AceCommon  1.5.2
Arduino library for low-level common functions and features with no external dependencies
backslash_x_encoding.h
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1 /*
2 MIT License
3 
4 Copyright (c) 2022 Brian T. Park
5 
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
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13 The above copyright notice and this permission notice shall be included in all
14 copies or substantial portions of the Software.
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16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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22 SOFTWARE.
23 */
24 
33 #ifndef ACE_COMMON_BACKSLASH_X_ENCODING_H
34 #define ACE_COMMON_BACKSLASH_X_ENCODING_H
35 
36 #include <stddef.h> // size_t
37 #include <stdint.h> // uint8_t
38 
39 namespace ace_common {
40 
53 uint8_t backslashXEncode(char* t, size_t tcap, const char* s, size_t* written);
54 
68 uint8_t backslashXDecode(char* t, size_t tcap, const char* s, size_t* written);
69 
71 inline bool isHexChar(char c) {
72  return (c >= '0' && c <= '9')
73  || (c >= 'a' && c <= 'f')
74  || (c >= 'A' && c <= 'F');
75 }
76 
77 }
78 
79 #endif
bool isHexChar(char c)
Return true if 'c' is a hex character [0-9a-fA-F].