Identifier Namespace Reference

Functions
bool	isDigit (const char c)
IdentifierField::element_type	parseStreamDigits (std::istream &is)
IdentifierField::element_vector	parseStreamList (std::istream &is)
IdentifierField::element_vector	parseTextList (std::string &text)

Function Documentation

isDigit()

bool Identifier::isDigit

(

const char

c

)

Definition at line 16 of file IdentifierFieldParser.cxx.

                       {
    return std::isdigit(c) or c=='-' or c=='+';
  }

parseStreamDigits()

IdentifierField::element_type Identifier::parseStreamDigits

(

std::istream &

is

)

Definition at line 21 of file IdentifierFieldParser.cxx.

                                    {
    static constexpr std::errc ok{};
    char buffer[20]{};
    int i{};
    IdentifierField::element_type v{};
    for(int c{};isDigit(is.peek()) and i<20;++i ){
      if (c == '+') is.ignore();
      c=is.get();
      buffer[i] = c;
    }
    const auto [ptr,ec] = std::from_chars(buffer, buffer+i, v);
    if (ec != ok) throw std::invalid_argument("Invalid argument in parseStreamDigits");
    return v;
  }

parseStreamList()

IdentifierField::element_vector Identifier::parseStreamList

(

std::istream &

is

)

Definition at line 37 of file IdentifierFieldParser.cxx.

                                  {
    IdentifierField::element_vector result;
    for (int c{};(not is.eof());c=is.peek()){
      while (std::isspace(is.peek())){is.ignore();}
      if (isDigit(c)){
        if (c =='+') is.ignore();
        int v = parseStreamDigits(is);
        result.push_back(v);
      } else if (c == ','){
        is.ignore();
      } else if (c == '/' ){ 
        break;
      }
    }
    return result;
  }

parseTextList()

IdentifierField::element_vector Identifier::parseTextList

(

std::string &

text

)