mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-30 03:26:13 +01:00
89 lines
2.9 KiB
C++
89 lines
2.9 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>
|
|
|
|
|
|
void StringFormatter::print( const __FlashStringHelper* input...) {
|
|
va_list args;
|
|
va_start(args, input);
|
|
send2(Serial,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 'E': printEscapes(stream,(const __FlashStringHelper*)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 '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) {
|
|
for(int i=0; ; ++i) {
|
|
char c=input[i];
|
|
printEscape(stream,c);
|
|
if (c=='\0') return;
|
|
}
|
|
}
|
|
void StringFormatter::printEscapes(Print & stream, const __FlashStringHelper* input) {
|
|
char* flash=(char*)input;
|
|
for(int i=0; ; ++i) {
|
|
char c=pgm_read_byte_near(flash+i);
|
|
printEscape(stream,c);
|
|
if (c=='\0') return;
|
|
}
|
|
}
|
|
void StringFormatter::printEscape(Print & stream, char c) {
|
|
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);
|
|
}
|
|
}
|
|
|