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// Copyright (c) 2011 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.
#include "chrome/browser/autofill/autofill_scanner.h"
#include "base/logging.h"
#include "chrome/browser/autofill/autofill_field.h"
#include "unicode/regex.h"
AutofillScanner::AutofillScanner(
const std::vector<const AutofillField*>& fields)
: cursor_(fields.begin()),
end_(fields.end()) {
}
AutofillScanner::~AutofillScanner() {
}
void AutofillScanner::Advance() {
DCHECK(!IsEnd());
++cursor_;
}
const AutofillField* AutofillScanner::Cursor() const {
if (IsEnd()) {
NOTREACHED();
return NULL;
}
return *cursor_;
}
bool AutofillScanner::IsEnd() const {
return cursor_ == end_;
}
void AutofillScanner::Rewind() {
DCHECK(!saved_cursors_.empty());
cursor_ = saved_cursors_.back();
saved_cursors_.pop_back();
}
void AutofillScanner::SaveCursor() {
saved_cursors_.push_back(cursor_);
}
namespace autofill {
bool MatchString(const string16& input, const string16& pattern) {
UErrorCode status = U_ZERO_ERROR;
icu::UnicodeString icu_pattern(pattern.data(), pattern.length());
icu::UnicodeString icu_input(input.data(), input.length());
icu::RegexMatcher matcher(icu_pattern, icu_input,
UREGEX_CASE_INSENSITIVE, status);
DCHECK(U_SUCCESS(status));
UBool match = matcher.find(0, status);
DCHECK(U_SUCCESS(status));
return !!match;
}
} // namespace autofill
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