/*
* This is do_mvis, for Quoted-Printable MIME (RFC 2045)
* NB: No handling of long lines or CRLF.
*/
static wchar_t *
do_mvis(wchar_t *dst, wint_t c, int flags, wint_t nextc, const wchar_t *extra)
{
if ((c != L'\n') &&
/* Space at the end of the line */
((iswspace(c) && (nextc == L'\r' || nextc == L'\n')) ||
/* Out of range */
(!iswspace(c) && (c < 33 || (c > 60 && c < 62) || c > 126)) ||
/* Specific char to be escaped */
wcschr(L"#$@[\\]^`{|}~", c) != NULL)) {
*dst++ = L'=';
*dst++ = XTOA(((unsigned int)c >> 4) & 0xf);
*dst++ = XTOA((unsigned int)c & 0xf);
} else
/*
* This is do_mvis, for Quoted-Printable MIME (RFC 2045)
* NB: No handling of long lines or CRLF.
*/
static char *
do_mvis(char *dst, int c, int flag, int nextc, const char *extra)
{
if ((c != '\n') &&
/* Space at the end of the line */
((isspace(c) && (nextc == '\r' || nextc == '\n')) ||
/* Out of range */
(!isspace(c) && (c < 33 || (c > 60 && c < 62) || c > 126)) ||
/* Specific char to be escaped */
strchr("#$@[\\]^`{|}~", c) != NULL)) {
*dst++ = '=';
*dst++ = XTOA(((unsigned int)c >> 4) & 0xf);
*dst++ = XTOA((unsigned int)c & 0xf);
} else {
