Function onlyWhitespaces

src/epsimage.cpp:111–115

Check whether a string contains only white space characters

//! Check whether a string contains only white space characters
bool onlyWhitespaces(const std::string& s) {
  // According to the DSC 3.0 specification, 4.4 Parsing Rules,
  // only spaces and tabs are considered to be white space characters.
  return s.find_first_not_of(" \t") == std::string::npos;
}

//! Read the next line of a buffer, allow for changing line ending style
size_t readLine(std::string& line, const byte* data, size_t startPos, size_t size) {