// Copyright 2017 The Crashpad Authors // // 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. #ifndef CRASHPAD_UTIL_MISC_LEXING_H_ #define CRASHPAD_UTIL_MISC_LEXING_H_ namespace crashpad { //! \brief Match a pattern at the start of a char string. //! //! \param[in,out] input A pointer to the char string to match against. \a input //! is advanced past the matched pattern if it is found. //! \param[in] pattern The pattern to match at the start of \a input. //! \return `true` if the pattern is matched exactly and \a input is advanced, //! otherwise `false`. bool AdvancePastPrefix(const char** input, const char* pattern); //! \brief Convert a prefix of a char string to a numeric value. //! //! Valid values are positive or negative decimal numbers, matching the regular //! expression "-?\d+", and within the limits of T. //! //! \param[in,out] input A pointer to the char string to match against. \a input //! is advanced past the number if one is found. //! \param[out] value The converted number, if one is found. //! \return `true` if a number is found at the start of \a input and \a input is //! advanced, otherwise `false`. template <typename T> bool AdvancePastNumber(const char** input, T* value); } // namespace crashpad #endif // CRASHPAD_UTIL_MISC_LEXING_H