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https://github.com/zen-browser/pdf.js.git
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0ff5cd7eb5
- the parser is base on a class extending XMLParserBase - it handle xml namespaces: * each namespace is assocated with a builder * builder builds nodes belonging to the namespace * when a node is inserted in the parent namespace compatibility is checked (if required) - to avoid name collision between xml names and object properties, use Symbol.
47 lines
1.2 KiB
JavaScript
47 lines
1.2 KiB
JavaScript
/* Copyright 2021 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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function getInteger({ data, defaultValue, validate }) {
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if (!data) {
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return defaultValue;
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}
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data = data.trim();
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const n = parseInt(data, 10);
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if (!isNaN(n) && validate(n)) {
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return n;
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}
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return defaultValue;
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}
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function getKeyword({ data, defaultValue, validate }) {
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if (!data) {
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return defaultValue;
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}
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data = data.trim();
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if (validate(data)) {
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return data;
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}
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return defaultValue;
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}
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function getStringOption(data, options) {
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return getKeyword({
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data,
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defaultValue: options[0],
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validate: k => options.includes(k),
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});
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}
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export { getInteger, getKeyword, getStringOption };
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