95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
#include "StringTools.h"
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#include <sstream>
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std::string StringTools::Replace(const std::string& str, const char find, const std::string& subst) {
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std::stringstream ss;
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for (std::size_t i = 0; i < str.length(); i++)
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{
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if (str[i] != find)
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ss << str[i];
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else
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ss << subst;
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}
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return ss.str();
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}
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std::string StringTools::Replace(const std::string& str, const std::string& find, const std::string& subst) {
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if (find.length() == 0)
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return str;
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std::stringstream ss;
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std::size_t posFound = 0;
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std::size_t lastFound = 0;
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while (posFound != std::string::npos)
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{
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lastFound = posFound;
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posFound = str.find(find, posFound);
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if (posFound != std::string::npos)
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{
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ss << str.substr(lastFound, posFound - lastFound) << subst;
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posFound += find.length();
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}
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else
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{
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ss << str.substr(lastFound, (str.length()) - lastFound);
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}
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}
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return ss.str();
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}
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std::string StringTools::Replace(const std::string& str, const char find, const char subst) {
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std::stringstream ss;
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ss << subst;
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return Replace(str, find, ss.str());
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}
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std::string StringTools::Replace(const std::string& str, const std::string& find, const char subst) {
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std::stringstream ss;
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ss << subst;
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return Replace(str, find, ss.str());
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}
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std::string StringTools::Lower(const std::string& str) {
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std::stringstream ss;
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for (std::size_t i = 0; i < str.size(); i++)
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{
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const char c = str[i];
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// Quick-accept: regular letters
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if ((c >= 'A') && (c <= 'Z'))
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ss << (char)(c | 32);
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// Else: keep the character as is
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else ss << c;
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}
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return ss.str();
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}
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std::string StringTools::Upper(const std::string& str) {
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std::stringstream ss;
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for (std::size_t i = 0; i < str.size(); i++)
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{
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const char c = str[i];
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// Quick-accept: regular letters
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if ((c >= 'a') && (c <= 'z'))
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ss << (char)(c & ~32);
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// Else: keep the character as is
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else ss << c;
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}
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return ss.str();
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}
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