/* parse_atxheader • parsing of atx-style headers */
static size_t
parse_atxheader(struct buf *ob, struct render *rndr,
char *data, size_t size) {
int level = 0;
size_t i, end, skip, span_beg, span_size;
if (!size || data[0] != '#') return 0;
while (level < size && level < 6 && data[level] == '#') level += 1;
for (i = level; i < size && (data[i] == ' ' || data[i] == '\t');
i += 1);
span_beg = i;
for (end = i; end < size && data[end] != '\n'; end += 1);
skip = end;
if (end <= i)
return parse_paragraph(ob, rndr, data, size);
while (end && data[end - 1] == '#') end -= 1;
while (end && (data[end - 1] == ' ' || data[end - 1] == '\t')) end -= 1;
if (end <= i)
return parse_paragraph(ob, rndr, data, size);
span_size = end - span_beg;
if (rndr->make.header) {
struct buf *span = new_work_buffer(rndr);
parse_inline(span, rndr, data + span_beg, span_size);
rndr->make.header(ob, span, level, rndr->make.opaque);
release_work_buffer(rndr, span); }
return skip; }
/* parse_block • parsing of one block, returning next char to parse */
static void
parse_block(struct buf *ob, struct render *rndr, char *data, size_t size)
{
size_t beg, end, i;
char *txt_data;
beg = 0;
if (rndr->work.size > rndr->max_nesting)
return;
while (beg < size) {
txt_data = data + beg;
end = size - beg;
if (data[beg] == '#')
beg += parse_atxheader(ob, rndr, txt_data, end);
else if (data[beg] == '<' && rndr->make.blockhtml &&
(i = parse_htmlblock(ob, rndr, txt_data, end, 1)) != 0)
beg += i;
else if ((i = is_empty(txt_data, end)) != 0)
beg += i;
else if (is_hrule(txt_data, end)) {
if (rndr->make.hrule)
rndr->make.hrule(ob, rndr->make.opaque);
while (beg < size && data[beg] != '\n')
beg++;
beg++;
}
else if ((rndr->ext_flags & MKDEXT_FENCED_CODE) != 0 &&
(i = parse_fencedcode(ob, rndr, txt_data, end)) != 0)
beg += i;
else if ((rndr->ext_flags & MKDEXT_TABLES) != 0 &&
(i = parse_table(ob, rndr, txt_data, end)) != 0)
beg += i;
else if (prefix_quote(txt_data, end))
beg += parse_blockquote(ob, rndr, txt_data, end);
else if (prefix_code(txt_data, end))
beg += parse_blockcode(ob, rndr, txt_data, end);
else if (prefix_uli(txt_data, end))
beg += parse_list(ob, rndr, txt_data, end, 0);
else if (prefix_oli(txt_data, end))
beg += parse_list(ob, rndr, txt_data, end, MKD_LIST_ORDERED);
else
beg += parse_paragraph(ob, rndr, txt_data, end);
}
}
/* parse_block • parsing of one block, returning next char to parse */
static void
parse_block(struct buf *ob, struct render *rndr,
char *data, size_t size) {
size_t beg, end, i;
char *txt_data;
int has_table = (rndr->make.table && rndr->make.table_row
&& rndr->make.table_cell);
if (rndr->work.size > rndr->make.max_work_stack) {
if (size) bufput(ob, data, size);
return; }
beg = 0;
while (beg < size) {
txt_data = data + beg;
end = size - beg;
if (data[beg] == '#')
beg += parse_atxheader(ob, rndr, txt_data, end);
else if (data[beg] == '<' && rndr->make.blockhtml
&& (i = parse_htmlblock(ob, rndr, txt_data, end)) != 0)
beg += i;
else if ((i = is_empty(txt_data, end)) != 0)
beg += i;
else if (is_hrule(txt_data, end)) {
if (rndr->make.hrule)
rndr->make.hrule(ob, rndr->make.opaque);
while (beg < size && data[beg] != '\n') beg += 1;
beg += 1; }
else if (prefix_quote(txt_data, end))
beg += parse_blockquote(ob, rndr, txt_data, end);
else if (prefix_code(txt_data, end))
beg += parse_blockcode(ob, rndr, txt_data, end);
else if (prefix_uli(txt_data, end))
beg += parse_list(ob, rndr, txt_data, end, 0);
else if (prefix_oli(txt_data, end))
beg += parse_list(ob, rndr, txt_data, end,
MKD_LIST_ORDERED);
else if (has_table && is_tableline(txt_data, end))
beg += parse_table(ob, rndr, txt_data, end);
else
beg += parse_paragraph(ob, rndr, txt_data, end); } }
