RegEx/JSON/Property.regex.ps1
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<# .Synopsis Matches a JSON property .Description Matches a JSON property. -PropertyName can be customized. #> param( [string] $PropertyName = '.+?' ) $jsonValue = @' \s{0,} # Match preceeding whitespace (?> # A JSON value can be: (?<IsTrue>true) # 'true' | # OR (?<IsFalse>false) # 'false' | # OR (?<IsNull>null) # 'null' | # OR (?<Object> # an object, which is \{ # An open brace (?> # Followed by... [^\{\}]+| # any number of non-brace character OR \{(?<Depth>)| # an open brace (in which case increment depth) OR \}(?<-Depth>) # a closed brace (in which case decrement depth) )*(?(Depth)(?!)) # until depth is 0. \} # followed by a closing brace ) | # OR (?<List> # a list, which is \[ # An open bracket (?> # Followed by... [^\[\]]+| # any number of non-bracket character OR \[(?<Depth>)| # an open bracket (in which case increment depth) OR \](?<-Depth>) # a closed bracket (in which case decrement depth) )*(?(Depth)(?!)) # until depth is 0. \] # followed by a closing bracket ) | # OR (?<String> # A string, which is " # an open quote .*? # followed by anything (?=(?<!\\)" # until the closing quote ) | # OR (?<Number> # A number, which (?<Decimals> (?<IsNegative>\-)? # It might be start with a - (?:(?> # Then it can be either: (?<Characteristic>\d+) # One or more digits (the Characteristic) (?:\.(?<Mantissa>\d+)){0,1} # followed by a period and one or more digits (the Mantissa) | # Or it can be (?:\.(?<Mantissa>\d+)) # just a Mantissa )) (?: # Optionally, there can also be an exponent E # which is the letter 'e' (?<Exponent>[+-]\d+) # followed by + or -, followed by digits. )? ) ) ) ) \s{0,} # Optionally match following whitespace '@ @" (?<= # After: [\{\,] # A bracket or comma ) \s{0,} # Optional Whitespace (?<Quoted>["'])? # There's an optional opening quote (?<Name> # Capture the Name, which is: $PropertyName # The PropertyName or Anything Until... ) (?= (?(Quoted) # If quoted ((?<!\\)\k<Quoted>) # the closing quote | ([\s:]) # otherwise, whitespace or a colon ) ) (?: # Match but don't store: (?(Quoted)(\k<Quoted>)) \s{0,} # a double-quote, optional whitespace: ) (?=\:) # Look ahead to see that we're followed by a :, but don't include it in the match. : (?<Value> $jsonValue ) "@ |