From b6d455a02bd338e9dc0faa09d4d8177ecd8d569a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 10 Apr 2016 15:53:05 +0200
Subject: NOISSUE reorganize and document libraries

---
 libraries/hoedown/src/html.c | 754 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 754 insertions(+)
 create mode 100644 libraries/hoedown/src/html.c

(limited to 'libraries/hoedown/src/html.c')

diff --git a/libraries/hoedown/src/html.c b/libraries/hoedown/src/html.c
new file mode 100644
index 00000000..4b18d804
--- /dev/null
+++ b/libraries/hoedown/src/html.c
@@ -0,0 +1,754 @@
+#include "hoedown/html.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#include "hoedown/escape.h"
+
+#define USE_XHTML(opt) (opt->flags & HOEDOWN_HTML_USE_XHTML)
+
+hoedown_html_tag
+hoedown_html_is_tag(const uint8_t *data, size_t size, const char *tagname)
+{
+	size_t i;
+	int closed = 0;
+
+	if (size < 3 || data[0] != '<')
+		return HOEDOWN_HTML_TAG_NONE;
+
+	i = 1;
+
+	if (data[i] == '/') {
+		closed = 1;
+		i++;
+	}
+
+	for (; i < size; ++i, ++tagname) {
+		if (*tagname == 0)
+			break;
+
+		if (data[i] != *tagname)
+			return HOEDOWN_HTML_TAG_NONE;
+	}
+
+	if (i == size)
+		return HOEDOWN_HTML_TAG_NONE;
+
+	if (isspace(data[i]) || data[i] == '>')
+		return closed ? HOEDOWN_HTML_TAG_CLOSE : HOEDOWN_HTML_TAG_OPEN;
+
+	return HOEDOWN_HTML_TAG_NONE;
+}
+
+static void escape_html(hoedown_buffer *ob, const uint8_t *source, size_t length)
+{
+	hoedown_escape_html(ob, source, length, 0);
+}
+
+static void escape_href(hoedown_buffer *ob, const uint8_t *source, size_t length)
+{
+	hoedown_escape_href(ob, source, length);
+}
+
+/********************
+ * GENERIC RENDERER *
+ ********************/
+static int
+rndr_autolink(hoedown_buffer *ob, const hoedown_buffer *link, hoedown_autolink_type type, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+
+	if (!link || !link->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<a href=\"");
+	if (type == HOEDOWN_AUTOLINK_EMAIL)
+		HOEDOWN_BUFPUTSL(ob, "mailto:");
+	escape_href(ob, link->data, link->size);
+
+	if (state->link_attributes) {
+		hoedown_buffer_putc(ob, '\"');
+		state->link_attributes(ob, link, data);
+		hoedown_buffer_putc(ob, '>');
+	} else {
+		HOEDOWN_BUFPUTSL(ob, "\">");
+	}
+
+	/*
+	 * Pretty printing: if we get an email address as
+	 * an actual URI, e.g. `mailto:foo@bar.com`, we don't
+	 * want to print the `mailto:` prefix
+	 */
+	if (hoedown_buffer_prefix(link, "mailto:") == 0) {
+		escape_html(ob, link->data + 7, link->size - 7);
+	} else {
+		escape_html(ob, link->data, link->size);
+	}
+
+	HOEDOWN_BUFPUTSL(ob, "</a>");
+
+	return 1;
+}
+
+static void
+rndr_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');
+
+	if (lang) {
+		HOEDOWN_BUFPUTSL(ob, "<pre><code class=\"language-");
+		escape_html(ob, lang->data, lang->size);
+		HOEDOWN_BUFPUTSL(ob, "\">");
+	} else {
+		HOEDOWN_BUFPUTSL(ob, "<pre><code>");
+	}
+
+	if (text)
+		escape_html(ob, text->data, text->size);
+
+	HOEDOWN_BUFPUTSL(ob, "</code></pre>\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 int
+rndr_codespan(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data)
+{
+	HOEDOWN_BUFPUTSL(ob, "<code>");
+	if (text) escape_html(ob, text->data, text->size);
+	HOEDOWN_BUFPUTSL(ob, "</code>");
+	return 1;
+}
+
+static int
+rndr_strikethrough(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<del>");
+	hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</del>");
+	return 1;
+}
+
+static int
+rndr_double_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<strong>");
+	hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</strong>");
+
+	return 1;
+}
+
+static int
+rndr_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size) return 0;
+	HOEDOWN_BUFPUTSL(ob, "<em>");
+	if (content) hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</em>");
+	return 1;
+}
+
+static int
+rndr_underline(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<u>");
+	hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</u>");
+
+	return 1;
+}
+
+static int
+rndr_highlight(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<mark>");
+	hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</mark>");
+
+	return 1;
+}
+
+static int
+rndr_quote(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (!content || !content->size)
+		return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<q>");
+	hoedown_buffer_put(ob, content->data, content->size);
+	HOEDOWN_BUFPUTSL(ob, "</q>");
+
+	return 1;
+}
+
+static int
+rndr_linebreak(hoedown_buffer *ob, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+	hoedown_buffer_puts(ob, USE_XHTML(state) ? "<br/>\n" : "<br>\n");
+	return 1;
+}
+
+static void
+rndr_header(hoedown_buffer *ob, const hoedown_buffer *content, int level, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+
+	if (ob->size)
+		hoedown_buffer_putc(ob, '\n');
+
+	if (level <= state->toc_data.nesting_level)
+		hoedown_buffer_printf(ob, "<h%d id=\"toc_%d\">", level, state->toc_data.header_count++);
+	else
+		hoedown_buffer_printf(ob, "<h%d>", level);
+
+	if (content) hoedown_buffer_put(ob, content->data, content->size);
+	hoedown_buffer_printf(ob, "</h%d>\n", level);
+}
+
+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
+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_listitem(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_list_flags flags, const hoedown_renderer_data *data)
+{
+	HOEDOWN_BUFPUTSL(ob, "<li>");
+	if (content) {
+		size_t size = content->size;
+		while (size && content->data[size - 1] == '\n')
+			size--;
+
+		hoedown_buffer_put(ob, content->data, size);
+	}
+	HOEDOWN_BUFPUTSL(ob, "</li>\n");
+}
+
+static void
+rndr_paragraph(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+	size_t i = 0;
+
+	if (ob->size) hoedown_buffer_putc(ob, '\n');
+
+	if (!content || !content->size)
+		return;
+
+	while (i < content->size && isspace(content->data[i])) i++;
+
+	if (i == content->size)
+		return;
+
+	HOEDOWN_BUFPUTSL(ob, "<p>");
+	if (state->flags & HOEDOWN_HTML_HARD_WRAP) {
+		size_t org;
+		while (i < content->size) {
+			org = i;
+			while (i < content->size && content->data[i] != '\n')
+				i++;
+
+			if (i > org)
+				hoedown_buffer_put(ob, content->data + org, i - org);
+
+			/*
+			 * do not insert a line break if this newline
+			 * is the last character on the paragraph
+			 */
+			if (i >= content->size - 1)
+				break;
+
+			rndr_linebreak(ob, data);
+			i++;
+		}
+	} else {
+		hoedown_buffer_put(ob, content->data + i, content->size - i);
+	}
+	HOEDOWN_BUFPUTSL(ob, "</p>\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_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 void
+rndr_hrule(hoedown_buffer *ob, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+	if (ob->size) hoedown_buffer_putc(ob, '\n');
+	hoedown_buffer_puts(ob, USE_XHTML(state) ? "<hr/>\n" : "<hr>\n");
+}
+
+static int
+rndr_image(hoedown_buffer *ob, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_buffer *alt, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+	if (!link || !link->size) return 0;
+
+	HOEDOWN_BUFPUTSL(ob, "<img src=\"");
+	escape_href(ob, link->data, link->size);
+	HOEDOWN_BUFPUTSL(ob, "\" alt=\"");
+
+	if (alt && alt->size)
+		escape_html(ob, alt->data, alt->size);
+
+	if (title && title->size) {
+		HOEDOWN_BUFPUTSL(ob, "\" title=\"");
+		escape_html(ob, title->data, title->size); }
+
+	hoedown_buffer_puts(ob, USE_XHTML(state) ? "\"/>" : "\">");
+	return 1;
+}
+
+static int
+rndr_raw_html(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+
+	/* ESCAPE overrides SKIP_HTML. It doesn't look to see if
+	 * there are any valid tags, just escapes 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;
+
+	hoedown_buffer_put(ob, text->data, text->size);
+	return 1;
+}
+
+static void
+rndr_table(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+    if (ob->size) hoedown_buffer_putc(ob, '\n');
+    HOEDOWN_BUFPUTSL(ob, "<table>\n");
+    hoedown_buffer_put(ob, content->data, content->size);
+    HOEDOWN_BUFPUTSL(ob, "</table>\n");
+}
+
+static void
+rndr_table_header(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+    if (ob->size) hoedown_buffer_putc(ob, '\n');
+    HOEDOWN_BUFPUTSL(ob, "<thead>\n");
+    hoedown_buffer_put(ob, content->data, content->size);
+    HOEDOWN_BUFPUTSL(ob, "</thead>\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 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_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
+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;
+}
+
+static void
+rndr_normal_text(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	if (content)
+		escape_html(ob, content->data, content->size);
+}
+
+static void
+rndr_footnotes(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state = data->opaque;
+
+	if (ob->size) hoedown_buffer_putc(ob, '\n');
+	HOEDOWN_BUFPUTSL(ob, "<div class=\"footnotes\">\n");
+	hoedown_buffer_puts(ob, USE_XHTML(state) ? "<hr/>\n" : "<hr>\n");
+	HOEDOWN_BUFPUTSL(ob, "<ol>\n");
+
+	if (content) hoedown_buffer_put(ob, content->data, content->size);
+
+	HOEDOWN_BUFPUTSL(ob, "\n</ol>\n</div>\n");
+}
+
+static void
+rndr_footnote_def(hoedown_buffer *ob, const hoedown_buffer *content, unsigned int num, const hoedown_renderer_data *data)
+{
+	size_t i = 0;
+	int pfound = 0;
+
+	/* insert anchor at the end of first paragraph block */
+	if (content) {
+		while ((i+3) < content->size) {
+			if (content->data[i++] != '<') continue;
+			if (content->data[i++] != '/') continue;
+			if (content->data[i++] != 'p' && content->data[i] != 'P') continue;
+			if (content->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, content->data, i);
+		hoedown_buffer_printf(ob, "&nbsp;<a href=\"#fnref%d\" rev=\"footnote\">&#8617;</a>", num);
+		hoedown_buffer_put(ob, content->data + i, content->size - i);
+	} else if (content) {
+		hoedown_buffer_put(ob, content->data, content->size);
+	}
+	HOEDOWN_BUFPUTSL(ob, "</li>\n");
+}
+
+static int
+rndr_footnote_ref(hoedown_buffer *ob, unsigned int num, const hoedown_renderer_data *data)
+{
+	hoedown_buffer_printf(ob, "<sup id=\"fnref%d\"><a href=\"#fn%d\" rel=\"footnote\">%d</a></sup>", num, num, num);
+	return 1;
+}
+
+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
+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");
+	}
+}
+
+static int
+toc_link(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_renderer_data *data)
+{
+	if (content && content->size) hoedown_buffer_put(ob, content->data, content->size);
+	return 1;
+}
+
+static void
+toc_finalize(hoedown_buffer *ob, int inline_render, const hoedown_renderer_data *data)
+{
+	hoedown_html_renderer_state *state;
+
+	if (inline_render)
+		return;
+
+	state = data->opaque;
+
+	while (state->toc_data.current_level > 0) {
+		HOEDOWN_BUFPUTSL(ob, "</li>\n</ul>\n");
+		state->toc_data.current_level--;
+	}
+
+	state->toc_data.header_count = 0;
+}
+
+hoedown_renderer *
+hoedown_html_toc_renderer_new(int nesting_level)
+{
+	static const hoedown_renderer cb_default = {
+		NULL,
+
+		NULL,
+		NULL,
+		toc_header,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+
+		NULL,
+		rndr_codespan,
+		rndr_double_emphasis,
+		rndr_emphasis,
+		rndr_underline,
+		rndr_highlight,
+		rndr_quote,
+		NULL,
+		NULL,
+		toc_link,
+		rndr_triple_emphasis,
+		rndr_strikethrough,
+		rndr_superscript,
+		NULL,
+		NULL,
+		NULL,
+
+		NULL,
+		rndr_normal_text,
+
+		NULL,
+		toc_finalize
+	};
+
+	hoedown_html_renderer_state *state;
+	hoedown_renderer *renderer;
+
+	/* Prepare the state pointer */
+	state = hoedown_malloc(sizeof(hoedown_html_renderer_state));
+	memset(state, 0x0, sizeof(hoedown_html_renderer_state));
+
+	state->toc_data.nesting_level = nesting_level;
+
+	/* Prepare the renderer */
+	renderer = hoedown_malloc(sizeof(hoedown_renderer));
+	memcpy(renderer, &cb_default, sizeof(hoedown_renderer));
+
+	renderer->opaque = state;
+	return renderer;
+}
+
+hoedown_renderer *
+hoedown_html_renderer_new(hoedown_html_flags render_flags, int nesting_level)
+{
+	static const hoedown_renderer cb_default = {
+		NULL,
+
+		rndr_blockcode,
+		rndr_blockquote,
+		rndr_header,
+		rndr_hrule,
+		rndr_list,
+		rndr_listitem,
+		rndr_paragraph,
+		rndr_table,
+		rndr_table_header,
+		rndr_table_body,
+		rndr_tablerow,
+		rndr_tablecell,
+		rndr_footnotes,
+		rndr_footnote_def,
+		rndr_raw_block,
+
+		rndr_autolink,
+		rndr_codespan,
+		rndr_double_emphasis,
+		rndr_emphasis,
+		rndr_underline,
+		rndr_highlight,
+		rndr_quote,
+		rndr_image,
+		rndr_linebreak,
+		rndr_link,
+		rndr_triple_emphasis,
+		rndr_strikethrough,
+		rndr_superscript,
+		rndr_footnote_ref,
+		rndr_math,
+		rndr_raw_html,
+
+		NULL,
+		rndr_normal_text,
+
+		NULL,
+		NULL
+	};
+
+	hoedown_html_renderer_state *state;
+	hoedown_renderer *renderer;
+
+	/* Prepare the state pointer */
+	state = hoedown_malloc(sizeof(hoedown_html_renderer_state));
+	memset(state, 0x0, sizeof(hoedown_html_renderer_state));
+
+	state->flags = render_flags;
+	state->toc_data.nesting_level = nesting_level;
+
+	/* Prepare the renderer */
+	renderer = hoedown_malloc(sizeof(hoedown_renderer));
+	memcpy(renderer, &cb_default, sizeof(hoedown_renderer));
+
+	if (render_flags & HOEDOWN_HTML_SKIP_HTML || render_flags & HOEDOWN_HTML_ESCAPE)
+		renderer->blockhtml = NULL;
+
+	renderer->opaque = state;
+	return renderer;
+}
+
+void
+hoedown_html_renderer_free(hoedown_renderer *renderer)
+{
+	free(renderer->opaque);
+	free(renderer);
+}
-- 
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