Support comments between (* and *)

Rakefile

@@ -14,7 +14,7 @@ directory 'build/boot'
 directory 'build/valid'
 
 def compile(input, output)
-  sh ENV.fetch('CC', 'gcc'), '-nostdlib', '-o', output, input
+  sh ENV.fetch('CC', 'gcc'), '-nostdlib', '-fpie', '-g', '-o', output, input
 end
 
 def run(exe)
@@ -39,43 +39,16 @@ end
 
 desc 'Convert previous stage language into the current stage language'
 task :convert do
-  File.open('boot/stage8.elna', 'w') do |current_stage|
-    File.readlines('boot/stage7.elna').each do |line|
-      if line == ".section .bss\n"
-        current_stage << <<~SECTION
-          const
-          	symbol_builtin_name_int := "Int";
-          	symbol_builtin_name_word := "Word";
-          	symbol_builtin_name_pointer := "Pointer";
-          	symbol_builtin_name_char := "Char";
-          	symbol_builtin_name_bool := "Bool";
+  File.open('boot/stage9.elna', 'w') do |current_stage|
+    File.readlines('boot/stage8.elna').each do |line|
+      comment_match = /^(\s*)#(.*)/.match line
 
-          	# Every type info starts with a word describing what type it is.
-		#
-		# PRIMITIVE_TYPE = 1
-		#
-          	# Primitive types have only type size.
-          	symbol_builtin_type_int := S(1, 4);
-          	symbol_builtin_type_word := S(1, 4);
-          	symbol_builtin_type_pointer := S(1, 4);
-          	symbol_builtin_type_char := S(1, 1);
-          	symbol_builtin_type_bool := S(1, 1);
-
-		# Info objects start with a word describing its type.
-		#
-		# INFO_TYPE = 1
-		#
-		# Type info has the type it belongs to.
-          	symbol_type_info_int := S(1, @symbol_builtin_type_int);
-          	symbol_type_info_word := S(1, @symbol_builtin_type_word);
-          	symbol_type_info_pointer := S(1, @symbol_builtin_type_pointer);
-          	symbol_type_info_char := S(1, @symbol_builtin_type_char);
-          	symbol_type_info_bool := S(1, @symbol_builtin_type_bool);
-        SECTION
-      elsif line == ".section .data\n"
-        current_stage << "var\n"
-      elsif !(line == ".section .text\n" || line == ".globl _start\n")
+      if comment_match.nil?
         current_stage << line
+      elsif comment_match[2].empty?
+        current_stage << "\n"
+      else
+        current_stage << "#{comment_match[1]}(* #{comment_match[2].strip} *)\n"
       end
     end
   end