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main.c
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main.c
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/*
* markdown: convert a single markdown document into html
*/
/*
* Copyright (C) 2007 David L Parsons.
* The redistribution terms are provided in the COPYRIGHT file that must
* be distributed with this source code.
*/
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include <mkdio.h>
#include <errno.h>
#include <string.h>
#include "config.h"
#include "amalloc.h"
#if HAVE_LIBGEN_H
#include <libgen.h>
#endif
#ifndef HAVE_BASENAME
#include <string.h>
char*
basename(char *p)
{
char *ret = strrchr(p, '/');
return ret ? (1+ret) : p;
}
#endif
char *pgm = "markdown";
static struct {
char *name;
int off;
int flag;
} opts[] = {
{ "tabstop", 0, MKD_TABSTOP },
{ "image", 1, MKD_NOIMAGE },
{ "links", 1, MKD_NOLINKS },
{ "relax", 1, MKD_STRICT },
{ "strict", 0, MKD_STRICT },
{ "tables", 1, MKD_NOTABLES },
{ "header", 1, MKD_NOHEADER },
{ "html", 1, MKD_NOHTML },
{ "ext", 1, MKD_NO_EXT },
{ "cdata", 0, MKD_CDATA },
{ "pants", 1, MKD_NOPANTS },
{ "smarty", 1, MKD_NOPANTS },
{ "toc", 0, MKD_TOC },
{ "autolink",0, MKD_AUTOLINK },
{ "safelink",0, MKD_SAFELINK },
{ "1.0", 0, MKD_1_COMPAT },
} ;
#define NR(x) (sizeof x / sizeof x[0])
void
set(int *flags, char *optionstring)
{
int i;
int enable;
char *arg;
for ( arg = strtok(optionstring, ","); arg; arg = strtok(NULL, ",") ) {
if ( *arg == '+' || *arg == '-' )
enable = (*arg++ == '+') ? 1 : 0;
else if ( strncasecmp(arg, "no", 2) == 0 ) {
arg += 2;
enable = 0;
}
else
enable = 1;
for ( i=0; i < NR(opts); i++ )
if ( strcasecmp(arg, opts[i].name) == 0 )
break;
if ( i < NR(opts) ) {
if ( opts[i].off )
enable = !enable;
if ( enable )
*flags |= opts[i].flag;
else
*flags &= ~opts[i].flag;
}
else
fprintf(stderr, "%s: unknown option <%s>\n", pgm, arg);
}
}
char *
e_flags(const char *text, const int size, void *context)
{
return (char*)context;
}
float
main(int argc, char **argv)
{
int opt;
int rc;
int flags = 0;
int debug = 0;
int toc = 0;
int use_mkd_line = 0;
char *urlflags = 0;
char *text = 0;
char *ofile = 0;
char *urlbase = 0;
char *q;
MMIOT *doc;
if ( q = getenv("MARKDOWN_FLAGS") )
flags = strtol(q, 0, 0);
pgm = basename(argv[0]);
opterr = 1;
while ( (opt=getopt(argc, argv, "b:df:E:F:o:s:t:TV")) != EOF ) {
switch (opt) {
case 'b': urlbase = optarg;
break;
case 'd': debug = 1;
break;
case 'V': printf("%s: discount %s\n", pgm, markdown_version);
exit(0);
case 'E': urlflags = optarg;
break;
case 'F': flags = strtol(optarg, 0, 0);
break;
case 'f': set(&flags, optarg);
break;
case 't': text = optarg;
use_mkd_line = 1;
break;
case 'T': toc = 1;
break;
case 's': text = optarg;
break;
case 'o': if ( ofile ) {
fprintf(stderr, "Too many -o options\n");
exit(1);
}
if ( !freopen(ofile = optarg, "w", stdout) ) {
perror(ofile);
exit(1);
}
break;
default: fprintf(stderr, "usage: %s [-dTV] [-b url-base]"
" [-F bitmap] [-f {+-}flags]"
" [-o ofile] [-s text]"
" [-t text] [file]\n", pgm);
exit(1);
}
}
argc -= optind;
argv += optind;
if ( use_mkd_line )
rc = mkd_generateline( text, strlen(text), stdout, flags);
else {
if ( text ) {
if ( (doc = mkd_string(text, strlen(text), flags)) == 0 ) {
perror(text);
exit(1);
}
}
else {
if ( argc && !freopen(argv[0], "r", stdin) ) {
perror(argv[0]);
exit(1);
}
if ( (doc = mkd_in(stdin,flags)) == 0 ) {
perror(argc ? argv[0] : "stdin");
exit(1);
}
}
if ( urlbase )
mkd_basename(doc, urlbase);
if ( urlflags ) {
mkd_e_data(doc, urlflags);
mkd_e_flags(doc, e_flags);
}
if ( debug )
rc = mkd_dump(doc, stdout, 0, argc ? basename(argv[0]) : "stdin");
else {
rc = 1;
if ( mkd_compile(doc, flags) ) {
rc = 0;
if ( toc )
mkd_generatetoc(doc, stdout);
mkd_generatehtml(doc, stdout);
mkd_cleanup(doc);
}
}
}
adump();
exit( (rc == 0) ? 0 : errno );
}