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/*****************************************************************************/
/* pemagination: a (virtual) tour into portable bits and executable bytes */
/* Copyright (C) 2013,2014,2015 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.PEMAGINE. */
/*****************************************************************************/
#include <psxtypes/psxtypes.h>
#include <pemagine/pemagine.h>
#include "pe_impl.h"
int32_t pe_impl_strlen_ansi(const char * str)
{
const char * ch;
const char * upper_bound;
upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
for (ch=str; *ch && ch<upper_bound; )
ch++;
return (ch < upper_bound)
? ch - str
: -1;
}
int32_t pe_impl_strlen_utf16(const wchar16_t * str)
{
wchar16_t * wch;
wchar16_t * upper_bound;
/* sanity check */
upper_bound = (wchar16_t *)str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
for (wch = (wchar16_t *)str; (wch < upper_bound) && (*wch); wch++);
if (wch < upper_bound)
return ((uint32_t)(wch - str)) * sizeof(wchar16_t);
else
return -1;
}
wchar16_t pe_impl_utf16_char_to_lower(const wchar16_t c)
{
if ((c >= 'A') && (c <= 'Z'))
return c + 'a' - 'A';
else
return c;
}
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