Allow adding source blocks to the top the of header and source files

1 files changed, 9 insertions, 1 deletions

diff --git a/src/output.cpp b/src/output.cpp
index 72e9a6e..e1ca496 100644
--- a/src/output.cpp
+++ b/src/output.cpp
@@ -88,6 +88,11 @@ void output_t::emit_token_value() {
 }
 
 void output_t::emit_header() {
+	std::fprintf(header_file, "#pragma once\n\n");
+
+	if (!generator->get_header_block().empty())
+		std::fprintf(header_file, "%s\n", generator->get_header_block().c_str());
+
 	emit_tokens();
 	emit_token_value();
 
@@ -261,12 +266,15 @@ void output_t::emit_header_include() {
 	const char *slash = std::strrchr(header_filename.c_str(), sep);
 	const char *basename = slash ? slash+1 : header_filename.c_str();
 
-	std::fprintf(source_file, "#include \"%s\"\n\n\n", basename);
+	std::fprintf(source_file, "#include \"%s\"\n\n", basename);
 }
 
 void output_t::emit_source() {
 	emit_header_include();
 
+	if (!generator->get_source_block().empty())
+		std::fprintf(source_file, "%s\n\n", generator->get_source_block().c_str());
+
 	std::fprintf(source_file, "typedef union %ssymbol_value {\n", prefix());
 	std::fprintf(source_file, "\t%stoken_value_t token;\n", prefix());