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73 lines
1.7 KiB
73 lines
1.7 KiB
#!/usr/bin/env miaou-bash
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function array_new {
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ref_name="$1"
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shift
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[[ -v nested_count ]] && ((nested_count++)) || nested_count=1
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nested_name="nested_$nested_count"
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declare -ga "$nested_name"
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declare -gn "$ref_name"="$nested_name"
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local -n internal="$nested_name"
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internal+=("$@")
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}
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function array_inspect {
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local -n ref="$1"
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prefix="${2:-}"
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echo "${prefix}array '$1' contains ${#ref[@]} elements"
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local i
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for i in "${ref[@]}"; do echo "${prefix}-> $i"; done
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echo "${prefix}----"
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}
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function nested_new {
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local internal
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ref_name="$1"
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shift
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[[ -v nested_count ]] && ((nested_count++)) || nested_count=1
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nested_name="nested_$nested_count"
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declare -gA "$nested_name"
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declare -gn "$ref_name"="$nested_name"
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declare -n internal="$nested_name"
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internal['TYPE']='NESTED_ARRAY'
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local i=0
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local j=0
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for j in "$@"; do
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internal["$i"]="$j"
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i=$((i + 1))
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done
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}
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function nested_inspect {
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local internal
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declare -n internal=$1
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[[ "${internal['TYPE']}" != 'NESTED_ARRAY' ]] && >&2 echo "expected nested array: $1" && return 1
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count=${#internal[@]}
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count=$((count - 1))
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echo "nested '$1' contains $count arrays"
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local i
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for ((i = 0; i < count; i++)); do
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array_inspect "${internal[$i]}" " => "
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done
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echo ----
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}
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# initialization
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array_new mine1 'Albert' 20
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array_new mine2 'Bob' 24
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array_new mine3 'Conrad' 31 true
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# change values
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mine1+=(false)
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: "$mine3" # pseudo use fix shellcheck issue
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mine3[2]=false
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nested_new nested1 mine1 mine2 mine3
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nested_inspect nested1
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# change nested values
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declare -n first="${nested1[0]:?}" # ':?' fix shellcheck issue
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first+=("nope")
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first[1]=$((first[1] + 5))
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nested_inspect nested1
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