Sync to bsd.lv; in particular, pull in lots of bug fixes.

new features:
* support the .in macro in man(7)
* support minimal PDF output
* support .Sm in mdoc(7) HTML output
* support .Vb and .nf in man(7) HTML output
* complete the mdoc(7) manual
bug fixes:
* do not let mdoc(7) .Pp produce a newline before/after .Sh; reported by jmc@
* avoid double blank lines related to man(7) .sp and .br
* let man(7) .nf and .fi flush the line; reported by jsg@ and naddy@
* let "\ " produce a non-breaking space; reported by deraadt@
* discard \m colour escape sequences; reported by J.C. Roberts
* map undefined 1-character-escapes to the literal character itself
maintenance:
* express mdoc(7) arguments in terms of an enum for additional type-safety
* simplify mandoc_special() and a2roffdeco()
* use strcspn in term_word() in place of a manual loop
* minor optimisations in the -Tps and -Thtml formatting frontends

1 files changed, 31 insertions, 13 deletions

diff --git a/usr.bin/mandoc/html.c b/usr.bin/mandoc/html.c
index 16cdb29fd8e..eb9ebda5be3 100644
--- a/usr.bin/mandoc/html.c
+++ b/usr.bin/mandoc/html.c
@@ -1,4 +1,4 @@
-/*	$Id: html.c,v 1.12 2010/07/13 01:09:12 schwarze Exp $ */
+/*	$Id: html.c,v 1.13 2010/07/25 18:05:54 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -84,7 +84,8 @@ static	const char	*const htmlattrs[ATTR_MAX] = {
 	"summary",
 };
 
-static	void		  print_spec(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);
 static	void		  print_ctag(struct html *, enum htmltag);
 static	void		  print_doctype(struct html *);
@@ -211,30 +212,41 @@ print_gen_head(struct html *h)
 
 
 static void
-print_spec(struct html *h, const char *p, size_t len)
+print_spec(struct html *h, enum roffdeco d, const char *p, size_t len)
 {
+	int		 cp;
 	const char	*rhs;
 	size_t		 sz;
 
-	rhs = chars_a2ascii(h->symtab, p, len, &sz);
-
-	if (NULL == rhs) 
+	if ((cp = chars_spec2cp(h->symtab, p, len)) > 0) {
+		printf("&#%d;", cp);
+		return;
+	} else if (-1 == cp && DECO_SSPECIAL == d) {
+		fwrite(p, 1, len, stdout);
+		return;
+	} else if (-1 == cp)
 		return;
-	fwrite(rhs, 1, sz, stdout);
+
+	if (NULL != (rhs = chars_spec2str(h->symtab, p, len, &sz)))
+		fwrite(rhs, 1, sz, stdout);
 }
 
 
 static void
 print_res(struct html *h, const char *p, size_t len)
 {
+	int		 cp;
 	const char	*rhs;
 	size_t		 sz;
 
-	rhs = chars_a2res(h->symtab, p, len, &sz);
-
-	if (NULL == rhs)
+	if ((cp = chars_res2cp(h->symtab, p, len)) > 0) {
+		printf("&#%d;", cp);
+		return;
+	} else if (-1 == cp)
 		return;
-	fwrite(rhs, 1, sz, stdout);
+
+	if (NULL != (rhs = chars_res2str(h->symtab, p, len, &sz)))
+		fwrite(rhs, 1, sz, stdout);
 }
 
 
@@ -330,8 +342,10 @@ print_encode(struct html *h, const char *p, int norecurse)
 		case (DECO_RESERVED):
 			print_res(h, seq, sz);
 			break;
+		case (DECO_SSPECIAL):
+			/* FALLTHROUGH */
 		case (DECO_SPECIAL):
-			print_spec(h, seq, sz);
+			print_spec(h, deco, seq, sz);
 			break;
 		case (DECO_PREVIOUS):
 			/* FALLTHROUGH */
@@ -399,6 +413,9 @@ print_otag(struct html *h, enum htmltag tag,
 				printf("&#160;");
 		}
 
+	if ( ! (h->flags & HTML_NONOSPACE))
+		h->flags &= ~HTML_NOSPACE;
+
 	/* Print out the tag name and attributes. */
 
 	printf("<%s", htmltags[tag].name);
@@ -526,7 +543,8 @@ print_text(struct html *h, const char *word)
 
 	assert(word);
 	if ( ! print_encode(h, word, 0))
-		h->flags &= ~HTML_NOSPACE;
+		if ( ! (h->flags & HTML_NONOSPACE))
+			h->flags &= ~HTML_NOSPACE;
 
 	/* 
 	 * Note that we don't process the pipe: the parser sees it as