ESPresense/lib/BleFingerprint/strings.cpp

77 lines
1.6 KiB
C++

#include <regex>
#include <strings.h>
std::string lowertrim(std::string str, char c)
{
int atstart = 0, atend = str.size() - 1;
for (int i = 0; i < str.size(); i++)
{
if (str[i] != c)
{
atstart = i;
break;
}
}
for (int i = str.size() - 1; i >= 0; i--)
{
if (str[i] != c)
{
atend = i;
break;
}
}
char diff = 'a' - 'A';
std::string fistr = "";
for (int i = atstart; i <= atend; i++)
{
if ((str[i] >= 'A') && (str[i] <= 'Z'))
fistr += (str[i] + diff);
else
fistr += str[i];
}
return fistr;
}
std::regex whitespace_re("[\\s\\W-]+");
std::string slugify(std::string text)
{
return lowertrim(std::regex_replace(text, whitespace_re, "_"), '_');
}
String slugify(String text)
{
std::string s = std::string(text.c_str());
return slugify(s).c_str();
}
std::string kebabify(std::string text)
{
return lowertrim(std::regex_replace(text, whitespace_re, "-"), '-');
}
String kebabify(String text)
{
std::string s = std::string(text.c_str());
return kebabify(s).c_str();
}
std::string hexStr(const char *data, int len)
{
constexpr char hexmap[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
std::string s(len * 2, ' ');
for (int i = 0; i < len; ++i)
{
s[2 * i] = hexmap[(data[i] & 0xF0) >> 4];
s[2 * i + 1] = hexmap[data[i] & 0x0F];
}
return s;
}
std::string hexStr(std::string s)
{
return hexStr(s.c_str(), s.length());
}