pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
83 lines (82 loc) • 2.42 kB
JavaScript
/**
* @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright 2022 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* JavaScript code in this page
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.DatasetReader = void 0;
var _util = require("../shared/util.js");
var _core_utils = require("./core_utils.js");
var _xml_parser = require("./xml_parser.js");
function decodeString(str) {
try {
return (0, _util.stringToUTF8String)(str);
} catch (ex) {
(0, _util.warn)(`UTF-8 decoding failed: "${ex}".`);
return str;
}
}
class DatasetXMLParser extends _xml_parser.SimpleXMLParser {
constructor(options) {
super(options);
this.node = null;
}
onEndElement(name) {
const node = super.onEndElement(name);
if (node && name === "xfa:datasets") {
this.node = node;
throw new Error("Aborting DatasetXMLParser.");
}
}
}
class DatasetReader {
constructor(data) {
if (data.datasets) {
this.node = new _xml_parser.SimpleXMLParser({
hasAttributes: true
}).parseFromString(data.datasets).documentElement;
} else {
const parser = new DatasetXMLParser({
hasAttributes: true
});
try {
parser.parseFromString(data["xdp:xdp"]);
} catch (_) {}
this.node = parser.node;
}
}
getValue(path) {
if (!this.node || !path) {
return "";
}
const node = this.node.searchNode((0, _core_utils.parseXFAPath)(path), 0);
if (!node) {
return "";
}
const first = node.firstChild;
if (first && first.nodeName === "value") {
return node.children.map(child => decodeString(child.textContent));
}
return decodeString(node.textContent);
}
}
exports.DatasetReader = DatasetReader;