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80 lines
1.9 KiB
JavaScript
80 lines
1.9 KiB
JavaScript
'use strict';
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const {
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NODE_END,
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ATTRIBUTE_NODE,
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CDATA_SECTION_NODE,
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COMMENT_NODE,
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DOCUMENT_TYPE_NODE,
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ELEMENT_NODE,
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TEXT_NODE
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} = require('./constants.js');
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const {END, NEXT, VALUE} = require('./symbols.js');
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const {getEnd} = require('./utils.js');
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const loopSegment = ({[NEXT]: next, [END]: end}, json) => {
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while (next !== end) {
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switch (next.nodeType) {
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case ATTRIBUTE_NODE:
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attrAsJSON(next, json);
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break;
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case TEXT_NODE:
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case COMMENT_NODE:
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case CDATA_SECTION_NODE:
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characterDataAsJSON(next, json);
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break;
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case ELEMENT_NODE:
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elementAsJSON(next, json);
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next = getEnd(next);
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break;
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case DOCUMENT_TYPE_NODE:
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documentTypeAsJSON(next, json);
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break;
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}
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next = next[NEXT];
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}
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const last = json.length - 1;
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const value = json[last];
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if (typeof value === 'number' && value < 0)
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json[last] += NODE_END;
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else
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json.push(NODE_END);
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};
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const attrAsJSON = (attr, json) => {
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json.push(ATTRIBUTE_NODE, attr.name);
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const value = attr[VALUE].trim();
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if (value)
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json.push(value);
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};
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exports.attrAsJSON = attrAsJSON;
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const characterDataAsJSON = (node, json) => {
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const value = node[VALUE];
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if (value.trim())
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json.push(node.nodeType, value);
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};
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exports.characterDataAsJSON = characterDataAsJSON;
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const nonElementAsJSON = (node, json) => {
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json.push(node.nodeType);
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loopSegment(node, json);
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};
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exports.nonElementAsJSON = nonElementAsJSON;
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const documentTypeAsJSON = ({name, publicId, systemId}, json) => {
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json.push(DOCUMENT_TYPE_NODE, name);
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if (publicId)
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json.push(publicId);
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if (systemId)
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json.push(systemId);
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};
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exports.documentTypeAsJSON = documentTypeAsJSON;
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const elementAsJSON = (element, json) => {
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json.push(ELEMENT_NODE, element.localName);
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loopSegment(element, json);
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};
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exports.elementAsJSON = elementAsJSON;
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