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| 1 | +/* |
| 2 | + Copyright (c) 2016 Arduino LLC. All right reserved. |
| 3 | +
|
| 4 | + This library is free software; you can redistribute it and/or |
| 5 | + modify it under the terms of the GNU Lesser General Public |
| 6 | + License as published by the Free Software Foundation; either |
| 7 | + version 2.1 of the License, or (at your option) any later version. |
| 8 | +
|
| 9 | + This library is distributed in the hope that it will be useful, |
| 10 | + but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 12 | + See the GNU Lesser General Public License for more details. |
| 13 | +
|
| 14 | + You should have received a copy of the GNU Lesser General Public |
| 15 | + License along with this library; if not, write to the Free Software |
| 16 | + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | +*/ |
| 18 | + |
| 19 | +#pragma once |
| 20 | + |
| 21 | +#include <inttypes.h> |
| 22 | +#include <stdio.h> // for size_t |
| 23 | + |
| 24 | +#include "WString.h" |
| 25 | +#include "Printable.h" |
| 26 | + |
| 27 | +#define DEC 10 |
| 28 | +#define HEX 16 |
| 29 | +#define OCT 8 |
| 30 | +#define BIN 2 |
| 31 | + |
| 32 | +class Print |
| 33 | +{ |
| 34 | + private: |
| 35 | + int write_error; |
| 36 | + size_t printNumber(unsigned long, uint8_t); |
| 37 | + size_t printULLNumber(unsigned long long, uint8_t); |
| 38 | + size_t printFloat(double, int); |
| 39 | + protected: |
| 40 | + void setWriteError(int err = 1) { write_error = err; } |
| 41 | + public: |
| 42 | + Print() : write_error(0) {} |
| 43 | + |
| 44 | + int getWriteError() { return write_error; } |
| 45 | + void clearWriteError() { setWriteError(0); } |
| 46 | + |
| 47 | + virtual size_t write(uint8_t) = 0; |
| 48 | + size_t write(const char *str) { |
| 49 | + if (str == NULL) return 0; |
| 50 | + return write((const uint8_t *)str, strlen(str)); |
| 51 | + } |
| 52 | + virtual size_t write(const uint8_t *buffer, size_t size); |
| 53 | + size_t write(const char *buffer, size_t size) { |
| 54 | + return write((const uint8_t *)buffer, size); |
| 55 | + } |
| 56 | + |
| 57 | + // default to zero, meaning "a single write may block" |
| 58 | + // should be overridden by subclasses with buffering |
| 59 | + virtual int availableForWrite() { return 0; } |
| 60 | + |
| 61 | + size_t print(const __FlashStringHelper *); |
| 62 | + size_t print(const String &); |
| 63 | + size_t print(const char[]); |
| 64 | + size_t print(char); |
| 65 | + size_t print(unsigned char, int = DEC); |
| 66 | + size_t print(int, int = DEC); |
| 67 | + size_t print(unsigned int, int = DEC); |
| 68 | + size_t print(long, int = DEC); |
| 69 | + size_t print(unsigned long, int = DEC); |
| 70 | + size_t print(long long, int = DEC); |
| 71 | + size_t print(unsigned long long, int = DEC); |
| 72 | + size_t print(double, int = 2); |
| 73 | + size_t print(const Printable&); |
| 74 | + |
| 75 | + size_t println(const __FlashStringHelper *); |
| 76 | + size_t println(const String &s); |
| 77 | + size_t println(const char[]); |
| 78 | + size_t println(char); |
| 79 | + size_t println(unsigned char, int = DEC); |
| 80 | + size_t println(int, int = DEC); |
| 81 | + size_t println(unsigned int, int = DEC); |
| 82 | + size_t println(long, int = DEC); |
| 83 | + size_t println(unsigned long, int = DEC); |
| 84 | + size_t println(long long, int = DEC); |
| 85 | + size_t println(unsigned long long, int = DEC); |
| 86 | + size_t println(double, int = 2); |
| 87 | + size_t println(const Printable&); |
| 88 | + size_t println(void); |
| 89 | + |
| 90 | + size_t printf(const char * format, ...); |
| 91 | + |
| 92 | + size_t printBuffer(uint8_t const buffer[], int len, char delim=' ', int byteline = 0); |
| 93 | + size_t printBuffer(char const buffer[], int size, char delim=' ', int byteline = 0) |
| 94 | + { |
| 95 | + return printBuffer((uint8_t const*) buffer, size, delim, byteline); |
| 96 | + } |
| 97 | + |
| 98 | + size_t printBufferReverse(uint8_t const buffer[], int len, char delim=' ', int byteline = 0); |
| 99 | + size_t printBufferReverse(char const buffer[], int size, char delim=' ', int byteline = 0) |
| 100 | + { |
| 101 | + return printBufferReverse((uint8_t const*) buffer, size, delim, byteline); |
| 102 | + } |
| 103 | + |
| 104 | + virtual void flush() { /* Empty implementation for backward compatibility */ } |
| 105 | +}; |
| 106 | + |
| 107 | + |
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