Class JSONParser

JuceLibraryCode/modules/juce_core/javascript/juce_JSON.cpp:26–304

{

struct JSONParser
{
    JSONParser (String::CharPointerType text) : startLocation (text), currentLocation (text) {}

    String::CharPointerType startLocation, currentLocation;

    struct ErrorException
    {
        String message;
        int line = 1, column = 1;

        String getDescription() const   { return String (line) + ":" + String (column) + ": error: " + message; }
        Result getResult() const        { return Result::fail (getDescription()); }
    };

    [[noreturn]] void throwError (juce::String message, String::CharPointerType location)
    {
        ErrorException e;
        e.message = std::move (message);

        for (auto i = startLocation; i < location && ! i.isEmpty(); ++i)
        {
            ++e.column;
            if (*i == '\n')  { e.column = 1; e.line++; }
        }

        throw e;
    }

    void skipWhitespace()             { currentLocation = currentLocation.findEndOfWhitespace(); }
    juce_wchar readChar()             { return currentLocation.getAndAdvance(); }
    juce_wchar peekChar() const       { return *currentLocation; }
    bool matchIf (char c)             { if (peekChar() == (juce_wchar) c) { ++currentLocation; return true; } return false; }
    bool isEOF() const                { return peekChar() == 0; }

    bool matchString (const char* t)
    {
        while (*t != 0)
            if (! matchIf (*t++))
                return false;

        return true;
    }

    var parseObjectOrArray()
    {
        skipWhitespace();

        if (matchIf ('{')) return parseObject();
        if (matchIf ('[')) return parseArray();

        if (! isEOF())
            throwError ("Expected '{' or '['", currentLocation);

        return {};
    }

    String parseString (const juce_wchar quoteChar)