add HTTPMethod, HTTPStatus, MIME, and Scheme abstracts (#7355)

* add HTTPMethod, HTTPStatus, MIME, and Scheme abstracts

* fix camel case style
remove duplicate enum values

* rename class

std/haxe/http/HttpMethod.hx

@@ -0,0 +1,52 @@
+package haxe.http;
+/**
+    HTTP defines methods (sometimes referred to as verbs) to indicate the desired action to be performed on the identified resource. What this resource represents, whether pre-existing data or data that is generated dynamically, depends on the implementation of the server. Often, the resource corresponds to a file or the output of an executable residing on the server. The HTTP/1.0 specification[11] defined the GET, POST and HEAD methods and the HTTP/1.1 specification[12] added 5 new methods: OPTIONS, PUT, DELETE, TRACE and CONNECT. By being specified in these documents their semantics are well known and can be depended upon. Any client can use any method and the server can be configured to support any combination of methods. If a method is unknown to an intermediate it will be treated as an unsafe and non-idempotent method. There is no limit to the number of methods that can be defined and this allows for future methods to be specified without breaking existing infrastructure.
+**/
+@:enum abstract HttpMethod(String) from String to String  {
+
+/**
+    The POST method requests that the server accept the entity enclosed in the request as a new subordinate of the web resource identified by the URI. The data POSTed might be, for example, an annotation for existing resources; a message for a bulletin board, newsgroup, mailing list, or comment thread; a block of data that is the result of submitting a web form to a data-handling process; or an item to add to a database
+ **/
+    var Post = 'POST';
+
+/**
+    The GET method requests a representation of the specified resource. Requests using GET should only retrieve data and should have no other effect. (This is also true of some other HTTP methods.)[1] The W3C has published guidance principles on this distinction, saying, "Web application design should be informed by the above principles, but also by the relevant limitations."[13] See safe methods below.
+ **/
+    var Get = 'GET';
+
+/**
+    The HEAD method asks for a response identical to that of a GET request, but without the response body. This is useful for retrieving meta-information written in response headers, without having to transport the entire content.
+ */
+    var Head = 'HEAD';
+
+/**
+    The PUT method requests that the enclosed entity be stored under the supplied URI. If the URI refers to an already existing resource, it is modified; if the URI does not point to an existing resource, then the server can create the resource with that URI
+ */
+    var Put = 'PUT';
+
+/**
+    The DELETE method deletes the specified resource.
+ */
+    var Delete = 'DELETE';
+
+/**
+    The TRACE method echoes the received request so that a client can see what (if any) changes or additions have been made by intermediate servers
+ */
+    var Trace = 'TRACE';
+
+/**
+    The OPTIONS method returns the HTTP methods that the server supports for the specified URL. This can be used to check the functionality of a web server by requesting '*' instead of a specific resource.
+ */
+    var Options = 'OPTIONS';
+
+/**
+    The CONNECT method converts the request connection to a transparent TCP/IP tunnel, usually to facilitate SSL-encrypted communication (HTTPS) through an unencrypted HTTP proxy.
+ */
+    var Connect = 'CONNECT';
+
+/**
+    The PATCH method applies partial modifications to a resource.
+ */
+    var Patch = 'PATCH';
+
+}

std/haxe/http/HttpStatus.hx

@@ -0,0 +1,68 @@
+package haxe.http;
+
+/**
+    HTTP Request Status
+ **/
+@:enum abstract HttpStatus(Int) from Int to Int {
+    var Continue = 100;
+    var SwitchingProtocols = 101;
+    var Processing = 102;
+    var OK = 200;
+    var Created = 201;
+    var Accepted = 202;
+    var NonAuthoritativeInformation = 203;
+    var NoContent = 204;
+    var ResetContent = 205;
+    var PartialContent = 206;
+    var MultiStatus = 207;
+    var AlreadyReported = 208;
+    var IMUsed = 226;
+    var MultipleChoices = 300;
+    var MovedPermanently = 301;
+    var Found = 302;
+    var SeeOther = 303;
+    var NotModified = 304;
+    var UseProxy = 305;
+    var SwitchProxy = 306;
+    var TemporaryRedirect = 307;
+    var PermanentRedirect = 308;
+    var BadRequest = 400;
+    var Unauthorized = 401;
+    var PaymentRequired = 402;
+    var Forbidden = 403;
+    var NotFound = 404;
+    var MethodNotAllowed = 405;
+    var NotAcceptable = 406;
+    var ProxyAuthenticationRequired = 407;
+    var RequestTimeout = 408;
+    var Conflict = 409;
+    var Gone = 410;
+    var LengthRequired = 411;
+    var PreconditionFailed = 412;
+    var PayloadTooLarge = 413;
+    var URITooLong = 414;
+    var UnsupportedMediaType = 415;
+    var RangeNotSatisfiable = 416;
+    var ExpectationFailed = 417;
+    var ImATeapot = 418;
+    var MisdirectedRequest = 421;
+    var UnprocessableEntity = 422;
+    var Locked = 423;
+    var FailedDependency = 424;
+    var UpgradeRequired = 426;
+    var PreconditionRequired = 428;
+    var TooManyRequests = 429;
+    var RequestHeaderFieldsTooLarge = 431;
+    var UnavailableForLegalReasons = 451;
+    var InternalServerError = 500;
+    var NotImplemented = 501;
+    var BadGateway = 502;
+    var ServiceUnavailable = 503;
+    var GatewayTimeout = 504;
+    var HTTPVersionNotSupported = 505;
+    var VariantAlsoNegotiates = 506;
+    var InsufficientStorage = 507;
+    var LoopDetected = 508;
+    var NotExtended = 510;
+    var NetworkAuthenticationRequired = 511;
+}

std/haxe/io/Mime.hx

@@ -0,0 +1,322 @@
+package haxe.io;
+
+/**
+    Html MimeType Enum
+    @see : http://www.sitepoint.com/web-foundations/mime-types-complete-list/
+ **/
+
+@:enum abstract Mime(String) from String to String {
+    var XWorldX3dmf = 'x-world/x-3dmf';
+    var ApplicationOctetStream = 'application/octet-stream';
+    var ApplicationXAuthorwareBin = 'application/x-authorware-bin';
+    var ApplicationXAuthorwareMap = 'application/x-authorware-map';
+    var ApplicationXAuthorwareSeg = 'application/x-authorware-seg';
+    var TextVndAbc = 'text/vnd.abc';
+    var TextHtml = 'text/html';
+    var VideoAnimaflex = 'video/animaflex';
+    var ApplicationPostscript = 'application/postscript';
+    var AudioAiff = 'audio/aiff';
+    var AudioXAiff = 'audio/x-aiff';
+    var ApplicationXAim = 'application/x-aim';
+    var TextXAudiosoftIntra = 'text/x-audiosoft-intra';
+    var ApplicationXNaviAnimation = 'application/x-navi-animation';
+    var ApplicationXNokia9000CommunicatorAddOnSoftware = 'application/x-nokia-9000-communicator-add-on-software';
+    var ApplicationMime = 'application/mime';
+    var ApplicationArj = 'application/arj';
+    var ImageXJg = 'image/x-jg';
+    var VideoXMsAsf = 'video/x-ms-asf';
+    var TextXAsm = 'text/x-asm';
+    var TextAsp = 'text/asp';
+    var ApplicationXMplayer2 = 'application/x-mplayer2';
+    var AudioBasic = 'audio/basic';
+    var ApplicationXTroffMsvideo = 'application/x-troff-msvideo';
+    var VideoAvi = 'video/avi';
+    var VideoMsvideo = 'video/msvideo';
+    var VideoXMsvideo = 'video/x-msvideo';
+    var VideoAvsVideo = 'video/avs-video';
+    var ApplicationXBcpio = 'application/x-bcpio';
+    var ApplicationMacBinary = 'application/mac-binary';
+    var ApplicationMacbinary = 'application/macbinary';
+    var ApplicationXBinary = 'application/x-binary';
+    var ApplicationXMacbinary = 'application/x-macbinary';
+    var ImageBmp = 'image/bmp';
+    var ImageXWindowsBmp = 'image/x-windows-bmp';
+    var ApplicationBook = 'application/book';
+    var ApplicationXBzip2 = 'application/x-bzip2';
+    var ApplicationXBsh = 'application/x-bsh';
+    var ApplicationXBzip = 'application/x-bzip';
+    var TextPlain = 'text/plain';
+    var TextXC = 'text/x-c';
+    var ApplicationVndMsPkiSeccat = 'application/vnd.ms-pki.seccat';
+    var ApplicationClariscad = 'application/clariscad';
+    var ApplicationXCocoa = 'application/x-cocoa';
+    var ApplicationCdf = 'application/cdf';
+    var ApplicationXCdf = 'application/x-cdf';
+    var ApplicationXNetcdf = 'application/x-netcdf';
+    var ApplicationPkixCert = 'application/pkix-cert';
+    var ApplicationXX509CaCert = 'application/x-x509-ca-cert';
+    var ApplicationXChat = 'application/x-chat';
+    var ApplicationJava = 'application/java';
+    var ApplicationJavaByteCode = 'application/java-byte-code';
+    var ApplicationXJavaClass = 'application/x-java-class';
+    var ApplicationXCpio = 'application/x-cpio';
+    var ApplicationMacCompactpro = 'application/mac-compactpro';
+    var ApplicationPkcsCrl = 'application/pkcs-crl';
+    var ApplicationXCsh = 'application/x-csh';
+    var TextCss = 'text/css';
+    var ApplicationXDirector = 'application/x-director';
+    var ApplicationXDeepv = 'application/x-deepv';
+    var VideoXDv = 'video/x-dv';
+    var VideoDl = 'video/dl';
+    var ApplicationMsword = 'application/msword';
+    var ApplicationCommonground = 'application/commonground';
+    var ApplicationDrafting = 'application/drafting';
+    var ApplicationXDvi = 'application/x-dvi';
+    var DrawingXDwf = 'drawing/x-dwf (old)';
+    var ApplicationAcad = 'application/acad';
+    var ApplicationDxf = 'application/dxf';
+    var TextXScriptElisp = 'text/x-script.elisp';
+    var ApplicationXBytecodeElisp = 'application/x-bytecode.elisp (compiled elisp)';
+    var ApplicationXEnvoy = 'application/x-envoy';
+    var ApplicationXEsrehber = 'application/x-esrehber';
+    var TextXSetext = 'text/x-setext';
+    var ApplicationEnvoy = 'application/envoy';
+    var TextXFortran = 'text/x-fortran';
+    var ApplicationVndFdf = 'application/vnd.fdf';
+    var ImageFif = 'image/fif';
+    var VideoFli = 'video/fli';
+    var ImageFlorian = 'image/florian';
+    var TextVndFmiFlexstor = 'text/vnd.fmi.flexstor';
+    var VideoXAtomic3dFeature = 'video/x-atomic3d-feature';
+    var ImageVndFpx = 'image/vnd.fpx';
+    var ApplicationFreeloader = 'application/freeloader';
+    var AudioMake = 'audio/make';
+    var ImageG3fax = 'image/g3fax';
+    var ImageGif = 'image/gif';
+    var VideoGl = 'video/gl';
+    var AudioXGsm = 'audio/x-gsm';
+    var ApplicationXGsp = 'application/x-gsp';
+    var ApplicationXGss = 'application/x-gss';
+    var ApplicationXGtar = 'application/x-gtar';
+    var ApplicationXCompressed = 'application/x-compressed';
+    var ApplicationXGzip = 'application/x-gzip';
+    var ApplicationXHdf = 'application/x-hdf';
+    var ApplicationXHelpfile = 'application/x-helpfile';
+    var TextXScript = 'text/x-script';
+    var ApplicationHlp = 'application/hlp';
+    var ApplicationVndHpHpgl = 'application/vnd.hp-hpgl';
+    var ApplicationBinhex = 'application/binhex';
+    var ApplicationHta = 'application/hta';
+    var TextXComponent = 'text/x-component';
+    var TextWebviewhtml = 'text/webviewhtml';
+    var XConferenceXCooltalk = 'x-conference/x-cooltalk';
+    var ImageXIcon = 'image/x-icon';
+    var ImageIef = 'image/ief';
+    var ApplicationIges = 'application/iges';
+    var ApplicationXIma = 'application/x-ima';
+    var ApplicationXHttpdImap = 'application/x-httpd-imap';
+    var ApplicationInf = 'application/inf';
+    var ApplicationXInternettSignup = 'application/x-internett-signup';
+    var ApplicationXIp2 = 'application/x-ip2';
+    var VideoXIsvideo = 'video/x-isvideo';
+    var AudioIt = 'audio/it';
+    var ApplicationXInventor = 'application/x-inventor';
+    var IWorldIVrml = 'i-world/i-vrml';
+    var ApplicationXLivescreen = 'application/x-livescreen';
+    var AudioXJam = 'audio/x-jam';
+    var ApplicationXJavaCommerce = 'application/x-java-commerce';
+    var ImageJpeg = 'image/jpeg';
+    var ImageXJps = 'image/x-jps';
+    var TextJavascript = 'text/javascript';
+    var ApplicationJson = 'application/json';
+    var ApplicationJavascript = 'application/javascript';
+    var ImageJutvision = 'image/jutvision';
+    var AudioMidi = 'audio/midi';
+    var ApplicationXKsh = 'application/x-ksh';
+    var AudioNspaudio = 'audio/nspaudio';
+    var AudioXLiveaudio = 'audio/x-liveaudio';
+    var ApplicationXLatex = 'application/x-latex';
+    var ApplicationXLisp = 'application/x-lisp';
+    var TextXLaAsf = 'text/x-la-asf';
+    var ApplicationLzx = 'application/lzx';
+    var VideoMpeg = 'video/mpeg';
+    var AudioMpeg = 'audio/mpeg';
+    var AudioXMpequrl = 'audio/x-mpequrl';
+    var ApplicationXTroffMan = 'application/x-troff-man';
+    var ApplicationXNavimap = 'application/x-navimap';
+    var ApplicationMbedlet = 'application/mbedlet';
+    var ApplicationXMagicCapPackage10 = 'application/x-magic-cap-package-1.0';
+    var ApplicationMcad = 'application/mcad';
+    var ImageVasa = 'image/vasa';
+    var ApplicationNetmc = 'application/netmc';
+    var ApplicationXTroffMe = 'application/x-troff-me';
+    var MessageRfc822 = 'message/rfc822';
+    var ApplicationXMif = 'application/x-mif';
+    var WwwMime = 'www/mime';
+    var AudioXVndAudioexplosionMjuicemediafile = 'audio/x-vnd.audioexplosion.mjuicemediafile';
+    var VideoXMotionJpeg = 'video/x-motion-jpeg';
+    var ApplicationBase64 = 'application/base64';
+    var AudioMod = 'audio/mod';
+    var VideoQuicktime = 'video/quicktime';
+    var VideoXSgiMovie = 'video/x-sgi-movie';
+    var AudioMpeg3 = 'audio/mpeg3';
+    var ApplicationXProject = 'application/x-project';
+    var ApplicationVndMsProject = 'application/vnd.ms-project';
+    var ApplicationMarc = 'application/marc';
+    var ApplicationXTroffMs = 'application/x-troff-ms';
+    var ApplicationXVndAudioexplosionMzz = 'application/x-vnd.audioexplosion.mzz';
+    var ImageNaplps = 'image/naplps';
+    var ApplicationVndNokiaConfigurationMessage = 'application/vnd.nokia.configuration-message';
+    var ImageXNiff = 'image/x-niff';
+    var ApplicationXMixTransfer = 'application/x-mix-transfer';
+    var ApplicationXConference = 'application/x-conference';
+    var ApplicationXNavidoc = 'application/x-navidoc';
+    var ApplicationOda = 'application/oda';
+    var ApplicationXOmc = 'application/x-omc';
+    var ApplicationXOmcdatamaker = 'application/x-omcdatamaker';
+    var ApplicationXOmcregerator = 'application/x-omcregerator';
+    var TextXPascal = 'text/x-pascal';
+    var ApplicationPkcs10 = 'application/pkcs10';
+    var ApplicationPkcs12 = 'application/pkcs-12';
+    var ApplicationXPkcs7Signature = 'application/x-pkcs7-signature';
+    var ApplicationPkcs7Mime = 'application/pkcs7-mime';
+    var ApplicationXPkcs7Certreqresp = 'application/x-pkcs7-certreqresp';
+    var ApplicationPkcs7Signature = 'application/pkcs7-signature';
+    var ApplicationPro_eng = 'application/pro_eng';
+    var TextPascal = 'text/pascal';
+    var ImageXPortableBitmap = 'image/x-portable-bitmap';
+    var ApplicationVndHpPcl = 'application/vnd.hp-pcl';
+    var ImageXPict = 'image/x-pict';
+    var ImageXPcx = 'image/x-pcx';
+    var ChemicalXPdb = 'chemical/x-pdb';
+    var ApplicationPdf = 'application/pdf';
+    var ImageXPortableGraymap = 'image/x-portable-graymap';
+    var ImagePict = 'image/pict';
+    var ApplicationXNewtonCompatiblePkg = 'application/x-newton-compatible-pkg';
+    var ApplicationVndMsPkiPko = 'application/vnd.ms-pki.pko';
+    var ApplicationXPixclscript = 'application/x-pixclscript';
+    var ImageXXpixmap = 'image/x-xpixmap';
+    var ApplicationXPagemaker = 'application/x-pagemaker';
+    var ImagePng = 'image/png';
+    var ApplicationXPortableAnymap = 'application/x-portable-anymap';
+    var ApplicationMspowerpoint = 'application/mspowerpoint';
+    var ModelXPov = 'model/x-pov';
+    var ApplicationVndMsPowerpoint = 'application/vnd.ms-powerpoint';
+    var ImageXPortablePixmap = 'image/x-portable-pixmap';
+    var ApplicationXFreelance = 'application/x-freelance';
+    var PaleovuXPv = 'paleovu/x-pv';
+    var TextXScriptPhyton = 'text/x-script.phyton';
+    var ApplicationXBytecodePython = 'application/x-bytecode.python';
+    var AudioVndQcelp = 'audio/vnd.qcelp';
+    var ImageXQuicktime = 'image/x-quicktime';
+    var VideoXQtc = 'video/x-qtc';
+    var AudioXPnRealaudio = 'audio/x-pn-realaudio';
+    var ApplicationXCmuRaster = 'application/x-cmu-raster';
+    var ImageCmuRaster = 'image/cmu-raster';
+    var TextXScriptRexx = 'text/x-script.rexx';
+    var ImageVndRnRealflash = 'image/vnd.rn-realflash';
+    var ImageXRgb = 'image/x-rgb';
+    var ApplicationVndRnRealmedia = 'application/vnd.rn-realmedia';
+    var AudioMid = 'audio/mid';
+    var ApplicationRingingTones = 'application/ringing-tones';
+    var ApplicationVndRnRealplayer = 'application/vnd.rn-realplayer';
+    var ApplicationXTroff = 'application/x-troff';
+    var ImageVndRnRealpix = 'image/vnd.rn-realpix';
+    var AudioXPnRealaudioPlugin = 'audio/x-pn-realaudio-plugin';
+    var TextRichtext = 'text/richtext';
+    var ApplicationRtf = 'application/rtf';
+    var VideoVndRnRealvideo = 'video/vnd.rn-realvideo';
+    var AudioS3m = 'audio/s3m';
+    var ApplicationXTbook = 'application/x-tbook';
+    var ApplicationXLotusscreencam = 'application/x-lotusscreencam';
+    var ApplicationSdp = 'application/sdp';
+    var ApplicationSounder = 'application/sounder';
+    var ApplicationSea = 'application/sea';
+    var ApplicationSet = 'application/set';
+    var AudioXPsid = 'audio/x-psid';
+    var ApplicationXSit = 'application/x-sit';
+    var ApplicationXKoan = 'application/x-koan';
+    var ApplicationXSeelogo = 'application/x-seelogo';
+    var ApplicationSmil = 'application/smil';
+    var ApplicationSolids = 'application/solids';
+    var ApplicationXPkcs7Certificates = 'application/x-pkcs7-certificates';
+    var ApplicationFuturesplash = 'application/futuresplash';
+    var ApplicationXSprite = 'application/x-sprite';
+    var ApplicationXWaisSource = 'application/x-wais-source';
+    var TextXServerParsedHtml = 'text/x-server-parsed-html';
+    var ApplicationStreamingmedia = 'application/streamingmedia';
+    var ApplicationVndMsPkiCertstore = 'application/vnd.ms-pki.certstore';
+    var ApplicationStep = 'application/step';
+    var ApplicationSla = 'application/sla';
+    var ApplicationXSv4cpio = 'application/x-sv4cpio';
+    var ApplicationXSv4crc = 'application/x-sv4crc';
+    var ImageVndDwg = 'image/vnd.dwg';
+    var ApplicationXWorld = 'application/x-world';
+    var ApplicationXShockwaveFlash = 'application/x-shockwave-flash';
+    var TextXSpeech = 'text/x-speech';
+    var ApplicationXTar = 'application/x-tar';
+    var ApplicationToolbook = 'application/toolbook';
+    var ApplicationXTcl = 'application/x-tcl';
+    var TextXScriptTcsh = 'text/x-script.tcsh';
+    var ApplicationXTex = 'application/x-tex';
+    var ApplicationXTexinfo = 'application/x-texinfo';
+    var ApplicationGnutar = 'application/gnutar';
+    var ImageTiff = 'image/tiff';
+    var AudioTspAudio = 'audio/tsp-audio';
+    var ApplicationDsptype = 'application/dsptype';
+    var TextTabSeparatedValues = 'text/tab-separated-values';
+    var TextXUil = 'text/x-uil';
+    var TextUriList = 'text/uri-list';
+    var ApplicationIDeas = 'application/i-deas';
+    var ApplicationXUstar = 'application/x-ustar';
+    var TextXUuencode = 'text/x-uuencode';
+    var ApplicationXCdlink = 'application/x-cdlink';
+    var TextXVcalendar = 'text/x-vcalendar';
+    var ApplicationVda = 'application/vda';
+    var VideoVdo = 'video/vdo';
+    var ApplicationGroupwise = 'application/groupwise';
+    var VideoVivo = 'video/vivo';
+    var ApplicationVocaltecMediaDesc = 'application/vocaltec-media-desc';
+    var ApplicationVocaltecMediaFile = 'application/vocaltec-media-file';
+    var AudioVoc = 'audio/voc';
+    var VideoVosaic = 'video/vosaic';
+    var AudioVoxware = 'audio/voxware';
+    var AudioXTwinvqPlugin = 'audio/x-twinvq-plugin';
+    var AudioXTwinvq = 'audio/x-twinvq';
+    var ApplicationXVrml = 'application/x-vrml';
+    var XWorldXVrt = 'x-world/x-vrt';
+    var ApplicationXVisio = 'application/x-visio';
+    var ApplicationWordperfect60 = 'application/wordperfect6.0';
+    var ApplicationWordperfect61 = 'application/wordperfect6.1';
+    var AudioWav = 'audio/wav';
+    var ApplicationXQpro = 'application/x-qpro';
+    var ImageVndWapWbmp = 'image/vnd.wap.wbmp';
+    var ApplicationVndXara = 'application/vnd.xara';
+    var ImageWebp = 'image/webp';
+    var ApplicationX123 = 'application/x-123';
+    var WindowsMetafile = 'windows/metafile';
+    var TextVndWapWml = 'text/vnd.wap.wml';
+    var ApplicationVndWapWmlc = 'application/vnd.wap.wmlc';
+    var TextVndWapWmlscript = 'text/vnd.wap.wmlscript';
+    var ApplicationVndWapWmlscriptc = 'application/vnd.wap.wmlscriptc';
+    var ApplicationWordperfect = 'application/wordperfect';
+    var ApplicationXLotus = 'application/x-lotus';
+    var ApplicationMswrite = 'application/mswrite';
+    var ModelVrml = 'model/vrml';
+    var TextScriplet = 'text/scriplet';
+    var ApplicationXWintalk = 'application/x-wintalk';
+    var ImageXXbitmap = 'image/x-xbitmap';
+    var VideoXAmtDemorun = 'video/x-amt-demorun';
+    var XglDrawing = 'xgl/drawing';
+    var ImageVndXiff = 'image/vnd.xiff';
+    var ApplicationExcel = 'application/excel';
+    var AudioXm = 'audio/xm';
+    var ApplicationXml = 'application/xml';
+    var XglMovie = 'xgl/movie';
+    var ApplicationXVndLsXpix = 'application/x-vnd.ls-xpix';
+    var VideoXAmtShowrun = 'video/x-amt-showrun';
+    var ImageXXwd = 'image/x-xwd';
+    var ApplicationXCompress = 'application/x-compress';
+    var MultipartXZip = 'multipart/x-zip';
+    var TextXScriptZsh = 'text/x-script.zsh';
+}

std/haxe/io/Scheme.hx

@@ -0,0 +1,14 @@
+package haxe.io;
+/**
+    The scheme consists of a sequence of characters beginning with a letter and followed by any combination of letters, digits, plus (+), period (.), or hyphen (-). Although schemes are case-insensitive, the canonical form is lowercase and documents that specify schemes must do so with lowercase letters. It is followed by a colon (:).
+**/
+@:enum abstract Scheme(String) from String to String  {
+
+    var Http = 'http';
+    var Https = 'https';
+    var Ftp = 'ftp';
+    var MailTo = 'mailto';
+    var File = 'file';
+    var Data = 'data';
+
+}