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## vim:ft=zsh
# VCS_INFO_hexdump FILENAME BYTECOUNT
#
# Return in $REPLY a hexadecimal representation (lowercase, no whitespace)
# of the first BYTECOUNT bytes of FILENAME.
if [[ -r $1 ]]; then
setopt localoptions nomultibyte extendedglob
local val
read -k $2 -u 0 val <$1
REPLY=${(Lj::)${(l:2::0:)${(@s//)val}//(#m)*/$(( [##16] ##$MATCH ))}}
else
return 1
fi
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