# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1726434597 -7200
# Node ID ac7ab3d98cd271a54928b940b8a31276be5aef7f
# Parent  4fd6be157c7032ef55933f90d3bc2ac03e9f5cfb
farray.sh: more thorough index checks where needed.

Numeric evaluation is sometimes sloppy and seems to return 0 on errors in
many cases.

diff -r 4fd6be157c70 -r ac7ab3d98cd2 share/local-bsdtools/farray.sh
--- a/share/local-bsdtools/farray.sh	Sun Sep 15 22:35:37 2024 +0200
+++ b/share/local-bsdtools/farray.sh	Sun Sep 15 23:09:57 2024 +0200
@@ -390,6 +390,7 @@
     [ -z "${__farr_index}" ] && _farr_fatal "no valid index for set given"
     # make it to a number
     __farr_index=$((__farr_index + 0))
+    [ ${__farr_index} -lt 1 ] && _farr_fatal "index must be >= 1"
     __farr_value="${3-}"
 
     # For proper quoting: see farray_append
@@ -644,7 +645,9 @@
     __farr_searched_value="$2"
 
     __farr_start=$((${4-1} + 0))
+    [ ${__farr_start} -lt 1 ] && _farr_fatal "start index must be >= 1"
     __farr_end=$((${5-${__farr_len}} + 0))
+    [ ${__farr_end} -lt 1 ] && _farr_fatal "end index must be >= 1"
 
     __farr_cur_idx=${__farr_start}
     while [ ${__farr_cur_idx} -le ${__farr_end} ]; do