1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LIBTEXTCLASSIFIER_ANNOTATOR_STRIP_UNPAIRED_BRACKETS_H_ 18 #define LIBTEXTCLASSIFIER_ANNOTATOR_STRIP_UNPAIRED_BRACKETS_H_ 19 20 #include <string> 21 22 #include "annotator/types.h" 23 #include "utils/utf8/unilib.h" 24 25 namespace libtextclassifier3 { 26 27 // If the first or the last codepoint of the given span is a bracket, the 28 // bracket is stripped if the span does not contain its corresponding paired 29 // version. 30 CodepointSpan StripUnpairedBrackets( 31 const UnicodeText::const_iterator& span_begin, 32 const UnicodeText::const_iterator& span_end, CodepointSpan span, 33 const UniLib& unilib); 34 35 // Same as above but takes a UnicodeText instance for the span. 36 CodepointSpan StripUnpairedBrackets(const UnicodeText& context, 37 CodepointSpan span, const UniLib& unilib); 38 39 // Same as above but takes a string instance. 40 CodepointSpan StripUnpairedBrackets(const std::string& context, 41 CodepointSpan span, const UniLib& unilib); 42 43 } // namespace libtextclassifier3 44 45 #endif // LIBTEXTCLASSIFIER_ANNOTATOR_STRIP_UNPAIRED_BRACKETS_H_ 46