===================================================================
RCS file: /cvs/mandoc/man_term.c,v
retrieving revision 1.76
retrieving revision 1.93
diff -u -p -r1.76 -r1.93
--- mandoc/man_term.c	2010/06/19 20:46:28	1.76
+++ mandoc/man_term.c	2011/01/03 15:30:25	1.93
@@ -1,6 +1,6 @@
-/*	$Id: man_term.c,v 1.76 2010/06/19 20:46:28 kristaps Exp $ */
+/*	$Id: man_term.c,v 1.93 2011/01/03 15:30:25 kristaps Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
+ * 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
@@ -70,8 +70,8 @@ struct	termact {
 #define	MAN_NOTEXT	 (1 << 0) /* Never has text children. */
 };
 
-static	int		  a2width(const struct man_node *);
-static	int		  a2height(const struct man_node *);
+static	int		  a2width(const struct termp *, const char *);
+static	size_t		  a2height(const struct termp *, const char *);
 
 static	void		  print_man_nodelist(DECL_ARGS);
 static	void		  print_man_node(DECL_ARGS);
@@ -80,23 +80,21 @@ static	void		  print_man_foot(struct termp *, const vo
 static	void		  print_bvspace(struct termp *, 
 				const struct man_node *);
 
+static	int		  pre_alternate(DECL_ARGS);
 static	int		  pre_B(DECL_ARGS);
-static	int		  pre_BI(DECL_ARGS);
 static	int		  pre_HP(DECL_ARGS);
 static	int		  pre_I(DECL_ARGS);
 static	int		  pre_IP(DECL_ARGS);
 static	int		  pre_PP(DECL_ARGS);
-static	int		  pre_RB(DECL_ARGS);
-static	int		  pre_RI(DECL_ARGS);
 static	int		  pre_RS(DECL_ARGS);
 static	int		  pre_SH(DECL_ARGS);
 static	int		  pre_SS(DECL_ARGS);
 static	int		  pre_TP(DECL_ARGS);
-static	int		  pre_br(DECL_ARGS);
-static	int		  pre_fi(DECL_ARGS);
 static	int		  pre_ign(DECL_ARGS);
-static	int		  pre_nf(DECL_ARGS);
+static	int		  pre_in(DECL_ARGS);
+static	int		  pre_literal(DECL_ARGS);
 static	int		  pre_sp(DECL_ARGS);
+static	int		  pre_ft(DECL_ARGS);
 
 static	void		  post_IP(DECL_ARGS);
 static	void		  post_HP(DECL_ARGS);
@@ -106,7 +104,7 @@ static	void		  post_SS(DECL_ARGS);
 static	void		  post_TP(DECL_ARGS);
 
 static	const struct termact termacts[MAN_MAX] = {
-	{ pre_br, NULL, MAN_NOTEXT }, /* br */
+	{ pre_sp, NULL, MAN_NOTEXT }, /* br */
 	{ NULL, NULL, 0 }, /* TH */
 	{ pre_SH, post_SH, 0 }, /* SH */
 	{ pre_SS, post_SS, 0 }, /* SS */
@@ -118,30 +116,27 @@ static	const struct termact termacts[MAN_MAX] = {
 	{ pre_HP, post_HP, 0 }, /* HP */ 
 	{ NULL, NULL, 0 }, /* SM */
 	{ pre_B, NULL, 0 }, /* SB */
-	{ pre_BI, NULL, 0 }, /* BI */
-	{ pre_BI, NULL, 0 }, /* IB */
-	{ pre_RB, NULL, 0 }, /* BR */
-	{ pre_RB, NULL, 0 }, /* RB */
+	{ pre_alternate, NULL, 0 }, /* BI */
+	{ pre_alternate, NULL, 0 }, /* IB */
+	{ pre_alternate, NULL, 0 }, /* BR */
+	{ pre_alternate, NULL, 0 }, /* RB */
 	{ NULL, NULL, 0 }, /* R */
 	{ pre_B, NULL, 0 }, /* B */
 	{ pre_I, NULL, 0 }, /* I */
-	{ pre_RI, NULL, 0 }, /* IR */
-	{ pre_RI, NULL, 0 }, /* RI */
+	{ pre_alternate, NULL, 0 }, /* IR */
+	{ pre_alternate, NULL, 0 }, /* RI */
 	{ NULL, NULL, MAN_NOTEXT }, /* na */
-	{ pre_I, NULL, 0 }, /* i */
 	{ pre_sp, NULL, MAN_NOTEXT }, /* sp */
-	{ pre_nf, NULL, 0 }, /* nf */
-	{ pre_fi, NULL, 0 }, /* fi */
-	{ NULL, NULL, 0 }, /* r */
+	{ pre_literal, NULL, 0 }, /* nf */
+	{ pre_literal, NULL, 0 }, /* fi */
 	{ NULL, NULL, 0 }, /* RE */
 	{ pre_RS, post_RS, 0 }, /* RS */
 	{ pre_ign, NULL, 0 }, /* DT */
 	{ pre_ign, NULL, 0 }, /* UC */
 	{ pre_ign, NULL, 0 }, /* PD */
- 	{ pre_sp, NULL, MAN_NOTEXT }, /* Sp */
- 	{ pre_nf, NULL, 0 }, /* Vb */
- 	{ pre_fi, NULL, 0 }, /* Ve */
 	{ pre_ign, NULL, 0 }, /* AT */
+	{ pre_in, NULL, MAN_NOTEXT }, /* in */
+	{ pre_ft, NULL, MAN_NOTEXT }, /* ft */
 };
 
 
@@ -158,7 +153,7 @@ terminal_man(void *arg, const struct man *man)
 
 	p->overstep = 0;
 	p->maxrmargin = p->defrmargin;
-	p->tabwidth = 5;
+	p->tabwidth = term_len(p, 5);
 
 	if (NULL == p->symtab)
 		switch (p->enc) {
@@ -177,8 +172,8 @@ terminal_man(void *arg, const struct man *man)
 	p->flags |= TERMP_NOSPACE;
 
 	mt.fl = 0;
-	mt.lmargin = INDENT;
-	mt.offset = INDENT;
+	mt.lmargin = term_len(p, INDENT);
+	mt.offset = term_len(p, INDENT);
 
 	if (n->child)
 		print_man_nodelist(p, &mt, n->child, m);
@@ -187,31 +182,27 @@ terminal_man(void *arg, const struct man *man)
 }
 
 
-static int
-a2height(const struct man_node *n)
+static size_t
+a2height(const struct termp *p, const char *cp)
 {
 	struct roffsu	 su;
 
-	assert(MAN_TEXT == n->type);
-	assert(n->string);
-	if ( ! a2roffsu(n->string, &su, SCALE_VS))
-		SCALE_VS_INIT(&su, strlen(n->string));
+	if ( ! a2roffsu(cp, &su, SCALE_VS))
+		SCALE_VS_INIT(&su, term_strlen(p, cp));
 
-	return((int)term_vspan(&su));
+	return(term_vspan(p, &su));
 }
 
 
 static int
-a2width(const struct man_node *n)
+a2width(const struct termp *p, const char *cp)
 {
 	struct roffsu	 su;
 
-	assert(MAN_TEXT == n->type);
-	assert(n->string);
-	if ( ! a2roffsu(n->string, &su, SCALE_BU))
+	if ( ! a2roffsu(cp, &su, SCALE_BU))
 		return(-1);
 
-	return((int)term_hspan(&su));
+	return((int)term_hspan(p, &su));
 }
 
 
@@ -253,105 +244,159 @@ pre_I(DECL_ARGS)
 
 /* ARGSUSED */
 static int
-pre_fi(DECL_ARGS)
+pre_literal(DECL_ARGS)
 {
 
-	mt->fl &= ~MANT_LITERAL;
-	return(1);
-}
+	term_newln(p);
 
+	if (MAN_nf == n->tok)
+		mt->fl |= MANT_LITERAL;
+	else
+		mt->fl &= ~MANT_LITERAL;
 
-/* ARGSUSED */
-static int
-pre_nf(DECL_ARGS)
-{
-
-	mt->fl |= MANT_LITERAL;
-	return(MAN_Vb != n->tok);
+	return(1);
 }
 
-
 /* ARGSUSED */
 static int
-pre_RB(DECL_ARGS)
+pre_alternate(DECL_ARGS)
 {
-	const struct man_node *nn;
-	int		 i;
+	enum termfont		 font[2];
+	const struct man_node	*nn;
+	int			 savelit, i;
 
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2 && MAN_RB == n->tok)
-			term_fontrepl(p, TERMFONT_BOLD);
-		else if ( ! (i % 2) && MAN_RB != n->tok)
-			term_fontrepl(p, TERMFONT_BOLD);
-		else
-			term_fontrepl(p, TERMFONT_NONE);
+	switch (n->tok) {
+	case (MAN_RB):
+		font[0] = TERMFONT_NONE;
+		font[1] = TERMFONT_BOLD;
+		break;
+	case (MAN_RI):
+		font[0] = TERMFONT_NONE;
+		font[1] = TERMFONT_UNDER;
+		break;
+	case (MAN_BR):
+		font[0] = TERMFONT_BOLD;
+		font[1] = TERMFONT_NONE;
+		break;
+	case (MAN_BI):
+		font[0] = TERMFONT_BOLD;
+		font[1] = TERMFONT_UNDER;
+		break;
+	case (MAN_IR):
+		font[0] = TERMFONT_UNDER;
+		font[1] = TERMFONT_NONE;
+		break;
+	case (MAN_IB):
+		font[0] = TERMFONT_UNDER;
+		font[1] = TERMFONT_BOLD;
+		break;
+	default:
+		abort();
+	}
 
-		if (i > 0)
-			p->flags |= TERMP_NOSPACE;
+	savelit = MANT_LITERAL & mt->fl;
+	mt->fl &= ~MANT_LITERAL;
 
+	for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
+		term_fontrepl(p, font[i]);
+		if (savelit && NULL == nn->next)
+			mt->fl |= MANT_LITERAL;
 		print_man_node(p, mt, nn, m);
+		if (nn->next)
+			p->flags |= TERMP_NOSPACE;
 	}
+
 	return(0);
 }
 
-
 /* ARGSUSED */
 static int
-pre_RI(DECL_ARGS)
+pre_B(DECL_ARGS)
 {
-	const struct man_node *nn;
-	int		 i;
 
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2 && MAN_RI == n->tok)
-			term_fontrepl(p, TERMFONT_UNDER);
-		else if ( ! (i % 2) && MAN_RI != n->tok)
-			term_fontrepl(p, TERMFONT_UNDER);
-		else
-			term_fontrepl(p, TERMFONT_NONE);
-
-		if (i > 0)
-			p->flags |= TERMP_NOSPACE;
-
-		print_man_node(p, mt, nn, m);
-	}
-	return(0);
+	term_fontrepl(p, TERMFONT_BOLD);
+	return(1);
 }
 
-
 /* ARGSUSED */
 static int
-pre_BI(DECL_ARGS)
+pre_ft(DECL_ARGS)
 {
-	const struct man_node	*nn;
-	int			 i;
+	const char	*cp;
 
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2 && MAN_BI == n->tok)
-			term_fontrepl(p, TERMFONT_UNDER);
-		else if (i % 2)
-			term_fontrepl(p, TERMFONT_BOLD);
-		else if (MAN_BI == n->tok)
-			term_fontrepl(p, TERMFONT_BOLD);
-		else
-			term_fontrepl(p, TERMFONT_UNDER);
+	if (NULL == n->child) {
+		term_fontlast(p);
+		return(0);
+	}
 
-		if (i)
-			p->flags |= TERMP_NOSPACE;
-
-		print_man_node(p, mt, nn, m);
+	cp = n->child->string;
+	switch (*cp) {
+	case ('4'):
+		/* FALLTHROUGH */
+	case ('3'):
+		/* FALLTHROUGH */
+	case ('B'):
+		term_fontrepl(p, TERMFONT_BOLD);
+		break;
+	case ('2'):
+		/* FALLTHROUGH */
+	case ('I'):
+		term_fontrepl(p, TERMFONT_UNDER);
+		break;
+	case ('P'):
+		term_fontlast(p);
+		break;
+	case ('1'):
+		/* FALLTHROUGH */
+	case ('C'):
+		/* FALLTHROUGH */
+	case ('R'):
+		term_fontrepl(p, TERMFONT_NONE);
+		break;
+	default:
+		break;
 	}
 	return(0);
 }
 
-
 /* ARGSUSED */
 static int
-pre_B(DECL_ARGS)
+pre_in(DECL_ARGS)
 {
+	int		 len, less;
+	size_t		 v;
+	const char	*cp;
 
-	term_fontrepl(p, TERMFONT_BOLD);
-	return(1);
+	term_newln(p);
+
+	if (NULL == n->child) {
+		p->offset = mt->offset;
+		return(0);
+	}
+
+	cp = n->child->string;
+	less = 0;
+
+	if ('-' == *cp)
+		less = -1;
+	else if ('+' == *cp)
+		less = 1;
+	else
+		cp--;
+
+	if ((len = a2width(p, ++cp)) < 0)
+		return(0);
+
+	v = (size_t)len;
+
+	if (less < 0)
+		p->offset -= p->offset > v ? v : p->offset;
+	else if (less > 0)
+		p->offset += v;
+	else 
+		p->offset = v;
+
+	return(0);
 }
 
 
@@ -359,13 +404,20 @@ pre_B(DECL_ARGS)
 static int
 pre_sp(DECL_ARGS)
 {
-	int		 i, len;
+	size_t		 i, len;
 
-	len = n->child ? a2height(n->child) : 1;
+	switch (n->tok) {
+	case (MAN_br):
+		len = 0;
+		break;
+	default:
+		len = n->child ? a2height(p, n->child->string) : 1;
+		break;
+	}
 
 	if (0 == len)
 		term_newln(p);
-	for (i = 0; i <= len; i++)
+	for (i = 0; i < len; i++)
 		term_vspace(p);
 
 	return(0);
@@ -374,16 +426,6 @@ pre_sp(DECL_ARGS)
 
 /* ARGSUSED */
 static int
-pre_br(DECL_ARGS)
-{
-
-	term_newln(p);
-	return(0);
-}
-
-
-/* ARGSUSED */
-static int
 pre_HP(DECL_ARGS)
 {
 	size_t			 len;
@@ -408,11 +450,11 @@ pre_HP(DECL_ARGS)
 	/* Calculate offset. */
 
 	if (NULL != (nn = n->parent->head->child))
-		if ((ival = a2width(nn)) >= 0)
+		if ((ival = a2width(p, nn->string)) >= 0)
 			len = (size_t)ival;
 
 	if (0 == len)
-		len = 1;
+		len = term_len(p, 1);
 
 	p->offset = mt->offset;
 	p->rmargin = mt->offset + len;
@@ -453,7 +495,7 @@ pre_PP(DECL_ARGS)
 
 	switch (n->type) {
 	case (MAN_BLOCK):
-		mt->lmargin = INDENT;
+		mt->lmargin = term_len(p, INDENT);
 		print_bvspace(p, n);
 		break;
 	default:
@@ -461,7 +503,7 @@ pre_PP(DECL_ARGS)
 		break;
 	}
 
-	return(1);
+	return(MAN_HEAD != n->type);
 }
 
 
@@ -497,7 +539,7 @@ pre_IP(DECL_ARGS)
 		if (NULL != (nn = nn->next)) {
 			for ( ; nn->next; nn = nn->next)
 				/* Do nothing. */ ;
-			if ((ival = a2width(nn)) >= 0)
+			if ((ival = a2width(p, nn->string)) >= 0)
 				len = (size_t)ival;
 		}
 
@@ -505,7 +547,7 @@ pre_IP(DECL_ARGS)
 	case (MAN_HEAD):
 		/* Handle zero-width lengths. */
 		if (0 == len)
-			len = 1;
+			len = term_len(p, 1);
 
 		p->offset = mt->offset;
 		p->rmargin = mt->offset + len;
@@ -585,7 +627,7 @@ pre_TP(DECL_ARGS)
 		while (nn && MAN_TEXT != nn->type)
 			nn = nn->next;
 		if (nn && nn->next)
-			if ((ival = a2width(nn)) >= 0)
+			if ((ival = a2width(p, nn->string)) >= 0)
 				len = (size_t)ival;
 	}
 
@@ -593,7 +635,7 @@ pre_TP(DECL_ARGS)
 	case (MAN_HEAD):
 		/* Handle zero-length properly. */
 		if (0 == len)
-			len = 1;
+			len = term_len(p, 1);
 
 		p->offset = mt->offset;
 		p->rmargin = mt->offset + len;
@@ -648,8 +690,8 @@ pre_SS(DECL_ARGS)
 
 	switch (n->type) {
 	case (MAN_BLOCK):
-		mt->lmargin = INDENT;
-		mt->offset = INDENT;
+		mt->lmargin = term_len(p, INDENT);
+		mt->offset = term_len(p, INDENT);
 		/* If following a prior empty `SS', no vspace. */
 		if (n->prev && MAN_SS == n->prev->tok)
 			if (NULL == n->prev->body->child)
@@ -660,7 +702,7 @@ pre_SS(DECL_ARGS)
 		break;
 	case (MAN_HEAD):
 		term_fontrepl(p, TERMFONT_BOLD);
-		p->offset = HALFINDENT;
+		p->offset = term_len(p, HALFINDENT);
 		break;
 	case (MAN_BODY):
 		p->offset = mt->offset;
@@ -698,8 +740,8 @@ pre_SH(DECL_ARGS)
 
 	switch (n->type) {
 	case (MAN_BLOCK):
-		mt->lmargin = INDENT;
-		mt->offset = INDENT;
+		mt->lmargin = term_len(p, INDENT);
+		mt->offset = term_len(p, INDENT);
 		/* If following a prior empty `SH', no vspace. */
 		if (n->prev && MAN_SH == n->prev->tok)
 			if (NULL == n->prev->body->child)
@@ -760,15 +802,15 @@ pre_RS(DECL_ARGS)
 	}
 
 	if (NULL == (nn = n->parent->head->child)) {
-		mt->offset = mt->lmargin + INDENT;
+		mt->offset = mt->lmargin + term_len(p, INDENT);
 		p->offset = mt->offset;
 		return(1);
 	}
 
-	if ((ival = a2width(nn)) < 0)
+	if ((ival = a2width(p, nn->string)) < 0)
 		return(1);
 
-	mt->offset = INDENT + (size_t)ival;
+	mt->offset = term_len(p, INDENT) + (size_t)ival;
 	p->offset = mt->offset;
 
 	return(1);
@@ -782,13 +824,13 @@ post_RS(DECL_ARGS)
 
 	switch (n->type) {
 	case (MAN_BLOCK):
-		mt->offset = mt->lmargin = INDENT;
+		mt->offset = mt->lmargin = term_len(p, INDENT);
 		break;
 	case (MAN_HEAD):
 		break;
 	default:
 		term_newln(p);
-		p->offset = INDENT;
+		p->offset = term_len(p, INDENT);
 		break;
 	}
 }
@@ -823,6 +865,11 @@ print_man_node(DECL_ARGS)
 			p->maxrmargin = rmax;
 		}
 		break;
+	case (MAN_TBL):
+		if (TBL_SPAN_FIRST & n->span->flags) 
+			term_newln(p);
+		term_tbl(p, n->span);
+		break;
 	default:
 		if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
 			term_fontrepl(p, TERMFONT_NONE);
@@ -834,11 +881,17 @@ print_man_node(DECL_ARGS)
 	if (c && n->child)
 		print_man_nodelist(p, mt, n->child, m);
 
-	if (MAN_TEXT != n->type) {
+	switch (n->type) {
+	case (MAN_TEXT):
+		/* FALLTHROUGH */
+	case (MAN_TBL):
+		break;
+	default:
 		if (termacts[n->tok].post)
 			(*termacts[n->tok].post)(p, mt, n, m);
 		if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
 			term_fontrepl(p, TERMFONT_NONE);
+		break;
 	}
 
 	if (MAN_EOS & n->flags)
@@ -877,9 +930,13 @@ print_man_foot(struct termp *p, const void *arg)
 	term_vspace(p);
 
 	p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
-	p->rmargin = p->maxrmargin - strlen(buf);
+	p->rmargin = p->maxrmargin - term_strlen(p, buf);
 	p->offset = 0;
 
+	/* term_strlen() can return zero. */
+	if (p->rmargin == p->maxrmargin)
+		p->rmargin--;
+
 	if (meta->source)
 		term_word(p, meta->source);
 	if (meta->source)
@@ -918,14 +975,15 @@ print_man_head(struct termp *p, const void *arg)
 
 	if (m->vol)
 		strlcpy(buf, m->vol, BUFSIZ);
-	buflen = strlen(buf);
+	buflen = term_strlen(p, buf);
 
 	snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
-	titlen = strlen(title);
+	titlen = term_strlen(p, title);
 
 	p->offset = 0;
 	p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
-	    (p->maxrmargin - strlen(buf) + 1) / 2 :
+	    (p->maxrmargin - 
+	     term_strlen(p, buf) + term_len(p, 1)) / 2 :
 	    p->maxrmargin - buflen;
 	p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;