static void
rndr_footnote_def(hoedown_buffer *ob, const hoedown_buffer *text, unsigned int num, void *opaque)
{
size_t i = 0;
int pfound = 0;
/* insert anchor at the end of first paragraph block */
if (text) {
while ((i+3) < text->size) {
if (text->data[i++] != '<') continue;
if (text->data[i++] != '/') continue;
if (text->data[i++] != 'p' && text->data[i] != 'P') continue;
if (text->data[i] != '>') continue;
i -= 3;
pfound = 1;
break;
}
}
hoedown_buffer_printf(ob, "\n<li id=\"fn%d\">\n", num);
if (pfound) {
hoedown_buffer_put(ob, text->data, i);
hoedown_buffer_printf(ob, " <a href=\"#fnref%d\" rev=\"footnote\">↩</a>", num);
hoedown_buffer_put(ob, text->data + i, text->size - i);
} else if (text) {
hoedown_buffer_put(ob, text->data, text->size);
}
HOEDOWN_BUFPUTSL(ob, "</li>\n");
}
void
hoedown_escape_html(hoedown_buffer *ob, const uint8_t *data, size_t size, int secure)
{
size_t i = 0, mark;
while (1) {
mark = i;
while (i < size && HTML_ESCAPE_TABLE[data[i]] == 0) i++;
/* Optimization for cases where there's nothing to escape */
if (mark == 0 && i >= size) {
hoedown_buffer_put(ob, data, size);
return;
}
if (likely(i > mark))
hoedown_buffer_put(ob, data + mark, i - mark);
if (i >= size) break;
/* The forward slash is only escaped in secure mode */
if (!secure && data[i] == '/') {
hoedown_buffer_putc(ob, '/');
} else {
hoedown_buffer_puts(ob, HTML_ESCAPES[HTML_ESCAPE_TABLE[data[i]]]);
}
i++;
}
}
static int
rndr_math(hoedown_buffer *ob, const hoedown_buffer *text, int displaymode, const hoedown_renderer_data *data)
{
hoedown_buffer_put(ob, (const uint8_t *)(displaymode ? "\\[" : "\\("), 2);
escape_html(ob, text->data, text->size);
hoedown_buffer_put(ob, (const uint8_t *)(displaymode ? "\\]" : "\\)"), 2);
return 1;
}
static void
rndr_list(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_list_flags flags, const hoedown_renderer_data *data)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
hoedown_buffer_put(ob, (const uint8_t *)(flags & HOEDOWN_LIST_ORDERED ? "<ol>\n" : "<ul>\n"), 5);
if (content) hoedown_buffer_put(ob, content->data, content->size);
hoedown_buffer_put(ob, (const uint8_t *)(flags & HOEDOWN_LIST_ORDERED ? "</ol>\n" : "</ul>\n"), 6);
}
static void
rndr_list(hoedown_buffer *ob, const hoedown_buffer *text, unsigned int flags, void *opaque)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
hoedown_buffer_put(ob, flags & HOEDOWN_LIST_ORDERED ? "<ol>\n" : "<ul>\n", 5);
if (text) hoedown_buffer_put(ob, text->data, text->size);
hoedown_buffer_put(ob, flags & HOEDOWN_LIST_ORDERED ? "</ol>\n" : "</ul>\n", 6);
}
static void
rndr_table(hoedown_buffer *ob, const hoedown_buffer *header, const hoedown_buffer *body, void *opaque)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
HOEDOWN_BUFPUTSL(ob, "<table><thead>\n");
if (header)
hoedown_buffer_put(ob, header->data, header->size);
HOEDOWN_BUFPUTSL(ob, "</thead><tbody>\n");
if (body)
hoedown_buffer_put(ob, body->data, body->size);
HOEDOWN_BUFPUTSL(ob, "</tbody></table>\n");
}
// Supports task list syntax if HOEDOWN_HTML_USE_TASK_LIST is on.
// Implementation based on hoextdown.
void hoedown_patch_render_listitem(
hoedown_buffer *ob, const hoedown_buffer *text, hoedown_list_flags flags,
const hoedown_renderer_data *data)
{
if (text)
{
hoedown_html_renderer_state *state = data->opaque;
size_t offset = 0;
if (flags & HOEDOWN_LI_BLOCK)
offset = 3;
// Do task list checkbox ([x] or [ ]).
if (USE_TASK_LIST(state) && text->size >= 3)
{
if (strncmp((char *)(text->data + offset), "[ ]", 3) == 0)
{
HOEDOWN_BUFPUTSL(ob, "<li class=\"task-list-item\">");
hoedown_buffer_put(ob, text->data, offset);
if (USE_XHTML(state))
HOEDOWN_BUFPUTSL(ob, "<input type=\"checkbox\" />");
else
HOEDOWN_BUFPUTSL(ob, "<input type=\"checkbox\">");
offset += 3;
}
else if (strncmp((char *)(text->data + offset), "[x]", 3) == 0)
{
HOEDOWN_BUFPUTSL(ob, "<li class=\"task-list-item\">");
hoedown_buffer_put(ob, text->data, offset);
if (USE_XHTML(state))
HOEDOWN_BUFPUTSL(ob, "<input type=\"checkbox\" checked />");
else
HOEDOWN_BUFPUTSL(ob, "<input type=\"checkbox\" checked>");
offset += 3;
}
else
{
HOEDOWN_BUFPUTSL(ob, "<li>");
offset = 0;
}
}
else
{
HOEDOWN_BUFPUTSL(ob, "<li>");
offset = 0;
}
size_t size = text->size;
while (size && text->data[size - offset - 1] == '\n')
size--;
hoedown_buffer_put(ob, text->data + offset, size - offset);
}
HOEDOWN_BUFPUTSL(ob, "</li>\n");
}
static void
rndr_footnote_def(hoedown_buffer *ob, const hoedown_buffer *content, unsigned int num, const hoedown_renderer_data *data)
{
const hoedown_buffer *id;
id = hoedown_document_footnote_id(((hoedown_context_test_renderer_state*) data->opaque)->doc);
if (id) {
hoedown_buffer_puts(ob, "id: ");
hoedown_buffer_put(ob, id->data, id->size);
}
hoedown_buffer_putc(ob, ' ');
if (content) hoedown_buffer_put(ob, content->data, content->size);
}
static void
rndr_tablerow(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
{
HOEDOWN_BUFPUTSL(ob, "<tr>\n");
if (content) hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</tr>\n");
}
static void
rndr_raw_block(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data)
{
size_t org, sz;
if (!text)
return;
/* FIXME: Do we *really* need to trim the HTML? How does that make a difference? */
sz = text->size;
while (sz > 0 && text->data[sz - 1] == '\n')
sz--;
org = 0;
while (org < sz && text->data[org] == '\n')
org++;
if (org >= sz)
return;
if (ob->size)
hoedown_buffer_putc(ob, '\n');
hoedown_buffer_put(ob, text->data + org, sz - org);
hoedown_buffer_putc(ob, '\n');
}
static int
rndr_link(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_renderer_data *data)
{
hoedown_html_renderer_state *state = data->opaque;
HOEDOWN_BUFPUTSL(ob, "<a href=\"");
if (link && link->size)
escape_href(ob, link->data, link->size);
if (title && title->size) {
HOEDOWN_BUFPUTSL(ob, "\" title=\"");
escape_html(ob, title->data, title->size);
}
if (state->link_attributes) {
hoedown_buffer_putc(ob, '\"');
state->link_attributes(ob, link, data);
hoedown_buffer_putc(ob, '>');
} else {
HOEDOWN_BUFPUTSL(ob, "\">");
}
if (content && content->size) hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</a>");
return 1;
}
static void
toc_header(hoedown_buffer *ob, const hoedown_buffer *content, int level, const hoedown_renderer_data *data)
{
hoedown_html_renderer_state *state = data->opaque;
if (level <= state->toc_data.nesting_level) {
/* set the level offset if this is the first header
* we're parsing for the document */
if (state->toc_data.current_level == 0)
state->toc_data.level_offset = level - 1;
level -= state->toc_data.level_offset;
if (level > state->toc_data.current_level) {
while (level > state->toc_data.current_level) {
HOEDOWN_BUFPUTSL(ob, "<ul>\n<li>\n");
state->toc_data.current_level++;
}
} else if (level < state->toc_data.current_level) {
HOEDOWN_BUFPUTSL(ob, "</li>\n");
while (level < state->toc_data.current_level) {
HOEDOWN_BUFPUTSL(ob, "</ul>\n</li>\n");
state->toc_data.current_level--;
}
HOEDOWN_BUFPUTSL(ob,"<li>\n");
} else {
HOEDOWN_BUFPUTSL(ob,"</li>\n<li>\n");
}
hoedown_buffer_printf(ob, "<a href=\"#toc_%d\">", state->toc_data.header_count++);
if (content) hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</a>\n");
}
}
size_t
hoedown_autolink__www(
size_t *rewind_p,
hoedown_buffer *link,
uint8_t *data,
size_t max_rewind,
size_t size,
unsigned int flags)
{
size_t link_end;
if (max_rewind > 0 && !ispunct(data[-1]) && !isspace(data[-1]))
return 0;
if (size < 4 || memcmp(data, "www.", strlen("www.")) != 0)
return 0;
link_end = check_domain(data, size, 0);
if (link_end == 0)
return 0;
while (link_end < size && !isspace(data[link_end]))
link_end++;
link_end = autolink_delim(data, link_end, max_rewind, size);
if (link_end == 0)
return 0;
hoedown_buffer_put(link, data, link_end);
*rewind_p = 0;
return (int)link_end;
}
static int
rndr_link(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_buffer *attr, const hoedown_renderer_data *data)
{
const hoedown_buffer *id;
hoedown_link_type link_type;
id = hoedown_document_link_id(((hoedown_context_test_renderer_state*) data->opaque)->doc);
hoedown_buffer_puts(ob, "id: ");
if (id) hoedown_buffer_put(ob, id->data, id->size);
else hoedown_buffer_puts(ob, "no id");
hoedown_buffer_putc(ob, ' ');
link_type = hoedown_document_link_type(((hoedown_context_test_renderer_state*) data->opaque)->doc);
switch (link_type) {
case HOEDOWN_LINK_INLINE:
hoedown_buffer_puts(ob, "HOEDOWN_LINK_INLINE");
break;
case HOEDOWN_LINK_REFERENCE:
hoedown_buffer_puts(ob, "HOEDOWN_LINK_REFERENCE");
break;
case HOEDOWN_LINK_EMPTY_REFERENCE:
hoedown_buffer_puts(ob, "HOEDOWN_LINK_EMPTY_REFERENCE");
break;
case HOEDOWN_LINK_SHORTCUT:
hoedown_buffer_puts(ob, "HOEDOWN_LINK_SHORTCUT");
break;
default:
break;
}
return 1;
}
static void
rndr_tablecell(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_table_flags flags, const hoedown_renderer_data *data)
{
if (flags & HOEDOWN_TABLE_HEADER) {
HOEDOWN_BUFPUTSL(ob, "<th");
} else {
HOEDOWN_BUFPUTSL(ob, "<td");
}
switch (flags & HOEDOWN_TABLE_ALIGNMASK) {
case HOEDOWN_TABLE_ALIGN_CENTER:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: center\">");
break;
case HOEDOWN_TABLE_ALIGN_LEFT:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: left\">");
break;
case HOEDOWN_TABLE_ALIGN_RIGHT:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: right\">");
break;
default:
HOEDOWN_BUFPUTSL(ob, ">");
}
if (content)
hoedown_buffer_put(ob, content->data, content->size);
if (flags & HOEDOWN_TABLE_HEADER) {
HOEDOWN_BUFPUTSL(ob, "</th>\n");
} else {
HOEDOWN_BUFPUTSL(ob, "</td>\n");
}
}
static int
toc_link(hoedown_buffer *ob, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_buffer *content, void *opaque)
{
if (content && content->size)
hoedown_buffer_put(ob, content->data, content->size);
return 1;
}
static void
rndr_test_link_attributes(hoedown_buffer *ob, const hoedown_buffer *url, const hoedown_renderer_data *data)
{
hoedown_buffer_puts(ob, " data-url=\"");
hoedown_buffer_put(ob, url->data, url->size);
hoedown_buffer_putc(ob, '\"');
}
static int
rndr_raw_html(hoedown_buffer *ob, const hoedown_buffer *text, void *opaque)
{
hoedown_html_renderer_state *state = opaque;
/* HTML_ESCAPE overrides SKIP_HTML, SKIP_STYLE, SKIP_LINKS and SKIP_IMAGES
* It doens't see if there are any valid tags, just escape all of them. */
if((state->flags & HOEDOWN_HTML_ESCAPE) != 0) {
escape_html(ob, text->data, text->size);
return 1;
}
if ((state->flags & HOEDOWN_HTML_SKIP_HTML) != 0)
return 1;
if ((state->flags & HOEDOWN_HTML_SKIP_STYLE) != 0 &&
hoedown_html_is_tag(text->data, text->size, "style"))
return 1;
if ((state->flags & HOEDOWN_HTML_SKIP_LINKS) != 0 &&
hoedown_html_is_tag(text->data, text->size, "a"))
return 1;
if ((state->flags & HOEDOWN_HTML_SKIP_IMAGES) != 0 &&
hoedown_html_is_tag(text->data, text->size, "img"))
return 1;
hoedown_buffer_put(ob, text->data, text->size);
return 1;
}
static void
rndr_tablecell(hoedown_buffer *ob, const hoedown_buffer *text, unsigned int flags, void *opaque)
{
if (flags & HOEDOWN_TABLE_HEADER) {
HOEDOWN_BUFPUTSL(ob, "<th");
} else {
HOEDOWN_BUFPUTSL(ob, "<td");
}
switch (flags & HOEDOWN_TABLE_ALIGNMASK) {
case HOEDOWN_TABLE_ALIGN_CENTER:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: center\">");
break;
case HOEDOWN_TABLE_ALIGN_LEFT:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: left\">");
break;
case HOEDOWN_TABLE_ALIGN_RIGHT:
HOEDOWN_BUFPUTSL(ob, " style=\"text-align: right\">");
break;
default:
HOEDOWN_BUFPUTSL(ob, ">");
}
if (text)
hoedown_buffer_put(ob, text->data, text->size);
if (flags & HOEDOWN_TABLE_HEADER) {
HOEDOWN_BUFPUTSL(ob, "</th>\n");
} else {
HOEDOWN_BUFPUTSL(ob, "</td>\n");
}
}
static int
rndr_link(hoedown_buffer *ob, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_buffer *content, void *opaque)
{
hoedown_html_renderer_state *state = opaque;
if (link != NULL && (state->flags & HOEDOWN_HTML_SAFELINK) != 0 && !hoedown_autolink_is_safe(link->data, link->size))
return 0;
HOEDOWN_BUFPUTSL(ob, "<a href=\"");
if (link && link->size)
escape_href(ob, link->data, link->size);
if (title && title->size) {
HOEDOWN_BUFPUTSL(ob, "\" title=\"");
escape_html(ob, title->data, title->size);
}
if (state->link_attributes) {
hoedown_buffer_putc(ob, '\"');
state->link_attributes(ob, link, opaque);
hoedown_buffer_putc(ob, '>');
} else {
HOEDOWN_BUFPUTSL(ob, "\">");
}
if (content && content->size) hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</a>");
return 1;
}
// rndr_blockcode from HEAD. The "language-" prefix in class in needed to make
// the HTML compatible with Prism.
void hoedown_patch_render_blockcode(
hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_buffer *lang,
const hoedown_renderer_data *data)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
hoedown_html_renderer_state *state = data->opaque;
hoedown_buffer *front = NULL;
hoedown_buffer *back = NULL;
if (lang && USE_BLOCKCODE_INFORMATION(state))
{
front = hoedown_buffer_new(lang->size);
back = hoedown_buffer_new(lang->size);
hoedown_buffer *current = front;
for (size_t i = 0; i < lang->size; i++)
{
uint8_t c = lang->data[i];
if (current == front && c == ':')
current = back;
else
hoedown_buffer_putc(current, c);
}
lang = front;
}
HOEDOWN_BUFPUTSL(ob, "<pre");
if (state->flags & HOEDOWN_HTML_BLOCKCODE_LINE_NUMBERS)
HOEDOWN_BUFPUTSL(ob, " class=\"line-numbers\"");
if (back && back->size)
{
HOEDOWN_BUFPUTSL(ob, " data-information=\"");
hoedown_buffer_put(ob, back->data, back->size);
HOEDOWN_BUFPUTSL(ob, "\"");
}
HOEDOWN_BUFPUTSL(ob, "><code class=\"language-");
if (lang && lang->size)
hoedown_escape_html(ob, lang->data, lang->size, 0);
else
HOEDOWN_BUFPUTSL(ob, "none");
HOEDOWN_BUFPUTSL(ob, "\">");
if (text)
{
// Remove last newline to prevent prism from adding a blank line at the
// end of code blocks.
size_t size = text->size;
if (size > 0 && text->data[size - 1] == '\n')
size--;
hoedown_escape_html(ob, text->data, size, 0);
}
HOEDOWN_BUFPUTSL(ob, "</code></pre>\n");
hoedown_buffer_free(front);
hoedown_buffer_free(back);
}
static void
rndr_tablerow(hoedown_buffer *ob, const hoedown_buffer *text, void *opaque)
{
HOEDOWN_BUFPUTSL(ob, "<tr>\n");
if (text)
hoedown_buffer_put(ob, text->data, text->size);
HOEDOWN_BUFPUTSL(ob, "</tr>\n");
}
static void
rndr_blockquote(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
HOEDOWN_BUFPUTSL(ob, "<blockquote>\n");
if (content) hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</blockquote>\n");
}
static void
rndr_blockquote(hoedown_buffer *ob, const hoedown_buffer *text, void *opaque)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
HOEDOWN_BUFPUTSL(ob, "<blockquote>\n");
if (text) hoedown_buffer_put(ob, text->data, text->size);
HOEDOWN_BUFPUTSL(ob, "</blockquote>\n");
}
static void
rndr_table_body(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
{
if (ob->size) hoedown_buffer_putc(ob, '\n');
HOEDOWN_BUFPUTSL(ob, "<tbody>\n");
hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</tbody>\n");
}
static int
rndr_superscript(hoedown_buffer *ob, const hoedown_buffer *text, void *opaque)
{
if (!text || !text->size) return 0;
HOEDOWN_BUFPUTSL(ob, "<sup>");
hoedown_buffer_put(ob, text->data, text->size);
HOEDOWN_BUFPUTSL(ob, "</sup>");
return 1;
}
static int
rndr_emphasis(struct hoedown_buffer *ob, const struct hoedown_buffer *text, void *opaque)
{
if (!text || !text->size) return 0;
BUFPUTSL(ob, "<em>");
if (text) hoedown_buffer_put(ob, text->data, text->size);
BUFPUTSL(ob, "</em>");
return 1;
}
static int
rndr_triple_emphasis(hoedown_buffer *ob, const hoedown_buffer *text, void *opaque)
{
if (!text || !text->size) return 0;
HOEDOWN_BUFPUTSL(ob, "<strong><em>");
hoedown_buffer_put(ob, text->data, text->size);
HOEDOWN_BUFPUTSL(ob, "</em></strong>");
return 1;
}
static int
rndr_triple_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
{
if (!content || !content->size) return 0;
HOEDOWN_BUFPUTSL(ob, "<strong><em>");
hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</em></strong>");
return 1;
}
static int
rndr_superscript(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
{
if (!content || !content->size) return 0;
HOEDOWN_BUFPUTSL(ob, "<sup>");
hoedown_buffer_put(ob, content->data, content->size);
HOEDOWN_BUFPUTSL(ob, "</sup>");
return 1;
}