mxmldoc.c

/*#define DEBUG 1*/
/*
 * Documentation generator using Mini-XML, a small XML file parsing
 * library.
 *
 * Copyright 2003-2017 by Michael R Sweet.
 *
 * These coded instructions, statements, and computer programs are the
 * property of Michael R Sweet and are protected by Federal copyright
 * law.  Distribution and use rights are outlined in the file "COPYING"
 * which should have been included with this file.  If this file is
 * missing or damaged, see the license at:
 *
 *     https://michaelrsweet.github.io/mxml
 */

/*
 * Include necessary headers...
 */

#include "config.h"
#include "mxml.h"
#include "mmd.h"
#include <time.h>
#include <sys/stat.h>
#ifndef WIN32
#  include <dirent.h>
#  include <unistd.h>
#endif /* !WIN32 */
#ifdef __APPLE__
#  include <spawn.h>
#  include <sys/wait.h>
extern char **environ;
#endif /* __APPLE__ */

#ifdef HAVE_ZLIB_H
#  include "zipc.h"
#endif /* HAVE_ZLIB_H */


/*
 * This program scans source and header files and produces public API
 * documentation for code that conforms to the CUPS Configuration
 * Management Plan (CMP) coding standards.  Please see the following web
 * page for details:
 *
 *     https://www.cups.org/doc/spec-cmp.html
 *
 * Using Mini-XML, this program creates and maintains an XML representation
 * of the public API code documentation which can then be converted to HTML,
 * man pages, or EPUB as desired.  The following is a poor-man's schema:
 *
 * <?xml version="1.0"?>
 * <mxmldoc xmlns="http://www.easysw.com"
 *  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 *  xsi:schemaLocation="http://www.minixml.org/mxmldoc.xsd">
 *
 *   <namespace name="">                        [optional...]
 *     <constant name="">
 *       <description>descriptive text</description>
 *     </constant>
 *
 *     <enumeration name="">
 *       <description>descriptive text</description>
 *       <constant name="">...</constant>
 *     </enumeration>
 *
 *     <typedef name="">
 *       <description>descriptive text</description>
 *       <type>type string</type>
 *     </typedef>
 *
 *     <function name="" scope="">
 *       <description>descriptive text</description>
 *       <argument name="" direction="I|O|IO" default="">
 *         <description>descriptive text</description>
 *         <type>type string</type>
 *       </argument>
 *       <returnvalue>
 *         <description>descriptive text</description>
 *         <type>type string</type>
 *       </returnvalue>
 *       <seealso>function names separated by spaces</seealso>
 *     </function>
 *
 *     <variable name="" scope="">
 *       <description>descriptive text</description>
 *       <type>type string</type>
 *     </variable>
 *
 *     <struct name="">
 *       <description>descriptive text</description>
 *       <variable name="">...</variable>
 *       <function name="">...</function>
 *     </struct>
 *
 *     <union name="">
 *       <description>descriptive text</description>
 *       <variable name="">...</variable>
 *     </union>
 *
 *     <class name="" parent="">
 *       <description>descriptive text</description>
 *       <class name="">...</class>
 *       <enumeration name="">...</enumeration>
 *       <function name="">...</function>
 *       <struct name="">...</struct>
 *       <variable name="">...</variable>
 *     </class>
 *   </namespace>
 * </mxmldoc>
 */


/*
 * Basic states for file parser...
 */

#define STATE_NONE		0	/* No state - whitespace, etc. */
#define STATE_PREPROCESSOR	1	/* Preprocessor directive */
#define STATE_C_COMMENT		2	/* Inside a C comment */
#define STATE_CXX_COMMENT	3	/* Inside a C++ comment */
#define STATE_STRING		4	/* Inside a string constant */
#define STATE_CHARACTER		5	/* Inside a character constant */
#define STATE_IDENTIFIER	6	/* Inside a keyword/identifier */


/*
 * Output modes...
 */

#define OUTPUT_NONE		0	/* No output */
#define OUTPUT_HTML		1	/* Output HTML */
#define OUTPUT_XML		2	/* Output XML */
#define OUTPUT_MAN		3	/* Output nroff/man */
#define OUTPUT_TOKENS		4	/* Output docset Tokens.xml file */
#define OUTPUT_EPUB		5	/* Output EPUB (XHTML) */
#define OUTPUT_DOCSET		6	/* Output Xcode documentation set (HTML) */


/*
 * Local types...
 */

typedef struct
{
  char	level,				/* Table of contents level (0-N) */
	anchor[64],			/* Anchor in file */
	title[447];			/* Title of section */
} toc_entry_t;

typedef struct
{
  size_t	alloc_entries,		/* Allocated entries */
                num_entries;		/* Number of entries */
  toc_entry_t	*entries;		/* Entries */
} toc_t;


/*
 * Local functions...
 */

static void		add_toc(toc_t *toc, int level, const char *anchor, const char *title);
static mxml_node_t	*add_variable(mxml_node_t *parent, const char *name, mxml_node_t *type);
static toc_t		*build_toc(mxml_node_t *doc, const char *bodyfile, mmd_t *body, int mode);
static mxml_node_t	*find_public(mxml_node_t *node, mxml_node_t *top, const char *element, const char *name, int mode);
static void		free_toc(toc_t *toc);
static char		*get_comment_info(mxml_node_t *description);
static char		*get_iso_date(time_t t);
static char		*get_text(mxml_node_t *node, char *buffer, int buflen);
static int		is_markdown(const char *filename);
static mxml_type_t	load_cb(mxml_node_t *node);
static const char	*markdown_anchor(const char *text);
static void		markdown_write_block(FILE *out, mmd_t *parent, int mode);
static void		markdown_write_leaf(FILE *out, mmd_t *node, int mode);
static mxml_node_t	*new_documentation(mxml_node_t **mxmldoc);
#ifdef __APPLE__
static int		remove_directory(const char *path);
#endif /* __APPLE__ */
static void		safe_strcpy(char *dst, const char *src);
static int		scan_file(const char *filename, FILE *fp, mxml_node_t *doc);
static void		sort_node(mxml_node_t *tree, mxml_node_t *func);
static void		update_comment(mxml_node_t *parent, mxml_node_t *comment);
static void		usage(const char *option);
static void		write_description(FILE *out, int mode, mxml_node_t *description, const char *element, int summary);
#ifdef __APPLE__
static void		write_docset(const char *docset, const char *section, const char *title, const char *author, const char *copyright, const char *docversion, const char *feedname, const char *feedurl, const char *cssfile, const char *headerfile, const char *bodyfile, mmd_t *body, mxml_node_t *doc, const char *footerfile);
#endif /* __APPLE__ */
static void		write_element(FILE *out, mxml_node_t *doc, mxml_node_t *element, int mode);
#ifdef HAVE_ZLIB_H
static void		write_epub(const char *epubfile, const char *section, const char *title, const char *author, const char *copyright, const char *docversion, const char *cssfile, const char *coverimage, const char *headerfile, const char *bodyfile, mmd_t *body, mxml_node_t *doc, const char *footerfile);
#endif /* HAVE_ZLIB_H */
static void		write_file(FILE *out, const char *file, int mode);
static void		write_function(FILE *out, int mode, mxml_node_t *doc, mxml_node_t *function, int level);
static void		write_html(const char *framefile, const char *section, const char *title, const char *author, const char *copyright, const char *docversion, const char *cssfile, const char *coverimage, const char *headerfile, const char *bodyfile, mmd_t *body, mxml_node_t *doc, const char *footerfile);
static void		write_html_body(FILE *out, int mode, const char *bodyfile, mmd_t *body, mxml_node_t *doc);
static void		write_html_head(FILE *out, int mode, const char *section, const char *title, const char *author, const char *copyright, const char *docversion, const char *cssfile);
static void		write_html_toc(FILE *out, const char *title, toc_t *toc, const char  *filename, const char  *target);
static void		write_man(const char *man_name, const char *section, const char *title, const char *author, const char *copyright, const char *headerfile, const char *bodyfile, mmd_t *body, mxml_node_t *doc, const char *footerfile);
static void		write_scu(FILE *out, int mode, mxml_node_t *doc, mxml_node_t *scut);
static void		write_string(FILE *out, const char *s, int mode);
static void		write_tokens(FILE *out, mxml_node_t *doc, const char *path);
static const char	*ws_cb(mxml_node_t *node, int where);


/*
 * 'main()' - Main entry for test program.
 */

int					/* O - Exit status */
main(int  argc,				/* I - Number of command-line args */
     char *argv[])			/* I - Command-line args */
{
  int		i;			/* Looping var */
  int		len;			/* Length of argument */
  FILE		*fp;			/* File to read */
  mxml_node_t	*doc = NULL;		/* XML documentation tree */
  mxml_node_t	*mxmldoc = NULL;	/* mxmldoc node */
  const char	*author = NULL,		/* Author */
              	*copyright = NULL,	/* Copyright */
		*cssfile = NULL,	/* CSS stylesheet file */
		*docset = NULL,		/* Documentation set directory */
		*docversion = NULL,	/* Documentation set version */
                *epubfile = NULL,	/* EPUB filename */
		*feedname = NULL,	/* Feed name for documentation set */
		*feedurl = NULL,	/* Feed URL for documentation set */
		*footerfile = NULL,	/* Footer file */
		*framefile = NULL,	/* Framed HTML basename */
		*headerfile = NULL,	/* Header file */
		*bodyfile = NULL,	/* Body file */
                *coverimage = NULL,	/* Cover image file */
		*name = NULL,		/* Name of manpage */
		*path = NULL,		/* Path to help file for tokens */
		*section = NULL,	/* Section/keywords of documentation */
		*title = NULL,		/* Title of documentation */
		*xmlfile = NULL;	/* XML file */
  mmd_t		*body;			/* Body markdown file, if any */
  int		mode = OUTPUT_HTML,	/* Output mode */
		update = 0;		/* Updated XML file */


 /*
  * Check arguments...
  */

  for (i = 1; i < argc; i ++)
    if (!strcmp(argv[i], "--help"))
    {
     /*
      * Show help...
      */

      usage(NULL);
    }
    else if (!strcmp(argv[i], "--version"))
    {
     /*
      * Show version...
      */

      puts(MXML_VERSION + 10);
      return (0);
    }
    else if (!strcmp(argv[i], "--author") && !author)
    {
     /*
      * Set author...
      */

      i ++;
      if (i < argc)
        author = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--copyright") && !copyright)
    {
     /*
      * Set copyright...
      */

      i ++;
      if (i < argc)
        copyright = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--coverimage") && !coverimage)
    {
     /*
      * Set cover image file...
      */

      i ++;
      if (i < argc)
        coverimage = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--css") && !cssfile)
    {
     /*
      * Set CSS stylesheet file...
      */

      i ++;
      if (i < argc)
        cssfile = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--docset") && !docset)
    {
     /*
      * Set documentation set directory...
      */

      mode = OUTPUT_DOCSET;

      i ++;
      if (i < argc)
        docset = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--docversion") && !docversion)
    {
     /*
      * Set documentation set directory...
      */

      i ++;
      if (i < argc)
        docversion = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--epub") && !epubfile)
    {
     /*
      * Set EPUB filename...
      */

      mode = OUTPUT_EPUB;

      i ++;
      if (i < argc)
        epubfile = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--footer") && !footerfile)
    {
     /*
      * Set footer file...
      */

      i ++;
      if (i < argc)
        footerfile = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--feedname") && !feedname)
    {
     /*
      * Set documentation set feed name...
      */

      i ++;
      if (i < argc)
        feedname = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--feedurl") && !feedurl)
    {
     /*
      * Set documentation set feed name...
      */

      i ++;
      if (i < argc)
        feedurl = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--framed") && !framefile)
    {
     /*
      * Set base filename for framed HTML output...
      */

      i ++;
      if (i < argc)
        framefile = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--header") && !headerfile)
    {
     /*
      * Set header file...
      */

      i ++;
      if (i < argc)
        headerfile = argv[i];
      else
        usage(NULL);
    }
    else if ((!strcmp(argv[i], "--body") || !strcmp(argv[i], "--intro")) && !bodyfile)
    {
     /*
      * Set body file...
      */

      i ++;
      if (i < argc)
        bodyfile = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--man") && !name)
    {
     /*
      * Output manpage...
      */

      i ++;
      if (i < argc)
      {
        mode = OUTPUT_MAN;
        name = argv[i];
      }
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--no-output"))
      mode = OUTPUT_NONE;
    else if (!strcmp(argv[i], "--section") && !section)
    {
     /*
      * Set section/keywords...
      */

      i ++;
      if (i < argc)
        section = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--title") && !title)
    {
     /*
      * Set title...
      */

      i ++;
      if (i < argc)
        title = argv[i];
      else
        usage(NULL);
    }
    else if (!strcmp(argv[i], "--tokens"))
    {
     /*
      * Output Tokens.xml file...
      */

      mode = OUTPUT_TOKENS;

      i ++;
      if (i < argc)
        path = argv[i];
      else
        usage(NULL);
    }
    else if (argv[i][0] == '-')
    {
     /*
      * Unknown/bad option...
      */

      usage(argv[i]);
    }
    else
    {
     /*
      * Process XML or source file...
      */

      len = (int)strlen(argv[i]);
      if (len > 4 && !strcmp(argv[i] + len - 4, ".xml"))
      {
       /*
        * Set XML file...
	*/

        if (xmlfile)
	  usage(NULL);

        xmlfile = argv[i];

        if (!doc)
	{
	  if ((fp = fopen(argv[i], "r")) != NULL)
	  {
	   /*
	    * Read the existing XML file...
	    */

	    doc = mxmlLoadFile(NULL, fp, load_cb);

	    fclose(fp);

	    if (!doc)
	    {
	      mxmldoc = NULL;

	      fprintf(stderr,
	              "mxmldoc: Unable to read the XML documentation file "
		      "\"%s\"!\n", argv[i]);
	    }
	    else if ((mxmldoc = mxmlFindElement(doc, doc, "mxmldoc", NULL,
                                        	NULL, MXML_DESCEND)) == NULL)
	    {
	      fprintf(stderr,
	              "mxmldoc: XML documentation file \"%s\" is missing "
		      "<mxmldoc> node!!\n", argv[i]);

	      mxmlDelete(doc);
	      doc = NULL;
	    }
	  }
	  else
	  {
	    doc     = NULL;
	    mxmldoc = NULL;
	  }

	  if (!doc)
	    doc = new_documentation(&mxmldoc);
        }
      }
      else
      {
       /*
        * Load source file...
	*/

        update = 1;

	if (!doc)
	  doc = new_documentation(&mxmldoc);

	if ((fp = fopen(argv[i], "r")) == NULL)
	{
	  fprintf(stderr, "mxmldoc: Unable to open source file \"%s\": %s\n",
	          argv[i], strerror(errno));
	  mxmlDelete(doc);
	  return (1);
	}
	else if (scan_file(argv[i], fp, mxmldoc))
	{
	  fclose(fp);
	  mxmlDelete(doc);
	  return (1);
	}
	else
	  fclose(fp);
      }
    }

  if (update && xmlfile)
  {
   /*
    * Save the updated XML documentation file...
    */

    if ((fp = fopen(xmlfile, "w")) != NULL)
    {
     /*
      * Write over the existing XML file...
      */

      mxmlSetWrapMargin(0);

      if (mxmlSaveFile(doc, fp, ws_cb))
      {
	fprintf(stderr,
	        "mxmldoc: Unable to write the XML documentation file \"%s\": "
		"%s!\n", xmlfile, strerror(errno));
	fclose(fp);
	mxmlDelete(doc);
	return (1);
      }

      fclose(fp);
    }
    else
    {
      fprintf(stderr,
              "mxmldoc: Unable to create the XML documentation file \"%s\": "
	      "%s!\n", xmlfile, strerror(errno));
      mxmlDelete(doc);
      return (1);
    }
  }

 /*
  * Load the body file and collect the default metadata values, if present.
  */

  if (is_markdown(bodyfile))
    body = mmdLoad(bodyfile);
  else
    body = NULL;

  if (!title)
    title = mmdGetMetadata(body, "title");
  if (!title)
    title = "Documentation";

  if (!author)
    author = mmdGetMetadata(body, "author");
  if (!author)
    author = "Unknown";

  if (!copyright)
    copyright = mmdGetMetadata(body, "copyright");
  if (!copyright)
    copyright = "Unknown";

  if (!docversion)
    docversion = mmdGetMetadata(body, "version");
  if (!docversion)
    docversion = "0.0";

 /*
  * Write output...
  */

  switch (mode)
  {
    case OUTPUT_DOCSET :
       /*
        * Write Xcode documentation set...
        */

#ifdef __APPLE__
        write_docset(docset, section, title, author, copyright, docversion, feedname, feedurl, cssfile, headerfile, bodyfile, body, mxmldoc, footerfile);
#else
        fputs("mxmldoc: Sorry, Xcode documentation sets can only be created on macOS.\n", stderr);
#endif /* __APPLE__ */
        break;

    case OUTPUT_EPUB :
       /*
        * Write EPUB (XHTML) documentation...
        */

#ifdef HAVE_ZLIB_H
        write_epub(epubfile, section, title, author, copyright, docversion, cssfile, coverimage, headerfile, bodyfile, body, mxmldoc, footerfile);
#else
        fputs("mxmldoc: Sorry, not compiled with EPUB support.\n", stderr);
#endif /* HAVE_ZLIB_H */
        break;

    case OUTPUT_HTML :
       /*
        * Write HTML documentation...
        */

        write_html(framefile, section, title, author, copyright, docversion, cssfile, coverimage, headerfile, bodyfile, body, mxmldoc, footerfile);
        break;

    case OUTPUT_MAN :
       /*
        * Write manpage documentation...
        */

        write_man(name, section, title, author, copyright, headerfile, bodyfile, body, mxmldoc, footerfile);
        break;

    case OUTPUT_TOKENS :
	fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
	      "<Tokens version=\"1.0\">\n", stdout);

	write_tokens(stdout, mxmldoc, path);

	fputs("</Tokens>\n", stdout);
        break;
  }

  if (body)
    mmdFree(body);

 /*
  * Delete the tree and return...
  */

  mxmlDelete(doc);

  return (0);
}


/*
 * 'add_toc()' - Add a TOC entry.
 */

static void
add_toc(toc_t      *toc,		/* I - Table-of-contents */
        int        level,		/* I - Level (1-N) */
        const char *anchor,		/* I - Anchor */
        const char *title)		/* I - Title */
{
  toc_entry_t	*temp;			/* New pointer */


  if (toc->num_entries >= toc->alloc_entries)
  {
    toc->alloc_entries += 100;
    if (!toc->entries)
      temp = malloc(sizeof(toc_entry_t) * toc->alloc_entries);
    else
      temp = realloc(toc->entries, sizeof(toc_entry_t) * toc->alloc_entries);

    if (!temp)
      return;

    toc->entries = temp;
  }

  temp = toc->entries + toc->num_entries;
  toc->num_entries ++;

  temp->level = level;
  strlcpy(temp->anchor, anchor, sizeof(temp->anchor));
  strlcpy(temp->title, title, sizeof(temp->title));
}


/*
 * 'add_variable()' - Add a variable or argument.
 */

static mxml_node_t *			/* O - New variable/argument */
add_variable(mxml_node_t *parent,	/* I - Parent node */
             const char  *name,		/* I - "argument" or "variable" */
             mxml_node_t *type)		/* I - Type nodes */
{
  mxml_node_t	*variable,		/* New variable */
		*node,			/* Current node */
		*next;			/* Next node */
  char		buffer[16384],		/* String buffer */
		*bufptr;		/* Pointer into buffer */


#ifdef DEBUG
  fprintf(stderr, "add_variable(parent=%p, name=\"%s\", type=%p)\n",
          parent, name, type);
#endif /* DEBUG */

 /*
  * Range check input...
  */

  if (!type || !type->child)
    return (NULL);

 /*
  * Create the variable/argument node...
  */

  variable = mxmlNewElement(parent, name);

 /*
  * Check for a default value...
  */

  for (node = type->child; node; node = node->next)
    if (!strcmp(node->value.text.string, "="))
      break;

  if (node)
  {
   /*
    * Default value found, copy it and add as a "default" attribute...
    */

    for (bufptr = buffer; node; bufptr += strlen(bufptr))
    {
      if (node->value.text.whitespace && bufptr > buffer)
	*bufptr++ = ' ';

      strlcpy(bufptr, node->value.text.string, sizeof(buffer) - (size_t)(bufptr - buffer));

      next = node->next;
      mxmlDelete(node);
      node = next;
    }

    mxmlElementSetAttr(variable, "default", buffer);
  }

 /*
  * Extract the argument/variable name...
  */

  if (type->last_child->value.text.string[0] == ')')
  {
   /*
    * Handle "type (*name)(args)"...
    */

    for (node = type->child; node; node = node->next)
      if (node->value.text.string[0] == '(')
	break;

    for (bufptr = buffer; node; bufptr += strlen(bufptr))
    {
      if (node->value.text.whitespace && bufptr > buffer)
	*bufptr++ = ' ';

      strlcpy(bufptr, node->value.text.string, sizeof(buffer) - (size_t)(bufptr - buffer));

      next = node->next;
      mxmlDelete(node);
      node = next;
    }
  }
  else
  {
   /*
    * Handle "type name"...
    */

    strlcpy(buffer, type->last_child->value.text.string, sizeof(buffer));
    mxmlDelete(type->last_child);
  }

 /*
  * Set the name...
  */

  mxmlElementSetAttr(variable, "name", buffer);

 /*
  * Add the remaining type information to the variable node...
  */

  mxmlAdd(variable, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type);

 /*
  * Add new new variable node...
  */

  return (variable);
}


/*
 * 'build_toc()' - Build a table-of-contents...
 */

static toc_t *				/* O - Table of contents */
build_toc(mxml_node_t *doc,		/* I - Documentation */
          const char  *bodyfile,	/* I - Body file */
          mmd_t       *body,		/* I - Markdown body */
          int         mode)             /* I - Output mode */
{
  toc_t		*toc;			/* Array of headings */
  FILE		*fp;			/* Body file */
  mxml_node_t	*function,		/* Current function */
		*scut,			/* Struct/class/union/typedef */
		*arg;			/* Current argument */
  const char	*name;			/* Name of function/type */


 /*
  * Make a new table-of-contents...
  */

  if ((toc = calloc(1, sizeof(toc_t))) == NULL)
    return (NULL);

 /*
  * Scan the body file for headings...
  */

  if (body)
  {
    mmd_t	*node,			/* Current node */
		*tnode,			/* Title node */
		*next;			/* Next node */
    mmd_type_t	type;			/* Node type */
    char	title[1024],		/* Heading title */
		*ptr;			/* Pointer into title */

    for (node = mmdGetFirstChild(body); node; node = next)
    {
      type = mmdGetType(node);

      if (type == MMD_TYPE_HEADING_1 || type == MMD_TYPE_HEADING_2)
      {
        title[sizeof(title) - 1] = '\0';

        for (tnode = mmdGetFirstChild(node), ptr = title; tnode; tnode = mmdGetNextSibling(tnode))
        {
          if (mmdGetWhitespace(tnode) && ptr < (title + sizeof(title) - 1))
            *ptr++ = ' ';

          strncpy(ptr, mmdGetText(tnode), sizeof(title) - (ptr - title) - 1);
          ptr += strlen(ptr);
        }

        add_toc(toc, type - MMD_TYPE_HEADING_1 + 1, markdown_anchor(title), title);
      }

      if ((next = mmdGetNextSibling(node)) == NULL)
      {
        next = mmdGetParent(node);

        while (next && mmdGetNextSibling(next) == NULL)
          next = mmdGetParent(next);

        next = mmdGetNextSibling(next);
      }
    }
  }
  else if (bodyfile && (fp = fopen(bodyfile, "r")) != NULL)
  {
    char	line[8192],		/* Line from file */
		*ptr,			/* Pointer in line */
		*end,			/* End of line */
		*anchor,		/* Anchor name */
                *title,			/* Title */
		quote;			/* Quote character for value */
    int		level;			/* New heading level */


    while (fgets(line, sizeof(line), fp))
    {
     /*
      * See if this line has a heading...
      */

      if ((ptr = strstr(line, "<h")) == NULL &&
          (ptr = strstr(line, "<H")) == NULL)
	continue;

      if (ptr[2] != '2' && ptr[2] != '3')
        continue;

      level = ptr[2] - '1';

     /*
      * Make sure we have the whole heading...
      */

      while (!strstr(line, "</h") && !strstr(line, "</H"))
      {
        end = line + strlen(line);

	if (end == (line + sizeof(line) - 1) ||
	    !fgets(end, (int)(sizeof(line) - (end - line)), fp))
	  break;
      }

     /*
      * Convert newlines and tabs to spaces...
      */

      for (ptr = line; *ptr; ptr ++)
        if (isspace(*ptr & 255))
	  *ptr = ' ';

     /*
      * Find the anchor and text...
      */

      for (ptr = strchr(line, '<'); ptr; ptr = strchr(ptr + 1, '<'))
      {
        if (!strncmp(ptr, "<A NAME=", 8) || !strncmp(ptr, "<a name=", 8))
        {
          ptr += 8;
	  break;
        }
        else if (!strncmp(ptr, "<A ID=", 6) || !strncmp(ptr, "<a id=", 6))
        {
          ptr += 6;
	  break;
        }
      }

      if (!ptr)
        continue;

      if (*ptr == '\'' || *ptr == '\"')
      {
       /*
        * Quoted anchor...
	*/

        quote  = *ptr++;
	anchor = ptr;

	while (*ptr && *ptr != quote)
	  ptr ++;

        if (!*ptr)
	  continue;

        while (*ptr && *ptr != '>')
          *ptr++ = '\0';

        if (*ptr)
          *ptr++ = '\0';
      }
      else
      {
       /*
        * Non-quoted anchor...
	*/

        anchor = ptr;

	while (*ptr && *ptr != '>' && !isspace(*ptr & 255))
	  ptr ++;

        if (!*ptr)
	  continue;

        while (*ptr && *ptr != '>')
          *ptr++ = '\0';

        if (*ptr)
          *ptr++ = '\0';
      }

      title = ptr;
      if ((ptr = strstr(title, "</A>")) != NULL)
        *ptr = '\0';
      else if ((ptr = strstr(title, "</a>")) != NULL)
        *ptr = '\0';

      add_toc(toc, level, anchor, title);
    }

    fclose(fp);
  }

 /*
  * Next the classes...
  */

  if ((scut = find_public(doc, doc, "class", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "CLASSES", "Classes");

    while (scut)
    {
      name = mxmlElementGetAttr(scut, "name");
      scut = find_public(scut, doc, "class", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Functions...
  */

  if ((function = find_public(doc, doc, "function", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "FUNCTIONS", "Functions");

    while (function)
    {
      name     = mxmlElementGetAttr(function, "name");
      function = find_public(function, doc, "function", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Data types...
  */

  if ((scut = find_public(doc, doc, "typedef", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "TYPES", "Data Types");

    while (scut)
    {
      name = mxmlElementGetAttr(scut, "name");
      scut = find_public(scut, doc, "typedef", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Structures...
  */

  if ((scut = find_public(doc, doc, "struct", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "STRUCTURES", "Structures");

    while (scut)
    {
      name = mxmlElementGetAttr(scut, "name");
      scut = find_public(scut, doc, "struct", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Unions...
  */

  if ((scut = find_public(doc, doc, "union", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "UNIONS", "Unions");

    while (scut)
    {
      name = mxmlElementGetAttr(scut, "name");
      scut = find_public(scut, doc, "union", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Globals variables...
  */

  if ((arg = find_public(doc, doc, "variable", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "VARIABLES", "Variables");

    while (arg)
    {
      name = mxmlElementGetAttr(arg, "name");
      arg = find_public(arg, doc, "variable", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

 /*
  * Enumerations/constants...
  */

  if ((scut = find_public(doc, doc, "enumeration", NULL, mode)) != NULL)
  {
    add_toc(toc, 1, "ENUMERATIONS", "Enumerations");

    while (scut)
    {
      name = mxmlElementGetAttr(scut, "name");
      scut = find_public(scut, doc, "enumeration", NULL, mode);
      add_toc(toc, 2, name, name);
    }
  }

  return (toc);
}


/*
 * 'epub_ws_cb()' - Whitespace callback for EPUB.
 */

static const char *			/* O - Whitespace string or NULL for none */
epub_ws_cb(mxml_node_t *node,		/* I - Element node */
           int         where)		/* I - Where value */
{
  int	depth;				/* Depth of node */
  static const char *spaces = "                                        ";
					/* Whitespace (40 spaces) for indent */


  switch (where)
  {
    case MXML_WS_BEFORE_CLOSE :
        if (node->child && node->child->type != MXML_ELEMENT)
          return (NULL);

	for (depth = -4; node; node = node->parent, depth += 2);
	if (depth > 40)
	  return (spaces);
	else if (depth < 2)
	  return (NULL);
	else
	  return (spaces + 40 - depth);

    case MXML_WS_AFTER_CLOSE :
	return ("\n");

    case MXML_WS_BEFORE_OPEN :
	for (depth = -4; node; node = node->parent, depth += 2);
	if (depth > 40)
	  return (spaces);
	else if (depth < 2)
	  return (NULL);
	else
	  return (spaces + 40 - depth);

    default :
    case MXML_WS_AFTER_OPEN :
        if (node->child && node->child->type != MXML_ELEMENT)
          return (NULL);

        return ("\n");
  }
}


/*
 * 'find_public()' - Find a public function, type, etc.
 */

static mxml_node_t *			/* I - Found node or NULL */
find_public(mxml_node_t *node,		/* I - Current node */
            mxml_node_t *top,		/* I - Top node */
            const char  *element,	/* I - Element */
            const char  *name,		/* I - Name */
            int         mode)           /* I - Output mode */
{
  mxml_node_t	*description,		/* Description node */
		*comment;		/* Comment node */


  for (node = mxmlFindElement(node, top, element, name ? "name" : NULL, name, node == top ? MXML_DESCEND_FIRST : MXML_NO_DESCEND);
       node;
       node = mxmlFindElement(node, top, element, name ? "name" : NULL, name, MXML_NO_DESCEND))
  {
   /*
    * Get the description for this node...
    */

    description = mxmlFindElement(node, node, "description", NULL, NULL,
                                  MXML_DESCEND_FIRST);

   /*
    * A missing or empty description signals a private node...
    */

    if (!description)
      continue;

   /*
    * Look for @private@ or @exclude format@ in the comment text...
    */

    for (comment = description->child; comment; comment = comment->next)
    {
      const char *s = comment->type == MXML_TEXT ? comment->value.text.string : comment->value.opaque;
      const char *exclude;

     /*
      * Skip anything marked private...
      */

      if (strstr(s, "@private@"))
        break;

     /*
      * Skip items excluded for certain formats...
      */

      if ((exclude = strstr(s, "@exclude ")) != NULL)
      {
        exclude += 9;

        if (!strncmp(exclude, "all@", 4))
        {
          break;
        }
        else
        {
          while (*exclude != '@')
          {
            if (!strncmp(exclude, "docset", 6))
            {
              if (mode == OUTPUT_DOCSET)
                break;
              exclude += 6;
            }
            else if (!strncmp(exclude, "epub", 4))
            {
              if (mode == OUTPUT_EPUB)
                break;
              exclude += 4;
            }
            else if (!strncmp(exclude, "html", 4))
            {
              if (mode == OUTPUT_HTML)
                break;
              exclude += 4;
            }
            else if (!strncmp(exclude, "man", 3))
            {
              if (mode == OUTPUT_MAN)
                break;
              exclude += 3;
            }
            else if (!strncmp(exclude, "tokens", 6))
            {
              if (mode == OUTPUT_TOKENS)
                break;
              exclude += 6;
            }
            else if (!strncmp(exclude, "xml", 3))
            {
              if (mode == OUTPUT_XML)
                break;
              exclude += 3;
            }
            else
              break;

            if (*exclude == ',')
              exclude ++;
            else if (*exclude != '@')
              break;
          }

          if (*exclude != '@')
            break;
        }
      }
    }

    if (!comment)
    {
     /*
      * No @private@, so return this node...
      */

      return (node);
    }
  }

 /*
  * If we get here, there are no (more) public nodes...
  */

  return (NULL);
}


/*
 * 'free_toc()' - Free a table-of-contents.
 */

static void
free_toc(toc_t *toc)			/* I - Table of contents */
{
  free(toc->entries);
  free(toc);
}


/*
 * 'get_comment_info()' - Get info from comment.
 */

static char *				/* O - Info from comment */
get_comment_info(
    mxml_node_t *description)		/* I - Description node */
{
  char		text[10240],		/* Description text */
		since[255],		/* @since value */
		*ptr;			/* Pointer into text */
  static char	info[1024];		/* Info string */


  if (!description)
    return ("");

  get_text(description, text, sizeof(text));

  for (ptr = strchr(text, '@'); ptr; ptr = strchr(ptr + 1, '@'))
  {
    if (!strncmp(ptr, "@deprecated@", 12))
      return ("<span class=\"info\">&#160;DEPRECATED&#160;</span>");
    else if (!strncmp(ptr, "@since ", 7))
    {
      strlcpy(since, ptr + 7, sizeof(since));

      if ((ptr = strchr(since, '@')) != NULL)
        *ptr = '\0';

      snprintf(info, sizeof(info), "<span class=\"info\">&#160;%s&#160;</span>", since);
      return (info);
    }
  }

  return ("");
}


/*
 * 'get_iso_date()' - Get an ISO-formatted date/time string.
 */

static char *				/* O - ISO date/time string */
get_iso_date(time_t t)			/* I - Time value */
{
  struct tm	*date;			/* UTC date/time */
  static char	buffer[100];		/* String buffer */


  date = gmtime(&t);

  snprintf(buffer, sizeof(buffer), "%04d-%02d-%02dT%02d:%02d:%02dZ", date->tm_year + 1900, date->tm_mon + 1, date->tm_mday, date->tm_hour, date->tm_min, date->tm_sec);
  return (buffer);
}


/*
 * 'get_text()' - Get the text for a node.
 */

static char *				/* O - Text in node */
get_text(mxml_node_t *node,		/* I - Node to get */
         char        *buffer,		/* I - Buffer */
	 int         buflen)		/* I - Size of buffer */
{
  char		*ptr,			/* Pointer into buffer */
		*end;			/* End of buffer */
  int		len;			/* Length of node */
  mxml_node_t	*current;		/* Current node */


  ptr = buffer;
  end = buffer + buflen - 1;

  for (current = node->child; current && ptr < end; current = current->next)
  {
    if (current->type == MXML_TEXT)
    {
      if (current->value.text.whitespace)
        *ptr++ = ' ';

      len = (int)strlen(current->value.text.string);
      if (len > (int)(end - ptr))
        len = (int)(end - ptr);

      memcpy(ptr, current->value.text.string, len);
      ptr += len;
    }
    else if (current->type == MXML_OPAQUE)
    {
      len = (int)strlen(current->value.opaque);
      if (len > (int)(end - ptr))
        len = (int)(end - ptr);

      memcpy(ptr, current->value.opaque, len);
      ptr += len;
    }
  }

  *ptr = '\0';

  return (buffer);
}


/*
 * 'is_markdown()' - Determine whether a file is markdown text.
 */

static int				/* O - 1 if markdown, 0 otherwise */
is_markdown(const char *filename)	/* I - File to check */
{
  const char	*ext = filename ? strstr(filename, ".md") : NULL;
					/* Pointer to extension */

  return (ext && !ext[3]);
}


/*
 * 'load_cb()' - Set the type of child nodes.
 */

static mxml_type_t			/* O - Node type */
load_cb(mxml_node_t *node)		/* I - Node */
{
  if (!strcmp(node->value.element.name, "description"))
    return (MXML_OPAQUE);
  else
    return (MXML_TEXT);
}


/*
 * 'markdown_anchor()' - Return the HTML anchor for a given title.
 */

static const char *			/* O - HTML anchor */
markdown_anchor(const char *text)	/* I - Title text */
{
  char          *bufptr;                /* Pointer into buffer */
  static char   buffer[1024];           /* Buffer for anchor string */


  for (bufptr = buffer; *text && bufptr < (buffer + sizeof(buffer) - 1); text ++)
  {
    if ((*text >= '0' && *text <= '9') || (*text >= 'a' && *text <= 'z') || (*text >= 'A' && *text <= 'Z') || *text == '.' || *text == '-')
      *bufptr++ = (char)tolower(*text);
    else if (*text == ' ')
      *bufptr++ = '-';
  }

  *bufptr = '\0';

  return (buffer);
}


/*
 * 'markdown_write_block()' - Write a markdown block.
 */

static void
markdown_write_block(FILE  *out,	/* I - Output file */
                     mmd_t *parent,	/* I - Parent node */
                     int   mode)	/* I - Output mode */
{
  mmd_t		*node;			/* Current child node */
  mmd_type_t	type;			/* Node type */


  type = mmdGetType(parent);

  if (mode == OUTPUT_MAN)
  {
    switch (type)
    {
      case MMD_TYPE_BLOCK_QUOTE :
          break;

      case MMD_TYPE_ORDERED_LIST :
          break;

      case MMD_TYPE_UNORDERED_LIST :
          break;

      case MMD_TYPE_LIST_ITEM :
          fputs(".IP \\(bu 5\n", out);
          break;

      case MMD_TYPE_HEADING_1 :
          fputs(".SH ", out);
          break;

      case MMD_TYPE_HEADING_2 :
          fputs(".SS ", out);
          break;

      case MMD_TYPE_HEADING_3 :
      case MMD_TYPE_HEADING_4 :
      case MMD_TYPE_HEADING_5 :
      case MMD_TYPE_HEADING_6 :
      case MMD_TYPE_PARAGRAPH :
          fputs(".PP\n", out);
          break;

      case MMD_TYPE_CODE_BLOCK :
          fputs(".nf\n\n", out);
          for (node = mmdGetFirstChild(parent); node; node = mmdGetNextSibling(node))
          {
            fputs("    ", out);
            write_string(out, mmdGetText(node), mode);
          }
          fputs(".fi\n", out);
          return;

      case MMD_TYPE_METADATA :
          return;

      default :
          break;
    }

    for (node = mmdGetFirstChild(parent); node; node = mmdGetNextSibling(node))
    {
      if (mmdIsBlock(node))
        markdown_write_block(out, node, mode);
      else
        markdown_write_leaf(out, node, mode);
    }

    fputs("\n", out);
  }
  else
  {
    const char	*element;		/* Enclosing element, if any */

    switch (type)
    {
      case MMD_TYPE_BLOCK_QUOTE :
          element = "blockquote";
          break;

      case MMD_TYPE_ORDERED_LIST :
          element = "ol";
          break;

      case MMD_TYPE_UNORDERED_LIST :
          element = "ul";
          break;

      case MMD_TYPE_LIST_ITEM :
          element = "li";
          break;

      case MMD_TYPE_HEADING_1 :
          element = "h2"; /* Offset since title is H1 for mxmldoc output */
          break;

      case MMD_TYPE_HEADING_2 :
          element = "h3"; /* Offset since title is H1 for mxmldoc output */
          break;

      case MMD_TYPE_HEADING_3 :
          element = "h4"; /* Offset since title is H1 for mxmldoc output */
          break;

      case MMD_TYPE_HEADING_4 :
          element = "h5"; /* Offset since title is H1 for mxmldoc output */
          break;

      case MMD_TYPE_HEADING_5 :
          element = "h6"; /* Offset since title is H1 for mxmldoc output */
          break;

      case MMD_TYPE_HEADING_6 :
          element = "h6";
          break;

      case MMD_TYPE_PARAGRAPH :
          element = "p";
          break;

      case MMD_TYPE_CODE_BLOCK :
          fputs("    <pre><code>", out);
          for (node = mmdGetFirstChild(parent); node; node = mmdGetNextSibling(node))
            write_string(out, mmdGetText(node), mode);
          fputs("</code></pre>\n", out);
          return;

      case MMD_TYPE_THEMATIC_BREAK :
          if (mode == OUTPUT_EPUB)
            fputs("    <hr />\n", out);
          else
            fputs("    <hr>\n", out);
          return;

      default :
          element = NULL;
          break;
    }

    if (type >= MMD_TYPE_HEADING_1 && type <= MMD_TYPE_HEADING_6)
    {
     /*
      * Add an anchor...
      */

      fprintf(out, "    <%s><a id=\"", element);
      for (node = mmdGetFirstChild(parent); node; node = mmdGetNextSibling(node))
      {
        if (mmdGetWhitespace(node))
          fputc('-', out);

        fputs(markdown_anchor(mmdGetText(node)), out);
      }
      fputs("\">", out);
    }
    else if (element)
      fprintf(out, "    <%s>%s", element, type <= MMD_TYPE_UNORDERED_LIST ? "\n" : "");

    for (node = mmdGetFirstChild(parent); node; node = mmdGetNextSibling(node))
    {
      if (mmdIsBlock(node))
        markdown_write_block(out, node, mode);
      else
        markdown_write_leaf(out, node, mode);
    }

    if (type >= MMD_TYPE_HEADING_1 && type <= MMD_TYPE_HEADING_6)
      fprintf(out, "</a></%s>\n", element);
    else if (element)
      fprintf(out, "</%s>\n", element);
  }
}


/*
 * 'markdown_write_leaf()' - Write an leaf markdown node.
 */

static void
markdown_write_leaf(FILE  *out,		/* I - Output file */
                    mmd_t *node,	/* I - Node to write */
                    int   mode)		/* I - Output mode */
{
  const char    *text,                  /* Text to write */
                *url;                   /* URL to write */


  text = mmdGetText(node);
  url  = mmdGetURL(node);

  if (mode == OUTPUT_MAN)
  {
    const char *suffix = NULL;		/* Trailing string */

    switch (mmdGetType(node))
    {
      case MMD_TYPE_EMPHASIZED_TEXT :
          if (mmdGetWhitespace(node))
            fputc('\n', out);

          fputs(".I ", out);
          suffix = "\n";
          break;

      case MMD_TYPE_STRONG_TEXT :
          if (mmdGetWhitespace(node))
            fputc('\n', out);

          fputs(".B ", out);
          suffix = "\n";
          break;

      case MMD_TYPE_HARD_BREAK :
          if (mmdGetWhitespace(node))
            fputc('\n', out);

          fputs(".PP\n", out);
          return;

      case MMD_TYPE_SOFT_BREAK :
      case MMD_TYPE_METADATA_TEXT :
          return;

      default :
          if (mmdGetWhitespace(node))
            fputc(' ', out);
          break;
    }

    write_string(out, text, mode);

    if (suffix)
      fputs(suffix, out);
  }
  else
  {
    const char	*element;		/* Encoding element, if any */

    if (mmdGetWhitespace(node))
      fputc(' ', out);

    switch (mmdGetType(node))
    {
      case MMD_TYPE_EMPHASIZED_TEXT :
          element = "em";
          break;

      case MMD_TYPE_STRONG_TEXT :
          element = "strong";
          break;

      case MMD_TYPE_STRUCK_TEXT :
          element = "del";
          break;

      case MMD_TYPE_LINKED_TEXT :
          element = NULL;
          break;

      case MMD_TYPE_CODE_TEXT :
          element = "code";
          break;

      case MMD_TYPE_IMAGE :
          fputs("<img src=\"", out);
          write_string(out, url, mode);
          fputs("\" alt=\"", out);
          write_string(out, text, mode);
          if (mode == OUTPUT_EPUB)
            fputs("\" />", out);
          else
            fputs("\">", out);
          return;

      case MMD_TYPE_HARD_BREAK :
          if (mode == OUTPUT_EPUB)
            fputs("<br />\n", out);
          else
            fputs("<br>\n", out);
          return;

      case MMD_TYPE_SOFT_BREAK :
          if (mode == OUTPUT_EPUB)
            fputs("<wbr />", out);
          else
            fputs("<wbr>", out);
          return;

      case MMD_TYPE_METADATA_TEXT :
          return;

      default :
          element = NULL;
          break;
    }

    if (url)
    {
      if (!strcmp(url, "@"))
        fprintf(out, "<a href=\"#%s\">", markdown_anchor(text));
      else
        fprintf(out, "<a href=\"%s\">", url);
    }

    if (element)
      fprintf(out, "<%s>", element);

    if (!strcmp(text, "(c)"))
      fputs("&#160;", out);
    else if (!strcmp(text, "(r)"))
      fputs("&#174;", out);
    else if (!strcmp(text, "(tm)"))
      fputs("&#8482;", out);
    else
      write_string(out, text, mode);

    if (element)
      fprintf(out, "</%s>", element);

    if (url)
      fputs("</a>", out);
  }
}


/*
 * 'new_documentation()' - Create a new documentation tree.
 */

static mxml_node_t *			/* O - New documentation */
new_documentation(mxml_node_t **mxmldoc)/* O - mxmldoc node */
{
  mxml_node_t	*doc;			/* New documentation */


 /*
  * Create an empty XML documentation file...
  */

  doc = mxmlNewXML(NULL);

  *mxmldoc = mxmlNewElement(doc, "mxmldoc");

  mxmlElementSetAttr(*mxmldoc, "xmlns", "http://www.easysw.com");
  mxmlElementSetAttr(*mxmldoc, "xmlns:xsi",
                     "http://www.w3.org/2001/XMLSchema-instance");
  mxmlElementSetAttr(*mxmldoc, "xsi:schemaLocation",
                     "http://www.minixml.org/mxmldoc.xsd");

  return (doc);
}


#ifdef __APPLE__
/*
 * 'remove_directory()' - Remove a directory.
 */

static int				/* O - 1 on success, 0 on failure */
remove_directory(const char *path)	/* I - Directory to remove */
{
  DIR		*dir;			/* Directory */
  struct dirent	*dent;			/* Current directory entry */
  char		filename[1024];		/* Current filename */
  struct stat	fileinfo;		/* File information */


  if ((dir = opendir(path)) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to open directory \"%s\": %s\n", path,
            strerror(errno));
    return (0);
  }

  while ((dent = readdir(dir)) != NULL)
  {
   /*
    * Skip "." and ".."...
    */

    if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
      continue;

   /*
    * See if we have a file or directory...
    */

    snprintf(filename, sizeof(filename), "%s/%s", path, dent->d_name);

    if (stat(filename, &fileinfo))
    {
      fprintf(stderr, "mxmldoc: Unable to stat \"%s\": %s\n", filename,
	      strerror(errno));
      closedir(dir);
      return (0);
    }

    if (S_ISDIR(fileinfo.st_mode))
    {
      if (!remove_directory(filename))
      {
        closedir(dir);
	return (0);
      }
    }
    else if (unlink(filename))
    {
      fprintf(stderr, "mxmldoc: Unable to remove \"%s\": %s\n", filename,
	      strerror(errno));
      closedir(dir);
      return (0);
    }
  }

  closedir(dir);

  if (rmdir(path))
  {
    fprintf(stderr, "mxmldoc: Unable to remove directory \"%s\": %s\n", path,
            strerror(errno));
    return (0);
  }

  return (1);
}
#endif /* __APPLE__ */


/*
 * 'safe_strcpy()' - Copy a string allowing for overlapping strings.
 */

static void
safe_strcpy(char       *dst,		/* I - Destination string */
            const char *src)		/* I - Source string */
{
  while (*src)
    *dst++ = *src++;

  *dst = '\0';
}


/*
 * 'scan_file()' - Scan a source file.
 */

static int				/* O - 0 on success, -1 on error */
scan_file(const char  *filename,	/* I - Filename */
          FILE        *fp,		/* I - File to scan */
          mxml_node_t *tree)		/* I - Function tree */
{
  int		state,			/* Current parser state */
		braces,			/* Number of braces active */
		parens;			/* Number of active parenthesis */
  int		ch;			/* Current character */
  char		buffer[65536],		/* String buffer */
		*bufptr;		/* Pointer into buffer */
  const char	*scope;			/* Current variable/function scope */
  mxml_node_t	*comment,		/* <comment> node */
		*constant,		/* <constant> node */
		*enumeration,		/* <enumeration> node */
		*function,		/* <function> node */
		*fstructclass,		/* function struct/class node */
		*structclass,		/* <struct> or <class> node */
		*typedefnode,		/* <typedef> node */
		*variable,		/* <variable> or <argument> node */
		*returnvalue,		/* <returnvalue> node */
		*type,			/* <type> node */
		*description,		/* <description> node */
		*node,			/* Current node */
		*next;			/* Next node */
#if DEBUG > 1
  mxml_node_t	*temp;			/* Temporary node */
  int		oldstate,		/* Previous state */
		oldch;			/* Old character */
  static const char *states[] =		/* State strings */
		{
		  "STATE_NONE",
		  "STATE_PREPROCESSOR",
		  "STATE_C_COMMENT",
		  "STATE_CXX_COMMENT",
		  "STATE_STRING",
		  "STATE_CHARACTER",
		  "STATE_IDENTIFIER"
		};
#endif /* DEBUG > 1 */


#ifdef DEBUG
  fprintf(stderr, "scan_file(filename=\"%s\", fp=%p, tree=%p)\n", filename,
          fp, tree);
#endif /* DEBUG */

 /*
  * Initialize the finite state machine...
  */

  state        = STATE_NONE;
  braces       = 0;
  parens       = 0;
  bufptr       = buffer;

  comment      = mxmlNewElement(MXML_NO_PARENT, "temp");
  constant     = NULL;
  enumeration  = NULL;
  function     = NULL;
  variable     = NULL;
  returnvalue  = NULL;
  type         = NULL;
  description  = NULL;
  typedefnode  = NULL;
  structclass  = NULL;
  fstructclass = NULL;

  if (!strcmp(tree->value.element.name, "class"))
    scope = "private";
  else
    scope = NULL;

 /*
  * Read until end-of-file...
  */

  while ((ch = getc(fp)) != EOF)
  {
#if DEBUG > 1
    oldstate = state;
    oldch    = ch;
#endif /* DEBUG > 1 */

    switch (state)
    {
      case STATE_NONE :			/* No state - whitespace, etc. */
          switch (ch)
	  {
	    case '/' :			/* Possible C/C++ comment */
	        ch     = getc(fp);
		bufptr = buffer;

		if (ch == '*')
		  state = STATE_C_COMMENT;
		else if (ch == '/')
		  state = STATE_CXX_COMMENT;
		else
		{
		  ungetc(ch, fp);

		  if (type)
		  {
#ifdef DEBUG
                    fputs("Identifier: <<<< / >>>\n", stderr);
#endif /* DEBUG */
                    ch = type->last_child->value.text.string[0];
		    mxmlNewText(type, isalnum(ch) || ch == '_', "/");
		  }
		}
		break;

	    case '#' :			/* Preprocessor */
#ifdef DEBUG
	        fputs("    #preprocessor...\n", stderr);
#endif /* DEBUG */
	        state = STATE_PREPROCESSOR;
	        while (comment->child)
	          mxmlDelete(comment->child);
		break;

            case '\'' :			/* Character constant */
	        state = STATE_CHARACTER;
		bufptr = buffer;
		*bufptr++ = ch;
		break;

            case '\"' :			/* String constant */
	        state = STATE_STRING;
		bufptr = buffer;
		*bufptr++ = ch;
		break;

            case '{' :
#ifdef DEBUG
	        fprintf(stderr, "    open brace, function=%p, type=%p...\n",
		        function, type);
                if (type)
                  fprintf(stderr, "    type->child=\"%s\"...\n",
		          type->child->value.text.string);
#endif /* DEBUG */

	        if (function)
		{
                  mxml_node_t *temptype = mxmlFindElement(returnvalue, returnvalue, "type", NULL, NULL, MXML_DESCEND);

#ifdef DEBUG
                    fprintf(stderr, "    returnvalue type=%p(%s)\n", temptype, temptype ? temptype->child->value.text.string : "null");
#endif /* DEBUG */

		  if (temptype && temptype->child &&
                      !strcmp(temptype->child->value.text.string, "static") &&
                      !strcmp(tree->value.element.name, "mxmldoc"))
                  {
                   /*
                    * Remove static functions...
                    */

#ifdef DEBUG
                    fputs("    DELETING STATIC FUNCTION\n", stderr);
#endif /* DEBUG */
                    mxmlDelete(function);
                  }
                  else if (fstructclass)
		  {
		    sort_node(fstructclass, function);
		    fstructclass = NULL;
		  }
		  else
		    sort_node(tree, function);

		  function    = NULL;
		  returnvalue = NULL;
		}
		else if (type && type->child &&
		         ((!strcmp(type->child->value.text.string, "typedef") &&
			   type->child->next &&
			   (!strcmp(type->child->next->value.text.string, "struct") ||
			    !strcmp(type->child->next->value.text.string, "union") ||
			    !strcmp(type->child->next->value.text.string, "class"))) ||
			  !strcmp(type->child->value.text.string, "union") ||
			  !strcmp(type->child->value.text.string, "struct") ||
			  !strcmp(type->child->value.text.string, "class")))
		{
		 /*
		  * Start of a class or structure...
		  */

		  if (!strcmp(type->child->value.text.string, "typedef"))
		  {
#ifdef DEBUG
                    fputs("    starting typedef...\n", stderr);
#endif /* DEBUG */

		    typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef");
		    mxmlDelete(type->child);
		  }
		  else
		    typedefnode = NULL;

		  structclass = mxmlNewElement(MXML_NO_PARENT,
		                               type->child->value.text.string);

#ifdef DEBUG
                  fprintf(stderr, "%c%s: <<<< %s >>>\n",
		          toupper(type->child->value.text.string[0]),
			  type->child->value.text.string + 1,
			  type->child->next ?
			      type->child->next->value.text.string : "(noname)");

                  fputs("    type =", stderr);
                  for (node = type->child; node; node = node->next)
		    fprintf(stderr, " \"%s\"", node->value.text.string);
		  putc('\n', stderr);

                  fprintf(stderr, "    scope = %s\n", scope ? scope : "(null)");
#endif /* DEBUG */

                  if (type->child->next)
		  {
		    mxmlElementSetAttr(structclass, "name",
		                       type->child->next->value.text.string);
		    sort_node(tree, structclass);
		  }

                  if (typedefnode && type->child)
		    type->child->value.text.whitespace = 0;
                  else if (structclass && type->child &&
		           type->child->next && type->child->next->next)
		  {
		    for (bufptr = buffer, node = type->child->next->next;
		         node;
			 bufptr += strlen(bufptr))
		    {
		      if (node->value.text.whitespace && bufptr > buffer)
			*bufptr++ = ' ';

		      strlcpy(bufptr, node->value.text.string, sizeof(buffer) - (size_t)(bufptr - buffer));

		      next = node->next;
		      mxmlDelete(node);
		      node = next;
		    }

		    mxmlElementSetAttr(structclass, "parent", buffer);

		    mxmlDelete(type);
		    type = NULL;
		  }
		  else
		  {
		    mxmlDelete(type);
		    type = NULL;
		  }

		  if (typedefnode && comment->last_child)
		  {
		   /*
		    * Copy comment for typedef as well as class/struct/union...
		    */

		    mxmlNewOpaque(comment, comment->last_child->value.opaque);
		    description = mxmlNewElement(typedefnode, "description");
#ifdef DEBUG
		    fprintf(stderr,
		            "    duplicating comment %p/%p for typedef...\n",
			    comment->last_child, comment->child);
#endif /* DEBUG */
		    update_comment(typedefnode, comment->last_child);
		    mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		            comment->last_child);
		  }

		  description = mxmlNewElement(structclass, "description");
#ifdef DEBUG
		  fprintf(stderr, "    adding comment %p/%p to %s...\n",
		          comment->last_child, comment->child,
			  structclass->value.element.name);
#endif /* DEBUG */
		  update_comment(structclass, comment->last_child);
		  mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		          comment->last_child);

                  if (scan_file(filename, fp, structclass))
		  {
		    mxmlDelete(comment);
		    return (-1);
		  }

#ifdef DEBUG
                  fputs("    ended typedef...\n", stderr);
#endif /* DEBUG */
                  structclass = NULL;
                  break;
                }
		else if (type && type->child && type->child->next &&
		         (!strcmp(type->child->value.text.string, "enum") ||
			  (!strcmp(type->child->value.text.string, "typedef") &&
			   !strcmp(type->child->next->value.text.string, "enum"))))
                {
		 /*
		  * Enumeration type...
		  */

		  if (!strcmp(type->child->value.text.string, "typedef"))
		  {
#ifdef DEBUG
                    fputs("    starting typedef...\n", stderr);
#endif /* DEBUG */

		    typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef");
		    mxmlDelete(type->child);
		  }
		  else
		    typedefnode = NULL;

		  enumeration = mxmlNewElement(MXML_NO_PARENT, "enumeration");

#ifdef DEBUG
                  fprintf(stderr, "Enumeration: <<<< %s >>>\n",
			  type->child->next ?
			      type->child->next->value.text.string : "(noname)");
#endif /* DEBUG */

                  if (type->child->next)
		  {
		    mxmlElementSetAttr(enumeration, "name",
		                       type->child->next->value.text.string);
		    sort_node(tree, enumeration);
		  }

                  if (typedefnode && type->child)
		    type->child->value.text.whitespace = 0;
                  else
		  {
		    mxmlDelete(type);
		    type = NULL;
		  }

		  if (typedefnode && comment->last_child)
		  {
		   /*
		    * Copy comment for typedef as well as class/struct/union...
		    */

		    mxmlNewOpaque(comment, comment->last_child->value.opaque);
		    description = mxmlNewElement(typedefnode, "description");
#ifdef DEBUG
		    fprintf(stderr,
		            "    duplicating comment %p/%p for typedef...\n",
			    comment->last_child, comment->child);
#endif /* DEBUG */
		    update_comment(typedefnode, comment->last_child);
		    mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		            comment->last_child);
		  }

		  description = mxmlNewElement(enumeration, "description");
#ifdef DEBUG
		  fprintf(stderr, "    adding comment %p/%p to enumeration...\n",
		          comment->last_child, comment->child);
#endif /* DEBUG */
		  update_comment(enumeration, comment->last_child);
		  mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		          comment->last_child);
		}
		else if (type && type->child &&
		         !strcmp(type->child->value.text.string, "extern"))
                {
                  if (scan_file(filename, fp, tree))
		  {
		    mxmlDelete(comment);
		    return (-1);
		  }
                }
		else if (type)
		{
		  mxmlDelete(type);
		  type = NULL;
		}

	        braces ++;
		function = NULL;
		variable = NULL;
		break;

            case '}' :
#ifdef DEBUG
	        fputs("    close brace...\n", stderr);
#endif /* DEBUG */

                if (structclass)
		  scope = NULL;

                if (!typedefnode)
		  enumeration = NULL;

		constant    = NULL;
		structclass = NULL;

	        if (braces > 0)
	        {
		  braces --;
		  if (braces == 0)
		  {
		    while (comment->child)
		      mxmlDelete(comment->child);
		  }
		}
		else
		{
		  mxmlDelete(comment);
		  return (0);
		}
		break;

            case '(' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< ( >>>\n", stderr);
#endif /* DEBUG */
		  mxmlNewText(type, 0, "(");
		}

	        parens ++;
		break;

            case ')' :
		if (type && parens)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< ) >>>\n", stderr);
#endif /* DEBUG */
		  mxmlNewText(type, 0, ")");
		}

                if (function && type && !parens)
		{
		 /*
		  * Check for "void" argument...
		  */

		  if (type->child && type->child->next)
		    variable = add_variable(function, "argument", type);
		  else
		    mxmlDelete(type);

		  type = NULL;
		}

	        if (parens > 0)
		  parens --;
		break;

	    case ';' :
#ifdef DEBUG
                fputs("Identifier: <<<< ; >>>\n", stderr);
		fprintf(stderr, "    enumeration=%p, function=%p, type=%p, type->child=%p, typedefnode=%p\n",
		        enumeration, function, type, type ? type->child : NULL, typedefnode);
#endif /* DEBUG */

		if (function)
		{
                  mxml_node_t *temptype = mxmlFindElement(returnvalue, returnvalue, "type", NULL, NULL, MXML_DESCEND);

#ifdef DEBUG
                    fprintf(stderr, "    returnvalue type=%p(%s)\n", temptype, temptype ? temptype->child->value.text.string : "null");
#endif /* DEBUG */

		  if (temptype && temptype->child &&
                      !strcmp(temptype->child->value.text.string, "static") &&
                      !strcmp(tree->value.element.name, "mxmldoc"))
                  {
                   /*
                    * Remove static functions...
                    */

#ifdef DEBUG
                    fputs("    DELETING STATIC FUNCTION\n", stderr);
#endif /* DEBUG */

                    mxmlDelete(function);
                  }
                  else if (!strcmp(tree->value.element.name, "class"))
		  {
#ifdef DEBUG
		    fputs("    ADDING FUNCTION TO CLASS\n", stderr);
#endif /* DEBUG */
		    sort_node(tree, function);
		  }
		  else
		    mxmlDelete(function);

		  function    = NULL;
		  variable    = NULL;
		  returnvalue = NULL;
		}

		if (type)
		{
		 /*
		  * See if we have a typedef...
		  */

		  if (type->child &&
		      !strcmp(type->child->value.text.string, "typedef"))
		  {
		   /*
		    * Yes, add it!
		    */

		    typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef");

		    for (node = type->child->next; node; node = node->next)
		      if (!strcmp(node->value.text.string, "("))
			break;

                    if (node)
		    {
		      for (node = node->next; node; node = node->next)
			if (strcmp(node->value.text.string, "*"))
			  break;
                    }

                    if (!node)
		      node = type->last_child;

#ifdef DEBUG
		    fprintf(stderr, "    ADDING TYPEDEF FOR %p(%s)...\n",
		            node, node->value.text.string);
#endif /* DEBUG */

		    mxmlElementSetAttr(typedefnode, "name",
				       node->value.text.string);
		    sort_node(tree, typedefnode);

                    if (type->child != node)
		      mxmlDelete(type->child);

		    mxmlDelete(node);

		    if (type->child)
		      type->child->value.text.whitespace = 0;

		    mxmlAdd(typedefnode, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
			    type);
		    type = NULL;
		    break;
		  }
		  else if (typedefnode && enumeration)
		  {
		   /*
		    * Add enum typedef...
		    */

                    node = type->child;

#ifdef DEBUG
		    fprintf(stderr, "    ADDING TYPEDEF FOR %p(%s)...\n",
		            node, node->value.text.string);
#endif /* DEBUG */

		    mxmlElementSetAttr(typedefnode, "name",
				       node->value.text.string);
		    sort_node(tree, typedefnode);
		    mxmlDelete(type);

		    type = mxmlNewElement(typedefnode, "type");
                    mxmlNewText(type, 0, "enum");
		    mxmlNewText(type, 1,
		                mxmlElementGetAttr(enumeration, "name"));
		    enumeration = NULL;
		    type = NULL;
		    break;
		  }

		  mxmlDelete(type);
		  type = NULL;
		}
		break;

	    case ':' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< : >>>\n", stderr);
#endif /* DEBUG */
		  mxmlNewText(type, 1, ":");
		}
		break;

	    case '*' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< * >>>\n", stderr);
#endif /* DEBUG */
                  ch = type->last_child->value.text.string[0];
		  mxmlNewText(type, isalnum(ch) || ch == '_', "*");
		}
		break;

	    case ',' :
		if (type && !enumeration)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< , >>>\n", stderr);
#endif /* DEBUG */
		  mxmlNewText(type, 0, ",");
		}
		break;

	    case '&' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< & >>>\n", stderr);
#endif /* DEBUG */
		  mxmlNewText(type, 1, "&");
		}
		break;

	    case '+' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< + >>>\n", stderr);
#endif /* DEBUG */
                  ch = type->last_child->value.text.string[0];
		  mxmlNewText(type, isalnum(ch) || ch == '_', "+");
		}
		break;

	    case '-' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< - >>>\n", stderr);
#endif /* DEBUG */
                  ch = type->last_child->value.text.string[0];
		  mxmlNewText(type, isalnum(ch) || ch == '_', "-");
		}
		break;

	    case '=' :
		if (type)
		{
#ifdef DEBUG
                  fputs("Identifier: <<<< = >>>\n", stderr);
#endif /* DEBUG */
                  ch = type->last_child->value.text.string[0];
		  mxmlNewText(type, isalnum(ch) || ch == '_', "=");
		}
		break;

            default :			/* Other */
	        if (isalnum(ch) || ch == '_' || ch == '.' || ch == ':' || ch == '~')
		{
		  state     = STATE_IDENTIFIER;
		  bufptr    = buffer;
		  *bufptr++ = ch;
		}
		break;
          }
          break;

      case STATE_PREPROCESSOR :		/* Preprocessor directive */
          if (ch == '\n')
	    state = STATE_NONE;
	  else if (ch == '\\')
	    getc(fp);
          break;

      case STATE_C_COMMENT :		/* Inside a C comment */
          switch (ch)
	  {
	    case '\n' :
	        while ((ch = getc(fp)) != EOF)
		  if (ch == '*')
		  {
		    ch = getc(fp);

		    if (ch == '/')
		    {
		      *bufptr = '\0';

        	      if (comment->child != comment->last_child)
		      {
#ifdef DEBUG
			fprintf(stderr, "    removing comment %p(%20.20s), last comment %p(%20.20s)...\n",
				comment->child,
				comment->child ? comment->child->value.text.string : "",
				comment->last_child,
				comment->last_child ? comment->last_child->value.text.string : "");
#endif /* DEBUG */
			mxmlDelete(comment->child);
#ifdef DEBUG
			fprintf(stderr, "    new comment %p, last comment %p...\n",
				comment->child, comment->last_child);
#endif /* DEBUG */
		      }

#ifdef DEBUG
                      fprintf(stderr,
		              "    processing comment, variable=%p, "
		              "constant=%p, typedefnode=%p, tree=\"%s\"\n",
		              variable, constant, typedefnode,
			      tree->value.element.name);
#endif /* DEBUG */

		      if (variable)
		      {
		        if (strstr(buffer, "@private@"))
			{
			 /*
			  * Delete private variables...
			  */

			  mxmlDelete(variable);
			}
			else
			{
			  description = mxmlNewElement(variable, "description");
#ifdef DEBUG
			  fprintf(stderr,
			          "    adding comment %p/%p to variable...\n",
			          comment->last_child, comment->child);
#endif /* DEBUG */
			  mxmlNewOpaque(comment, buffer);
			  update_comment(variable, mxmlNewOpaque(description, buffer));
                        }

			variable = NULL;
		      }
		      else if (constant)
		      {
		        if (strstr(buffer, "@private@"))
			{
			 /*
			  * Delete private constants...
			  */

			  mxmlDelete(constant);
			}
			else
			{
			  description = mxmlNewElement(constant, "description");
#ifdef DEBUG
			  fprintf(stderr,
			          "    adding comment %p/%p to constant...\n",
				  comment->last_child, comment->child);
#endif /* DEBUG */
			  mxmlNewOpaque(comment, buffer);
			  update_comment(constant, mxmlNewOpaque(description, buffer));
			}

			constant = NULL;
		      }
		      else if (typedefnode)
		      {
		        if (strstr(buffer, "@private@"))
			{
			 /*
			  * Delete private typedefs...
			  */

			  mxmlDelete(typedefnode);

			  if (structclass)
			  {
			    mxmlDelete(structclass);
			    structclass = NULL;
			  }

			  if (enumeration)
			  {
			    mxmlDelete(enumeration);
			    enumeration = NULL;
			  }
			}
			else
			{
			  description = mxmlNewElement(typedefnode, "description");
#ifdef DEBUG
			  fprintf(stderr,
			          "    adding comment %p/%p to typedef %s...\n",
				  comment->last_child, comment->child,
				  mxmlElementGetAttr(typedefnode, "name"));
#endif /* DEBUG */
			  mxmlNewOpaque(comment, buffer);
			  update_comment(typedefnode, mxmlNewOpaque(description, buffer));

			  if (structclass)
			  {
			    description = mxmlNewElement(structclass, "description");
			    update_comment(structclass,
					   mxmlNewOpaque(description, buffer));
			  }
			  else if (enumeration)
			  {
			    description = mxmlNewElement(enumeration, "description");
			    update_comment(enumeration,
					   mxmlNewOpaque(description, buffer));
			  }
			}

			typedefnode = NULL;
		      }
		      else if (strcmp(tree->value.element.name, "mxmldoc") &&
		               !mxmlFindElement(tree, tree, "description",
			                        NULL, NULL, MXML_DESCEND_FIRST))
                      {
        		description = mxmlNewElement(tree, "description");
#ifdef DEBUG
			fprintf(stderr, "    adding comment %p/%p to parent...\n",
			        comment->last_child, comment->child);
#endif /* DEBUG */
        		mxmlNewOpaque(comment, buffer);
			update_comment(tree, mxmlNewOpaque(description, buffer));
		      }
		      else
		      {
#ifdef DEBUG
		        fprintf(stderr, "    before adding comment, child=%p, last_child=%p\n",
			        comment->child, comment->last_child);
#endif /* DEBUG */
        		mxmlNewOpaque(comment, buffer);
#ifdef DEBUG
		        fprintf(stderr, "    after adding comment, child=%p, last_child=%p\n",
			        comment->child, comment->last_child);
#endif /* DEBUG */
                      }
#ifdef DEBUG
		      fprintf(stderr, "C comment: <<<< %s >>>\n", buffer);
#endif /* DEBUG */

		      state = STATE_NONE;
		      break;
		    }
		    else
		      ungetc(ch, fp);
		  }
		  else if (ch == '\n' && bufptr > buffer &&
		           bufptr < (buffer + sizeof(buffer) - 1))
		    *bufptr++ = ch;
		  else if (!isspace(ch))
		    break;

		if (ch != EOF)
		  ungetc(ch, fp);

                if (bufptr > buffer && bufptr < (buffer + sizeof(buffer) - 1))
		  *bufptr++ = '\n';
		break;

	    case '/' :
	        if (ch == '/' && bufptr > buffer && bufptr[-1] == '*')
		{
		  while (bufptr > buffer &&
		         (bufptr[-1] == '*' || isspace(bufptr[-1] & 255)))
		    bufptr --;
		  *bufptr = '\0';

        	  if (comment->child != comment->last_child)
		  {
#ifdef DEBUG
		    fprintf(stderr, "    removing comment %p(%20.20s), last comment %p(%20.20s)...\n",
			    comment->child,
			    comment->child ? comment->child->value.text.string : "",
			    comment->last_child,
			    comment->last_child ? comment->last_child->value.text.string : "");
#endif /* DEBUG */
		    mxmlDelete(comment->child);
#ifdef DEBUG
		    fprintf(stderr, "    new comment %p, last comment %p...\n",
			    comment->child, comment->last_child);
#endif /* DEBUG */
		  }

#ifdef DEBUG
                  fprintf(stderr,
		          "    processing comment, variable=%p, "
		          "constant=%p, typedefnode=%p, tree=\"%s\"\n",
		          variable, constant, typedefnode,
			  tree->value.element.name);
#endif /* DEBUG */

		  if (variable)
		  {
		    if (strstr(buffer, "@private@"))
		    {
		     /*
		      * Delete private variables...
		      */

		      mxmlDelete(variable);
		    }
		    else
		    {
		      description = mxmlNewElement(variable, "description");
#ifdef DEBUG
		      fprintf(stderr, "    adding comment %p/%p to variable...\n",
		              comment->last_child, comment->child);
#endif /* DEBUG */
		      mxmlNewOpaque(comment, buffer);
		      update_comment(variable, mxmlNewOpaque(description, buffer));
                    }

		    variable = NULL;
		  }
		  else if (constant)
		  {
		    if (strstr(buffer, "@private@"))
		    {
		     /*
		      * Delete private constants...
		      */

		      mxmlDelete(constant);
		    }
		    else
		    {
		      description = mxmlNewElement(constant, "description");
#ifdef DEBUG
		      fprintf(stderr, "    adding comment %p/%p to constant...\n",
		              comment->last_child, comment->child);
#endif /* DEBUG */
		      mxmlNewOpaque(comment, buffer);
		      update_comment(constant, mxmlNewOpaque(description, buffer));
		    }

		    constant = NULL;
		  }
		  else if (typedefnode)
		  {
		    if (strstr(buffer, "@private@"))
		    {
		     /*
		      * Delete private typedefs...
		      */

		      mxmlDelete(typedefnode);

		      if (structclass)
		      {
			mxmlDelete(structclass);
			structclass = NULL;
		      }

		      if (enumeration)
		      {
			mxmlDelete(enumeration);
			enumeration = NULL;
		      }
		    }
		    else
		    {
		      description = mxmlNewElement(typedefnode, "description");
#ifdef DEBUG
		      fprintf(stderr,
		              "    adding comment %p/%p to typedef %s...\n",
			      comment->last_child, comment->child,
			      mxmlElementGetAttr(typedefnode, "name"));
#endif /* DEBUG */
		      mxmlNewOpaque(comment, buffer);
		      update_comment(typedefnode, mxmlNewOpaque(description, buffer));

		      if (structclass)
		      {
			description = mxmlNewElement(structclass, "description");
			update_comment(structclass, mxmlNewOpaque(description, buffer));
		      }
		      else if (enumeration)
		      {
			description = mxmlNewElement(enumeration, "description");
			update_comment(enumeration, mxmlNewOpaque(description, buffer));
		      }
		    }

		    typedefnode = NULL;
		  }
		  else if (strcmp(tree->value.element.name, "mxmldoc") &&
		           !mxmlFindElement(tree, tree, "description",
			                    NULL, NULL, MXML_DESCEND_FIRST))
                  {
        	    description = mxmlNewElement(tree, "description");
#ifdef DEBUG
		    fprintf(stderr, "    adding comment %p/%p to parent...\n",
		            comment->last_child, comment->child);
#endif /* DEBUG */
		    mxmlNewOpaque(comment, buffer);
		    update_comment(tree, mxmlNewOpaque(description, buffer));
		  }
		  else
        	    mxmlNewOpaque(comment, buffer);

#ifdef DEBUG
		  fprintf(stderr, "C comment: <<<< %s >>>\n", buffer);
#endif /* DEBUG */

		  state = STATE_NONE;
		  break;
		}

	    default :
	        if (ch == ' ' && bufptr == buffer)
		  break;

	        if (bufptr < (buffer + sizeof(buffer) - 1))
		  *bufptr++ = ch;
		break;
          }
          break;

      case STATE_CXX_COMMENT :		/* Inside a C++ comment */
          if (ch == '\n')
	  {
	    state = STATE_NONE;
	    *bufptr = '\0';

            if (comment->child != comment->last_child)
	    {
#ifdef DEBUG
	      fprintf(stderr, "    removing comment %p(%20.20s), last comment %p(%20.20s)...\n",
		      comment->child,
		      comment->child ? comment->child->value.text.string : "",
		      comment->last_child,
		      comment->last_child ? comment->last_child->value.text.string : "");
#endif /* DEBUG */
	      mxmlDelete(comment->child);
#ifdef DEBUG
	      fprintf(stderr, "    new comment %p, last comment %p...\n",
		      comment->child, comment->last_child);
#endif /* DEBUG */
	    }

	    if (variable)
	    {
	      if (strstr(buffer, "@private@"))
	      {
	       /*
		* Delete private variables...
		*/

		mxmlDelete(variable);
	      }
	      else
	      {
		description = mxmlNewElement(variable, "description");
#ifdef DEBUG
		fprintf(stderr, "    adding comment %p/%p to variable...\n",
		        comment->last_child, comment->child);
#endif /* DEBUG */
		mxmlNewOpaque(comment, buffer);
		update_comment(variable, mxmlNewOpaque(description, buffer));
              }

	      variable = NULL;
	    }
	    else if (constant)
	    {
	      if (strstr(buffer, "@private@"))
	      {
	       /*
		* Delete private constants...
		*/

		mxmlDelete(constant);
	      }
	      else
	      {
		description = mxmlNewElement(constant, "description");
#ifdef DEBUG
		fprintf(stderr, "    adding comment %p/%p to constant...\n",
		        comment->last_child, comment->child);
#endif /* DEBUG */
		mxmlNewOpaque(comment, buffer);
		update_comment(constant, mxmlNewOpaque(description, buffer));
              }

	      constant = NULL;
	    }
	    else if (typedefnode)
	    {
	      if (strstr(buffer, "@private@"))
	      {
	       /*
		* Delete private typedefs...
		*/

		mxmlDelete(typedefnode);
		typedefnode = NULL;

		if (structclass)
		{
		  mxmlDelete(structclass);
		  structclass = NULL;
		}

		if (enumeration)
		{
		  mxmlDelete(enumeration);
		  enumeration = NULL;
		}
	      }
	      else
	      {
		description = mxmlNewElement(typedefnode, "description");
#ifdef DEBUG
		fprintf(stderr, "    adding comment %p/%p to typedef %s...\n",
			comment->last_child, comment->child,
			mxmlElementGetAttr(typedefnode, "name"));
#endif /* DEBUG */
		mxmlNewOpaque(comment, buffer);
		update_comment(typedefnode, mxmlNewOpaque(description, buffer));

		if (structclass)
		{
		  description = mxmlNewElement(structclass, "description");
		  update_comment(structclass, mxmlNewOpaque(description, buffer));
		}
		else if (enumeration)
		{
		  description = mxmlNewElement(enumeration, "description");
		  update_comment(enumeration, mxmlNewOpaque(description, buffer));
		}
              }
	    }
	    else if (strcmp(tree->value.element.name, "mxmldoc") &&
		     !mxmlFindElement(tree, tree, "description",
			              NULL, NULL, MXML_DESCEND_FIRST))
            {
              description = mxmlNewElement(tree, "description");
#ifdef DEBUG
	      fprintf(stderr, "    adding comment %p/%p to parent...\n",
	              comment->last_child, comment->child);
#endif /* DEBUG */
	      mxmlNewOpaque(comment, buffer);
	      update_comment(tree, mxmlNewOpaque(description, buffer));
	    }
	    else
              mxmlNewOpaque(comment, buffer);

#ifdef DEBUG
	    fprintf(stderr, "C++ comment: <<<< %s >>>\n", buffer);
#endif /* DEBUG */
	  }
	  else if (ch == ' ' && bufptr == buffer)
	    break;
	  else if (bufptr < (buffer + sizeof(buffer) - 1))
	    *bufptr++ = ch;
          break;

      case STATE_STRING :		/* Inside a string constant */
	  *bufptr++ = ch;

          if (ch == '\\')
	    *bufptr++ = getc(fp);
	  else if (ch == '\"')
	  {
	    *bufptr = '\0';

	    if (type)
	      mxmlNewText(type, type->child != NULL, buffer);

	    state = STATE_NONE;
	  }
          break;

      case STATE_CHARACTER :		/* Inside a character constant */
	  *bufptr++ = ch;

          if (ch == '\\')
	    *bufptr++ = getc(fp);
	  else if (ch == '\'')
	  {
	    *bufptr = '\0';

	    if (type)
	      mxmlNewText(type, type->child != NULL, buffer);

	    state = STATE_NONE;
	  }
          break;

      case STATE_IDENTIFIER :		/* Inside a keyword or identifier */
	  if (isalnum(ch) || ch == '_' || ch == '[' || ch == ']' ||
	      (ch == ',' && (parens > 1 || (type && !enumeration && !function))) ||
	      ch == ':' || ch == '.' || ch == '~')
	  {
	    if (bufptr < (buffer + sizeof(buffer) - 1))
	      *bufptr++ = ch;
	  }
	  else
	  {
	    ungetc(ch, fp);
	    *bufptr = '\0';
	    state   = STATE_NONE;

#ifdef DEBUG
            fprintf(stderr, "    braces=%d, type=%p, type->child=%p, buffer=\"%s\"\n",
	            braces, type, type ? type->child : NULL, buffer);
#endif /* DEBUG */

            if (!braces)
	    {
	      if (!type || !type->child)
	      {
		if (!strcmp(tree->value.element.name, "class"))
		{
		  if (!strcmp(buffer, "public") ||
	              !strcmp(buffer, "public:"))
		  {
		    scope = "public";
#ifdef DEBUG
		    fputs("    scope = public\n", stderr);
#endif /* DEBUG */
		    break;
		  }
		  else if (!strcmp(buffer, "private") ||
	                   !strcmp(buffer, "private:"))
		  {
		    scope = "private";
#ifdef DEBUG
		    fputs("    scope = private\n", stderr);
#endif /* DEBUG */
		    break;
		  }
		  else if (!strcmp(buffer, "protected") ||
	                   !strcmp(buffer, "protected:"))
		  {
		    scope = "protected";
#ifdef DEBUG
		    fputs("    scope = protected\n", stderr);
#endif /* DEBUG */
		    break;
		  }
		}
	      }

	      if (!type)
                type = mxmlNewElement(MXML_NO_PARENT, "type");

#ifdef DEBUG
              fprintf(stderr, "    function=%p (%s), type->child=%p, ch='%c', parens=%d\n",
	              function,
		      function ? mxmlElementGetAttr(function, "name") : "null",
	              type->child, ch, parens);
#endif /* DEBUG */

              if (!function && ch == '(')
	      {
	        if (type->child &&
		    !strcmp(type->child->value.text.string, "extern"))
		{
		 /*
		  * Remove external declarations...
		  */

		  mxmlDelete(type);
		  type = NULL;
		  break;
		}

	        function = mxmlNewElement(MXML_NO_PARENT, "function");
		if ((bufptr = strchr(buffer, ':')) != NULL && bufptr[1] == ':')
		{
		  *bufptr = '\0';
		  bufptr += 2;

		  if ((fstructclass =
		           mxmlFindElement(tree, tree, "class", "name", buffer,
		                           MXML_DESCEND_FIRST)) == NULL)
		    fstructclass =
		        mxmlFindElement(tree, tree, "struct", "name", buffer,
		                        MXML_DESCEND_FIRST);
		}
		else
		  bufptr = buffer;

		mxmlElementSetAttr(function, "name", bufptr);

		if (scope)
		  mxmlElementSetAttr(function, "scope", scope);

#ifdef DEBUG
                fprintf(stderr, "function: %s\n", buffer);
		fprintf(stderr, "    scope = %s\n", scope ? scope : "(null)");
		fprintf(stderr, "    comment = %p\n", comment);
		fprintf(stderr, "    child = (%p) %s\n",
		        comment->child,
			comment->child ?
			    comment->child->value.text.string : "(null)");
		fprintf(stderr, "    last_child = (%p) %s\n",
		        comment->last_child,
			comment->last_child ?
			    comment->last_child->value.text.string : "(null)");
#endif /* DEBUG */

                if (type->last_child && (strcmp(type->last_child->value.text.string, "void") || !strcmp(type->child->value.text.string, "static")))
		{
                  returnvalue = mxmlNewElement(function, "returnvalue");

		  mxmlAdd(returnvalue, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type);

		  description = mxmlNewElement(returnvalue, "description");
#ifdef DEBUG
		  fprintf(stderr, "    adding comment %p/%p to returnvalue...\n",
		          comment->last_child, comment->child);
#endif /* DEBUG */
		  update_comment(returnvalue, comment->last_child);
		  mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		          comment->last_child);
                }
		else
		  mxmlDelete(type);

		description = mxmlNewElement(function, "description");
#ifdef DEBUG
		  fprintf(stderr, "    adding comment %p/%p to function...\n",
		          comment->last_child, comment->child);
#endif /* DEBUG */
		update_comment(function, comment->last_child);
		mxmlAdd(description, MXML_ADD_AFTER, MXML_ADD_TO_PARENT,
		        comment->last_child);

		type = NULL;
	      }
	      else if (function && ((ch == ')' && parens == 1) || ch == ','))
	      {
	       /*
	        * Argument definition...
		*/

                if (strcmp(buffer, "void"))
		{
	          mxmlNewText(type, type->child != NULL &&
		                    type->last_child->value.text.string[0] != '(' &&
				    type->last_child->value.text.string[0] != '*',
			      buffer);

#ifdef DEBUG
                  fprintf(stderr, "Argument: <<<< %s >>>\n", buffer);
#endif /* DEBUG */

	          variable = add_variable(function, "argument", type);
		}
		else
		  mxmlDelete(type);

		type = NULL;
	      }
              else if (type->child && !function && (ch == ';' || ch == ','))
	      {
#ifdef DEBUG
	        fprintf(stderr, "    got semicolon, typedefnode=%p, structclass=%p\n",
		        typedefnode, structclass);
#endif /* DEBUG */

	        if (typedefnode || structclass)
		{
#ifdef DEBUG
                  fprintf(stderr, "Typedef/struct/class: <<<< %s >>>>\n", buffer);
#endif /* DEBUG */

		  if (typedefnode)
		  {
		    mxmlElementSetAttr(typedefnode, "name", buffer);

                    sort_node(tree, typedefnode);
		  }

		  if (structclass && !mxmlElementGetAttr(structclass, "name"))
		  {
#ifdef DEBUG
		    fprintf(stderr, "setting struct/class name to %s!\n",
		            type->last_child->value.text.string);
#endif /* DEBUG */
		    mxmlElementSetAttr(structclass, "name", buffer);

		    sort_node(tree, structclass);
		    structclass = NULL;
		  }

		  if (typedefnode)
		    mxmlAdd(typedefnode, MXML_ADD_BEFORE, MXML_ADD_TO_PARENT,
		            type);
                  else
		    mxmlDelete(type);

		  type        = NULL;
		  typedefnode = NULL;
		}
		else if (type->child &&
		         !strcmp(type->child->value.text.string, "typedef"))
		{
		 /*
		  * Simple typedef...
		  */

#ifdef DEBUG
                  fprintf(stderr, "Typedef: <<<< %s >>>\n", buffer);
#endif /* DEBUG */

		  typedefnode = mxmlNewElement(MXML_NO_PARENT, "typedef");
		  mxmlElementSetAttr(typedefnode, "name", buffer);
		  mxmlDelete(type->child);

                  sort_node(tree, typedefnode);

                  if (type->child)
		    type->child->value.text.whitespace = 0;

		  mxmlAdd(typedefnode, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, type);
		  type = NULL;
		}
		else if (!parens)
		{
		 /*
	          * Variable definition...
		  */

	          if (type->child &&
		      !strcmp(type->child->value.text.string, "static") &&
		      !strcmp(tree->value.element.name, "mxmldoc"))
		  {
		   /*
		    * Remove static functions...
		    */

		    mxmlDelete(type);
		    type = NULL;
		    break;
		  }

	          mxmlNewText(type, type->child != NULL &&
		                    type->last_child->value.text.string[0] != '(' &&
				    type->last_child->value.text.string[0] != '*',
			      buffer);

#ifdef DEBUG
                  fprintf(stderr, "Variable: <<<< %s >>>>\n", buffer);
                  fprintf(stderr, "    scope = %s\n", scope ? scope : "(null)");
#endif /* DEBUG */

	          variable = add_variable(MXML_NO_PARENT, "variable", type);
		  type     = NULL;

		  sort_node(tree, variable);

		  if (scope)
		    mxmlElementSetAttr(variable, "scope", scope);
		}
              }
	      else
              {
#ifdef DEBUG
                fprintf(stderr, "Identifier: <<<< %s >>>>\n", buffer);
#endif /* DEBUG */

	        mxmlNewText(type, type->child != NULL &&
		                  type->last_child->value.text.string[0] != '(' &&
				  type->last_child->value.text.string[0] != '*',
			    buffer);
	      }
	    }
	    else if (enumeration && !isdigit(buffer[0] & 255))
	    {
#ifdef DEBUG
	      fprintf(stderr, "Constant: <<<< %s >>>\n", buffer);
#endif /* DEBUG */

	      constant = mxmlNewElement(MXML_NO_PARENT, "constant");
	      mxmlElementSetAttr(constant, "name", buffer);
	      sort_node(enumeration, constant);
	    }
	    else if (type)
	    {
	      mxmlDelete(type);
	      type = NULL;
	    }
	  }
          break;
    }

#if DEBUG > 1
    if (state != oldstate)
    {
      fprintf(stderr, "    changed states from %s to %s on receipt of character '%c'...\n",
              states[oldstate], states[state], oldch);
      fprintf(stderr, "    variable = %p\n", variable);
      if (type)
      {
        fputs("    type =", stderr);
        for (temp = type->child; temp; temp = temp->next)
	  fprintf(stderr, " \"%s\"", temp->value.text.string);
	fputs("\n", stderr);
      }
    }
#endif /* DEBUG > 1 */
  }

  mxmlDelete(comment);

 /*
  * All done, return with no errors...
  */

  return (0);
}


/*
 * 'sort_node()' - Insert a node sorted into a tree.
 */

static void
sort_node(mxml_node_t *tree,		/* I - Tree to sort into */
          mxml_node_t *node)		/* I - Node to add */
{
  mxml_node_t	*temp;			/* Current node */
  const char	*tempname,		/* Name of current node */
		*nodename,		/* Name of node */
		*scope;			/* Scope */


#if DEBUG > 1
  fprintf(stderr, "    sort_node(tree=%p, node=%p)\n", tree, node);
#endif /* DEBUG > 1 */

 /*
  * Range check input...
  */

  if (!tree || !node || node->parent == tree)
    return;

 /*
  * Get the node name...
  */

  if ((nodename = mxmlElementGetAttr(node, "name")) == NULL)
    return;

  if (nodename[0] == '_')
    return;				/* Hide private names */

#if DEBUG > 1
  fprintf(stderr, "        nodename=%p (\"%s\")\n", nodename, nodename);
#endif /* DEBUG > 1 */

 /*
  * Delete any existing definition at this level, if one exists...
  */

  if ((temp = mxmlFindElement(tree, tree, node->value.element.name,
                              "name", nodename, MXML_DESCEND_FIRST)) != NULL)
  {
   /*
    * Copy the scope if needed...
    */

    if ((scope = mxmlElementGetAttr(temp, "scope")) != NULL &&
        mxmlElementGetAttr(node, "scope") == NULL)
    {
#ifdef DEBUG
      fprintf(stderr, "    copying scope %s for %s\n", scope, nodename);
#endif /* DEBUG */

      mxmlElementSetAttr(node, "scope", scope);
    }

    mxmlDelete(temp);
  }

 /*
  * Add the node into the tree at the proper place...
  */

  for (temp = tree->child; temp; temp = temp->next)
  {
#if DEBUG > 1
    fprintf(stderr, "        temp=%p\n", temp);
#endif /* DEBUG > 1 */

    if ((tempname = mxmlElementGetAttr(temp, "name")) == NULL)
      continue;

#if DEBUG > 1
    fprintf(stderr, "        tempname=%p (\"%s\")\n", tempname, tempname);
#endif /* DEBUG > 1 */

    if (strcmp(nodename, tempname) < 0)
      break;
  }

  if (temp)
    mxmlAdd(tree, MXML_ADD_BEFORE, temp, node);
  else
    mxmlAdd(tree, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, node);
}


/*
 * 'update_comment()' - Update a comment node.
 */

static void
update_comment(mxml_node_t *parent,	/* I - Parent node */
               mxml_node_t *comment)	/* I - Comment node */
{
  char	*ptr;				/* Pointer into comment */


#ifdef DEBUG
  fprintf(stderr, "update_comment(parent=%p, comment=%p)\n",
          parent, comment);
#endif /* DEBUG */

 /*
  * Range check the input...
  */

  if (!parent || !comment)
    return;

 /*
  * Convert "\/" to "/"...
  */

  for (ptr = strstr(comment->value.opaque, "\\/");
       ptr;
       ptr = strstr(ptr, "\\/"))
    safe_strcpy(ptr, ptr + 1);

 /*
  * Update the comment...
  */

  ptr = comment->value.opaque;

  if (*ptr == '\'')
  {
   /*
    * Convert "'name()' - description" to "description".
    */

    for (ptr ++; *ptr && *ptr != '\''; ptr ++);

    if (*ptr == '\'')
    {
      ptr ++;
      while (isspace(*ptr & 255))
        ptr ++;

      if (*ptr == '-')
        ptr ++;

      while (isspace(*ptr & 255))
        ptr ++;

      safe_strcpy(comment->value.opaque, ptr);
    }
  }
  else if (!strncmp(ptr, "I ", 2) || !strncmp(ptr, "O ", 2) ||
           !strncmp(ptr, "IO ", 3))
  {
   /*
    * 'Convert "I - description", "IO - description", or "O - description"
    * to description + direction attribute.
    */

    ptr = strchr(ptr, ' ');
    *ptr++ = '\0';

    if (!strcmp(parent->value.element.name, "argument"))
      mxmlElementSetAttr(parent, "direction", comment->value.opaque);

    while (isspace(*ptr & 255))
      ptr ++;

    if (*ptr == '-')
      ptr ++;

    while (isspace(*ptr & 255))
      ptr ++;

    safe_strcpy(comment->value.opaque, ptr);
  }

 /*
  * Eliminate leading and trailing *'s...
  */

  for (ptr = comment->value.opaque; *ptr == '*'; ptr ++);
  for (; isspace(*ptr & 255); ptr ++);
  if (ptr > comment->value.opaque)
    safe_strcpy(comment->value.opaque, ptr);

  for (ptr = comment->value.opaque + strlen(comment->value.opaque) - 1;
       ptr > comment->value.opaque && *ptr == '*';
       ptr --)
    *ptr = '\0';
  for (; ptr > comment->value.opaque && isspace(*ptr & 255); ptr --)
    *ptr = '\0';

#ifdef DEBUG
  fprintf(stderr, "    updated comment = %s\n", comment->value.opaque);
#endif /* DEBUG */
}


/*
 * 'usage()' - Show program usage...
 */

static void
usage(const char *option)		/* I - Unknown option */
{
  if (option)
    printf("mxmldoc: Bad option \"%s\"!\n\n", option);

  puts("Usage: mxmldoc [options] [filename.xml] [source files] >filename.html");
  puts("Options:");
  puts("    --author name              Set author name");
  puts("    --body bodyfile            Set body file (markdown supported)");
  puts("    --copyright text           Set copyright text");
  puts("    --coverimage image.png     Set cover image (EPUB)");
  puts("    --css filename.css         Set CSS stylesheet file");
  puts("    --docset bundleid.docset   Generate documentation set");
  puts("    --docversion version       Set documentation version");
  puts("    --epub filename.epub       Generate EPUB file");
  puts("    --feedname name            Set documentation set feed name");
  puts("    --feedurl url              Set documentation set feed URL");
  puts("    --footer footerfile        Set footer file");
  puts("    --framed basename          Generate framed HTML to basename*.html");
  puts("    --header headerfile        Set header file");
  puts("    --man name                 Generate man page");
  puts("    --no-output                Do no generate documentation file");
  puts("    --section section          Set section name");
  puts("    --title title              Set documentation title");
  puts("    --tokens path              Generate Xcode docset Tokens.xml file");
  puts("    --version                  Show mxmldoc/Mini-XML version");

  exit(1);
}


/*
 * 'write_description()' - Write the description text.
 */

static void
write_description(
    FILE        *out,			/* I - Output file */
    int         mode,                   /* I - Output mode */
    mxml_node_t *description,		/* I - Description node */
    const char  *element,		/* I - HTML element, if any */
    int         summary)		/* I - Show summary (-1 for all) */
{
  char	text[10240],			/* Text for description */
        *start,				/* Start of code/link */
	*ptr;				/* Pointer into text */
  int	col;				/* Current column */


  if (!description)
    return;

  get_text(description, text, sizeof(text));

  ptr = strstr(text, "\n\n");

  if (summary)
  {
    if (ptr)
      *ptr = '\0';

    ptr = text;
  }
  else if (summary >= 0 && (!ptr || !ptr[2]))
    return;
  else if (summary >= 0)
    ptr += 2;

  if (element && *element)
    fprintf(out, "        <%s class=\"%s\">", element,
            summary ? "description" : "discussion");
  else if (!summary)
    fputs(".PP\n", out);

  for (col = 0; *ptr; ptr ++)
  {
    if (*ptr == '@' &&
        (!strncmp(ptr + 1, "deprecated@", 11) ||
         !strncmp(ptr + 1, "exclude ", 8) ||
         !strncmp(ptr + 1, "since ", 6)))
    {
      ptr ++;
      while (*ptr && *ptr != '@')
        ptr ++;

      if (!*ptr)
        ptr --;
    }
    else if (!strncmp(ptr, "@code ", 6))
    {
      for (ptr += 6; isspace(*ptr & 255); ptr ++);

      for (start = ptr, ptr ++; *ptr && *ptr != '@'; ptr ++);

      if (*ptr)
        *ptr = '\0';
      else
        ptr --;

      if (element && *element)
      {
        fputs("<code>", out);
        for (; *start; start ++)
        {
          if (*start == '<')
            fputs("&lt;", out);
          else if (*start == '>')
            fputs("&gt;", out);
          else if (*start == '&')
            fputs("&amp;", out);
          else
            putc(*start, out);
        }
        fputs("</code>", out);
      }
      else if (element)
        fputs(start, out);
      else
        fprintf(out, "\\fB%s\\fR", start);
    }
    else if (!strncmp(ptr, "@link ", 6))
    {
      for (ptr += 6; isspace(*ptr & 255); ptr ++);

      for (start = ptr, ptr ++; *ptr && *ptr != '@'; ptr ++);

      if (*ptr)
        *ptr = '\0';
      else
        ptr --;

      if (element && *element)
        fprintf(out, "<a href=\"#%s\"><code>%s</code></a>", start, start);
      else if (element)
        fputs(start, out);
      else
        fprintf(out, "\\fI%s\\fR", start);
    }
    else if (element)
    {
      if (*ptr == '&')
        fputs("&amp;", out);
      else if (*ptr == '<')
        fputs("&lt;", out);
      else if (*ptr == '>')
        fputs("&gt;", out);
      else if (*ptr == '\"')
        fputs("&quot;", out);
      else if (*ptr & 128)
      {
       /*
        * Convert utf-8 to Unicode constant...
        */

        int	ch;			/* Unicode character */


        ch = *ptr & 255;

        if ((ch & 0xe0) == 0xc0)
        {
          ch = ((ch & 0x1f) << 6) | (ptr[1] & 0x3f);
	  ptr ++;
        }
        else if ((ch & 0xf0) == 0xe0)
        {
          ch = ((((ch * 0x0f) << 6) | (ptr[1] & 0x3f)) << 6) | (ptr[2] & 0x3f);
	  ptr += 2;
        }

        fprintf(out, "&#%d;", ch);
      }
      else if (*ptr == '\n' && ptr[1] == '\n' && ptr[2] && ptr[2] != '@')
      {
        if (mode == OUTPUT_EPUB)
          fputs("<br />\n<br />\n", out);
        else
          fputs("<br>\n<br>\n", out);
        ptr ++;
      }
      else
        putc(*ptr, out);
    }
    else if (*ptr == '\n' && ptr[1] == '\n' && ptr[2] && ptr[2] != '@')
    {
      fputs("\n.PP\n", out);
      ptr ++;
    }
    else
    {
      if (*ptr == '\\' || (*ptr == '.' && col == 0))
        putc('\\', out);

      putc(*ptr, out);

      if (*ptr == '\n')
        col = 0;
      else
        col ++;
    }
  }

  if (element && *element)
  {
    if (summary < 0)
      fprintf(out, "</%s>", element);
    else
      fprintf(out, "</%s>\n", element);
  }
  else if (!element)
    putc('\n', out);
}


#ifdef __APPLE__
/*
 * 'write_docset()' - Write Xcode documentation.
 */

static void
write_docset(const char  *docset,	/* I - Documentation set directory */
             const char  *section,	/* I - Section */
             const char  *title,	/* I - Title */
             const char  *author,	/* I - Author's name */
             const char  *copyright,	/* I - Copyright string */
             const char  *docversion,	/* I - Documentation set version */
             const char  *feedname,	/* I - Feed name for doc set */
             const char  *feedurl,	/* I - Feed URL for doc set */
             const char  *cssfile,	/* I - Stylesheet file */
             const char  *headerfile,	/* I - Header file */
             const char  *bodyfile,	/* I - Body file */
             mmd_t       *body,		/* I - Markdown body */
             mxml_node_t *doc,		/* I - XML documentation */
             const char  *footerfile)	/* I - Footer file */
{
  FILE  	*out;			/* Output file */
  char	        filename[1024];		/* Current output filename */
  toc_t	        *toc;			/* Table of contents */
  const char	*id;			/* Identifier */
  size_t	i;			/* Looping var */
  toc_entry_t	*tentry;		/* Current table of contents */
  int		toc_level;		/* Current table-of-contents level */
  int		xmlid = 1;		/* Current XML node ID */
  const char	*indent;		/* Indentation */



 /*
  * Create the table-of-contents entries...
  */

  toc = build_toc(doc, bodyfile, body, OUTPUT_DOCSET);

 /*
  * Create an Xcode documentation set - start by removing any existing
  * output directory...
  */

  if (!access(docset, 0) && !remove_directory(docset))
    return;

 /*
  * Then make the Apple standard bundle directory structure...
  */

  if (mkdir(docset, 0755))
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", docset,
            strerror(errno));
    return;
  }

  snprintf(filename, sizeof(filename), "%s/Contents", docset);
  if (mkdir(filename, 0755))
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

  snprintf(filename, sizeof(filename), "%s/Contents/Resources", docset);
  if (mkdir(filename, 0755))
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

  snprintf(filename, sizeof(filename), "%s/Contents/Resources/Documentation",
           docset);
  if (mkdir(filename, 0755))
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

 /*
  * The Info.plist file, which describes the documentation set...
  */

  if ((id = strrchr(docset, '/')) != NULL)
    id ++;
  else
    id = docset;

  snprintf(filename, sizeof(filename), "%s/Contents/Info.plist", docset);
  if ((out = fopen(filename, "w")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

  fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
        "<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
        "<plist version=\"1.0\">\n"
        "  <dict>\n"
        "    <key>CFBundleIdentifier</key>\n"
        "    <string>", out);
  write_string(out, id, OUTPUT_HTML);
  fputs("</string>\n"
        "    <key>CFBundleName</key>\n"
        "    <string>", out);
  write_string(out, title, OUTPUT_HTML);
  fputs("</string>\n"
        "    <key>CFBundleVersion</key>\n"
        "    <string>", out);
  write_string(out, docversion ? docversion : "0.0", OUTPUT_HTML);
  fputs("</string>\n"
        "    <key>CFBundleShortVersionString</key>\n"
        "    <string>", out);
  write_string(out, docversion ? docversion : "0.0", OUTPUT_HTML);
  fputs("</string>\n", out);

  if (feedname)
  {
    fputs("    <key>DocSetFeedName</key>\n"
          "    <string>", out);
    write_string(out, feedname ? feedname : title, OUTPUT_HTML);
    fputs("</string>\n", out);
  }

  if (feedurl)
  {
    fputs("    <key>DocSetFeedURL</key>\n"
          "    <string>", out);
    write_string(out, feedurl, OUTPUT_HTML);
    fputs("</string>\n", out);
  }

  fputs("  </dict>\n"
        "</plist>\n", out);

  fclose(out);

 /*
  * Next the Nodes.xml file...
  */

  snprintf(filename, sizeof(filename), "%s/Contents/Resources/Nodes.xml",
           docset);
  if ((out = fopen(filename, "w")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

  fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
        "<DocSetNodes version=\"1.0\">\n"
        "  <TOC>\n"
        "    <Node id=\"0\">\n"
        "      <Name>", out);
  write_string(out, title, OUTPUT_HTML);
  fputs("      </Name>\n"
        "      <Path>Documentation/index.html</Path>\n"
        "      <Subnodes>\n", out);

  for (i = 0, tentry = toc->entries, toc_level = 1; i < toc->num_entries; i ++, tentry ++)
  {
    if (tentry->level > toc_level)
    {
      toc_level = tentry->level;
    }
    else if (tentry->level < toc_level)
    {
      fputs("        </Subnodes>\n"
            "      </Node>\n", out);
      toc_level = tentry->level;
    }

    indent = toc_level == 2 ? "            " : "      ";

    fprintf(out, "%s<Node id=\"%d\">\n"
                 "%s  <Path>Documentation/index.html</Path>\n"
                 "%s  <Anchor>%s</Anchor>\n"
                 "%s  <Name>", indent, xmlid ++, indent, indent, tentry->anchor, indent);
    write_string(out, tentry->title, OUTPUT_HTML);

    if ((i + 1) < toc->num_entries && tentry[1].level > toc_level)
      fprintf(out, "</Name>\n"
                   "%s  <Subnodes>\n", indent);
    else
      fprintf(out, "</Name>\n"
                   "%s</Node>\n", indent);
  }

  if (toc_level == 2)
    fputs("        </Subnodes>\n"
          "      </Node>\n", out);

  fputs("      </Subnodes>\n"
        "    </Node>\n"
        "  </TOC>\n"
        "</DocSetNodes>\n", out);

  fclose(out);

 /*
  * Then the Tokens.xml file...
  */

  snprintf(filename, sizeof(filename), "%s/Contents/Resources/Tokens.xml",
           docset);
  if ((out = fopen(filename, "w")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

  fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
        "<Tokens version=\"1.0\">\n", out);

  write_tokens(out, doc, "index.html");

  fputs("</Tokens>\n", out);

  fclose(out);

 /*
  * Finally the HTML file...
  */

  snprintf(filename, sizeof(filename),
           "%s/Contents/Resources/Documentation/index.html",
           docset);
  if ((out = fopen(filename, "w")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
            strerror(errno));
    return;
  }

 /*
  * Standard header...
  */

  write_html_head(out, OUTPUT_HTML, section, title, author, copyright, docversion, cssfile);

 /*
  * Header...
  */

  if (headerfile)
  {
   /*
    * Use custom header...
    */

    write_file(out, headerfile, OUTPUT_HTML);
  }
  else
  {
   /*
    * Use standard header...
    */

    fputs("    <h1 class=\"title\">", out);
    write_string(out, title, OUTPUT_HTML);
    fputs("</h1>\n", out);

    if (author)
    {
      fputs("    <p>", out);
      write_string(out, author, OUTPUT_HTML);
      fputs("</p>\n", out);
    }

    if (copyright)
    {
      fputs("    <p>", out);
      write_string(out, copyright, OUTPUT_HTML);
      fputs("</p>\n", out);
    }
  }

 /*
  * Table of contents...
  */

  write_html_toc(out, title, toc, NULL, NULL);

  free_toc(toc);

 /*
  * Body...
  */

  fputs("    <div class=\"body\">\n", out);

  write_html_body(out, OUTPUT_HTML, bodyfile, body, doc);

 /*
  * Footer...
  */

  if (footerfile)
  {
   /*
    * Use custom footer...
    */

    write_file(out, footerfile, OUTPUT_HTML);
  }

  fputs("    </div>\n"
        "  </body>\n"
        "</html>\n", out);

  fclose(out);

 /*
  * When generating document sets, run the docsetutil program to index it...
  */

  if (docset)
  {
    int		argc = 0;		/* Argument count */
    const char	*args[5];		/* Argument array */
    pid_t	pid;			/* Process ID */
    int		status;			/* Exit status */


    args[argc++] = "/usr/bin/xcrun";
    args[argc++] = "docsetutil";
    args[argc++] = "index";
    args[argc++] = docset;
    args[argc  ] = NULL;

    if (posix_spawn(&pid, args[0], NULL, NULL, (char **)args, environ))
    {
      fprintf(stderr, "mxmldoc: Unable to index documentation set \"%s\": %s\n",
              docset, strerror(errno));
    }
    else
    {
      while (wait(&status) != pid);

      if (status)
      {
        if (WIFEXITED(status))
	  fprintf(stderr, "mxmldoc: docsetutil exited with status %d\n",
		  WEXITSTATUS(status));
        else
	  fprintf(stderr, "mxmldoc: docsetutil crashed with signal %d\n",
		  WTERMSIG(status));
      }
      else
      {
       /*
        * Remove unneeded temporary XML files...
	*/

	snprintf(filename, sizeof(filename), "%s/Contents/Resources/Nodes.xml",
		 docset);
        unlink(filename);

	snprintf(filename, sizeof(filename), "%s/Contents/Resources/Tokens.xml",
		 docset);
        unlink(filename);
      }
    }
  }
}
#endif /* __APPLE__ */


/*
 * 'write_element()' - Write an element's text nodes.
 */

static void
write_element(FILE        *out,		/* I - Output file */
              mxml_node_t *doc,		/* I - Document tree */
              mxml_node_t *element,	/* I - Element to write */
              int         mode)		/* I - Output mode */
{
  mxml_node_t	*node;			/* Current node */


  if (!element)
    return;

  for (node = element->child;
       node;
       node = mxmlWalkNext(node, element, MXML_NO_DESCEND))
    if (node->type == MXML_TEXT)
    {
      if (node->value.text.whitespace)
	putc(' ', out);

      if ((mode == OUTPUT_HTML || mode == OUTPUT_EPUB || mode == OUTPUT_DOCSET) &&
          (mxmlFindElement(doc, doc, "class", "name", node->value.text.string,
                           MXML_DESCEND) ||
	   mxmlFindElement(doc, doc, "enumeration", "name",
	                   node->value.text.string, MXML_DESCEND) ||
	   mxmlFindElement(doc, doc, "struct", "name", node->value.text.string,
                           MXML_DESCEND) ||
	   mxmlFindElement(doc, doc, "typedef", "name", node->value.text.string,
                           MXML_DESCEND) ||
	   mxmlFindElement(doc, doc, "union", "name", node->value.text.string,
                           MXML_DESCEND)))
      {
        fputs("<a href=\"#", out);
        write_string(out, node->value.text.string, mode);
	fputs("\">", out);
        write_string(out, node->value.text.string, mode);
	fputs("</a>", out);
      }
      else
        write_string(out, node->value.text.string, mode);
    }

  if (!strcmp(element->value.element.name, "type") &&
      element->last_child->value.text.string[0] != '*')
    putc(' ', out);
}


#ifdef HAVE_ZLIB_H
/*
 * 'write_epub()' - Write documentation as an EPUB file.
 */

static void
write_epub(const char  *epubfile,	/* I - EPUB file (output) */
           const char  *section,	/* I - Section */
           const char  *title,		/* I - Title */
           const char  *author,		/* I - Author */
           const char  *copyright,	/* I - Copyright */
           const char  *docversion,	/* I - Document version */
           const char  *cssfile,	/* I - Stylesheet file */
           const char  *coverimage,	/* I - Cover image file */
           const char  *headerfile,	/* I - Header file */
           const char  *bodyfile,	/* I - Body file */
           mmd_t       *body,		/* I - Markdown body */
           mxml_node_t *doc,		/* I - XML documentation */
           const char  *footerfile)	/* I - Footer file */
{
  int		status = 0;		/* Write status */
  size_t	i;			/* Looping var */
  FILE		*fp;			/* Output file */
  char		epubbase[256],		/* Base name of EPUB file (identifier) */
		*epubptr;		/* Pointer into base name */
  zipc_t	*epub;			/* EPUB ZIP container */
  zipc_file_t	*epubf;			/* File in EPUB ZIP container */
  char		xhtmlfile[1024],	/* XHTML output filename */
		*xhtmlptr;		/* Pointer into output filename */
  mxml_node_t	*package_opf,		/* package_opf file */
                *package,		/* package node */
                *metadata,		/* metadata node */
                *manifest,		/* manifest node */
                *spine,			/* spine node */
                *temp;			/* Other (leaf) node */
  char		identifier[256],	/* dc:identifier string */
		*package_opf_string;	/* package_opf file as a string */
  toc_t		*toc;			/* Table of contents */
  toc_entry_t	*tentry;		/* Current table of contents */
  int		toc_level;		/* Current table-of-contents level */
  static const char *mimetype =		/* mimetype file as a string */
		"application/epub+zip";
  static const char *container_xml =	/* container.xml file as a string */
		"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                "<container xmlns=\"urn:oasis:names:tc:opendocument:xmlns:container\" version=\"1.0\">\n"
                "  <rootfiles>\n"
                "    <rootfile full-path=\"OEBPS/package.opf\" media-type=\"application/oebps-package+xml\"/>\n"
                "  </rootfiles>\n"
                "</container>\n";


 /*
  * Start by writing the XHTML content...
  */

  strlcpy(xhtmlfile, epubfile, sizeof(xhtmlfile));
  if ((xhtmlptr = strstr(xhtmlfile, ".epub")) != NULL)
    strlcpy(xhtmlptr, ".xhtml", sizeof(xhtmlfile) - (size_t)(xhtmlptr - xhtmlfile));
  else
    strlcat(xhtmlfile, ".xhtml", sizeof(xhtmlfile));

  fp = fopen(xhtmlfile, "w");

 /*
  * Standard header...
  */

  write_html_head(fp, OUTPUT_EPUB, section, title, author, copyright, docversion, cssfile);

  if (coverimage)
    fputs("<p><img src=\"cover.png\" width=\"100%\" /></p>", fp);

 /*
  * Header...
  */

  if (headerfile)
  {
   /*
    * Use custom header...
    */

    write_file(fp, headerfile, OUTPUT_EPUB);
  }
  else
  {
   /*
    * Use standard header...
    */

    fputs("    <h1 class=\"title\">", fp);
    write_string(fp, title, OUTPUT_EPUB);
    fputs("</h1>\n", fp);

    if (author)
    {
      fputs("    <p>", fp);
      write_string(fp, author, OUTPUT_EPUB);
      fputs("</p>\n", fp);
    }

    if (copyright)
    {
      fputs("    <p>", fp);
      write_string(fp, copyright, OUTPUT_EPUB);
      fputs("</p>\n", fp);
    }
  }

 /*
  * Body...
  */

  fputs("    <div class=\"body\">\n", fp);

  write_html_body(fp, OUTPUT_EPUB, bodyfile, body, doc);

 /*
  * Footer...
  */

  if (footerfile)
  {
   /*
    * Use custom footer...
    */

    write_file(fp, footerfile, OUTPUT_EPUB);
  }

  fputs("    </div>\n"
        "  </body>\n"
        "</html>\n", fp);

 /*
  * Close XHTML file...
  */

  fclose(fp);

 /*
  * Make the EPUB archive...
  */

  if ((epub = zipcOpen(epubfile, "w")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", epubfile, strerror(errno));
    unlink(xhtmlfile);
    return;
  }

 /*
  * Add the mimetype file...
  */

  status |= zipcCreateFileWithString(epub, "mimetype", mimetype);

 /*
  * The META-INF/ directory...
  */

  status |= zipcCreateDirectory(epub, "META-INF/");

 /*
  * The META-INF/container.xml file...
  */

  if ((epubf = zipcCreateFile(epub, "META-INF/container.xml", 1)) != NULL)
  {
    status |= zipcFilePuts(epubf, container_xml);
    status |= zipcFileFinish(epubf);
  }
  else
    status = -1;

 /*
  * The OEBPS/ directory...
  */

  status |= zipcCreateDirectory(epub, "OEBPS/");

 /*
  * Copy the OEBPS/body.xhtml file...
  */

  status |= zipcCopyFile(epub, "OEBPS/body.xhtml", xhtmlfile, 1, 1);

  unlink(xhtmlfile);

 /*
  * Add the cover image, if specified...
  */

  if (coverimage)
    status |= zipcCopyFile(epub, "OEBPS/cover.png", coverimage, 0, 0);

 /*
  * Now the OEBPS/package.opf file...
  */

  if ((epubptr = strrchr(epubfile, '/')) != NULL)
    strlcpy(epubbase, epubptr + 1, sizeof(epubbase));
  else
    strlcpy(epubbase, epubfile, sizeof(epubbase));

  if ((epubptr = strstr(epubbase, ".epub")) != NULL)
    *epubptr = '\0';

  package_opf = mxmlNewXML("1.0");

  package = mxmlNewElement(package_opf, "package");
  mxmlElementSetAttr(package, "xmlns", "http://www.idpf.org/2007/opf");
  mxmlElementSetAttr(package, "unique-identifier", epubbase);
  mxmlElementSetAttr(package, "version", "3.0");

    metadata = mxmlNewElement(package, "metadata");
    mxmlElementSetAttr(metadata, "xmlns:dc", "http://purl.org/dc/elements/1.1/");
    mxmlElementSetAttr(metadata, "xmlns:opf", "http://www.idpf.org/2007/opf");

      temp = mxmlNewElement(metadata, "dc:title");
      mxmlNewOpaque(temp, title);

      temp = mxmlNewElement(metadata, "dc:creator");
      mxmlNewOpaque(temp, author);

      temp = mxmlNewElement(metadata, "meta");
      mxmlElementSetAttr(temp, "property", "dcterms:modified");
      mxmlNewOpaque(temp, get_iso_date(time(NULL)));

      temp = mxmlNewElement(metadata, "dc:language");
      mxmlNewOpaque(temp, "en-US"); /* TODO: Make this settable */

      temp = mxmlNewElement(metadata, "dc:rights");
      mxmlNewOpaque(temp, copyright);

      temp = mxmlNewElement(metadata, "dc:publisher");
      mxmlNewOpaque(temp, "mxmldoc");

      temp = mxmlNewElement(metadata, "dc:identifier");
      mxmlElementSetAttr(temp, "id", epubbase);
      snprintf(identifier, sizeof(identifier), "%s-%s", epubbase, docversion);
      mxmlNewOpaque(temp, identifier);

      if (coverimage)
      {
        temp = mxmlNewElement(metadata, "meta");
        mxmlElementSetAttr(temp, "name", "cover");
        mxmlElementSetAttr(temp, "content", "cover-image");
      }

    manifest = mxmlNewElement(package, "manifest");

      temp = mxmlNewElement(manifest, "item");
      mxmlElementSetAttr(temp, "id", "nav");
      mxmlElementSetAttr(temp, "href", "nav.xhtml");
      mxmlElementSetAttr(temp, "media-type", "application/xhtml+xml");
      mxmlElementSetAttr(temp, "properties", "nav");

      temp = mxmlNewElement(manifest, "item");
      mxmlElementSetAttr(temp, "id", "body");
      mxmlElementSetAttr(temp, "href", "body.xhtml");
      mxmlElementSetAttr(temp, "media-type", "application/xhtml+xml");

      if (coverimage)
      {
        temp = mxmlNewElement(manifest, "item");
        mxmlElementSetAttr(temp, "id", "cover-image");
        mxmlElementSetAttr(temp, "href", "cover.png");
        mxmlElementSetAttr(temp, "media-type", "image/png");
      }

    spine = mxmlNewElement(package, "spine");

      temp = mxmlNewElement(spine, "itemref");
      mxmlElementSetAttr(temp, "idref", "body");

  package_opf_string = mxmlSaveAllocString(package_opf, epub_ws_cb);

  if ((epubf = zipcCreateFile(epub, "OEBPS/package.opf", 1)) != NULL)
  {
    status |= zipcFilePuts(epubf, package_opf_string);
    status |= zipcFileFinish(epubf);
  }
  else
    status = -1;

  free(package_opf_string);

 /*
  * Then the OEBPS/nav.xhtml file...
  */

  if ((epubf = zipcCreateFile(epub, "OEBPS/nav.xhtml", 1)) != NULL)
  {
    toc = build_toc(doc, bodyfile, body, OUTPUT_EPUB);

    zipcFilePrintf(epubf, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                          "<!DOCTYPE html>\n"
                          "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
                          "  <head>\n"
                          "    <title>%s</title>\n"
                          "    <style>ol { list-style-type: none; }</style>\n"
                          "  </head>\n"
                          "  <body>\n"
                          "    <nav epub:type=\"toc\">\n"
                          "      <ol>\n", title);

    for (i = 0, tentry = toc->entries, toc_level = 1; i < toc->num_entries; i ++, tentry ++)
    {
      if (tentry->level > toc_level)
      {
        toc_level = tentry->level;
      }
      else if (tentry->level < toc_level)
      {
        zipcFilePuts(epubf, "        </ol></li>\n");
        toc_level = tentry->level;
      }

      zipcFilePrintf(epubf, "        %s<li><a href=\"body.xhtml#%s\">%s</a>", toc_level == 1 ? "" : "  ", tentry->anchor, tentry->title);
      if ((i + 1) < toc->num_entries && tentry[1].level > toc_level)
        zipcFilePuts(epubf, "<ol>\n");
      else
        zipcFilePuts(epubf, "</li>\n");
    }

    if (toc_level == 2)
      zipcFilePuts(epubf, "        </ol></li>\n");

    zipcFilePuts(epubf, "      </ol>\n"
                        "    </nav>\n"
                        "  </body>\n"
                        "</html>\n");

    zipcFileFinish(epubf);
    free_toc(toc);
  }
  else
    status = -1;

  if (status)
    fprintf(stderr, "mxmldoc: Unable to write \"%s\": %s\n", epubfile, zipcError(epub));
  else if (zipcClose(epub))
    fprintf(stderr, "mxmldoc: Unable to write \"%s\": %s\n", epubfile, strerror(errno));
}
#endif /* HAVE_ZLIB_H */


/*
 * 'write_file()' - Copy a file to the output.
 */

static void
write_file(FILE       *out,		/* I - Output file */
           const char *file,		/* I - File to copy */
           int        mode)		/* I - Output mode */
{
  FILE	*fp;				/* Copy file */
  char	line[8192];			/* Line from file */


  if ((fp = fopen(file, "r")) == NULL)
  {
    fprintf(stderr, "mxmldoc: Unable to open \"%s\": %s\n", file,
            strerror(errno));
    return;
  }

  if (mode == OUTPUT_EPUB)
  {
    char	*ptr;			/* Pointer into line */

    while (fgets(line, sizeof(line), fp))
    {
      for (ptr = line; *ptr; ptr ++)
      {
        if (!strncmp(ptr, "&nbsp;", 6))
        {
          ptr += 5;
          fputs("&#160;", out);
        }
        else if (!strncmp(ptr, "&copy;", 6))
        {
          ptr += 5;
          fputs("&#169;", out);
        }
        else if (!strncmp(ptr, "&reg;", 5))
        {
          ptr += 4;
          fputs("&#174;", out);
        }
        else if (!strncmp(ptr, "&trade;", 7))
        {
          ptr += 6;
          fputs("&#8482;", out);
        }
        else
          fputc(*ptr, out);
      }
    }
  }
  else
  {
    while (fgets(line, sizeof(line), fp))
      fputs(line, out);
  }

  fclose(fp);
}


/*
 * 'write_function()' - Write documentation for a function.
 */

static void
write_function(FILE        *out,	/* I - Output file */
               int         mode,	/* I - Output mode */
               mxml_node_t *doc,	/* I - Document */
               mxml_node_t *function,	/* I - Function */
	       int         level)	/* I - Base heading level */
{
  mxml_node_t	*arg,			/* Current argument */
		*adesc,			/* Description of argument */
		*description,		/* Description of function */
		*type,			/* Type for argument */
		*node;			/* Node in description */
  const char	*name,			/* Name of function/type */
		*defval;		/* Default value */
  const char	*prefix;		/* Prefix string */
  char		*sep;			/* Newline separator */


  name        = mxmlElementGetAttr(function, "name");
  description = mxmlFindElement(function, function, "description", NULL,
				NULL, MXML_DESCEND_FIRST);

  fprintf(out, "<h%d class=\"%s\">%s<a id=\"%s\">%s</a></h%d>\n", level, level == 3 ? "function" : "method", get_comment_info(description), name, name, level);

  if (description)
    write_description(out, mode, description, "p", 1);

  fputs("<p class=\"code\">\n", out);

  arg = mxmlFindElement(function, function, "returnvalue", NULL,
			NULL, MXML_DESCEND_FIRST);

  if (arg)
    write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL,
					    NULL, MXML_DESCEND_FIRST),
		  OUTPUT_HTML);
  else
    fputs("void ", out);

  fputs(name, out);
  for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
			     MXML_DESCEND_FIRST), prefix = "(";
       arg;
       arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
			     MXML_NO_DESCEND), prefix = ", ")
  {
    type = mxmlFindElement(arg, arg, "type", NULL, NULL,
			   MXML_DESCEND_FIRST);

    fputs(prefix, out);
    if (type->child)
      write_element(out, doc, type, mode);

    fputs(mxmlElementGetAttr(arg, "name"), out);
    if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
      fprintf(out, " %s", defval);
  }

  if (!strcmp(prefix, "("))
    fputs("(void);</p>\n", out);
  else
  {
    fprintf(out,
            ");</p>\n"
	    "<h%d class=\"parameters\">Parameters</h%d>\n"
	    "<table class=\"list\"><tbody>\n", level + 1, level + 1);

    for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
			       MXML_DESCEND_FIRST);
	 arg;
	 arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
			       MXML_NO_DESCEND))
    {
      fprintf(out, "<tr><th>%s</th>\n", mxmlElementGetAttr(arg, "name"));

      adesc = mxmlFindElement(arg, arg, "description", NULL, NULL,
			      MXML_DESCEND_FIRST);

      write_description(out, mode, adesc, "td", -1);
      fputs("</tr>\n", out);
    }

    fputs("</tbody></table>\n", out);
  }

  arg = mxmlFindElement(function, function, "returnvalue", NULL,
			NULL, MXML_DESCEND_FIRST);

  if (arg)
  {
    fprintf(out, "<h%d class=\"returnvalue\">Return Value</h%d>\n", level + 1,
            level + 1);

    adesc = mxmlFindElement(arg, arg, "description", NULL, NULL,
			    MXML_DESCEND_FIRST);

    write_description(out, mode, adesc, "p", 1);
    write_description(out, mode, adesc, "p", 0);
  }

  if (description)
  {
    for (node = description->child; node; node = node->next)
      if (node->value.opaque &&
	  (sep = strstr(node->value.opaque, "\n\n")) != NULL)
      {
	sep += 2;
	if (*sep && strncmp(sep, "@since ", 7) &&
	    strncmp(sep, "@deprecated@", 12))
	  break;
      }

    if (node)
    {
      fprintf(out, "<h%d class=\"discussion\">Discussion</h%d>\n", level + 1,
	      level + 1);
      write_description(out, mode, description, "p", 0);
    }
  }
}


/*
 * 'write_html()' - Write HTML documentation.
 */

static void
write_html(const char  *framefile,	/* I - Framed HTML basename */
	   const char  *section,	/* I - Section */
	   const char  *title,		/* I - Title */
           const char  *author,		/* I - Author's name */
           const char  *copyright,	/* I - Copyright string */
	   const char  *docversion,	/* I - Documentation set version */
	   const char  *cssfile,	/* I - Stylesheet file */
           const char  *coverimage,	/* I - Cover image file */
	   const char  *headerfile,	/* I - Header file */
	   const char  *bodyfile,	/* I - Body file */
           mmd_t       *body,		/* I - Markdown body */
	   mxml_node_t *doc,		/* I - XML documentation */
           const char  *footerfile)	/* I - Footer file */
{
  FILE		*out;			/* Output file */
  const char	*basename;		/* Base filename for framed output */
  char		filename[1024];		/* Current output filename */
  toc_t		*toc;			/* Table of contents */


 /*
  * Create the table-of-contents entries...
  */

  toc = build_toc(doc, bodyfile, body, OUTPUT_HTML);

  if (framefile)
  {
   /*
    * Get the basename of the frame file...
    */

    if ((basename = strrchr(framefile, '/')) != NULL)
      basename ++;
    else
      basename = framefile;

    if (strstr(basename, ".html"))
      fputs("mxmldoc: Frame base name should not contain .html extension.\n", stderr);

   /*
    * Create the container HTML file for the frames...
    */

    snprintf(filename, sizeof(filename), "%s.html", framefile);

    if ((out = fopen(filename, "w")) == NULL)
    {
      fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
              strerror(errno));
      return;
    }

    fputs("<!doctype html>\n"
          "<html>\n"
          "  <head>\n"
	  "    <title>", out);
    write_string(out, title, OUTPUT_HTML);
    fputs("</title>\n", out);

    if (section)
      fprintf(out, "    <meta name=\"keywords\" content=\"%s\">\n", section);

    fputs("    <meta http-equiv=\"Content-Type\" "
          "content=\"text/html;charset=utf-8\">\n"
          "\t<meta name=\"creator\" content=\"" MXML_VERSION "\">\n"
          "\t<meta name=\"author\" content=\"", out);
    write_string(out, author, OUTPUT_HTML);
    fputs("\">\n"
          "    <meta name=\"copyright\" content=\"", out);
    write_string(out, copyright, OUTPUT_HTML);
    fputs("\">\n"
          "    <meta name=\"version\" content=\"", out);
    write_string(out, docversion, OUTPUT_HTML);
    fputs("\">\n"
          "  </head>\n", out);

    fputs("  <frameset cols=\"250,*\">\n", out);
    fprintf(out, "    <frame src=\"%s-toc.html\">\n", basename);
    fprintf(out, "    <frame name=\"body\" src=\"%s-body.html\">\n", basename);
    fputs("  </frameset>\n"
          "  <noframes>\n"
	  "    <h1>", out);
    write_string(out, title, OUTPUT_HTML);
    fprintf(out,
            "</h1>\n"
            "    <ul>\n"
	    "      <li><a href=\"%s-toc.html\">Table of Contents</a></li>\n"
	    "      <li><a href=\"%s-body.html\">Body</a></li>\n"
	    "    </ul>\n", basename, basename);
    fputs("  </noframes>\n"
          "</html>\n", out);
    fclose(out);

   /*
    * Write the table-of-contents file...
    */

    snprintf(filename, sizeof(filename), "%s-toc.html", framefile);

    if ((out = fopen(filename, "w")) == NULL)
    {
      fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
              strerror(errno));
      return;
    }

    write_html_head(out, OUTPUT_HTML, section, title, author, copyright, docversion, cssfile);

    if (coverimage)
    {
      fputs("<p><img src=\"", out);
      write_string(out, coverimage, OUTPUT_HTML);
      fputs("\" width=\"100%\"></p>\n", out);
    }

    snprintf(filename, sizeof(filename), "%s-body.html", basename);

    write_html_toc(out, title, toc, filename, "body");

    fputs("  </body>\n"
          "</html>\n", out);
    fclose(out);

   /*
    * Finally, open the body file...
    */

    snprintf(filename, sizeof(filename), "%s-body.html", framefile);

    if ((out = fopen(filename, "w")) == NULL)
    {
      fprintf(stderr, "mxmldoc: Unable to create \"%s\": %s\n", filename,
              strerror(errno));
      return;
    }
  }
  else
    out = stdout;

 /*
  * Standard header...
  */

  write_html_head(out, OUTPUT_HTML, section, title, author, copyright, docversion, cssfile);

  if (!framefile && coverimage)
  {
    fputs("<p><img src=\"", out);
    write_string(out, coverimage, OUTPUT_HTML);
    fputs("\" width=\"100%\"></p>\n", out);
  }

 /*
  * Header...
  */

  if (headerfile)
  {
   /*
    * Use custom header...
    */

    write_file(out, headerfile, OUTPUT_HTML);
  }
  else
  {
   /*
    * Use standard header...
    */

    fputs("    <h1 class=\"title\">", out);
    write_string(out, title, OUTPUT_HTML);
    fputs("</h1>\n", out);

    if (author)
    {
      fputs("    <p>", out);
      write_string(out, author, OUTPUT_HTML);
      fputs("</p>\n", out);
    }

    if (copyright)
    {
      fputs("    <p>", out);
      write_string(out, copyright, OUTPUT_HTML);
      fputs("</p>\n", out);
    }
  }

 /*
  * Table of contents...
  */

  if (!framefile)
    write_html_toc(out, title, toc, NULL, NULL);

  free_toc(toc);

 /*
  * Body...
  */

  fputs("    <div class=\"body\">\n", out);

  write_html_body(out, OUTPUT_HTML, bodyfile, body, doc);

 /*
  * Footer...
  */

  if (footerfile)
  {
   /*
    * Use custom footer...
    */

    write_file(out, footerfile, OUTPUT_HTML);
  }

  fputs("    </div>\n"
        "  </body>\n"
        "</html>\n", out);

 /*
  * Close output file as needed...
  */

  if (out != stdout)
    fclose(out);
}


/*
 * 'write_html_body()' - Write a HTML/XHTML body.
 */

static void
write_html_body(
    FILE        *out,			/* I - Output file */
    int         mode,			/* I - HTML or EPUB/XHTML output */
    const char  *bodyfile,		/* I - Body file */
    mmd_t       *body,			/* I - Markdown body */
    mxml_node_t *doc)			/* I - XML documentation */
{
  mxml_node_t	*function,		/* Current function */
		*scut,			/* Struct/class/union/typedef */
		*arg,			/* Current argument */
		*description,		/* Description of function/var */
		*type;			/* Type for argument */
  const char	*name,			/* Name of function/type */
		*defval;		/* Default value */


 /*
  * Body...
  */

  if (body)
    markdown_write_block(out, body, mode);
  else if (bodyfile)
    write_file(out, bodyfile, mode);

 /*
  * List of classes...
  */

  if ((scut = find_public(doc, doc, "class", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"CLASSES\">Classes</a></h2>\n", out);

    while (scut)
    {
      write_scu(out, mode, doc, scut);

      scut = find_public(scut, doc, "class", NULL, mode);
    }
  }

 /*
  * List of functions...
  */

  if ((function = find_public(doc, doc, "function", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"FUNCTIONS\">Functions</a></h2>\n", out);

    while (function)
    {
      write_function(out, mode, doc, function, 3);

      function = find_public(function, doc, "function", NULL, mode);
    }
  }

 /*
  * List of types...
  */

  if ((scut = find_public(doc, doc, "typedef", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"TYPES\">Data Types</a></h2>\n", out);

    while (scut)
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      fprintf(out, "      <h3 class=\"typedef\"><a id=\"%s\">%s%s</a></h3>\n", name, get_comment_info(description), name);

      if (description)
	write_description(out, mode, description, "p", 1);

      fputs("      <p class=\"code\">\n"
	    "typedef ", out);

      type = mxmlFindElement(scut, scut, "type", NULL, NULL, MXML_DESCEND_FIRST);

      for (type = type->child; type; type = type->next)
        if (!strcmp(type->value.text.string, "("))
	  break;
	else
	{
	  if (type->value.text.whitespace)
	    putc(' ', out);

	  if (find_public(doc, doc, "class", type->value.text.string, mode) ||
	      find_public(doc, doc, "enumeration", type->value.text.string, mode) ||
	      find_public(doc, doc, "struct", type->value.text.string, mode) ||
	      find_public(doc, doc, "typedef", type->value.text.string, mode) ||
	      find_public(doc, doc, "union", type->value.text.string, mode))
	  {
            fputs("<a href=\"#", out);
            write_string(out, type->value.text.string, OUTPUT_HTML);
	    fputs("\">", out);
            write_string(out, type->value.text.string, OUTPUT_HTML);
	    fputs("</a>", out);
	  }
	  else
            write_string(out, type->value.text.string, OUTPUT_HTML);
        }

      if (type)
      {
       /*
        * Output function type...
	*/

        if (type->prev && type->prev->value.text.string[0] != '*')
	  putc(' ', out);

        fprintf(out, "(*%s", name);

	for (type = type->next->next; type; type = type->next)
	{
	  if (type->value.text.whitespace)
	    putc(' ', out);

	  if (find_public(doc, doc, "class", type->value.text.string, mode) ||
	      find_public(doc, doc, "enumeration", type->value.text.string, mode) ||
	      find_public(doc, doc, "struct", type->value.text.string, mode) ||
	      find_public(doc, doc, "typedef", type->value.text.string, mode) ||
	      find_public(doc, doc, "union", type->value.text.string, mode))
	  {
            fputs("<a href=\"#", out);
            write_string(out, type->value.text.string, OUTPUT_HTML);
	    fputs("\">", out);
            write_string(out, type->value.text.string, OUTPUT_HTML);
	    fputs("</a>", out);
	  }
	  else
            write_string(out, type->value.text.string, OUTPUT_HTML);
        }

        fputs(";\n", out);
      }
      else
      {
	type = mxmlFindElement(scut, scut, "type", NULL, NULL,
			       MXML_DESCEND_FIRST);
        if (type->last_child->value.text.string[0] != '*')
	  putc(' ', out);

	fprintf(out, "%s;\n", name);
      }

      fputs("</p>\n", out);

      scut = find_public(scut, doc, "typedef", NULL, mode);
    }
  }

 /*
  * List of structures...
  */

  if ((scut = find_public(doc, doc, "struct", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"STRUCTURES\">Structures</a></h2>\n", out);

    while (scut)
    {
      write_scu(out, mode, doc, scut);

      scut = find_public(scut, doc, "struct", NULL, mode);
    }
  }

 /*
  * List of unions...
  */

  if ((scut = find_public(doc, doc, "union", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"UNIONS\">Unions</a></h2>\n", out);

    while (scut)
    {
      write_scu(out, mode, doc, scut);

      scut = find_public(scut, doc, "union", NULL, mode);
    }
  }

 /*
  * Variables...
  */

  if ((arg = find_public(doc, doc, "variable", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"VARIABLES\">Variables</a></h2>\n", out);

    while (arg)
    {
      name        = mxmlElementGetAttr(arg, "name");
      description = mxmlFindElement(arg, arg, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      fprintf(out, "      <h3 class=\"variable\"><a id=\"%s\">%s%s</a></h3>\n", name, get_comment_info(description), name);

      if (description)
	write_description(out, mode, description, "p", 1);

      fputs("      <p class=\"code\">", out);

      write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL, NULL, MXML_DESCEND_FIRST), OUTPUT_HTML);
      fputs(mxmlElementGetAttr(arg, "name"), out);
      if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	fprintf(out, " %s", defval);
      fputs(";</p>\n", out);

      arg = find_public(arg, doc, "variable", NULL, mode);
    }
  }

 /*
  * List of enumerations...
  */

  if ((scut = find_public(doc, doc, "enumeration", NULL, mode)) != NULL)
  {
    fputs("      <h2 class=\"title\"><a id=\"ENUMERATIONS\">Constants</a></h2>\n", out);

    while (scut)
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      fprintf(out, "      <h3 class=\"enumeration\"><a id=\"%s\">%s%s</a></h3>\n", name, get_comment_info(description), name);

      if (description)
	write_description(out, mode, description, "p", 1);

      fputs("      <h4 class=\"constants\">Constants</h4>\n"
            "      <table class=\"list\"><tbody>\n", out);

      for (arg = find_public(scut, scut, "constant", NULL, mode);
	   arg;
	   arg = find_public(arg, scut, "constant", NULL, mode))
      {
	description = mxmlFindElement(arg, arg, "description", NULL,
                                      NULL, MXML_DESCEND_FIRST);
	fprintf(out, "        <tr><th>%s %s</th>",
	        mxmlElementGetAttr(arg, "name"), get_comment_info(description));

	write_description(out, mode, description, "td", -1);
        fputs("</tr>\n", out);
      }

      fputs("</tbody></table>\n", out);

      scut = find_public(scut, doc, "enumeration", NULL, mode);
    }
  }
}


/*
 * 'write_html_head()' - Write the standard HTML header.
 */

static void
write_html_head(FILE       *out,	/* I - Output file */
                int        mode,	/* I - HTML or EPUB/XHTML */
                const char *section,	/* I - Section */
                const char *title,	/* I - Title */
                const char *author,	/* I - Author's name */
                const char *copyright,	/* I - Copyright string */
                const char *docversion,	/* I - Document version string */
		const char *cssfile)	/* I - Stylesheet */
{
  if (mode == OUTPUT_EPUB)
    fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
          "<!DOCTYPE html>\n"
          "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" "
          "lang=\"en\">\n", out);
  else
    fputs("<!doctype html>\n"
          "<html>\n", out);

  if (section)
    fprintf(out, "<!-- SECTION: %s -->\n", section);

  fputs("  <head>\n"
        "    <title>", out);
  write_string(out, title, mode);
  fputs("</title>\n", out);

  if (mode == OUTPUT_EPUB)
  {
    if (section)
      fprintf(out, "    <meta name=\"keywords\" content=\"%s\" />\n", section);

    fputs("    <meta name=\"creator\" content=\"" MXML_VERSION "\" />\n"
          "    <meta name=\"author\" content=\"", out);
    write_string(out, author, mode);
    fputs("\" />\n"
          "    <meta name=\"copyright\" content=\"", out);
    write_string(out, copyright, mode);
    fputs("\" />\n"
          "    <meta name=\"version\" content=\"", out);
    write_string(out, docversion, mode);
    fputs("\" />\n"
          "    <style type=\"text/css\"><![CDATA[\n", out);
  }
  else
  {
    if (section)
      fprintf(out, "    <meta name=\"keywords\" content=\"%s\">\n", section);

    fputs("    <meta http-equiv=\"Content-Type\" "
          "content=\"text/html;charset=utf-8\">\n"
          "    <meta name=\"creator\" content=\"" MXML_VERSION "\">\n"
          "    <meta name=\"author\" content=\"", out);
    write_string(out, author, mode);
    fputs("\">\n"
          "    <meta name=\"copyright\" content=\"", out);
    write_string(out, copyright, mode);
    fputs("\">\n"
          "    <meta name=\"version\" content=\"", out);
    write_string(out, docversion, mode);
    fputs("\">\n"
          "    <style type=\"text/css\"><!--\n", out);
  }

  if (cssfile)
  {
   /*
    * Use custom stylesheet file...
    */

    write_file(out, cssfile, mode);
  }
  else
  {
   /*
    * Use standard stylesheet...
    */

    fputs("body, p, h1, h2, h3, h4 {\n"
	  "  font-family: sans-serif;\n"
	  "}\n"
	  "div.body h1 {\n"
	  "  font-size: 250%;\n"
	  "  font-weight: bold;\n"
	  "  margin: 0;\n"
	  "}\n"
	  "div.body h2 {\n"
	  "  font-size: 250%;\n"
	  "  margin-top: 1.5em;\n"
	  "}\n"
	  "div.body h3 {\n"
	  "  font-size: 150%;\n"
	  "  margin-bottom: 0.5em;\n"
	  "  margin-top: 1.5em;\n"
	  "}\n"
	  "div.body h4 {\n"
	  "  font-size: 110%;\n"
	  "  margin-bottom: 0.5em;\n"
	  "  margin-top: 1.5em;\n"
	  "}\n"
	  "div.body h5 {\n"
	  "  font-size: 100%;\n"
	  "  margin-bottom: 0.5em;\n"
	  "  margin-top: 1.5em;\n"
	  "}\n"
	  "div.contents {\n"
	  "  background: #e8e8e8;\n"
	  "  border: solid thin black;\n"
	  "  padding: 10px;\n"
	  "}\n"
	  "div.contents h1 {\n"
	  "  font-size: 110%;\n"
	  "}\n"
	  "div.contents h2 {\n"
	  "  font-size: 100%;\n"
	  "}\n"
	  "div.contents ul.contents {\n"
	  "  font-size: 80%;\n"
	  "}\n"
	  ".class {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "}\n"
	  ".constants {\n"
	  "}\n"
	  ".description {\n"
	  "  margin-top: 0.5em;\n"
	  "}\n"
	  ".discussion {\n"
	  "}\n"
	  ".enumeration {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "}\n"
	  ".function {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "  margin-bottom: 0;\n"
	  "}\n"
	  ".members {\n"
	  "}\n"
	  ".method {\n"
	  "}\n"
	  ".parameters {\n"
	  "}\n"
	  ".returnvalue {\n"
	  "}\n"
	  ".struct {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "}\n"
	  ".typedef {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "}\n"
	  ".union {\n"
	  "  border-bottom: solid 2px gray;\n"
	  "}\n"
	  ".variable {\n"
	  "}\n"
	  "h1, h2, h3, h4, h5, h6 {\n"
	  "  page-break-inside: avoid;\n"
	  "}\n"
	  "blockquote {\n"
	  "  border: solid thin gray;\n"
	  "  box-shadow: 3px 3px 5px rgba(0,0,0,0.5);\n"
	  "  padding: 0px 10px;\n"
	  "  page-break-inside: avoid;\n"
          "}\n"
	  "p code, li code, p.code, pre, ul.code li {\n"
          "  background: rgba(127,127,127,0.1);\n"
          "  border: thin dotted gray;\n"
	  "  font-family: monospace;\n"
	  "  font-size: 90%;\n"
	  "  hyphens: manual;\n"
	  "  -webkit-hyphens: manual;\n"
	  "  page-break-inside: avoid;\n"
	  "}\n"
	  "p.code, pre, ul.code li {\n"
          "  padding: 10px;\n"
	  "}\n"
	  "p code, li code {\n"
          "  padding: 2px 5px;\n"
	  "}\n"
	  "a:link, a:visited {\n"
	  "  text-decoration: none;\n"
	  "}\n"
	  "span.info {\n"
	  "  background: black;\n"
	  "  border: solid thin black;\n"
	  "  color: white;\n"
	  "  font-size: 80%;\n"
	  "  font-style: italic;\n"
	  "  font-weight: bold;\n"
	  "  white-space: nowrap;\n"
	  "}\n"
	  "h3 span.info, h4 span.info {\n"
	  "  border-top-left-radius: 10px;\n"
	  "  border-top-right-radius: 10px;\n"
	  "  float: right;\n"
	  "  padding: 3px 6px;\n"
	  "}\n"
	  "ul.code, ul.contents, ul.subcontents {\n"
	  "  list-style-type: none;\n"
	  "  margin: 0;\n"
	  "  padding-left: 0;\n"
	  "}\n"
	  "ul.code li {\n"
	  "  margin: 0;\n"
	  "}\n"
	  "ul.contents > li {\n"
	  "  margin-top: 1em;\n"
	  "}\n"
	  "ul.contents li ul.code, ul.contents li ul.subcontents {\n"
	  "  padding-left: 2em;\n"
	  "}\n"
	  "table.list {\n"
	  "  border-collapse: collapse;\n"
	  "  width: 100%;\n"
	  "}\n"
	  "table.list tr:nth-child(even) {\n"
	  "  background: rgba(127,127,127,0.1);]n"
	  "}\n"
	  "table.list th {\n"
	  "  border-right: 2px solid gray;\n"
	  "  font-family: monospace;\n"
	  "  padding: 5px 10px 5px 2px;\n"
	  "  text-align: right;\n"
	  "  vertical-align: top;\n"
	  "}\n"
	  "table.list td {\n"
	  "  padding: 5px 2px 5px 10px;\n"
	  "  text-align: left;\n"
	  "  vertical-align: top;\n"
	  "}\n"
	  "h1.title {\n"
	  "}\n"
	  "h2.title {\n"
	  "  border-bottom: solid 2px black;\n"
	  "}\n"
	  "h3.title {\n"
	  "  border-bottom: solid 2px black;\n"
	  "}\n", out);
  }

  if (mode == OUTPUT_EPUB)
    fputs("]]></style>\n"
          "  </head>\n"
          "  <body>\n", out);
  else
    fputs("--></style>\n"
          "  </head>\n"
          "  <body>\n", out);
}


/*
 * 'write_html_toc()' - Write a HTML table-of-contents.
 */

static void
write_html_toc(FILE        *out,	/* I - Output file */
               const char  *title,	/* I - Title */
               toc_t       *toc,	/* I - Table of contents */
               const char  *filename,	/* I - Target filename, if any */
	       const char  *target)	/* I - Target frame name, if any */
{
  size_t	i;			/* Looping var */
  toc_entry_t	*tentry;		/* Current table of contents */
  int		toc_level;		/* Current table-of-contents level */
  char		targetattr[1024];	/* Target attribute, if any */


 /*
  * If target is set, it is the frame file that contains the body.
  * Otherwise, we are creating a single-file...
  */

  if (target)
    snprintf(targetattr, sizeof(targetattr), " target=\"%s\"", target);
  else
    targetattr[0] = '\0';

  fputs("    <div class=\"contents\">\n", out);

  if (filename)
  {
    fprintf(out, "      <h1 class=\"title\"><a href=\"%s\"%s>", filename, targetattr);
    write_string(out, title, OUTPUT_HTML);
    fputs("</a></h1>\n", out);
  }

  fputs("      <h2 class=\"title\">Contents</h2>\n"
        "      <ul class=\"contents\">\n", out);

  for (i = 0, tentry = toc->entries, toc_level = 1; i < toc->num_entries; i ++, tentry ++)
  {
    if (tentry->level > toc_level)
    {
      toc_level = tentry->level;
    }
    else if (tentry->level < toc_level)
    {
      fputs("        </ul></li>\n", out);
      toc_level = tentry->level;
    }

    fprintf(out, "        %s<li><a href=\"%s#%s\"%s>", toc_level == 1 ? "" : "  ", filename ? filename : "", tentry->anchor, targetattr);
    write_string(out, tentry->title, OUTPUT_HTML);

    if ((i + 1) < toc->num_entries && tentry[1].level > toc_level)
      fputs("</a><ul class=\"subcontents\">\n", out);
    else
      fputs("</a></li>\n", out);
  }

  if (toc_level == 2)
    fputs("        </ul></li>\n", out);

  fputs("      </ul>\n"
        "    </div>\n", out);
}


/*
 * 'write_man()' - Write manpage documentation.
 */

static void
write_man(const char  *man_name,	/* I - Name of manpage */
	  const char  *section,		/* I - Section */
	  const char  *title,		/* I - Title */
          const char  *author,		/* I - Author's name */
          const char  *copyright,	/* I - Copyright string */
	  const char  *headerfile,	/* I - Header file */
	  const char  *bodyfile,	/* I - Body file */
          mmd_t       *body,		/* I - Markdown body */
	  mxml_node_t *doc,		/* I - XML documentation */
	  const char  *footerfile)	/* I - Footer file */
{
  int		i;			/* Looping var */
  mxml_node_t	*function,		/* Current function */
		*scut,			/* Struct/class/union/typedef */
		*arg,			/* Current argument */
		*description,		/* Description of function/var */
		*type;			/* Type for argument */
  const char	*name,			/* Name of function/type */
		*cname,			/* Class name */
		*defval,		/* Default value */
		*parent;		/* Parent class */
  int		inscope;		/* Variable/method scope */
  char		prefix;			/* Prefix character */
  const char	*source_date_epoch;	/* SOURCE_DATE_EPOCH environment variable */
  time_t	curtime;		/* Current time */
  struct tm	*curdate;		/* Current date */
  char		buffer[1024];		/* String buffer */
  static const char * const scopes[] =	/* Scope strings */
		{
		  "private",
		  "protected",
		  "public"
		};


 /*
  * Standard man page...
  *
  * Get the current date, using the SOURCE_DATE_EPOCH environment variable, if
  * present, for the number of seconds since the epoch - this enables
  * reproducible builds (Issue #193).
  */

  if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")) == NULL || (curtime = (time_t)strtol(source_date_epoch, NULL, 10)) <= 0)
    curtime = time(NULL);

  curdate = localtime(&curtime);
  strftime(buffer, sizeof(buffer), "%x", curdate);

  printf(".TH %s %s \"%s\" \"%s\" \"%s\"\n", man_name, section ? section : "3",
         title ? title : "", buffer, title ? title : "");

 /*
  * Header...
  */

  if (headerfile)
  {
   /*
    * Use custom header...
    */

    write_file(stdout, headerfile, OUTPUT_MAN);
  }
  else
  {
   /*
    * Use standard header...
    */

    puts(".SH NAME");
    printf("%s \\- %s\n", man_name, title ? title : man_name);
  }

 /*
  * Body...
  */

  if (body)
    markdown_write_block(stdout, body, OUTPUT_MAN);
  else if (bodyfile)
    write_file(stdout, bodyfile, OUTPUT_MAN);

 /*
  * List of classes...
  */

  if (find_public(doc, doc, "class", NULL, OUTPUT_MAN))
  {
    puts(".SH CLASSES");

    for (scut = find_public(doc, doc, "class", NULL, OUTPUT_MAN);
	 scut;
	 scut = find_public(scut, doc, "class", NULL, OUTPUT_MAN))
    {
      cname       = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", cname);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      printf(".PP\n"
             ".nf\n"
             "class %s", cname);
      if ((parent = mxmlElementGetAttr(scut, "parent")) != NULL)
        printf(" %s", parent);
      puts("\n{");

      for (i = 0; i < 3; i ++)
      {
        inscope = 0;

	for (arg = mxmlFindElement(scut, scut, "variable", "scope", scopes[i],
                        	   MXML_DESCEND_FIRST);
	     arg;
	     arg = mxmlFindElement(arg, scut, "variable", "scope", scopes[i],
                        	   MXML_NO_DESCEND))
	{
          if (!inscope)
	  {
	    inscope = 1;
	    printf("  %s:\n", scopes[i]);
	  }

	  printf("    ");
	  write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                     NULL, MXML_DESCEND_FIRST),
                        OUTPUT_MAN);
	  printf("%s;\n", mxmlElementGetAttr(arg, "name"));
	}

	for (function = mxmlFindElement(scut, scut, "function", "scope",
	                                scopes[i], MXML_DESCEND_FIRST);
	     function;
	     function = mxmlFindElement(function, scut, "function", "scope",
	                                scopes[i], MXML_NO_DESCEND))
	{
          if (!inscope)
	  {
	    inscope = 1;
	    printf("  %s:\n", scopes[i]);
	  }

          name = mxmlElementGetAttr(function, "name");

          printf("    ");

	  arg = mxmlFindElement(function, function, "returnvalue", NULL,
                        	NULL, MXML_DESCEND_FIRST);

	  if (arg)
	    write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                       NULL, MXML_DESCEND_FIRST),
                          OUTPUT_MAN);
	  else if (strcmp(cname, name) && strcmp(cname, name + 1))
	    fputs("void ", stdout);

	  printf("%s", name);

	  for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
                        	     MXML_DESCEND_FIRST), prefix = '(';
	       arg;
	       arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
                        	     MXML_NO_DESCEND), prefix = ',')
	  {
	    type = mxmlFindElement(arg, arg, "type", NULL, NULL,
	                	   MXML_DESCEND_FIRST);

	    putchar(prefix);
	    if (prefix == ',')
	      putchar(' ');

	    if (type->child)
	      write_element(stdout, doc, type, OUTPUT_MAN);
	    fputs(mxmlElementGetAttr(arg, "name"), stdout);
            if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	      printf(" %s", defval);
	  }

	  if (prefix == '(')
	    puts("(void);");
	  else
	    puts(");");
	}
      }

      puts("};\n"
           ".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

 /*
  * List of enumerations...
  */

  if (find_public(doc, doc, "enumeration", NULL, OUTPUT_MAN))
  {
    puts(".SH ENUMERATIONS");

    for (scut = find_public(doc, doc, "enumeration", NULL, OUTPUT_MAN);
	 scut;
	 scut = find_public(scut, doc, "enumeration", NULL, OUTPUT_MAN))
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", name);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);
      write_description(stdout, OUTPUT_MAN, description, NULL, 0);

      for (arg = mxmlFindElement(scut, scut, "constant", NULL, NULL,
                        	 MXML_DESCEND_FIRST);
	   arg;
	   arg = mxmlFindElement(arg, scut, "constant", NULL, NULL,
                        	 MXML_NO_DESCEND))
      {
	description = mxmlFindElement(arg, arg, "description", NULL,
                                      NULL, MXML_DESCEND_FIRST);
	printf(".TP 5\n%s\n.br\n", mxmlElementGetAttr(arg, "name"));
	write_description(stdout, OUTPUT_MAN, description, NULL, 1);
      }
    }
  }

 /*
  * List of functions...
  */

  if (find_public(doc, doc, "function", NULL, OUTPUT_MAN))
  {
    puts(".SH FUNCTIONS");

    for (function = find_public(doc, doc, "function", NULL, OUTPUT_MAN);
	 function;
	 function = find_public(function, doc, "function", NULL, OUTPUT_MAN))
    {
      name        = mxmlElementGetAttr(function, "name");
      description = mxmlFindElement(function, function, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", name);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      puts(".PP\n"
           ".nf");

      arg = mxmlFindElement(function, function, "returnvalue", NULL,
                            NULL, MXML_DESCEND_FIRST);

      if (arg)
	write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                   NULL, MXML_DESCEND_FIRST),
                      OUTPUT_MAN);
      else
	fputs("void", stdout);

      printf(" %s ", name);
      for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
                        	 MXML_DESCEND_FIRST), prefix = '(';
	   arg;
	   arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
                        	 MXML_NO_DESCEND), prefix = ',')
      {
        type = mxmlFindElement(arg, arg, "type", NULL, NULL,
	                       MXML_DESCEND_FIRST);

	printf("%c\n    ", prefix);
	if (type->child)
	  write_element(stdout, doc, type, OUTPUT_MAN);
	fputs(mxmlElementGetAttr(arg, "name"), stdout);
        if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	  printf(" %s", defval);
      }

      if (prefix == '(')
	puts("(void);");
      else
	puts("\n);");

      puts(".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

 /*
  * List of structures...
  */

  if (find_public(doc, doc, "struct", NULL, OUTPUT_MAN))
  {
    puts(".SH STRUCTURES");

    for (scut = find_public(doc, doc, "struct", NULL, OUTPUT_MAN);
	 scut;
	 scut = find_public(scut, doc, "struct", NULL, OUTPUT_MAN))
    {
      cname       = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", cname);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      printf(".PP\n"
             ".nf\n"
	     "struct %s\n{\n", cname);
      for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL,
                        	 MXML_DESCEND_FIRST);
	   arg;
	   arg = mxmlFindElement(arg, scut, "variable", NULL, NULL,
                        	 MXML_NO_DESCEND))
      {
	printf("  ");
	write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                   NULL, MXML_DESCEND_FIRST),
                      OUTPUT_MAN);
	printf("%s;\n", mxmlElementGetAttr(arg, "name"));
      }

      for (function = mxmlFindElement(scut, scut, "function", NULL, NULL,
                                      MXML_DESCEND_FIRST);
	   function;
	   function = mxmlFindElement(function, scut, "function", NULL, NULL,
                                      MXML_NO_DESCEND))
      {
        name = mxmlElementGetAttr(function, "name");

        printf("  ");

	arg = mxmlFindElement(function, function, "returnvalue", NULL,
                              NULL, MXML_DESCEND_FIRST);

	if (arg)
	  write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                     NULL, MXML_DESCEND_FIRST),
                        OUTPUT_MAN);
	else if (strcmp(cname, name) && strcmp(cname, name + 1))
	  fputs("void ", stdout);

	fputs(name, stdout);

	for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
                        	   MXML_DESCEND_FIRST), prefix = '(';
	     arg;
	     arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
                        	   MXML_NO_DESCEND), prefix = ',')
	{
	  type = mxmlFindElement(arg, arg, "type", NULL, NULL,
	                	 MXML_DESCEND_FIRST);

	  putchar(prefix);
	  if (prefix == ',')
	    putchar(' ');

	  if (type->child)
	    write_element(stdout, doc, type, OUTPUT_MAN);
	  fputs(mxmlElementGetAttr(arg, "name"), stdout);
          if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	    printf(" %s", defval);
	}

	if (prefix == '(')
	  puts("(void);");
	else
	  puts(");");
      }

      puts("};\n"
           ".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

 /*
  * List of types...
  */

  if (find_public(doc, doc, "typedef", NULL, OUTPUT_MAN))
  {
    puts(".SH TYPES");

    for (scut = find_public(doc, doc, "typedef", NULL, OUTPUT_MAN);
	 scut;
	 scut = find_public(scut, doc, "typedef", NULL, OUTPUT_MAN))
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", name);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      fputs(".PP\n"
            ".nf\n"
	    "typedef ", stdout);

      type = mxmlFindElement(scut, scut, "type", NULL, NULL,
                             MXML_DESCEND_FIRST);

      for (type = type->child; type; type = type->next)
        if (!strcmp(type->value.text.string, "("))
	  break;
	else
	{
	  if (type->value.text.whitespace)
	    putchar(' ');

          write_string(stdout, type->value.text.string, OUTPUT_MAN);
        }

      if (type)
      {
       /*
        * Output function type...
	*/

        printf(" (*%s", name);

	for (type = type->next->next; type; type = type->next)
	{
	  if (type->value.text.whitespace)
	    putchar(' ');

          write_string(stdout, type->value.text.string, OUTPUT_MAN);
        }

        puts(";");
      }
      else
	printf(" %s;\n", name);

      puts(".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

 /*
  * List of unions...
  */

  if (find_public(doc, doc, "union", NULL, OUTPUT_MAN))
  {
    puts(".SH UNIONS");

    for (scut = find_public(doc, doc, "union", NULL, OUTPUT_MAN);
	 scut;
	 scut = find_public(scut, doc, "union", NULL, OUTPUT_MAN))
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", name);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      printf(".PP\n"
             ".nf\n"
	     "union %s\n{\n", name);
      for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL,
                        	 MXML_DESCEND_FIRST);
	   arg;
	   arg = mxmlFindElement(arg, scut, "variable", NULL, NULL,
                        	 MXML_NO_DESCEND))
      {
	printf("  ");
	write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                   NULL, MXML_DESCEND_FIRST),
                      OUTPUT_MAN);
	printf("%s;\n", mxmlElementGetAttr(arg, "name"));
      }

      puts("};\n"
           ".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

 /*
  * Variables...
  */

  if (find_public(doc, doc, "variable", NULL, OUTPUT_MAN))
  {
    puts(".SH VARIABLES");

    for (arg = find_public(doc, doc, "variable", NULL, OUTPUT_MAN);
	 arg;
	 arg = find_public(arg, doc, "variable", NULL, OUTPUT_MAN))
    {
      name        = mxmlElementGetAttr(arg, "name");
      description = mxmlFindElement(arg, arg, "description", NULL,
                                    NULL, MXML_DESCEND_FIRST);
      printf(".SS %s\n", name);

      write_description(stdout, OUTPUT_MAN, description, NULL, 1);

      puts(".PP\n"
           ".nf");

      write_element(stdout, doc, mxmlFindElement(arg, arg, "type", NULL,
                                                 NULL, MXML_DESCEND_FIRST),
                    OUTPUT_MAN);
      fputs(mxmlElementGetAttr(arg, "name"), stdout);
      if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	printf(" %s", defval);
      puts(";\n"
           ".fi");

      write_description(stdout, OUTPUT_MAN, description, NULL, 0);
    }
  }

  if (footerfile)
  {
   /*
    * Use custom footer...
    */

    write_file(stdout, footerfile, OUTPUT_MAN);
  }
  else
  {
   /*
    * Use standard footer...
    */

    puts(".SH AUTHOR");
    puts(".PP");
    puts(author);

    puts(".SH COPYRIGHT");
    puts(".PP");
    puts(copyright);
  }
}


/*
 * 'write_scu()' - Write a structure, class, or union.
 */

static void
write_scu(FILE        *out,	/* I - Output file */
          int         mode,	/* I - Output mode */
          mxml_node_t *doc,	/* I - Document */
          mxml_node_t *scut)	/* I - Structure, class, or union */
{
  int		i;			/* Looping var */
  mxml_node_t	*function,		/* Current function */
		*arg,			/* Current argument */
		*description,		/* Description of function/var */
		*type;			/* Type for argument */
  const char	*name,			/* Name of function/type */
		*cname,			/* Class name */
		*defval,		/* Default value */
		*parent,		/* Parent class */
		*scope;			/* Scope for variable/function */
  int		inscope,		/* Variable/method scope */
		maxscope;		/* Maximum scope */
  char		prefix;			/* Prefix character */
  const char	*br = mode == OUTPUT_EPUB ? "<br />" : "<br>";
					/* Break sequence */
  static const char * const scopes[] =	/* Scope strings */
		{
		  "private",
		  "protected",
		  "public"
		};


  cname       = mxmlElementGetAttr(scut, "name");
  description = mxmlFindElement(scut, scut, "description", NULL,
				NULL, MXML_DESCEND_FIRST);

  fprintf(out, "<h3 class=\"%s\">%s<a id=\"%s\">%s</a></h3>\n", scut->value.element.name, get_comment_info(description), cname, cname);

  if (description)
    write_description(out, mode, description, "p", 1);

  fprintf(out, "<p class=\"code\">%s %s", scut->value.element.name, cname);
  if ((parent = mxmlElementGetAttr(scut, "parent")) != NULL)
    fprintf(out, " %s", parent);
  fprintf(out, " {%s\n", br);

  maxscope = !strcmp(scut->value.element.name, "class") ? 3 : 1;

  for (i = 0; i < maxscope; i ++)
  {
    inscope = maxscope == 1;

    for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL,
			       MXML_DESCEND_FIRST);
	 arg;
	 arg = mxmlFindElement(arg, scut, "variable", NULL, NULL,
			       MXML_NO_DESCEND))
    {
      if (maxscope > 1 &&
          ((scope = mxmlElementGetAttr(arg, "scope")) == NULL ||
	   strcmp(scope, scopes[i])))
	continue;

      if (!inscope)
      {
	inscope = 1;
	fprintf(out, "&#160;&#160;%s:<br>\n", scopes[i]);
      }

      fputs("&#160;&#160;&#160;&#160;", out);
      write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL,
					      NULL, MXML_DESCEND_FIRST),
		    OUTPUT_HTML);
      fprintf(out, "%s;%s\n", mxmlElementGetAttr(arg, "name"), br);
    }

    for (function = mxmlFindElement(scut, scut, "function", NULL, NULL,
                                    MXML_DESCEND_FIRST);
	 function;
	 function = mxmlFindElement(function, scut, "function", NULL, NULL,
	                            MXML_NO_DESCEND))
    {
      if (maxscope > 1 &&
          ((scope = mxmlElementGetAttr(arg, "scope")) == NULL ||
	   strcmp(scope, scopes[i])))
	continue;

      if (!inscope)
      {
	inscope = 1;
        fprintf(out, "&#160;&#160;%s:%s\n", scopes[i], br);
      }

      name = mxmlElementGetAttr(function, "name");

      fputs("&#160;&#160;&#160;&#160;", out);

      arg = mxmlFindElement(function, function, "returnvalue", NULL,
			    NULL, MXML_DESCEND_FIRST);

      if (arg)
	write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL,
						NULL, MXML_DESCEND_FIRST),
		      OUTPUT_HTML);
      else if (strcmp(cname, name) && strcmp(cname, name + 1))
	fputs("void ", out);

      fprintf(out, "<a href=\"#%s.%s\">%s</a>", cname, name, name);

      for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
				 MXML_DESCEND_FIRST), prefix = '(';
	   arg;
	   arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
				 MXML_NO_DESCEND), prefix = ',')
      {
	type = mxmlFindElement(arg, arg, "type", NULL, NULL,
			       MXML_DESCEND_FIRST);

	putc(prefix, out);
	if (prefix == ',')
	  putc(' ', out);

	if (type->child)
	  write_element(out, doc, type, OUTPUT_HTML);

	fputs(mxmlElementGetAttr(arg, "name"), out);
	if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	  fprintf(out, " %s", defval);
      }

      if (prefix == '(')
	fprintf(out, "(void);%s\n", br);
      else
	fprintf(out, ");%s\n", br);
    }
  }

  fputs("};</p>\n"
	"<h4 class=\"members\">Members</h4>\n"
	"<table class=\"list\"><tbody>\n", out);

  for (arg = mxmlFindElement(scut, scut, "variable", NULL, NULL,
			     MXML_DESCEND_FIRST);
       arg;
       arg = mxmlFindElement(arg, scut, "variable", NULL, NULL,
			     MXML_NO_DESCEND))
  {
    description = mxmlFindElement(arg, arg, "description", NULL,
				  NULL, MXML_DESCEND_FIRST);

    fprintf(out, "<tr><th>%s %s</th>\n",
	    mxmlElementGetAttr(arg, "name"), get_comment_info(description));

    write_description(out, mode, description, "td", -1);
    fputs("</tr>\n", out);
  }

  fputs("</tbody></table>\n", out);

  for (function = mxmlFindElement(scut, scut, "function", NULL, NULL,
				  MXML_DESCEND_FIRST);
       function;
       function = mxmlFindElement(function, scut, "function", NULL, NULL,
				  MXML_NO_DESCEND))
  {
    write_function(out, mode, doc, function, 4);
  }
}


/*
 * 'write_string()' - Write a string, quoting HTML special chars as needed.
 */

static void
write_string(FILE       *out,		/* I - Output file */
             const char *s,		/* I - String to write */
             int        mode)		/* I - Output mode */
{
  if (!s)
    return;

  switch (mode)
  {
    case OUTPUT_DOCSET :
    case OUTPUT_EPUB :
    case OUTPUT_HTML :
    case OUTPUT_XML :
        while (*s)
        {
          if (*s == '&')
            fputs("&amp;", out);
          else if (*s == '<')
            fputs("&lt;", out);
          else if (*s == '>')
            fputs("&gt;", out);
          else if (*s == '\"')
            fputs("&quot;", out);
          else if (*s & 128)
          {
           /*
            * Convert utf-8 to Unicode constant...
            */

            int	ch;			/* Unicode character */


            ch = *s & 255;

            if ((ch & 0xe0) == 0xc0)
            {
              ch = ((ch & 0x1f) << 6) | (s[1] & 0x3f);
	      s ++;
            }
            else if ((ch & 0xf0) == 0xe0)
            {
              ch = ((((ch * 0x0f) << 6) | (s[1] & 0x3f)) << 6) | (s[2] & 0x3f);
	      s += 2;
            }

            if (ch == 0xa0 && mode != OUTPUT_EPUB)
            {
             /*
              * Handle non-breaking space as-is...
	      */

              fputs("&#160;", out);
            }
            else
              fprintf(out, "&#x%x;", ch);
          }
          else
            putc(*s, out);

          s ++;
        }
        break;

    case OUTPUT_MAN :
        while (*s)
        {
          if (*s == '\\' || *s == '-')
            putc('\\', out);

          putc(*s++, out);
        }
        break;
  }
}


/*
 * 'write_tokens()' - Write <Token> nodes for all APIs.
 */

static void
write_tokens(FILE        *out,		/* I - Output file */
             mxml_node_t *doc,		/* I - Document */
	     const char  *path)		/* I - Path to help file */
{
  mxml_node_t	*function,		/* Current function */
		*scut,			/* Struct/class/union/typedef */
		*arg,			/* Current argument */
		*description,		/* Description of function/var */
		*type,			/* Type node */
		*node;			/* Current child node */
  const char	*name,			/* Name of function/type */
		*cename,		/* Current class/enum name */
		*defval;		/* Default value for argument */
  char		prefix;			/* Prefix for declarations */


 /*
  * Classes...
  */

  if ((scut = find_public(doc, doc, "class", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (scut)
    {
      cename      = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/cpp/cl/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, cename, cename);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      if ((function = find_public(scut, scut, "function", NULL, OUTPUT_TOKENS)) != NULL)
      {
	while (function)
	{
	  name        = mxmlElementGetAttr(function, "name");
	  description = mxmlFindElement(function, function, "description",
					NULL, NULL, MXML_DESCEND_FIRST);

	  fprintf(out, "  <Token>\n"
		       "    <Path>Documentation/%s</Path>\n"
		       "    <Anchor>%s.%s</Anchor>\n"
		       "    <TokenIdentifier>//apple_ref/cpp/clm/%s/%s", path,
		  cename, name, cename, name);

	  arg = mxmlFindElement(function, function, "returnvalue", NULL,
				NULL, MXML_DESCEND_FIRST);

	  if (arg && (type = mxmlFindElement(arg, arg, "type", NULL,
					     NULL, MXML_DESCEND_FIRST)) != NULL)
          {
	    for (node = type->child; node; node = node->next)
	      fputs(node->value.text.string, out);
	  }
	  else if (strcmp(cename, name) && strcmp(cename, name + 1))
	    fputs("void", out);

	  fputs("/", out);

	  for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
				     MXML_DESCEND_FIRST), prefix = '(';
	       arg;
	       arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
				     MXML_NO_DESCEND), prefix = ',')
	  {
	    type = mxmlFindElement(arg, arg, "type", NULL, NULL,
				   MXML_DESCEND_FIRST);

	    putc(prefix, out);

	    for (node = type->child; node; node = node->next)
	      fputs(node->value.text.string, out);

	    fputs(mxmlElementGetAttr(arg, "name"), out);
	  }

	  if (prefix == '(')
	    fputs("(void", out);

	  fputs(")</TokenIdentifier>\n"
	        "    <Abstract>", out);
	  write_description(out, OUTPUT_TOKENS, description, "", 1);
	  fputs("    </Abstract>\n"
		"    <Declaration>", out);

	  arg = mxmlFindElement(function, function, "returnvalue", NULL,
				NULL, MXML_DESCEND_FIRST);

	  if (arg)
	    write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL,
						    NULL, MXML_DESCEND_FIRST),
			  OUTPUT_XML);
	  else if (strcmp(cename, name) && strcmp(cename, name + 1))
	    fputs("void ", out);

	  fputs(name, out);

	  for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
				     MXML_DESCEND_FIRST), prefix = '(';
	       arg;
	       arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
				     MXML_NO_DESCEND), prefix = ',')
	  {
	    type = mxmlFindElement(arg, arg, "type", NULL, NULL,
				   MXML_DESCEND_FIRST);

	    putc(prefix, out);
	    if (prefix == ',')
	      putc(' ', out);

	    if (type->child)
	      write_element(out, doc, type, OUTPUT_XML);

	    fputs(mxmlElementGetAttr(arg, "name"), out);
	    if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	      fprintf(out, " %s", defval);
	  }

	  if (prefix == '(')
	    fputs("(void);", out);
	  else
	    fputs(");", out);

	  fputs("    </Declaration>\n"
		"  </Token>\n", out);

	  function = find_public(function, doc, "function", NULL, OUTPUT_TOKENS);
	}
      }
      scut = find_public(scut, doc, "class", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Functions...
  */

  if ((function = find_public(doc, doc, "function", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (function)
    {
      name        = mxmlElementGetAttr(function, "name");
      description = mxmlFindElement(function, function, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/func/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, name, name);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "    <Declaration>", out);

      arg = mxmlFindElement(function, function, "returnvalue", NULL,
			    NULL, MXML_DESCEND_FIRST);

      if (arg)
	write_element(out, doc, mxmlFindElement(arg, arg, "type", NULL,
						NULL, MXML_DESCEND_FIRST),
		      OUTPUT_XML);
      else // if (strcmp(cname, name) && strcmp(cname, name + 1))
	fputs("void ", out);

      fputs(name, out);

      for (arg = mxmlFindElement(function, function, "argument", NULL, NULL,
				 MXML_DESCEND_FIRST), prefix = '(';
	   arg;
	   arg = mxmlFindElement(arg, function, "argument", NULL, NULL,
				 MXML_NO_DESCEND), prefix = ',')
      {
	type = mxmlFindElement(arg, arg, "type", NULL, NULL,
			       MXML_DESCEND_FIRST);

	putc(prefix, out);
	if (prefix == ',')
	  putc(' ', out);

	if (type->child)
	  write_element(out, doc, type, OUTPUT_XML);

	fputs(mxmlElementGetAttr(arg, "name"), out);
	if ((defval = mxmlElementGetAttr(arg, "default")) != NULL)
	  fprintf(out, " %s", defval);
      }

      if (prefix == '(')
	fputs("(void);", out);
      else
	fputs(");", out);

      fputs("    </Declaration>\n"
            "  </Token>\n", out);

      function = find_public(function, doc, "function", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Data types...
  */

  if ((scut = find_public(doc, doc, "typedef", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (scut)
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/tdef/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, name, name);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      scut = find_public(scut, doc, "typedef", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Structures...
  */

  if ((scut = find_public(doc, doc, "struct", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (scut)
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/tag/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, name, name);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      scut = find_public(scut, doc, "struct", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Unions...
  */

  if ((scut = find_public(doc, doc, "union", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (scut)
    {
      name        = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/tag/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, name, name);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      scut = find_public(scut, doc, "union", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Globals variables...
  */

  if ((arg = find_public(doc, doc, "variable", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (arg)
    {
      name        = mxmlElementGetAttr(arg, "name");
      description = mxmlFindElement(arg, arg, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/data/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, name, name);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      arg = find_public(arg, doc, "variable", NULL, OUTPUT_TOKENS);
    }
  }

 /*
  * Enumerations/constants...
  */

  if ((scut = find_public(doc, doc, "enumeration", NULL, OUTPUT_TOKENS)) != NULL)
  {
    while (scut)
    {
      cename      = mxmlElementGetAttr(scut, "name");
      description = mxmlFindElement(scut, scut, "description",
				    NULL, NULL, MXML_DESCEND_FIRST);

      fprintf(out, "  <Token>\n"
		   "    <Path>Documentation/%s</Path>\n"
		   "    <Anchor>%s</Anchor>\n"
		   "    <TokenIdentifier>//apple_ref/c/tag/%s</TokenIdentifier>\n"
		   "    <Abstract>", path, cename, cename);
      write_description(out, OUTPUT_TOKENS, description, "", 1);
      fputs("    </Abstract>\n"
            "  </Token>\n", out);

      for (arg = mxmlFindElement(scut, scut, "constant", NULL, NULL,
                        	 MXML_DESCEND_FIRST);
	   arg;
	   arg = mxmlFindElement(arg, scut, "constant", NULL, NULL,
                        	 MXML_NO_DESCEND))
      {
        name        = mxmlElementGetAttr(arg, "name");
	description = mxmlFindElement(arg, arg, "description", NULL,
                                      NULL, MXML_DESCEND_FIRST);
	fprintf(out, "  <Token>\n"
		     "    <Path>Documentation/%s</Path>\n"
		     "    <Anchor>%s</Anchor>\n"
		     "    <TokenIdentifier>//apple_ref/c/econst/%s</TokenIdentifier>\n"
		     "    <Abstract>", path, cename, name);
	write_description(out, OUTPUT_TOKENS, description, "", 1);
	fputs("    </Abstract>\n"
	      "  </Token>\n", out);
      }

      scut = find_public(scut, doc, "enumeration", NULL, OUTPUT_TOKENS);
    }
  }
}


/*
 * 'ws_cb()' - Whitespace callback for saving.
 */

static const char *			/* O - Whitespace string or NULL for none */
ws_cb(mxml_node_t *node,		/* I - Element node */
      int         where)		/* I - Where value */
{
  const char *name;			/* Name of element */
  int	depth;				/* Depth of node */
  static const char *spaces = "                                        ";
					/* Whitespace (40 spaces) for indent */


  name = node->value.element.name;

  switch (where)
  {
    case MXML_WS_BEFORE_CLOSE :
        if (strcmp(name, "argument") &&
	    strcmp(name, "class") &&
	    strcmp(name, "constant") &&
	    strcmp(name, "enumeration") &&
	    strcmp(name, "function") &&
	    strcmp(name, "mxmldoc") &&
	    strcmp(name, "namespace") &&
	    strcmp(name, "returnvalue") &&
	    strcmp(name, "struct") &&
	    strcmp(name, "typedef") &&
	    strcmp(name, "union") &&
	    strcmp(name, "variable"))
	  return (NULL);

	for (depth = -4; node; node = node->parent, depth += 2);
	if (depth > 40)
	  return (spaces);
	else if (depth < 2)
	  return (NULL);
	else
	  return (spaces + 40 - depth);

    case MXML_WS_AFTER_CLOSE :
	return ("\n");

    case MXML_WS_BEFORE_OPEN :
	for (depth = -4; node; node = node->parent, depth += 2);
	if (depth > 40)
	  return (spaces);
	else if (depth < 2)
	  return (NULL);
	else
	  return (spaces + 40 - depth);

    default :
    case MXML_WS_AFTER_OPEN :
        if (strcmp(name, "argument") &&
	    strcmp(name, "class") &&
	    strcmp(name, "constant") &&
	    strcmp(name, "enumeration") &&
	    strcmp(name, "function") &&
	    strcmp(name, "mxmldoc") &&
	    strcmp(name, "namespace") &&
	    strcmp(name, "returnvalue") &&
	    strcmp(name, "struct") &&
	    strcmp(name, "typedef") &&
	    strcmp(name, "union") &&
	    strcmp(name, "variable") &&
	    strncmp(name, "?xml", 4))
	  return (NULL);
	else
          return ("\n");
  }
}