/* emmatch() -- match emphasis for a single emphasis token.
*/
static void
emmatch(MMIOT *f, int first, int last)
{
block *start = &T(f->Q)[first];
int e, e2, match;
switch (start->b_count) {
case 2: if ( e = empair(f,first,last,match=2) )
break;
case 1: e = empair(f,first,last,match=1);
break;
case 0: return;
default:
e = empair(f,first,last,1);
e2= empair(f,first,last,2);
if ( e2 >= e ) {
e = e2;
match = 2;
}
else
match = 1;
break;
}
if ( e ) {
/* if we found emphasis to match, match it, recursively call
* emblock to match emphasis inside the new html block, add
* the emphasis markers for the block, then (tail) recursively
* call ourself to match any remaining emphasis on this token.
*/
block *end = &T(f->Q)[e];
end->b_count -= match;
start->b_count -= match;
emblock(f, first, e);
PREFIX(start->b_text, emtags[match-1].open, emtags[match-1].size-1);
SUFFIX(end->b_post, emtags[match-1].close, emtags[match-1].size);
emmatch(f, first, last);
}
} /* emmatch */
/* emmatch()
*/
static void
emmatch(MMIOT *f, int go)
{
block *start = &T(f->Q)[go], *end;
int e, e2, i, match;
while ( start->b_count ) {
switch (start->b_count) {
case 2: e = empair(f,go,match=2);
if ( e != EOF ) break;
case 1: e = empair(f,go,match=1); break;
default:
e = empair(f,go,1);
e2= empair(f,go,2);
if ( e == EOF || ((e2 != EOF) && (e2 >= e)) ) {
e = e2;
match = 2;
}
else
match = 1;
}
if ( e != EOF ) {
end = &T(f->Q)[go+e];
emclose(&end->b_post, match);
emopen(&start->b_text, match);
end->b_count -= match;
}
else {
for (i=0; i < match; i++)
EXPAND(start->b_text) = start->b_char;
}
start->b_count -= match;
}
}