4 files changed, 43 insertions, 12 deletions

diff --git a/src/dxfdim.cc b/src/dxfdim.cc
index 66842d2..a241b87 100644
--- a/src/dxfdim.cc
+++ b/src/dxfdim.cc
@@ -160,9 +160,16 @@ Value builtin_dxf_cross(const Context *ctx, const EvalContext *evalctx)
 	}
 
 	std::stringstream keystream;
+	fs::path filepath(filename);
+	uintmax_t filesize = -1;
+	time_t lastwritetime = -1;
+	if (fs::exists(filepath) && fs::is_regular_file(filepath)) {
+		filesize = fs::file_size(filepath);
+		lastwritetime = fs::last_write_time(filepath);
+	}
 	keystream << filename << "|" << layername << "|" << xorigin << "|" << yorigin
-						<< "|" << scale << "|" << fs::last_write_time(filename)
-						<< "|" << fs::file_size(filename);
+						<< "|" << scale << "|" << lastwritetime
+						<< "|" << filesize;
 	std::string key = keystream.str();
 
 	if (dxf_cross_cache.find(key) != dxf_cross_cache.end())
diff --git a/src/expr.cc b/src/expr.cc
index 1381c24..2e069f0 100644
--- a/src/expr.cc
+++ b/src/expr.cc
@@ -172,23 +172,27 @@ std::string Expression::toString() const
 
 	if (this->type == "*" || this->type == "/" || this->type == "%" || this->type == "+" ||
 			this->type == "-" || this->type == "<" || this->type == "<=" || this->type == "==" || 
-			this->type == "!=" || this->type == ">=" || this->type == ">") {
+			this->type == "!=" || this->type == ">=" || this->type == ">" ||
+			this->type == "&&" || this->type == "||") {
 		stream << "(" << *this->children[0] << " " << this->type << " " << *this->children[1] << ")";
 	}
 	else if (this->type == "?:") {
-		stream << "(" << *this->children[0] << " ? " << this->type << " : " << *this->children[1] << ")";
+		stream << "(" << *this->children[0] << " ? " << *this->children[1] << " : " << *this->children[2] << ")";
 	}
 	else if (this->type == "[]") {
-		stream << "(" << *this->children[0] << "[" << *this->children[1] << "])";
+		stream << *this->children[0] << "[" << *this->children[1] << "]";
 	}
 	else if (this->type == "I") {
-		stream << "(-" << *this->children[0] << ")";
+		stream << "-" << *this->children[0];
+	}
+	else if (this->type == "!") {
+		stream << "!" << *this->children[0];
 	}
 	else if (this->type == "C") {
 		stream << this->const_value;
 	}
 	else if (this->type == "R") {
-		stream << "[" << *this->children[0] << " : " << *this->children[1] << " : " << this->children[2] << "]";
+		stream << "[" << *this->children[0] << " : " << *this->children[1] << " : " << *this->children[2] << "]";
 	}
 	else if (this->type == "V") {
 		stream << "[";
@@ -202,7 +206,7 @@ std::string Expression::toString() const
 		stream << this->var_name;
 	}
 	else if (this->type == "N") {
-		stream << "(" << *this->children[0] << "." << this->var_name << ")";
+		stream << *this->children[0] << "." << this->var_name;
 	}
 	else if (this->type == "F") {
 		stream << this->call_funcname << "(";
diff --git a/src/module.cc b/src/module.cc
index b9b23d8..046d0c4 100644
--- a/src/module.cc
+++ b/src/module.cc
@@ -102,16 +102,35 @@ std::string ModuleInstantiation::dump(const std::string &indent) const
 	if (scope.numElements() == 0) {
 		dump << ");\n";
 	} else if (scope.numElements() == 1) {
-		dump << ")\n";
-		dump << scope.dump(indent + "\t");
+		dump << ") ";
+		dump << scope.dump("");
 	} else {
 		dump << ") {\n";
-		scope.dump(indent + "\t");
+		dump << scope.dump(indent + "\t");
 		dump << indent << "}\n";
 	}
 	return dump.str();
 }
 
+std::string IfElseModuleInstantiation::dump(const std::string &indent) const
+{
+	std::stringstream dump;
+	dump << ModuleInstantiation::dump(indent);
+	dump << indent;
+	if (else_scope.numElements() > 0) {
+		dump << indent << "else ";
+		if (else_scope.numElements() == 1) {
+			dump << else_scope.dump("");
+		}
+		else {
+			dump << "{\n";
+			dump << else_scope.dump(indent + "\t");
+			dump << indent << "}\n";
+		}
+	}
+	return dump.str();
+}
+
 AbstractNode *ModuleInstantiation::evaluate(const Context *ctx) const
 {
 	EvalContext c(ctx, this->arguments, &this->scope);
diff --git a/src/module.h b/src/module.h
index ad2a46c..682e65b 100644
--- a/src/module.h
+++ b/src/module.h
@@ -19,7 +19,7 @@ public:
 		: tag_root(false), tag_highlight(false), tag_background(false), recursioncount(0), modname(name) { }
 	virtual ~ModuleInstantiation();
 
-	std::string dump(const std::string &indent) const;
+	virtual std::string dump(const std::string &indent) const;
 	class AbstractNode *evaluate(const class Context *ctx) const;
 	std::vector<AbstractNode*> instantiateChildren(const Context *evalctx) const;
 
@@ -51,6 +51,7 @@ public:
 	IfElseModuleInstantiation() : ModuleInstantiation("if") { }
 	virtual ~IfElseModuleInstantiation();
 	std::vector<AbstractNode*> instantiateElseChildren(const Context *evalctx) const;
+	virtual std::string dump(const std::string &indent) const;
 
 	LocalScope else_scope;
 };