===================================================================
RCS file: /cvs/mandoc/html.c,v
retrieving revision 1.206
retrieving revision 1.215
diff -u -p -r1.206 -r1.215
--- mandoc/html.c	2017/02/05 19:29:19	1.206
+++ mandoc/html.c	2017/06/23 02:32:12	1.215
@@ -1,4 +1,4 @@
-/*	$Id: html.c,v 1.206 2017/02/05 19:29:19 schwarze Exp $ */
+/*	$Id: html.c,v 1.215 2017/06/23 02:32:12 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -28,8 +28,9 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "mandoc.h"
 #include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
 #include "out.h"
 #include "html.h"
 #include "manconf.h"
@@ -76,6 +77,7 @@ static	const struct htmldata htmltags[TAG_MAX] = {
 	{"dt",		HTML_NLAROUND},
 	{"dd",		HTML_NLAROUND | HTML_INDENT},
 	{"pre",		HTML_NLALL | HTML_NOINDENT},
+	{"var",		0},
 	{"cite",	0},
 	{"b",		0},
 	{"i",		0},
@@ -85,6 +87,7 @@ static	const struct htmldata htmltags[TAG_MAX] = {
 	{"math",	HTML_NLALL | HTML_INDENT},
 	{"mrow",	0},
 	{"mi",		0},
+	{"mn",		0},
 	{"mo",		0},
 	{"msup",	0},
 	{"msub",	0},
@@ -235,6 +238,28 @@ print_metaf(struct html *h, enum mandoc_esc deco)
 	}
 }
 
+char *
+html_make_id(const struct roff_node *n)
+{
+	const struct roff_node	*nch;
+	char			*buf, *cp;
+
+	for (nch = n->child; nch != NULL; nch = nch->next)
+		if (nch->type != ROFFT_TEXT)
+			return NULL;
+
+	buf = NULL;
+	deroff(&buf, n);
+
+	/* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
+
+	for (cp = buf; *cp != '\0'; cp++)
+		if (*cp == ' ')
+			*cp = '_';
+
+	return buf;
+}
+
 int
 html_strlen(const char *cp)
 {
@@ -321,16 +346,18 @@ static int
 print_encode(struct html *h, const char *p, const char *pend, int norecurse)
 {
 	char		 numbuf[16];
-	size_t		 sz;
-	int		 c, len, nospace;
+	struct tag	*t;
 	const char	*seq;
+	size_t		 sz;
+	int		 c, len, breakline, nospace;
 	enum mandoc_esc	 esc;
-	static const char rejs[9] = { '\\', '<', '>', '&', '"',
+	static const char rejs[10] = { ' ', '\\', '<', '>', '&', '"',
 		ASCII_NBRSP, ASCII_HYPH, ASCII_BREAK, '\0' };
 
 	if (pend == NULL)
 		pend = strchr(p, '\0');
 
+	breakline = 0;
 	nospace = 0;
 
 	while (p < pend) {
@@ -341,14 +368,28 @@ print_encode(struct html *h, const char *p, const char
 		}
 
 		for (sz = strcspn(p, rejs); sz-- && p < pend; p++)
-			if (*p == ' ')
-				print_endword(h);
-			else
-				print_byte(h, *p);
+			print_byte(h, *p);
 
+		if (breakline &&
+		    (p >= pend || *p == ' ' || *p == ASCII_NBRSP)) {
+			t = print_otag(h, TAG_DIV, "");
+			print_text(h, "\\~");
+			print_tagq(h, t);
+			breakline = 0;
+			while (p < pend && (*p == ' ' || *p == ASCII_NBRSP))
+				p++;
+			continue;
+		}
+
 		if (p >= pend)
 			break;
 
+		if (*p == ' ') {
+			print_endword(h);
+			p++;
+			continue;
+		}
+
 		if (print_escape(h, *p++))
 			continue;
 
@@ -393,6 +434,9 @@ print_encode(struct html *h, const char *p, const char
 			if (c <= 0)
 				continue;
 			break;
+		case ESCAPE_BREAK:
+			breakline = 1;
+			continue;
 		case ESCAPE_NOSPACE:
 			if ('\0' == *p)
 				nospace = 1;
@@ -533,18 +577,25 @@ print_otag(struct html *h, enum htmltag tag, const cha
 		print_byte(h, '=');
 		print_byte(h, '"');
 		switch (*fmt) {
-		case 'M':
-			print_href(h, arg1, arg2, 1);
-			fmt++;
-			break;
 		case 'I':
 			print_href(h, arg1, NULL, 0);
 			fmt++;
 			break;
+		case 'M':
+			print_href(h, arg1, arg2, 1);
+			fmt++;
+			break;
 		case 'R':
 			print_byte(h, '#');
+			print_encode(h, arg1, NULL, 1);
 			fmt++;
-			/* FALLTHROUGH */
+			break;
+		case 'T':
+			print_encode(h, arg1, NULL, 1);
+			print_word(h, "\" title=\"");
+			print_encode(h, arg1, NULL, 1);
+			fmt++;
+			break;
 		default:
 			print_encode(h, arg1, NULL, 1);
 			break;
@@ -578,13 +629,21 @@ print_otag(struct html *h, enum htmltag tag, const cha
 			SCALE_VS_INIT(su, i);
 			break;
 		case 'w':
-		case 'W':
 			if ((arg2 = va_arg(ap, char *)) == NULL)
 				break;
 			su = &mysu;
 			a2width(arg2, su);
-			if (fmt[-1] == 'W')
+			if (*fmt == '+') {
+				/* Increase to make even bold text fit. */
+				su->scale *= 1.2;
+				/* Add padding. */
+				su->scale += 3.0;
+				fmt++;
+			}
+			if (*fmt == '-') {
 				su->scale *= -1.0;
+				fmt++;
+			}
 			break;
 		default:
 			abort();
@@ -911,7 +970,10 @@ print_word(struct html *h, const char *cp)
 static void
 a2width(const char *p, struct roffsu *su)
 {
-	if (a2roffsu(p, su, SCALE_MAX) < 2) {
+	const char	*end;
+
+	end = a2roffsu(p, su, SCALE_MAX);
+	if (end == NULL || *end != '\0') {
 		su->unit = SCALE_EN;
 		su->scale = html_strlen(p);
 	} else if (su->scale < 0.0)