ZXChars.h

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/* **************************************************************************/
#ifndef ZXCHARS
#define ZXCHARS
 
#include <string>
#include "zxecosystem/ancillary/CppAddons.h"
 
namespace zxeco
{
 
/*****************************************************************************
*
*    Constants
*
******************************************************************************/
 
constexpr uint8_t CHRSPC = 32; 
constexpr uint8_t CHRCOMMA = 6; 
constexpr uint8_t CHREDIT = 7; 
constexpr uint8_t CHRLEFT = 8; 
constexpr uint8_t CHRRIGHT = 9; 
constexpr uint8_t CHRDOWN = 10; 
constexpr uint8_t CHRUP = 11; 
constexpr uint8_t CHRDELETE = 12; 
constexpr uint8_t CHRENTER = 13; 
constexpr uint8_t CHRNUM = 14; 
constexpr uint8_t CHRINK = 16; 
constexpr uint8_t CHRPAPER = 17; 
constexpr uint8_t CHRFLASH = 18; 
constexpr uint8_t CHRBRIGHT = 19; 
constexpr uint8_t CHRINVERSE = 20; 
constexpr uint8_t CHROVER = 21; 
constexpr uint8_t CHRAT = 22; 
constexpr uint8_t CHRTAB = 23; 
constexpr uint8_t CHRFIRST = CHRSPC; 
constexpr uint8_t CHRQUOTE = 34; 
constexpr uint8_t CHR0 = 0x30; 
constexpr uint8_t CHRa = 0x61; 
constexpr uint8_t CHRz = 0x7a; 
constexpr uint8_t CHRA = 0x41; 
constexpr uint8_t CHRZ = 0x5a; 
constexpr uint8_t CHRINVALID = 63; 
constexpr uint8_t CHRLAST = 0x7F; 
constexpr uint8_t CHRCOPYRIGHT = 0x7F; 
constexpr uint8_t CHRPOUND = 0x60; 
constexpr uint8_t CHRFIRSTGB = 0x80; 
constexpr uint8_t CHRLASTGB = 0x8f; 
constexpr uint8_t CHRFIRSTUDG = 0x90; 
constexpr uint8_t CHRLASTUDG = 0xa4; 
constexpr uint8_t CHRFIRSTTOKEN = 0xa5; 
constexpr char ISCHRCTRL(uint8_t c) noexcept
    { return( ((c==CHRCOMMA)||(c==CHRENTER)||(c==CHRDELETE)||
               (c==CHRLEFT)||(c==CHRRIGHT)||(c==CHRDOWN)||(c==CHRUP)) ? 0:
                ( ((c==CHRINK)||(c==CHRPAPER)||(c==CHRFLASH)||(c==CHRBRIGHT)||
                   (c==CHRINVERSE)||(c==CHROVER)) ? 1:
                    ( ((c==CHRTAB) || (c==CHRAT)) ? 2 : -1 )
                )
              ); }
 
char ISCHRCTRLALL(uint8_t c) noexcept;
 
constexpr bool ISPRINTCHR(uint8_t c) noexcept
    { return( (c >= CHRFIRST) ); }
 
constexpr bool ISGRAPHICBLOCK(uint8_t c) noexcept
    { return((c >= CHRFIRSTGB) && (c <= CHRLASTGB)); }
 
constexpr bool ISUDG(uint8_t c) noexcept
    { return((c >= CHRFIRSTUDG) && (c <= CHRLASTUDG)); }
 
constexpr bool ISTOKEN(uint8_t c) noexcept
    { return(c >= CHRFIRSTTOKEN); }
 
 
 
/*****************************************************************************
*
*    Function: zxString
*
******************************************************************************/
 
inline std::string zxString(uint8_t cc)
    { return(std::string(1,cc)); }
 
inline std::string zxString(uint8_t cc, uint8_t arg1)
    { return(std::string(1,cc) + static_cast<char>(arg1)); }
 
inline std::string zxString(uint8_t cc, uint8_t arg1, uint8_t arg2)
    { return(std::string(1,cc) + static_cast<char>(arg1) +
                                 static_cast<char>(arg2)); }
 
 
/*****************************************************************************
*
*    Function: ctrlString
*
******************************************************************************/
 
const std::string & ctrlString(uint8_t c);
 
/*****************************************************************************
*
*    Function: nonCtrlString
*
******************************************************************************/
 
std::string nonCtrlString(const std::string & txt, char who = 'A');
 
} // end namespace zxeco
 
#endif
  // ZXChars