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add StreamString class (implement the Stream interface for String)

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This commit is contained in:
Markus Sattler 2015-11-25 12:33:33 +01:00
parent fd19d90709
commit 8b67051d1e
2 changed files with 108 additions and 0 deletions
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68
cores/esp8266/StreamString.cpp Normal file
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/**
StreamString.cpp
Copyright (c) 2015 Markus Sattler. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <Arduino.h>
#include "StreamString.h"
size_t StreamString::write(const uint8_t *buffer, size_t size) {
if(reserve(length() + size + 1)) {
for(size_t i = 0; i < size; i++) {
if(write(*buffer)) {
buffer++;
} else {
return i;
}
}
}
return 0;
}
size_t StreamString::write(uint8_t data) {
return concat((char) data);
}
int StreamString::available() {
return length();
}
int StreamString::read() {
if(length()) {
char c = charAt(0);
remove(0, 1);
return c;
}
return -1;
}
int StreamString::peek() {
if(length()) {
char c = charAt(0);
return c;
}
return -1;
}
void StreamString::flush() {
}

40
cores/esp8266/StreamString.h Normal file
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/**
StreamString.h
Copyright (c) 2015 Markus Sattler. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef STREAMSTRING_H_
#define STREAMSTRING_H_
class StreamString: public Stream, public String {
size_t write(const uint8_t *buffer, size_t size);
size_t write(uint8_t data);
int available();
int read();
int peek();
void flush();
};
#endif /* STREAMSTRING_H_ */