SHA256
98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
#pragma once
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <cctype>
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#include <iostream>
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namespace bstl {
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class String {
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public:
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String();
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String(const std::string& str);
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String(const char* str);
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String(const String& other) = default;
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String& operator=(const String& other) = default;
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// 获取标准字符串
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std::string str() const;
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const char* c_str() const;
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size_t length() const;
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size_t size() const;
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bool empty() const;
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// 获取/修改字符
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char at(size_t pos) const;
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char operator[](size_t pos) const;
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char& operator[](size_t pos);
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// 分割 - 按分隔符分割字符串
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std::vector<String> split(const String& delimiter = " ") const;
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// 连接 - 用分隔符连接多个字符串
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static String join(const std::vector<String>& parts, const String& delimiter = "");
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// 替换 - 替换第一个/所有匹配项
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String replace(const String& oldStr, const String& newStr, int count = -1) const;
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// 大小写转换
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String upper() const;
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String lower() const;
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String capitalize() const; // 首字母大写
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String title() const; // 每个单词首字母大写
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// 判断函数
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bool startswith(const String& prefix) const;
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bool endswith(const String& suffix) const;
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bool contains(const String& substring) const;
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bool isdigit() const;
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bool isalpha() const;
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bool isalnum() const;
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bool isspace() const;
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bool isupper() const;
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bool islower() const;
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// 查找和计数
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int find(const String& substring, size_t start = 0) const;
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int rfind(const String& substring) const; // 从后往前查找
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int count(const String& substring) const;
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// 去除空格和其他字符
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String strip() const; // 去除前后空格
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String lstrip() const; // 去除前导空格
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String rstrip() const; // 去除尾部空格
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String strip(const String& chars) const; // 去除指定字符
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// 对齐和填充
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String ljust(size_t width, char fillchar = ' ') const;
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String rjust(size_t width, char fillchar = ' ') const;
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String center(size_t width, char fillchar = ' ') const;
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// 字符串转换
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int toInt() const;
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long long toLongLong() const;
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double toDouble() const;
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// 运算符重载
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String operator+(const String& other) const;
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String operator+(const char* str) const;
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String& operator+=(const String& other);
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bool operator==(const String& other) const;
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bool operator!=(const String& other) const;
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bool operator<(const String& other) const;
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bool operator>(const String& other) const;
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bool operator<=(const String& other) const;
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bool operator>=(const String& other) const;
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private:
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std::string data_;
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};
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// 流运算符重载
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std::ostream& operator<<(std::ostream& os, const String& str);
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std::istream& operator>>(std::istream& is, String& str);
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} // namespace bstl
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