StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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144 lines
4.0 KiB
144 lines
4.0 KiB
var isCustomProperty = require('../../utils/names').isCustomProperty;
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var TYPE = require('../../tokenizer').TYPE;
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var IDENTIFIER = TYPE.Identifier;
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var COLON = TYPE.Colon;
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var EXCLAMATIONMARK = TYPE.ExclamationMark;
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var SOLIDUS = TYPE.Solidus;
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var ASTERISK = TYPE.Asterisk;
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var DOLLARSIGN = TYPE.DollarSign;
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var HYPHENMINUS = TYPE.HyphenMinus;
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var SEMICOLON = TYPE.Semicolon;
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var PLUSSIGN = TYPE.PlusSign;
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var NUMBERSIGN = TYPE.NumberSign;
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function consumeValueRaw(startToken) {
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return this.Raw(startToken, EXCLAMATIONMARK, SEMICOLON, false, true);
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}
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function consumeCustomPropertyRaw(startToken) {
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return this.Raw(startToken, EXCLAMATIONMARK, SEMICOLON, false, false);
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}
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function consumeValue() {
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var startValueToken = this.scanner.currentToken;
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var value = this.Value();
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if (value.type !== 'Raw' &&
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this.scanner.eof === false &&
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this.scanner.tokenType !== SEMICOLON &&
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this.scanner.tokenType !== EXCLAMATIONMARK &&
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this.scanner.isBalanceEdge(startValueToken) === false) {
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this.scanner.error();
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}
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return value;
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}
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module.exports = {
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name: 'Declaration',
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structure: {
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important: [Boolean, String],
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property: String,
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value: ['Value', 'Raw']
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},
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parse: function() {
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var start = this.scanner.tokenStart;
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var startToken = this.scanner.currentToken;
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var property = readProperty.call(this);
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var customProperty = isCustomProperty(property);
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var parseValue = customProperty ? this.parseCustomProperty : this.parseValue;
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var consumeRaw = customProperty ? consumeCustomPropertyRaw : consumeValueRaw;
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var important = false;
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var value;
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this.scanner.skipSC();
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this.scanner.eat(COLON);
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if (!customProperty) {
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this.scanner.skipSC();
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}
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if (parseValue) {
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value = this.parseWithFallback(consumeValue, consumeRaw);
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} else {
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value = consumeRaw.call(this, this.scanner.currentToken);
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}
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if (this.scanner.tokenType === EXCLAMATIONMARK) {
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important = getImportant(this.scanner);
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this.scanner.skipSC();
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}
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// Do not include semicolon to range per spec
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// https://drafts.csswg.org/css-syntax/#declaration-diagram
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if (this.scanner.eof === false &&
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this.scanner.tokenType !== SEMICOLON &&
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this.scanner.isBalanceEdge(startToken) === false) {
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this.scanner.error();
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}
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return {
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type: 'Declaration',
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loc: this.getLocation(start, this.scanner.tokenStart),
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important: important,
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property: property,
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value: value
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};
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},
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generate: function(node) {
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this.chunk(node.property);
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this.chunk(':');
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this.node(node.value);
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if (node.important) {
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this.chunk(node.important === true ? '!important' : '!' + node.important);
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}
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},
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walkContext: 'declaration'
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};
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function readProperty() {
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var start = this.scanner.tokenStart;
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var prefix = 0;
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// hacks
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switch (this.scanner.tokenType) {
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case ASTERISK:
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case DOLLARSIGN:
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case PLUSSIGN:
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case NUMBERSIGN:
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prefix = 1;
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break;
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// TODO: not sure we should support this hack
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case SOLIDUS:
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prefix = this.scanner.lookupType(1) === SOLIDUS ? 2 : 1;
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break;
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}
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if (this.scanner.lookupType(prefix) === HYPHENMINUS) {
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prefix++;
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}
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if (prefix) {
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this.scanner.skip(prefix);
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}
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this.scanner.eat(IDENTIFIER);
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return this.scanner.substrToCursor(start);
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}
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// ! ws* important
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function getImportant(scanner) {
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scanner.eat(EXCLAMATIONMARK);
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scanner.skipSC();
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var important = scanner.consume(IDENTIFIER);
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// store original value in case it differ from `important`
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// for better original source restoring and hacks like `!ie` support
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return important === 'important' ? true : important;
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}
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