Botan::Charset Namespace Reference

Functions
bool	caseless_cmp (char a, char b)
byte	char2digit (char c)
char	digit2char (byte b)
bool	is_digit (char c)
bool	is_space (char c)
std::string	transcode (const std::string &str, Character_Set to, Character_Set from)

Function Documentation

bool BOTAN_DLL Botan::Charset::caseless_cmp	(	char	a,
		char	b
	)

Definition at line 193 of file charset.cpp.

Referenced by Botan::x500_name_cmp().

   {
   return (std::tolower(static_cast<unsigned char>(a)) ==
           std::tolower(static_cast<unsigned char>(b)));
   }

byte BOTAN_DLL Botan::Charset::char2digit

(

char

c

)

Definition at line 149 of file charset.cpp.

Referenced by Botan::BigInt::decode().

   {
   switch(c)
      {
      case '0': return 0;
      case '1': return 1;
      case '2': return 2;
      case '3': return 3;
      case '4': return 4;
      case '5': return 5;
      case '6': return 6;
      case '7': return 7;
      case '8': return 8;
      case '9': return 9;
      }

   throw Invalid_Argument("char2digit: Input is not a digit character");
   }

char BOTAN_DLL Botan::Charset::digit2char

(

byte

b

)

Definition at line 171 of file charset.cpp.

Referenced by Botan::BigInt::encode().

   {
   switch(b)
      {
      case 0: return '0';
      case 1: return '1';
      case 2: return '2';
      case 3: return '3';
      case 4: return '4';
      case 5: return '5';
      case 6: return '6';
      case 7: return '7';
      case 8: return '8';
      case 9: return '9';
      }

   throw Invalid_Argument("digit2char: Input is not a digit");
   }

bool BOTAN_DLL Botan::Charset::is_digit

(

char

c

)

Definition at line 128 of file charset.cpp.

Referenced by Botan::BigInt::decode(), and Botan::timespec_to_u32bit().

   {
   if(c == '0' || c == '1' || c == '2' || c == '3' || c == '4' ||
      c == '5' || c == '6' || c == '7' || c == '8' || c == '9')
      return true;
   return false;
   }

bool BOTAN_DLL Botan::Charset::is_space

(

char

c

)

Definition at line 139 of file charset.cpp.

Referenced by Botan::BigInt::decode(), Botan::PGP_decode(), and Botan::x500_name_cmp().

   {
   if(c == ' ' || c == '\t' || c == '\n' || c == '\r')
      return true;
   return false;
   }

std::string BOTAN_DLL Botan::Charset::transcode	(	const std::string &	str,
		Character_Set	to,
		Character_Set	from
	)

Definition at line 103 of file charset.cpp.

References Botan::LATIN1_CHARSET, Botan::LOCAL_CHARSET, Botan::ASN1::to_string(), Botan::UCS2_CHARSET, and Botan::UTF8_CHARSET.

Referenced by Botan::ASN1_String::decode_from(), Botan::AlternativeName::decode_from(), Botan::X509_Time::decode_from(), Botan::GeneralName::decode_from(), Botan::ASN1_String::encode_into(), Botan::X509_Time::encode_into(), Botan::Cert_Extension::Name_Constraints::validate(), and Botan::ASN1_String::value().

   {
   if(to == LOCAL_CHARSET)
      to = LATIN1_CHARSET;
   if(from == LOCAL_CHARSET)
      from = LATIN1_CHARSET;

   if(to == from)
      return str;

   if(from == LATIN1_CHARSET && to == UTF8_CHARSET)
      return latin1_to_utf8(str);
   if(from == UTF8_CHARSET && to == LATIN1_CHARSET)
      return utf8_to_latin1(str);
   if(from == UCS2_CHARSET && to == LATIN1_CHARSET)
      return ucs2_to_latin1(str);

   throw Invalid_Argument("Unknown transcoding operation from " +
                          std::to_string(from) + " to " + std::to_string(to));
   }