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https://github.com/RobTillaart/Arduino.git
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53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
#pragma once
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//
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// FILE: Soundex.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.2
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// DATE: 2022-02-05
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// PURPOSE: Arduino Library for calculating Soundex hash
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// URL: https://github.com/RobTillaart/Soundex
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//
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// HISTORY
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// 0.1.0 2011-05-20 stand alone application
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// 0.1.1 2022-02-05 initial library version
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// 0.1.2 2022-02-06 added soundex16(), soundex32()
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#include "Arduino.h"
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#define SOUNDEX_LIB_VERSION (F("0.1.2"))
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#define SOUNDEX_MIN_LENGTH 4
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#define SOUNDEX_MAX_LENGTH 12
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class Soundex
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{
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public:
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Soundex();
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void setLength(uint8_t length = 4);
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uint8_t getLength() { return _length; };
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char * soundex(const char * str); // Russel and Odell
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uint16_t soundex16(const char * str); // Russel and Odell len=5
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uint32_t soundex32(const char * str); // Russel and Odell len=10
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private:
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char _buffer[SOUNDEX_MAX_LENGTH];
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uint8_t _length;
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// This array can be made smaller (less RAM)
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// - encode in nibbles. (13 bytes instead of 26) => more code, performance?
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// 0x01, 0x23, 0x01 etc.
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uint8_t sdx[26] = {0,1,2,3,0,1,2,0,0,2,2,4,5,5,0,1,2,6,2,3,0,1,0,2,0,2 };
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};
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// -- END OF FILE --
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