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80 lines
2.2 KiB
80 lines
2.2 KiB
// Copyright 2020 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file
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bool matchesQuery(String query, String sampleAttributes) {
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if (query == null || query.isEmpty) {
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return true;
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}
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var queryWords = query.split(' ')..removeWhere((s) => s.isEmpty);
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var attributes = sampleAttributes.split(' ')..removeWhere((s) => s.isEmpty);
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// Test for type filter
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// This will check whether a type parameter is present in the
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// search query, and return false if the self type mismatches
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// the query type
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for (var word in queryWords) {
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if ((word.contains('type:') && !attributes.contains(word)) ||
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(word.contains('platform:') && !attributes.contains('type:demo'))) {
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return false;
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}
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}
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// Test for exact matches
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if (attributes.contains(query)) {
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return true;
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}
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// Test for exact matches for keywords
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var matches = 0;
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for (var word in queryWords) {
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if (attributes.contains(word)) {
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matches++;
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}
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if (matches == queryWords.length) {
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return true;
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}
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}
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// Test for queries whose keywords are a substring of any attribute
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// e.g. searching "kitten tag:cats" is a match for a sample with the
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// attributes "kittens tag:cats"
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matches = 0;
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for (var attribute in attributes) {
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for (var queryWord in queryWords) {
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if (attribute.startsWith(queryWord)) {
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matches++;
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}
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}
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// Only return true if each search term was matched
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if (matches == queryWords.length) {
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return true;
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}
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}
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return false;
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}
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Map<String, String> parseHash(String hash) =>
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Uri.parse(hash.substring(hash.indexOf('#') + 1)).queryParameters;
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String formatHash(Map<String, String> parameters) =>
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Uri().replace(queryParameters: parameters).toString();
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String searchQueryFromParams(Map<String, String> params) {
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var buf = StringBuffer();
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if (params.containsKey('search')) {
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buf.write(params['search']);
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}
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if (params.containsKey('type')) {
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if (buf.isNotEmpty) buf.write(' ');
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buf.write('type:' + params['type']);
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}
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if (params.containsKey('platform')) {
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if (buf.isNotEmpty) buf.write(' ');
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buf.write('platform:' + params['platform']);
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}
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return buf.toString();
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}
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