From d8a46fb55ae9ce363612f91a453413533bbfa307 Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Wed, 20 Jun 2018 12:48:48 -0400
Subject: add ds9 data send parser

---
 ds9/library/source.tcl         |  2 ++
 ds9/library/util.tcl           | 72 ++++++++++++++----------------------------
 ds9/parsers/datasendlex.fcl    | 18 +++++++++++
 ds9/parsers/datasendparser.tac | 46 +++++++++++++++++++++++++++
 4 files changed, 89 insertions(+), 49 deletions(-)
 create mode 100644 ds9/parsers/datasendlex.fcl
 create mode 100644 ds9/parsers/datasendparser.tac

diff --git a/ds9/library/source.tcl b/ds9/library/source.tcl
index 88d3d76..c2a344a 100644
--- a/ds9/library/source.tcl
+++ b/ds9/library/source.tcl
@@ -240,6 +240,8 @@ source $ds9(root)/library/cubesendparser.tcl
 source $ds9(root)/library/cubesendlex.tcl
 source $ds9(root)/library/cursorparser.tcl
 source $ds9(root)/library/cursorlex.tcl
+source $ds9(root)/library/datasendparser.tcl
+source $ds9(root)/library/datasendlex.tcl
 source $ds9(root)/library/dssesoparser.tcl
 source $ds9(root)/library/dssesolex.tcl
 source $ds9(root)/library/dssesosendparser.tcl
diff --git a/ds9/library/util.tcl b/ds9/library/util.tcl
index 5aa9a5f..1bf0be1 100644
--- a/ds9/library/util.tcl
+++ b/ds9/library/util.tcl
@@ -1495,60 +1495,34 @@ proc CursorCmd {x y} {
 }
 
 proc ProcessSendDataCmd {proc id param sock fn} {
-    global cube
-    global blink
+    global parse
+    set parse(proc) $proc
+    set parse(id) $id
+    set parse(sock) $sock
+    set parse(fn) $fn
+
+    datasend::YY_FLUSH_BUFFER
+    datasend::yy_scan_string $param
+    datasend::yyparse
+}
+
+proc DataSendCmd {sys sky xx yy ww hh strip} {
     global current
 
-    if {$current(frame) != {}} {
-	set sys [lindex $param 0]
-	set sky [lindex $param 1]
-	set x [lindex $param 2]
-	set y [lindex $param 3]
-	set w [lindex $param 4]
-	set h [lindex $param 5]
-	set strip [lindex $param 6]
-	switch -- $sys {
-	    image -
-	    physical -
-	    detector -
-	    amplifier {
-		set strip $h
-		set h $w
-		set w $y
-		set y $x
-		set x $sky
-		set sky fk5
-	    }
+    if {$current(frame) == {}} {
+	return
+    }
 
-	    fk4 -
-	    b1950 -
-	    fk5 -
-	    j2000 -
-	    icrs -
-	    galactic -
-	    ecliptic {
-		set strip $h
-		set h $w
-		set w $y
-		set y $x
-		set x $sky
-		set sky $sys
-		set sys wcs
-	    }
-	}
-	set strip [FromYesNo $strip]
-
-	$current(frame) get data $sys $sky $x $y $w $h rr
-	set ss {}
-	foreach ii [array names rr] {
-	    if {$strip} {
-		append ss "$rr($ii)\n"
-	    } else {
-		append ss "$ii = $rr($ii)\n"
-	    }
+    $current(frame) get data $sys $sky $xx $yy $ww $hh rr
+    set ss {}
+    foreach ii [array names rr] {
+	if {$strip} {
+	    append ss "$rr($ii)\n"
+	} else {
+	    append ss "$ii = $rr($ii)\n"
 	}
-	ProcessSend $proc $id $sock $fn {.dat} $ss
     }
+    ProcessSendCmdResult {.dat} $ss
 }
 
 proc ProcessIconifyCmd {varname iname} {
diff --git a/ds9/parsers/datasendlex.fcl b/ds9/parsers/datasendlex.fcl
new file mode 100644
index 0000000..0c632d7
--- /dev/null
+++ b/ds9/parsers/datasendlex.fcl
@@ -0,0 +1,18 @@
+#tab datasendparser.tab.tcl
+
+%{
+%}
+
+#include defs.fin
+
+%%
+
+#include coordsys.fin
+#include wcssys.fin
+#include skyframe.fin
+#include yesno.fin
+#include numeric.fin
+#include sexstr.fin
+#include ws.fin
+
+%%
diff --git a/ds9/parsers/datasendparser.tac b/ds9/parsers/datasendparser.tac
new file mode 100644
index 0000000..1ffc9fa
--- /dev/null
+++ b/ds9/parsers/datasendparser.tac
@@ -0,0 +1,46 @@
+%{
+%}
+
+#include coordsys.tin
+#include wcssys.tin
+#include skyframe.tin
+#include yesno.tin
+#include numeric.tin
+#include sexstr.tin
+
+%start datasend
+
+%%
+
+#include coordsys.trl
+#include wcssys.trl
+#include skyframe.trl
+#include yesno.trl
+#include numeric.trl
+
+datasend : coordsys numeric numeric INT_ INT_ yesno
+   {DataSendCmd $1 fk5 $2 $3 $4 $5 $6}
+ | wcssys numeric numeric numeric numeric yesno
+   {DataSendCmd $1 fk5 $2 $3 $4 $5 $6}
+ | skyframe numeric numeric numeric numeric yesno
+   {DataSendCmd wcs $1 $2 $3 $4 $5 $6}
+ | wcssys skyframe numeric numeric numeric numeric yesno
+   {DataSendCmd $1 $2 $3 $4 $5 $6 $7}
+
+ | wcssys SEXSTR_ SEXSTR_ numeric numeric yesno
+   {DataSendCmd $1 fk5 $2 $3 $4 $5 $6}
+ | skyframe SEXSTR_ SEXSTR_ numeric numeric yesno
+   {DataSendCmd wcs $1 $2 $3 $4 $5 $6}
+ | wcssys skyframe SEXSTR_ SEXSTR_ numeric numeric yesno
+   {DataSendCmd $1 $2 $3 $4 $5 $6 $7}
+ ;
+
+%%
+
+proc datasend::yyerror {msg} {
+     variable yycnt
+     variable yy_current_buffer
+     variable index_
+
+     ParserError $msg $yycnt $yy_current_buffer $index_
+}
-- 
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