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mirror of https://github.com/DCC-EX/CommandStation-EX.git synced 2024-11-23 16:16:13 +01:00
CommandStation-EX/StringFormatter.cpp
Asbelos 39d9defec6 Improved <D> commands
<D ACK 1|0>
<D WIFI 1|0>
<D WIT 1|0>
<D CMD 1|0>
<D CABS>
<D RAM>
2020-09-10 13:09:32 +01:00

113 lines
3.5 KiB
C++

/*
* © 2020, Chris Harlow. All rights reserved.
*
* This file is part of Asbelos DCC API
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#include "StringFormatter.h"
#include <stdarg.h>
#if defined(ARDUINO_ARCH_SAMD)
// Some processors use a gcc compiler that renames va_list!!!
#include <cstdarg>
Print * StringFormatter::diagSerial= &SerialUSB;
#elif defined(ARDUINO_ARCH_AVR)
Print * StringFormatter::diagSerial= &Serial;
#elif defined(ARDUINO_ARCH_MEGAAVR)
Print * StringFormatter::diagSerial=&Serial;
#define __FlashStringHelper char
#endif
bool Diag::ACK=false;
bool Diag::CMD=false;
bool Diag::WIFI=false;
bool Diag::WITHROTTLE=false;
void StringFormatter::diag( const __FlashStringHelper* input...) {
if (!diagSerial) return;
va_list args;
va_start(args, input);
send2(diagSerial,input,args);
}
void StringFormatter::send(Print * stream, const __FlashStringHelper* input...) {
va_list args;
va_start(args, input);
send2(stream,input,args);
}
void StringFormatter::send(Print & stream, const __FlashStringHelper* input...) {
va_list args;
va_start(args, input);
send2(&stream,input,args);
}
void StringFormatter::send2(Print * stream,const __FlashStringHelper* format, va_list args) {
// thanks to Jan Turoň https://arduino.stackexchange.com/questions/56517/formatting-strings-in-arduino-for-output
char* flash=(char*)format;
for(int i=0; ; ++i) {
char c=pgm_read_byte_near(flash+i);
if (c=='\0') return;
if(c!='%') { stream->print(c); continue; }
i++;
c=pgm_read_byte_near(flash+i);
switch(c) {
case '%': stream->print('%'); break;
case 'c': stream->print((char) va_arg(args, int)); break;
case 's': stream->print(va_arg(args, char*)); break;
case 'e': printEscapes(stream,va_arg(args, char*)); break;
case 'S': stream->print((const __FlashStringHelper*)va_arg(args, char*)); break;
case 'd': stream->print(va_arg(args, int), DEC); break;
case 'l': stream->print(va_arg(args, long), DEC); break;
case 'b': stream->print(va_arg(args, int), BIN); break;
case 'o': stream->print(va_arg(args, int), OCT); break;
case 'x': stream->print(va_arg(args, int), HEX); break;
case 'f': stream->print(va_arg(args, double), 2); break;
}
}
va_end(args);
}
void StringFormatter::printEscapes(Print * stream,char * input) {
if (!stream) return;
for(int i=0; ; ++i) {
char c=input[i];
printEscape(stream,c);
if (c=='\0') return;
}
}
void StringFormatter::printEscape( char c) {
printEscape(diagSerial,c);
}
void StringFormatter::printEscape(Print * stream, char c) {
if (!stream) return;
switch(c) {
case '\n': stream->print(F("\\n")); break;
case '\r': stream->print(F("\\r")); break;
case '\0': stream->print(F("\\0")); return;
case '\t': stream->print(F("\\t")); break;
case '\\': stream->print(F("\\")); break;
default: stream->print(c);
}
}