From da712e58d02b1e0cb0edf2da3a7b9a01190093b4 Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Fri, 11 May 2018 15:28:43 -0400
Subject: add ds9 smosaicwcs parser

---
 ds9/parsers/smosaicwcslex.fcl    | 16 ++++++++++++++++
 ds9/parsers/smosaicwcsparser.tac | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 ds9/parsers/smosaicwcslex.fcl
 create mode 100644 ds9/parsers/smosaicwcsparser.tac

diff --git a/ds9/parsers/smosaicwcslex.fcl b/ds9/parsers/smosaicwcslex.fcl
new file mode 100644
index 0000000..f5da16f
--- /dev/null
+++ b/ds9/parsers/smosaicwcslex.fcl
@@ -0,0 +1,16 @@
+#tab smosaicwcsparser.tab.tcl
+
+%{
+%}
+
+#include defs.fin
+
+%%
+
+mask	    {return $MASK_}
+new	    {return $NEW_}
+
+#include coords.fin
+#include string.fin
+
+%%
diff --git a/ds9/parsers/smosaicwcsparser.tac b/ds9/parsers/smosaicwcsparser.tac
new file mode 100644
index 0000000..e75864c
--- /dev/null
+++ b/ds9/parsers/smosaicwcsparser.tac
@@ -0,0 +1,40 @@
+%{
+%}
+
+#include coords.tin
+#include string.tin
+
+%start command
+
+%token MASK_
+%token NEW_
+
+%%
+
+#include coords.trl
+
+command : smosaicwcs 
+ | smosaicwcs {yyclearin; YYACCEPT} STRING_
+ ;
+
+smosaicwcs : opts sys STRING_ STRING_ {LoadSMosaicWCSFile $3 $4 $2 $1}
+ ;
+
+sys : {set _ wcs}
+ | wcssys {set _ $1}
+ ;
+
+opts :
+ | NEW_ {CreateFrame; set _ {}}
+ | MASK_ {set _ mask}
+ ;
+
+%%
+
+proc smosaicwcs::yyerror {msg} {
+     variable yycnt
+     variable yy_current_buffer
+     variable index_
+
+     ParserError $msg $yycnt $yy_current_buffer $index_
+}
-- 
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