@nativescript/core
Version:
A JavaScript library providing an easy to use api for interacting with iOS and Android platform APIs.
518 lines • 13.9 kB
JavaScript
// TODO: Delete `nativescript-core/xml/xml.js` from source control after
// https://github.com/NativeScript/nativescript-dev-webpack/issues/932
import { EasySAXParser } from '../js-libs/easysax';
export class ParserEventType {
}
ParserEventType.StartElement = 'StartElement';
ParserEventType.EndElement = 'EndElement';
ParserEventType.Text = 'Text';
ParserEventType.CDATA = 'CDATA';
ParserEventType.Comment = 'Comment';
export class ParserEvent {
constructor(eventType, position, prefix, namespace, elementName, attributes, data) {
this._eventType = eventType;
this._position = position;
this._prefix = prefix;
this._namespace = namespace;
this._elementName = elementName;
this._attributes = attributes;
this._data = data;
}
toString() {
return JSON.stringify({
eventType: this.eventType,
position: this.position,
prefix: this.prefix,
namespace: this.namespace,
elementName: this.elementName,
attributes: this.attributes,
data: this.data,
});
}
get eventType() {
return this._eventType;
}
get position() {
return this._position;
}
get prefix() {
return this._prefix;
}
get namespace() {
return this._namespace;
}
get elementName() {
return this._elementName;
}
get attributes() {
return this._attributes;
}
get data() {
return this._data;
}
}
let _ampCodes;
const _entitySearchRegEx = /&#(\d+);|&#x([0123456789abcdef]+);|&(\w+);/gi;
function _generateAmpMap() {
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,
};
const ampCodes = new Map();
for (const key in objCodes) {
if (objCodes.hasOwnProperty(key)) {
ampCodes.set(key, objCodes[key]);
}
}
return ampCodes;
}
// android-specific implementation, which pre-populates the map to get it saved into the heap blob
if (global.__snapshot) {
_ampCodes = _generateAmpMap();
}
function _HandleAmpEntities(found, decimalValue, hexValue, wordValue) {
if (wordValue) {
if (!_ampCodes) {
_ampCodes = _generateAmpMap();
}
const res = _ampCodes.get(wordValue);
if (res) {
return String.fromCodePoint(res);
}
// Invalid word; so we just return it
return found;
}
if (decimalValue) {
return String.fromCodePoint(parseInt(decimalValue, 10));
}
return String.fromCodePoint(parseInt(hexValue, 16));
}
export class XmlParser {
constructor(onEvent, onError, processNamespaces) {
this._processNamespaces = processNamespaces;
this._parser = new EasySAXParser();
const that = this;
this._parser.on('startNode', function (elem, attr, uq, tagend, str, pos) {
let attributes = attr();
if (attributes === true) {
//HACK: For some reason easysax returns the true literal when an element has no attributes.
attributes = undefined;
}
if (attributes) {
for (const key in attributes) {
if (attributes.hasOwnProperty(key)) {
// Convert entities such as > to >
attributes[key] = XmlParser._dereferenceEntities(attributes[key]);
}
}
}
let prefix = undefined;
let namespace = undefined;
let name = elem;
if (that._processNamespaces) {
const stackEntry = XmlParser._getNamespacesStackEntry(attributes);
that._namespaceStack.push(stackEntry);
const resolved = that._resolveNamespace(name);
prefix = resolved.prefix;
namespace = resolved.namespace;
name = resolved.name;
}
onEvent(new ParserEvent(ParserEventType.StartElement, pos(), prefix, namespace, name, attributes, undefined));
});
this._parser.on('textNode', function (text, uq, pos) {
const data = uq(XmlParser._dereferenceEntities(text)); // Decode entity references such as < and >
onEvent(new ParserEvent(ParserEventType.Text, pos(), undefined, undefined, undefined, undefined, data));
});
this._parser.on('endNode', function (elem, uq, tagstart, str, pos) {
let prefix = undefined;
let namespace = undefined;
let name = elem;
if (that._processNamespaces) {
const resolved = that._resolveNamespace(name);
prefix = resolved.prefix;
namespace = resolved.namespace;
name = resolved.name;
}
onEvent(new ParserEvent(ParserEventType.EndElement, pos(), prefix, namespace, name, undefined, undefined));
if (that._processNamespaces) {
that._namespaceStack.pop();
}
});
this._parser.on('cdata', function (data, res, pos) {
onEvent(new ParserEvent(ParserEventType.CDATA, pos(), undefined, undefined, undefined, undefined, data));
});
this._parser.on('comment', function (text, uq, pos) {
onEvent(new ParserEvent(ParserEventType.Comment, pos(), undefined, undefined, undefined, undefined, text));
});
if (onError) {
this._parser.on('error', function (msg, pos) {
onError(new Error(msg), pos());
});
}
}
get angularSyntax() {
return this._parser.angularSyntax;
}
set angularSyntax(value) {
this._parser.angularSyntax = value;
}
parse(xmlString) {
if (this._processNamespaces) {
this._namespaceStack = [];
}
this._parser.parse(xmlString);
}
static _getNamespacesStackEntry(attributes) {
const stackEntry = {};
if (!attributes) {
return stackEntry;
}
let attributeName;
let namespacePrefix;
for (const key in attributes) {
if (!attributes.hasOwnProperty(key)) {
continue;
}
attributeName = key;
if (attributeName.indexOf('xmlns') !== 0) {
// This is a normal attribute, so go on.
continue;
}
namespacePrefix = '';
if (attributeName.indexOf(':') !== -1) {
namespacePrefix = attributeName.split(':')[1];
}
stackEntry[namespacePrefix] = attributes[key];
}
return stackEntry;
}
_resolveNamespace(fullName) {
const result = {
prefix: undefined,
namespace: undefined,
name: undefined,
};
result.prefix = '';
if (fullName.indexOf(':') !== -1) {
const split = fullName.split(':');
result.prefix = split[0];
result.name = split[1];
}
else {
result.name = fullName;
}
let stackEntry;
for (let i = this._namespaceStack.length - 1; i >= 0; i--) {
stackEntry = this._namespaceStack[i];
for (const key in stackEntry) {
if (!stackEntry.hasOwnProperty(key)) {
continue;
}
if (result.prefix === key) {
result.namespace = stackEntry[key];
return result;
}
}
}
return result;
}
static _dereferenceEntities(s) {
s = String(s);
if (s.length > 3 && s.indexOf('&') !== -1) {
s = s.replace(_entitySearchRegEx, _HandleAmpEntities);
}
return s;
}
}
//# sourceMappingURL=index.js.map