1b5b789342
log.h now includes string.hh, which is conceptually wrong, but log.h will shortly disappear and be superceded by log.hh.
147 lines
2.9 KiB
C++
147 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2022-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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#include <maxbase/ccdefs.hh>
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#include <algorithm>
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#include <string>
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/**
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* Thread-safe (but not re-entrant) strerror.
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*
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* @param error An errno value.
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*
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* @return The corresponding string.
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*/
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const char* mxb_strerror(int error);
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namespace maxbase
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{
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/**
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* Left trim a string.
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*
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* @param str String to trim.
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* @return @c str
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*
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* @note If there is leading whitespace, the string is moved so that
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* the returned pointer is always the same as the one given as
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* argument.
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*/
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char* ltrim(char* str);
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/**
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* Right trim a string.
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*
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* @param str String to trim.
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* @return @c str
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*
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* @note The returned pointer is always the same the one given as
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* argument.
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*/
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char* rtrim(char* str);
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/**
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* Left and right trim a string.
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*
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* @param str String to trim.
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* @return @c str
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*
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* @note If there is leading whitespace, the string is moved so that
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* the returned pointer is always the same the one given as
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* argument.
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*/
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char* trim(char* str);
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/**
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* @brief Left trim a string.
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*
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* @param s The string to be trimmed.
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*/
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inline void ltrim(std::string& s)
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{
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s.erase(s.begin(),
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std::find_if(s.begin(),
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s.end(),
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std::not1(std::ptr_fun<int, int>(std::isspace))));
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}
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/**
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* @brief Right trim a string.
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*
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* @param s The string to be trimmed.
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*/
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inline void rtrim(std::string& s)
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{
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s.erase(std::find_if(s.rbegin(),
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s.rend(),
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std::not1(std::ptr_fun<int, int>(std::isspace))).base(),
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s.end());
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}
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/**
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* @brief Trim a string.
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*
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* @param s The string to be trimmed.
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*/
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inline void trim(std::string& s)
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{
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ltrim(s);
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rtrim(s);
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}
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/**
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* @brief Left-trimmed copy of a string.
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*
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* @param s The string to the trimmed.
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*
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* @return A left-trimmed copy of the string.
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*/
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inline std::string ltrimmed_copy(const std::string& original)
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{
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std::string s(original);
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ltrim(s);
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return s;
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}
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/**
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* @brief Right-trimmed copy of a string.
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*
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* @param s The string to the trimmed.
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*
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* @return A right-trimmed copy of the string.
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*/
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inline std::string rtrimmed_copy(const std::string& original)
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{
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std::string s(original);
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rtrim(s);
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return s;
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}
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/**
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* @brief Trimmed copy of a string.
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*
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* @param s The string to the trimmed.
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*
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* @return A trimmed copy of the string.
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*/
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inline std::string trimmed_copy(const std::string& original)
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{
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std::string s(original);
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ltrim(s);
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rtrim(s);
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return s;
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}
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}
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