Support for maxrmargin-breaking with TERMP_NOBREAK.

Tabs auto-converted to spaces.

5 files changed, 47 insertions, 7 deletions

diff --git a/mdoc.h b/mdoc.h
index 8b7dea49..8b8ca2a2 100644
--- a/mdoc.h
+++ b/mdoc.h
@@ -220,6 +220,7 @@ enum	mdoc_att {
 	ATT_v6,
 	ATT_v7,
 	ATT_32v,
+	ATT_V,
 	ATT_V1,
 	ATT_V2,
 	ATT_V3,
diff --git a/mdocterm.c b/mdocterm.c
index 52c46551..98ad4cd3 100644
--- a/mdocterm.c
+++ b/mdocterm.c
@@ -85,6 +85,7 @@ static	void		  footer(struct termp *,
 static	void		  pword(struct termp *, const char *, size_t);
 static	void		  pescape(struct termp *, 
 				const char *, size_t *, size_t);
+static	void		  pgraph(struct termp *, char);
 static	void		  nescape(struct termp *, 
 				const char *, size_t);
 static	void		  chara(struct termp *, char);
@@ -199,7 +200,8 @@ flushln(struct termp *p)
 		 *
 		 * If we're not breaking...
 		 *
-		 * Don't let the visible size exceed the full margin.
+		 * Don't let the visible size exceed the full right
+		 * margin.
 		 */
 
 		if ( ! (TERMP_NOBREAK & p->flags)) {
@@ -210,8 +212,12 @@ flushln(struct termp *p)
 				vis = 0;
 			} else if (vis + vsz > maxvis)
 				errx(1, "word breaks right margin");
-		} else if (vis + vsz > p->maxrmargin)
-			errx(1, "word breaks right margin");
+		} else if (vis + vsz > p->maxrmargin - p->offset) {
+			putchar('\n');
+			for (j = 0; j < p->rmargin; j++)
+				putchar(' ');
+			vis = p->rmargin;
+		}
 
 		/* 
 		 * Write out the word and a trailing space.  Omit the
@@ -425,6 +431,26 @@ nescape(struct termp *p, const char *word, size_t len)
 
 
 static void
+pgraph(struct termp *p, char byte)
+{
+	int		 i;
+
+	switch (byte) {
+	case (' '):
+		chara(p, ' ');
+		break;
+	case ('\t'):
+		for (i = 0; i < INDENT; i++)
+			chara(p, ' ');
+		break;
+	default:
+		warnx("unknown non-graphing character");
+		break;
+	}
+}
+
+
+static void
 pescape(struct termp *p, const char *word, size_t *i, size_t len)
 {
 	size_t		 j;
@@ -527,6 +553,10 @@ pword(struct termp *p, const char *word, size_t len)
 			pescape(p, word, &i, len);
 			continue;
 		}
+		if ( ! isgraph((int)word[i])) {
+			pgraph(p, word[i]);
+			continue;
+		}
 		chara(p, word[i]);
 	}
 
diff --git a/strings.c b/strings.c
index 493ab96b..1abe92da 100644
--- a/strings.c
+++ b/strings.c
@@ -358,6 +358,8 @@ mdoc_atoatt(const char *p)
 		return(ATT_v7);
 	else if (0 == strcmp(p, "32v"))
 		return(ATT_32v);
+	else if (0 == strcmp(p, "V"))
+		return(ATT_V);
 	else if (0 == strcmp(p, "V.1"))
 		return(ATT_V1);
 	else if (0 == strcmp(p, "V.2"))
@@ -719,6 +721,9 @@ mdoc_att2a(enum mdoc_att c)
 	case(ATT_32v):
 		p = "Version 32V AT&T UNIX";
 		break;
+	case(ATT_V):
+		p = "AT&T System V UNIX";
+		break;
 	case(ATT_V1):
 		p = "AT&T System V.1 UNIX";
 		break;
diff --git a/term.c b/term.c
index 66a967b2..d742795b 100644
--- a/term.c
+++ b/term.c
@@ -25,8 +25,6 @@
 
 #include "term.h"
 
-#define	INDENT		  6
-
 /*
  * Performs actions on nodes of the abstract syntax tree.  Both pre- and
  * post-fix operations are defined here.
@@ -934,6 +932,9 @@ static int
 termp_ft_pre(DECL_ARGS)
 {
 
+	if (SEC_SYNOPSIS == node->sec)
+		if (node->prev && MDOC_Fo == node->prev->tok)
+			vspace(p);
 	TERMPAIR_SETFLAG(p, pair, ttypes[TTYPE_FUNC_TYPE]);
 	return(1);
 }
@@ -944,7 +945,7 @@ static void
 termp_ft_post(DECL_ARGS)
 {
 
-	if (node->sec == SEC_SYNOPSIS)
+	if (SEC_SYNOPSIS == node->sec)
 		newln(p);
 }
 
@@ -1141,7 +1142,8 @@ static void
 termp_bx_post(DECL_ARGS)
 {
 
-	p->flags |= TERMP_NOSPACE;
+	if (node->child)
+		p->flags |= TERMP_NOSPACE;
 	word(p, "BSD");
 }
 
diff --git a/term.h b/term.h
index 17e2d02c..f603d351 100644
--- a/term.h
+++ b/term.h
@@ -21,6 +21,8 @@
 
 #include "mdoc.h"
 
+#define	INDENT		  6
+
 __BEGIN_DECLS
 
 struct	termp {