Fix handling of filenames with spaces and ampersands

iasha1check

@@ -3,7 +3,7 @@
 
 identifier="$1"
 escapedIdentifier="$(sed 's/[.[\*^$()+?{|]/\\&/g' <<<"${identifier}")"
-readarray -t iasha1sums < <(curl -sL "https://archive.org/download/${identifier}/${identifier}_files.xml" | tr -d '\n' | grep -Po '<file .*?</file>' | grep 'source="original".*<sha1>' | sed 's,^.*name=",,; s,".*<sha1>, ,; s,</sha1>.*$,,' | grep -Pv "^${escapedIdentifier}"'(\.cdx\.(gz|idx)|_meta\.(sqlite|xml)) ' | awk '{ print $2 "  " $1 }')
+readarray -t iasha1sums < <(curl -sL "https://archive.org/download/${identifier}/${identifier}_files.xml" | tr -d '\n' | grep -Po '<file .*?</file>' | grep 'source="original".*<sha1>' | sed 's,^.*name=",,; s,".*<sha1>, ,; s,</sha1>.*$,,' | grep -Pv "^${escapedIdentifier}"'(\.cdx\.(gz|idx)|_meta\.(sqlite|xml)) ' | sed 's,&amp;,\&,g' | awk '{ print $NF "  " substr($0, 1, length($0) - length($NF) - 1) }')
 
 localFiles=()
 while IFS= read -r -d $'\0' f; do localFiles+=("${f:2}"); done < <(find . -type f -print0)