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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OMNIBOX_BROWSER_URL_PREFIX_H_
#define COMPONENTS_OMNIBOX_BROWSER_URL_PREFIX_H_
#include <stddef.h>
#include <vector>
#include "base/strings/string16.h"
struct URLPrefix;
typedef std::vector<URLPrefix> URLPrefixes;
// A URL prefix; combinations of schemes and (least significant) domain labels
// that may be inferred from certain URL-like input strings.
struct URLPrefix {
URLPrefix(const base::string16& prefix, size_t num_components);
// Returns a vector of URL prefixes sorted by descending number of components.
static const URLPrefixes& GetURLPrefixes();
// Returns the URL prefix of |text| with the most components, or NULL.
// |prefix_suffix| (which may be empty) is appended to every attempted prefix,
// which is useful for finding the innermost match of user input in a URL.
// Performs case insensitive string comparison.
static const URLPrefix* BestURLPrefix(const base::string16& text,
const base::string16& prefix_suffix);
// Sees if |text| is inlineable against either |input| or |fixed_up_input|,
// returning the appropriate inline autocomplete offset or
// base::string16::npos if |text| is not inlineable.
// |allow_www_prefix_without_scheme| says whether to consider an input such
// as "foo" to be allowed to match against text "www.foo.com". This is
// needed because sometimes the string we're matching against here can come
// from a match's fill_into_edit, which can start with "www." without having
// a protocol at the beginning, and we want to allow these matches to be
// inlineable. ("www." is not otherwise on the default prefix list.)
static size_t GetInlineAutocompleteOffset(
const base::string16& input,
const base::string16& fixed_up_input,
const bool allow_www_prefix_without_scheme,
const base::string16& text);
base::string16 prefix;
// The number of URL components (scheme, domain label, etc.) in the prefix.
// For example, "http://foo.com" and "www.bar.com" each have one component,
// while "ftp://ftp.ftp.com" has two, and "mysite.com" has none.
size_t num_components;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_URL_PREFIX_H_
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