twitst4tz

twitter statistics web application
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urn.ts (2217B)

      1 import { URISchemeHandler, URIComponents, URIOptions } from "../uri";
      2 import { pctEncChar, SCHEMES } from "../uri";
      3 
      4 export interface URNComponents extends URIComponents {
      5 	nid?:string;
      6 	nss?:string;
      7 }
      8 
      9 export interface URNOptions extends URIOptions {
     10 	nid?:string;
     11 }
     12 
     13 const NID$ = "(?:[0-9A-Za-z][0-9A-Za-z\\-]{1,31})";
     14 const PCT_ENCODED$ = "(?:\\%[0-9A-Fa-f]{2})";
     15 const TRANS$$ = "[0-9A-Za-z\\(\\)\\+\\,\\-\\.\\:\\=\\@\\;\\$\\_\\!\\*\\'\\/\\?\\#]";
     16 const NSS$ = "(?:(?:" + PCT_ENCODED$ + "|" + TRANS$$ + ")+)";
     17 const URN_SCHEME = new RegExp("^urn\\:(" + NID$ + ")$");
     18 const URN_PATH = new RegExp("^(" + NID$ + ")\\:(" + NSS$ + ")$");
     19 const URN_PARSE = /^([^\:]+)\:(.*)/;
     20 const URN_EXCLUDED = /[\x00-\x20\\\"\&\<\>\[\]\^\`\{\|\}\~\x7F-\xFF]/g;
     21 
     22 //RFC 2141
     23 const handler:URISchemeHandler<URNComponents,URNOptions> = {
     24 	scheme : "urn",
     25 
     26 	parse : function (components:URIComponents, options:URNOptions):URNComponents {
     27 		const matches = components.path && components.path.match(URN_PARSE);
     28 		let urnComponents = components as URNComponents;
     29 
     30 		if (matches) {
     31 			const scheme = options.scheme || urnComponents.scheme || "urn";
     32 			const nid = matches[1].toLowerCase();
     33 			const nss = matches[2];
     34 			const urnScheme = `${scheme}:${options.nid || nid}`;
     35 			const schemeHandler = SCHEMES[urnScheme];
     36 
     37 			urnComponents.nid = nid;
     38 			urnComponents.nss = nss;
     39 			urnComponents.path = undefined;
     40 
     41 			if (schemeHandler) {
     42 				urnComponents = schemeHandler.parse(urnComponents, options) as URNComponents;
     43 			}
     44 		} else {
     45 			urnComponents.error = urnComponents.error || "URN can not be parsed.";
     46 		}
     47 
     48 		return urnComponents;
     49 	},
     50 
     51 	serialize : function (urnComponents:URNComponents, options:URNOptions):URIComponents {
     52 		const scheme = options.scheme || urnComponents.scheme || "urn";
     53 		const nid = urnComponents.nid;
     54 		const urnScheme = `${scheme}:${options.nid || nid}`;
     55 		const schemeHandler = SCHEMES[urnScheme];
     56 
     57 		if (schemeHandler) {
     58 			urnComponents = schemeHandler.serialize(urnComponents, options) as URNComponents;
     59 		}
     60 
     61 		const uriComponents = urnComponents as URIComponents;
     62 		const nss = urnComponents.nss;
     63 		uriComponents.path = `${nid || options.nid}:${nss}`;
     64 
     65 		return uriComponents;
     66 	},
     67 };
     68 
     69 export default handler;