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/* markdown: a C implementation of John Gruber's Markdown markup language.
*
* Copyright (C) 2007-2011 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 <mkdio.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include "config.h"
#include "amalloc.h"
#if HAVE_LIBGEN_H
#include <libgen.h>
#endif
static struct _opt {
char *name;
char *desc;
int off;
int skip; /* this opt is a synonym */
int sayenable;
mkd_flag_t flag;
} opts[] = {
{ "tabstop", "default (4-space) tabstops", 0, 0, 1, MKD_TABSTOP },
{ "image", "images", 1, 0, 1, MKD_NOIMAGE },
{ "links", "links", 1, 0, 1, MKD_NOLINKS },
{ "relax", "Markdown.pl compatibility", 1, 1, 1, MKD_STRICT },
{ "strict", "Markdown.pl compatibility", 0, 0, 1, MKD_STRICT },
{ "tables", "tables", 1, 0, 1, MKD_NOTABLES },
{ "header", "pandoc-style headers", 1, 0, 1, MKD_NOHEADER },
{ "html", "raw html", 1, 0, 1, MKD_NOHTML },
{ "ext", "extended protocols", 1, 0, 1, MKD_NO_EXT },
{ "cdata", "generate cdata", 0, 0, 0, MKD_CDATA },
{ "smarty", "smartypants", 1, 0, 1, MKD_NOPANTS },
{ "pants", "smartypants", 1, 1, 1, MKD_NOPANTS },
{ "toc", "tables of contents", 0, 0, 1, MKD_TOC },
{ "autolink", "autolinking", 0, 0, 1, MKD_AUTOLINK },
{ "safelink", "safe links", 0, 0, 1, MKD_SAFELINK },
{ "strikethrough", "strikethrough", 1, 0, 1, MKD_NOSTRIKETHROUGH },
{ "del", "strikethrough", 1, 1, 1, MKD_NOSTRIKETHROUGH },
{ "superscript", "superscript", 1, 0, 1, MKD_NOSUPERSCRIPT },
{ "emphasis", "emphasis inside words", 0, 0, 1, MKD_NORELAXED },
{ "divquote", ">%class% blockquotes", 1, 0, 1, MKD_NODIVQUOTE },
{ "alphalist", "alpha lists", 1, 0, 1, MKD_NOALPHALIST },
{ "definitionlist","definition lists", 1, 0, 1, MKD_NODLIST },
{ "1.0", "markdown 1.0 compatibility", 0, 0, 1, MKD_1_COMPAT },
{ "footnotes", "markdown extra footnotes", 0, 0, 1, MKD_EXTRA_FOOTNOTE },
{ "footnote", "markdown extra footnotes", 0, 1, 1, MKD_EXTRA_FOOTNOTE },
{ "style", "extract style blocks", 1, 0, 1, MKD_NOSTYLE },
{ "dldiscount", "discount-style definition lists", 1, 0, 1, MKD_NODLDISCOUNT },
{ "dlextra", "extra-style definition lists", 0, 0, 1, MKD_DLEXTRA },
{ "fencedcode", "fenced code blocks", 0, 0, 1, MKD_FENCEDCODE },
{ "idanchor", "id= anchors in TOC", 0, 0, 1, MKD_IDANCHOR },
{ "githubtags", "permit - and _ in element names", 0, 0, 0, MKD_GITHUBTAGS },
{ "urlencodedanchor", "html5-style anchors", 0, 0, 0, MKD_URLENCODEDANCHOR },
{ "html5anchor", "html5-style anchors", 0, 1, 0, MKD_URLENCODEDANCHOR },
{ "latex", "handle LaTeX escapes", 0, 0, 1, MKD_LATEX },
{ "explicitlist", "do not merge adjacent numeric/bullet lists", 0, 0, 1, MKD_EXPLICITLIST },
} ;
#define NR(x) (sizeof x / sizeof x[0])
typedef int (*stfu)(const void *, const void *);
int
sort_by_name(struct _opt *a, struct _opt *b)
{
return strcmp(a->name,b->name);
}
int
sort_by_flag(struct _opt *a, struct _opt *b)
{
return a->flag - b->flag;
}
void
show_flags(int byname, int verbose)
{
int i;
if ( byname ) {
qsort(opts, NR(opts), sizeof(opts[0]), (stfu)sort_by_name);
for (i=0; i < NR(opts); i++)
if ( verbose || !opts[i].skip )
fprintf(stderr, "%16s : %s\n", opts[i].name, opts[i].desc);
}
else {
qsort(opts, NR(opts), sizeof(opts[0]), (stfu)sort_by_flag);
for (i=0; i < NR(opts); i++)
if ( !opts[i].skip ) {
fprintf(stderr, "%08lx : ", (long)opts[i].flag);
if ( opts[i].sayenable )
fprintf(stderr, opts[i].off ? "disable " : "enable ");
fprintf(stderr, "%s\n", opts[i].desc);
}
}
}
char *
set_flag(mkd_flag_t *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
return arg;
}
return 0;
}
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