home/src/string.cc

77 lines
1.4 KiB
C++

#include "string.hh"
#include "exception.hh"
namespace Kakoune
{
String int_to_str(int value)
{
const bool negative = value < 0;
if (negative)
value = -value;
char buffer[16];
size_t pos = sizeof(buffer);
buffer[--pos] = 0;
do
{
buffer[--pos] = '0' + (value % 10);
value /= 10;
}
while (value);
if (negative)
buffer[--pos] = '-';
return String(buffer + pos);
}
int str_to_int(const String& str)
{
return atoi(str.c_str());
}
std::vector<String> split(const String& str, char separator)
{
auto begin = str.begin();
auto end = str.begin();
std::vector<String> res;
while (end != str.end())
{
while (end != str.end() and *end != separator)
++end;
res.push_back(String(begin, end));
if (end == str.end())
break;
begin = ++end;
}
return res;
}
String String::replace(const String& expression,
const String& replacement) const
{
boost::regex re(expression);
return String(boost::regex_replace(*this, re, replacement));
}
String option_to_string(const Regex& re)
{
return String{re.str()};
}
void option_from_string(const String& str, Regex& re)
{
try
{
re = Regex{str.begin(), str.end()};
}
catch (boost::regex_error& err)
{
throw runtime_error("unable to create regex: "_str + err.what());
}
}
}