fluxengine/lib/utils.cc

#include "globals.h"
#include "utils.h"

bool emergencyStop = false;

static const char* WHITESPACE = " \t\n\r\f\v";
static const char* SEPARATORS = "/\\";

void ErrorException::print() const
{
	std::cerr << message << '\n';
}

bool beginsWith(const std::string& value, const std::string& ending)
{
    if (ending.size() > value.size())
        return false;
    return std::equal(ending.begin(), ending.end(), value.begin());
}

// Case-insensitive for endings within ASCII.
bool endsWith(const std::string& value, const std::string& ending)
{
    if (ending.size() > value.size())
        return false;
    std::string lowercase(ending.size(), 0);
    std::transform(value.rbegin(), value.rbegin() + ending.size(), lowercase.begin(), [](unsigned char c){ return std::tolower(c); });
    return std::equal(ending.rbegin(), ending.rend(), value.rbegin()) ||
        std::equal(ending.rbegin(), ending.rend(), lowercase.begin());
}

std::string leftTrimWhitespace(std::string value)
{
	value.erase(0, value.find_first_not_of(WHITESPACE));
	return value;
}

std::string rightTrimWhitespace(std::string value)
{
	value.erase(value.find_last_not_of(WHITESPACE) + 1);
	return value;
}

std::string trimWhitespace(const std::string& value)
{
	return leftTrimWhitespace(rightTrimWhitespace(value));
}

std::string getLeafname(const std::string& value)
{
	constexpr char sep = '/';
	#ifdef _WIN32
		sep = '\\';
	#endif

   size_t i = value.find_last_of(SEPARATORS);
   if (i != std::string::npos) {
      return value.substr(i+1, value.length() - i);
   }

   return value;
}

void testForEmergencyStop()
{
	if (emergencyStop)
		throw EmergencyStopException();
}