diff options
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/qprintf.c.svn-base')
| -rw-r--r-- | oncology/dpfhack_display/lcd4linux/.svn/text-base/qprintf.c.svn-base | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/qprintf.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/qprintf.c.svn-base deleted file mode 100644 index 2cba4b72..00000000 --- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/qprintf.c.svn-base +++ /dev/null @@ -1,260 +0,0 @@ -/* $Id$ - * $URL$ - * - * simple but quick snprintf() replacement - * - * Copyright (C) 2004 Michael Reinelt <michael@reinelt.co.at> - * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> - * - * derived from a patch from Martin Hejl which is - * Copyright (C) 2003 Martin Hejl (martin@hejl.de) - * - * This file is part of LCD4Linux. - * - * LCD4Linux 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 2, or (at your option) - * any later version. - * - * LCD4Linux 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 this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -/* - * exported functions: - * - * int qprintf(char *str, size_t size, const char *format, ...) - * works like snprintf(), but format only knows about %d, %x, %u and %s - * and for the numbers an optional length like %<len>d. If <len> beginns - * with '0' the free space is filled with '0's, otherwise with ' ' - */ - - -#include "config.h" - -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> -#include <string.h> - -static char *itoa(char *buffer, const size_t size, int value, unsigned int fixedlen, unsigned int fill0) -{ - char *p; - int sign; - - /* sanity checks */ - if (buffer == NULL || size < 2) - return (NULL); - - /* remember sign of value */ - sign = 0; - if (value < 0) { - sign = 1; - if (fill0) - fixedlen -= 1; - value = -value; - } - - /* p points to last char */ - p = buffer + size - 1; - - /* set terminating zero */ - *p = '\0'; - - do { - *--p = value % 10 + '0'; - value = value / 10; - } while (value != 0 && p > buffer); - - if (sign && !fill0 && p > buffer) - *--p = '-'; - - /* fill fixed length */ - while (p > buffer && strlen(p) < fixedlen) { - if (fill0) { - *--p = '0'; - } else { - *--p = ' '; - } - } - - if (sign && fill0 && p > buffer) - *--p = '-'; - - return p; -} - - -static char *utoa(char *buffer, const size_t size, unsigned int value, unsigned int fixedlen, unsigned int fill0) -{ - char *p; - - /* sanity checks */ - if (buffer == NULL || size < 2) - return (NULL); - - /* p points to last char */ - p = buffer + size - 1; - - /* set terminating zero */ - *p = '\0'; - - do { - *--p = value % 10 + '0'; - value = value / 10; - } while (value != 0 && p > buffer); - - /* fill fixed length */ - while (p > buffer && strlen(p) < fixedlen) { - if (fill0) { - *--p = '0'; - } else { - *--p = ' '; - } - } - - return p; -} - - -static char *utox(char *buffer, const size_t size, unsigned int value, unsigned int fixedlen, unsigned int fill0) -{ - char *p; - int digit; - - /* sanity checks */ - if (buffer == NULL || size < 2) - return (NULL); - - /* p points to last char */ - p = buffer + size - 1; - - /* set terminating zero */ - *p = '\0'; - - do { - digit = value % 16; - value = value / 16; - *--p = (digit < 10 ? '0' : 'a' - 10) + digit; - } while (value != 0 && p > buffer); - - /* fill fixed length */ - while (p > buffer && strlen(p) < fixedlen) { - if (fill0) { - *--p = '0'; - } else { - *--p = ' '; - } - } - - return p; -} - - -/*! - @function qprintf - @abstract quick print values into string - @discussion similar to snprintf(), but only support for "%s", "%d", "%u", "%x" with optional length for the numbers - like "%5d" (filled with ' ') or "%05x" (filled with '0') - @param str destination - @param size maximum length of destination string - @param format (like printf() with reduced number of formats) - @result length of produced string -*/ -int qprintf(char *str, const size_t size, const char *format, ...) -{ - - va_list ap; - const char *src; - char *dst; - unsigned int len; - - src = format; - dst = str; - len = 0; - - va_start(ap, format); - - /* use size-1 for terminating zero */ - while (len < size - 1) { - - if (*src == '%') { - char buf[12], *s; - int d; - unsigned int u; - unsigned int fixedlen = 0; - unsigned int fill0 = 0; - - if (*++src == '0') - fill0 = 1; - while (*src >= '0' && *src <= '9') { - fixedlen = fixedlen * 10 + (*src - '0'); - src++; - } - - switch (*src) { - case 's': - src++; - s = va_arg(ap, char *); - while (len < size - 1 && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'd': - src++; - d = va_arg(ap, int); - s = itoa(buf, sizeof(buf), d, fixedlen, fill0); - while (len < size && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'u': - src++; - u = va_arg(ap, unsigned int); - s = utoa(buf, sizeof(buf), u, fixedlen, fill0); - while (len < size - 1 && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - case 'x': - src++; - u = va_arg(ap, unsigned int); - s = utox(buf, sizeof(buf), u, fixedlen, fill0); - while (len < size - 1 && *s != '\0') { - len++; - *dst++ = *s++; - } - break; - default: - len++; - *dst++ = '%'; - } - } else { - len++; - *dst++ = *src; - if (*src++ == '\0') - break; - } - } - - va_end(ap); - - /* enforce terminating zero */ - if (len >= size - 1 && *(dst - 1) != '\0') { - len++; - *dst = '\0'; - } - - /* do not count terminating zero */ - return len - 1; -} |