int ME_IsSplitable(const ME_String *s)
{
WCHAR *pos = s->szData;
WCHAR ch;
while(ME_IsWSpace(*pos++))
;
pos--;
while((ch = *pos++) != 0)
{
if (ME_IsWSpace(ch))
return 1;
}
return 0;
}
/* note: returns offset of the first trailing nonwhitespace */
int ME_ReverseFindWhitespaceV(const ME_String *s, int nVChar) {
int i;
for (i = nVChar; i>0 && !ME_IsWSpace(s->szData[i-1]); i--)
;
return i;
}
int ME_FindNonWhitespaceV(const ME_String *s, int nVChar) {
int i;
for (i = nVChar; i<s->nLen && ME_IsWSpace(s->szData[i]); i++)
;
return i;
}
/* note: returns offset of the first trailing nonwhitespace */
static int reverse_find_whitespace(const WCHAR *s, int start)
{
int i;
for (i = start; i > 0 && !ME_IsWSpace( s[i - 1] ); i--)
;
return i;
}
static int find_non_whitespace(const WCHAR *s, int len, int start)
{
int i;
for (i = start; i < len && ME_IsWSpace( s[i] ); i++)
;
return i;
}
static int
ME_WordBreakProc(LPWSTR s, INT start, INT len, INT code)
{
/* FIXME: Native also knows about punctuation */
TRACE("s==%s, start==%d, len==%d, code==%d\n",
debugstr_wn(s, len), start, len, code);
switch (code)
{
case WB_ISDELIMITER:
return ME_IsWSpace(s[start]);
case WB_LEFT:
case WB_MOVEWORDLEFT:
while (start && ME_IsWSpace(s[start - 1]))
start--;
while (start && !ME_IsWSpace(s[start - 1]))
start--;
return start;
case WB_RIGHT:
case WB_MOVEWORDRIGHT:
if (start && ME_IsWSpace(s[start - 1]))
{
while (start < len && ME_IsWSpace(s[start]))
start++;
}
else
{
while (start < len && !ME_IsWSpace(s[start]))
start++;
while (start < len && ME_IsWSpace(s[start]))
start++;
}
return start;
}
return 0;
}
static BOOL run_is_entirely_ws( const ME_Run *run )
{
WCHAR *str = get_text( run, 0 ), *p;
int i;
for (i = 0, p = str; i < run->len; i++, p++)
if (!ME_IsWSpace( *p )) return FALSE;
return TRUE;
}
int ME_IsWhitespaces(const ME_String *s)
{
/* FIXME multibyte */
WCHAR *pos = s->szData;
while(ME_IsWSpace(*pos++))
;
pos--;
if (*pos)
return 0;
else
return 1;
}
/******************************************************************************
* ME_UpdateRunFlags
*
* Determine some of run attributes given its content (style, text content).
* Some flags cannot be determined by this function (MERF_GRAPHICS,
* MERF_ENDPARA)
*/
void ME_UpdateRunFlags(ME_TextEditor *editor, ME_Run *run)
{
assert(run->nCharOfs >= 0);
if (RUN_IS_HIDDEN(run) || run->nFlags & MERF_TABLESTART)
run->nFlags |= MERF_HIDDEN;
else
run->nFlags &= ~MERF_HIDDEN;
if (run_is_splittable( run ))
run->nFlags |= MERF_SPLITTABLE;
else
run->nFlags &= ~MERF_SPLITTABLE;
if (!(run->nFlags & MERF_NOTEXT))
{
if (run_is_entirely_ws( run ))
run->nFlags |= MERF_WHITESPACE | MERF_STARTWHITE | MERF_ENDWHITE;
else
{
run->nFlags &= ~MERF_WHITESPACE;
if (ME_IsWSpace( *get_text( run, 0 ) ))
run->nFlags |= MERF_STARTWHITE;
else
run->nFlags &= ~MERF_STARTWHITE;
if (ME_IsWSpace( *get_text( run, run->len - 1 ) ))
run->nFlags |= MERF_ENDWHITE;
else
run->nFlags &= ~MERF_ENDWHITE;
}
}
else
run->nFlags &= ~(MERF_WHITESPACE | MERF_STARTWHITE | MERF_ENDWHITE);
}
static BOOL run_is_splittable( const ME_Run *run )
{
WCHAR *str = get_text( run, 0 ), *p;
int i;
BOOL found_ink = FALSE;
for (i = 0, p = str; i < run->len; i++, p++)
{
if (ME_IsWSpace( *p ))
{
if (found_ink) return TRUE;
}
else
found_ink = TRUE;
}
return FALSE;
}
