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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "cmark.h"
#include "node.h"
#if defined(__OpenBSD__)
# include <sys/param.h>
# if OpenBSD >= 201605
# define USE_PLEDGE
# include <unistd.h>
# endif
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <io.h>
#include <fcntl.h>
#endif
typedef enum {
FORMAT_NONE,
FORMAT_HTML,
FORMAT_XML,
FORMAT_MAN,
FORMAT_COMMONMARK,
FORMAT_LATEX
} writer_format;
void print_usage() {
printf("Usage: cmark [FILE*]\n");
printf("Options:\n");
printf(" --to, -t FORMAT Specify output format (html, xml, man, "
"commonmark, latex)\n");
printf(" --width WIDTH Specify wrap width (default 0 = nowrap)\n");
printf(" --sourcepos Include source position attribute\n");
printf(" --hardbreaks Treat newlines as hard line breaks\n");
printf(" --nobreaks Render soft line breaks as spaces\n");
printf(" --safe Omit raw HTML and dangerous URLs\n");
printf(" --unsafe Render raw HTML and dangerous URLs\n");
printf(" --smart Use smart punctuation\n");
printf(" --validate-utf8 Replace invalid UTF-8 sequences with U+FFFD\n");
printf(" --help, -h Print usage information\n");
printf(" --version Print version\n");
}
static void print_document(cmark_node *document, writer_format writer,
int options, int width) {
char *result;
switch (writer) {
case FORMAT_HTML:
result = cmark_render_html(document, options);
break;
case FORMAT_XML:
result = cmark_render_xml(document, options);
break;
case FORMAT_MAN:
result = cmark_render_man(document, options, width);
break;
case FORMAT_COMMONMARK:
result = cmark_render_commonmark(document, options, width);
break;
case FORMAT_LATEX:
result = cmark_render_latex(document, options, width);
break;
default:
fprintf(stderr, "Unknown format %d\n", writer);
exit(1);
}
printf("%s", result);
document->mem->free(result);
}
int main(int argc, char *argv[]) {
int i, numfps = 0;
int *files;
char buffer[4096];
cmark_parser *parser;
size_t bytes;
cmark_node *document;
int width = 0;
char *unparsed;
writer_format writer = FORMAT_HTML;
int options = CMARK_OPT_DEFAULT;
#ifdef USE_PLEDGE
if (pledge("stdio rpath", NULL) != 0) {
perror("pledge");
return 1;
}
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
_setmode(_fileno(stdin), _O_BINARY);
_setmode(_fileno(stdout), _O_BINARY);
#endif
files = (int *)calloc(argc, sizeof(*files));
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "--version") == 0) {
printf("cmark %s", CMARK_VERSION_STRING);
printf(" - CommonMark converter\n(C) 2014-2016 John MacFarlane\n");
exit(0);
} else if (strcmp(argv[i], "--sourcepos") == 0) {
options |= CMARK_OPT_SOURCEPOS;
} else if (strcmp(argv[i], "--hardbreaks") == 0) {
options |= CMARK_OPT_HARDBREAKS;
} else if (strcmp(argv[i], "--nobreaks") == 0) {
options |= CMARK_OPT_NOBREAKS;
} else if (strcmp(argv[i], "--smart") == 0) {
options |= CMARK_OPT_SMART;
} else if (strcmp(argv[i], "--safe") == 0) {
options |= CMARK_OPT_SAFE;
} else if (strcmp(argv[i], "--unsafe") == 0) {
options |= CMARK_OPT_UNSAFE;
} else if (strcmp(argv[i], "--validate-utf8") == 0) {
options |= CMARK_OPT_VALIDATE_UTF8;
} else if ((strcmp(argv[i], "--help") == 0) ||
(strcmp(argv[i], "-h") == 0)) {
print_usage();
exit(0);
} else if (strcmp(argv[i], "--width") == 0) {
i += 1;
if (i < argc) {
width = (int)strtol(argv[i], &unparsed, 10);
if (unparsed && strlen(unparsed) > 0) {
fprintf(stderr, "failed parsing width '%s' at '%s'\n", argv[i],
unparsed);
exit(1);
}
} else {
fprintf(stderr, "--width requires an argument\n");
exit(1);
}
} else if ((strcmp(argv[i], "-t") == 0) || (strcmp(argv[i], "--to") == 0)) {
i += 1;
if (i < argc) {
if (strcmp(argv[i], "man") == 0) {
writer = FORMAT_MAN;
} else if (strcmp(argv[i], "html") == 0) {
writer = FORMAT_HTML;
} else if (strcmp(argv[i], "xml") == 0) {
writer = FORMAT_XML;
} else if (strcmp(argv[i], "commonmark") == 0) {
writer = FORMAT_COMMONMARK;
} else if (strcmp(argv[i], "latex") == 0) {
writer = FORMAT_LATEX;
} else {
fprintf(stderr, "Unknown format %s\n", argv[i]);
exit(1);
}
} else {
fprintf(stderr, "No argument provided for %s\n", argv[i - 1]);
exit(1);
}
} else if (*argv[i] == '-') {
print_usage();
exit(1);
} else { // treat as file argument
files[numfps++] = i;
}
}
parser = cmark_parser_new(options);
for (i = 0; i < numfps; i++) {
FILE *fp = fopen(argv[files[i]], "rb");
if (fp == NULL) {
fprintf(stderr, "Error opening file %s: %s\n", argv[files[i]],
strerror(errno));
exit(1);
}
while ((bytes = fread(buffer, 1, sizeof(buffer), fp)) > 0) {
cmark_parser_feed(parser, buffer, bytes);
if (bytes < sizeof(buffer)) {
break;
}
}
fclose(fp);
}
if (numfps == 0) {
while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0) {
cmark_parser_feed(parser, buffer, bytes);
if (bytes < sizeof(buffer)) {
break;
}
}
}
#ifdef USE_PLEDGE
if (pledge("stdio", NULL) != 0) {
perror("pledge");
return 1;
}
#endif
document = cmark_parser_finish(parser);
cmark_parser_free(parser);
print_document(document, writer, options, width);
cmark_node_free(document);
free(files);
return 0;
}
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