Style *
new_style(const char *name, LList *spec)
{
Style *style;
Iterator *it;
StrBuf *prebuf;
StrBuf *postbuf;
style = xmalloc(sizeof(Style));
style->name = xstrdup(name);
prebuf = strbuf_new();
postbuf = strbuf_new();
for (it = llist_iterator(spec); iterator_has_next(it); ) {
StyleInfo *info = iterator_next(it);
if (info->type == STYLEINFO_PRE) {
strbuf_append(prebuf, info->value);
} else if (info->type == STYLEINFO_POST) {
strbuf_prepend(postbuf, info->value);
} else if (info->type == STYLEINFO_STYLE) {
const Style *add_style = info->value;
strbuf_append(prebuf, add_style->pre_string);
strbuf_prepend(postbuf, add_style->post_string);
}
}
style->pre_string = strbuf_free_to_string(prebuf);
style->post_string = strbuf_free_to_string(postbuf);
style->refs = 1;
return style;
}
static unsigned char *
rle_decode(unsigned char *data, int datalen, int width, int *decoded_size)
{
StrBuf *buf, *retbuf;
unsigned char *ret, *tmp;
int extra, x;
buf = strbuf_new ();
retbuf = strbuf_new ();
extra = 4 - (width % 4);
if (extra == 4) extra = 0;
for (x = 0; x < datalen; x++) {
if (data[x] == 0) {
x++;
tmp = (unsigned char *) strrepeat ("", 1, (int) data[x]);
strbuf_append (buf, tmp, data[x]);
free (tmp);
} else
strbuf_append (buf, &(data[x]), 1);
}
for (x = 0; x < buf->len; x += width) {
if (extra > 0) {
tmp = (unsigned char *) strrepeat ("", 1, extra);
strbuf_prepend (retbuf, tmp, extra);
free (tmp);
}
strbuf_prepend (retbuf, buf->str + x, width);
}
ret = retbuf->str;
if (decoded_size) *decoded_size = retbuf->len;
strbuf_free (retbuf, 0);
strbuf_free (buf, 1);
return ret;
}