diff --git a/src/3rdparty/squirrel/squirrel/sqcompiler.cpp b/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
index 496e7b6192..2d7c7d5703 100644
--- a/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
+++ b/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
@@ -88,7 +88,7 @@ public:
 				//do nothing
 			}
 			else {
-				const SQChar *etypename;
+				std::string_view etypename;
 				if(tok > 255) {
 					switch(tok)
 					{
@@ -105,7 +105,7 @@ public:
 						etypename = "FLOAT";
 						break;
 					default:
-						etypename = _lex.Tok2Str(tok);
+						etypename = _lex.Tok2Str(tok).value_or("<unknown>");
 					}
 					throw CompileException(fmt::format("expected '{}'", etypename));
 				}
@@ -116,10 +116,10 @@ public:
 		switch(tok)
 		{
 		case TK_IDENTIFIER:
-			ret = _fs->CreateString(_lex._svalue);
+			ret = _fs->CreateString(_lex.View());
 			break;
 		case TK_STRING_LITERAL:
-			ret = _fs->CreateString(std::string_view(_lex._svalue,_lex._longstr.size()-1));
+			ret = _fs->CreateString(_lex.View());
 			break;
 		case TK_INTEGER:
 			ret = SQObjectPtr(_lex._nvalue);
@@ -594,7 +594,7 @@ public:
 		switch(_token)
 		{
 		case TK_STRING_LITERAL: {
-				_fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(_fs->CreateString(std::string_view(_lex._svalue,_lex._longstr.size()-1))));
+				_fs->AddInstruction(_OP_LOAD, _fs->PushTarget(), _fs->GetConstant(_fs->CreateString(_lex.View())));
 				Lex();
 			}
 			break;
@@ -614,7 +614,7 @@ public:
 			SQObject id;
 			SQObject constant;
 				switch(_token) {
-					case TK_IDENTIFIER: id = _fs->CreateString(_lex._svalue); break;
+					case TK_IDENTIFIER: id = _fs->CreateString(_lex.View()); break;
 					case TK_THIS: id = _fs->CreateString("this"); break;
 					case TK_CONSTRUCTOR: id = _fs->CreateString("constructor"); break;
 				}
@@ -1099,7 +1099,7 @@ public:
 				val._unVal.fFloat = _lex._fvalue;
 				break;
 			case TK_STRING_LITERAL:
-				val = _fs->CreateString(std::string_view(_lex._svalue,_lex._longstr.size()-1));
+				val = _fs->CreateString(_lex.View());
 				break;
 			case '-':
 				Lex();
diff --git a/src/3rdparty/squirrel/squirrel/sqlexer.cpp b/src/3rdparty/squirrel/squirrel/sqlexer.cpp
index 6523540880..56296969a3 100644
--- a/src/3rdparty/squirrel/squirrel/sqlexer.cpp
+++ b/src/3rdparty/squirrel/squirrel/sqlexer.cpp
@@ -85,7 +85,6 @@ SQLexer::SQLexer(SQSharedState *ss, SQLEXREADFUNC rg, SQUserPointer up)
 	_prevtoken = -1;
 	_curtoken = -1;
 
-	_svalue = nullptr;
 	_nvalue = 0;
 	_fvalue = 0;
 
@@ -103,7 +102,7 @@ void SQLexer::Next()
 	_currdata = SQUIRREL_EOB;
 }
 
-const SQChar *SQLexer::Tok2Str(SQInteger tok)
+std::optional<std::string_view> SQLexer::Tok2Str(SQInteger tok)
 {
 	SQObjectPtr itr, key, val;
 	SQInteger nitr;
@@ -112,7 +111,7 @@ const SQChar *SQLexer::Tok2Str(SQInteger tok)
 		if(((SQInteger)_integer(val)) == tok)
 			return _stringval(key);
 	}
-	return nullptr;
+	return std::nullopt;
 }
 
 void SQLexer::LexBlockComment()
@@ -270,7 +269,7 @@ SQInteger SQLexer::Lex()
 	return 0;
 }
 
-SQInteger SQLexer::GetIDType(SQChar *s)
+SQInteger SQLexer::GetIDType(std::string_view s)
 {
 	SQObjectPtr t;
 	if(_keywords->Get(SQString::Create(_sharedstate, s), t)) {
@@ -349,50 +348,17 @@ SQInteger SQLexer::ReadString(char32_t ndelim,bool verbatim)
 			break;
 		}
 	}
-	TERMINATE_BUFFER();
-	SQInteger len = _longstr.size()-1;
 	if(ndelim == '\'') {
-		if(len == 0) throw CompileException("empty constant");
-		if(len > 1) throw CompileException("constant too long");
+		if(_longstr.empty()) throw CompileException("empty constant");
+		if(_longstr.size() > 1) throw CompileException("constant too long");
 		_nvalue = _longstr[0];
 		return TK_INTEGER;
 	}
-	_svalue = &_longstr[0];
 	return TK_STRING_LITERAL;
 }
 
-void LexHexadecimal(const SQChar *s,SQUnsignedInteger *res)
-{
-	*res = 0;
-	while(*s != 0)
-	{
-		if(isdigit(*s)) *res = (*res)*16+((*s++)-'0');
-		else if(isxdigit(*s)) *res = (*res)*16+(toupper(*s++)-'A'+10);
-		else { assert(0); }
-	}
-}
-
-void LexInteger(const SQChar *s,SQUnsignedInteger *res)
-{
-	*res = 0;
-	while(*s != 0)
-	{
-		*res = (*res)*10+((*s++)-'0');
-	}
-}
-
 SQInteger scisodigit(SQChar c) { return c >= '0' && c <= '7'; }
 
-void LexOctal(const SQChar *s,SQUnsignedInteger *res)
-{
-	*res = 0;
-	while(*s != 0)
-	{
-		if(scisodigit(*s)) *res = (*res)*8+((*s++)-'0');
-		else { assert(0); }
-	}
-}
-
 SQInteger isexponent(SQInteger c) { return c == 'e' || c=='E'; }
 
 
@@ -447,20 +413,21 @@ SQInteger SQLexer::ReadNumber()
 			NEXT();
 		}
 	}
-	TERMINATE_BUFFER();
 	switch(type) {
 	case TSCIENTIFIC:
-	case TFLOAT:
-		_fvalue = (SQFloat)strtod(&_longstr[0],&sTemp);
+	case TFLOAT: {
+		std::string str{View()};
+		_fvalue = (SQFloat)strtod(str.c_str(),&sTemp);
 		return TK_FLOAT;
+	}
 	case TINT:
-		LexInteger(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+		_nvalue = ParseInteger<SQUnsignedInteger>(View(), 10).value_or(0);
 		return TK_INTEGER;
 	case THEX:
-		LexHexadecimal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+		_nvalue = ParseInteger<SQUnsignedInteger>(View(), 16).value_or(0);
 		return TK_INTEGER;
 	case TOCTAL:
-		LexOctal(&_longstr[0],(SQUnsignedInteger *)&_nvalue);
+		_nvalue = ParseInteger<SQUnsignedInteger>(View(), 8).value_or(0);
 		return TK_INTEGER;
 	}
 	return 0;
@@ -474,10 +441,6 @@ SQInteger SQLexer::ReadID()
 		APPEND_CHAR(CUR_CHAR);
 		NEXT();
 	} while(isalnum(CUR_CHAR) || CUR_CHAR == '_');
-	TERMINATE_BUFFER();
-	res = GetIDType(&_longstr[0]);
-	if(res == TK_IDENTIFIER || res == TK_CONSTRUCTOR) {
-		_svalue = &_longstr[0];
-	}
+	res = GetIDType(View());
 	return res;
 }
diff --git a/src/3rdparty/squirrel/squirrel/sqlexer.h b/src/3rdparty/squirrel/squirrel/sqlexer.h
index 818c7a8d81..a2342646f8 100644
--- a/src/3rdparty/squirrel/squirrel/sqlexer.h
+++ b/src/3rdparty/squirrel/squirrel/sqlexer.h
@@ -7,9 +7,9 @@ struct SQLexer
 	~SQLexer();
 	SQLexer(SQSharedState *ss,SQLEXREADFUNC rg,SQUserPointer up);
 	SQInteger Lex();
-	const SQChar *Tok2Str(SQInteger tok);
+	std::optional<std::string_view> Tok2Str(SQInteger tok);
 private:
-	SQInteger GetIDType(SQChar *s);
+	SQInteger GetIDType(std::string_view s);
 	SQInteger ReadString(char32_t ndelim,bool verbatim);
 	SQInteger ReadNumber();
 	void LexBlockComment();
@@ -19,14 +19,12 @@ private:
 	SQTable *_keywords;
 	void INIT_TEMP_STRING() { _longstr.resize(0); }
 	void APPEND_CHAR(char32_t c);
-	void TERMINATE_BUFFER() { _longstr.push_back('\0'); }
 
 public:
 	SQInteger _prevtoken;
 	SQInteger _currentline;
 	SQInteger _lasttokenline;
 	SQInteger _currentcolumn;
-	const SQChar *_svalue;
 	SQInteger _nvalue;
 	SQFloat _fvalue;
 	SQLEXREADFUNC _readf;
@@ -34,6 +32,8 @@ public:
 	char32_t _currdata;
 	SQSharedState *_sharedstate;
 	sqvector<SQChar> _longstr;
+
+	std::string_view View() const { return std::string_view(_longstr._vals, _longstr.size()); }
 };
 
 #endif