parse props from structured loggin

out.txt

{"query"=>"can contain spaces", "span"=>"1h"}
{"query"=>"can contain spaces", "span"=>"1h"}
{"query"=>"can contain spaces", "span"=>"1h"}
{"query"=>"can contain spaces", "span"=>"1h"}
{"query"=>"can contain spaces"}
{"query"=>"can contain spaces"}
{"query"=>"can contain spaces"}
{"span"=>"1h"}
{"span"=>"1h"}
{"span"=>"1h"}
{}
{}

parser.rb

lines = <<~EOT
/monitor query=can contain spaces span=1h
/monitor span=1h query=can contain spaces
/monitor span="1h" query="can contain spaces"
/monitor span='1h' query='can contain spaces'
/monitor query=can contain spaces
/monitor query="can contain spaces"
/monitor query='can contain spaces'
/monitor span=1h
/monitor span='1h'
/monitor span="1h"
/monitor
ayy
EOT

def get_props(line)
  kv_pairs = /\/monitor\s+(.*)/.match(line)
  unless kv_pairs
    return {}
  end
  parse_kv(kv_pairs[0]).sort.to_h
end

def parse_kv(line)
  acc = {}
  while line
    match = /(\w+)=(.*?)(?=\w+=)(.*)/.match(line) || /(\w+)=(.*)/.match(line)
    key, value, rest = match[1..3]
    acc[key] = /([^'"].*[^'"])/.match(value.strip)[1]
    line = rest
  end
  acc
end


lines.split("\n").each do |line|
  puts get_props(line.strip).inspect
end