83 lines
1.9 KiB
Fish
83 lines
1.9 KiB
Fish
function getopts -d "cli parser"
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if not set -q argv[1]
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return
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end
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printf "%s\n" $argv | awk '
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function out(k,v) {
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print(k "" (v == "" ? "" : " "v))
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}
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function pop() {
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return len <= 0 ? "_" : opt[len--]
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}
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{
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if (done) {
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out("_" , $0)
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next
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}
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if (match($0, "^-[A-Za-z]+")) {
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$0 = "- " substr($0, 2, RLENGTH - 1) " " substr($0, RLENGTH + 1)
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} else if (match($0, "^--[A-Za-z0-9_-]+")) {
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$0 = "-- " substr($0, 3, RLENGTH - 2) " " substr($0, RLENGTH + 2)
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}
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if ($1 == "--" && $2 == "") {
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done = 1
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} else if ($2 == "" || $1 !~ /^-|^--/ ) {
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out(pop(), $0)
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} else {
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while (len) {
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out(pop())
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}
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if ($3 != "") {
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if (match($0, $2)) {
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$3 = substr($0, RSTART + RLENGTH + 1)
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}
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}
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if ($1 == "--") {
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if ($3 == "") {
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opt[++len] = $2
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} else {
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out($2, $3)
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}
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}
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if ($1 == "-") {
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if ($2 == "") {
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print($1)
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next
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} else {
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n = split($2, keys, "")
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}
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if ($3 == "") {
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opt[++len] = keys[n]
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} else {
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out(keys[n], $3)
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}
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for (i = 1; i < n; i++) {
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out(keys[i])
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}
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}
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}
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}
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END {
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while (len) {
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out(pop())
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}
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}
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'
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end
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