| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "utils/test-utils.h" |
| |
| #include <iterator> |
| |
| #include "utils/codepoint-range.h" |
| #include "utils/strings/utf8.h" |
| #include "utils/utf8/unicodetext.h" |
| |
| namespace libtextclassifier3 { |
| |
| using libtextclassifier3::Token; |
| |
| std::vector<Token> TokenizeOnSpace(const std::string& text) { |
| const char32 space_codepoint = ValidCharToRune(" "); |
| const UnicodeText unicode_text = UTF8ToUnicodeText(text, /*do_copy=*/false); |
| |
| std::vector<Token> result; |
| |
| int token_start_codepoint = 0; |
| auto token_start_it = unicode_text.begin(); |
| int codepoint_idx = 0; |
| |
| UnicodeText::const_iterator it; |
| for (it = unicode_text.begin(); it < unicode_text.end(); it++) { |
| if (*it == space_codepoint) { |
| result.push_back(Token{UnicodeText::UTF8Substring(token_start_it, it), |
| token_start_codepoint, codepoint_idx}); |
| |
| token_start_codepoint = codepoint_idx + 1; |
| token_start_it = it; |
| token_start_it++; |
| } |
| |
| codepoint_idx++; |
| } |
| result.push_back(Token{UnicodeText::UTF8Substring(token_start_it, it), |
| token_start_codepoint, codepoint_idx}); |
| |
| return result; |
| } |
| |
| } // namespace libtextclassifier3 |