1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_AUTOCOMPLETE_URL_PREFIX_H_ 6 #define CHROME_BROWSER_AUTOCOMPLETE_URL_PREFIX_H_ 7 8 #include <vector> 9 10 #include "base/strings/string16.h" 11 12 struct URLPrefix; 13 typedef std::vector<URLPrefix> URLPrefixes; 14 15 // A URL prefix; combinations of schemes and (least significant) domain labels 16 // that may be inferred from certain URL-like input strings. 17 struct URLPrefix { 18 URLPrefix(const string16& prefix, size_t num_components); 19 20 // Returns a vector of URL prefixes sorted by descending number of components. 21 static const URLPrefixes& GetURLPrefixes(); 22 23 // Returns if the argument is a valid URL prefix. 24 static bool IsURLPrefix(const string16& prefix); 25 26 // Returns the URL prefix of |text| with the most components, or NULL. 27 // |prefix_suffix| (which may be empty) is appended to every attempted prefix, 28 // which is useful for finding the innermost match of user input in a URL. 29 // Performs case insensitive string comparison. 30 static const URLPrefix* BestURLPrefix(const string16& text, 31 const string16& prefix_suffix); 32 33 string16 prefix; 34 35 // The number of URL components (scheme, domain label, etc.) in the prefix. 36 // For example, "http://foo.com" and "www.bar.com" each have one component, 37 // while "ftp://ftp.ftp.com" has two, and "mysite.com" has none. 38 size_t num_components; 39 }; 40 41 #endif // CHROME_BROWSER_AUTOCOMPLETE_URL_PREFIX_H_ 42
