ucs-2 to utf-8 ?

[Martin `MJ' Mares]

Zdravim!

> Nebo, nemeli byste nekdo aspon popis utf-8? Uz to pul dne hledam jako blazen...
> ... ach jo..

RFC 2279

Jinak poslouzi napriklad nasledujici makra:

#define UNI_REPLACEMENT 0xfffc

#define PUT_UTF8(p,u) do {		\
  if (u < 0x80)				\
    *p++ = u;				\
  else if (u < 0x800)			\
    {					\
      *p++ = 0xc0 | (u >> 6);		\
      *p++ = 0x80 | (u & 0x3f);		\
    }					\
  else					\
    {					\
      *p++ = 0xe0 | (u >> 12);		\
      *p++ = 0x80 | ((u >> 6) & 0x3f);	\
      *p++ = 0x80 | (u & 0x3f);		\
    }					\
  } while(0)

#define GET_UTF8_CHAR(p,u) do {		\
    if (*p >= 0xf0)			\
      {	/* Too large, use replacement char */	\
	p++;				\
	while ((*p & 0xc0) == 0x80)	\
	  p++;				\
	u = UNI_REPLACEMENT;		\
      }					\
    else if (*p >= 0xe0)		\
      {					\
	u = *p++ & 0x0f;		\
	if ((*p & 0xc0) == 0x80)       	\
	  u = (u << 6) | (*p++ & 0x3f);	\
	if ((*p & 0xc0) == 0x80)	\
	  u = (u << 6) | (*p++ & 0x3f);	\
      }					\
    else				\
      {					\
	u = *p++ & 0x1f;		\
	if ((*p & 0xc0) == 0x80)	\
	  u = (u << 6) | (*p++ & 0x3f);	\
      }					\
  } while (0)

				Have a nice fortnight
-- 
Martin `MJ' Mares   <mj na ucw.cz>   http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
IBM = Industry's Biggest Mistake