");
+ }
+}
+
+static void
+render_open_code_block(MD_HTML* r, const MD_BLOCK_CODE_DETAIL* det)
+{
+ RENDER_VERBATIM(r, "lang.text != NULL) {
+ RENDER_VERBATIM(r, " class=\"language-");
+ render_attribute(r, &det->lang, render_html_escaped);
+ RENDER_VERBATIM(r, "\"");
+ }
+
+ RENDER_VERBATIM(r, ">");
+}
+
+static void
+render_open_td_block(MD_HTML* r, const MD_CHAR* cell_type, const MD_BLOCK_TD_DETAIL* det)
+{
+ RENDER_VERBATIM(r, "<");
+ RENDER_VERBATIM(r, cell_type);
+
+ switch(det->align) {
+ case MD_ALIGN_LEFT: RENDER_VERBATIM(r, " align=\"left\">"); break;
+ case MD_ALIGN_CENTER: RENDER_VERBATIM(r, " align=\"center\">"); break;
+ case MD_ALIGN_RIGHT: RENDER_VERBATIM(r, " align=\"right\">"); break;
+ default: RENDER_VERBATIM(r, ">"); break;
+ }
+}
+
+static void
+render_open_a_span(MD_HTML* r, const MD_SPAN_A_DETAIL* det)
+{
+ RENDER_VERBATIM(r, "href, render_url_escaped);
+
+ if(det->title.text != NULL) {
+ RENDER_VERBATIM(r, "\" title=\"");
+ render_attribute(r, &det->title, render_html_escaped);
+ }
+
+ RENDER_VERBATIM(r, "\">");
+}
+
+static void
+render_open_img_span(MD_HTML* r, const MD_SPAN_IMG_DETAIL* det)
+{
+ RENDER_VERBATIM(r, "![](\"");)
src, render_url_escaped);
+
+ RENDER_VERBATIM(r, "\" alt=\"");
+}
+
+static void
+render_close_img_span(MD_HTML* r, const MD_SPAN_IMG_DETAIL* det)
+{
+ if(det->title.text != NULL) {
+ RENDER_VERBATIM(r, "\" title=\"");
+ render_attribute(r, &det->title, render_html_escaped);
+ }
+
+ RENDER_VERBATIM(r, (r->flags & MD_HTML_FLAG_XHTML) ? "\" />" : "\">");
+}
+
+static void
+render_open_wikilink_span(MD_HTML* r, const MD_SPAN_WIKILINK_DETAIL* det)
+{
+ RENDER_VERBATIM(r, "target, render_html_escaped);
+
+ RENDER_VERBATIM(r, "\">");
+}
+
+
+/**************************************
+ *** HTML renderer implementation ***
+ **************************************/
+
+static int
+enter_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata)
+{
+ static const MD_CHAR* head[6] = { "", "", "", "", "", "" };
+ MD_HTML* r = (MD_HTML*) userdata;
+
+ switch(type) {
+ case MD_BLOCK_DOC: /* noop */ break;
+ case MD_BLOCK_QUOTE: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_UL: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_OL: render_open_ol_block(r, (const MD_BLOCK_OL_DETAIL*)detail); break;
+ case MD_BLOCK_LI: render_open_li_block(r, (const MD_BLOCK_LI_DETAIL*)detail); break;
+ case MD_BLOCK_HR: RENDER_VERBATIM(r, (r->flags & MD_HTML_FLAG_XHTML) ? "
\n" : "
\n"); break;
+ case MD_BLOCK_H: RENDER_VERBATIM(r, head[((MD_BLOCK_H_DETAIL*)detail)->level - 1]); break;
+ case MD_BLOCK_CODE: render_open_code_block(r, (const MD_BLOCK_CODE_DETAIL*) detail); break;
+ case MD_BLOCK_HTML: /* noop */ break;
+ case MD_BLOCK_P: RENDER_VERBATIM(r, ""); break;
+ case MD_BLOCK_TABLE: RENDER_VERBATIM(r, "
\n"); break;
+ case MD_BLOCK_THEAD: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TBODY: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TR: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TH: render_open_td_block(r, "th", (MD_BLOCK_TD_DETAIL*)detail); break;
+ case MD_BLOCK_TD: render_open_td_block(r, "td", (MD_BLOCK_TD_DETAIL*)detail); break;
+ }
+
+ return 0;
+}
+
+static int
+leave_block_callback(MD_BLOCKTYPE type, void* detail, void* userdata)
+{
+ static const MD_CHAR* head[6] = { "\n", "\n", "\n", "\n", "\n", "\n" };
+ MD_HTML* r = (MD_HTML*) userdata;
+
+ switch(type) {
+ case MD_BLOCK_DOC: /*noop*/ break;
+ case MD_BLOCK_QUOTE: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_UL: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_OL: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_LI: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_HR: /*noop*/ break;
+ case MD_BLOCK_H: RENDER_VERBATIM(r, head[((MD_BLOCK_H_DETAIL*)detail)->level - 1]); break;
+ case MD_BLOCK_CODE: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_HTML: /* noop */ break;
+ case MD_BLOCK_P: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TABLE: RENDER_VERBATIM(r, "
\n"); break;
+ case MD_BLOCK_THEAD: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TBODY: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TR: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TH: RENDER_VERBATIM(r, "\n"); break;
+ case MD_BLOCK_TD: RENDER_VERBATIM(r, "\n"); break;
+ }
+
+ return 0;
+}
+
+static int
+enter_span_callback(MD_SPANTYPE type, void* detail, void* userdata)
+{
+ MD_HTML* r = (MD_HTML*) userdata;
+ int inside_img = (r->image_nesting_level > 0);
+
+ /* We are inside a Markdown image label. Markdown allows to use any emphasis
+ * and other rich contents in that context similarly as in any link label.
+ *
+ * However, unlike in the case of links (where that contents becomescontents
+ * of the ... tag), in the case of images the contents is supposed to
+ * fall into the attribute alt: ![...]()
.
+ *
+ * In that context we naturally cannot output nested HTML tags. So lets
+ * suppress them and only output the plain text (i.e. what falls into text()
+ * callback).
+ *
+ * CommonMark specification declares this a recommended practice for HTML
+ * output.
+ */
+ if(type == MD_SPAN_IMG)
+ r->image_nesting_level++;
+ if(inside_img)
+ return 0;
+
+ switch(type) {
+ case MD_SPAN_EM: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_STRONG: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_U: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_A: render_open_a_span(r, (MD_SPAN_A_DETAIL*) detail); break;
+ case MD_SPAN_IMG: render_open_img_span(r, (MD_SPAN_IMG_DETAIL*) detail); break;
+ case MD_SPAN_CODE: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_DEL: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_LATEXMATH: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_LATEXMATH_DISPLAY: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_WIKILINK: render_open_wikilink_span(r, (MD_SPAN_WIKILINK_DETAIL*) detail); break;
+ }
+
+ return 0;
+}
+
+static int
+leave_span_callback(MD_SPANTYPE type, void* detail, void* userdata)
+{
+ MD_HTML* r = (MD_HTML*) userdata;
+
+ if(type == MD_SPAN_IMG)
+ r->image_nesting_level--;
+ if(r->image_nesting_level > 0)
+ return 0;
+
+ switch(type) {
+ case MD_SPAN_EM: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_STRONG: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_U: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_A: RENDER_VERBATIM(r, "
"); break;
+ case MD_SPAN_IMG: render_close_img_span(r, (MD_SPAN_IMG_DETAIL*) detail); break;
+ case MD_SPAN_CODE: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_DEL: RENDER_VERBATIM(r, ""); break;
+ case MD_SPAN_LATEXMATH: /*fall through*/
+ case MD_SPAN_LATEXMATH_DISPLAY: RENDER_VERBATIM(r, "
-