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#pragma once
#include <string>
namespace string
{
/**
* Replaces all occurrences of the given search string in the subject
* with the given replacement, in-place.
*/
inline void replace_all(std::string& subject, const std::string& search, const std::string& replacement)
{
if (search.empty()) return; // nothing to do
std::size_t pos = 0;
while ((pos = subject.find(search, pos)) != std::string::npos)
{
subject.replace(pos, search.length(), replacement);
pos += replacement.length();
}
}
/**
* Replaces all occurrences of of the given search string with
* the given replacement and returns a new string instance
* containing the result. The incoming subject is passed by value such
* that the original string is not altered.
*/
inline std::string replace_all_copy(std::string subject, const std::string& search, const std::string& replacement)
{
replace_all(subject, search, replacement);
return subject;
}
/**
* Replaces the first occurrence of the given search string in the subject
* with the given replacement, in-place.
*/
inline void replace_first(std::string& subject, const std::string& search, const std::string& replacement)
{
if (search.empty()) return; // nothing to do
std::size_t pos = subject.find(search);
if (pos != std::string::npos)
{
subject.replace(pos, search.length(), replacement);
}
}
/**
* Replaces the last occurrence of the given search string in the subject
* with the given replacement, in-place.
*/
inline void replace_last(std::string& subject, const std::string& search, const std::string& replacement)
{
if (search.empty()) return; // nothing to do
std::size_t pos = subject.rfind(search);
if (pos != std::string::npos)
{
subject.replace(pos, search.length(), replacement);
}
}
}
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