From 583f23d32829ac3d0c605747f3c08b686ed49c66 Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Thu, 10 May 2018 12:38:20 -0400
Subject: add ds9 rgbcube parser

---
 ds9/library/rgbcube.tcl       | 33 +++++++++++++++++++++++++++++++++
 ds9/library/source.tcl        |  2 ++
 ds9/parsers/rgbcubelex.fcl    | 14 ++++++++++++++
 ds9/parsers/rgbcubeparser.tac | 32 ++++++++++++++++++++++++++++++++
 4 files changed, 81 insertions(+)
 create mode 100644 ds9/parsers/rgbcubelex.fcl
 create mode 100644 ds9/parsers/rgbcubeparser.tac

diff --git a/ds9/library/rgbcube.tcl b/ds9/library/rgbcube.tcl
index dfd2e2f..76424ce 100644
--- a/ds9/library/rgbcube.tcl
+++ b/ds9/library/rgbcube.tcl
@@ -111,6 +111,18 @@ proc ProcessRGBCubeCmd {varname iname sock fn} {
     upvar $varname var
     upvar $iname i
 
+    global debug
+    if {$debug(tcl,parser)} {
+	global rgbcube
+	set rgbcube(load,sock) $sock
+	set rgbcube(load,fn) $fn
+
+	rgbcube::YY_FLUSH_BUFFER
+	rgbcube::yy_scan_string [lrange $var $i end]
+	rgbcube::yyparse
+	incr i [expr $rgbcube::yycnt-1]
+    } else {
+
     switch -- [string tolower [lindex $var $i]] {
 	new {
 	    incr i
@@ -143,6 +155,27 @@ proc ProcessRGBCubeCmd {varname iname sock fn} {
     }
     FinishLoad
 }
+}
+
+proc RGBCubeCmdLoad {param} {
+    global rgbcube
+
+    if {$rgbcube(load,sock) != {}} {
+	# xpa
+	if {![LoadRGBCubeSocket $rgbcube(load,sock) $param]} {
+	    InitError xpa
+	    LoadRGBCubeFile $param
+	}
+    } else {
+	# comm
+	if {$rgbcube(load,fn) != {}} {
+	    LoadRGBCubeAlloc $rgbcube(load,fn) $param
+	} else {
+	    LoadRGBCubeFile $param
+	}
+    }
+    FinishLoad
+}
 
 proc ProcessSendRGBCubeCmd {proc id param sock fn} {
     global current
diff --git a/ds9/library/source.tcl b/ds9/library/source.tcl
index 237f0f2..090df28 100644
--- a/ds9/library/source.tcl
+++ b/ds9/library/source.tcl
@@ -288,6 +288,8 @@ source $ds9(root)/library/regionparser.tcl
 source $ds9(root)/library/regionlex.tcl
 source $ds9(root)/library/rgbparser.tcl
 source $ds9(root)/library/rgblex.tcl
+source $ds9(root)/library/rgbcubeparser.tcl
+source $ds9(root)/library/rgbcubelex.tcl
 source $ds9(root)/library/sampparser.tcl
 source $ds9(root)/library/samplex.tcl
 source $ds9(root)/library/saveparser.tcl
diff --git a/ds9/parsers/rgbcubelex.fcl b/ds9/parsers/rgbcubelex.fcl
new file mode 100644
index 0000000..bf43fb5
--- /dev/null
+++ b/ds9/parsers/rgbcubelex.fcl
@@ -0,0 +1,14 @@
+#tab rgbcubeparser.tab.tcl
+
+%{
+%}
+
+#include defs.fin
+
+%%
+
+new	    {return $NEW_}
+
+#include string.fin
+
+%%
diff --git a/ds9/parsers/rgbcubeparser.tac b/ds9/parsers/rgbcubeparser.tac
new file mode 100644
index 0000000..61142c5
--- /dev/null
+++ b/ds9/parsers/rgbcubeparser.tac
@@ -0,0 +1,32 @@
+%{
+%}
+
+#include string.tin
+
+%start command
+
+%token NEW_
+
+%%
+
+command : rgbcube 
+ | rgbcube {yyclearin; YYACCEPT} STRING_
+ ;
+
+rgbcube : opts {RGBCubeCmdLoad {}}
+ | opts STRING_ {RGBCubeCmdLoad $2}
+ ;
+
+opts :
+ | NEW_ {CreateRGBFrame}
+ ;
+
+%%
+
+proc rgbcube::yyerror {msg} {
+     variable yycnt
+     variable yy_current_buffer
+     variable index_
+
+     ParserError $msg $yycnt $yy_current_buffer $index_
+}
-- 
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