Initial commit of pragma newsource pragma newsource enables a source code variant as follows: 1. no line numbers 2. no implied comments at the end of lines 3. all comments must be introduced by a comment character 4. spaces are allowed in operands (4) is not quite complete. This commit handles "operandless" instructions (anything where the parser calls skip_operand()) and expression parsing.

--- a/lwlib/lw_expr.h	Sun Oct 11 09:31:06 2015 -0600
+++ b/lwlib/lw_expr.h	Tue Oct 13 23:38:02 2015 -0600
@@ -90,6 +90,7 @@
 void lw_expr_set_term_parser(lw_expr_fn3_t *fn);
 
 lw_expr_t lw_expr_parse(char **p, void *priv);
+lw_expr_t lw_expr_parse_compact(char **p, void *priv);
 int lw_expr_istype(lw_expr_t e, int t);
 int lw_expr_intval(lw_expr_t e);
 int lw_expr_specint(lw_expr_t e);