Add initial files

exercises/02/vslc/src/nodetypes.c

@@ -0,0 +1,34 @@
+#define STRING(x) #x
+char *node_string[30] = {
+    STRING(PROGRAM),
+    STRING(GLOBAL_LIST),
+    STRING(GLOBAL),
+    STRING(STATEMENT_LIST),
+    STRING(PRINT_LIST),
+    STRING(EXPRESSION_LIST),
+    STRING(VARIABLE_LIST),
+    STRING(ARGUMENT_LIST),
+    STRING(PARAMETER_LIST),
+    STRING(DECLARATION_LIST),
+    STRING(FUNCTION),
+    STRING(STATEMENT),
+    STRING(BLOCK),
+    STRING(ASSIGNMENT_STATEMENT),
+    STRING(ADD_STATEMENT),
+    STRING(SUBTRACT_STATEMENT),
+    STRING(MULTIPLY_STATEMENT),
+    STRING(DIVIDE_STATEMENT),
+    STRING(RETURN_STATEMENT),
+    STRING(PRINT_STATEMENT),
+    STRING(NULL_STATEMENT),
+    STRING(IF_STATEMENT),
+    STRING(WHILE_STATEMENT),
+    STRING(EXPRESSION),
+    STRING(RELATION),
+    STRING(DECLARATION),
+    STRING(PRINT_ITEM),
+    STRING(IDENTIFIER_DATA),
+    STRING(NUMBER_DATA),
+    STRING(STRING_DATA)
+};
+#undef STRING