mirror of
https://github.com/philomena-dev/philomena.git
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877 lines
23 KiB
JavaScript
877 lines
23 KiB
JavaScript
/**
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* booru.match_query: A port and modification of the search_parser library for
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* performing client-side filtering.
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*/
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const tokenList = [
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['fuzz', /^~(?:\d+(\.\d+)?|\.\d+)/],
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['boost', /^\^[-+]?\d+(\.\d+)?/],
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['quoted_lit', /^\s*"(?:[^"]|\\")+"/],
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['lparen', /^\s*\(\s*/],
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['rparen', /^\s*\)\s*/],
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['and_op', /^\s*(?:&&|AND)\s+/],
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['and_op', /^\s*,\s*/],
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['or_op', /^\s*(?:\|\||OR)\s+/],
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['not_op', /^\s*NOT(?:\s+|(?=\())/],
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['not_op', /^\s*[!-]\s*/],
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['space', /^\s+/],
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['word', /^(?:\\[\s,()^~]|[^\s,()^~])+/],
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['word', /^(?:\\[\s,()]|[^\s,()])+/]
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],
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numberFields = ['id', 'width', 'height', 'aspect_ratio',
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'comment_count', 'score', 'upvotes', 'downvotes',
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'faves', 'tag_count'],
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dateFields = ['created_at'],
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literalFields = ['tags', 'orig_sha512_hash', 'sha512_hash',
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'score', 'uploader', 'source_url', 'description'],
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termSpaceToImageField = {
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tags: 'data-image-tag-aliases',
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score: 'data-score',
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upvotes: 'data-upvotes',
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downvotes: 'data-downvotes',
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uploader: 'data-uploader',
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// Yeah, I don't think this is reasonably supportable.
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// faved_by: 'data-faved-by',
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id: 'data-image-id',
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width: 'data-width',
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height: 'data-height',
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/* eslint-disable camelcase */
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aspect_ratio: 'data-aspect-ratio',
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comment_count: 'data-comment-count',
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tag_count: 'data-tag-count',
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source_url: 'data-source-url',
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faves: 'data-faves',
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sha512_hash: 'data-sha512',
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orig_sha512_hash: 'data-orig-sha512',
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created_at: 'data-created-at'
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/* eslint-enable camelcase */
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};
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function SearchTerm(termStr) {
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this.term = termStr.trim();
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this.parsed = false;
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}
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SearchTerm.prototype.append = function(substr) {
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this.term += substr;
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this.parsed = false;
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};
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SearchTerm.prototype.parseRangeField = function(field) {
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if (numberFields.indexOf(field) !== -1) {
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return [field, 'eq', 'number'];
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}
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if (dateFields.indexOf(field) !== -1) {
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return [field, 'eq', 'date'];
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}
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const qual = /^(\w+)\.([lg]te?|eq)$/.exec(field);
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if (qual) {
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if (numberFields.indexOf(qual[1]) !== -1) {
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return [qual[1], qual[2], 'number'];
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}
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if (dateFields.indexOf(qual[1]) !== -1) {
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return [qual[1], qual[2], 'date'];
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}
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}
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return null;
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};
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SearchTerm.prototype.parseRelativeDate = function(dateVal, qual) {
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const match = /(\d+) (second|minute|hour|day|week|month|year)s? ago/.exec(dateVal);
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const bounds = {
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second: 1000,
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minute: 60000,
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hour: 3600000,
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day: 86400000,
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week: 604800000,
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month: 2592000000,
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year: 31536000000
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};
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if (match) {
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const amount = parseInt(match[1], 10);
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const scale = bounds[match[2]];
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const now = new Date().getTime();
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const bottomDate = new Date(now - (amount * scale));
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const topDate = new Date(now - ((amount - 1) * scale));
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switch (qual) {
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case 'lte':
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return [bottomDate, 'lt'];
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case 'gte':
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return [bottomDate, 'gte'];
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case 'lt':
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return [bottomDate, 'lt'];
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case 'gt':
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return [bottomDate, 'gte'];
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default:
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return [[bottomDate, topDate], 'eq'];
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}
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}
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else {
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throw new Error(`Cannot parse date string: ${dateVal}`);
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}
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};
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SearchTerm.prototype.parseAbsoluteDate = function(dateVal, qual) {
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const parseRes = [
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/^(\d{4})/,
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/^-(\d{2})/,
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/^-(\d{2})/,
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/^(?:\s+|T|t)(\d{2})/,
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/^:(\d{2})/,
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/^:(\d{2})/
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],
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timeZoneOffset = [0, 0],
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timeData = [0, 0, 1, 0, 0, 0],
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origDateVal = dateVal;
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let topDate = null,
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i,
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match,
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bottomDate = null,
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localDateVal = origDateVal;
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match = /([+-])(\d{2}):(\d{2})$/.exec(localDateVal);
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if (match) {
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timeZoneOffset[0] = parseInt(match[2], 10);
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timeZoneOffset[1] = parseInt(match[3], 10);
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if (match[1] === '-') {
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timeZoneOffset[0] *= -1;
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timeZoneOffset[1] *= -1;
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}
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localDateVal = localDateVal.substr(0, localDateVal.length - 6);
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}
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else {
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localDateVal = localDateVal.replace(/[Zz]$/, '');
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}
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for (i = 0; i < parseRes.length; i += 1) {
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if (localDateVal.length === 0) {
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break;
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}
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match = parseRes[i].exec(localDateVal);
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if (match) {
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if (i === 1) {
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timeData[i] = parseInt(match[1], 10) - 1;
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}
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else {
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timeData[i] = parseInt(match[1], 10);
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}
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localDateVal = localDateVal.substr(
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match[0].length, localDateVal.length - match[0].length
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);
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}
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else {
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throw new Error(`Cannot parse date string: ${origDateVal}`);
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}
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}
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if (localDateVal.length > 0) {
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throw new Error(`Cannot parse date string: ${origDateVal}`);
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}
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// Apply the user-specified time zone offset. The JS Date constructor
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// is very flexible here.
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timeData[3] -= timeZoneOffset[0];
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timeData[4] -= timeZoneOffset[1];
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switch (qual) {
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case 'lte':
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timeData[i - 1] += 1;
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return [Date.UTC.apply(Date, timeData), 'lt'];
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case 'gte':
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return [Date.UTC.apply(Date, timeData), 'gte'];
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case 'lt':
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return [Date.UTC.apply(Date, timeData), 'lt'];
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case 'gt':
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timeData[i - 1] += 1;
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return [Date.UTC.apply(Date, timeData), 'gte'];
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default:
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bottomDate = Date.UTC.apply(Date, timeData);
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timeData[i - 1] += 1;
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topDate = Date.UTC.apply(Date, timeData);
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return [[bottomDate, topDate], 'eq'];
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}
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};
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SearchTerm.prototype.parseDate = function(dateVal, qual) {
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try {
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return this.parseAbsoluteDate(dateVal, qual);
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}
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catch (_) {
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return this.parseRelativeDate(dateVal, qual);
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}
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};
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SearchTerm.prototype.parse = function() {
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let rangeParsing,
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candidateTermSpace,
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termCandidate;
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this.wildcardable = !this.fuzz && !/^"([^"]|\\")+"$/.test(this.term);
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if (!this.wildcardable && !this.fuzz) {
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this.term = this.term.substr(1, this.term.length - 2);
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}
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this.term = this._normalizeTerm();
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// N.B.: For the purposes of this parser, boosting effects are ignored.
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// Default.
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this.termSpace = 'tags';
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this.termType = 'literal';
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const matchArr = this.term.split(':');
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if (matchArr.length > 1) {
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candidateTermSpace = matchArr[0];
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termCandidate = matchArr.slice(1).join(':');
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rangeParsing = this.parseRangeField(candidateTermSpace);
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if (rangeParsing) {
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this.termSpace = rangeParsing[0];
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this.termType = rangeParsing[2];
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if (this.termType === 'date') {
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rangeParsing = this.parseDate(termCandidate, rangeParsing[1]);
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this.term = rangeParsing[0];
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this.compare = rangeParsing[1];
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}
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else {
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this.term = parseFloat(termCandidate);
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this.compare = rangeParsing[1];
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}
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this.wildcardable = false;
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}
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else if (literalFields.indexOf(candidateTermSpace) !== -1) {
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this.termType = 'literal';
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this.term = termCandidate;
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this.termSpace = candidateTermSpace;
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}
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else if (candidateTermSpace === 'my') {
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this.termType = 'my';
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this.termSpace = termCandidate;
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}
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}
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if (this.wildcardable) {
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// Transforms wildcard match into regular expression.
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// A custom NFA with caching may be more sophisticated but not
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// likely to be faster.
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this.term = new RegExp(
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`^${
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this.term.replace(/([.+^$[\]\\(){}|-])/g, '\\$1')
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.replace(/([^\\]|[^\\](?:\\\\)+)\*/g, '$1.*')
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.replace(/^(?:\\\\)*\*/g, '.*')
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.replace(/([^\\]|[^\\](?:\\\\)+)\?/g, '$1.?')
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.replace(/^(?:\\\\)*\?/g, '.?')
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}$`, 'i'
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);
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}
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// Update parse status flag to indicate the new properties are ready.
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this.parsed = true;
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};
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SearchTerm.prototype._normalizeTerm = function() {
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if (!this.wildcardable) {
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return this.term.replace('"', '"');
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}
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return this.term.replace(/\\([^*?])/g, '$1');
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};
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SearchTerm.prototype.fuzzyMatch = function(targetStr) {
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let targetDistance,
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i,
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j,
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// Work vectors, representing the last three populated
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// rows of the dynamic programming matrix of the iterative
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// optimal string alignment calculation.
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v0 = [],
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v1 = [],
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v2 = [],
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temp;
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if (this.fuzz < 1.0) {
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targetDistance = targetStr.length * (1.0 - this.fuzz);
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}
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else {
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targetDistance = this.fuzz;
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}
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const targetStrLower = targetStr.toLowerCase();
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for (i = 0; i <= targetStrLower.length; i += 1) {
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v1.push(i);
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}
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for (i = 0; i < this.term.length; i += 1) {
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v2[0] = i;
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for (j = 0; j < targetStrLower.length; j += 1) {
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const cost = this.term[i] === targetStrLower[j] ? 0 : 1;
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v2[j + 1] = Math.min(
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// Deletion.
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v1[j + 1] + 1,
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// Insertion.
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v2[j] + 1,
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// Substitution or No Change.
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v1[j] + cost
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);
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if (i > 1 && j > 1 && this.term[i] === targetStrLower[j - 1] &&
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targetStrLower[i - 1] === targetStrLower[j]) {
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v2[j + 1] = Math.min(v2[j], v0[j - 1] + cost);
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}
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}
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// Rotate dem vec pointers bra.
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temp = v0;
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v0 = v1;
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v1 = v2;
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v2 = temp;
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}
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return v1[targetStrLower.length] <= targetDistance;
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};
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SearchTerm.prototype.exactMatch = function(targetStr) {
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return this.term.toLowerCase() === targetStr.toLowerCase();
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};
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SearchTerm.prototype.wildcardMatch = function(targetStr) {
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return this.term.test(targetStr);
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};
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SearchTerm.prototype.interactionMatch = function(imageID, type, interaction, interactions) {
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let ret = false;
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interactions.forEach(v => {
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if (v.image_id === imageID && v.interaction_type === type && (interaction === null || v.value === interaction)) {
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ret = true;
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}
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});
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return ret;
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};
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SearchTerm.prototype.match = function(target) {
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// eslint-disable-next-line @typescript-eslint/no-this-alias,consistent-this
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const ohffs = this;
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let ret = false,
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compFunc,
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numbuh,
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date;
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if (!this.parsed) {
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this.parse();
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}
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if (this.termType === 'literal') {
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// Literal matching.
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if (this.fuzz) {
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compFunc = this.fuzzyMatch;
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}
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else if (this.wildcardable) {
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compFunc = this.wildcardMatch;
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}
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else {
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compFunc = this.exactMatch;
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}
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if (this.termSpace === 'tags') {
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target.getAttribute('data-image-tag-aliases').split(', ').every(
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str => {
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if (compFunc.call(ohffs, str)) {
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ret = true;
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return false;
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}
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return true;
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}
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);
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}
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else {
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ret = compFunc.call(
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this, target.getAttribute(termSpaceToImageField[this.termSpace])
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);
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}
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}
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else if (this.termType === 'my' && window.booru.interactions.length > 0) {
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// Should work with most my:conditions except watched.
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switch (this.termSpace) {
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case 'faves':
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ret = this.interactionMatch(Number(target.getAttribute('data-image-id')), 'faved', null, window.booru.interactions);
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break;
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case 'upvotes':
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ret = this.interactionMatch(Number(target.getAttribute('data-image-id')), 'voted', 'up', window.booru.interactions);
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break;
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case 'downvotes':
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ret = this.interactionMatch(Number(target.getAttribute('data-image-id')), 'voted', 'down', window.booru.interactions);
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break;
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default:
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ret = false; // Other my: interactions aren't supported, return false to prevent them from triggering spoiler.
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break;
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}
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}
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else if (this.termType === 'date') {
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// Date matching.
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date = new Date(
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target.getAttribute(termSpaceToImageField[this.termSpace])
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).getTime();
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switch (this.compare) {
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// The open-left, closed-right date range specified by the
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// date/time format limits the types of comparisons that are
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// done compared to numeric ranges.
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case 'lt':
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ret = this.term > date;
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break;
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case 'gte':
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ret = this.term <= date;
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break;
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default:
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ret = this.term[0] <= date && this.term[1] > date;
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}
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}
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else {
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// Range matching.
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numbuh = parseFloat(
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target.getAttribute(termSpaceToImageField[this.termSpace])
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);
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if (isNaN(this.term)) {
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ret = false;
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}
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else if (this.fuzz) {
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ret = this.term <= numbuh + this.fuzz &&
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this.term + this.fuzz >= numbuh;
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}
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else {
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switch (this.compare) {
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case 'lt':
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ret = this.term > numbuh;
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break;
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case 'gt':
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ret = this.term < numbuh;
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break;
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case 'lte':
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ret = this.term >= numbuh;
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break;
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case 'gte':
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ret = this.term <= numbuh;
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break;
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default:
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ret = this.term === numbuh;
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}
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}
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}
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return ret;
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};
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function generateLexArray(searchStr) {
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const opQueue = [],
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groupNegate = [],
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tokenStack = [];
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let searchTerm = null,
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boost = null,
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fuzz = null,
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lparenCtr = 0,
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negate = false,
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boostFuzzStr = '',
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localSearchStr = searchStr;
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while (localSearchStr.length > 0) {
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// eslint-disable-next-line no-loop-func
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tokenList.every(tokenArr => {
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const tokenName = tokenArr[0],
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tokenRE = tokenArr[1];
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let match = tokenRE.exec(localSearchStr),
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op;
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if (match) {
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match = match[0];
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if (Boolean(searchTerm) && (
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['and_op', 'or_op'].indexOf(tokenName) !== -1 ||
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tokenName === 'rparen' && lparenCtr === 0)) {
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// Set options.
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searchTerm.boost = boost;
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searchTerm.fuzz = fuzz;
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// Push to stack.
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tokenStack.push(searchTerm);
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// Reset term and options data.
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searchTerm = fuzz = boost = null;
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boostFuzzStr = '';
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lparenCtr = 0;
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if (negate) {
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tokenStack.push('not_op');
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negate = false;
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}
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}
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switch (tokenName) {
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case 'and_op':
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while (opQueue[0] === 'and_op') {
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tokenStack.push(opQueue.shift());
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}
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opQueue.unshift('and_op');
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break;
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case 'or_op':
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while (opQueue[0] === 'and_op' || opQueue[0] === 'or_op') {
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tokenStack.push(opQueue.shift());
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}
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opQueue.unshift('or_op');
|
|
break;
|
|
case 'not_op':
|
|
if (searchTerm) {
|
|
// We're already inside a search term, so it does
|
|
// not apply, obv.
|
|
searchTerm.append(match);
|
|
}
|
|
else {
|
|
negate = !negate;
|
|
}
|
|
break;
|
|
case 'lparen':
|
|
if (searchTerm) {
|
|
// If we are inside the search term, do not error
|
|
// out just yet; instead, consider it as part of
|
|
// the search term, as a user convenience.
|
|
searchTerm.append(match);
|
|
lparenCtr += 1;
|
|
}
|
|
else {
|
|
opQueue.unshift('lparen');
|
|
groupNegate.push(negate);
|
|
negate = false;
|
|
}
|
|
break;
|
|
case 'rparen':
|
|
if (lparenCtr > 0) {
|
|
if (searchTerm) {
|
|
searchTerm.append(match);
|
|
}
|
|
else {
|
|
searchTerm = new SearchTerm(match);
|
|
}
|
|
lparenCtr -= 1;
|
|
}
|
|
else {
|
|
while (opQueue.length) {
|
|
op = opQueue.shift();
|
|
if (op === 'lparen') {
|
|
break;
|
|
}
|
|
tokenStack.push(op);
|
|
}
|
|
if (groupNegate.length > 0 && groupNegate.pop()) {
|
|
tokenStack.push('not_op');
|
|
}
|
|
}
|
|
break;
|
|
case 'fuzz':
|
|
if (searchTerm) {
|
|
// For this and boost operations, we store the
|
|
// current match so far to a temporary string in
|
|
// case this is actually inside the term.
|
|
fuzz = parseFloat(match.substr(1));
|
|
boostFuzzStr += match;
|
|
}
|
|
else {
|
|
searchTerm = new SearchTerm(match);
|
|
}
|
|
break;
|
|
case 'boost':
|
|
if (searchTerm) {
|
|
boost = match.substr(1);
|
|
boostFuzzStr += match;
|
|
}
|
|
else {
|
|
searchTerm = new SearchTerm(match);
|
|
}
|
|
break;
|
|
case 'quoted_lit':
|
|
if (searchTerm) {
|
|
searchTerm.append(match);
|
|
}
|
|
else {
|
|
searchTerm = new SearchTerm(match);
|
|
}
|
|
break;
|
|
case 'word':
|
|
if (searchTerm) {
|
|
if (fuzz || boost) {
|
|
boost = fuzz = null;
|
|
searchTerm.append(boostFuzzStr);
|
|
boostFuzzStr = '';
|
|
}
|
|
searchTerm.append(match);
|
|
}
|
|
else {
|
|
searchTerm = new SearchTerm(match);
|
|
}
|
|
break;
|
|
default:
|
|
// Append extra spaces within search terms.
|
|
if (searchTerm) {
|
|
searchTerm.append(match);
|
|
}
|
|
}
|
|
|
|
// Truncate string and restart the token tests.
|
|
localSearchStr = localSearchStr.substr(
|
|
match.length, localSearchStr.length - match.length
|
|
);
|
|
|
|
// Break since we have found a match.
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
|
|
// Append final tokens to the stack, starting with the search term.
|
|
if (searchTerm) {
|
|
searchTerm.boost = boost;
|
|
searchTerm.fuzz = fuzz;
|
|
tokenStack.push(searchTerm);
|
|
}
|
|
if (negate) {
|
|
tokenStack.push('not_op');
|
|
}
|
|
|
|
if (opQueue.indexOf('rparen') !== -1 ||
|
|
opQueue.indexOf('lparen') !== -1) {
|
|
throw new Error('Mismatched parentheses.');
|
|
}
|
|
|
|
// Memory-efficient concatenation of remaining operators queue to the
|
|
// token stack.
|
|
tokenStack.push.apply(tokenStack, opQueue);
|
|
|
|
return tokenStack;
|
|
}
|
|
|
|
function parseTokens(lexicalArray) {
|
|
const operandStack = [];
|
|
let negate, op1, op2;
|
|
lexicalArray.forEach((token, i) => {
|
|
if (token !== 'not_op') {
|
|
negate = lexicalArray[i + 1] === 'not_op';
|
|
|
|
if (typeof token === 'string') {
|
|
op2 = operandStack.pop();
|
|
op1 = operandStack.pop();
|
|
|
|
if (typeof op1 === 'undefined' || typeof op2 === 'undefined') {
|
|
throw new Error('Missing operand.');
|
|
}
|
|
|
|
operandStack.push(new SearchAST(token, negate, op1, op2));
|
|
}
|
|
else {
|
|
if (negate) {
|
|
operandStack.push(new SearchAST(null, true, token));
|
|
}
|
|
else {
|
|
operandStack.push(token);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
if (operandStack.length > 1) {
|
|
throw new Error('Missing operator.');
|
|
}
|
|
|
|
op1 = operandStack.pop();
|
|
|
|
if (typeof op1 === 'undefined') {
|
|
return new SearchAST();
|
|
}
|
|
|
|
if (isTerminal(op1)) {
|
|
return new SearchAST(null, false, op1);
|
|
}
|
|
|
|
return op1;
|
|
}
|
|
|
|
function parseSearch(searchStr) {
|
|
return parseTokens(generateLexArray(searchStr));
|
|
}
|
|
|
|
function isTerminal(operand) {
|
|
// Whether operand is a terminal SearchTerm.
|
|
return typeof operand.term !== 'undefined';
|
|
}
|
|
|
|
function SearchAST(op, negate, leftOperand, rightOperand) {
|
|
this.negate = Boolean(negate);
|
|
this.leftOperand = leftOperand || null;
|
|
this.op = op || null;
|
|
this.rightOperand = rightOperand || null;
|
|
}
|
|
|
|
function combineOperands(ast1, ast2, parentAST) {
|
|
let localAst1;
|
|
if (parentAST.op === 'and_op') {
|
|
localAst1 = ast1 && ast2;
|
|
}
|
|
else {
|
|
localAst1 = ast1 || ast2;
|
|
}
|
|
|
|
if (parentAST.negate) {
|
|
return !localAst1;
|
|
}
|
|
|
|
return localAst1;
|
|
}
|
|
|
|
// Evaluation of the AST in regard to a target image
|
|
SearchAST.prototype.hitsImage = function(image) {
|
|
const treeStack = [];
|
|
// Left side node.
|
|
// eslint-disable-next-line @typescript-eslint/no-this-alias,consistent-this
|
|
let ast1 = this,
|
|
// Right side node.
|
|
ast2,
|
|
// Parent node of the current subtree.
|
|
parentAST;
|
|
|
|
// Build the initial tree node traversal stack, of the "far left" side.
|
|
// The general idea is to accumulate from the bottom and make stacks
|
|
// of right-hand subtrees that themselves accumulate upward. The left
|
|
// side node, ast1, will always be a Boolean representing the left-side
|
|
// evaluated value, up to the current subtree (parentAST).
|
|
while (!isTerminal(ast1)) {
|
|
treeStack.push(ast1);
|
|
ast1 = ast1.leftOperand;
|
|
|
|
if (!ast1) {
|
|
// Empty tree.
|
|
return false;
|
|
}
|
|
}
|
|
|
|
ast1 = ast1.match(image);
|
|
treeStack.push(ast1);
|
|
|
|
while (treeStack.length > 0) {
|
|
parentAST = treeStack.pop();
|
|
|
|
if (parentAST === null) {
|
|
// We are at the end of a virtual stack for a right node
|
|
// subtree. We switch the result of this stack from left
|
|
// (ast1) to right (ast2), pop the original left node,
|
|
// and finally pop the parent subtree itself. See near the
|
|
// end of this function to view how this is populated.
|
|
ast2 = ast1;
|
|
ast1 = treeStack.pop();
|
|
parentAST = treeStack.pop();
|
|
}
|
|
else {
|
|
// First, check to see if we can do a short-circuit
|
|
// evaluation to skip evaluating the right side entirely.
|
|
if (!ast1 && parentAST.op === 'and_op') {
|
|
ast1 = parentAST.negate;
|
|
continue;
|
|
}
|
|
|
|
if (ast1 && parentAST.op === 'or_op') {
|
|
ast1 = !parentAST.negate;
|
|
continue;
|
|
}
|
|
|
|
// If we are not at the end of a stack, grab the right
|
|
// node. The left node (ast1) is currently a terminal Boolean.
|
|
ast2 = parentAST.rightOperand;
|
|
}
|
|
|
|
if (typeof ast2 === 'boolean') {
|
|
ast1 = combineOperands(ast1, ast2, parentAST);
|
|
}
|
|
else if (!ast2) {
|
|
// A subtree with a single node. This is generally the case
|
|
// for negated tokens.
|
|
if (parentAST.negate) {
|
|
ast1 = !ast1;
|
|
}
|
|
}
|
|
else if (isTerminal(ast2)) {
|
|
// We are finally at a leaf and can evaluate.
|
|
ast2 = ast2.match(image);
|
|
ast1 = combineOperands(ast1, ast2, parentAST);
|
|
}
|
|
else {
|
|
// We are at a node whose right side is a new subtree.
|
|
// We will build a new "virtual" stack, but instead of
|
|
// building a new Array, we can insert a null object as a
|
|
// marker.
|
|
treeStack.push(parentAST, ast1, null);
|
|
|
|
do {
|
|
treeStack.push(ast2);
|
|
ast2 = ast2.leftOperand;
|
|
} while (!isTerminal(ast2));
|
|
|
|
ast1 = ast2.match(image);
|
|
}
|
|
}
|
|
|
|
return ast1;
|
|
};
|
|
|
|
SearchAST.prototype.dumpTree = function() {
|
|
// Dumps to string a simple diagram of the syntax tree structure
|
|
// (starting with this object as the root) for debugging purposes.
|
|
const retStrArr = [],
|
|
treeQueue = [['', this]];
|
|
let treeArr,
|
|
prefix,
|
|
tree;
|
|
|
|
while (treeQueue.length > 0) {
|
|
treeArr = treeQueue.shift();
|
|
prefix = treeArr[0];
|
|
tree = treeArr[1];
|
|
|
|
if (isTerminal(tree)) {
|
|
retStrArr.push(`${prefix}-> ${tree.term}`);
|
|
}
|
|
else {
|
|
if (tree.negate) {
|
|
retStrArr.push(`${prefix}+ NOT_OP`);
|
|
prefix += '\t';
|
|
}
|
|
if (tree.op) {
|
|
retStrArr.push(`${prefix}+ ${tree.op.toUpperCase()}`);
|
|
prefix += '\t';
|
|
treeQueue.unshift([prefix, tree.rightOperand]);
|
|
treeQueue.unshift([prefix, tree.leftOperand]);
|
|
}
|
|
else {
|
|
treeQueue.unshift([prefix, tree.leftOperand]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return retStrArr.join('\n');
|
|
};
|
|
|
|
export default parseSearch;
|