=== modified file 'bin/aat.awk'
--- bin/aat.awk	2013-10-30 21:03:06 +0000
+++ bin/aat.awk	2013-10-29 09:19:34 +0000
@@ -52,16 +52,15 @@
 	}
 
 	# Assign a variable with query expression
-	# else if(name == "let"){
-	# 	if (!match(args, / *= */)) {
-	# 		print "ERROR: invalid let statement: " args >"/dev/stderr"
-	# 		exit 1
-	# 	}
-	# 	tok_type=T_AWK
-	# 	token("V[\"" substr(args, 1, RSTART-1) "\"] = " \
-	# 		  substr(args, RSTART+RLENGTH)) "\n"
-	# 		  # aat_process(substr(args, RSTART+RLENGTH)) "\n")
-	# }
+	else if(name == "let"){
+		if (!match(args, / *= */)) {
+			print "ERROR: invalid let statement: " args >"/dev/stderr"
+			exit 1
+		}
+		tok_type=T_AWK
+		token("V[\"" substr(args, 1, RSTART-1) "\"] = " \
+			  aat_process(substr(args, RSTART+RLENGTH)) "\n")
+	}
 
 	# if with a query expression
 	else if(name == "if"){

=== modified file 'bin/aat_macros.sed'
--- bin/aat_macros.sed	2013-10-30 21:03:06 +0000
+++ bin/aat_macros.sed	2013-10-09 16:48:47 +0000
@@ -13,4 +13,4 @@
 s/^[[:space:]]*@elif[[:space:]]\+\(.\+\)$/} else if(get("\1")) {\n/
 s/^[[:space:]]*@else[[:space:]]*$/} else {/
 s/^[[:space:]]*@endif[[:space:]]*$/}/
-#s/^[[:space:]]*@let[[:space:]]\+\([a-zA-Z_][a-zA-Z0-9_]*\)[[:space:]]*=[[:space:]]*\(.*\)$/V["\1"] = \2\n/
+s/^[[:space:]]*@let[[:space:]]\+\([a-zA-Z_][a-zA-Z0-9_]*\)[[:space:]]*=[[:space:]]*\(.*\)$/V["\1"] = \2\n/

=== modified file 'bin/query.awk'
--- bin/query.awk	2013-10-30 21:03:06 +0000
+++ bin/query.awk	2013-10-29 09:19:34 +0000
@@ -13,28 +13,22 @@
 # called for expanding {< >}
 # global variable expand_remaining used as input
 function expand_query(    expanded) {
-	if(DEBUG) printf "E: →%s←\n", expand_remaining >"/dev/stderr"
 	expanded = ""
 	while(match(expand_remaining, "['<>]")) {
-		if(RSTART > 1) {
+		if(RSTART > 1)
 			expanded = expanded "\"" substr(expand_remaining, 1, RSTART-1) "\""
-			if(DEBUG) printf "e: →%s←\n", expanded >"/dev/stderr"
-		}
 		char = substr(expand_remaining, RSTART, 1)
 		expand_remaining = substr(expand_remaining, RSTART+1)
 		if(char == ">")
 			return "get("expanded")"
 		else if(char == "<") {
 			expanded = expanded expand_query()
-			if(DEBUG) printf "e: →%s←\n", expanded >"/dev/stderr"
 		} else if(char == "'") {
 			if(match(expand_remaining, "'")) {
-				expanded = expanded "(" substr(expand_remaining, 1, RSTART-1) ")"
-				if(DEBUG) printf "e: →%s←\n", expanded >"/dev/stderr"
+				expanded = expanded substr(expand_remaining, 1, RSTART-1)
 				expand_remaining = substr(expand_remaining, RSTART+1)
 			} else {
-				expanded = expanded "(" expand_remaining ")"
-				if(DEBUG) printf "e: →%s←\n", expanded >"/dev/stderr"
+				expanded = expand_remaining
 				expand_remaining = ""
 			}
 		} else {
@@ -43,8 +37,7 @@
 		}
 	}
 	if(expand_remaining) {
-		expanded = expanded "\"" expand_remaining "\""
-		if(DEBUG) printf "e: →%s←\n", expanded >"/dev/stderr"
+		expanded = "\"" expand_remaining "\""
 		expand_remaining = ""
 	}
 	return "get("expanded")"

=== modified file 'data.awk'
--- data.awk	2013-10-30 21:03:06 +0000
+++ data.awk	2013-09-28 19:59:05 +0000
@@ -77,7 +77,7 @@
 	loop_stack["depth"]--
 }
 
-function _get(varname,   i, n, names, values, loopvar, looprow, prefix) {
+function get(varname,   i, n, names, values, loopvar, looprow, prefix) {
 	for(i=loop_stack["depth"]; i>0; i--) {
 		prefix = loop_stack[i, "pre"]
 		if(prefix)
@@ -115,14 +115,6 @@
 	return V[varname]
 }
 
-function get(varname,   result) {
-	result = _get(varname)
-	if(DEBUG) {
-		print "get →" varname "← ⇒ →"result"←" >"/dev/stderr"
-	}
-	return result
-}
-
 function or_(a, b) {
 	return a ? a : b
 }