generated from loic/c-template
43 lines
1.7 KiB
Bash
43 lines
1.7 KiB
Bash
#!/usr/bin/env bash
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set -o posix
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i=5
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src=$'#!/usr/bin/env bash\nset -o posix\n\ni=~\nsrc=$\'@\'\n\nescape_quine() {\n\tlocal char="$1" ref="$2"\n\tcase "$char" in\n\t\t$\'\\\\\')\tprintf -v "$ref" \'%s\' \'\\\\\' ;;\n\t\t$\'\\\'\')\tprintf -v "$ref" \'%s\' "\\\'" ;;\n\t\t$\'\\t\')\tprintf -v "$ref" \'%s\' \'\\t\' ;;\n\t\t$\'\\n\')\tprintf -v "$ref" \'%s\' \'\\n\' ;;\n\t\t*)\t\tprintf -v "$ref" \'%s\' "$char" ;;\n\tesac\n}\n\nrun_quine() {\n# One comments must be present\n\toutput=\'\'\n\tfor (( k=0; k<${#src}; k++ )); do\n\t\tc="${src:k:1}"\n\t\tif [[ "$c" == $\'\\x40\' ]]; then\n\t\t\tfor (( j=0; j<${#src}; j++ )); do\n\t\t\t\tout=""\n\t\t\t\tescape_quine "${src:j:1}" out\n\t\t\t\toutput+="$out"\n\t\t\tdone\n\t\telif [[ "$c" == $\'\\x7e\' ]]; then\n\t\t\toutput+="$(( i - 1 ))"\n\t\telse\n\t\t\toutput+="$c"\n\t\tfi\n\tdone\n\tprintf \'%s\' "$output" > "Sully_$(( i - 1 )).sh"\n}\n\nif (( i - 1 < 0 )); then\n\texit 0\nfi\nrun_quine\n\nexec bash "Sully_$(( i - 1 )).sh"\n'
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escape_quine() {
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local char="$1" ref="$2"
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case "$char" in
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$'\\') printf -v "$ref" '%s' '\\' ;;
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$'\'') printf -v "$ref" '%s' "\'" ;;
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$'\t') printf -v "$ref" '%s' '\t' ;;
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$'\n') printf -v "$ref" '%s' '\n' ;;
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*) printf -v "$ref" '%s' "$char" ;;
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esac
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}
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run_quine() {
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# One comments must be present
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output=''
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for (( k=0; k<${#src}; k++ )); do
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c="${src:k:1}"
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if [[ "$c" == $'\x40' ]]; then
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for (( j=0; j<${#src}; j++ )); do
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out=""
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escape_quine "${src:j:1}" out
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output+="$out"
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done
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elif [[ "$c" == $'\x7e' ]]; then
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output+="$(( i - 1 ))"
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else
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output+="$c"
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fi
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done
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printf '%s' "$output" > "Sully_$(( i - 1 )).sh"
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}
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if (( i - 1 < 0 )); then
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exit 0
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fi
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run_quine
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exec bash "Sully_$(( i - 1 )).sh"
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