===================================================================
RCS file: /cvs/mandoc/man_term.c,v
retrieving revision 1.30
retrieving revision 1.51
diff -u -p -r1.30 -r1.51
--- mandoc/man_term.c	2009/09/15 08:16:20	1.30
+++ mandoc/man_term.c	2009/11/10 12:03:30	1.51
@@ -1,4 +1,4 @@
-/*	$Id: man_term.c,v 1.30 2009/09/15 08:16:20 kristaps Exp $ */
+/*	$Id: man_term.c,v 1.51 2009/11/10 12:03:30 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -22,12 +22,17 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "term.h"
+#include "out.h"
 #include "man.h"
+#include "term.h"
+#include "chars.h"
+#include "main.h"
 
 #define	INDENT		  7
 #define	HALFINDENT	  3
 
+/* FIXME: have PD set the default vspace width. */
+
 struct	mtermp {
 	int		  fl;
 #define	MANT_LITERAL	 (1 << 0)
@@ -58,14 +63,28 @@ struct	termact {
 	void		(*post)(DECL_ARGS);
 };
 
+#ifdef __linux__
+extern	size_t		  strlcpy(char *, const char *, size_t);
+extern	size_t		  strlcat(char *, const char *, size_t);
+#endif
+
+static	int		  a2width(const struct man_node *);
+static	int		  a2height(const struct man_node *);
+
+static	void		  print_man_head(struct termp *, 
+				const struct man_meta *);
+static	void		  print_man_body(DECL_ARGS);
+static	void		  print_man_node(DECL_ARGS);
+static	void		  print_man_foot(struct termp *, 
+				const struct man_meta *);
+static	void		  print_bvspace(struct termp *, 
+				const struct man_node *);
+
 static	int		  pre_B(DECL_ARGS);
 static	int		  pre_BI(DECL_ARGS);
-static	int		  pre_BR(DECL_ARGS);
 static	int		  pre_HP(DECL_ARGS);
 static	int		  pre_I(DECL_ARGS);
-static	int		  pre_IB(DECL_ARGS);
 static	int		  pre_IP(DECL_ARGS);
-static	int		  pre_IR(DECL_ARGS);
 static	int		  pre_PP(DECL_ARGS);
 static	int		  pre_RB(DECL_ARGS);
 static	int		  pre_RI(DECL_ARGS);
@@ -90,7 +109,7 @@ static	void		  post_SS(DECL_ARGS);
 static	void		  post_TP(DECL_ARGS);
 static	void		  post_i(DECL_ARGS);
 
-static const struct termact termacts[MAN_MAX] = {
+static	const struct termact termacts[MAN_MAX] = {
 	{ pre_br, NULL }, /* br */
 	{ NULL, NULL }, /* TH */
 	{ pre_SH, post_SH }, /* SH */
@@ -104,13 +123,13 @@ static const struct termact termacts[MAN_MAX] = {
 	{ NULL, NULL }, /* SM */
 	{ pre_B, post_B }, /* SB */
 	{ pre_BI, NULL }, /* BI */
-	{ pre_IB, NULL }, /* IB */
-	{ pre_BR, NULL }, /* BR */
+	{ pre_BI, NULL }, /* IB */
+	{ pre_RB, NULL }, /* BR */
 	{ pre_RB, NULL }, /* RB */
 	{ NULL, NULL }, /* R */
 	{ pre_B, post_B }, /* B */
 	{ pre_I, post_I }, /* I */
-	{ pre_IR, NULL }, /* IR */
+	{ pre_RI, NULL }, /* IR */
 	{ pre_RI, NULL }, /* RI */
 	{ NULL, NULL }, /* na */
 	{ pre_I, post_i }, /* i */
@@ -122,90 +141,89 @@ static const struct termact termacts[MAN_MAX] = {
 	{ pre_RS, post_RS }, /* RS */
 	{ pre_ign, NULL }, /* DT */
 	{ pre_ign, NULL }, /* UC */
+	{ pre_ign, NULL }, /* PD */
 };
 
-#ifdef __linux__
-extern	size_t		  strlcpy(char *, const char *, size_t);
-extern	size_t		  strlcat(char *, const char *, size_t);
-#endif
 
-static	int		  print_head(struct termp *, 
-				const struct man_meta *);
-static	void		  print_body(DECL_ARGS);
-static	void		  print_node(DECL_ARGS);
-static	int		  print_foot(struct termp *, 
-				const struct man_meta *);
-static	void		  fmt_block_vspace(struct termp *, 
-				const struct man_node *);
-static	int		  arg_width(const struct man_node *);
 
-
-int
-man_run(struct termp *p, const struct man *m)
+void
+terminal_man(void *arg, const struct man *man)
 {
-	struct mtermp	 mt;
+	struct termp		*p;
+	const struct man_node	*n;
+	const struct man_meta	*m;
+	struct mtermp		 mt;
 
-	if ( ! print_head(p, man_meta(m)))
-		return(0);
+	p = (struct termp *)arg;
+
+	if (NULL == p->symtab)
+		switch (p->enc) {
+		case (TERMENC_ASCII):
+			p->symtab = chars_init(CHARS_ASCII);
+			break;
+		default:
+			abort();
+			/* NOTREACHED */
+		}
+
+	n = man_node(man);
+	m = man_meta(man);
+
+	print_man_head(p, m);
 	p->flags |= TERMP_NOSPACE;
-	assert(man_node(m));
-	assert(MAN_ROOT == man_node(m)->type);
 
 	mt.fl = 0;
 	mt.lmargin = INDENT;
 	mt.offset = INDENT;
 
-	if (man_node(m)->child)
-		print_body(p, &mt, man_node(m)->child, man_meta(m));
-	if ( ! print_foot(p, man_meta(m)))
-		return(0);
-
-	return(1);
+	if (n->child)
+		print_man_body(p, &mt, n->child, m);
+	print_man_foot(p, m);
 }
 
 
-static void
-fmt_block_vspace(struct termp *p, const struct man_node *n)
+static int
+a2height(const struct man_node *n)
 {
-	term_newln(p);
+	struct roffsu	 su;
 
-	if (NULL == n->prev)
-		return;
+	assert(MAN_TEXT == n->type);
+	assert(n->string);
+	if ( ! a2roffsu(n->string, &su, SCALE_VS))
+		SCALE_VS_INIT(&su, strlen(n->string));
 
-	if (MAN_SS == n->prev->tok)
-		return;
-	if (MAN_SH == n->prev->tok)
-		return;
-
-	term_vspace(p);
+	return((int)term_vspan(&su));
 }
 
 
 static int
-arg_width(const struct man_node *n)
+a2width(const struct man_node *n)
 {
-	int		 i, len;
-	const char	*p;
+	struct roffsu	 su;
 
 	assert(MAN_TEXT == n->type);
 	assert(n->string);
+	if ( ! a2roffsu(n->string, &su, SCALE_BU))
+		return(-1);
 
-	p = n->string;
+	return((int)term_hspan(&su));
+}
 
-	if (0 == (len = (int)strlen(p)))
-		return(-1);
 
-	for (i = 0; i < len; i++) 
-		if ( ! isdigit((u_char)p[i]))
-			break;
+static void
+print_bvspace(struct termp *p, const struct man_node *n)
+{
+	term_newln(p);
 
-	if (i == len - 1)  {
-		if ('n' == p[len - 1] || 'm' == p[len - 1])
-			return(atoi(p));
-	} else if (i == len)
-		return(atoi(p));
+	if (NULL == n->prev)
+		return;
 
-	return(-1);
+	if (MAN_SS == n->prev->tok)
+		return;
+	if (MAN_SH == n->prev->tok)
+		return;
+
+	term_vspace(p);
 }
 
 
@@ -280,63 +298,26 @@ pre_nf(DECL_ARGS)
 
 /* ARGSUSED */
 static int
-pre_IR(DECL_ARGS)
+pre_RB(DECL_ARGS)
 {
 	const struct man_node *nn;
 	int		 i;
 
 	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if ( ! (i % 2))
-			p->under++;
-		if (i > 0)
-			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if ( ! (i % 2))
-			p->under--;
-	}
-	return(0);
-}
-
-
-/* ARGSUSED */
-static int
-pre_IB(DECL_ARGS)
-{
-	const struct man_node *nn;
-	int		 i;
-
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2)
+		if (i % 2 && MAN_RB == n->tok)
 			p->bold++;
-		else
-			p->under++;
+		else if ( ! (i % 2) && MAN_RB != n->tok)
+			p->bold++;
+
 		if (i > 0)
 			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if (i % 2)
-			p->bold--;
-		else
-			p->under--;
-	}
-	return(0);
-}
 
+		print_man_node(p, mt, nn, m);
 
-/* ARGSUSED */
-static int
-pre_RB(DECL_ARGS)
-{
-	const struct man_node *nn;
-	int		 i;
-
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2)
-			p->bold++;
-		if (i > 0)
-			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if (i % 2)
+		if (i % 2 && MAN_RB == n->tok)
 			p->bold--;
+		else if ( ! (i % 2) && MAN_RB != n->tok)
+			p->bold--;
 	}
 	return(0);
 }
@@ -350,13 +331,19 @@ pre_RI(DECL_ARGS)
 	int		 i;
 
 	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if ( ! (i % 2))
+		if (i % 2 && MAN_RI == n->tok)
 			p->under++;
+		else if ( ! (i % 2) && MAN_RI != n->tok)
+			p->under++;
+
 		if (i > 0)
 			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if ( ! (i % 2))
+		print_man_node(p, mt, nn, m);
+
+		if (i % 2 && MAN_RI == n->tok)
 			p->under--;
+		else if ( ! (i % 2) && MAN_RI != n->tok)
+			p->under--;
 	}
 	return(0);
 }
@@ -364,43 +351,33 @@ pre_RI(DECL_ARGS)
 
 /* ARGSUSED */
 static int
-pre_BR(DECL_ARGS)
-{
-	const struct man_node *nn;
-	int		 i;
-
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if ( ! (i % 2))
-			p->bold++;
-		if (i > 0)
-			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if ( ! (i % 2))
-			p->bold--;
-	}
-	return(0);
-}
-
-
-/* ARGSUSED */
-static int
 pre_BI(DECL_ARGS)
 {
-	const struct man_node *nn;
-	int		 i;
+	const struct man_node	*nn;
+	int			 i;
 
 	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
-		if (i % 2)
+		if (i % 2 && MAN_BI == n->tok)
 			p->under++;
-		else
+		else if (i % 2)
 			p->bold++;
-		if (i > 0)
+		else if (MAN_BI == n->tok)
+			p->bold++;
+		else
+			p->under++;
+
+		if (i)
 			p->flags |= TERMP_NOSPACE;
-		print_node(p, mt, nn, m);
-		if (i % 2)
+		print_man_node(p, mt, nn, m);
+
+		if (i % 2 && MAN_BI == n->tok)
 			p->under--;
-		else
+		else if (i % 2)
 			p->bold--;
+		else if (MAN_BI == n->tok)
+			p->bold--;
+		else
+			p->under--;
 	}
 	return(0);
 }
@@ -431,12 +408,8 @@ pre_sp(DECL_ARGS)
 {
 	int		 i, len;
 
-	if (NULL == n->child) {
-		term_vspace(p);
-		return(0);
-	}
+	len = n->child ? a2height(n->child) : 1;
 
-	len = atoi(n->child->string);
 	if (0 == len)
 		term_newln(p);
 	for (i = 0; i < len; i++)
@@ -466,7 +439,7 @@ pre_HP(DECL_ARGS)
 
 	switch (n->type) {
 	case (MAN_BLOCK):
-		fmt_block_vspace(p, n);
+		print_bvspace(p, n);
 		return(1);
 	case (MAN_BODY):
 		p->flags |= TERMP_NOBREAK;
@@ -482,7 +455,7 @@ pre_HP(DECL_ARGS)
 	/* Calculate offset. */
 
 	if (NULL != (nn = n->parent->head->child))
-		if ((ival = arg_width(nn)) >= 0)
+		if ((ival = a2width(nn)) >= 0)
 			len = (size_t)ival;
 
 	if (0 == len)
@@ -528,7 +501,7 @@ pre_PP(DECL_ARGS)
 	switch (n->type) {
 	case (MAN_BLOCK):
 		mt->lmargin = INDENT;
-		fmt_block_vspace(p, n);
+		print_bvspace(p, n);
 		break;
 	default:
 		p->offset = mt->offset;
@@ -557,7 +530,7 @@ pre_IP(DECL_ARGS)
 		p->flags |= TERMP_TWOSPACE;
 		break;
 	case (MAN_BLOCK):
-		fmt_block_vspace(p, n);
+		print_bvspace(p, n);
 		/* FALLTHROUGH */
 	default:
 		return(1);
@@ -572,7 +545,7 @@ pre_IP(DECL_ARGS)
 		if (NULL != (nn = nn->next)) {
 			for ( ; nn->next; nn = nn->next)
 				/* Do nothing. */ ;
-			if ((ival = arg_width(nn)) >= 0)
+			if ((ival = a2width(nn)) >= 0)
 				len = (size_t)ival;
 		}
 
@@ -592,7 +565,7 @@ pre_IP(DECL_ARGS)
 
 		/* Don't print the length value. */
 		for (nn = n->child; nn->next; nn = nn->next)
-			print_node(p, mt, nn, m);
+			print_man_node(p, mt, nn, m);
 		return(0);
 	case (MAN_BODY):
 		p->offset = mt->offset + len;
@@ -646,7 +619,7 @@ pre_TP(DECL_ARGS)
 		p->flags |= TERMP_NOSPACE;
 		break;
 	case (MAN_BLOCK):
-		fmt_block_vspace(p, n);
+		print_bvspace(p, n);
 		/* FALLTHROUGH */
 	default:
 		return(1);
@@ -659,7 +632,7 @@ pre_TP(DECL_ARGS)
 
 	if (NULL != (nn = n->parent->head->child))
 		if (NULL != nn->next)
-			if ((ival = arg_width(nn)) >= 0)
+			if ((ival = a2width(nn)) >= 0)
 				len = (size_t)ival;
 
 	switch (n->type) {
@@ -674,7 +647,7 @@ pre_TP(DECL_ARGS)
 		/* Don't print same-line elements. */
 		for (nn = n->child; nn; nn = nn->next) 
 			if (nn->line > n->line)
-				print_node(p, mt, nn, m);
+				print_man_node(p, mt, nn, m);
 
 		if (ival >= 0)
 			mt->lmargin = (size_t)ival;
@@ -837,7 +810,7 @@ pre_RS(DECL_ARGS)
 		return(1);
 	}
 
-	if ((ival = arg_width(nn)) < 0)
+	if ((ival = a2width(nn)) < 0)
 		return(1);
 
 	mt->offset = INDENT + (size_t)ival;
@@ -865,7 +838,7 @@ post_RS(DECL_ARGS)
 
 
 static void
-print_node(DECL_ARGS)
+print_man_node(DECL_ARGS)
 {
 	int		 c, sz;
 
@@ -901,39 +874,38 @@ print_node(DECL_ARGS)
 	}
 
 	if (c && n->child)
-		print_body(p, mt, n->child, m);
+		print_man_body(p, mt, n->child, m);
 
-	if (MAN_TEXT != n->type)
+	if (MAN_TEXT != n->type) {
 		if (termacts[n->tok].post)
 			(*termacts[n->tok].post)(p, mt, n, m);
+
+		/* Reset metafont upon exit from macro. */
+		p->metafont = 0;
+	}
 }
 
 
 static void
-print_body(DECL_ARGS)
+print_man_body(DECL_ARGS)
 {
 
-	print_node(p, mt, n, m);
+	print_man_node(p, mt, n, m);
 	if ( ! n->next)
 		return;
-	print_body(p, mt, n->next, m);
+	print_man_body(p, mt, n->next, m);
 }
 
 
-static int
-print_foot(struct termp *p, const struct man_meta *meta)
+static void
+print_man_foot(struct termp *p, const struct man_meta *meta)
 {
-	struct tm	*tm;
-	char		*buf;
+	char		buf[DATESIZ];
 
-	if (NULL == (buf = malloc(p->rmargin)))
-		return(0);
+	p->metafont = 0;
 
-	tm = localtime(&meta->date);
+	time2a(meta->date, buf, DATESIZ);
 
-	if (0 == strftime(buf, p->rmargin, "%B %d, %Y", tm))
-		buf[0] = 0;
-
 	term_vspace(p);
 
 	p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
@@ -953,33 +925,23 @@ print_foot(struct termp *p, const struct man_meta *met
 
 	term_word(p, buf);
 	term_flushln(p);
-
-	free(buf);
-	return(1);
 }
 
 
-static int
-print_head(struct termp *p, const struct man_meta *meta)
+static void
+print_man_head(struct termp *p, const struct man_meta *m)
 {
-	char		*buf, *title;
+	char		buf[BUFSIZ], title[BUFSIZ];
 
 	p->rmargin = p->maxrmargin;
 	p->offset = 0;
+	buf[0] = title[0] = '\0';
 
-	if (NULL == (buf = malloc(p->rmargin)))
-		return(0);
-	if (NULL == (title = malloc(p->rmargin)))
-		return(0);
+	if (m->vol)
+		strlcpy(buf, m->vol, BUFSIZ);
 
-	if (meta->vol)
-		(void)strlcpy(buf, meta->vol, p->rmargin);
-	else
-		*buf = 0;
+	snprintf(title, BUFSIZ, "%s(%d)", m->title, m->msec);
 
-	(void)snprintf(title, p->rmargin, "%s(%d)", 
-			meta->title, meta->msec);
-
 	p->offset = 0;
 	p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
 	p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
@@ -1005,9 +967,4 @@ print_head(struct termp *p, const struct man_meta *met
 	p->rmargin = p->maxrmargin;
 	p->offset = 0;
 	p->flags &= ~TERMP_NOSPACE;
-
-	free(title);
-	free(buf);
-	return(1);
 }
-