hoedown/examples/hoedown.c
2013-10-02 14:12:16 -05:00

58 lines
1.2 KiB
C

#include "markdown.h"
#include "html.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define READ_UNIT 1024
#define OUTPUT_UNIT 64
int
main(int argc, char **argv)
{
hoedown_buffer *ib, *ob;
FILE *in = stdin;
hoedown_callbacks callbacks;
hoedown_html_renderopt options;
struct hoedown_markdown *markdown;
/* opening the file if given from the command line */
if (argc > 1) {
in = fopen(argv[1], "r");
if (!in) {
fprintf(stderr, "Unable to open input file \"%s\": %s\n", argv[1], strerror(errno));
return 1;
}
}
/* reading everything */
ib = hoedown_buffer_new(READ_UNIT);
while (!feof(in) && !ferror(in)) {
hoedown_buffer_grow(ib, ib->size + READ_UNIT);
ib->size += fread(ib->data + ib->size, 1, READ_UNIT, in);
}
if (in != stdin)
fclose(in);
/* performing markdown parsing */
ob = hoedown_buffer_new(OUTPUT_UNIT);
hoedown_html_renderer(&callbacks, &options, 0, 0);
markdown = hoedown_markdown_new(0, 16, &callbacks, &options);
hoedown_markdown_render(ob, ib->data, ib->size, markdown);
hoedown_markdown_free(markdown);
/* writing the result to stdout */
(void)fwrite(ob->data, 1, ob->size, stdout);
/* cleanup */
hoedown_buffer_free(ib);
hoedown_buffer_free(ob);
return ferror(stdout);
}