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#!/usr/bin/awk -f
BEGIN {
FS = "[ ]"; # use a single space as field separator and don't trim input
ind = 0; # indentation level
last = ARGC - 3; # last argument index
exitcode = 1; # whether anything has been matched
if(last < 0) { # there should be at least one argument after the filename
exit 1;
}
ARGC = 2; # don't read ARGV[2] and onward as files
}
END {
exit exitcode;
}
$0 != "" { # exit when the indentation block is exited
for(i = 0; i < ind; i++) {
if(! sub(/^\t/, "")) {
exit exitcode;
}
}
}
# if on the last argument, interpret it as a key and print the value
ind == last && $1 == ARGV[ind + 2] {
exitcode = 0;
print substr($0, length($1) + 2);
}
# if not on the last argument, find the string exactly and increment indentation
ind != last && $0 == ARGV[ind + 2] {
ind++;
}
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