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1 // Copyright 2015 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 #include "components/autofill/core/common/autofill_util.h" | |
6 | |
7 #include <vector> | |
8 | |
9 #include "base/command_line.h" | |
10 #include "base/i18n/case_conversion.h" | |
11 #include "base/strings/string_piece.h" | |
12 #include "base/strings/string_util.h" | |
13 #include "base/strings/utf_string_conversions.h" | |
14 #include "components/autofill/core/common/autofill_switches.h" | |
15 | |
16 namespace autofill { | |
17 | |
18 namespace { | |
19 | |
20 base::string16 kTokenSeperatorsUTF16 = base::ASCIIToUTF16(" .,-_@"); | |
vabr (Chromium)
2015/03/31 09:38:07
I'm surprised none of the compilers complained abo
Pritam Nikam
2015/03/31 14:26:12
Done.
Removed it and used in-place substitution.
| |
21 | |
22 } // namespace | |
23 | |
24 bool IsFeatureSubstringMatchEnabled() { | |
25 return base::CommandLine::ForCurrentProcess()->HasSwitch( | |
26 switches::kEnableSuggestionsWithSubstringMatch); | |
27 } | |
28 | |
29 bool IsContentsPrefixOfSuggestionToken(const base::string16& field_suggestion, | |
30 const base::string16& field_contents, | |
31 bool case_sensitive) { | |
32 if (field_suggestion.empty() || field_contents.empty()) { | |
33 return false; | |
34 } | |
35 | |
36 bool result = false; | |
37 base::string16 search_string = | |
38 case_sensitive ? field_contents : base::i18n::ToLower(field_contents); | |
39 base::string16 suggestion_string = | |
40 case_sensitive ? field_suggestion : base::i18n::ToLower(field_suggestion); | |
41 base::string16::size_type offset = suggestion_string.find(search_string); | |
vabr (Chromium)
2015/03/31 09:38:07
Why are you doing this pre-search?
If it is just f
Pritam Nikam
2015/03/31 14:26:11
Done.
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42 if (base::string16::npos != offset) { | |
43 std::vector<base::string16> suggestion_tokens; | |
44 Tokenize(suggestion_string, kTokenSeperatorsUTF16, &suggestion_tokens); | |
45 | |
46 // Check whether the |search_string| prefixes any of the | |
47 // |suggestion_string|'s token. | |
48 if (suggestion_tokens.size() != 0) { | |
vabr (Chromium)
2015/03/31 09:38:07
You do not really need this if. For size() == 0 th
Pritam Nikam
2015/03/31 14:26:12
Done.
| |
49 for (auto token : suggestion_tokens) { | |
50 result = StartsWith(token, search_string, case_sensitive); | |
51 if (result) | |
52 break; | |
53 } | |
54 } | |
55 } | |
56 | |
57 return result; | |
58 } | |
59 | |
60 base::string16::size_type ComputeRange(const base::string16& field_suggestion, | |
61 const base::string16& field_contents, | |
62 size_t* start, | |
63 size_t* end) { | |
64 base::string16 user_input = base::i18n::ToLower(field_contents); | |
65 base::string16 suggestion = base::i18n::ToLower(field_suggestion); | |
66 base::string16::size_type offset = suggestion.find(user_input); | |
67 if (base::string16::npos != offset) { | |
68 *start = offset + user_input.size(); | |
69 *end = suggestion.size(); | |
70 } | |
71 | |
72 return offset; | |
73 } | |
74 | |
75 } // namespace autofill | |
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