70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#if !defined(_RADIOLIB_ITA2_STRING_H)
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#define _RADIOLIB_ITA2_STRING_H
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#include "../../TypeDef.h"
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#define RADIOLIB_ITA2_FIGS 0x1B
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#define RADIOLIB_ITA2_LTRS 0x1F
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#define RADIOLIB_ITA2_LENGTH 32
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// ITA2 character table: - position in array corresponds to 5-bit ITA2 code
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// - characters to the left are in letters shift, characters to the right in figures shift
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// - characters marked 0x7F do not have ASCII equivalent
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static const char ITA2Table[RADIOLIB_ITA2_LENGTH][2] RADIOLIB_NONVOLATILE = {
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{'\0', '\0'}, {'E', '3'}, {'\n', '\n'}, {'A', '-'}, {' ', ' '}, {'S', '\''}, {'I', '8'}, {'U', '7'},
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{'\r', '\r'}, {'D', 0x05}, {'R', '4'}, {'J', '\a'}, {'N', ','}, {'F', '!'}, {'C', ':'}, {'K', '('},
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{'T', '5'}, {'Z', '+'}, {'L', ')'}, {'W', '2'}, {'H', 0x7F}, {'Y', '6'}, {'P', '0'}, {'Q', '1'},
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{'O', '9'}, {'B', '?'}, {'G', '&'}, {0x7F, 0x7F}, {'M', '.'}, {'X', '/'}, {'V', ';'}, {0x7F, 0x7F}
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};
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/*!
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\class ITA2String
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\brief ITA2-encoded string.
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*/
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class ITA2String {
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public:
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/*!
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\brief Default single-character constructor.
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\param c ASCII-encoded character to encode as ITA2.
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*/
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ITA2String(char c);
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/*!
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\brief Default string constructor.
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\param str ASCII-encoded string to encode as ITA2.
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*/
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ITA2String(const char* str);
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/*!
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\brief Default destructor.
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*/
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~ITA2String();
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/*!
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\brief Gets the length of the ITA2 string. This number is not the same as the length of ASCII-encoded string!
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\returns Length of ITA2-encoded string.
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*/
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size_t length();
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/*!
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\brief Gets the ITA2 representation of the ASCII string set in constructor.
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\returns Pointer to dynamically allocated array, which contains ITA2-encoded bytes.
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It is the caller's responsibility to deallocate this memory!
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*/
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uint8_t* byteArr();
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#if !defined(RADIOLIB_GODMODE)
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private:
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#endif
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#if defined(RADIOLIB_STATIC_ONLY)
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char strAscii[RADIOLIB_STATIC_ARRAY_SIZE];
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#else
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char* strAscii;
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#endif
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size_t asciiLen;
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size_t ita2Len;
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static uint16_t getBits(char c);
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};
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#endif
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