Switch to cmake build system
* use tinyprintf * ability to configure project via ccmake Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>
This commit is contained in:
Amir Hammad
parent
28ccd32608
commit
ed70a1efa3
19 changed files with 1001 additions and 370 deletions
521
src/tinyprintf.c
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521
src/tinyprintf.c
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/*
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File: tinyprintf.c
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Copyright (C) 2004 Kustaa Nyholm
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tinyprintf.h"
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/*
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* Configuration
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*/
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/* Enable long int support */
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#define PRINTF_LONG_SUPPORT
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/* Enable long long int support (implies long int support) */
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#define PRINTF_LONG_LONG_SUPPORT
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/* Enable %z (size_t) support */
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#define PRINTF_SIZE_T_SUPPORT
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/*
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* Configuration adjustments
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*/
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#ifdef PRINTF_SIZE_T_SUPPORT
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#include <sys/types.h>
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#endif
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#ifdef PRINTF_LONG_LONG_SUPPORT
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# define PRINTF_LONG_SUPPORT
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#endif
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/* __SIZEOF_<type>__ defined at least by gcc */
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#ifdef __SIZEOF_POINTER__
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# define SIZEOF_POINTER __SIZEOF_POINTER__
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#endif
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#ifdef __SIZEOF_LONG_LONG__
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# define SIZEOF_LONG_LONG __SIZEOF_LONG_LONG__
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#endif
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#ifdef __SIZEOF_LONG__
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# define SIZEOF_LONG __SIZEOF_LONG__
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#endif
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#ifdef __SIZEOF_INT__
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# define SIZEOF_INT __SIZEOF_INT__
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#endif
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#ifdef __GNUC__
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# define _TFP_GCC_NO_INLINE_ __attribute__ ((noinline))
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#else
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# define _TFP_GCC_NO_INLINE_
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#endif
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/*
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* Implementation
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*/
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struct param {
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char lz:1; /**< Leading zeros */
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char alt:1; /**< alternate form */
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char uc:1; /**< Upper case (for base16 only) */
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char align_left:1; /**< 0 == align right (default), 1 == align left */
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unsigned int width; /**< field width */
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char sign; /**< The sign to display (if any) */
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unsigned int base; /**< number base (e.g.: 8, 10, 16) */
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char *bf; /**< Buffer to output */
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};
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#ifdef PRINTF_LONG_LONG_SUPPORT
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static void _TFP_GCC_NO_INLINE_ ulli2a(
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unsigned long long int num, struct param *p)
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{
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int n = 0;
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unsigned long long int d = 1;
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char *bf = p->bf;
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while (num / d >= p->base)
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d *= p->base;
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while (d != 0) {
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int dgt = num / d;
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num %= d;
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d /= p->base;
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if (n || dgt > 0 || d == 0) {
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*bf++ = dgt + (dgt < 10 ? '0' : (p->uc ? 'A' : 'a') - 10);
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++n;
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}
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}
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*bf = 0;
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}
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static void lli2a(long long int num, struct param *p)
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{
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if (num < 0) {
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num = -num;
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p->sign = '-';
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}
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ulli2a(num, p);
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}
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#endif
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#ifdef PRINTF_LONG_SUPPORT
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static void uli2a(unsigned long int num, struct param *p)
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{
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int n = 0;
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unsigned long int d = 1;
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char *bf = p->bf;
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while (num / d >= p->base)
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d *= p->base;
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while (d != 0) {
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int dgt = num / d;
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num %= d;
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d /= p->base;
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if (n || dgt > 0 || d == 0) {
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*bf++ = dgt + (dgt < 10 ? '0' : (p->uc ? 'A' : 'a') - 10);
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++n;
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}
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}
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*bf = 0;
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}
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static void li2a(long num, struct param *p)
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{
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if (num < 0) {
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num = -num;
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p->sign = '-';
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}
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uli2a(num, p);
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}
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#endif
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static void ui2a(unsigned int num, struct param *p)
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{
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int n = 0;
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unsigned int d = 1;
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char *bf = p->bf;
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while (num / d >= p->base)
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d *= p->base;
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while (d != 0) {
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int dgt = num / d;
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num %= d;
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d /= p->base;
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if (n || dgt > 0 || d == 0) {
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*bf++ = dgt + (dgt < 10 ? '0' : (p->uc ? 'A' : 'a') - 10);
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++n;
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}
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}
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*bf = 0;
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}
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static void i2a(int num, struct param *p)
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{
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if (num < 0) {
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num = -num;
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p->sign = '-';
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}
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ui2a(num, p);
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}
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static int a2d(char ch)
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{
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if (ch >= '0' && ch <= '9')
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return ch - '0';
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else if (ch >= 'a' && ch <= 'f')
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return ch - 'a' + 10;
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else if (ch >= 'A' && ch <= 'F')
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return ch - 'A' + 10;
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else
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return -1;
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}
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static char a2u(char ch, const char **src, int base, unsigned int *nump)
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{
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const char *p = *src;
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unsigned int num = 0;
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int digit;
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while ((digit = a2d(ch)) >= 0) {
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if (digit > base)
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break;
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num = num * base + digit;
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ch = *p++;
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}
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*src = p;
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*nump = num;
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return ch;
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}
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static void putchw(void *putp, putcf putf, struct param *p)
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{
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char ch;
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int n = p->width;
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char *bf = p->bf;
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/* Number of filling characters */
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while (*bf++ && n > 0)
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n--;
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if (p->sign)
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n--;
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if (p->alt && p->base == 16)
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n -= 2;
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else if (p->alt && p->base == 8)
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n--;
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/* Fill with space to align to the right, before alternate or sign */
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if (!p->lz && !p->align_left) {
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while (n-- > 0)
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putf(putp, ' ');
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}
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/* print sign */
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if (p->sign)
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putf(putp, p->sign);
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/* Alternate */
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if (p->alt && p->base == 16) {
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putf(putp, '0');
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putf(putp, (p->uc ? 'X' : 'x'));
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} else if (p->alt && p->base == 8) {
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putf(putp, '0');
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}
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/* Fill with zeros, after alternate or sign */
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if (p->lz) {
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while (n-- > 0)
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putf(putp, '0');
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}
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/* Put actual buffer */
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bf = p->bf;
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while ((ch = *bf++))
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putf(putp, ch);
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/* Fill with space to align to the left, after string */
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if (!p->lz && p->align_left) {
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while (n-- > 0)
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putf(putp, ' ');
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}
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}
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void tfp_format(void *putp, putcf putf, const char *fmt, va_list va)
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{
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struct param p;
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#ifdef PRINTF_LONG_SUPPORT
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char bf[23]; /* long = 64b on some architectures */
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#else
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char bf[12]; /* int = 32b on some architectures */
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#endif
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char ch;
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p.bf = bf;
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while ((ch = *(fmt++))) {
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if (ch != '%') {
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putf(putp, ch);
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} else {
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#ifdef PRINTF_LONG_SUPPORT
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char lng = 0; /* 1 for long, 2 for long long */
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#endif
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/* Init parameter struct */
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p.lz = 0;
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p.alt = 0;
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p.width = 0;
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p.align_left = 0;
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p.sign = 0;
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/* Flags */
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while ((ch = *(fmt++))) {
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switch (ch) {
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case '-':
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p.align_left = 1;
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continue;
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case '0':
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p.lz = 1;
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continue;
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case '#':
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p.alt = 1;
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continue;
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default:
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break;
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}
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break;
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}
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/* Width */
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if (ch >= '0' && ch <= '9') {
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ch = a2u(ch, &fmt, 10, &(p.width));
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}
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/* We accept 'x.y' format but don't support it completely:
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* we ignore the 'y' digit => this ignores 0-fill
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* size and makes it == width (ie. 'x') */
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if (ch == '.') {
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p.lz = 1; /* zero-padding */
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/* ignore actual 0-fill size: */
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do {
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ch = *(fmt++);
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} while ((ch >= '0') && (ch <= '9'));
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}
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#ifdef PRINTF_SIZE_T_SUPPORT
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# ifdef PRINTF_LONG_SUPPORT
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if (ch == 'z') {
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ch = *(fmt++);
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if (sizeof(size_t) == sizeof(unsigned long int))
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lng = 1;
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# ifdef PRINTF_LONG_LONG_SUPPORT
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else if (sizeof(size_t) == sizeof(unsigned long long int))
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lng = 2;
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# endif
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} else
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# endif
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#endif
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#ifdef PRINTF_LONG_SUPPORT
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if (ch == 'l') {
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ch = *(fmt++);
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lng = 1;
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#ifdef PRINTF_LONG_LONG_SUPPORT
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if (ch == 'l') {
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ch = *(fmt++);
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lng = 2;
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}
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#endif
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}
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#endif
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switch (ch) {
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case 0:
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goto abort;
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case 'u':
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p.base = 10;
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#ifdef PRINTF_LONG_SUPPORT
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#ifdef PRINTF_LONG_LONG_SUPPORT
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if (2 == lng)
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ulli2a(va_arg(va, unsigned long long int), &p);
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else
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#endif
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if (1 == lng)
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uli2a(va_arg(va, unsigned long int), &p);
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else
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#endif
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ui2a(va_arg(va, unsigned int), &p);
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putchw(putp, putf, &p);
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break;
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case 'd':
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case 'i':
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p.base = 10;
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#ifdef PRINTF_LONG_SUPPORT
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#ifdef PRINTF_LONG_LONG_SUPPORT
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if (2 == lng)
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lli2a(va_arg(va, long long int), &p);
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else
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#endif
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if (1 == lng)
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li2a(va_arg(va, long int), &p);
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else
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#endif
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i2a(va_arg(va, int), &p);
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putchw(putp, putf, &p);
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break;
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#ifdef SIZEOF_POINTER
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case 'p':
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p.alt = 1;
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# if defined(SIZEOF_INT) && SIZEOF_POINTER <= SIZEOF_INT
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lng = 0;
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# elif defined(SIZEOF_LONG) && SIZEOF_POINTER <= SIZEOF_LONG
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lng = 1;
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# elif defined(SIZEOF_LONG_LONG) && SIZEOF_POINTER <= SIZEOF_LONG_LONG
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lng = 2;
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# endif
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#endif
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case 'x':
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case 'X':
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p.base = 16;
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p.uc = (ch == 'X')?1:0;
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#ifdef PRINTF_LONG_SUPPORT
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#ifdef PRINTF_LONG_LONG_SUPPORT
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if (2 == lng)
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ulli2a(va_arg(va, unsigned long long int), &p);
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else
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#endif
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if (1 == lng)
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uli2a(va_arg(va, unsigned long int), &p);
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else
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#endif
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ui2a(va_arg(va, unsigned int), &p);
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putchw(putp, putf, &p);
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break;
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case 'o':
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p.base = 8;
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ui2a(va_arg(va, unsigned int), &p);
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putchw(putp, putf, &p);
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break;
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case 'c':
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putf(putp, (char)(va_arg(va, int)));
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break;
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case 's':
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p.bf = va_arg(va, char *);
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putchw(putp, putf, &p);
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p.bf = bf;
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break;
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case '%':
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putf(putp, ch);
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default:
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break;
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}
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}
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}
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abort:;
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}
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#if TINYPRINTF_DEFINE_TFP_PRINTF
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static putcf stdout_putf;
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static void *stdout_putp;
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void init_printf(void *putp, putcf putf)
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{
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stdout_putf = putf;
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stdout_putp = putp;
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}
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void tfp_printf(char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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tfp_format(stdout_putp, stdout_putf, fmt, va);
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va_end(va);
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}
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#endif
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#if TINYPRINTF_DEFINE_TFP_SPRINTF
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struct _vsnprintf_putcf_data
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{
|
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size_t dest_capacity;
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char *dest;
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size_t num_chars;
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};
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static void _vsnprintf_putcf(void *p, char c)
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{
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struct _vsnprintf_putcf_data *data = (struct _vsnprintf_putcf_data*)p;
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if (data->num_chars < data->dest_capacity)
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data->dest[data->num_chars] = c;
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data->num_chars ++;
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}
|
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|
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int tfp_vsnprintf(char *str, size_t size, const char *format, va_list ap)
|
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{
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struct _vsnprintf_putcf_data data;
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|
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if (size < 1)
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return 0;
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|
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data.dest = str;
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data.dest_capacity = size-1;
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data.num_chars = 0;
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tfp_format(&data, _vsnprintf_putcf, format, ap);
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|
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if (data.num_chars < data.dest_capacity)
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data.dest[data.num_chars] = '\0';
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else
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data.dest[data.dest_capacity] = '\0';
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|
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return data.num_chars;
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}
|
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|
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int tfp_snprintf(char *str, size_t size, const char *format, ...)
|
||||
{
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||||
va_list ap;
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int retval;
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|
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va_start(ap, format);
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retval = tfp_vsnprintf(str, size, format, ap);
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va_end(ap);
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return retval;
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||||
}
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||||
|
||||
struct _vsprintf_putcf_data
|
||||
{
|
||||
char *dest;
|
||||
size_t num_chars;
|
||||
};
|
||||
|
||||
static void _vsprintf_putcf(void *p, char c)
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||||
{
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struct _vsprintf_putcf_data *data = (struct _vsprintf_putcf_data*)p;
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||||
data->dest[data->num_chars++] = c;
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||||
}
|
||||
|
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int tfp_vsprintf(char *str, const char *format, va_list ap)
|
||||
{
|
||||
struct _vsprintf_putcf_data data;
|
||||
data.dest = str;
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||||
data.num_chars = 0;
|
||||
tfp_format(&data, _vsprintf_putcf, format, ap);
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||||
data.dest[data.num_chars] = '\0';
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||||
return data.num_chars;
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||||
}
|
||||
|
||||
int tfp_sprintf(char *str, const char *format, ...)
|
||||
{
|
||||
va_list ap;
|
||||
int retval;
|
||||
|
||||
va_start(ap, format);
|
||||
retval = tfp_vsprintf(str, format, ap);
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||||
va_end(ap);
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||||
return retval;
|
||||
}
|
||||
#endif
|
||||
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Reference in a new issue