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Print.c
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186 lines (140 loc) · 4.08 KB
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/*
Print.c - Base class that provides print() and println()
Copyright (c) 2008 David A. Mellis. All right reserved.
The float functions are moved to a separate file Print-float.c. This way
we can keep the linker from pulling in all the float functions even when no
floats are used in the sketch.
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
Modified 23 November 2006 by David A. Mellis
Modified 03 August 2015 by Chuck Todd
Modified 30 December 2016 by Michael Mayer
*/
#ifdef _GCC_
#include <stdint.h>
#include <stdio.h>
#define PROGMEM
#endif
//#include <stdlib.h>
//#include <stdio.h>
//#include <string.h>
#include <math.h>
#include "Arduino.h"
#include "Print.h"
#ifdef _GCC_
#undef printChr
#define printChr(C) putchar(C)
#endif
void printNL(void);
// Public Methods //////////////////////////////////////////////////////////////
size_t Print_print_sn(writefunc_p writefunc, const uint8_t *buffer, size_t size)
{
size_t n = 0;
while (size--) {
if (writefunc(*buffer++)) n++;
else break;
}
return n;
}
size_t Print_print_s(writefunc_p writefunc, const char *str)
{
size_t n = 0;
char c;
if (!str) return 0;
while ( c=*str++ ) { // assignment intented
if (writefunc(c)) n++;
else break;
}
return n;
}
size_t Print_print_u(writefunc_p writefunc, unsigned long n)
{
return printNumber(writefunc, n,10);
}
size_t Print_print_i(writefunc_p writefunc, long n)
{
return printInt(writefunc, n,10);
}
// Variants of the above functions with an added newline //////////////////////
size_t Print_println_sn(writefunc_p writefunc, const uint8_t *buffer, size_t size)
{
size_t r;
r = Print_print_sn(writefunc, buffer, size);
return r + Print_println(writefunc);
}
size_t Print_println_s(writefunc_p writefunc, const char *str)
{
size_t r;
r = Print_print_s(writefunc, str);
return r + Print_println(writefunc);
}
size_t Print_println_u(writefunc_p writefunc, unsigned long n)
{
size_t r;
r = printNumber(writefunc, n,10);
return r + Print_println(writefunc);
}
size_t Print_println_i(writefunc_p writefunc, long n)
{
size_t r;
r = printInt(writefunc, n,10);
return r + Print_println(writefunc);
}
size_t Print_println_ub(writefunc_p writefunc, unsigned long n, uint8_t base)
{
size_t r;
r = printNumber(writefunc, n,base);
return r + Print_println(writefunc);
}
size_t Print_println_ib(writefunc_p writefunc, long n, uint8_t base)
{
size_t r;
r = printInt(writefunc, n,base);
return r + Print_println(writefunc);
}
// (not so) Private Methods /////////////////////////////////////////////////////////////
size_t Print_println(writefunc_p writefunc)
{
size_t n;
n = writefunc(13);
n += writefunc(10);
return n;
}
size_t Print_print_ub(writefunc_p writefunc, unsigned long n, uint8_t base)
{
char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
char *str = &buf[sizeof(buf) - 1];
*str = '\0';
// prevent crash if called with base == 1
if (base < 2) base = 10;
do {
char c = n % base;
n /= base;
*--str = c < 10 ? c + '0' : c + 'A' - 10;
} while(n);
return Print_print_s(writefunc, str);
}
size_t Print_print_ib(writefunc_p writefunc, long n, uint8_t base)
{
if (base == 0) {
return writefunc((unsigned char) n);
} else if (base == 10) {
if (n < 0) {
int t = writefunc('-');
n = -n;
return printNumber(writefunc, n, 10) + t;
}
return printNumber(writefunc, n, 10);
} else {
return printNumber(writefunc, n, base);
}
}