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mirror of https://github.com/DCC-EX/CommandStation-EX.git synced 2024-12-23 12:51:24 +01:00
CommandStation-EX/StringFormatter.cpp
2023-11-23 22:14:24 +01:00

259 lines
7.5 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>
#include "DisplayInterface.h"
#include "CommandDistributor.h"
bool Diag::ACK=false;
bool Diag::CMD=false;
bool Diag::WIFI=false;
bool Diag::WITHROTTLE=false;
bool Diag::ETHERNET=false;
bool Diag::LCN=false;
void StringFormatter::diag( const FSH* input...) {
USB_SERIAL.print(F("<* "));
va_list args;
va_start(args, input);
send2(&USB_SERIAL,input,args);
USB_SERIAL.print(F(" *>\n"));
}
void StringFormatter::lcd(byte row, const FSH* input...) {
va_list args;
#ifndef DISABLE_VDPY
Print * virtualLCD=CommandDistributor::getVirtualLCDSerial(0,row);
#else
Print * virtualLCD=NULL;
#endif
// Issue the LCD as a diag first
// Unless the same serial is asking for the virtual @ respomnse
if (virtualLCD!=&USB_SERIAL) {
send(&USB_SERIAL,F("<* LCD%d:"),row);
va_start(args, input);
send2(&USB_SERIAL,input,args);
send(&USB_SERIAL,F(" *>\n"));
}
#ifndef DISABLE_VDPY
// send to virtual LCD collector (if any)
if (virtualLCD) {
va_start(args, input);
send2(virtualLCD,input,args);
CommandDistributor::commitVirtualLCDSerial();
}
#endif
DisplayInterface::setRow(row);
va_start(args, input);
send2(DisplayInterface::getDisplayHandler(),input,args);
}
void StringFormatter::lcd2(uint8_t display, byte row, const FSH* input...) {
va_list args;
// send to virtual LCD collector (if any)
#ifndef DISABLE_VDPY
Print * virtualLCD=CommandDistributor::getVirtualLCDSerial(display,row);
if (virtualLCD) {
va_start(args, input);
send2(virtualLCD,input,args);
CommandDistributor::commitVirtualLCDSerial();
}
#endif
DisplayInterface::setRow(display, row);
va_start(args, input);
send2(DisplayInterface::getDisplayHandler(),input,args);
}
void StringFormatter::send(Print * stream, const FSH* input...) {
va_list args;
va_start(args, input);
send2(stream,input,args);
}
void StringFormatter::send(Print & stream, const FSH* input...) {
va_list args;
va_start(args, input);
send2(&stream,input,args);
}
void StringFormatter::send2(Print * stream,const FSH* 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=GETFLASH(flash+i);
if (c=='\0') break; // to va_end()
if(c!='%') { stream->print(c); continue; }
bool formatContinues=false;
byte formatWidth=0;
bool formatLeft=false;
do {
formatContinues=false;
i++;
c=GETFLASH(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 FSH*)va_arg(args, char*)); break;
case 'S':
{
const FSH* flash= (const FSH*)va_arg(args, char*);
#if WIFI_ON | ETHERNET_ON
// RingStream has special logic to handle flash strings
// but is not implemented unless wifi or ethernet are enabled.
// The define prevents RingStream code being added unnecessariliy.
if (stream->availableForWrite()==RingStream::THIS_IS_A_RINGSTREAM)
((RingStream *)stream)->printFlash(flash);
else
#endif
stream->print(flash);
break;
}
case 'P': stream->print((uint32_t)va_arg(args, void*), HEX); break;
case 'd': printPadded(stream,va_arg(args, int), formatWidth, formatLeft); break;
case 'u': printPadded(stream,va_arg(args, unsigned int), formatWidth, formatLeft); break;
case 'l': printPadded(stream,va_arg(args, long), formatWidth, formatLeft); 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((unsigned int)va_arg(args, unsigned int), HEX); break;
case 'X': stream->print((unsigned long)va_arg(args, unsigned long), HEX); break;
case 'h': printHex(stream,(unsigned int)va_arg(args, unsigned int)); break;
case 'M':
{ // this prints a unsigned long microseconds time in readable format
unsigned long time = va_arg(args, long);
if (time >= 2000) {
time = time / 1000;
if (time >= 2000) {
printPadded(stream, time/1000, formatWidth, formatLeft);
stream->print(F("sec"));
} else {
printPadded(stream,time, formatWidth, formatLeft);
stream->print(F("msec"));
}
} else {
printPadded(stream,time, formatWidth, formatLeft);
stream->print(F("usec"));
}
}
break;
//case 'f': stream->print(va_arg(args, double), 2); break;
//format width prefix
case '-':
formatLeft=true;
formatContinues=true;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
formatWidth=formatWidth * 10 + (c-'0');
formatContinues=true;
break;
}
} while(formatContinues);
}
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::printEscapes(Print * stream, const FSH * input) {
if (!stream) return;
char* flash=(char*)input;
for(int i=0; ; ++i) {
char c=GETFLASH(flash+i);
printEscape(stream,c);
if (c=='\0') return;
}
}
void StringFormatter::printEscape( char c) {
printEscape(&USB_SERIAL,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->write(c);
}
}
void StringFormatter::printPadded(Print* stream, long value, byte width, bool formatLeft) {
if (width==0) {
stream->print(value, DEC);
return;
}
int digits=(value <= 0)? 1: 0; // zero and negative need extra digot
long v=value;
while (v) {
v /= 10;
digits++;
}
if (formatLeft) stream->print(value, DEC);
while(digits<width) {
stream->print(' ');
digits++;
}
if (!formatLeft) stream->print(value, DEC);
}
// printHex prints the full 2 byte hex with leading zeros, unlike print(value,HEX)
const char FLASH hexchars[]="0123456789ABCDEF";
void StringFormatter::printHex(Print * stream,uint16_t value) {
char result[5];
for (int i=3;i>=0;i--) {
result[i]=GETFLASH(hexchars+(value & 0x0F));
value>>=4;
}
result[4]='\0';
stream->print(result);
}