From 3613753da4cc47331f0cebd49445da357b8b5f75 Mon Sep 17 00:00:00 2001
From: Alberto Fanjul <albertofanjul@gmail.com>
Date: Fri, 22 May 2020 15:04:32 +0200
Subject: [PATCH] Be more explicit about errors

---
 src/xlsparse.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/xlsparse.c b/src/xlsparse.c
index 96830be..8f39fd2 100644
--- a/src/xlsparse.c
+++ b/src/xlsparse.c
@@ -343,8 +343,15 @@ void process_item (int rectype, int reclen, unsigned char *rec) {
 				*pcell=(unsigned char *)strdup(buf);
 			} else if (rec[6]==2) {
 				/*error*/
-				char buf[6]="ERROR";
-				*pcell=(unsigned char *)strdup(buf);
+				char buf[]="ERROR";
+				if (rec[8]==7)
+					*pcell=(unsigned char *)strdup("DIV/0!");
+				else if (rec[8]==15)
+					*pcell=(unsigned char *)strdup("NULL!");
+				else if (rec[8]==29)
+					*pcell=(unsigned char *)strdup("NAME?");
+				else
+					*pcell=(unsigned char *)strdup("ERROR");
 			} else if (rec[6]==0) {
 				saved_reference=pcell;
 			}