Remove \s TODO: these are intelligently ignored along with \m and \M.

[mandoc.git] / html.c

diff --git a/html.c b/html.c
index d73c87b614271bf6375fb12b89e503074973e2cd..5e19b09cfc94a7c74a136546cd04431ee490eacf 100644 (file)
--- a/html.c
+++ b/html.c
@@ -1,6 +1,6 @@
-/*     $Id: html.c,v 1.57 2009/10/04 09:02:40 kristaps Exp $ */
+/*     $Id: html.c,v 1.107 2010/07/16 22:33:30 kristaps Exp $ */

 /*
 /*

- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>

  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above


@@ -14,55 +14,64 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+

 #include <sys/types.h>
 #include <sys/types.h>

-#include <sys/queue.h>

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

-#include <err.h>
-#include <stdio.h>
+#include <ctype.h>

 #include <stdarg.h>
 #include <stdarg.h>

+#include <stdio.h>
+#include <stdint.h>

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

+#include "mandoc.h"
+#include "out.h"

 #include "chars.h"
 #include "html.h"
 #include "chars.h"
 #include "html.h"

-
-#define        DOCTYPE         "-//W3C//DTD HTML 4.01//EN"
-#define        DTD             "http://www.w3.org/TR/html4/strict.dtd"
+#include "main.h"

 
 struct htmldata {
 
 struct htmldata {

-       char             *name;
+       const char       *name;

        int               flags;
 #define        HTML_CLRLINE     (1 << 0)
 #define        HTML_NOSTACK     (1 << 1)
        int               flags;
 #define        HTML_CLRLINE     (1 << 0)
 #define        HTML_NOSTACK     (1 << 1)

+#define        HTML_AUTOCLOSE   (1 << 2) /* Tag has auto-closure. */

 };
 
 static const struct htmldata htmltags[TAG_MAX] = {
        {"html",        HTML_CLRLINE}, /* TAG_HTML */
        {"head",        HTML_CLRLINE}, /* TAG_HEAD */
        {"body",        HTML_CLRLINE}, /* TAG_BODY */
 };
 
 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 */
+       {"meta",        HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_META */

        {"title",       HTML_CLRLINE}, /* TAG_TITLE */
        {"div",         HTML_CLRLINE}, /* TAG_DIV */
        {"h1",          0}, /* TAG_H1 */
        {"h2",          0}, /* TAG_H2 */
        {"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 */
        {"span",        0}, /* TAG_SPAN */

-       {"link",        HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
-       {"br",          HTML_CLRLINE | HTML_NOSTACK}, /* TAG_LINK */
+       {"link",        HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_LINK */
+       {"br",          HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_BR */

        {"a",           0}, /* TAG_A */
        {"table",       HTML_CLRLINE}, /* TAG_TABLE */
        {"a",           0}, /* TAG_A */
        {"table",       HTML_CLRLINE}, /* TAG_TABLE */

-       {"col",         HTML_CLRLINE | HTML_NOSTACK}, /* TAG_COL */
+       {"col",         HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* 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 */
        {"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] = {
+static const char      *const htmlfonts[HTMLFONT_MAX] = {
+       "roman",
+       "bold",
+       "italic"
+};
+
+static const char      *const htmlattrs[ATTR_MAX] = {

        "http-equiv",
        "content",
        "name",
        "http-equiv",
        "content",
        "name",


@@ -76,36 +85,46 @@ static      const char       *const htmlattrs[ATTR_MAX] = {
        "valign",
        "target",
        "id",
        "valign",
        "target",
        "id",

+       "summary",

 };
 
 };
 

-#ifdef __linux__
-extern int               getsubopt(char **, char * const *, char **);
-#endif
+static void              print_spec(struct html *, const char *, size_t);
+static void              print_res(struct html *, const char *, size_t);
+static void              print_ctag(struct html *, enum htmltag);
+static void              print_doctype(struct html *);
+static void              print_xmltype(struct html *);
+static int               print_encode(struct html *, const char *, int);
+static void              print_metaf(struct html *, enum roffdeco);
+static void              print_attr(struct html *, 
+                               const char *, const char *);
+static void             *ml_alloc(char *, enum htmltype);

 
 

-void *
-html_alloc(char *outopts)
+
+static void *
+ml_alloc(char *outopts, enum htmltype type)

 {
        struct html     *h;
 {
        struct html     *h;

-       char            *toks[4], *v;
+       const char      *toks[4];
+       char            *v;

 
        toks[0] = "style";
        toks[1] = "man";
        toks[2] = "includes";
        toks[3] = NULL;
 
 
        toks[0] = "style";
        toks[1] = "man";
        toks[2] = "includes";
        toks[3] = NULL;
 

-       if (NULL == (h = calloc(1, sizeof(struct html))))
-               return(NULL);
-
-       SLIST_INIT(&h->tags);
-       SLIST_INIT(&h->ords);
-
-       if (NULL == (h->symtab = chars_init(CHARS_HTML))) {
-               free(h);
-               return(NULL);
+       h = calloc(1, sizeof(struct html));
+       if (NULL == h) {
+               perror(NULL);
+               exit(EXIT_FAILURE);

        }
 
        }
 

+       h->type = type;
+       h->tags.head = NULL;
+       h->ords.head = NULL;
+       h->symtab = chars_init(CHARS_HTML);
+

        while (outopts && *outopts)
        while (outopts && *outopts)

-               switch (getsubopt(&outopts, toks, &v)) {
+               switch (getsubopt(&outopts, UNCONST(toks), &v)) {

                case (0):
                        h->style = v;
                        break;
                case (0):
                        h->style = v;
                        break;


@@ -122,6 +141,21 @@ html_alloc(char *outopts)
        return(h);
 }
 
        return(h);
 }
 

+void *
+html_alloc(char *outopts)
+{
+
+       return(ml_alloc(outopts, HTML_HTML_4_01_STRICT));
+}
+
+
+void *
+xhtml_alloc(char *outopts)
+{
+
+       return(ml_alloc(outopts, HTML_XHTML_1_0_STRICT));
+}
+

 
 void
 html_free(void *p)
 
 void
 html_free(void *p)


@@ -132,15 +166,13 @@ html_free(void *p)
 
        h = (struct html *)p;
 
 
        h = (struct html *)p;
 

-       while ( ! SLIST_EMPTY(&h->ords)) {
-               ord = SLIST_FIRST(&h->ords);
-               SLIST_REMOVE_HEAD(&h->ords, entry);
+       while ((ord = h->ords.head) != NULL) { 
+               h->ords.head = ord->next;

                free(ord);
        }
 
                free(ord);
        }
 

-       while ( ! SLIST_EMPTY(&h->tags)) {
-               tag = SLIST_FIRST(&h->tags);
-               SLIST_REMOVE_HEAD(&h->tags, entry);
+       while ((tag = h->tags.head) != NULL) {
+               h->tags.head = tag->next;       

                free(tag);
        }
        
                free(tag);
        }
        


@@ -183,161 +215,167 @@ print_gen_head(struct html *h)
 
 
 static void
 
 
 static void

-print_spec(struct html *h, const char *p, int len)
+print_spec(struct html *h, const char *p, size_t len)

 {
 {

+       int              cp;

        const char      *rhs;
        const char      *rhs;

-       int              i;

        size_t           sz;
 
        size_t           sz;
 

-       rhs = chars_a2ascii(h->symtab, p, (size_t)len, &sz);
-
-       if (NULL == rhs) 
+       if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
+               printf("&#%d;", cp);

                return;
                return;

-       for (i = 0; i < (int)sz; i++) 
-               putchar(rhs[i]);
+       } else if (-1 == cp)
+               return;
+
+       if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
+               fwrite(rhs, 1, sz, stdout);

 }
 
 
 static void
 }
 
 
 static void

-print_res(struct html *h, const char *p, int len)
+print_res(struct html *h, const char *p, size_t len)

 {
 {

+       int              cp;

        const char      *rhs;
        const char      *rhs;

-       int              i;

        size_t           sz;
 
        size_t           sz;
 

-       rhs = chars_a2res(h->symtab, p, (size_t)len, &sz);
-
-       if (NULL == rhs)
+       if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
+               printf("&#%d;", cp);
+               return;
+       } else if (-1 == cp)

                return;
                return;

-       for (i = 0; i < (int)sz; i++) 
-               putchar(rhs[i]);
+
+       if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
+               fwrite(rhs, 1, sz, stdout);

 }
 
 
 }
 
 

-static void
-print_escape(struct html *h, const char **p)
+struct tag *
+print_ofont(struct html *h, enum htmlfont font)

 {
 {

-       int              j, type;
-       const char      *wp;
+       struct htmlpair  tag;

 
 

-       wp = *p;
-       type = 1;
+       h->metal = h->metac;
+       h->metac = font;

 
 

-       if (0 == *(++wp)) {
-               *p = wp;
-               return;
+       /* FIXME: DECO_ROMAN should just close out preexisting. */
+
+       if (h->metaf && h->tags.head == h->metaf)
+               print_tagq(h, h->metaf);
+
+       PAIR_CLASS_INIT(&tag, htmlfonts[font]);
+       h->metaf = print_otag(h, TAG_SPAN, 1, &tag);
+       return(h->metaf);
+}
+
+
+static void
+print_metaf(struct html *h, enum roffdeco deco)
+{
+       enum htmlfont    font;
+
+       switch (deco) {
+       case (DECO_PREVIOUS):
+               font = h->metal;
+               break;
+       case (DECO_ITALIC):
+               font = HTMLFONT_ITALIC;
+               break;
+       case (DECO_BOLD):
+               font = HTMLFONT_BOLD;
+               break;
+       case (DECO_ROMAN):
+               font = HTMLFONT_NONE;
+               break;
+       default:
+               abort();
+               /* NOTREACHED */

        }
 
        }
 

-       if ('(' == *wp) {
-               wp++;
-               if (0 == *wp || 0 == *(wp + 1)) {
-                       *p = 0 == *wp ? wp : wp + 1;
-                       return;
-               }
+       (void)print_ofont(h, font);
+}

 
 

-               print_spec(h, wp, 2);
-               *p = ++wp;
-               return;

 
 

-       } else if ('*' == *wp) {
-               if (0 == *(++wp)) {
-                       *p = wp;
-                       return;
-               }
+static int
+print_encode(struct html *h, const char *p, int norecurse)
+{
+       size_t           sz;
+       int              len, nospace;
+       const char      *seq;
+       enum roffdeco    deco;
+       static const char rejs[6] = { '\\', '<', '>', '&', ASCII_HYPH, '\0' };

 
 

-               switch (*wp) {
-               case ('('):
-                       wp++;
-                       if (0 == *wp || 0 == *(wp + 1)) {
-                               *p = 0 == *wp ? wp : wp + 1;
-                               return;
-                       }
+       nospace = 0;

 
 

-                       print_res(h, wp, 2);
-                       *p = ++wp;
-                       return;
-               case ('['):
-                       type = 0;
+       for (; *p; p++) {
+               sz = strcspn(p, rejs);
+
+               fwrite(p, 1, sz, stdout);
+               p += /* LINTED */
+                       sz;
+
+               if ('<' == *p) {
+                       printf("&lt;");
+                       continue;
+               } else if ('>' == *p) {
+                       printf("&gt;");
+                       continue;
+               } else if ('&' == *p) {
+                       printf("&amp;");
+                       continue;
+               } else if (ASCII_HYPH == *p) {
+                       /*
+                        * Note: "soft hyphens" aren't graphically
+                        * displayed when not breaking the text; we want
+                        * them to be displayed.
+                        */
+                       /*printf("&#173;");*/
+                       putchar('-');
+                       continue;
+               } else if ('\0' == *p)

                        break;
                        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 */
+               seq = ++p;
+               len = a2roffdeco(&deco, &seq, &sz);
+
+               switch (deco) {
+               case (DECO_RESERVED):
+                       print_res(h, seq, sz);

                        break;
                        break;

-               case ('I'):
-                       /* TODO */
+               case (DECO_SPECIAL):
+                       print_spec(h, seq, sz);

                        break;
                        break;

-               case ('P'):
+               case (DECO_PREVIOUS):
+                       /* FALLTHROUGH */
+               case (DECO_BOLD):

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case ('R'):
-                       /* TODO */
+               case (DECO_ITALIC):
+                       /* FALLTHROUGH */
+               case (DECO_ROMAN):
+                       if (norecurse)
+                               break;
+                       print_metaf(h, deco);

                        break;
                default:
                        break;
                }
 
                        break;
                default:
                        break;
                }
 

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

 
 

-       if (0 == *wp) {
-               *p = wp;
-               return;
+               if (DECO_NOSPACE == deco && '\0' == *(p + 1))
+                       nospace = 1;

        }
 
        }
 

-       if (type)
-               print_spec(h, wp - j, j);
-       else
-               print_res(h, wp - j, j);
-
-       *p = wp;
+       return(nospace);

 }
 
 
 static void
 }
 
 
 static void

-print_encode(struct html *h, const char *p)
+print_attr(struct html *h, const char *key, const char *val)

 {
 {

-
-       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;
-               }
-       }
+       printf(" %s=\"", key);
+       (void)print_encode(h, val, 1);
+       putchar('\"');

 }
 
 
 }
 
 


@@ -348,67 +386,124 @@ print_otag(struct html *h, enum htmltag tag,
        int              i;
        struct tag      *t;
 
        int              i;
        struct tag      *t;
 

+       /* Push this tags onto the stack of open scopes. */
+

        if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {
        if ( ! (HTML_NOSTACK & htmltags[tag].flags)) {

-               if (NULL == (t = malloc(sizeof(struct tag))))
-                       err(EXIT_FAILURE, "malloc");
+               t = malloc(sizeof(struct tag));
+               if (NULL == t) {
+                       perror(NULL);
+                       exit(EXIT_FAILURE);
+               }

                t->tag = tag;
                t->tag = tag;

-               SLIST_INSERT_HEAD(&h->tags, t, entry);
+               t->next = h->tags.head;
+               h->tags.head = t;

        } else
                t = NULL;
 
        if ( ! (HTML_NOSPACE & h->flags))
        } else
                t = NULL;
 
        if ( ! (HTML_NOSPACE & h->flags))

-               if ( ! (HTML_CLRLINE & htmltags[tag].flags))
-                       printf(" ");
+               if ( ! (HTML_CLRLINE & htmltags[tag].flags)) {
+                       /* Manage keeps! */
+                       if ( ! (HTML_KEEP & h->flags)) {
+                               if (HTML_PREKEEP & h->flags)
+                                       h->flags |= HTML_KEEP;
+                               putchar(' ');
+                       } else
+                               printf("&#160;");
+               }
+
+       /* Print out the tag name and attributes. */

 
        printf("<%s", htmltags[tag].name);
 
        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("\"");
+       for (i = 0; i < sz; i++)
+               print_attr(h, htmlattrs[p[i].key], p[i].val);
+
+       /* Add non-overridable attributes. */
+
+       if (TAG_HTML == tag && HTML_XHTML_1_0_STRICT == h->type) {
+               print_attr(h, "xmlns", "http://www.w3.org/1999/xhtml");
+               print_attr(h, "xml:lang", "en");
+               print_attr(h, "lang", "en");

        }
        }

-       printf(">");

 
 

-       h->flags |= HTML_NOSPACE;
-       if (HTML_CLRLINE & htmltags[tag].flags)
-               h->flags |= HTML_NEWLINE;
-       else
-               h->flags &= ~HTML_NEWLINE;
+       /* Accomodate for XML "well-formed" singleton escaping. */
+
+       if (HTML_AUTOCLOSE & htmltags[tag].flags)
+               switch (h->type) {
+               case (HTML_XHTML_1_0_STRICT):
+                       putchar('/');
+                       break;
+               default:
+                       break;
+               }

 
 

+       putchar('>');
+
+       h->flags |= HTML_NOSPACE;

        return(t);
 }
 
 
        return(t);
 }
 
 

-/* ARGSUSED */

 static void
 print_ctag(struct html *h, enum htmltag tag)
 {
        
        printf("</%s>", htmltags[tag].name);
 static void
 print_ctag(struct html *h, enum htmltag tag)
 {
        
        printf("</%s>", htmltags[tag].name);

-       if (HTML_CLRLINE & htmltags[tag].flags)
+       if (HTML_CLRLINE & htmltags[tag].flags) {

                h->flags |= HTML_NOSPACE;
                h->flags |= HTML_NOSPACE;

-       if (HTML_CLRLINE & htmltags[tag].flags)
-               h->flags |= HTML_NEWLINE;
-       else
-               h->flags &= ~HTML_NEWLINE;
+               putchar('\n');
+       } 

 }
 
 
 }
 
 

-/* ARGSUSED */

 void
 void

-print_gen_doctype(struct html *h)
+print_gen_decls(struct html *h)

 {
 {

-       
-       printf("<!DOCTYPE HTML PUBLIC \"%s\" \"%s\">", DOCTYPE, DTD);
+
+       print_xmltype(h);
+       print_doctype(h);
+}
+
+
+static void
+print_xmltype(struct html *h)
+{
+
+       if (HTML_XHTML_1_0_STRICT == h->type)
+               printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+}
+
+
+static void
+print_doctype(struct html *h)
+{
+       const char      *doctype;
+       const char      *dtd;
+       const char      *name;
+
+       switch (h->type) {
+       case (HTML_HTML_4_01_STRICT):
+               name = "HTML";
+               doctype = "-//W3C//DTD HTML 4.01//EN";
+               dtd = "http://www.w3.org/TR/html4/strict.dtd";
+               break;
+       default:
+               name = "html";
+               doctype = "-//W3C//DTD XHTML 1.0 Strict//EN";
+               dtd = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
+               break;
+       }
+
+       printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">\n", 
+                       name, doctype, dtd);

 }
 
 
 void
 }
 
 
 void

-print_text(struct html *h, const char *p)
+print_text(struct html *h, const char *word)

 {
 
 {
 

-       if (*p && 0 == *(p + 1))
-               switch (*p) {
+       if (word[0] && '\0' == word[1])
+               switch (word[0]) {

                case('.'):
                        /* FALLTHROUGH */
                case(','):
                case('.'):
                        /* FALLTHROUGH */
                case(','):


@@ -424,8 +519,6 @@ print_text(struct html *h, const char *p)
                case(')'):
                        /* FALLTHROUGH */
                case(']'):
                case(')'):
                        /* FALLTHROUGH */
                case(']'):

-                       /* FALLTHROUGH */
-               case('}'):

                        if ( ! (HTML_IGNDELIM & h->flags))
                                h->flags |= HTML_NOSPACE;
                        break;
                        if ( ! (HTML_IGNDELIM & h->flags))
                                h->flags |= HTML_NOSPACE;
                        break;


@@ -433,22 +526,29 @@ print_text(struct html *h, const char *p)
                        break;
                }
 
                        break;
                }
 

-       if ( ! (h->flags & HTML_NOSPACE))
-               printf(" ");
-
-       h->flags &= ~HTML_NOSPACE;
-       h->flags &= ~HTML_NEWLINE;
+       if ( ! (HTML_NOSPACE & h->flags)) {
+               /* Manage keeps! */
+               if ( ! (HTML_KEEP & h->flags)) {
+                       if (HTML_PREKEEP & h->flags)
+                               h->flags |= HTML_KEEP;
+                       putchar(' ');
+               } else
+                       printf("&#160;");
+       }

 
 

-       if (p)
-               print_encode(h, p);
+       assert(word);
+       if ( ! print_encode(h, word, 0))
+               h->flags &= ~HTML_NOSPACE;

 
 

-       if (*p && 0 == *(p + 1))
-               switch (*p) {
+       /* 
+        * Note that we don't process the pipe: the parser sees it as
+        * punctuation, but we don't in terms of typography.
+        */
+       if (word[0] && '\0' == word[1])
+               switch (word[0]) {

                case('('):
                        /* FALLTHROUGH */
                case('['):
                case('('):
                        /* FALLTHROUGH */
                case('['):

-                       /* FALLTHROUGH */
-               case('{'):

                        h->flags |= HTML_NOSPACE;
                        break;
                default:
                        h->flags |= HTML_NOSPACE;
                        break;
                default:


@@ -462,10 +562,11 @@ print_tagq(struct html *h, const struct tag *until)
 {
        struct tag      *tag;
 
 {
        struct tag      *tag;
 

-       while ( ! SLIST_EMPTY(&h->tags)) {
-               tag = SLIST_FIRST(&h->tags);
+       while ((tag = h->tags.head) != NULL) {
+               if (tag == h->metaf)
+                       h->metaf = NULL;

                print_ctag(h, tag->tag);
                print_ctag(h, tag->tag);

-               SLIST_REMOVE_HEAD(&h->tags, entry);
+               h->tags.head = tag->next;

                free(tag);
                if (until && tag == until)
                        return;
                free(tag);
                if (until && tag == until)
                        return;


@@ -478,12 +579,13 @@ print_stagq(struct html *h, const struct tag *suntil)
 {
        struct tag      *tag;
 
 {
        struct tag      *tag;
 

-       while ( ! SLIST_EMPTY(&h->tags)) {
-               tag = SLIST_FIRST(&h->tags);
+       while ((tag = h->tags.head) != NULL) {

                if (suntil && tag == suntil)
                        return;
                if (suntil && tag == suntil)
                        return;

+               if (tag == h->metaf)
+                       h->metaf = NULL;

                print_ctag(h, tag->tag);
                print_ctag(h, tag->tag);

-               SLIST_REMOVE_HEAD(&h->tags, entry);
+               h->tags.head = tag->next;

                free(tag);
        }
 }
                free(tag);
        }
 }


@@ -498,6 +600,17 @@ bufinit(struct html *h)
 }
 
 
 }
 
 

+void
+bufcat_style(struct html *h, const char *key, const char *val)
+{
+
+       bufcat(h, key);
+       bufncat(h, ":", 1);
+       bufcat(h, val);
+       bufncat(h, ";", 1);
+}
+
+

 void
 bufcat(struct html *h, const char *p)
 {
 void
 bufcat(struct html *h, const char *p)
 {


@@ -537,7 +650,8 @@ buffmt_includes(struct html *h, const char *name)
        const char      *p, *pp;
 
        pp = h->base_includes;
        const char      *p, *pp;
 
        pp = h->base_includes;

-       while ((p = strchr(pp, '%'))) {
+       
+       while (NULL != (p = strchr(pp, '%'))) {

                bufncat(h, pp, (size_t)(p - pp));
                switch (*(p + 1)) {
                case('I'):
                bufncat(h, pp, (size_t)(p - pp));
                switch (*(p + 1)) {
                case('I'):


@@ -561,14 +675,16 @@ buffmt_man(struct html *h,
        const char      *p, *pp;
 
        pp = h->base_man;
        const char      *p, *pp;
 
        pp = h->base_man;

-       while ((p = strchr(pp, '%'))) {
+       
+       /* LINTED */
+       while (NULL != (p = strchr(pp, '%'))) {

                bufncat(h, pp, (size_t)(p - pp));
                switch (*(p + 1)) {
                case('S'):
                bufncat(h, pp, (size_t)(p - pp));
                switch (*(p + 1)) {
                case('S'):

-                       bufcat(h, sec);
+                       bufcat(h, sec ? sec : "1");

                        break;
                case('N'):
                        break;
                case('N'):

-                       buffmt(h, name ? name : "1");
+                       buffmt(h, name);

                        break;
                default:
                        bufncat(h, p, 2);
                        break;
                default:
                        bufncat(h, p, 2);


@@ -579,3 +695,82 @@ buffmt_man(struct html *h,
        if (pp)
                bufcat(h, pp);
 }
        if (pp)
                bufcat(h, pp);
 }

+
+
+void
+bufcat_su(struct html *h, const char *p, const struct roffsu *su)
+{
+       double           v;
+       const char      *u;
+
+       v = su->scale;
+
+       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:
+               u = "ex";
+               break;
+       }
+
+       /* 
+        * XXX: the CSS spec isn't clear as to which types accept
+        * integer or real numbers, so we just make them all decimals.
+        */
+       buffmt(h, "%s: %.2f%s;", p, v, u);
+}
+
+
+void
+html_idcat(char *dst, const char *src, int sz)
+{
+       int              ssz;
+
+       assert(sz);
+
+       /* Cf. <http://www.w3.org/TR/html4/types.html#h-6.2>. */
+
+       for ( ; *dst != '\0' && sz; dst++, sz--)
+               /* Jump to end. */ ;
+
+       assert(sz > 2);
+
+       /* We can't start with a number (bah). */
+
+       *dst++ = 'x';
+       *dst = '\0';
+       sz--;
+
+       for ( ; *src != '\0' && sz > 1; src++) {
+               ssz = snprintf(dst, (size_t)sz, "%.2x", *src);
+               sz -= ssz;
+               dst += ssz;
+       }
+}