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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 <unistd.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;
- 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", "emphasis inside words", 1, 1, 1, MKD_STRICT },
- { "strict", "emphasis inside words", 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 },
- } ;
-
- #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 i;
-
- if ( byname ) {
- qsort(opts, NR(opts), sizeof(opts[0]), (stfu)sort_by_name);
-
- for (i=0; i < NR(opts); i++)
- if ( ! 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);
- }
- }
- }
-
-
- int
- 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 0;
- }
- return 1;
- }
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