xz-analysis-mirror/src/common/tuklib_mbstr_fw.c

32 lines
744 B
C

///////////////////////////////////////////////////////////////////////////////
//
/// \file tuklib_mstr_fw.c
/// \brief Get the field width for printf() e.g. to align table columns
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include "tuklib_mbstr.h"
extern int
tuklib_mbstr_fw(const char *str, int columns_min)
{
size_t len;
const size_t width = tuklib_mbstr_width(str, &len);
if (width == (size_t)-1)
return -1;
if (width > (size_t)columns_min)
return 0;
if (width < (size_t)columns_min)
len += (size_t)columns_min - width;
return len;
}