xpath-ts2
Version:
DOM 3 and 4 XPath 1.0 implementation for browser and Node.js environment with support for typescript 5.
52 lines • 2.17 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.XPathExpressionImpl = void 0;
const function_resolver_1 = require("./function-resolver");
const namespace_resolver_1 = require("./namespace-resolver");
const types_1 = require("./utils/types");
const variable_resolver_1 = require("./variable-resolver");
const xpath_parser_1 = require("./xpath-parser");
const xpath_result_impl_1 = require("./xpath-result-impl");
const xpath_types_1 = require("./xpath-types");
class XPathExpressionImpl {
static getOwnerDocument(n) {
return (0, types_1.isDocument)(n) ? n : n.ownerDocument;
}
static detectHtmlDom(n) {
if (!n) {
return false;
}
const doc = XPathExpressionImpl.getOwnerDocument(n);
try {
if (doc != null) {
return doc.implementation.hasFeature('HTML', '2.0');
}
else {
return true;
}
}
catch (e) {
return true;
}
}
xpath;
context;
constructor(e, { vr = new variable_resolver_1.VariableResolverImpl(), nr = new namespace_resolver_1.NamespaceResolverImpl(), fr = new function_resolver_1.FunctionResolverImpl(), p = new xpath_parser_1.XPathParser() }) {
this.xpath = p.parse(e);
this.context = new xpath_types_1.XPathContext(vr, nr, fr);
}
evaluate(n, t, _res) {
// Intentionaly make the node as defined.
// If no node is provided then the library will fail in case of context aware expression.
n = n;
this.context.expressionContextNode = n;
// backward compatibility - no reliable way to detect whether the DOM is HTML, but
// this library has been using this method up until now, so we will continue to use it
// ONLY when using an XPathExpression
this.context.caseInsensitive = XPathExpressionImpl.detectHtmlDom(n);
const result = this.xpath.evaluate(this.context);
return new xpath_result_impl_1.XPathResultImpl(result, t);
}
}
exports.XPathExpressionImpl = XPathExpressionImpl;
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