[swift-corelibs-foundation]-- Fixed JSON Deserialisation of string values with spaces at the start String

[salmanjamil]

currently for strings that had spaces at the start, the spaces were ignored during deserialisation process. e.g "{"title" : " hello world!!" }" would deserialise into ["title" : "hello world!!"] instead of ["title" : " hello world!"] skipping the space at the start of hello world. This was due to func consumeStructure(ascii: UInt8, input: Index) throws -> Index? consuming white spaces at the start and end of every structure. The fix is just to consume the starting whitespace sequence in case of QuotationMark Structure.

[argon]

I think it would be preferable to treat this as a special case within parseString rather than complicate the consumeStructure function

func parseString(input: Index) throws -> (String, Index)? {
    guard let beginIndex = try consumeWhitespace(input).flatMap(consumeASCII(Structure.QuotationMark)) else {
        return nil
    }

[parkera]

Let's get the bug fix in now and fix up the style next.

[argon]

Great stuff. I'll get a pull request with the change opened shortly.

[argon]

☝️ 👉 #341