NAME

     markdown — process Markdown documents

LIBRARY

     Markdown (libmarkdown, -lmarkdown)

SYNOPSIS

     #include <mkdio.h>

     MMIOT
     *mkd_in(FILE *input, int flags);

     MMIOT
     *mkd_string(char *string, int size, int flags);

     int
     markdown(MMIOT *doc, FILE *output, int flags);

DESCRIPTION

     These functions convert Markdown documents and strings into HTML.  markdown() processes an
     entire document, while mkd_text() processes a single string.

     To process a file, you pass a FILE* to mkd_in(), and if it returns a nonzero value you pass
     that in to markdown(), which then writes the converted document to the specified FILE*.  If
     your input has already been written into a string (generated input or a file opened with
     mmap(2)) you can feed that string to mkd_string() and pass its return value to markdown.()

     Markdown() accepts the following flag values (or-ed together if needed) to restrict how it
     processes input:
     MKD_NOLINKS          Don't do link processing, block <a> tags.
     MKD_NOIMAGE          Don't do image processing, block <img>.
     MKD_NOPANTS          Don't run smartypants().
     MKD_NOHTML           Don't allow raw html through AT ALL
     MKD_STRICT           Disable superscript and relaxed emphasis.
     MKD_TAGTEXT          Process text to put inside an html tag (ID=, NAME=, <title>, &tc); no
                          <em>, no <bold>, no html or [] expansion.
     MKD_NO_EXT           Don't allow pseudo-protocols.
     MKD_CDATA            Generate code for xml ![CDATA[...]].
     MKD_NOSUPERSCRIPT    Don't generate superscripts.  Emphasis happens _everywhere_
     MKD_NOTABLES         Disallow tables.
     MKD_NOSTRIKETHROUGH  Forbid ~~strikethrough~~.
     MKD_TOC              Do table-of-contents processing.
     MKD_1_COMPAT         Compatibility with MarkdownTest_1.0
     MKD_AUTOLINK         Make http://foo.com into a link even without <> s.
     MKD_SAFELINK         Paranoid check for link protocol.
     MKD_NOHEADER         Don't process header blocks.
     MKD_TABSTOP          Expand tabs to 4 spaces.
     MKD_NODIVQUOTE       Forbid >%class% blocks.
     MKD_NOALPHALIST      Forbid alphabetic lists.
     MKD_NODLIST          Forbid definition lists.
     MKD_NODLDISCOUNT     Disable the discount definition list syntax style.
     MKD_DLEXTRA          Enable the extra definition list syntax style.
     MKD_EXTRA_FOOTNOTE   Enable markdown extra-style footnotes.
     MKD_NOSTYLE          Do not extract (omit) <style/> blocks from the output.
     MKD_FENCEDCODE       Allow fenced code blocks.
     MKD_IDANCHOR         Use id= anchors instead of <a name=/> for table-of-contents links.
     MKD_GITHUBTAGS       Allow underscore and dash in passed through element names.
     MKD_URLENCODEDANCHOR
                          Use html5 encoding for multibyte and nonalphanumeric characters rather
                          than hex expansion in toc links.

RETURN VALUES

     markdown() returns 0 on success, 1 on failure.  The mkd_in() and mkd_string() functions
     return a MMIOT* on success, null on failure.

SEE ALSO

     markdown(1), mkd-callbacks(3), mkd-functions(3), mkd-line(3), markdown(7),
     mkd-extensions(7), mmap(2).

     http://daringfireball.net/projects/markdown/syntax

BUGS

     Error handling is minimal at best.

     The MMIOT created by mkd_string() is deleted by the markdown function.