1 files changed, 426 insertions, 0 deletions
diff --git a/mdoc_man.c b/mdoc_man.c
new file mode 100644
index 00000000..de62609f
--- /dev/null
+++ b/mdoc_man.c
@@ -0,0 +1,426 @@
+/*	$Id: mdoc_man.c,v 1.1 2011/09/17 15:00:51 schwarze Exp $ */
+/*
+ * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <stdio.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "mdoc.h"
+#include "main.h"
+
+static	int	  need_space = 0;
+static	int	  need_nl = 0;
+
+#define	DECL_ARGS const struct mdoc_meta *m, \
+		  const struct mdoc_node *n
+
+struct	manact {
+	int		(*cond)(DECL_ARGS);
+	int		(*pre)(DECL_ARGS);
+	void		(*post)(DECL_ARGS);
+	char		 *prefix;
+	char		 *suffix;
+};
+
+static	void	  print_word(const char *);
+static	void	  print_node(DECL_ARGS);
+
+static	int	  cond_head(DECL_ARGS);
+static	int	  cond_body(DECL_ARGS);
+static	int	  pre_enc(DECL_ARGS);
+static	void	  post_enc(DECL_ARGS);
+static	void	  post_percent(DECL_ARGS);
+
+static	int	  pre_dl(DECL_ARGS);
+static	void	  post_dl(DECL_ARGS);
+static	int	  pre_it(DECL_ARGS);
+static	int	  pre_nm(DECL_ARGS);
+static	void	  post_nm(DECL_ARGS);
+static	int	  pre_ns(DECL_ARGS);
+static	int	  pre_pp(DECL_ARGS);
+static	int	  pre_sh(DECL_ARGS);
+static	void	  post_sh(DECL_ARGS);
+static	int	  pre_xr(DECL_ARGS);
+
+
+static	const struct manact manacts[MDOC_MAX] = {
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ap */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Dd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Dt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Os */
+	{ NULL, pre_sh, post_sh, NULL, NULL }, /* Sh */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ss */
+	{ NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _D1 */
+	{ cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bd */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ed */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bl */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _El */
+	{ NULL, pre_it, NULL, NULL, NULL }, /* _It */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ad */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _An */
+	{ NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Ar */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Cd */
+	{ NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Cm */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Dv */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Er */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ev */
+	{ NULL, pre_enc, post_enc, "The \\fB",
+	    "\\fP\nutility exits 0 on success, and >0 if an error occurs."
+	    }, /* Ex */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fa */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fd */
+	{ NULL, pre_enc, post_enc, "\\fB-", "\\fP" }, /* Fl */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fn */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ft */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ic */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _In */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Li */
+	{ cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
+	{ NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
+	{ cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ot */
+	{ NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* _Pa */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Rv */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _St */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Va */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Vt */
+	{ NULL, pre_xr, NULL, NULL, NULL }, /* _Xr */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* _%A */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%B */
+	{ NULL, NULL, post_percent, NULL, NULL }, /* _%D */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%I */
+	{ NULL, pre_enc, post_percent, "\\fI", "\\fP" }, /* %J */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%N */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%O */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%P */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%R */
+	{ NULL, pre_enc, post_percent, "\"", "\"" }, /* %T */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%V */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ac */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ao */
+	{ cond_body, pre_enc, post_enc, "<", ">" }, /* Aq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _At */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bf */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bsx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Db */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Dc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Do */
+	{ cond_body, pre_enc, post_enc, "``", "''" }, /* Dq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ec */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ef */
+	{ NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* _Em */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Eo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ms */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _No */
+	{ NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Nx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ox */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Pc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Pf */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Po */
+	{ cond_body, pre_enc, post_enc, "(", ")" }, /* _Pq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Qc */
+	{ cond_body, pre_enc, post_enc, "`", "'" }, /* Ql */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Qo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Qq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Re */
+	{ cond_body, pre_pp, NULL, NULL, NULL }, /* Rs */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Sc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _So */
+	{ cond_body, pre_enc, post_enc, "`", "'" }, /* Sq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Sm */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Sx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Sy */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Tn */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ux */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Xc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Xo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Oo */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Oc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bk */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ek */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Hf */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Fr */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ud */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Lb */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Lp */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Lk */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Mt */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Brq */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Bro */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Brc */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%C */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Es */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _En */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Dx */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%Q */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _br */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _sp */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _%U */
+	{ NULL, NULL, NULL, NULL, NULL }, /* _Ta */
+};
+
+
+static void
+print_word(const char *s)
+{
+	if (need_nl) {
+		putchar('\n');
+		need_space = 0;
+		need_nl = 0;
+	} else if (need_space &&
+	    (NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]))
+		putchar(' ');
+	need_space = ('(' != s[0] && '[' != s[0]) || '\0' != s[1];
+	for ( ; *s; s++) {
+		switch (*s) {
+		case (ASCII_NBRSP):
+			printf("\\~");
+			break;
+		case (ASCII_HYPH):
+			putchar('-');
+			break;
+		default:
+			putchar(*s);
+			break;
+		}
+	}
+}
+
+void
+man_mdoc(void *arg, const struct mdoc *mdoc)
+{
+	const struct mdoc_meta *m;
+	const struct mdoc_node *n;
+
+	m = mdoc_meta(mdoc);
+	n = mdoc_node(mdoc);
+
+	printf(".TH \"%s\" \"%s\" \"%s\"", m->title, m->msec, m->date);
+	need_nl = 1;
+	need_space = 0;
+
+	print_node(m, n);
+}
+
+static void
+print_node(DECL_ARGS)
+{
+	const struct mdoc_node	*prev, *sub;
+	const struct manact	*act = NULL;
+	int			 cond, do_sub;
+
+	prev = n->prev ? n->prev : n->parent;
+	if (prev && prev->line < n->line)
+		need_nl = 1;
+
+	cond = 0;
+	do_sub = 1;
+	if (MDOC_TEXT == n->type) {
+		print_word(n->string);
+	} else {
+		act = manacts + n->tok;
+		cond = NULL == act->cond || (*act->cond)(m, n);
+		if (cond && act->pre)
+			do_sub = (*act->pre)(m, n);
+	}
+
+	if (do_sub)
+		for (sub = n->child; sub; sub = sub->next)
+			print_node(m, sub);
+
+	if (cond && act->post)
+		(*act->post)(m, n);
+}
+
+static int
+cond_head(DECL_ARGS)
+{
+	return(MDOC_HEAD == n->type);
+}
+
+static int
+cond_body(DECL_ARGS)
+{
+	return(MDOC_BODY == n->type);
+}
+
+static int
+pre_enc(DECL_ARGS)
+{
+	const char *prefix;
+
+	prefix = manacts[n->tok].prefix;
+	if (NULL == prefix)
+		return(1);
+	print_word(prefix);
+	need_space = 0;
+	return(1);
+}
+
+static void
+post_enc(DECL_ARGS)
+{
+	const char *suffix;
+
+	suffix = manacts[n->tok].suffix;
+	if (NULL == suffix)
+		return;
+	need_space = 0;
+	print_word(suffix);
+}
+
+static void
+post_percent(DECL_ARGS)
+{
+
+	post_enc(m, n);
+	if (n->next)
+		print_word(",");
+	else {
+		print_word(".");
+		need_nl = 1;
+	}
+}
+
+static int
+pre_dl(DECL_ARGS)
+{
+
+	need_nl = 1;
+	print_word(".RS 6n");
+	need_nl = 1;
+	return(1);
+}
+
+static void
+post_dl(DECL_ARGS)
+{
+
+	need_nl = 1;
+	print_word(".RE");
+	need_nl = 1;
+}
+
+static int
+pre_it(DECL_ARGS)
+{
+	const struct mdoc_node *bln;
+
+	if (MDOC_HEAD == n->type) {
+		need_nl = 1;
+		print_word(".TP");
+		bln = n->parent->parent->prev;
+		print_word(bln->norm->Bl.width);
+		need_nl = 1;
+	}
+	return(1);
+}
+
+static int
+pre_nm(DECL_ARGS)
+{
+
+	if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
+		return(1);
+	print_word("\\fB");
+	need_space = 0;
+	if (NULL == n->child)
+		print_word(m->name);
+	return(1);
+}
+
+static void
+post_nm(DECL_ARGS)
+{
+
+	if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
+		return;
+	need_space = 0;
+	print_word("\\fP");
+}
+
+static int
+pre_ns(DECL_ARGS)
+{
+
+	need_space = 0;
+	return(0);
+}
+
+static int
+pre_pp(DECL_ARGS)
+{
+
+	need_nl = 1;
+	if (MDOC_It == n->parent->tok)
+		print_word(".sp");
+	else
+		print_word(".PP");
+	need_nl = 1;
+	return(1);
+}
+
+static int
+pre_sh(DECL_ARGS)
+{
+
+	if (MDOC_HEAD != n->type)
+		return(1);
+	need_nl = 1;
+	print_word(".SH \"");
+	need_space = 0;
+	return(1);
+}
+
+static void
+post_sh(DECL_ARGS)
+{
+
+	if (MDOC_HEAD != n->type)
+		return;
+	need_space = 0;
+	print_word("\"");
+	need_nl = 1;
+}
+
+static int
+pre_xr(DECL_ARGS)
+{
+
+	n = n->child;
+	if (NULL == n)
+		return(0);
+	print_node(m, n);
+	n = n->next;
+	if (NULL == n)
+		return(0);
+	need_space = 0;
+	print_word("(");
+	print_node(m, n);
+	print_word(")");
+	return(0);
+}