From d70eb3def648005ae523f4fa7f2c5813365b2232 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sat, 20 Feb 2016 20:20:23 -0500
Subject: scan_wordexp(): Catch and rethrow some uncaught exceptions

---
diff --git a/parsing/lexer.sh b/parsing/lexer.sh
index a7fbb80..ad076dc 100644
--- a/parsing/lexer.sh
+++ b/parsing/lexer.sh
@@ -349,7 +349,10 @@ scan_wordexp()
 						[@*#?$!A-Za-z0-9_-])
 							# String length
 							# expansion
-							res="$(scan_param)"
+							if ! res="$(scan_param)"
+							then
+								exit 1
+							fi
 							ln_off=${res%%${RS}*}
 							res="${res#*${RS}}"
 							c="${res%%${RS}*}"
@@ -422,7 +425,9 @@ scan_wordexp()
 			fi
 			if ${mod}; then
 				# Get word.
-				res="$(scan_word true)"
+				if ! res="$(scan_word true)"; then
+					exit 1
+				fi
 				ln_off=${res%%${RS}*}
 				res="${res#*${RS}}"
 				c="${res%%${RS}*}"
@@ -474,7 +479,9 @@ scan_wordexp()
 			esac
 			;;
 		[@*#?$!A-Za-z0-9_-])
-			res="$(scan_param)"
+			if ! res="$(scan_param)"; then
+				exit 1
+			fi
 			ln_off=${res%%${RS}*}
 			res="${res#*${RS}}"
 			c="${res%%${RS}*}"
--
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