Implement the \N'number' (numbered character) roff escape sequence.

[mandoc.git] / html.c

diff --git a/html.c b/html.c
index 57d6f5dbe3db8964223fd40a6d4932b6046a4b50..7eba86dd2ce3c355f023c9c8992443d830ef1bd0 100644 (file)
--- a/html.c
+++ b/html.c
@@ -1,6 +1,7 @@
-/*     $Id: html.c,v 1.114 2010/12/15 14:52:16 kristaps Exp $ */
+/*     $Id: html.c,v 1.126 2011/01/30 16:05:37 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -67,31 +68,33 @@ static      const struct htmldata htmltags[TAG_MAX] = {
        {"dl",          HTML_CLRLINE}, /* TAG_DL */
        {"dt",          HTML_CLRLINE}, /* TAG_DT */
        {"dd",          HTML_CLRLINE}, /* TAG_DD */
-};
-
-static const char      *const htmlfonts[HTMLFONT_MAX] = {
-       "roman",
-       "bold",
-       "italic"
+       {"blockquote",  HTML_CLRLINE}, /* TAG_BLOCKQUOTE */
+       {"p",           HTML_CLRLINE | HTML_NOSTACK | HTML_AUTOCLOSE}, /* TAG_P */
+       {"pre",         HTML_CLRLINE }, /* TAG_PRE */
+       {"b",           0 }, /* TAG_B */
+       {"i",           0 }, /* TAG_I */
+       {"code",        0 }, /* TAG_CODE */
+       {"small",       0 }, /* TAG_SMALL */
 };
 
 static const char      *const htmlattrs[ATTR_MAX] = {
-       "http-equiv",
-       "content",
-       "name",
-       "rel",
-       "href",
-       "type",
-       "media",
-       "class",
-       "style",
-       "width",
-       "valign",
-       "target",
-       "id",
-       "summary",
+       "http-equiv", /* ATTR_HTTPEQUIV */
+       "content", /* ATTR_CONTENT */
+       "name", /* ATTR_NAME */
+       "rel", /* ATTR_REL */
+       "href", /* ATTR_HREF */
+       "type", /* ATTR_TYPE */
+       "media", /* ATTR_MEDIA */
+       "class", /* ATTR_CLASS */
+       "style", /* ATTR_STYLE */
+       "width", /* ATTR_WIDTH */
+       "id", /* ATTR_ID */
+       "summary", /* ATTR_SUMMARY */
+       "align", /* ATTR_ALIGN */
+       "colspan", /* ATTR_COLSPAN */
 };
 
+static void              print_num(struct html *, const char *, size_t);
 static void              print_spec(struct html *, enum roffdeco,
                                const char *, size_t);
 static void              print_res(struct html *, const char *, size_t);
@@ -212,6 +215,17 @@ print_gen_head(struct html *h)
 }
 
 
+static void
+print_num(struct html *h, const char *p, size_t len)
+{
+       const char      *rhs;
+
+       rhs = chars_num2char(p, len);
+       if (rhs)
+               putchar((int)*rhs);
+}
+
+
 static void
 print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
 {
@@ -251,25 +265,6 @@ print_res(struct html *h, const char *p, size_t len)
 }
 
 
-struct tag *
-print_ofont(struct html *h, enum htmlfont font)
-{
-       struct htmlpair  tag;
-
-       h->metal = h->metac;
-       h->metac = font;
-
-       /* 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)
 {
@@ -293,7 +288,18 @@ print_metaf(struct html *h, enum roffdeco deco)
                /* NOTREACHED */
        }
 
-       (void)print_ofont(h, font);
+       if (h->metaf) {
+               print_tagq(h, h->metaf);
+               h->metaf = NULL;
+       }
+
+       h->metal = h->metac;
+       h->metac = font;
+
+       if (HTMLFONT_NONE != font)
+               h->metaf = HTMLFONT_BOLD == font ?
+                       print_otag(h, TAG_B, 0, NULL) :
+                       print_otag(h, TAG_I, 0, NULL);
 }
 
 
@@ -340,6 +346,9 @@ print_encode(struct html *h, const char *p, int norecurse)
                len = a2roffdeco(&deco, &seq, &sz);
 
                switch (deco) {
+               case (DECO_NUMBERED):
+                       print_num(h, seq, sz);
+                       break;
                case (DECO_RESERVED):
                        print_res(h, seq, sz);
                        break;
@@ -447,6 +456,10 @@ print_otag(struct html *h, enum htmltag tag,
        putchar('>');
 
        h->flags |= HTML_NOSPACE;
+
+       if ((HTML_AUTOCLOSE | HTML_CLRLINE) & htmltags[tag].flags)
+               putchar('\n');
+
        return(t);
 }
 
@@ -477,7 +490,7 @@ print_xmltype(struct html *h)
 {
 
        if (HTML_XHTML_1_0_STRICT == h->type)
-               printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+               puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
 }
 
 
@@ -544,11 +557,22 @@ print_text(struct html *h, const char *word)
                        printf("&#160;");
        }
 
+       assert(NULL == h->metaf);
+       if (HTMLFONT_NONE != h->metac)
+               h->metaf = HTMLFONT_BOLD == h->metac ?
+                       print_otag(h, TAG_B, 0, NULL) :
+                       print_otag(h, TAG_I, 0, NULL);
+
        assert(word);
        if ( ! print_encode(h, word, 0))
                if ( ! (h->flags & HTML_NONOSPACE))
                        h->flags &= ~HTML_NOSPACE;
 
+       if (h->metaf) {
+               print_tagq(h, h->metaf);
+               h->metaf = NULL;
+       }
+
        h->flags &= ~HTML_IGNDELIM;
 
        /* 
@@ -574,8 +598,14 @@ print_tagq(struct html *h, const struct tag *until)
        struct tag      *tag;
 
        while ((tag = h->tags.head) != NULL) {
+               /* 
+                * Remember to close out and nullify the current
+                * meta-font and table, if applicable.
+                */
                if (tag == h->metaf)
                        h->metaf = NULL;
+               if (tag == h->tblt)
+                       h->tblt = NULL;
                print_ctag(h, tag->tag);
                h->tags.head = tag->next;
                free(tag);
@@ -593,8 +623,14 @@ print_stagq(struct html *h, const struct tag *suntil)
        while ((tag = h->tags.head) != NULL) {
                if (suntil && tag == suntil)
                        return;
+               /* 
+                * Remember to close out and nullify the current
+                * meta-font and table, if applicable.
+                */
                if (tag == h->metaf)
                        h->metaf = NULL;
+               if (tag == h->tblt)
+                       h->tblt = NULL;
                print_ctag(h, tag->tag);
                h->tags.head = tag->next;
                free(tag);
@@ -764,20 +800,24 @@ html_idcat(char *dst, const char *src, int sz)
 {
        int              ssz;
 
-       assert(sz);
+       assert(sz > 2);
 
        /* 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--;
+       if ('#' == *dst) {
+               dst++;
+               sz--;
+       }
+       if ('\0' == *dst) {
+               *dst++ = 'x';
+               *dst = '\0';
+               sz--;
+       }
+
+       for ( ; *dst != '\0' && sz; dst++, sz--)
+               /* Jump to end. */ ;
 
        for ( ; *src != '\0' && sz > 1; src++) {
                ssz = snprintf(dst, (size_t)sz, "%.2x", *src);