OUT) *.o
+
+clean:
+	rm -f $(OUT) $(SRCS:%.cpp=%.o)
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdaux.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdaux.cpp
new file mode 100644
index 000000000..65c9070b3
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdaux.cpp
@@ -0,0 +1,129 @@
+/* see copyright notice in squirrel.h */
+#include <squirrel.h>
+#include <sqstdaux.h>
+#include <assert.h>
+
+void sqstd_printcallstack(HSQUIRRELVM v)
+{
+	SQPRINTFUNCTION pf = sq_getprintfunc(v);
+	if(pf) {
+		SQStackInfos si;
+		SQInteger i;
+		SQFloat f;
+		const SQChar *s;
+		SQInteger level=1; //1 is to skip this function that is level 0
+		const SQChar *name=0;
+		SQInteger seq=0;
+		pf(v,_SC("\nCALLSTACK\n"));
+		while(SQ_SUCCEEDED(sq_stackinfos(v,level,&si)))
+		{
+			const SQChar *fn=_SC("unknown");
+			const SQChar *src=_SC("unknown");
+			if(si.funcname)fn=si.funcname;
+			if(si.source)src=si.source;
+			pf(v,_SC("*FUNCTION [%s()] %s line [%d]\n"),fn,src,si.line);
+			level++;
+		}
+		level=0;
+		pf(v,_SC("\nLOCALS\n"));
+
+		for(level=0;level<10;level++){
+			seq=0;
+			while((name = sq_getlocal(v,level,seq)))
+			{
+				seq++;
+				switch(sq_gettype(v,-1))
+				{
+				case OT_NULL:
+					pf(v,_SC("[%s] NULL\n"),name);
+					break;
+				case OT_INTEGER:
+					sq_getinteger(v,-1,&i);
+					pf(v,_SC("[%s] %d\n"),name,i);
+					break;
+				case OT_FLOAT:
+					sq_getfloat(v,-1,&f);
+					pf(v,_SC("[%s] %.14g\n"),name,f);
+					break;
+				case OT_USERPOINTER:
+					pf(v,_SC("[%s] USERPOINTER\n"),name);
+					break;
+				case OT_STRING:
+					sq_getstring(v,-1,&s);
+					pf(v,_SC("[%s] \"%s\"\n"),name,s);
+					break;
+				case OT_TABLE:
+					pf(v,_SC("[%s] TABLE\n"),name);
+					break;
+				case OT_ARRAY:
+					pf(v,_SC("[%s] ARRAY\n"),name);
+					break;
+				case OT_CLOSURE:
+					pf(v,_SC("[%s] CLOSURE\n"),name);
+					break;
+				case OT_NATIVECLOSURE:
+					pf(v,_SC("[%s] NATIVECLOSURE\n"),name);
+					break;
+				case OT_GENERATOR:
+					pf(v,_SC("[%s] GENERATOR\n"),name);
+					break;
+				case OT_USERDATA:
+					pf(v,_SC("[%s] USERDATA\n"),name);
+					break;
+				case OT_THREAD:
+					pf(v,_SC("[%s] THREAD\n"),name);
+					break;
+				case OT_CLASS:
+					pf(v,_SC("[%s] CLASS\n"),name);
+					break;
+				case OT_INSTANCE:
+					pf(v,_SC("[%s] INSTANCE\n"),name);
+					break;
+				case OT_WEAKREF:
+					pf(v,_SC("[%s] WEAKREF\n"),name);
+					break;
+				case OT_BOOL:{
+					sq_getinteger(v,-1,&i);
+					pf(v,_SC("[%s] %s\n"),name,i?_SC("true"):_SC("false"));
+							 }
+					break;
+				default: assert(0); break;
+				}
+				sq_pop(v,1);
+			}
+		}
+	}
+}
+
+static SQInteger _sqstd_aux_printerror(HSQUIRRELVM v)
+{
+	SQPRINTFUNCTION pf = sq_getprintfunc(v);
+	if(pf) {
+		const SQChar *sErr = 0;
+		if(sq_gettop(v)>=1) {
+			if(SQ_SUCCEEDED(sq_getstring(v,2,&sErr)))	{
+				pf(v,_SC("\nAN ERROR HAS OCCURED [%s]\n"),sErr);
+			}
+			else{
+				pf(v,_SC("\nAN ERROR HAS OCCURED [unknown]\n"));
+			}
+			sqstd_printcallstack(v);
+		}
+	}
+	return 0;
+}
+
+void _sqstd_compiler_error(HSQUIRRELVM v,const SQChar *sErr,const SQChar *sSource,SQInteger line,SQInteger column)
+{
+	SQPRINTFUNCTION pf = sq_getprintfunc(v);
+	if(pf) {
+		pf(v,_SC("%s line = (%d) column = (%d) : error %s\n"),sSource,line,column,sErr);
+	}
+}
+
+void sqstd_seterrorhandlers(HSQUIRRELVM v)
+{
+	sq_setcompilererrorhandler(v,_sqstd_compiler_error);
+	sq_newclosure(v,_sqstd_aux_printerror,0);
+	sq_seterrorhandler(v);
+}
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdblob.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdblob.cpp
new file mode 100644
index 000000000..23842ba6f
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdblob.cpp
@@ -0,0 +1,251 @@
+/* see copyright notice in squirrel.h */
+#include <new>
+#include <squirrel.h>
+#include <sqstdio.h>
+#include <string.h>
+#include <sqstdblob.h>
+#include "sqstdstream.h"
+#include "sqstdblobimpl.h"
+
+#define SQSTD_BLOB_TYPE_TAG (SQSTD_STREAM_TYPE_TAG | 0x00000002)
+
+//Blob
+
+
+#define SETUP_BLOB(v) \
+	SQBlob *self = NULL; \
+	{ if(SQ_FAILED(sq_getinstanceup(v,1,(SQUserPointer*)&self,(SQUserPointer)SQSTD_BLOB_TYPE_TAG))) \
+		return SQ_ERROR; }
+
+
+static SQInteger _blob_resize(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	SQInteger size;
+	sq_getinteger(v,2,&size);
+	if(!self->Resize(size))
+		return sq_throwerror(v,_SC("resize failed"));
+	return 0;
+}
+
+static void __swap_dword(unsigned int *n)
+{
+	*n=(unsigned int)(((*n&0xFF000000)>>24)  |
+			((*n&0x00FF0000)>>8)  |
+			((*n&0x0000FF00)<<8)  |
+			((*n&0x000000FF)<<24));
+}
+
+static void __swap_word(unsigned short *n)
+{
+	*n=(unsigned short)((*n>>8)&0x00FF)| ((*n<<8)&0xFF00);
+}
+
+static SQInteger _blob_swap4(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	SQInteger num=(self->Len()-(self->Len()%4))>>2;
+	unsigned int *t=(unsigned int *)self->GetBuf();
+	for(SQInteger i = 0; i < num; i++) {
+		__swap_dword(&t[i]);
+	}
+	return 0;
+}
+
+static SQInteger _blob_swap2(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	SQInteger num=(self->Len()-(self->Len()%2))>>1;
+	unsigned short *t = (unsigned short *)self->GetBuf();
+	for(SQInteger i = 0; i < num; i++) {
+		__swap_word(&t[i]);
+	}
+	return 0;
+}
+
+static SQInteger _blob__set(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	SQInteger idx,val;
+	sq_getinteger(v,2,&idx);
+	sq_getinteger(v,3,&val);
+	if(idx < 0 || idx >= self->Len())
+		return sq_throwerror(v,_SC("index out of range"));
+	((unsigned char *)self->GetBuf())[idx] = (unsigned char) val;
+	sq_push(v,3);
+	return 1;
+}
+
+static SQInteger _blob__get(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	SQInteger idx;
+	sq_getinteger(v,2,&idx);
+	if(idx < 0 || idx >= self->Len())
+		return sq_throwerror(v,_SC("index out of range"));
+	sq_pushinteger(v,((unsigned char *)self->GetBuf())[idx]);
+	return 1;
+}
+
+static SQInteger _blob__nexti(HSQUIRRELVM v)
+{
+	SETUP_BLOB(v);
+	if(sq_gettype(v,2) == OT_NULL) {
+		sq_pushinteger(v, 0);
+		return 1;
+	}
+	SQInteger idx;
+	if(SQ_SUCCEEDED(sq_getinteger(v, 2, &idx))) {
+		if(idx+1 < self->Len()) {
+			sq_pushinteger(v, idx+1);
+			return 1;
+		}
+		sq_pushnull(v);
+		return 1;
+	}
+	return sq_throwerror(v,_SC("internal error (_nexti) wrong argument type"));
+}
+
+static SQInteger _blob__typeof(HSQUIRRELVM v)
+{
+	sq_pushstring(v,_SC("blob"),-1);
+	return 1;
+}
+
+static SQInteger _blob_releasehook(SQUserPointer p, SQInteger size)
+{
+	SQBlob *self = (SQBlob*)p;
+	delete self;
+	return 1;
+}
+
+static SQInteger _blob_constructor(HSQUIRRELVM v)
+{
+	SQInteger nparam = sq_gettop(v);
+	SQInteger size = 0;
+	if(nparam == 2) {
+		sq_getinteger(v, 2, &size);
+	}
+	if(size < 0) return sq_throwerror(v, _SC("cannot create blob with negative size"));
+	SQBlob *b = new SQBlob(size);
+	if(SQ_FAILED(sq_setinstanceup(v,1,b))) {
+		delete b;
+		return sq_throwerror(v, _SC("cannot create blob with negative size"));
+	}
+	sq_setreleasehook(v,1,_blob_releasehook);
+	return 0;
+}
+
+#define _DECL_BLOB_FUNC(name,nparams,typecheck) {_SC(#name),_blob_##name,nparams,typecheck}
+static SQRegFunction _blob_methods[] = {
+	_DECL_BLOB_FUNC(constructor,-1,_SC("xn")),
+	_DECL_BLOB_FUNC(resize,2,_SC("xn")),
+	_DECL_BLOB_FUNC(swap2,1,_SC("x")),
+	_DECL_BLOB_FUNC(swap4,1,_SC("x")),
+	_DECL_BLOB_FUNC(_set,3,_SC("xnn")),
+	_DECL_BLOB_FUNC(_get,2,_SC("xn")),
+	_DECL_BLOB_FUNC(_typeof,1,_SC("x")),
+	_DECL_BLOB_FUNC(_nexti,2,_SC("x")),
+	{0,0,0,0}
+};
+
+
+
+//GLOBAL FUNCTIONS
+
+static SQInteger _g_blob_casti2f(HSQUIRRELVM v)
+{
+	SQInteger i;
+	sq_getinteger(v,2,&i);
+	sq_pushfloat(v,*((SQFloat *)&i));
+	return 1;
+}
+
+static SQInteger _g_blob_castf2i(HSQUIRRELVM v)
+{
+	SQFloat f;
+	sq_getfloat(v,2,&f);
+	sq_pushinteger(v,*((SQInteger *)&f));
+	return 1;
+}
+
+static SQInteger _g_blob_swap2(HSQUIRRELVM v)
+{
+	SQInteger i;
+	sq_getinteger(v,2,&i);
+	short s=(short)i;
+	sq_pushinteger(v,(s<<8)|((s>>8)&0x00FF));
+	return 1;
+}
+
+static SQInteger _g_blob_swap4(HSQUIRRELVM v)
+{
+	SQInteger i;
+	sq_getinteger(v,2,&i);
+	unsigned int t4 = (unsigned int)i;
+	__swap_dword(&t4);
+	sq_pushinteger(v,(SQInteger)t4);
+	return 1;
+}
+
+static SQInteger _g_blob_swapfloat(HSQUIRRELVM v)
+{
+	SQFloat f;
+	sq_getfloat(v,2,&f);
+	__swap_dword((unsigned int *)&f);
+	sq_pushfloat(v,f);
+	return 1;
+}
+
+#define _DECL_GLOBALBLOB_FUNC(name,nparams,typecheck) {_SC(#name),_g_blob_##name,nparams,typecheck}
+static SQRegFunction bloblib_funcs[]={
+	_DECL_GLOBALBLOB_FUNC(casti2f,2,_SC(".n")),
+	_DECL_GLOBALBLOB_FUNC(castf2i,2,_SC(".n")),
+	_DECL_GLOBALBLOB_FUNC(swap2,2,_SC(".n")),
+	_DECL_GLOBALBLOB_FUNC(swap4,2,_SC(".n")),
+	_DECL_GLOBALBLOB_FUNC(swapfloat,2,_SC(".n")),
+	{0,0,0,0}
+};
+
+SQRESULT sqstd_getblob(HSQUIRRELVM v,SQInteger idx,SQUserPointer *ptr)
+{
+	SQBlob *blob;
+	if(SQ_FAILED(sq_getinstanceup(v,idx,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG)))
+		return -1;
+	*ptr = blob->GetBuf();
+	return SQ_OK;
+}
+
+SQInteger sqstd_getblobsize(HSQUIRRELVM v,SQInteger idx)
+{
+	SQBlob *blob;
+	if(SQ_FAILED(sq_getinstanceup(v,idx,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG)))
+		return -1;
+	return blob->Len();
+}
+
+SQUserPointer sqstd_createblob(HSQUIRRELVM v, SQInteger size)
+{
+	SQInteger top = sq_gettop(v);
+	sq_pushregistrytable(v);
+	sq_pushstring(v,_SC("std_blob"),-1);
+	if(SQ_SUCCEEDED(sq_get(v,-2))) {
+		sq_remove(v,-2); //removes the registry
+		sq_push(v,1); // push the this
+		sq_pushinteger(v,size); //size
+		SQBlob *blob = NULL;
+		if(SQ_SUCCEEDED(sq_call(v,2,SQTrue,SQFalse))
+			&& SQ_SUCCEEDED(sq_getinstanceup(v,-1,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG))) {
+			sq_remove(v,-2);
+			return blob->GetBuf();
+		}
+	}
+	sq_settop(v,top);
+	return NULL;
+}
+
+SQRESULT sqstd_register_bloblib(HSQUIRRELVM v)
+{
+	return declare_stream(v,_SC("blob"),(SQUserPointer)SQSTD_BLOB_TYPE_TAG,_SC("std_blob"),_blob_methods,bloblib_funcs);
+}
+
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdblobimpl.h b/src/3rdparty/squirrel/sqstdlib/sqstdblobimpl.h
new file mode 100644
index 000000000..9f22c0ae2
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdblobimpl.h
@@ -0,0 +1,108 @@
+/*	see copyright notice in squirrel.h */
+#ifndef _SQSTD_BLOBIMPL_H_
+#define _SQSTD_BLOBIMPL_H_
+
+struct SQBlob : public SQStream
+{
+	SQBlob(SQInteger size) {
+		_size = size;
+		_allocated = size;
+		_buf = (unsigned char *)sq_malloc(size);
+		memset(_buf, 0, _size);
+		_ptr = 0;
+		_owns = true;
+	}
+	virtual ~SQBlob() {
+		sq_free(_buf, _allocated);
+	}
+	SQInteger Write(void *buffer, SQInteger size) {
+		if(!CanAdvance(size)) {
+			GrowBufOf(_ptr + size - _size);
+		}
+		memcpy(&_buf[_ptr], buffer, size);
+		_ptr += size;
+		return size;
+	}
+	SQInteger Read(void *buffer,SQInteger size) {
+		SQInteger n = size;
+		if(!CanAdvance(size)) {
+			if((_size - _ptr) > 0)
+				n = _size - _ptr;
+			else return 0;
+		}
+		memcpy(buffer, &_buf[_ptr], n);
+		_ptr += n;
+		return n;
+	}
+	bool Resize(SQInteger n) {
+		if(!_owns) return false;
+		if(n != _allocated) {
+			unsigned char *newbuf = (unsigned char *)sq_malloc(n);
+			memset(newbuf,0,n);
+			if(_size > n)
+				memcpy(newbuf,_buf,n);
+			else
+				memcpy(newbuf,_buf,_size);
+			sq_free(_buf,_allocated);
+			_buf=newbuf;
+			_allocated = n;
+			if(_size > _allocated)
+				_size = _allocated;
+			if(_ptr > _allocated)
+				_ptr = _allocated;
+		}
+		return true;
+	}
+	bool GrowBufOf(SQInteger n)
+	{
+		bool ret = true;
+		if(_size + n > _allocated) {
+			if(_size + n > _size * 2)
+				ret = Resize(_size + n);
+			else
+				ret = Resize(_size * 2);
+		}
+		_size = _size + n;
+		return ret;
+	}
+	bool CanAdvance(SQInteger n) {
+		if(_ptr+n>_size)return false;
+		return true;
+	}
+	SQInteger Seek(SQInteger offset, SQInteger origin) {
+		switch(origin) {
+			case SQ_SEEK_SET:
+				if(offset > _size || offset < 0) return -1;
+				_ptr = offset;
+				break;
+			case SQ_SEEK_CUR:
+				if(_ptr + offset > _size || _ptr + offset < 0) return -1;
+				_ptr += offset;
+				break;
+			case SQ_SEEK_END:
+				if(_size + offset > _size || _size + offset < 0) return -1;
+				_ptr = _size + offset;
+				break;
+			default: return -1;
+		}
+		return 0;
+	}
+	bool IsValid() {
+		return _buf?true:false;
+	}
+	bool EOS() {
+		return _ptr == _size;
+	}
+	SQInteger Flush() { return 0; }
+	SQInteger Tell() { return _ptr; }
+	SQInteger Len() { return _size; }
+	SQUserPointer GetBuf(){ return _buf; }
+private:
+	SQInteger _size;
+	SQInteger _allocated;
+	SQInteger _ptr;
+	unsigned char *_buf;
+	bool _owns;
+};
+
+#endif //_SQSTD_BLOBIMPL_H_
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdio.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdio.cpp
new file mode 100644
index 000000000..217205e5c
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdio.cpp
@@ -0,0 +1,410 @@
+/* see copyright notice in squirrel.h */
+#include <stdio.h>
+#include <squirrel.h>
+#include <new>
+#include <sqstdio.h>
+#include "sqstdstream.h"
+
+#define SQSTD_FILE_TYPE_TAG (SQSTD_STREAM_TYPE_TAG | 0x00000001)
+//basic API
+SQFILE sqstd_fopen(const SQChar *filename ,const SQChar *mode)
+{
+#ifndef SQUNICODE
+	return (SQFILE)fopen(filename,mode);
+#else
+	return (SQFILE)_wfopen(filename,mode);
+#endif
+}
+
+SQInteger sqstd_fread(void* buffer, SQInteger size, SQInteger count, SQFILE file)
+{
+	return (SQInteger)fread(buffer,size,count,(FILE *)file);
+}
+
+SQInteger sqstd_fwrite(const SQUserPointer buffer, SQInteger size, SQInteger count, SQFILE file)
+{
+	return (SQInteger)fwrite(buffer,size,count,(FILE *)file);
+}
+
+SQInteger sqstd_fseek(SQFILE file, SQInteger offset, SQInteger origin)
+{
+	SQInteger realorigin;
+	switch(origin) {
+		case SQ_SEEK_CUR: realorigin = SEEK_CUR; break;
+		case SQ_SEEK_END: realorigin = SEEK_END; break;
+		case SQ_SEEK_SET: realorigin = SEEK_SET; break;
+		default: return -1; //failed
+	}
+	return fseek((FILE *)file,(long)offset,(int)realorigin);
+}
+
+SQInteger sqstd_ftell(SQFILE file)
+{
+	return ftell((FILE *)file);
+}
+
+SQInteger sqstd_fflush(SQFILE file)
+{
+	return fflush((FILE *)file);
+}
+
+SQInteger sqstd_fclose(SQFILE file)
+{
+	return fclose((FILE *)file);
+}
+
+SQInteger sqstd_feof(SQFILE file)
+{
+	return feof((FILE *)file);
+}
+
+//File
+struct SQFile : public SQStream {
+	SQFile() { _handle = NULL; _owns = false;}
+	SQFile(SQFILE file, bool owns) { _handle = file; _owns = owns;}
+	virtual ~SQFile() { Close(); }
+	bool Open(const SQChar *filename ,const SQChar *mode) {
+		Close();
+		if( (_handle = sqstd_fopen(filename,mode)) ) {
+			_owns = true;
+			return true;
+		}
+		return false;
+	}
+	void Close() {
+		if(_handle && _owns) {
+			sqstd_fclose(_handle);
+			_handle = NULL;
+			_owns = false;
+		}
+	}
+	SQInteger Read(void *buffer,SQInteger size) {
+		return sqstd_fread(buffer,1,size,_handle);
+	}
+	SQInteger Write(void *buffer,SQInteger size) {
+		return sqstd_fwrite(buffer,1,size,_handle);
+	}
+	SQInteger Flush() {
+		return sqstd_fflush(_handle);
+	}
+	SQInteger Tell() {
+		return sqstd_ftell(_handle);
+	}
+	SQInteger Len() {
+		SQInteger prevpos=Tell();
+		Seek(0,SQ_SEEK_END);
+		SQInteger size=Tell();
+		Seek(prevpos,SQ_SEEK_SET);
+		return size;
+	}
+	SQInteger Seek(SQInteger offset, SQInteger origin)	{
+		return sqstd_fseek(_handle,offset,origin);
+	}
+	bool IsValid() { return _handle?true:false; }
+	bool EOS() { return Tell()==Len()?true:false;}
+	SQFILE GetHandle() {return _handle;}
+private:
+	SQFILE _handle;
+	bool _owns;
+};
+
+static SQInteger _file__typeof(HSQUIRRELVM v)
+{
+	sq_pushstring(v,_SC("file"),-1);
+	return 1;
+}
+
+static SQInteger _file_releasehook(SQUserPointer p, SQInteger size)
+{
+	SQFile *self = (SQFile*)p;
+	delete self;
+	return 1;
+}
+
+static SQInteger _file_constructor(HSQUIRRELVM v)
+{
+	const SQChar *filename,*mode;
+	bool owns = true;
+	SQFile *f;
+	SQFILE newf;
+	if(sq_gettype(v,2) == OT_STRING && sq_gettype(v,3) == OT_STRING) {
+		sq_getstring(v, 2, &filename);
+		sq_getstring(v, 3, &mode);
+		newf = sqstd_fopen(filename, mode);
+		if(!newf) return sq_throwerror(v, _SC("cannot open file"));
+	} else if(sq_gettype(v,2) == OT_USERPOINTER) {
+		owns = !(sq_gettype(v,3) == OT_NULL);
+		sq_getuserpointer(v,2,&newf);
+	} else {
+		return sq_throwerror(v,_SC("wrong parameter"));
+	}
+	f = new SQFile(newf,owns);
+	if(SQ_FAILED(sq_setinstanceup(v,1,f))) {
+		delete f;
+		return sq_throwerror(v, _SC("cannot create blob with negative size"));
+	}
+	sq_setreleasehook(v,1,_file_releasehook);
+	return 0;
+}
+
+//bindings
+#define _DECL_FILE_FUNC(name,nparams,typecheck) {_SC(#name),_file_##name,nparams,typecheck}
+static SQRegFunction _file_methods[] = {
+	_DECL_FILE_FUNC(constructor,3,_SC("x")),
+	_DECL_FILE_FUNC(_typeof,1,_SC("x")),
+	{0,0,0,0},
+};
+
+
+
+SQRESULT sqstd_createfile(HSQUIRRELVM v, SQFILE file,SQBool own)
+{
+	SQInteger top = sq_gettop(v);
+	sq_pushregistrytable(v);
+	sq_pushstring(v,_SC("std_file"),-1);
+	if(SQ_SUCCEEDED(sq_get(v,-2))) {
+		sq_remove(v,-2); //removes the registry
+		sq_pushroottable(v); // push the this
+		sq_pushuserpointer(v,file); //file
+		if(own){
+			sq_pushinteger(v,1); //true
+		}
+		else{
+			sq_pushnull(v); //false
+		}
+		if(SQ_SUCCEEDED( sq_call(v,3,SQTrue,SQFalse) )) {
+			sq_remove(v,-2);
+			return SQ_OK;
+		}
+	}
+	sq_settop(v,top);
+	return SQ_OK;
+}
+
+SQRESULT sqstd_getfile(HSQUIRRELVM v, SQInteger idx, SQFILE *file)
+{
+	SQFile *fileobj = NULL;
+	if(SQ_SUCCEEDED(sq_getinstanceup(v,idx,(SQUserPointer*)&fileobj,(SQUserPointer)SQSTD_FILE_TYPE_TAG))) {
+		*file = fileobj->GetHandle();
+		return SQ_OK;
+	}
+	return sq_throwerror(v,_SC("not a file"));
+}
+
+
+
+static SQInteger _io_file_lexfeed_ASCII(SQUserPointer file)
+{
+	SQInteger ret;
+	char c;
+	if( ( ret=sqstd_fread(&c,sizeof(c),1,(FILE *)file )>0) )
+		return c;
+	return 0;
+}
+
+static SQInteger _io_file_lexfeed_UTF8(SQUserPointer file)
+{
+#define READ() \
+	if(sqstd_fread(&inchar,sizeof(inchar),1,(FILE *)file) != 1) \
+		return 0;
+
+	static const SQInteger utf8_lengths[16] =
+	{
+		1,1,1,1,1,1,1,1,        /* 0000 to 0111 : 1 byte (plain ASCII) */
+		0,0,0,0,                /* 1000 to 1011 : not valid */
+		2,2,                    /* 1100, 1101 : 2 bytes */
+		3,                      /* 1110 : 3 bytes */
+		4                       /* 1111 :4 bytes */
+	};
+	static unsigned char byte_masks[5] = {0,0,0x1f,0x0f,0x07};
+	unsigned char inchar;
+	SQInteger c = 0;
+	READ();
+	c = inchar;
+	//
+	if(c >= 0x80) {
+		SQInteger tmp;
+		SQInteger codelen = utf8_lengths[c>>4];
+		if(codelen == 0)
+			return 0;
+			//"invalid UTF-8 stream";
+		tmp = c&byte_masks[codelen];
+		for(SQInteger n = 0; n < codelen-1; n++) {
+			tmp<<=6;
+			READ();
+			tmp |= inchar & 0x3F;
+		}
+		c = tmp;
+	}
+	return c;
+}
+
+static SQInteger _io_file_lexfeed_UCS2_LE(SQUserPointer file)
+{
+	SQInteger ret;
+	wchar_t c;
+	if( ( ret=sqstd_fread(&c,sizeof(c),1,(FILE *)file )>0) )
+		return (SQChar)c;
+	return 0;
+}
+
+static SQInteger _io_file_lexfeed_UCS2_BE(SQUserPointer file)
+{
+	SQInteger ret;
+	unsigned short c;
+	if( ( ret=sqstd_fread(&c,sizeof(c),1,(FILE *)file )>0) ) {
+		c = ((c>>8)&0x00FF)| ((c<<8)&0xFF00);
+		return (SQChar)c;
+	}
+	return 0;
+}
+
+SQInteger file_read(SQUserPointer file,SQUserPointer buf,SQInteger size)
+{
+	SQInteger ret;
+	if( ( ret = sqstd_fread(buf,1,size,(SQFILE)file ))!=0 )return ret;
+	return -1;
+}
+
+SQInteger file_write(SQUserPointer file,SQUserPointer p,SQInteger size)
+{
+	return sqstd_fwrite(p,1,size,(SQFILE)file);
+}
+
+SQRESULT sqstd_loadfile(HSQUIRRELVM v,const SQChar *filename,SQBool printerror)
+{
+	SQFILE file = sqstd_fopen(filename,_SC("rb"));
+	SQInteger ret;
+	unsigned short us;
+	unsigned char uc;
+	SQLEXREADFUNC func = _io_file_lexfeed_ASCII;
+	if(file){
+		ret = sqstd_fread(&us,1,2,file);
+		if(ret != 2) {
+			//probably an empty file
+			us = 0;
+		}
+		if(us == SQ_BYTECODE_STREAM_TAG) { //BYTECODE
+			sqstd_fseek(file,0,SQ_SEEK_SET);
+			if(SQ_SUCCEEDED(sq_readclosure(v,file_read,file))) {
+				sqstd_fclose(file);
+				return SQ_OK;
+			}
+		}
+		else { //SCRIPT
+			switch(us)
+			{
+				//gotta swap the next 2 lines on BIG endian machines
+				case 0xFFFE: func = _io_file_lexfeed_UCS2_BE; break;//UTF-16 little endian;
+				case 0xFEFF: func = _io_file_lexfeed_UCS2_LE; break;//UTF-16 big endian;
+				case 0xBBEF:
+					if(sqstd_fread(&uc,1,sizeof(uc),file) == 0) {
+						sqstd_fclose(file);
+						return sq_throwerror(v,_SC("io error"));
+					}
+					if(uc != 0xBF) {
+						sqstd_fclose(file);
+						return sq_throwerror(v,_SC("Unrecognozed ecoding"));
+					}
+					func = _io_file_lexfeed_UTF8;
+					break;//UTF-8 ;
+				default: sqstd_fseek(file,0,SQ_SEEK_SET); break; // ascii
+			}
+
+			if(SQ_SUCCEEDED(sq_compile(v,func,file,filename,printerror))){
+				sqstd_fclose(file);
+				return SQ_OK;
+			}
+		}
+		sqstd_fclose(file);
+		return SQ_ERROR;
+	}
+	return sq_throwerror(v,_SC("cannot open the file"));
+}
+
+SQRESULT sqstd_dofile(HSQUIRRELVM v,const SQChar *filename,SQBool retval,SQBool printerror)
+{
+	if(SQ_SUCCEEDED(sqstd_loadfile(v,filename,printerror))) {
+		sq_push(v,-2);
+		if(SQ_SUCCEEDED(sq_call(v,1,retval,SQTrue))) {
+			sq_remove(v,retval?-2:-1); //removes the closure
+			return 1;
+		}
+		sq_pop(v,1); //removes the closure
+	}
+	return SQ_ERROR;
+}
+
+SQRESULT sqstd_writeclosuretofile(HSQUIRRELVM v,const SQChar *filename)
+{
+	SQFILE file = sqstd_fopen(filename,_SC("wb+"));
+	if(!file) return sq_throwerror(v,_SC("cannot open the file"));
+	if(SQ_SUCCEEDED(sq_writeclosure(v,file_write,file))) {
+		sqstd_fclose(file);
+		return SQ_OK;
+	}
+	sqstd_fclose(file);
+	return SQ_ERROR; //forward the error
+}
+
+SQInteger _g_io_loadfile(HSQUIRRELVM v)
+{
+	const SQChar *filename;
+	SQBool printerror = SQFalse;
+	sq_getstring(v,2,&filename);
+	if(sq_gettop(v) >= 3) {
+		sq_getbool(v,3,&printerror);
+	}
+	if(SQ_SUCCEEDED(sqstd_loadfile(v,filename,printerror)))
+		return 1;
+	return SQ_ERROR; //propagates the error
+}
+
+SQInteger _g_io_writeclosuretofile(HSQUIRRELVM v)
+{
+	const SQChar *filename;
+	sq_getstring(v,2,&filename);
+	if(SQ_SUCCEEDED(sqstd_writeclosuretofile(v,filename)))
+		return 1;
+	return SQ_ERROR; //propagates the error
+}
+
+SQInteger _g_io_dofile(HSQUIRRELVM v)
+{
+	const SQChar *filename;
+	SQBool printerror = SQFalse;
+	sq_getstring(v,2,&filename);
+	if(sq_gettop(v) >= 3) {
+		sq_getbool(v,3,&printerror);
+	}
+	sq_push(v,1); //repush the this
+	if(SQ_SUCCEEDED(sqstd_dofile(v,filename,SQTrue,printerror)))
+		return 1;
+	return SQ_ERROR; //propagates the error
+}
+
+#define _DECL_GLOBALIO_FUNC(name,nparams,typecheck) {_SC(#name),_g_io_##name,nparams,typecheck}
+static SQRegFunction iolib_funcs[]={
+	_DECL_GLOBALIO_FUNC(loadfile,-2,_SC(".sb")),
+	_DECL_GLOBALIO_FUNC(dofile,-2,_SC(".sb")),
+	_DECL_GLOBALIO_FUNC(writeclosuretofile,3,_SC(".sc")),
+	{0,0,0,0}
+};
+
+SQRESULT sqstd_register_iolib(HSQUIRRELVM v)
+{
+	SQInteger top = sq_gettop(v);
+	//create delegate
+	declare_stream(v,_SC("file"),(SQUserPointer)SQSTD_FILE_TYPE_TAG,_SC("std_file"),_file_methods,iolib_funcs);
+	sq_pushstring(v,_SC("stdout"),-1);
+	sqstd_createfile(v,stdout,SQFalse);
+	sq_createslot(v,-3);
+	sq_pushstring(v,_SC("stdin"),-1);
+	sqstd_createfile(v,stdin,SQFalse);
+	sq_createslot(v,-3);
+	sq_pushstring(v,_SC("stderr"),-1);
+	sqstd_createfile(v,stderr,SQFalse);
+	sq_createslot(v,-3);
+	sq_settop(v,top);
+	return SQ_OK;
+}
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdlib.dsp b/src/3rdparty/squirrel/sqstdlib/sqstdlib.dsp
new file mode 100644
index 000000000..ad0bcece3
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdlib.dsp
@@ -0,0 +1,131 @@
+# Microsoft Developer Studio Project File - Name="sqstdlib" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=sqstdlib - Win32 Release
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE
+!MESSAGE NMAKE /f "sqstdlib.mak".
+!MESSAGE
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE
+!MESSAGE NMAKE /f "sqstdlib.mak" CFG="sqstdlib - Win32 Release"
+!MESSAGE
+!MESSAGE Possible choices for configuration are:
+!MESSAGE
+!MESSAGE "sqstdlib - Win32 Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "sqstdlib - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_LocalPath ".."
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "sqstdlib - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
+# ADD CPP /nologo /W3 /GX /O2 /I "..\include" /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
+# ADD BASE RSC /l 0x410 /d "NDEBUG"
+# ADD RSC /l 0x410 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\lib\sqstdlib.lib"
+
+!ELSEIF  "$(CFG)" == "sqstdlib - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I "..\include" /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
+# ADD BASE RSC /l 0x410 /d "_DEBUG"
+# ADD RSC /l 0x410 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo /out:"..\lib\sqstdlib.lib"
+
+!ENDIF
+
+# Begin Target
+
+# Name "sqstdlib - Win32 Release"
+# Name "sqstdlib - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\sqstdblob.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdio.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdmath.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdrex.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdstream.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdstring.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdaux.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdsystem.cpp
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=.\sqstdblobimpl.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sqstdstream.h
+# End Source File
+# End Group
+# End Target
+# End Project
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdmath.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdmath.cpp
new file mode 100644
index 000000000..7d35f40e4
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdmath.cpp
@@ -0,0 +1,106 @@
+/* see copyright notice in squirrel.h */
+#include <squirrel.h>
+#include <math.h>
+#include <stdlib.h>
+#include <sqstdmath.h>
+
+#define SINGLE_ARG_FUNC(_funcname) static SQInteger math_##_funcname(HSQUIRRELVM v){ \
+	SQFloat f; \
+	sq_getfloat(v,2,&f); \
+	sq_pushfloat(v,(SQFloat)_funcname(f)); \
+	return 1; \
+}
+
+#define TWO_ARGS_FUNC(_funcname) static SQInteger math_##_funcname(HSQUIRRELVM v){ \
+	SQFloat p1,p2; \
+	sq_getfloat(v,2,&p1); \
+	sq_getfloat(v,3,&p2); \
+	sq_pushfloat(v,(SQFloat)_funcname(p1,p2)); \
+	return 1; \
+}
+
+static SQInteger math_srand(HSQUIRRELVM v)
+{
+	SQInteger i;
+	if(SQ_FAILED(sq_getinteger(v,2,&i)))
+		return sq_throwerror(v,_SC("invalid param"));
+	srand((unsigned int)i);
+	return 0;
+}
+
+static SQInteger math_rand(HSQUIRRELVM v)
+{
+	sq_pushinteger(v,rand());
+	return 1;
+}
+
+static SQInteger math_abs(HSQUIRRELVM v)
+{
+	SQInteger n;
+	sq_getinteger(v,2,&n);
+	sq_pushinteger(v,(SQInteger)abs((int)n));
+	return 1;
+}
+
+SINGLE_ARG_FUNC(sqrt)
+SINGLE_ARG_FUNC(fabs)
+SINGLE_ARG_FUNC(sin)
+SINGLE_ARG_FUNC(cos)
+SINGLE_ARG_FUNC(asin)
+SINGLE_ARG_FUNC(acos)
+SINGLE_ARG_FUNC(log)
+SINGLE_ARG_FUNC(log10)
+SINGLE_ARG_FUNC(tan)
+SINGLE_ARG_FUNC(atan)
+TWO_ARGS_FUNC(atan2)
+TWO_ARGS_FUNC(pow)
+SINGLE_ARG_FUNC(floor)
+SINGLE_ARG_FUNC(ceil)
+SINGLE_ARG_FUNC(exp)
+
+#define _DECL_FUNC(name,nparams,tycheck) {_SC(#name),math_##name,nparams,tycheck}
+static SQRegFunction mathlib_funcs[] = {
+	_DECL_FUNC(sqrt,2,_SC(".n")),
+	_DECL_FUNC(sin,2,_SC(".n")),
+	_DECL_FUNC(cos,2,_SC(".n")),
+	_DECL_FUNC(asin,2,_SC(".n")),
+	_DECL_FUNC(acos,2,_SC(".n")),
+	_DECL_FUNC(log,2,_SC(".n")),
+	_DECL_FUNC(log10,2,_SC(".n")),
+	_DECL_FUNC(tan,2,_SC(".n")),
+	_DECL_FUNC(atan,2,_SC(".n")),
+	_DECL_FUNC(atan2,3,_SC(".nn")),
+	_DECL_FUNC(pow,3,_SC(".nn")),
+	_DECL_FUNC(floor,2,_SC(".n")),
+	_DECL_FUNC(ceil,2,_SC(".n")),
+	_DECL_FUNC(exp,2,_SC(".n")),
+	_DECL_FUNC(srand,2,_SC(".n")),
+	_DECL_FUNC(rand,1,NULL),
+	_DECL_FUNC(fabs,2,_SC(".n")),
+	_DECL_FUNC(abs,2,_SC(".n")),
+	{0,0,0,0},
+};
+
+#ifndef M_PI
+#define M_PI (3.14159265358979323846)
+#endif
+
+SQRESULT sqstd_register_mathlib(HSQUIRRELVM v)
+{
+	SQInteger i=0;
+	while(mathlib_funcs[i].name!=0)	{
+		sq_pushstring(v,mathlib_funcs[i].name,-1);
+		sq_newclosure(v,mathlib_funcs[i].f,0);
+		sq_setparamscheck(v,mathlib_funcs[i].nparamscheck,mathlib_funcs[i].typemask);
+		sq_setnativeclosurename(v,-1,mathlib_funcs[i].name);
+		sq_createslot(v,-3);
+		i++;
+	}
+	sq_pushstring(v,_SC("RAND_MAX"),-1);
+	sq_pushinteger(v,RAND_MAX);
+	sq_createslot(v,-3);
+	sq_pushstring(v,_SC("PI"),-1);
+	sq_pushfloat(v,(SQFloat)M_PI);
+	sq_createslot(v,-3);
+	return SQ_OK;
+}
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdrex.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdrex.cpp
new file mode 100644
index 000000000..f07899d1e
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdrex.cpp
@@ -0,0 +1,635 @@
+/* see copyright notice in squirrel.h */
+#include <squirrel.h>
+#include <string.h>
+#include <ctype.h>
+#include <exception>
+#include "sqstdstring.h"
+
+#ifdef _UNICODE
+#define scisprint iswprint
+#else
+#define scisprint isprint
+#endif
+
+#ifdef _DEBUG
+#include <stdio.h>
+
+static const SQChar *g_nnames[] =
+{
+	_SC("NONE"),_SC("OP_GREEDY"),	_SC("OP_OR"),
+	_SC("OP_EXPR"),_SC("OP_NOCAPEXPR"),_SC("OP_DOT"),	_SC("OP_CLASS"),
+	_SC("OP_CCLASS"),_SC("OP_NCLASS"),_SC("OP_RANGE"),_SC("OP_CHAR"),
+	_SC("OP_EOL"),_SC("OP_BOL"),_SC("OP_WB")
+};
+
+#endif
+
+#define OP_GREEDY		(MAX_CHAR+1) // * + ? {n}
+#define OP_OR			(MAX_CHAR+2)
+#define OP_EXPR			(MAX_CHAR+3) //parentesis ()
+#define OP_NOCAPEXPR	(MAX_CHAR+4) //parentesis (?:)
+#define OP_DOT			(MAX_CHAR+5)
+#define OP_CLASS		(MAX_CHAR+6)
+#define OP_CCLASS		(MAX_CHAR+7)
+#define OP_NCLASS		(MAX_CHAR+8) //negates class the [^
+#define OP_RANGE		(MAX_CHAR+9)
+#define OP_CHAR			(MAX_CHAR+10)
+#define OP_EOL			(MAX_CHAR+11)
+#define OP_BOL			(MAX_CHAR+12)
+#define OP_WB			(MAX_CHAR+13)
+
+#define SQREX_SYMBOL_ANY_CHAR ('.')
+#define SQREX_SYMBOL_GREEDY_ONE_OR_MORE ('+')
+#define SQREX_SYMBOL_GREEDY_ZERO_OR_MORE ('*')
+#define SQREX_SYMBOL_GREEDY_ZERO_OR_ONE ('?')
+#define SQREX_SYMBOL_BRANCH ('|')
+#define SQREX_SYMBOL_END_OF_STRING ('$')
+#define SQREX_SYMBOL_BEGINNING_OF_STRING ('^')
+#define SQREX_SYMBOL_ESCAPE_CHAR ('\\')
+
+
+typedef int SQRexNodeType;
+
+typedef struct tagSQRexNode{
+	SQRexNodeType type;
+	SQInteger left;
+	SQInteger right;
+	SQInteger next;
+}SQRexNode;
+
+struct SQRex{
+	const SQChar *_eol;
+	const SQChar *_bol;
+	const SQChar *_p;
+	SQInteger _first;
+	SQInteger _op;
+	SQRexNode *_nodes;
+	SQInteger _nallocated;
+	SQInteger _nsize;
+	SQInteger _nsubexpr;
+	SQRexMatch *_matches;
+	SQInteger _currsubexp;
+	const SQChar **_error;
+};
+
+static SQInteger sqstd_rex_list(SQRex *exp);
+
+static SQInteger sqstd_rex_newnode(SQRex *exp, SQRexNodeType type)
+{
+	SQRexNode n;
+	n.type = type;
+	n.next = n.right = n.left = -1;
+	if(type == OP_EXPR)
+		n.right = exp->_nsubexpr++;
+	if(exp->_nallocated < (exp->_nsize + 1)) {
+		SQInteger oldsize = exp->_nallocated;
+		exp->_nallocated *= 2;
+		exp->_nodes = (SQRexNode *)sq_realloc(exp->_nodes, oldsize * sizeof(SQRexNode) ,exp->_nallocated * sizeof(SQRexNode));
+	}
+	exp->_nodes[exp->_nsize++] = n;
+	SQInteger newid = exp->_nsize - 1;
+	return (SQInteger)newid;
+}
+
+static void sqstd_rex_error(SQRex *exp,const SQChar *error)
+{
+	if(exp->_error) *exp->_error = error;
+	throw std::exception();
+}
+
+static void sqstd_rex_expect(SQRex *exp, SQChar n){
+	if((*exp->_p) != n)
+		sqstd_rex_error(exp, _SC("expected paren"));
+	exp->_p++;
+}
+
+static SQChar sqstd_rex_escapechar(SQRex *exp)
+{
+	if(*exp->_p == SQREX_SYMBOL_ESCAPE_CHAR){
+		exp->_p++;
+		switch(*exp->_p) {
+		case 'v': exp->_p++; return '\v';
+		case 'n': exp->_p++; return '\n';
+		case 't': exp->_p++; return '\t';
+		case 'r': exp->_p++; return '\r';
+		case 'f': exp->_p++; return '\f';
+		default: return (*exp->_p++);
+		}
+	} else if(!scisprint(*exp->_p)) sqstd_rex_error(exp,_SC("letter expected"));
+	return (*exp->_p++);
+}
+
+static SQInteger sqstd_rex_charclass(SQRex *exp,SQInteger classid)
+{
+	SQInteger n = sqstd_rex_newnode(exp,OP_CCLASS);
+	exp->_nodes[n].left = classid;
+	return n;
+}
+
+static SQInteger sqstd_rex_charnode(SQRex *exp,SQBool isclass)
+{
+	SQChar t;
+	if(*exp->_p == SQREX_SYMBOL_ESCAPE_CHAR) {
+		exp->_p++;
+		switch(*exp->_p) {
+			case 'n': exp->_p++; return sqstd_rex_newnode(exp,'\n');
+			case 't': exp->_p++; return sqstd_rex_newnode(exp,'\t');
+			case 'r': exp->_p++; return sqstd_rex_newnode(exp,'\r');
+			case 'f': exp->_p++; return sqstd_rex_newnode(exp,'\f');
+			case 'v': exp->_p++; return sqstd_rex_newnode(exp,'\v');
+			case 'a': case 'A': case 'w': case 'W': case 's': case 'S':
+			case 'd': case 'D': case 'x': case 'X': case 'c': case 'C':
+			case 'p': case 'P': case 'l': case 'u':
+				{
+				t = *exp->_p; exp->_p++;
+				return sqstd_rex_charclass(exp,t);
+				}
+			case 'b':
+			case 'B':
+				if(!isclass) {
+					SQInteger node = sqstd_rex_newnode(exp,OP_WB);
+					exp->_nodes[node].left = *exp->_p;
+					exp->_p++;
+					return node;
+				} //else default
+			default:
+				t = *exp->_p; exp->_p++;
+				return sqstd_rex_newnode(exp,t);
+		}
+	}
+	else if(!scisprint(*exp->_p)) {
+
+		sqstd_rex_error(exp,_SC("letter expected"));
+	}
+	t = *exp->_p; exp->_p++;
+	return sqstd_rex_newnode(exp,t);
+}
+static SQInteger sqstd_rex_class(SQRex *exp)
+{
+	SQInteger ret = -1;
+	SQInteger first = -1,chain;
+	if(*exp->_p == SQREX_SYMBOL_BEGINNING_OF_STRING){
+		ret = sqstd_rex_newnode(exp,OP_NCLASS);
+		exp->_p++;
+	}else ret = sqstd_rex_newnode(exp,OP_CLASS);
+
+	if(*exp->_p == ']') sqstd_rex_error(exp,_SC("empty class"));
+	chain = ret;
+	while(*exp->_p != ']' && exp->_p != exp->_eol) {
+		if(*exp->_p == '-' && first != -1){
+			SQInteger r;
+			if(*exp->_p++ == ']') sqstd_rex_error(exp,_SC("unfinished range"));
+			r = sqstd_rex_newnode(exp,OP_RANGE);
+			if((SQChar)first>*exp->_p) sqstd_rex_error(exp,_SC("invalid range"));
+			if(exp->_nodes[first].type == OP_CCLASS) sqstd_rex_error(exp,_SC("cannot use character classes in ranges"));
+			exp->_nodes[r].left = exp->_nodes[first].type;
+			SQInteger t = sqstd_rex_escapechar(exp);
+			exp->_nodes[r].right = t;
+            exp->_nodes[chain].next = r;
+			chain = r;
+			first = -1;
+		}
+		else{
+			if(first!=-1){
+				SQInteger c = first;
+				exp->_nodes[chain].next = c;
+				chain = c;
+				first = sqstd_rex_charnode(exp,SQTrue);
+			}
+			else{
+				first = sqstd_rex_charnode(exp,SQTrue);
+			}
+		}
+	}
+	if(first!=-1){
+		SQInteger c = first;
+		exp->_nodes[chain].next = c;
+		chain = c;
+		first = -1;
+	}
+	/* hack? */
+	exp->_nodes[ret].left = exp->_nodes[ret].next;
+	exp->_nodes[ret].next = -1;
+	return ret;
+}
+
+static SQInteger sqstd_rex_parsenumber(SQRex *exp)
+{
+	SQInteger ret = *exp->_p-'0';
+	SQInteger positions = 10;
+	exp->_p++;
+	while(isdigit(*exp->_p)) {
+		ret = ret*10+(*exp->_p++-'0');
+		if(positions==1000000000) sqstd_rex_error(exp,_SC("overflow in numeric constant"));
+		positions *= 10;
+	};
+	return ret;
+}
+
+static SQInteger sqstd_rex_element(SQRex *exp)
+{
+	SQInteger ret = -1;
+	switch(*exp->_p)
+	{
+	case '(': {
+		SQInteger expr;
+		exp->_p++;
+
+
+		if(*exp->_p =='?') {
+			exp->_p++;
+			sqstd_rex_expect(exp,_SC(':'));
+			expr = sqstd_rex_newnode(exp,OP_NOCAPEXPR);
+		}
+		else
+			expr = sqstd_rex_newnode(exp,OP_EXPR);
+		SQInteger newn = sqstd_rex_list(exp);
+		exp->_nodes[expr].left = newn;
+		ret = expr;
+		sqstd_rex_expect(exp,_SC(')'));
+			  }
+			  break;
+	case '[':
+		exp->_p++;
+		ret = sqstd_rex_class(exp);
+		sqstd_rex_expect(exp,_SC(']'));
+		break;
+	case SQREX_SYMBOL_END_OF_STRING: exp->_p++; ret = sqstd_rex_newnode(exp,OP_EOL);break;
+	case SQREX_SYMBOL_ANY_CHAR: exp->_p++; ret = sqstd_rex_newnode(exp,OP_DOT);break;
+	default:
+		ret = sqstd_rex_charnode(exp,SQFalse);
+		break;
+	}
+
+
+	SQInteger op;
+	SQBool isgreedy = SQFalse;
+	unsigned short p0 = 0, p1 = 0;
+	switch(*exp->_p){
+		case SQREX_SYMBOL_GREEDY_ZERO_OR_MORE: p0 = 0; p1 = 0xFFFF; exp->_p++; isgreedy = SQTrue; break;
+		case SQREX_SYMBOL_GREEDY_ONE_OR_MORE: p0 = 1; p1 = 0xFFFF; exp->_p++; isgreedy = SQTrue; break;
+		case SQREX_SYMBOL_GREEDY_ZERO_OR_ONE: p0 = 0; p1 = 1; exp->_p++; isgreedy = SQTrue; break;
+		case '{':
+			exp->_p++;
+			if(!isdigit(*exp->_p)) sqstd_rex_error(exp,_SC("number expected"));
+			p0 = (unsigned short)sqstd_rex_parsenumber(exp);
+			/*******************************/
+			switch(*exp->_p) {
+		case '}':
+			p1 = p0; exp->_p++;
+			break;
+		case ',':
+			exp->_p++;
+			p1 = 0xFFFF;
+			if(isdigit(*exp->_p)){
+				p1 = (unsigned short)sqstd_rex_parsenumber(exp);
+			}
+			sqstd_rex_expect(exp,_SC('}'));
+			break;
+		default:
+			sqstd_rex_error(exp,_SC(", or } expected"));
+			}
+			/*******************************/
+			isgreedy = SQTrue;
+			break;
+
+	}
+	if(isgreedy) {
+		SQInteger nnode = sqstd_rex_newnode(exp,OP_GREEDY);
+		op = OP_GREEDY;
+		exp->_nodes[nnode].left = ret;
+		exp->_nodes[nnode].right = ((p0)<<16)|p1;
+		ret = nnode;
+	}
+
+	if((*exp->_p != SQREX_SYMBOL_BRANCH) && (*exp->_p != ')') && (*exp->_p != SQREX_SYMBOL_GREEDY_ZERO_OR_MORE) && (*exp->_p != SQREX_SYMBOL_GREEDY_ONE_OR_MORE) && (*exp->_p != '\0')) {
+		SQInteger nnode = sqstd_rex_element(exp);
+		exp->_nodes[ret].next = nnode;
+	}
+
+	return ret;
+}
+
+static SQInteger sqstd_rex_list(SQRex *exp)
+{
+	SQInteger ret=-1,e;
+	if(*exp->_p == SQREX_SYMBOL_BEGINNING_OF_STRING) {
+		exp->_p++;
+		ret = sqstd_rex_newnode(exp,OP_BOL);
+	}
+	e = sqstd_rex_element(exp);
+	if(ret != -1) {
+		exp->_nodes[ret].next = e;
+	}
+	else ret = e;
+
+	if(*exp->_p == SQREX_SYMBOL_BRANCH) {
+		SQInteger temp,tright;
+		exp->_p++;
+		temp = sqstd_rex_newnode(exp,OP_OR);
+		exp->_nodes[temp].left = ret;
+		tright = sqstd_rex_list(exp);
+		exp->_nodes[temp].right = tright;
+		ret = temp;
+	}
+	return ret;
+}
+
+static SQBool sqstd_rex_matchcclass(SQInteger cclass,SQChar c)
+{
+	switch(cclass) {
+	case 'a': return isalpha(c)?SQTrue:SQFalse;
+	case 'A': return !isalpha(c)?SQTrue:SQFalse;
+	case 'w': return (isalnum(c) || c == '_')?SQTrue:SQFalse;
+	case 'W': return (!isalnum(c) && c != '_')?SQTrue:SQFalse;
+	case 's': return isspace(c)?SQTrue:SQFalse;
+	case 'S': return !isspace(c)?SQTrue:SQFalse;
+	case 'd': return isdigit(c)?SQTrue:SQFalse;
+	case 'D': return !isdigit(c)?SQTrue:SQFalse;
+	case 'x': return isxdigit(c)?SQTrue:SQFalse;
+	case 'X': return !isxdigit(c)?SQTrue:SQFalse;
+	case 'c': return iscntrl(c)?SQTrue:SQFalse;
+	case 'C': return !iscntrl(c)?SQTrue:SQFalse;
+	case 'p': return ispunct(c)?SQTrue:SQFalse;
+	case 'P': return !ispunct(c)?SQTrue:SQFalse;
+	case 'l': return islower(c)?SQTrue:SQFalse;
+	case 'u': return isupper(c)?SQTrue:SQFalse;
+	}
+	return SQFalse; /*cannot happen*/
+}
+
+static SQBool sqstd_rex_matchclass(SQRex* exp,SQRexNode *node,SQInteger c)
+{
+	do {
+		switch(node->type) {
+			case OP_RANGE:
+				if(c >= node->left && c <= node->right) return SQTrue;
+				break;
+			case OP_CCLASS:
+				if(sqstd_rex_matchcclass(node->left,c)) return SQTrue;
+				break;
+			default:
+				if(c == node->type)return SQTrue;
+		}
+	} while((node->next != -1) && (node = &exp->_nodes[node->next]));
+	return SQFalse;
+}
+
+static const SQChar *sqstd_rex_matchnode(SQRex* exp,SQRexNode *node,const SQChar *str,SQRexNode *next)
+{
+
+	SQRexNodeType type = node->type;
+	switch(type) {
+	case OP_GREEDY: {
+		//SQRexNode *greedystop = (node->next != -1) ? &exp->_nodes[node->next] : NULL;
+		SQRexNode *greedystop = NULL;
+		SQInteger p0 = (node->right >> 16)&0x0000FFFF, p1 = node->right&0x0000FFFF, nmaches = 0;
+		const SQChar *s=str, *good = str;
+
+		if(node->next != -1) {
+			greedystop = &exp->_nodes[node->next];
+		}
+		else {
+			greedystop = next;
+		}
+
+		while((nmaches == 0xFFFF || nmaches < p1)) {
+
+			const SQChar *stop;
+			if(!(s = sqstd_rex_matchnode(exp,&exp->_nodes[node->left],s,greedystop)))
+				break;
+			nmaches++;
+			good=s;
+			if(greedystop) {
+				//checks that 0 matches satisfy the expression(if so skips)
+				//if not would always stop(for instance if is a '?')
+				if(greedystop->type != OP_GREEDY ||
+				(greedystop->type == OP_GREEDY && ((greedystop->right >> 16)&0x0000FFFF) != 0))
+				{
+					SQRexNode *gnext = NULL;
+					if(greedystop->next != -1) {
+						gnext = &exp->_nodes[greedystop->next];
+					}else if(next && next->next != -1){
+						gnext = &exp->_nodes[next->next];
+					}
+					stop = sqstd_rex_matchnode(exp,greedystop,s,gnext);
+					if(stop) {
+						//if satisfied stop it
+						if(p0 == p1 && p0 == nmaches) break;
+						else if(nmaches >= p0 && p1 == 0xFFFF) break;
+						else if(nmaches >= p0 && nmaches <= p1) break;
+					}
+				}
+			}
+
+			if(s >= exp->_eol)
+				break;
+		}
+		if(p0 == p1 && p0 == nmaches) return good;
+		else if(nmaches >= p0 && p1 == 0xFFFF) return good;
+		else if(nmaches >= p0 && nmaches <= p1) return good;
+		return NULL;
+	}
+	case OP_OR: {
+			const SQChar *asd = str;
+			SQRexNode *temp=&exp->_nodes[node->left];
+			while( (asd = sqstd_rex_matchnode(exp,temp,asd,NULL)) ) {
+				if(temp->next != -1)
+					temp = &exp->_nodes[temp->next];
+				else
+					return asd;
+			}
+			asd = str;
+			temp = &exp->_nodes[node->right];
+			while( (asd = sqstd_rex_matchnode(exp,temp,asd,NULL)) ) {
+				if(temp->next != -1)
+					temp = &exp->_nodes[temp->next];
+				else
+					return asd;
+			}
+			return NULL;
+			break;
+	}
+	case OP_EXPR:
+	case OP_NOCAPEXPR:{
+			SQRexNode *n = &exp->_nodes[node->left];
+			const SQChar *cur = str;
+			SQInteger capture = -1;
+			if(node->type != OP_NOCAPEXPR && node->right == exp->_currsubexp) {
+				capture = exp->_currsubexp;
+				exp->_matches[capture].begin = cur;
+				exp->_currsubexp++;
+			}
+
+			do {
+				SQRexNode *subnext = NULL;
+				if(n->next != -1) {
+					subnext = &exp->_nodes[n->next];
+				}else {
+					subnext = next;
+				}
+				if(!(cur = sqstd_rex_matchnode(exp,n,cur,subnext))) {
+					if(capture != -1){
+						exp->_matches[capture].begin = 0;
+						exp->_matches[capture].len = 0;
+					}
+					return NULL;
+				}
+			} while((n->next != -1) && (n = &exp->_nodes[n->next]));
+
+			if(capture != -1)
+				exp->_matches[capture].len = cur - exp->_matches[capture].begin;
+			return cur;
+	}
+	case OP_WB:
+		if((str == exp->_bol && !isspace(*str))
+		 || (str == exp->_eol && !isspace(*(str-1)))
+		 || (!isspace(*str) && isspace(*(str+1)))
+		 || (isspace(*str) && !isspace(*(str+1))) ) {
+			return (node->left == 'b')?str:NULL;
+		}
+		return (node->left == 'b')?NULL:str;
+	case OP_BOL:
+		if(str == exp->_bol) return str;
+		return NULL;
+	case OP_EOL:
+		if(str == exp->_eol) return str;
+		return NULL;
+	case OP_DOT:{
+		*str++;
+				}
+		return str;
+	case OP_NCLASS:
+	case OP_CLASS:
+		if(sqstd_rex_matchclass(exp,&exp->_nodes[node->left],*str)?(type == OP_CLASS?SQTrue:SQFalse):(type == OP_NCLASS?SQTrue:SQFalse)) {
+			*str++;
+			return str;
+		}
+		return NULL;
+	case OP_CCLASS:
+		if(sqstd_rex_matchcclass(node->left,*str)) {
+			*str++;
+			return str;
+		}
+		return NULL;
+	default: /* char */
+		if(*str != (SQChar)node->type) return NULL;
+		*str++;
+		return str;
+	}
+	return NULL;
+}
+
+/* public api */
+SQRex *sqstd_rex_compile(const SQChar *pattern,const SQChar **error)
+{
+	SQRex *exp = (SQRex *)sq_malloc(sizeof(SQRex));
+	exp->_eol = exp->_bol = NULL;
+	exp->_p = pattern;
+	exp->_nallocated = (SQInteger)scstrlen(pattern) * sizeof(SQChar);
+	exp->_nodes = (SQRexNode *)sq_malloc(exp->_nallocated * sizeof(SQRexNode));
+	exp->_nsize = 0;
+	exp->_matches = 0;
+	exp->_nsubexpr = 0;
+	exp->_first = sqstd_rex_newnode(exp,OP_EXPR);
+	exp->_error = error;
+	try {
+		SQInteger res = sqstd_rex_list(exp);
+		exp->_nodes[exp->_first].left = res;
+		if(*exp->_p!='\0')
+			sqstd_rex_error(exp,_SC("unexpected character"));
+#ifdef _DEBUG
+		{
+			SQInteger nsize,i;
+			SQRexNode *t;
+			nsize = exp->_nsize;
+			t = &exp->_nodes[0];
+			scprintf(_SC("\n"));
+			/* XXX -- The (int) casts are needed to silent warnings on 64bit systems (SQInteger is 64bit, %d assumes 32bit, (int) is 32bit) */
+			for(i = 0;i < nsize; i++) {
+				if(exp->_nodes[i].type>MAX_CHAR)
+					scprintf(_SC("[%02d] %10s "),(int)i,g_nnames[exp->_nodes[i].type-MAX_CHAR]);
+				else
+					scprintf(_SC("[%02d] %10c "),(int)i,exp->_nodes[i].type);
+				scprintf(_SC("left %02d right %02d next %02d\n"),(int)exp->_nodes[i].left,(int)exp->_nodes[i].right,(int)exp->_nodes[i].next);
+			}
+			scprintf(_SC("\n"));
+		}
+#endif
+		exp->_matches = (SQRexMatch *) sq_malloc(exp->_nsubexpr * sizeof(SQRexMatch));
+		memset(exp->_matches,0,exp->_nsubexpr * sizeof(SQRexMatch));
+		return exp;
+	}
+	catch (...) {
+		sqstd_rex_free(exp);
+		return NULL;
+	}
+}
+
+void sqstd_rex_free(SQRex *exp)
+{
+	if(exp)	{
+		if(exp->_nodes) sq_free(exp->_nodes,exp->_nallocated * sizeof(SQRexNode));
+		if(exp->_matches) sq_free(exp->_matches,exp->_nsubexpr * sizeof(SQRexMatch));
+		sq_free(exp,sizeof(SQRex));
+	}
+}
+
+SQBool sqstd_rex_match(SQRex* exp,const SQChar* text)
+{
+	const SQChar* res = NULL;
+	exp->_bol = text;
+	exp->_eol = text + scstrlen(text);
+	exp->_currsubexp = 0;
+	res = sqstd_rex_matchnode(exp,exp->_nodes,text,NULL);
+	if(res == NULL || res != exp->_eol)
+		return SQFalse;
+	return SQTrue;
+}
+
+SQBool sqstd_rex_searchrange(SQRex* exp,const SQChar* text_begin,const SQChar* text_end,const SQChar** out_begin, const SQChar** out_end)
+{
+	const SQChar *cur = NULL;
+	SQInteger node = exp->_first;
+	if(text_begin >= text_end) return SQFalse;
+	exp->_bol = text_begin;
+	exp->_eol = text_end;
+	do {
+		cur = text_begin;
+		while(node != -1) {
+			exp->_currsubexp = 0;
+			cur = sqstd_rex_matchnode(exp,&exp->_nodes[node],cur,NULL);
+			if(!cur)
+				break;
+			node = exp->_nodes[node].next;
+		}
+		*text_begin++;
+	} while(cur == NULL && text_begin != text_end);
+
+	if(cur == NULL)
+		return SQFalse;
+
+	--text_begin;
+
+	if(out_begin) *out_begin = text_begin;
+	if(out_end) *out_end = cur;
+	return SQTrue;
+}
+
+SQBool sqstd_rex_search(SQRex* exp,const SQChar* text, const SQChar** out_begin, const SQChar** out_end)
+{
+	return sqstd_rex_searchrange(exp,text,text + scstrlen(text),out_begin,out_end);
+}
+
+SQInteger sqstd_rex_getsubexpcount(SQRex* exp)
+{
+	return exp->_nsubexpr;
+}
+
+SQBool sqstd_rex_getsubexp(SQRex* exp, SQInteger n, SQRexMatch *subexp)
+{
+	if( n<0 || n >= exp->_nsubexpr) return SQFalse;
+	*subexp = exp->_matches[n];
+	return SQTrue;
+}
+
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdstream.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdstream.cpp
new file mode 100644
index 000000000..147fc66ca
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdstream.cpp
@@ -0,0 +1,330 @@
+/* see copyright notice in squirrel.h */
+#include <stdio.h>
+#include <new>
+#include <stdlib.h>
+#include <string.h>
+#include <squirrel.h>
+#include <sqstdio.h>
+#include <sqstdblob.h>
+#include "sqstdstream.h"
+#include "sqstdblobimpl.h"
+
+#define SETUP_STREAM(v) \
+	SQStream *self = NULL; \
+	if(SQ_FAILED(sq_getinstanceup(v,1,(SQUserPointer*)&self,(SQUserPointer)SQSTD_STREAM_TYPE_TAG))) \
+		return sq_throwerror(v,_SC("invalid type tag")); \
+	if(!self->IsValid())  \
+		return sq_throwerror(v,_SC("the stream is invalid"));
+
+SQInteger _stream_readblob(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	SQUserPointer data,blobp;
+	SQInteger size,res;
+	sq_getinteger(v,2,&size);
+	if(size > self->Len()) {
+		size = self->Len();
+	}
+	data = sq_getscratchpad(v,size);
+	res = self->Read(data,size);
+	if(res <= 0)
+		return sq_throwerror(v,_SC("no data left to read"));
+	blobp = sqstd_createblob(v,res);
+	memcpy(blobp,data,res);
+	return 1;
+}
+
+#define SAFE_READN(ptr,len) { \
+	if(self->Read(ptr,len) != len) return sq_throwerror(v,_SC("io error")); \
+	}
+SQInteger _stream_readn(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	SQInteger format;
+	sq_getinteger(v, 2, &format);
+	switch(format) {
+	case 'l': {
+		SQInteger i;
+		SAFE_READN(&i, sizeof(i));
+		sq_pushinteger(v, i);
+			  }
+		break;
+	case 'i': {
+		SQInt32 i;
+		SAFE_READN(&i, sizeof(i));
+		sq_pushinteger(v, i);
+			  }
+		break;
+	case 's': {
+		short s;
+		SAFE_READN(&s, sizeof(short));
+		sq_pushinteger(v, s);
+			  }
+		break;
+	case 'w': {
+		unsigned short w;
+		SAFE_READN(&w, sizeof(unsigned short));
+		sq_pushinteger(v, w);
+			  }
+		break;
+	case 'c': {
+		char c;
+		SAFE_READN(&c, sizeof(char));
+		sq_pushinteger(v, c);
+			  }
+		break;
+	case 'b': {
+		unsigned char c;
+		SAFE_READN(&c, sizeof(unsigned char));
+		sq_pushinteger(v, c);
+			  }
+		break;
+	case 'f': {
+		float f;
+		SAFE_READN(&f, sizeof(float));
+		sq_pushfloat(v, f);
+			  }
+		break;
+	case 'd': {
+		double d;
+		SAFE_READN(&d, sizeof(double));
+		sq_pushfloat(v, (SQFloat)d);
+			  }
+		break;
+	default:
+		return sq_throwerror(v, _SC("invalid format"));
+	}
+	return 1;
+}
+
+SQInteger _stream_writeblob(HSQUIRRELVM v)
+{
+	SQUserPointer data;
+	SQInteger size;
+	SETUP_STREAM(v);
+	if(SQ_FAILED(sqstd_getblob(v,2,&data)))
+		return sq_throwerror(v,_SC("invalid parameter"));
+	size = sqstd_getblobsize(v,2);
+	if(self->Write(data,size) != size)
+		return sq_throwerror(v,_SC("io error"));
+	sq_pushinteger(v,size);
+	return 1;
+}
+
+SQInteger _stream_writen(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	SQInteger format, ti;
+	SQFloat tf;
+	sq_getinteger(v, 3, &format);
+	switch(format) {
+	case 'l': {
+		SQInteger i;
+		sq_getinteger(v, 2, &ti);
+		i = ti;
+		self->Write(&i, sizeof(SQInteger));
+			  }
+		break;
+	case 'i': {
+		SQInt32 i;
+		sq_getinteger(v, 2, &ti);
+		i = (SQInt32)ti;
+		self->Write(&i, sizeof(SQInt32));
+			  }
+		break;
+	case 's': {
+		short s;
+		sq_getinteger(v, 2, &ti);
+		s = (short)ti;
+		self->Write(&s, sizeof(short));
+			  }
+		break;
+	case 'w': {
+		unsigned short w;
+		sq_getinteger(v, 2, &ti);
+		w = (unsigned short)ti;
+		self->Write(&w, sizeof(unsigned short));
+			  }
+		break;
+	case 'c': {
+		char c;
+		sq_getinteger(v, 2, &ti);
+		c = (char)ti;
+		self->Write(&c, sizeof(char));
+				  }
+		break;
+	case 'b': {
+		unsigned char b;
+		sq_getinteger(v, 2, &ti);
+		b = (unsigned char)ti;
+		self->Write(&b, sizeof(unsigned char));
+			  }
+		break;
+	case 'f': {
+		float f;
+		sq_getfloat(v, 2, &tf);
+		f = (float)tf;
+		self->Write(&f, sizeof(float));
+			  }
+		break;
+	case 'd': {
+		double d;
+		sq_getfloat(v, 2, &tf);
+		d = tf;
+		self->Write(&d, sizeof(double));
+			  }
+		break;
+	default:
+		return sq_throwerror(v, _SC("invalid format"));
+	}
+	return 0;
+}
+
+SQInteger _stream_seek(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	SQInteger offset, origin = SQ_SEEK_SET;
+	sq_getinteger(v, 2, &offset);
+	if(sq_gettop(v) > 2) {
+		SQInteger t;
+		sq_getinteger(v, 3, &t);
+		switch(t) {
+			case 'b': origin = SQ_SEEK_SET; break;
+			case 'c': origin = SQ_SEEK_CUR; break;
+			case 'e': origin = SQ_SEEK_END; break;
+			default: return sq_throwerror(v,_SC("invalid origin"));
+		}
+	}
+	sq_pushinteger(v, self->Seek(offset, origin));
+	return 1;
+}
+
+SQInteger _stream_tell(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	sq_pushinteger(v, self->Tell());
+	return 1;
+}
+
+SQInteger _stream_len(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	sq_pushinteger(v, self->Len());
+	return 1;
+}
+
+SQInteger _stream_flush(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	if(!self->Flush())
+		sq_pushinteger(v, 1);
+	else
+		sq_pushnull(v);
+	return 1;
+}
+
+SQInteger _stream_eos(HSQUIRRELVM v)
+{
+	SETUP_STREAM(v);
+	if(self->EOS())
+		sq_pushinteger(v, 1);
+	else
+		sq_pushnull(v);
+	return 1;
+}
+
+static SQRegFunction _stream_methods[] = {
+	_DECL_STREAM_FUNC(readblob,2,_SC("xn")),
+	_DECL_STREAM_FUNC(readn,2,_SC("xn")),
+	_DECL_STREAM_FUNC(writeblob,-2,_SC("xx")),
+	_DECL_STREAM_FUNC(writen,3,_SC("xnn")),
+	_DECL_STREAM_FUNC(seek,-2,_SC("xnn")),
+	_DECL_STREAM_FUNC(tell,1,_SC("x")),
+	_DECL_STREAM_FUNC(len,1,_SC("x")),
+	_DECL_STREAM_FUNC(eos,1,_SC("x")),
+	_DECL_STREAM_FUNC(flush,1,_SC("x")),
+	{0,0,0,0}
+};
+
+void init_streamclass(HSQUIRRELVM v)
+{
+	sq_pushregistrytable(v);
+	sq_pushstring(v,_SC("std_stream"),-1);
+	if(SQ_FAILED(sq_get(v,-2))) {
+		sq_pushstring(v,_SC("std_stream"),-1);
+		sq_newclass(v,SQFalse);
+		sq_settypetag(v,-1,(SQUserPointer)SQSTD_STREAM_TYPE_TAG);
+		SQInteger i = 0;
+		while(_stream_methods[i].name != 0) {
+			SQRegFunction &f = _stream_methods[i];
+			sq_pushstring(v,f.name,-1);
+			sq_newclosure(v,f.f,0);
+			sq_setparamscheck(v,f.nparamscheck,f.typemask);
+			sq_createslot(v,-3);
+			i++;
+		}
+		sq_createslot(v,-3);
+		sq_pushroottable(v);
+		sq_pushstring(v,_SC("stream"),-1);
+		sq_pushstring(v,_SC("std_stream"),-1);
+		sq_get(v,-4);
+		sq_createslot(v,-3);
+		sq_pop(v,1);
+	}
+	else {
+		sq_pop(v,1); //result
+	}
+	sq_pop(v,1);
+}
+
+SQRESULT declare_stream(HSQUIRRELVM v,const SQChar* name,SQUserPointer typetag,const SQChar* reg_name,SQRegFunction *methods,SQRegFunction *globals)
+{
+	if(sq_gettype(v,-1) != OT_TABLE)
+		return sq_throwerror(v,_SC("table expected"));
+	SQInteger top = sq_gettop(v);
+	//create delegate
+    init_streamclass(v);
+	sq_pushregistrytable(v);
+	sq_pushstring(v,reg_name,-1);
+	sq_pushstring(v,_SC("std_stream"),-1);
+	if(SQ_SUCCEEDED(sq_get(v,-3))) {
+		sq_newclass(v,SQTrue);
+		sq_settypetag(v,-1,typetag);
+		SQInteger i = 0;
+		while(methods[i].name != 0) {
+			SQRegFunction &f = methods[i];
+			sq_pushstring(v,f.name,-1);
+			sq_newclosure(v,f.f,0);
+			sq_setparamscheck(v,f.nparamscheck,f.typemask);
+			sq_setnativeclosurename(v,-1,f.name);
+			sq_createslot(v,-3);
+			i++;
+		}
+		sq_createslot(v,-3);
+		sq_pop(v,1);
+
+		i = 0;
+		while(globals[i].name!=0)
+		{
+			SQRegFunction &f = globals[i];
+			sq_pushstring(v,f.name,-1);
+			sq_newclosure(v,f.f,0);
+			sq_setparamscheck(v,f.nparamscheck,f.typemask);
+			sq_setnativeclosurename(v,-1,f.name);
+			sq_createslot(v,-3);
+			i++;
+		}
+		//register the class in the target table
+		sq_pushstring(v,name,-1);
+		sq_pushregistrytable(v);
+		sq_pushstring(v,reg_name,-1);
+		sq_get(v,-2);
+		sq_remove(v,-2);
+		sq_createslot(v,-3);
+
+		sq_settop(v,top);
+		return SQ_OK;
+	}
+	sq_settop(v,top);
+	return SQ_ERROR;
+}
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdstream.h b/src/3rdparty/squirrel/sqstdlib/sqstdstream.h
new file mode 100644
index 000000000..4dcc00054
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdstream.h
@@ -0,0 +1,18 @@
+/*	see copyright notice in squirrel.h */
+#ifndef _SQSTD_STREAM_H_
+#define _SQSTD_STREAM_H_
+
+SQInteger _stream_readblob(HSQUIRRELVM v);
+SQInteger _stream_readline(HSQUIRRELVM v);
+SQInteger _stream_readn(HSQUIRRELVM v);
+SQInteger _stream_writeblob(HSQUIRRELVM v);
+SQInteger _stream_writen(HSQUIRRELVM v);
+SQInteger _stream_seek(HSQUIRRELVM v);
+SQInteger _stream_tell(HSQUIRRELVM v);
+SQInteger _stream_len(HSQUIRRELVM v);
+SQInteger _stream_eos(HSQUIRRELVM v);
+SQInteger _stream_flush(HSQUIRRELVM v);
+
+#define _DECL_STREAM_FUNC(name,nparams,typecheck) {_SC(#name),_stream_##name,nparams,typecheck}
+SQRESULT declare_stream(HSQUIRRELVM v,const SQChar* name,SQUserPointer typetag,const SQChar* reg_name,SQRegFunction *methods,SQRegFunction *globals);
+#endif /*_SQSTD_STREAM_H_*/
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdstring.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdstring.cpp
new file mode 100644
index 000000000..00b1667e0
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdstring.cpp
@@ -0,0 +1,364 @@
+/* see copyright notice in squirrel.h */
+#include <squirrel.h>
+#include <sqstdstring.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <assert.h>
+#include <stdarg.h>
+
+#ifdef SQUNICODE
+#define scstrchr wcschr
+#define scatoi _wtoi
+#define scstrtok wcstok
+#else
+#define scstrchr strchr
+#define scatoi atoi
+#define scstrtok strtok
+#endif
+#define MAX_FORMAT_LEN	20
+#define MAX_WFORMAT_LEN	3
+#define ADDITIONAL_FORMAT_SPACE (100*sizeof(SQChar))
+
+static SQInteger validate_format(HSQUIRRELVM v, SQChar *fmt, const SQChar *src, SQInteger n,SQInteger &width)
+{
+	SQChar swidth[MAX_WFORMAT_LEN];
+	SQInteger wc = 0;
+	SQInteger start = n;
+	fmt[0] = '%';
+	while (scstrchr(_SC("-+ #0"), src[n])) n++;
+	while (scisdigit(src[n])) {
+		swidth[wc] = src[n];
+		n++;
+		wc++;
+		if(wc>=MAX_WFORMAT_LEN)
+			return sq_throwerror(v,_SC("width format too long"));
+	}
+	swidth[wc] = '\0';
+	if(wc > 0) {
+		width = scatoi(swidth);
+	}
+	else
+		width = 0;
+	if (src[n] == '.') {
+	    n++;
+
+		wc = 0;
+		while (scisdigit(src[n])) {
+			swidth[wc] = src[n];
+			n++;
+			wc++;
+			if(wc>=MAX_WFORMAT_LEN)
+				return sq_throwerror(v,_SC("precision format too long"));
+		}
+		swidth[wc] = '\0';
+		if(wc > 0) {
+			width += scatoi(swidth);
+		}
+	}
+	if (n-start > MAX_FORMAT_LEN )
+		return sq_throwerror(v,_SC("format too long"));
+	memcpy(&fmt[1],&src[start],((n-start)+1)*sizeof(SQChar));
+	fmt[(n-start)+2] = '\0';
+	return n;
+}
+
+/*
+ * Little hack to remove the "format not a string literal, argument types not checked" warning.
+ * This check has been added to OpenTTD to make sure that nobody passes wrong string literals,
+ * but three lines in Squirrel have a little problem with those. Therefor we use this hack
+ * which basically uses vsnprintf instead of sprintf as vsnprintf is not testing for the right
+ * string literal at compile time.
+ */
+static void _append_string(SQInteger &i, SQChar *dest, SQInteger allocated, const SQChar *fmt, ...)
+{
+	va_list va;
+	va_start(va, fmt);
+	i += scvsnprintf(&dest[i],allocated-i,fmt,va);
+	va_end(va);
+}
+
+static SQInteger _string_format(HSQUIRRELVM v)
+{
+	const SQChar *format;
+	SQChar *dest;
+	SQChar fmt[MAX_FORMAT_LEN];
+	sq_getstring(v,2,&format);
+	SQInteger allocated = (sq_getsize(v,2)+1)*sizeof(SQChar);
+	dest = sq_getscratchpad(v,allocated);
+	SQInteger n = 0,i = 0, nparam = 3, w = 0;
+	while(format[n] != '\0') {
+		if(format[n] != '%') {
+			assert(i < allocated);
+			dest[i++] = format[n];
+			n++;
+		}
+		else if(format[n+1] == '%') { //handles %%
+				dest[i++] = '%';
+				n += 2;
+		}
+		else {
+			n++;
+			if( nparam > sq_gettop(v) )
+				return sq_throwerror(v,_SC("not enough paramters for the given format string"));
+			n = validate_format(v,fmt,format,n,w);
+			if(n < 0) return -1;
+			SQInteger addlen = 0;
+			SQInteger valtype = 0;
+			const SQChar *ts;
+			SQInteger ti;
+			SQFloat tf;
+			switch(format[n]) {
+			case 's':
+				if(SQ_FAILED(sq_getstring(v,nparam,&ts)))
+					return sq_throwerror(v,_SC("string expected for the specified format"));
+				addlen = (sq_getsize(v,nparam)*sizeof(SQChar))+((w+1)*sizeof(SQChar));
+				valtype = 's';
+				break;
+			case 'i': case 'd': case 'c':case 'o':  case 'u':  case 'x':  case 'X':
+				if(SQ_FAILED(sq_getinteger(v,nparam,&ti)))
+					return sq_throwerror(v,_SC("integer expected for the specified format"));
+				addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
+				valtype = 'i';
+				break;
+			case 'f': case 'g': case 'G': case 'e':  case 'E':
+				if(SQ_FAILED(sq_getfloat(v,nparam,&tf)))
+					return sq_throwerror(v,_SC("float expected for the specified format"));
+				addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
+				valtype = 'f';
+				break;
+			default:
+				return sq_throwerror(v,_SC("invalid format"));
+			}
+			n++;
+			allocated += addlen;
+			dest = sq_getscratchpad(v,allocated);
+			switch(valtype) {
+			case 's': _append_string(i,dest,allocated,fmt,ts); break;
+			case 'i': _append_string(i,dest,allocated,fmt,ti); break;
+			case 'f': _append_string(i,dest,allocated,fmt,tf); break;
+			};
+			nparam ++;
+		}
+	}
+	sq_pushstring(v,dest,i);
+	return 1;
+}
+
+static void __strip_l(const SQChar *str,const SQChar **start)
+{
+	const SQChar *t = str;
+	while(((*t) != '\0') && scisspace(*t)){ t++; }
+	*start = t;
+}
+
+static void __strip_r(const SQChar *str,SQInteger len,const SQChar **end)
+{
+	if(len == 0) {
+		*end = str;
+		return;
+	}
+	const SQChar *t = &str[len-1];
+	while(t != str && scisspace(*t)) { t--; }
+	*end = t+1;
+}
+
+static SQInteger _string_strip(HSQUIRRELVM v)
+{
+	const SQChar *str,*start,*end;
+	sq_getstring(v,2,&str);
+	SQInteger len = sq_getsize(v,2);
+	__strip_l(str,&start);
+	__strip_r(str,len,&end);
+	sq_pushstring(v,start,end - start);
+	return 1;
+}
+
+static SQInteger _string_lstrip(HSQUIRRELVM v)
+{
+	const SQChar *str,*start;
+	sq_getstring(v,2,&str);
+	__strip_l(str,&start);
+	sq_pushstring(v,start,-1);
+	return 1;
+}
+
+static SQInteger _string_rstrip(HSQUIRRELVM v)
+{
+	const SQChar *str,*end;
+	sq_getstring(v,2,&str);
+	SQInteger len = sq_getsize(v,2);
+	__strip_r(str,len,&end);
+	sq_pushstring(v,str,end - str);
+	return 1;
+}
+
+static SQInteger _string_split(HSQUIRRELVM v)
+{
+	const SQChar *str,*seps;
+	SQChar *stemp,*tok;
+	sq_getstring(v,2,&str);
+	sq_getstring(v,3,&seps);
+	if(sq_getsize(v,3) == 0) return sq_throwerror(v,_SC("empty separators string"));
+	SQInteger memsize = (sq_getsize(v,2)+1)*sizeof(SQChar);
+	stemp = sq_getscratchpad(v,memsize);
+	memcpy(stemp,str,memsize);
+	tok = scstrtok(stemp,seps);
+	sq_newarray(v,0);
+	while( tok != NULL ) {
+		sq_pushstring(v,tok,-1);
+		sq_arrayappend(v,-2);
+		tok = scstrtok( NULL, seps );
+	}
+	return 1;
+}
+
+#define SETUP_REX(v) \
+	SQRex *self = NULL; \
+	sq_getinstanceup(v,1,(SQUserPointer *)&self,0);
+
+static SQInteger _rexobj_releasehook(SQUserPointer p, SQInteger size)
+{
+	SQRex *self = ((SQRex *)p);
+	sqstd_rex_free(self);
+	return 1;
+}
+
+static SQInteger _regexp_match(HSQUIRRELVM v)
+{
+	SETUP_REX(v);
+	const SQChar *str;
+	sq_getstring(v,2,&str);
+	if(sqstd_rex_match(self,str) == SQTrue)
+	{
+		sq_pushbool(v,SQTrue);
+		return 1;
+	}
+	sq_pushbool(v,SQFalse);
+	return 1;
+}
+
+static void _addrexmatch(HSQUIRRELVM v,const SQChar *str,const SQChar *begin,const SQChar *end)
+{
+	sq_newtable(v);
+	sq_pushstring(v,_SC("begin"),-1);
+	sq_pushinteger(v,begin - str);
+	sq_rawset(v,-3);
+	sq_pushstring(v,_SC("end"),-1);
+	sq_pushinteger(v,end - str);
+	sq_rawset(v,-3);
+}
+
+static SQInteger _regexp_search(HSQUIRRELVM v)
+{
+	SETUP_REX(v);
+	const SQChar *str,*begin,*end;
+	SQInteger start = 0;
+	sq_getstring(v,2,&str);
+	if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
+	if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
+		_addrexmatch(v,str,begin,end);
+		return 1;
+	}
+	return 0;
+}
+
+static SQInteger _regexp_capture(HSQUIRRELVM v)
+{
+	SETUP_REX(v);
+	const SQChar *str,*begin,*end;
+	SQInteger start = 0;
+	sq_getstring(v,2,&str);
+	if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
+	if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
+		SQInteger n = sqstd_rex_getsubexpcount(self);
+		SQRexMatch match;
+		sq_newarray(v,0);
+		for(SQInteger i = 0;i < n; i++) {
+			sqstd_rex_getsubexp(self,i,&match);
+			if(match.len > 0)
+				_addrexmatch(v,str,match.begin,match.begin+match.len);
+			else
+				_addrexmatch(v,str,str,str); //empty match
+			sq_arrayappend(v,-2);
+		}
+		return 1;
+	}
+	return 0;
+}
+
+static SQInteger _regexp_subexpcount(HSQUIRRELVM v)
+{
+	SETUP_REX(v);
+	sq_pushinteger(v,sqstd_rex_getsubexpcount(self));
+	return 1;
+}
+
+static SQInteger _regexp_constructor(HSQUIRRELVM v)
+{
+	const SQChar *error,*pattern;
+	sq_getstring(v,2,&pattern);
+	SQRex *rex = sqstd_rex_compile(pattern,&error);
+	if(!rex) return sq_throwerror(v,error);
+	sq_setinstanceup(v,1,rex);
+	sq_setreleasehook(v,1,_rexobj_releasehook);
+	return 0;
+}
+
+static SQInteger _regexp__typeof(HSQUIRRELVM v)
+{
+	sq_pushstring(v,_SC("regexp"),-1);
+	return 1;
+}
+
+#define _DECL_REX_FUNC(name,nparams,pmask) {_SC(#name),_regexp_##name,nparams,pmask}
+static SQRegFunction rexobj_funcs[]={
+	_DECL_REX_FUNC(constructor,2,_SC(".s")),
+	_DECL_REX_FUNC(search,-2,_SC("xsn")),
+	_DECL_REX_FUNC(match,2,_SC("xs")),
+	_DECL_REX_FUNC(capture,-2,_SC("xsn")),
+	_DECL_REX_FUNC(subexpcount,1,_SC("x")),
+	_DECL_REX_FUNC(_typeof,1,_SC("x")),
+	{0,0,0,0}
+};
+
+#define _DECL_FUNC(name,nparams,pmask) {_SC(#name),_string_##name,nparams,pmask}
+static SQRegFunction stringlib_funcs[]={
+	_DECL_FUNC(format,-2,_SC(".s")),
+	_DECL_FUNC(strip,2,_SC(".s")),
+	_DECL_FUNC(lstrip,2,_SC(".s")),
+	_DECL_FUNC(rstrip,2,_SC(".s")),
+	_DECL_FUNC(split,3,_SC(".ss")),
+	{0,0,0,0}
+};
+
+
+SQInteger sqstd_register_stringlib(HSQUIRRELVM v)
+{
+	sq_pushstring(v,_SC("regexp"),-1);
+	sq_newclass(v,SQFalse);
+	SQInteger i = 0;
+	while(rexobj_funcs[i].name != 0) {
+		SQRegFunction &f = rexobj_funcs[i];
+		sq_pushstring(v,f.name,-1);
+		sq_newclosure(v,f.f,0);
+		sq_setparamscheck(v,f.nparamscheck,f.typemask);
+		sq_setnativeclosurename(v,-1,f.name);
+		sq_createslot(v,-3);
+		i++;
+	}
+	sq_createslot(v,-3);
+
+	i = 0;
+	while(stringlib_funcs[i].name!=0)
+	{
+		sq_pushstring(v,stringlib_funcs[i].name,-1);
+		sq_newclosure(v,stringlib_funcs[i].f,0);
+		sq_setparamscheck(v,stringlib_funcs[i].nparamscheck,stringlib_funcs[i].typemask);
+		sq_setnativeclosurename(v,-1,stringlib_funcs[i].name);
+		sq_createslot(v,-3);
+		i++;
+	}
+	return 1;
+}
diff --git a/src/3rdparty/squirrel/sqstdlib/sqstdsystem.cpp b/src/3rdparty/squirrel/sqstdlib/sqstdsystem.cpp
new file mode 100644
index 000000000..e1fcdfbd9
--- /dev/null
+++ b/src/3rdparty/squirrel/sqstdlib/sqstdsystem.cpp
@@ -0,0 +1,147 @@
+/* see copyright notice in squirrel.h */
+#include <squirrel.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sqstdsystem.h>
+
+#ifdef SQUNICODE
+#include <wchar.h>
+#define scgetenv _wgetenv
+#define scsystem _wsystem
+#define scasctime _wasctime
+#define scremove _wremove
+#define screname _wrename
+#else
+#define scgetenv getenv
+#define scsystem system
+#define scasctime asctime
+#define scremove remove
+#define screname rename
+#endif
+
+static SQInteger _system_getenv(HSQUIRRELVM v)
+{
+	const SQChar *s;
+	if(SQ_SUCCEEDED(sq_getstring(v,2,&s))){
+        sq_pushstring(v,scgetenv(s),-1);
+		return 1;
+	}
+	return 0;
+}
+
+
+static SQInteger _system_system(HSQUIRRELVM v)
+{
+	const SQChar *s;
+	if(SQ_SUCCEEDED(sq_getstring(v,2,&s))){
+		sq_pushinteger(v,scsystem(s));
+		return 1;
+	}
+	return sq_throwerror(v,_SC("wrong param"));
+}
+
+
+static SQInteger _system_clock(HSQUIRRELVM v)
+{
+	sq_pushfloat(v,((SQFloat)clock())/(SQFloat)CLOCKS_PER_SEC);
+	return 1;
+}
+
+static SQInteger _system_time(HSQUIRRELVM v)
+{
+	time_t t;
+	time(&t);
+	sq_pushinteger(v,*((SQInteger *)&t));
+	return 1;
+}
+
+static SQInteger _system_remove(HSQUIRRELVM v)
+{
+	const SQChar *s;
+	sq_getstring(v,2,&s);
+	if(scremove(s)==-1)
+		return sq_throwerror(v,_SC("remove() failed"));
+	return 0;
+}
+
+static SQInteger _system_rename(HSQUIRRELVM v)
+{
+	const SQChar *oldn,*newn;
+	sq_getstring(v,2,&oldn);
+	sq_getstring(v,3,&newn);
+	if(screname(oldn,newn)==-1)
+		return sq_throwerror(v,_SC("rename() failed"));
+	return 0;
+}
+
+static void _set_integer_slot(HSQUIRRELVM v,const SQChar *name,SQInteger val)
+{
+	sq_pushstring(v,name,-1);
+	sq_pushinteger(v,val);
+	sq_rawset(v,-3);
+}
+
+static SQInteger _system_date(HSQUIRRELVM v)
+{
+	time_t t;
+	SQInteger it;
+	SQInteger format = 'l';
+	if(sq_gettop(v) > 1) {
+		sq_getinteger(v,2,&it);
+		t = it;
+		if(sq_gettop(v) > 2) {
+			sq_getinteger(v,3,(SQInteger*)&format);
+		}
+	}
+	else {
+		time(&t);
+	}
+	tm *date;
+    if(format == 'u')
+		date = gmtime(&t);
+	else
+		date = localtime(&t);
+	if(!date)
+		return sq_throwerror(v,_SC("crt api failure"));
+	sq_newtable(v);
+	_set_integer_slot(v, _SC("sec"), date->tm_sec);
+    _set_integer_slot(v, _SC("min"), date->tm_min);
+    _set_integer_slot(v, _SC("hour"), date->tm_hour);
+    _set_integer_slot(v, _SC("day"), date->tm_mday);
+    _set_integer_slot(v, _SC("month"), date->tm_mon);
+    _set_integer_slot(v, _SC("year"), date->tm_year+1900);
+    _set_integer_slot(v, _SC("wday"), date->tm_wday);
+    _set_integer_slot(v, _SC("yday"), date->tm_yday);
+	return 1;
+}
+
+
+
+#define _DECL_FUNC(name,nparams,pmask) {_SC(#name),_system_##name,nparams,pmask}
+static SQRegFunction systemlib_funcs[]={
+	_DECL_FUNC(getenv,2,_SC(".s")),
+	_DECL_FUNC(system,2,_SC(".s")),
+	_DECL_FUNC(clock,1,NULL),
+	_DECL_FUNC(time,1,NULL),
+	_DECL_FUNC(date,-1,_SC(".nn")),
+	_DECL_FUNC(remove,2,_SC(".s")),
+	_DECL_FUNC(rename,3,_SC(".ss")),
+	{0,0,0,0}
+};
+
+
+SQInteger sqstd_register_systemlib(HSQUIRRELVM v)
+{
+	SQInteger i=0;
+	while(systemlib_funcs[i].name!=0)
+	{
+		sq_pushstring(v,systemlib_funcs[i].name,-1);
+		sq_newclosure(v,systemlib_funcs[i].f,0);
+		sq_setparamscheck(v,systemlib_funcs[i].nparamscheck,systemlib_funcs[i].typemask);
+		sq_setnativeclosurename(v,-1,systemlib_funcs[i].name);
+		sq_createslot(v,-3);
+		i++;
+	}
+	return 1;
+}