hoedown/examples/sundown.c

82 lines
2 KiB
C

/*
* Copyright (c) 2011, Vicent Marti
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "markdown.h"
#include "html.h"
#include "buffer.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define READ_UNIT 1024
#define OUTPUT_UNIT 64
/* main • main function, interfacing STDIO with the parser */
int
main(int argc, char **argv)
{
struct buf *ib, *ob;
int ret;
FILE *in = stdin;
struct mkd_renderer renderer;
struct html_renderopt options;
size_t i, iterations = 1;
/* 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 = bufnew(READ_UNIT);
bufgrow(ib, READ_UNIT);
while ((ret = fread(ib->data + ib->size, 1, ib->asize - ib->size, in)) > 0) {
ib->size += ret;
bufgrow(ib, ib->size + READ_UNIT);
}
if (in != stdin)
fclose(in);
/* performing markdown parsing */
ob = bufnew(OUTPUT_UNIT);
for (i = 0; i < iterations; ++i) {
ob->size = 0;
sdhtml_renderer(&renderer, &options, 0);
sd_markdown(ob, ib, &renderer, ~0);
}
/* writing the result to stdout */
ret = fwrite(ob->data, 1, ob->size, stdout);
/* cleanup */
bufrelease(ib);
bufrelease(ob);
return (ret < 0) ? -1 : 0;
}
/* vim: set filetype=c: */