Lint fixes.

[mandoc.git] / html.c

diff --git a/html.c b/html.c
index 2885a2237e1f3176ba56e1b6a5138602106ae3b3..8626e91ef850a409550166ffd071fb7a59f1f123 100644 (file)
--- a/html.c
+++ b/html.c
@@ -1,450 +1,680 @@
-/* $Id: html.c,v 1.5 2008/12/04 16:19:52 kristaps Exp $ */
+/*     $Id: html.c,v 1.73 2009/10/30 18:50:11 kristaps Exp $ */

 /*
 /*

- * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>

  *
  * Permission to use, copy, modify, and distribute this software for any
  *
  * Permission to use, copy, modify, and distribute this software for any

- * purpose with or without fee is hereby granted, provided that the
- * above copyright notice and this permission notice appear in all
- * copies.
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.

  *
  *

- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
- * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

  */
  */

-#include <sys/param.h>
-#include <sys/stat.h>
+#include <sys/types.h>

 
 #include <assert.h>
 
 #include <assert.h>

+#include <ctype.h>

 #include <err.h>
 #include <err.h>

-#include <fcntl.h>
-#include <stdlib.h>

 #include <stdio.h>
 #include <stdio.h>

+#include <stdarg.h>
+#include <stdint.h>
+#include <stdlib.h>

 #include <string.h>
 #include <unistd.h>
 
 #include <string.h>
 #include <unistd.h>
 

-#include "libmdocml.h"
-#include "private.h"
-#include "ml.h"
-
-
-static int             html_loadcss(struct md_mbuf *, const char *);
-
-static ssize_t         html_endtag(struct md_mbuf *, 
-                               const struct md_args *, 
-                               enum md_ns, int);
-static ssize_t         html_begintag(struct md_mbuf *, 
-                               const struct md_args *, 
-                               enum md_ns, int, 
-                               const int *, const char **);
-static int             html_begin(struct md_mbuf *,
-                               const struct md_args *, 
-                               const struct tm *, 
-                               const char *, const char *, 
-                               const char *, const char *);
-static int             html_end(struct md_mbuf *, 
-                               const struct md_args *);
-static ssize_t         html_blocktagname(struct md_mbuf *,
-                               const struct md_args *, int);
-static ssize_t         html_blocktagargs(struct md_mbuf *,
-                               const struct md_args *, int,
-                               const int *, const char **);
-static ssize_t         html_blockheadtagname(struct md_mbuf *,
-                               const struct md_args *, int);
-static ssize_t         html_blockheadtagargs(struct md_mbuf *,
-                               const struct md_args *, int,
-                               const int *, const char **);
-static ssize_t         html_blockbodytagname(struct md_mbuf *,
-                               const struct md_args *, int);
-static ssize_t         html_blockbodytagargs(struct md_mbuf *,
-                               const struct md_args *, int,
-                               const int *, const char **);
-static ssize_t         html_inlinetagname(struct md_mbuf *,
-                               const struct md_args *, int);
-static ssize_t         html_inlinetagargs(struct md_mbuf *,
-                               const struct md_args *, int,
-                               const int *, const char **);
-
-
-static int
-html_loadcss(struct md_mbuf *mbuf, const char *css)
+#include "out.h"
+#include "chars.h"
+#include "html.h"
+#include "main.h"
+
+#define        UNCONST(a)      ((void *)(uintptr_t)(const void *)(a))
+
+#define        DOCTYPE         "-//W3C//DTD HTML 4.01//EN"
+#define        DTD             "http://www.w3.org/TR/html4/strict.dtd"
+
+struct htmldata {
+       const char       *name;
+       int               flags;
+#define        HTML_CLRLINE     (1 << 0)
+#define        HTML_NOSTACK     (1 << 1)
+};
+
+static const struct htmldata htmltags[TAG_MAX] = {
+       {"html",        HTML_CLRLINE}, /* TAG_HTML */
+       {"head",        HTML_CLRLINE}, /* TAG_HEAD */
+       {"body",        HTML_CLRLINE}, /* TAG_BODY */
+       {"meta",        HTML_CLRLINE | HTML_NOSTACK}, /* TAG_META */
+       {"title",       HTML_CLRLINE}, /* TAG_TITLE */
+       {"div",         HTML_CLRLINE}, /* TAG_DIV */
+       {"h1",          0}, /* TAG_H1 */
+       {"h2",          0}, /* TAG_H2 */
+       {"p",           HTML_CLRLINE}, /* TAG_P */
+       {"span",        0}, /* TAG_SPAN */
+       {"link",        HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
+       {"br",          HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
+       {"a",           0}, /* TAG_A */
+       {"table",       HTML_CLRLINE}, /* TAG_TABLE */
+       {"col",         HTML_CLRLINE | HTML_NOSTACK}, /* TAG_COL */
+       {"tr",          HTML_CLRLINE}, /* TAG_TR */
+       {"td",          HTML_CLRLINE}, /* TAG_TD */
+       {"li",          HTML_CLRLINE}, /* TAG_LI */
+       {"ul",          HTML_CLRLINE}, /* TAG_UL */
+       {"ol",          HTML_CLRLINE}, /* TAG_OL */
+       {"base",        HTML_CLRLINE | HTML_NOSTACK}, /* TAG_BASE */
+};
+
+static const char       *const htmlattrs[ATTR_MAX] = {
+       "http-equiv",
+       "content",
+       "name",
+       "rel",
+       "href",
+       "type",
+       "media",
+       "class",
+       "style",
+       "width",
+       "valign",
+       "target",
+       "id",
+       "summary",
+};
+
+#ifdef __linux__
+extern int               getsubopt(char **, char * const *, char **);
+#endif
+
+void *
+html_alloc(char *outopts)

 {
 {

-       size_t           res, bufsz;
-       char            *buf;
-       struct stat      st;
-       int              fd, c;
-       ssize_t          ssz;
-
-       c = 0;
-       res = 0;
-       buf = NULL;
-
-       if (-1 == (fd = open(css, O_RDONLY, 0))) {
-               warn("%s", css);
-               return(0);
-       } 
-       
-       if (-1 == fstat(fd, &st)) {
-               warn("%s", css);
-               goto out;
+       struct html     *h;
+       const char      *toks[4];
+       char            *v;
+
+       toks[0] = "style";
+       toks[1] = "man";
+       toks[2] = "includes";
+       toks[3] = NULL;
+
+       h = calloc(1, sizeof(struct html));
+       if (NULL == h) {
+               fprintf(stderr, "memory exhausted\n");
+               exit(EXIT_FAILURE);

        }
 
        }
 

-       bufsz = MAX(st.st_blksize, BUFSIZ);
-       if (NULL == (buf = malloc(bufsz))) {
-               warn("malloc");
-               goto out;
-       }
+       h->tags.head = NULL;
+       h->ords.head = NULL;
+       h->symtab = chars_init(CHARS_HTML);

 
 

-       for (;;) {
-               if (-1 == (ssz = read(fd, buf, bufsz))) {
-                       warn("%s", css);
-                       goto out;
-               } else if (0 == ssz)
+       while (outopts && *outopts)
+               switch (getsubopt(&outopts, UNCONST(toks), &v)) {
+               case (0):
+                       h->style = v;

                        break;
                        break;

-               if ( ! ml_nputs(mbuf, buf, (size_t)ssz, &res))
-                       goto out;
-       }
+               case (1):
+                       h->base_man = v;
+                       break;
+               case (2):
+                       h->base_includes = v;
+                       break;
+               default:
+                       break;
+               }
+
+       return(h);
+}
+
+
+void
+html_free(void *p)
+{
+       struct tag      *tag;
+       struct ord      *ord;
+       struct html     *h;

 
 

-       c = 1;
+       h = (struct html *)p;

 
 

-out:
-       if (-1 == close(fd)) {
-               warn("%s", css);
-               c = 0;
+       while ((ord = h->ords.head) != NULL) { 
+               h->ords.head = ord->next;
+               free(ord);

        }
 
        }
 

-       if (buf)
-               free(buf);
+       while ((tag = h->tags.head) != NULL) {
+               h->tags.head = tag->next;       
+               free(tag);
+       }
+       
+       if (h->symtab)
+               chars_free(h->symtab);

 
 

-       return(c);
+       free(h);

 }
 
 
 }
 
 

-/* ARGSUSED */
-static int 
-html_begin(struct md_mbuf *mbuf, const struct md_args *args,
-               const struct tm *tm, const char *os, 
-               const char *title, const char *section, 
-               const char *vol)
+void
+print_gen_head(struct html *h)

 {
 {

-       const char      *preamble, *css, *trail;
-       char             buf[512];
-       size_t           res;
-
-       preamble =
-       "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n"
-       "    \"http://www.w3.org/TR/html4/strict.dtd\">\n"
-       "<html>\n"
-       "<head>\n"
-       "    <meta http-equiv=\"Content-Type\"\n"
-       "         content=\"text/html;charset=utf-8\">\n"
-       "    <meta name=\"resource-type\" content=\"document\">\n"
-       "    <title>Manual Page for %s(%s)</title>\n";
-
-       css = 
-       "    <link rel=\"stylesheet\" type=\"text/css\"\n"
-       "         href=\"%s\">\n";
-       trail = 
-       "</head>\n"
-       "<body>\n"
-       "<div class=\"mdoc\">\n";
-
-       res = 0;
-
-       (void)snprintf(buf, sizeof(buf) - 1,
-                       preamble, title, section);
-
-       if ( ! ml_puts(mbuf, buf, &res))
-               return(0);
-
-       assert(args->params.html.css);
-       if (HTML_CSS_EMBED & args->params.html.flags) {
-               if ( ! ml_puts(mbuf, "    <style type=\"text/css\"><!--\n", &res))
-                       return(0);
-               if ( ! html_loadcss(mbuf, args->params.html.css))
-                       return(0);
-               if ( ! ml_puts(mbuf, "    --!></style>\n", &res))
-                       return(0);
-       } else {
-               (void)snprintf(buf, sizeof(buf) - 1, css, 
-                               args->params.html.css);
-               if ( ! ml_puts(mbuf, buf, &res))
-                       return(0);
+       struct htmlpair  tag[4];
+
+       tag[0].key = ATTR_HTTPEQUIV;
+       tag[0].val = "Content-Type";
+       tag[1].key = ATTR_CONTENT;
+       tag[1].val = "text/html; charset=utf-8";
+       print_otag(h, TAG_META, 2, tag);
+
+       tag[0].key = ATTR_NAME;
+       tag[0].val = "resource-type";
+       tag[1].key = ATTR_CONTENT;
+       tag[1].val = "document";
+       print_otag(h, TAG_META, 2, tag);
+
+       if (h->style) {
+               tag[0].key = ATTR_REL;
+               tag[0].val = "stylesheet";
+               tag[1].key = ATTR_HREF;
+               tag[1].val = h->style;
+               tag[2].key = ATTR_TYPE;
+               tag[2].val = "text/css";
+               tag[3].key = ATTR_MEDIA;
+               tag[3].val = "all";
+               print_otag(h, TAG_LINK, 4, tag);

        }
        }

+}

 
 

-       if ( ! ml_puts(mbuf, trail, &res))
-               return(0);

 
 

-       return(1);
+static void
+print_spec(struct html *h, const char *p, int len)
+{
+       const char      *rhs;
+       int              i;
+       size_t           sz;
+
+       rhs = chars_a2ascii(h->symtab, p, (size_t)len, &sz);
+
+       if (NULL == rhs) 
+               return;
+       for (i = 0; i < (int)sz; i++) 
+               putchar(rhs[i]);

 }
 
 
 }
 
 

-/* ARGSUSED */
-static int 
-html_end(struct md_mbuf *mbuf, const struct md_args *args)
+static void
+print_res(struct html *h, const char *p, int len)

 {
 {

-       size_t           res;
+       const char      *rhs;
+       int              i;
+       size_t           sz;

 
 

-       res = 0;
-       if ( ! ml_puts(mbuf, "</div></body>\n</html>", &res))
-               return(0);
+       rhs = chars_a2res(h->symtab, p, (size_t)len, &sz);

 
 

-       return(1);
+       if (NULL == rhs)
+               return;
+       for (i = 0; i < (int)sz; i++) 
+               putchar(rhs[i]);

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_blockbodytagname(struct md_mbuf *mbuf, 
-               const struct md_args *args, int tok)
+static void
+print_escape(struct html *h, const char **p)

 {
 {

-       size_t           res;
+       int              j, type;
+       const char      *wp;
+
+       wp = *p;
+       type = 1;
+
+       if (0 == *(++wp)) {
+               *p = wp;
+               return;
+       }
+
+       if ('(' == *wp) {
+               wp++;
+               if (0 == *wp || 0 == *(wp + 1)) {
+                       *p = 0 == *wp ? wp : wp + 1;
+                       return;
+               }
+
+               print_spec(h, wp, 2);
+               *p = ++wp;
+               return;
+
+       } else if ('*' == *wp) {
+               if (0 == *(++wp)) {
+                       *p = wp;
+                       return;
+               }
+
+               switch (*wp) {
+               case ('('):
+                       wp++;
+                       if (0 == *wp || 0 == *(wp + 1)) {
+                               *p = 0 == *wp ? wp : wp + 1;
+                               return;
+                       }
+
+                       print_res(h, wp, 2);
+                       *p = ++wp;
+                       return;
+               case ('['):
+                       type = 0;
+                       break;
+               default:
+                       print_res(h, wp, 1);
+                       *p = wp;
+                       return;
+               }
+       
+       } else if ('f' == *wp) {
+               if (0 == *(++wp)) {
+                       *p = wp;
+                       return;
+               }
+
+               switch (*wp) {
+               case ('B'):
+                       /* TODO */
+                       break;
+               case ('I'):
+                       /* TODO */
+                       break;
+               case ('P'):
+                       /* FALLTHROUGH */
+               case ('R'):
+                       /* TODO */
+                       break;
+               default:
+                       break;
+               }

 
 

-       res = 0;
-       if ( ! ml_puts(mbuf, "div", &res))
-               return(-1);
+               *p = wp;
+               return;

 
 

-       return((ssize_t)res);
+       } else if ('[' != *wp) {
+               print_spec(h, wp, 1);
+               *p = wp;
+               return;
+       }
+
+       wp++;
+       for (j = 0; *wp && ']' != *wp; wp++, j++)
+               /* Loop... */ ;
+
+       if (0 == *wp) {
+               *p = wp;
+               return;
+       }
+
+       if (type)
+               print_spec(h, wp - j, j);
+       else
+               print_res(h, wp - j, j);
+
+       *p = wp;

 }
 
 
 }
 
 

+static void
+print_encode(struct html *h, const char *p)
+{
+
+       for (; *p; p++) {
+               if ('\\' == *p) {
+                       print_escape(h, &p);
+                       continue;
+               }
+               switch (*p) {
+               case ('<'):
+                       printf("&lt;");
+                       break;
+               case ('>'):
+                       printf("&gt;");
+                       break;
+               case ('&'):
+                       printf("&amp;");
+                       break;
+               default:
+                       putchar(*p);
+                       break;
+               }
+       }
+}

 
 
 
 

-/* ARGSUSED */
-static ssize_t
-html_blockheadtagname(struct md_mbuf *mbuf, 
-               const struct md_args *args, int tok)
+struct tag *
+print_otag(struct html *h, enum htmltag tag, 
+               int sz, const struct htmlpair *p)

 {
 {

-       size_t           res;
+       int              i;
+       struct tag      *t;
+
+       if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
+               t = malloc(sizeof(struct tag));
+               if (NULL == t) {
+                       fprintf(stderr, "memory exhausted\n");
+                       exit(EXIT_FAILURE);
+               }
+               t->tag = tag;
+               t->next = h->tags.head;
+               h->tags.head = t;
+       } else
+               t = NULL;
+
+       if ( ! (HTML_NOSPACE & h->flags))
+               if ( ! (HTML_CLRLINE & htmltags[tag].flags))
+                       printf(" ");
+
+       printf("<%s", htmltags[tag].name);
+       for (i = 0; i < sz; i++) {
+               printf(" %s=\"", htmlattrs[p[i].key]);
+               assert(p->val);
+               print_encode(h, p[i].val);
+               printf("\"");
+       }
+       printf(">");

 
 

-       res = 0;
-       if ( ! ml_puts(mbuf, "div", &res))
-               return(-1);
+       h->flags |= HTML_NOSPACE;
+       if (HTML_CLRLINE & htmltags[tag].flags)
+               h->flags |= HTML_NEWLINE;
+       else
+               h->flags &= ~HTML_NEWLINE;

 
 

-       return((ssize_t)res);
+       return(t);

 }
 
 
 /* ARGSUSED */
 }
 
 
 /* ARGSUSED */

-static ssize_t
-html_blocktagname(struct md_mbuf *mbuf, 
-               const struct md_args *args, int tok)
+static void
+print_ctag(struct html *h, enum htmltag tag)

 {
 {

-       size_t           res;
+       
+       printf("</%s>", htmltags[tag].name);
+       if (HTML_CLRLINE & htmltags[tag].flags) {
+               h->flags |= HTML_NOSPACE;
+               h->flags |= HTML_NEWLINE;
+               printf("\n");
+       } else
+               h->flags &= ~HTML_NEWLINE;
+}

 
 

-       res = 0;
-       if ( ! ml_puts(mbuf, "div", &res))
-               return(-1);

 
 

-       return((ssize_t)res);
+/* ARGSUSED */
+void
+print_gen_doctype(struct html *h)
+{
+       
+       printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">", DOCTYPE, DTD);

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_blockheadtagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-               int tok, const int *argc, const char **argv)
+void
+print_text(struct html *h, const char *p)

 {
 {

-       size_t           res;

 
 

-       res = 0;
+       if (*p && 0 == *(p + 1))
+               switch (*p) {
+               case('.'):
+                       /* FALLTHROUGH */
+               case(','):
+                       /* FALLTHROUGH */
+               case(';'):
+                       /* FALLTHROUGH */
+               case(':'):
+                       /* FALLTHROUGH */
+               case('?'):
+                       /* FALLTHROUGH */
+               case('!'):
+                       /* FALLTHROUGH */
+               case(')'):
+                       /* FALLTHROUGH */
+               case(']'):
+                       /* FALLTHROUGH */
+               case('}'):
+                       if ( ! (HTML_IGNDELIM & h->flags))
+                               h->flags |= HTML_NOSPACE;
+                       break;
+               default:
+                       break;
+               }

 
 

-       if ( ! ml_puts(mbuf, " class=\"head-", &res))
-               return(0);
-       if ( ! ml_puts(mbuf, toknames[tok], &res))
-               return(0);
-       if ( ! ml_puts(mbuf, "\"", &res))
-               return(0);
+       if ( ! (h->flags & HTML_NOSPACE))
+               printf(" ");

 
 

-       switch (tok) {
-       default:
-               break;
-       }
+       h->flags &= ~HTML_NOSPACE;
+       h->flags &= ~HTML_NEWLINE;
+
+       if (p)
+               print_encode(h, p);

 
 

-       return(0);
+       if (*p && 0 == *(p + 1))
+               switch (*p) {
+               case('('):
+                       /* FALLTHROUGH */
+               case('['):
+                       /* FALLTHROUGH */
+               case('{'):
+                       h->flags |= HTML_NOSPACE;
+                       break;
+               default:
+                       break;
+               }

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_blockbodytagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-               int tok, const int *argc, const char **argv)
+void
+print_tagq(struct html *h, const struct tag *until)

 {
 {

-       size_t           res;
-
-       res = 0;
+       struct tag      *tag;
+
+       while ((tag = h->tags.head) != NULL) {
+               print_ctag(h, tag->tag);
+               h->tags.head = tag->next;
+               free(tag);
+               if (until && tag == until)
+                       return;
+       }
+}

 
 

-       if ( ! ml_puts(mbuf, " class=\"body-", &res))
-               return(0);
-       if ( ! ml_puts(mbuf, toknames[tok], &res))
-               return(0);
-       if ( ! ml_puts(mbuf, "\"", &res))
-               return(0);

 
 

-       switch (tok) {
-       default:
-               break;
+void
+print_stagq(struct html *h, const struct tag *suntil)
+{
+       struct tag      *tag;
+
+       while ((tag = h->tags.head) != NULL) {
+               if (suntil && tag == suntil)
+                       return;
+               print_ctag(h, tag->tag);
+               h->tags.head = tag->next;
+               free(tag);

        }
        }

+}
+
+
+void
+bufinit(struct html *h)
+{

 
 

-       return(res);
+       h->buf[0] = '\0';
+       h->buflen = 0;

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_blocktagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-               int tok, const int *argc, const char **argv)
+void
+bufcat_style(struct html *h, const char *key, const char *val)

 {
 {

-       size_t           res;

 
 

-       res = 0;
+       bufcat(h, key);
+       bufncat(h, ":", 1);
+       bufcat(h, val);
+       bufncat(h, ";", 1);
+}

 
 

-       if ( ! ml_puts(mbuf, " class=\"block-", &res))
-               return(0);
-       if ( ! ml_puts(mbuf, toknames[tok], &res))
-               return(0);
-       if ( ! ml_puts(mbuf, "\"", &res))
-               return(0);

 
 

-       switch (tok) {
-       default:
-               break;
-       }
+void
+bufcat(struct html *h, const char *p)
+{

 
 

-       return(0);
+       bufncat(h, p, strlen(p));

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_inlinetagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-               int tok, const int *argc, const char **argv)
+void
+buffmt(struct html *h, const char *fmt, ...)

 {
 {

-       size_t           res;
+       va_list          ap;

 
 

-       res = 0;
+       va_start(ap, fmt);
+       (void)vsnprintf(h->buf + (int)h->buflen, 
+                       BUFSIZ - h->buflen - 1, fmt, ap);
+       va_end(ap);
+       h->buflen = strlen(h->buf);
+}

 
 

-       if ( ! ml_puts(mbuf, " class=\"inline-", &res))
-               return(0);
-       if ( ! ml_puts(mbuf, toknames[tok], &res))
-               return(0);
-       if ( ! ml_puts(mbuf, "\"", &res))
-               return(0);

 
 

+void
+bufncat(struct html *h, const char *p, size_t sz)
+{

 
 

-       switch (tok) {
-       default:
-               break;
-       }
+       if (h->buflen + sz > BUFSIZ - 1)
+               sz = BUFSIZ - 1 - h->buflen;

 
 

-       return(0);
+       (void)strncat(h->buf, p, sz);
+       h->buflen += sz;

 }
 
 
 }
 
 

-/* ARGSUSED */
-static ssize_t
-html_inlinetagname(struct md_mbuf *mbuf, 
-               const struct md_args *args, int tok)
+void
+buffmt_includes(struct html *h, const char *name)

 {
 {

-       size_t           res;
-
-       res = 0;
+       const char      *p, *pp;

 
 

-       switch (tok) {
-       case (ROFF_Pp):
-               if ( ! ml_puts(mbuf, "div", &res))
-                       return(-1);
-               break;
-       default:
-               if ( ! ml_puts(mbuf, "span", &res))
-                       return(-1);
-               break;
+       pp = h->base_includes;
+       
+       while (NULL != (p = strchr(pp, '%'))) {
+               bufncat(h, pp, (size_t)(p - pp));
+               switch (*(p + 1)) {
+               case('I'):
+                       bufcat(h, name);
+                       break;
+               default:
+                       bufncat(h, p, 2);
+                       break;
+               }
+               pp = p + 2;

        }
        }

-
-       return((ssize_t)res);
+       if (pp)
+               bufcat(h, pp);

 }
 
 
 }
 
 

-static ssize_t 
-html_begintag(struct md_mbuf *mbuf, const struct md_args *args, 
-               enum md_ns ns, int tok, 
-               const int *argc, const char **argv)
+void
+buffmt_man(struct html *h, 
+               const char *name, const char *sec)

 {
 {

+       const char      *p, *pp;

 
 

-       assert(ns != MD_NS_DEFAULT);
-       switch (ns) {
-       case (MD_NS_BLOCK):
-               if ( ! html_blocktagname(mbuf, args, tok))
-                       return(0);
-               return(html_blocktagargs(mbuf, args, 
-                                       tok, argc, argv));
-       case (MD_NS_BODY):
-               if ( ! html_blockbodytagname(mbuf, args, tok))
-                       return(0);
-               return(html_blockbodytagargs(mbuf, args, 
-                                       tok, argc, argv));
-       case (MD_NS_HEAD):
-               if ( ! html_blockheadtagname(mbuf, args, tok))
-                       return(0);
-               return(html_blockheadtagargs(mbuf, args, 
-                                       tok, argc, argv));
-       default:
-               break;
+       pp = h->base_man;
+       
+       /* LINTED */
+       while (NULL != (p = strchr(pp, '%'))) {
+               bufncat(h, pp, (size_t)(p - pp));
+               switch (*(p + 1)) {
+               case('S'):
+                       bufcat(h, sec ? sec : "1");
+                       break;
+               case('N'):
+                       buffmt(h, name);
+                       break;
+               default:
+                       bufncat(h, p, 2);
+                       break;
+               }
+               pp = p + 2;

        }
        }

-
-       if ( ! html_inlinetagname(mbuf, args, tok))
-               return(0);
-       return(html_inlinetagargs(mbuf, args, tok, argc, argv));
+       if (pp)
+               bufcat(h, pp);

 }
 
 
 }
 
 

-static ssize_t 
-html_endtag(struct md_mbuf *mbuf, const struct md_args *args, 
-               enum md_ns ns, int tok)
+void
+bufcat_su(struct html *h, const char *p, const struct roffsu *su)

 {
 {

+       double           v;
+       const char      *u;
+
+       v = su->scale;

 
 

-       assert(ns != MD_NS_DEFAULT);
-       switch (ns) {
-       case (MD_NS_BLOCK):
-               return(html_blocktagname(mbuf, args, tok));
-       case (MD_NS_BODY):
-               return(html_blockbodytagname(mbuf, args, tok));
-       case (MD_NS_HEAD):
-               return(html_blockheadtagname(mbuf, args, tok));
+       switch (su->unit) {
+       case (SCALE_CM):
+               u = "cm";
+               break;
+       case (SCALE_IN):
+               u = "in";
+               break;
+       case (SCALE_PC):
+               u = "pc";
+               break;
+       case (SCALE_PT):
+               u = "pt";
+               break;
+       case (SCALE_EM):
+               u = "em";
+               break;
+       case (SCALE_MM):
+               if (0 == (v /= 100))
+                       v = 1;
+               u = "em";
+               break;
+       case (SCALE_EN):
+               u = "ex";
+               break;
+       case (SCALE_BU):
+               u = "ex";
+               break;
+       case (SCALE_VS):
+               u = "em";
+               break;

        default:
        default:

+               u = "ex";

                break;
        }
 
                break;
        }
 

-       return(html_inlinetagname(mbuf, args, tok));
+       if (su->pt)
+               buffmt(h, "%s: %f%s;", p, v, u);
+       else
+               /* LINTED */
+               buffmt(h, "%s: %d%s;", p, (int)v, u);

 }
 
 
 }
 
 

-int
-md_line_html(void *data, char *buf)
+void
+html_idcat(char *dst, const char *src, int sz)

 {
 {

+       int              ssz;

 
 

-       return(mlg_line((struct md_mlg *)data, buf));
-}
+       assert(sz);

 
 

+       /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */

 
 

-int
-md_exit_html(void *data, int flush)
-{
+       for ( ; *dst != '\0' && sz; dst++, sz--)
+               /* Jump to end. */ ;

 
 

-       return(mlg_exit((struct md_mlg *)data, flush));
-}
+       assert(sz > 2);

 
 

+       /* We can't start with a number (bah). */

 
 

-void *
-md_init_html(const struct md_args *args,
-               struct md_mbuf *mbuf, const struct md_rbuf *rbuf)
-{
+       *dst++ = 'x';
+       *dst = '\0';
+       sz--;

 
 

-       return(mlg_alloc(args, rbuf, mbuf, html_begintag, 
-                               html_endtag, html_begin, html_end));
+       for ( ; *src != '\0' && sz > 1; src++) {
+               ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
+               sz -= ssz;
+               dst += ssz;
+       }

 }
 }

-