NAME¶

lowdown_tree_rndr — render Markdown into debugging output

LIBRARY¶

library “liblowdown”

SYNOPSIS¶

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

int
lowdown_tree_rndr(struct lowdown_buf *out, const struct lowdown_node *n);

DESCRIPTION¶

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

The output consists of an UTF-8 tree. The format is not standardised and subject to change.

Unlike other renderers, lowdown_tree_rndr() accepts no options and thus has no context.

RETURN VALUES¶

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

EXAMPLES¶

The following parses b of length bsz and outputs the parse tree.

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 (!lowdown_tree_rndr(out, n))
	err(1, NULL);

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

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

SEE ALSO¶

lowdown(3)