LOWDOWN_HTML_RNDR(3) Library Functions Manual LOWDOWN_HTML_RNDR(3)

lowdown_html_rndrrender Markdown into HTML

library “liblowdown”

#include <sys/queue.h>
#include <stdio.h>
#include <lowdown.h>

int
lowdown_html_rndr(struct lowdown_buf *out, void *arg, const struct lowdown_node *n);

Renders a node tree n created by lowdown_doc_parse(3) or lowdown_diff(3) using the HTML renderer arg as returned by lowdown_html_new(3). The output is written into out, which must be initialised and freed by the caller.

The output consists of a UTF-8 HTML5 document.

Returns zero on failure to allocate memory, non-zero on success.

The following parses b of length bsz and outputs in HTML format.

struct lowdown_buf *out;
struct lowdown_doc *doc;
struct lowdown_node *n;
void *rndr;

if ((doc = lowdown_doc_new(NULL)) == NULL)
	err(1, NULL);
if ((n = lowdown_doc_parse(doc, NULL, b, bsz, NULL)) == NULL)
	err(1, NULL);
if ((out = lowdown_buf_new(256)) == NULL)
	err(1, NULL);
if ((rndr = lowdown_html_new(NULL)) == NULL)
	err(1, NULL);
if (!lowdown_html_rndr(out, rndr, n))
	err(1, NULL);

fwrite(out->data, 1, out->size, stdout);

lowdown_html_free(rndr);
lowdown_buf_free(out);
lowdown_node_free(n);
lowdown_doc_free(doc);

lowdown(3), lowdown_html_free(3), lowdown_html_new(3)

The referenced HTML5 standard is HTML5.2. Output is compatible with prior HTML5 standards.

November 8, 2023 OpenBSD 7.4