mirror of
https://github.com/NativeScript/NativeScript.git
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289 lines
12 KiB
TypeScript
289 lines
12 KiB
TypeScript
// TODO: Delete `tns-core-modules/xml/xml.js` from source control after
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// https://github.com/NativeScript/nativescript-dev-webpack/issues/932
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import * as definition from ".";
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import * as easysax from "../js-libs/easysax";
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export class ParserEventType implements definition.ParserEventType {
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static StartElement = "StartElement";
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static EndElement = "EndElement";
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static Text = "Text";
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static CDATA = "CDATA";
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static Comment = "Comment";
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}
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export class ParserEvent implements definition.ParserEvent {
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private _eventType: string;
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private _position: definition.Position;
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private _prefix: string;
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private _namespace: string;
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private _elementName: string;
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private _attributes: Object;
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private _data: string;
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constructor(eventType: string, position: definition.Position, prefix?: string, namespace?: string, elementName?: string, attributes?: Object, data?: string) {
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this._eventType = eventType;
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this._position = position;
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this._prefix = prefix;
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this._namespace = namespace;
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this._elementName = elementName;
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this._attributes = attributes;
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this._data = data;
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}
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public toString(): string {
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return JSON.stringify({
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eventType: this.eventType,
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position: this.position,
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prefix: this.prefix,
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namespace: this.namespace,
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elementName: this.elementName,
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attributes: this.attributes,
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data: this.data
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});
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}
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public get eventType(): string {
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return this._eventType;
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}
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public get position(): definition.Position {
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return this._position;
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}
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public get prefix(): string {
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return this._prefix;
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}
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public get namespace(): string {
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return this._namespace;
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}
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public get elementName(): string {
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return this._elementName;
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}
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public get attributes(): Object {
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return this._attributes;
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}
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public get data(): string {
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return this._data;
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}
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}
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let _ampCodes;
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const _entitySearchRegEx = /&#(\d+);|&#x([0123456789abcdef]+);|&(\w+);/ig;
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function _generateAmpMap(): any {
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const objCodes = { Tab: 9, NewLine: 10, excl: 33, quot: 34, QUOT: 34, num: 35, dollar: 36, percent: 37, amp: 38, AMP: 38, apos: 39, lpar: 40, rpar: 41, ast: 42, midast: 42, plus: 43, comma: 44, period: 46, sol: 47, colon: 58, semi: 59, lt: 60, LT: 60, equals: 61, gt: 62, GT: 62, quest: 63, commat: 64, lsqb: 91, lbrack: 91, bsol: 92, rsqb: 92, rbrack: 92, Hat: 94, lowbar: 95, grave: 96, DiacriticalGrave: 96, lcub: 123, lbrace: 123, verbar: 124, vert: 124, VerticalLine: 124, rcub: 125, rbrace: 125, nbsp: 160, iexcl: 161, cent: 162, pound: 163, curren: 164, yen: 165, brvbar: 166, brkbar: 166, sect: 167, uml: 168, copy: 169, ordf: 170, laquo: 171, not: 172, shy: 173, reg: 174, macr: 175, hibar: 175, deg: 176, plusmn: 177, sup2: 178, sup3: 179, acute: 180, micro: 181, para: 182, middot: 183, cedil: 184, sup1: 185, ordm: 186, raquo: 187, frac14: 188, frac12: 189, frac34: 190, iquest: 191, Agrave: 192, Aacute: 193, Acirc: 194, Atilde: 195, Auml: 196, Aring: 197, AElig: 198, Ccedil: 199, Egrave: 200, Eacute: 201, Ecirc: 202, Euml: 203, Igrave: 204, Iacute: 205, Icirc: 206, Iuml: 207, ETH: 208, Dstrok: 208, Ntilde: 209, Ograve: 210, Oacute: 211, Ocirc: 212, Otilde: 213, Ouml: 214, times: 215, Oslash: 216, Ugrave: 217, Uacute: 218, Ucirc: 219, Uuml: 220, Yacute: 221, THORN: 222, szlig: 223, agrave: 224, aacute: 225, acirc: 226, atilde: 227, auml: 228, aring: 229, aelig: 230, ccedil: 231, egrave: 232, eacute: 233, ecirc: 234, euml: 235, igrave: 236, iacute: 237, icirc: 238, iuml: 239, eth: 240, ntilde: 241, ograve: 242, oacute: 243, ocirc: 244, otilde: 245, ouml: 246, divide: 247, oslash: 248, ugrave: 249, uacute: 250, ucirc: 251, uuml: 252, yacute: 253, thorn: 254, yuml: 255, fnof: 402, imped: 437, gacute: 501, jmath: 567, circ: 710, caron: 711, Hacek: 711, breve: 728, Breve: 728, dot: 729, DiacriticalDot: 729, ring: 730, ogon: 731, tilde: 732, DiacriticalTilde: 732, dblac: 733, DiacriticalDoubleAcute: 733, DownBreve: 785, UnderBar: 818, Alpha: 913, Beta: 914, Gamma: 915, Delta: 916, Epsilon: 917, Zeta: 918, Eta: 919, Theta: 920, Iota: 921, Kappa: 922, Lambda: 923, Mu: 924, Nu: 925, Xi: 926, Omicron: 927, Pi: 928, Rho: 929 /* 930 is not real */, Sigma: 931, Tau: 932, Upsilon: 933, Phi: 934, Chi: 935, Psi: 936, Omega: 937, alpha: 945, beta: 946, gamma: 947, delta: 948, epsilon: 949, epsiv: 949, varepsilon: 949, zeta: 950, eta: 951, theta: 952, iota: 953, kappa: 954, lambda: 955, mu: 956, nu: 957, xi: 958, omicron: 959, pi: 960, rho: 961, sigmaf: 962, sigmav: 962, varsigma: 962, sigma: 963, tau: 964, upsilon: 965, phi: 966, chi: 967, psi: 968, omega: 969, thetav: 977, vartheta: 977, thetasym: 977, Upsi: 978, upsih: 978, straightphi: 981, piv: 982, varpi: 982, Gammad: 988, gammad: 989, digamma: 989, kappav: 1008, varkappa: 1008, rhov: 1009, varrho: 1009, epsi: 1013, straightepsilon: 1013, bepsi: 1014, backepsilon: 1014, /* Skipped Codes 1015 - 1119 */ euro: 8364, trade: 8482, TRADE: 8482, forall: 8704, part: 8706, larr: 8592, rarr: 8593, hyphen: 8208, dash: 8208, ndash: 8211, mdash: 8212, horbar: 8213, Vert: 8214, Verbar: 8214, lsquo: 8216, OpenCurlyQuote: 8216, rsquo: 8217, rsquor: 8217, CloseCurlyQuote: 8217, lsquor: 8218, sbquo: 8218, ldquo: 8220, OpenCurlyDoubleQuote: 8220, rdquo: 8221, rdquor: 8221, CloseCurlyDoubleQuote: 8221, ldquor: 8222, bdquo: 8222, dagger: 8224, Dagger: 8225, ddagger: 8225, bull: 8226, bullet: 8226, nldr: 8229, hellip: 8230, mldr: 8230, hybull: 8259, tdot: 8411, TripleDot: 8411, DotDot: 8412, star: 9734, phone: 9742, spades: 9824, clubs: 9827, hearts: 9829, diams: 9830, female: 9792, male: 9794, check: 10003, checkmark: 10003, cross: 10007, VerticalSeparator: 10072, EmptySmallSquare: 9723, FilledSmallSquare: 9724, starf: 9733, bigstar: 9733, square: 9633, squ: 9633, Square: 9633 };
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const ampCodes = new Map();
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for (let key in objCodes) {
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if (objCodes.hasOwnProperty(key)) {
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ampCodes.set(key, objCodes[key]);
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}
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}
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return ampCodes;
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}
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// android-specific implementation, which pre-populates the map to get it saved into the heap blob
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if ((<any>global).__snapshot) {
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_ampCodes = _generateAmpMap();
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}
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function _HandleAmpEntities(found: string, decimalValue: string, hexValue: string, wordValue: string): string {
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if (wordValue) {
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if (!_ampCodes) {
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_ampCodes = _generateAmpMap();
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}
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const res = _ampCodes.get(wordValue);
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if (res) {
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return String.fromCodePoint(res);
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}
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// Invalid word; so we just return it
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return found;
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}
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if (decimalValue) {
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return String.fromCodePoint(parseInt(decimalValue, 10));
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}
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return String.fromCodePoint(parseInt(hexValue, 16));
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}
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export class XmlParser implements definition.XmlParser {
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//TODO: Add option to configure whether the parser should report ignorable whitespace, i.e. document formatting whitespace.
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private _parser: easysax.EasySAXParser;
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private _processNamespaces: boolean;
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private _namespaceStack: Array<any>;
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constructor(onEvent: (event: definition.ParserEvent) => void, onError?: (error: Error, position: definition.Position) => void, processNamespaces?: boolean) {
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this._processNamespaces = processNamespaces;
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this._parser = new easysax.EasySAXParser();
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const that = this;
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this._parser.on("startNode", function (elem, attr, uq, tagend, str, pos) {
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let attributes = attr();
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if (attributes === true) {//HACK: For some reason easysax returns the true literal when an element has no attributes.
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attributes = undefined;
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}
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if (attributes) {
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for (let key in attributes) {
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if (attributes.hasOwnProperty(key)) {
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// Convert entities such as > to >
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attributes[key] = XmlParser._dereferenceEntities(attributes[key]);
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}
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}
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}
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let prefix = undefined;
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let namespace = undefined;
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let name = elem;
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if (that._processNamespaces) {
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const stackEntry = XmlParser._getNamespacesStackEntry(attributes);
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that._namespaceStack.push(stackEntry);
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const resolved = that._resolveNamespace(name);
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prefix = resolved.prefix;
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namespace = resolved.namespace;
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name = resolved.name;
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}
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onEvent(new ParserEvent(ParserEventType.StartElement, pos(), prefix, namespace, name, attributes, undefined));
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});
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this._parser.on("textNode", function (text, uq, pos) {
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const data = uq(XmlParser._dereferenceEntities(text)); // Decode entity references such as < and >
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onEvent(new ParserEvent(ParserEventType.Text, pos(), undefined, undefined, undefined, undefined, data));
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});
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this._parser.on("endNode", function (elem, uq, tagstart, str, pos) {
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let prefix = undefined;
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let namespace = undefined;
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let name = elem;
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if (that._processNamespaces) {
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const resolved = that._resolveNamespace(name);
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prefix = resolved.prefix;
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namespace = resolved.namespace;
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name = resolved.name;
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}
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onEvent(new ParserEvent(ParserEventType.EndElement, pos(), prefix, namespace, name, undefined, undefined));
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if (that._processNamespaces) {
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that._namespaceStack.pop();
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}
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});
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this._parser.on("cdata", function (data, res, pos) {
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onEvent(new ParserEvent(ParserEventType.CDATA, pos(), undefined, undefined, undefined, undefined, data));
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});
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this._parser.on("comment", function (text, uq, pos) {
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onEvent(new ParserEvent(ParserEventType.Comment, pos(), undefined, undefined, undefined, undefined, text));
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});
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if (onError) {
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this._parser.on("error", function (msg, pos) {
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onError(new Error(msg), pos());
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});
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}
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}
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public get angularSyntax(): boolean {
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return this._parser.angularSyntax;
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}
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public set angularSyntax(value: boolean) {
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this._parser.angularSyntax = value;
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}
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public parse(xmlString: string): void {
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if (this._processNamespaces) {
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this._namespaceStack = [];
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}
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this._parser.parse(xmlString);
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}
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private static _getNamespacesStackEntry(attributes: any): any {
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const stackEntry = {};
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if (!attributes) {
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return stackEntry;
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}
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let attributeName;
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let namespacePrefix;
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for (let key in attributes) {
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if (!attributes.hasOwnProperty(key)) {
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continue;
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}
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attributeName = <string>key;
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if (attributeName.indexOf("xmlns") !== 0) {
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// This is a normal attribute, so go on.
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continue;
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}
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namespacePrefix = "";
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if (attributeName.indexOf(":") !== -1) {
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namespacePrefix = attributeName.split(":")[1];
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}
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stackEntry[namespacePrefix] = attributes[key];
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}
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return stackEntry;
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}
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private _resolveNamespace(fullName: string): { prefix: string; namespace: string; name: string; } {
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const result: { prefix: string; namespace: string; name: string; } = { prefix: undefined, namespace: undefined, name: undefined };
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result.prefix = "";
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if (fullName.indexOf(":") !== -1) {
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const split = fullName.split(":");
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result.prefix = split[0];
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result.name = split[1];
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}
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else {
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result.name = fullName;
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}
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let stackEntry;
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for (let i = this._namespaceStack.length - 1; i >= 0; i--) {
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stackEntry = this._namespaceStack[i];
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for (let key in stackEntry) {
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if (!stackEntry.hasOwnProperty(key)) {
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continue;
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}
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if (result.prefix === key) {
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result.namespace = stackEntry[key];
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return result;
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}
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}
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}
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return result;
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}
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private static _dereferenceEntities(s: string): string {
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s = String(s);
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if (s.length > 3 && s.indexOf("&") !== -1) {
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s = s.replace(_entitySearchRegEx, _HandleAmpEntities);
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}
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return s;
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}
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}
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