From f5df23b41f6cfa57ee677e4801353efdc0982dea Mon Sep 17 00:00:00 2001
From: Dirk Zimoch <dirk.zimoch@psi.ch>
Date: Wed, 9 Feb 2022 10:57:48 +0100
Subject: [PATCH] allow muitiple preprocessor lines at beginning of file

---
 src/sequencer/snc.y | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/sequencer/snc.y b/src/sequencer/snc.y
index 8656e594d..52619d1cb 100644
--- a/src/sequencer/snc.y
+++ b/src/sequencer/snc.y
@@ -109,8 +109,8 @@ extern	int line_num; /* input file line no. */
 state_program 	/* define a state program */
 :	program_name definitions state_set_list			{ program($3); }
 |	program_name definitions state_set_list global_c	{ program($3); }
-|	pp_code program_name definitions state_set_list		{ program($4); }
-|	pp_code program_name definitions state_set_list global_c{ program($4); }
+|	pp_codes program_name definitions state_set_list		{ program($4); }
+|	pp_codes program_name definitions state_set_list global_c{ program($4); }
 |	error { snc_err("state program"); }
 ;
 
@@ -374,7 +374,14 @@ for_stmt
 
 pp_code		/* pre-processor code (e.g. # 1 "test.st") */
 :	PP_SYMBOL NUMBER STRING CR		{ pp_code($2, $3, ""); }
+|       PP_SYMBOL NUMBER CR                     { pp_code($2, 0, ""); }
 |	PP_SYMBOL NUMBER STRING NUMBER CR	{ pp_code($2, $3, $4); }
+|       PP_SYMBOL STRING CR     { /* Silently consume #pragma lines */ } 
+;
+
+pp_codes        /* one or more pp_code */
+:       pp_code
+|       pp_codes pp_code
 ;
 
 global_c