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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | //////////////////////////////////////////////////////////////////////////////// // // File Name: String.hpp // Class Name: hString // Description: 用于字符串相关扩展操作 // Author: Fawdlstty // // Date: Nov 19, 2016 // Log: Create this file. // //////////////////////////////////////////////////////////////////////////////// #ifndef __STRING_HPP__ #define __STRING_HPP__ #include <string> #include <cstdarg> template<typename charT> class hString { public: //清除字符串开始部分空格 static void trimLeft (std::basic_string<charT> &str) { str.erase (0, str.find_first_not_of (' ')); } //清除字符串结束部分空格 static void trimRight (std::basic_string<charT> &str) { str.erase (str.find_last_not_of (' ') + 1); } //清楚两端空格 static void trim (std::basic_string<charT> &str) { str.erase (0, str.find_first_not_of (' ')); str.erase (str.find_last_not_of (' ') + 1); } //删除字符串中指定字符 static void erase (std::basic_string<charT> &str, const charT &charactor) { str.erase (remove_if (str.begin (), str.end (), bind2nd (std::equal_to<charT> (), charactor)), str.end ()); } //替换字符串中指定字符串 static int replace (std::basic_string<charT> &str, const std::basic_string<charT> &strObj, const std::basic_string<charT> &strDest) { int ret = 0; charT pos = str.find (strObj); while (pos != std::basic_string<charT>::npos) { ret++; str.replace (pos, strObj.size (), strDest); pos = str.find (strObj); } return ret; } //一行中的字符串截断，并可转为其他类型 template<typename T> static int split_aLine_conv (const std::basic_string<charT> &str, std::vector<T> &seq, charT separator) { if (str.empty ()) return 0; int count = 0; std::basic_stringstream<charT> bs (str); for (std::basic_string<charT> s; std::getline (bs, s, separator); count++) { typename T val; std::basic_stringstream<charT> bss (s); bss >> val; seq.push_back (val); } return count; } //字符串截断 static void split (std::basic_string<charT> s, std::vector<std::basic_string<charT> >& v, char ch = ' ') { ptrdiff_t start = 0, p, len = s.length (); do { p = s.find (ch, start); if (p == -1) p = len; s [p] = '\0'; if (s [start] != '\0') v.push_back (&s [start]); start = p + 1; } while (start < len); } //字符串格式化 static std::basic_string<charT> format (std::basic_string<charT> fmt_str, ...) { //来源：http://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf ptrdiff_t final_n, n = ((ptrdiff_t) fmt_str.size ()) * 2; std::basic_string<charT> str; std::unique_ptr<charT []> formatted; va_list ap; while (1) { formatted.reset (new charT [n]); //strcpy_s (&formatted [0], fmt_str.size (), fmt_str.c_str ()); va_start (ap, fmt_str); final_n = vsnprintf_s (&formatted [0], n, _TRUNCATE, fmt_str.c_str (), ap); va_end (ap); if (final_n < 0 || final_n >= n) n += abs (final_n - n + 1); else break; } return std::basic_string<charT> (formatted.get ()); } }; typedef hString<char> hStringA; typedef hString<wchar_t> hStringW; #ifdef _UNICODE typedef hStringW hString_t; typedef std::wstring string_t; #else typedef hStringA hString_t; typedef std::string string_t; #endif #endif //__STRING_HPP__ |
