===================================================================
RCS file: /cvs/mandoc/man_html.c,v
retrieving revision 1.1
retrieving revision 1.181
diff -u -p -r1.1 -r1.181
--- mandoc/man_html.c	2009/09/21 14:56:57	1.1
+++ mandoc/man_html.c	2022/07/04 14:37:33	1.181
@@ -1,30 +1,640 @@
-/*	$Id: man_html.c,v 1.1 2009/09/21 14:56:57 kristaps Exp $ */
+/* $Id: man_html.c,v 1.181 2022/07/04 14:37:33 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2013-2015, 2017-2020 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2008-2012, 2014 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
  * copyright notice and this permission notice appear in all copies.
  *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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.
+ *
+ * HTML formatter for man(7) used by mandoc(1).
  */
+#include "config.h"
+
 #include <sys/types.h>
-#include <sys/queue.h>
 
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
-#include "html.h"
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
 #include "man.h"
+#include "out.h"
+#include "html.h"
+#include "main.h"
 
+#define	MAN_ARGS	  const struct roff_meta *man, \
+			  struct roff_node *n, \
+			  struct html *h
 
-/* ARGSUSED */
+struct	man_html_act {
+	int		(*pre)(MAN_ARGS);
+	int		(*post)(MAN_ARGS);
+};
+
+static	void		  print_man_head(const struct roff_meta *,
+				struct html *);
+static	void		  print_man_nodelist(MAN_ARGS);
+static	void		  print_man_node(MAN_ARGS);
+static	char		  list_continues(const struct roff_node *,
+				const struct roff_node *);
+static	int		  man_B_pre(MAN_ARGS);
+static	int		  man_IP_pre(MAN_ARGS);
+static	int		  man_I_pre(MAN_ARGS);
+static	int		  man_OP_pre(MAN_ARGS);
+static	int		  man_PP_pre(MAN_ARGS);
+static	int		  man_RS_pre(MAN_ARGS);
+static	int		  man_SH_pre(MAN_ARGS);
+static	int		  man_SM_pre(MAN_ARGS);
+static	int		  man_SY_pre(MAN_ARGS);
+static	int		  man_UR_pre(MAN_ARGS);
+static	int		  man_abort_pre(MAN_ARGS);
+static	int		  man_alt_pre(MAN_ARGS);
+static	int		  man_ign_pre(MAN_ARGS);
+static	int		  man_in_pre(MAN_ARGS);
+static	void		  man_root_post(const struct roff_meta *,
+				struct html *);
+static	void		  man_root_pre(const struct roff_meta *,
+				struct html *);
+
+static	const struct man_html_act man_html_acts[MAN_MAX - MAN_TH] = {
+	{ NULL, NULL }, /* TH */
+	{ man_SH_pre, NULL }, /* SH */
+	{ man_SH_pre, NULL }, /* SS */
+	{ man_IP_pre, NULL }, /* TP */
+	{ man_IP_pre, NULL }, /* TQ */
+	{ man_abort_pre, NULL }, /* LP */
+	{ man_PP_pre, NULL }, /* PP */
+	{ man_abort_pre, NULL }, /* P */
+	{ man_IP_pre, NULL }, /* IP */
+	{ man_PP_pre, NULL }, /* HP */
+	{ man_SM_pre, NULL }, /* SM */
+	{ man_SM_pre, NULL }, /* SB */
+	{ man_alt_pre, NULL }, /* BI */
+	{ man_alt_pre, NULL }, /* IB */
+	{ man_alt_pre, NULL }, /* BR */
+	{ man_alt_pre, NULL }, /* RB */
+	{ NULL, NULL }, /* R */
+	{ man_B_pre, NULL }, /* B */
+	{ man_I_pre, NULL }, /* I */
+	{ man_alt_pre, NULL }, /* IR */
+	{ man_alt_pre, NULL }, /* RI */
+	{ NULL, NULL }, /* RE */
+	{ man_RS_pre, NULL }, /* RS */
+	{ man_ign_pre, NULL }, /* DT */
+	{ man_ign_pre, NULL }, /* UC */
+	{ man_ign_pre, NULL }, /* PD */
+	{ man_ign_pre, NULL }, /* AT */
+	{ man_in_pre, NULL }, /* in */
+	{ man_SY_pre, NULL }, /* SY */
+	{ NULL, NULL }, /* YS */
+	{ man_OP_pre, NULL }, /* OP */
+	{ NULL, NULL }, /* EX */
+	{ NULL, NULL }, /* EE */
+	{ man_UR_pre, NULL }, /* UR */
+	{ NULL, NULL }, /* UE */
+	{ man_UR_pre, NULL }, /* MT */
+	{ NULL, NULL }, /* ME */
+};
+
+
 void
-html_man(void *arg, const struct man *m)
+html_man(void *arg, const struct roff_meta *man)
 {
+	struct html		*h;
+	struct roff_node	*n;
+	struct tag		*t;
+
+	h = (struct html *)arg;
+	n = man->first->child;
+
+	if ((h->oflags & HTML_FRAGMENT) == 0) {
+		print_gen_decls(h);
+		print_otag(h, TAG_HTML, "");
+		t = print_otag(h, TAG_HEAD, "");
+		print_man_head(man, h);
+		print_tagq(h, t);
+		if (n != NULL && n->type == ROFFT_COMMENT)
+			print_gen_comment(h, n);
+		print_otag(h, TAG_BODY, "");
+	}
+
+	man_root_pre(man, h);
+	t = print_otag(h, TAG_MAIN, "c", "manual-text");
+	print_man_nodelist(man, n, h);
+	print_tagq(h, t);
+	man_root_post(man, h);
+	print_tagq(h, NULL);
+}
+
+static void
+print_man_head(const struct roff_meta *man, struct html *h)
+{
+	char	*cp;
+
+	print_gen_head(h);
+	mandoc_asprintf(&cp, "%s(%s)", man->title, man->msec);
+	print_otag(h, TAG_TITLE, "");
+	print_text(h, cp);
+	free(cp);
+}
+
+static void
+print_man_nodelist(MAN_ARGS)
+{
+	while (n != NULL) {
+		print_man_node(man, n, h);
+		n = n->next;
+	}
+}
+
+static void
+print_man_node(MAN_ARGS)
+{
+	struct tag	*t;
+	int		 child;
+
+	if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
+		return;
+
+	if ((n->flags & NODE_NOFILL) == 0)
+		html_fillmode(h, ROFF_fi);
+	else if (html_fillmode(h, ROFF_nf) == ROFF_nf &&
+	    n->tok != ROFF_fi && n->flags & NODE_LINE &&
+	    (n->prev == NULL || n->prev->tok != MAN_YS))
+		print_endline(h);
+
+	child = 1;
+	switch (n->type) {
+	case ROFFT_TEXT:
+		if (*n->string == '\0') {
+			print_endline(h);
+			return;
+		}
+		if (*n->string == ' ' && n->flags & NODE_LINE &&
+		    (h->flags & HTML_NONEWLINE) == 0)
+			print_otag(h, TAG_BR, "");
+		else if (n->flags & NODE_DELIMC)
+			h->flags |= HTML_NOSPACE;
+		t = h->tag;
+		t->refcnt++;
+		print_text(h, n->string);
+		break;
+	case ROFFT_EQN:
+		t = h->tag;
+		t->refcnt++;
+		print_eqn(h, n->eqn);
+		break;
+	case ROFFT_TBL:
+		/*
+		 * This will take care of initialising all of the table
+		 * state data for the first table, then tearing it down
+		 * for the last one.
+		 */
+		print_tbl(h, n->span);
+		return;
+	default:
+		/*
+		 * Close out scope of font prior to opening a macro
+		 * scope.
+		 */
+		if (h->metac != ESCAPE_FONTROMAN) {
+			h->metal = h->metac;
+			h->metac = ESCAPE_FONTROMAN;
+		}
+
+		/*
+		 * Close out the current table, if it's open, and unset
+		 * the "meta" table state.  This will be reopened on the
+		 * next table element.
+		 */
+		if (h->tblt != NULL)
+			print_tblclose(h);
+		t = h->tag;
+		t->refcnt++;
+		if (n->tok < ROFF_MAX) {
+			roff_html_pre(h, n);
+			t->refcnt--;
+			print_stagq(h, t);
+			return;
+		}
+		assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
+		if (man_html_acts[n->tok - MAN_TH].pre != NULL)
+			child = (*man_html_acts[n->tok - MAN_TH].pre)(man,
+			    n, h);
+		break;
+	}
+
+	if (child && n->child != NULL)
+		print_man_nodelist(man, n->child, h);
+
+	/* This will automatically close out any font scope. */
+	t->refcnt--;
+	if (n->type == ROFFT_BLOCK &&
+	    (n->tok == MAN_IP || n->tok == MAN_TP || n->tok == MAN_TQ)) {
+		t = h->tag;
+		while (t->tag != TAG_DL && t->tag != TAG_UL)
+			t = t->next;
+		/*
+		 * Close the list if no further item of the same type
+		 * follows; otherwise, close the item only.
+		 */
+		if (list_continues(n, roff_node_next(n)) == '\0') {
+			print_tagq(h, t);
+			t = NULL;
+		}
+	}
+	if (t != NULL)
+		print_stagq(h, t);
+}
+
+static void
+man_root_pre(const struct roff_meta *man, struct html *h)
+{
+	struct tag	*t, *tt;
+	char		*title;
+
+	assert(man->title);
+	assert(man->msec);
+	mandoc_asprintf(&title, "%s(%s)", man->title, man->msec);
+
+	t = print_otag(h, TAG_TABLE, "c", "head");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "head-ltitle");
+	print_text(h, title);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-vol");
+	if (man->vol != NULL)
+		print_text(h, man->vol);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "head-rtitle");
+	print_text(h, title);
+	print_tagq(h, t);
+	free(title);
+}
+
+static void
+man_root_post(const struct roff_meta *man, struct html *h)
+{
+	struct tag	*t, *tt;
+
+	t = print_otag(h, TAG_TABLE, "c", "foot");
+	tt = print_otag(h, TAG_TR, "");
+
+	print_otag(h, TAG_TD, "c", "foot-date");
+	print_text(h, man->date);
+	print_stagq(h, tt);
+
+	print_otag(h, TAG_TD, "c", "foot-os");
+	if (man->os != NULL)
+		print_text(h, man->os);
+	print_tagq(h, t);
+}
+
+static int
+man_SH_pre(MAN_ARGS)
+{
+	const char	*class;
+	enum htmltag	 tag;
+
+	if (n->tok == MAN_SH) {
+		tag = TAG_H1;
+		class = "Sh";
+	} else {
+		tag = TAG_H2;
+		class = "Ss";
+	}
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		print_otag(h, TAG_SECTION, "c", class);
+		break;
+	case ROFFT_HEAD:
+		print_otag_id(h, tag, class, n);
+		break;
+	case ROFFT_BODY:
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
+
+static int
+man_alt_pre(MAN_ARGS)
+{
+	const struct roff_node	*nn;
+	struct tag	*t;
+	int		 i;
+	enum htmltag	 fp;
+
+	for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i++) {
+		switch (n->tok) {
+		case MAN_BI:
+			fp = i % 2 ? TAG_I : TAG_B;
+			break;
+		case MAN_IB:
+			fp = i % 2 ? TAG_B : TAG_I;
+			break;
+		case MAN_RI:
+			fp = i % 2 ? TAG_I : TAG_MAX;
+			break;
+		case MAN_IR:
+			fp = i % 2 ? TAG_MAX : TAG_I;
+			break;
+		case MAN_BR:
+			fp = i % 2 ? TAG_MAX : TAG_B;
+			break;
+		case MAN_RB:
+			fp = i % 2 ? TAG_B : TAG_MAX;
+			break;
+		default:
+			abort();
+		}
+
+		if (i)
+			h->flags |= HTML_NOSPACE;
+
+		if (fp != TAG_MAX)
+			t = print_otag(h, fp, "");
+
+		print_text(h, nn->string);
+
+		if (fp != TAG_MAX)
+			print_tagq(h, t);
+	}
+	return 0;
+}
+
+static int
+man_SM_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_SMALL, "");
+	if (n->tok == MAN_SB)
+		print_otag(h, TAG_B, "");
+	return 1;
+}
+
+static int
+man_PP_pre(MAN_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		if (n->child != NULL &&
+		    (n->child->flags & NODE_NOFILL) == 0)
+			print_otag(h, TAG_P, "c",
+			    n->tok == MAN_PP ? "Pp" : "Pp HP");
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
+
+static char
+list_continues(const struct roff_node *n1, const struct roff_node *n2)
+{
+	const char *s1, *s2;
+	char c1, c2;
+
+	if (n1 == NULL || n1->type != ROFFT_BLOCK ||
+	    n2 == NULL || n2->type != ROFFT_BLOCK)
+		return '\0';
+	if ((n1->tok == MAN_TP || n1->tok == MAN_TQ) &&
+	    (n2->tok == MAN_TP || n2->tok == MAN_TQ))
+		return ' ';
+	if (n1->tok != MAN_IP || n2->tok != MAN_IP)
+		return '\0';
+	n1 = n1->head->child;
+	n2 = n2->head->child;
+	s1 = n1 == NULL ? "" : n1->string;
+	s2 = n2 == NULL ? "" : n2->string;
+	c1 = strcmp(s1, "*") == 0 ? '*' :
+	     strcmp(s1, "\\-") == 0 ? '-' :
+	     strcmp(s1, "\\(bu") == 0 ? 'b' : ' ';
+	c2 = strcmp(s2, "*") == 0 ? '*' :
+	     strcmp(s2, "\\-") == 0 ? '-' :
+	     strcmp(s2, "\\(bu") == 0 ? 'b' : ' ';
+	return c1 != c2 ? '\0' : c1 == 'b' ? '*' : c1;
+}
+
+static int
+man_IP_pre(MAN_ARGS)
+{
+	struct roff_node	*nn;
+	const char		*list_class;
+	enum htmltag		 list_elem, body_elem;
+	char			 list_type;
+
+	nn = n->type == ROFFT_BLOCK ? n : n->parent;
+	list_type = list_continues(roff_node_prev(nn), nn);
+	if (list_type == '\0') {
+		/* Start a new list. */
+		list_type = list_continues(nn, roff_node_next(nn));
+		if (list_type == '\0')
+			list_type = ' ';
+		switch (list_type) {
+		case ' ':
+			list_class = "Bl-tag";
+			list_elem = TAG_DL;
+			break;
+		case '*':
+			list_class = "Bl-bullet";
+			list_elem = TAG_UL;
+			break;
+		case '-':
+			list_class = "Bl-dash";
+			list_elem = TAG_UL;
+			break;
+		default:
+			abort();
+		}
+	} else {
+		/* Continue a list that was started earlier. */
+		list_class = NULL;
+		list_elem = TAG_MAX;
+	}
+	body_elem = list_type == ' ' ? TAG_DD : TAG_LI;
+
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		if (list_elem != TAG_MAX)
+			print_otag(h, list_elem, "c", list_class);
+		return 1;
+	case ROFFT_HEAD:
+		if (body_elem == TAG_LI)
+			return 0;
+		print_otag_id(h, TAG_DT, NULL, n);
+		break;
+	case ROFFT_BODY:
+		print_otag(h, body_elem, "");
+		return 1;
+	default:
+		abort();
+	}
+	switch(n->tok) {
+	case MAN_IP:  /* Only print the first header element. */
+		if (n->child != NULL)
+			print_man_node(man, n->child, h);
+		break;
+	case MAN_TP:  /* Only print next-line header elements. */
+	case MAN_TQ:
+		nn = n->child;
+		while (nn != NULL && (NODE_LINE & nn->flags) == 0)
+			nn = nn->next;
+		while (nn != NULL) {
+			print_man_node(man, nn, h);
+			nn = nn->next;
+		}
+		break;
+	default:
+		abort();
+	}
+	return 0;
+}
+
+static int
+man_OP_pre(MAN_ARGS)
+{
+	struct tag	*tt;
+
+	print_text(h, "[");
+	h->flags |= HTML_NOSPACE;
+	tt = print_otag(h, TAG_SPAN, "c", "Op");
+
+	if ((n = n->child) != NULL) {
+		print_otag(h, TAG_B, "");
+		print_text(h, n->string);
+	}
+
+	print_stagq(h, tt);
+
+	if (n != NULL && n->next != NULL) {
+		print_otag(h, TAG_I, "");
+		print_text(h, n->next->string);
+	}
+
+	print_stagq(h, tt);
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "]");
+	return 0;
+}
+
+static int
+man_B_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_B, "");
+	return 1;
+}
+
+static int
+man_I_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_I, "");
+	return 1;
+}
+
+static int
+man_in_pre(MAN_ARGS)
+{
+	print_otag(h, TAG_BR, "");
+	return 0;
+}
+
+static int
+man_ign_pre(MAN_ARGS)
+{
+	return 0;
+}
+
+static int
+man_RS_pre(MAN_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		print_otag(h, TAG_DIV, "c", "Bd-indent");
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
+
+static int
+man_SY_pre(MAN_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		print_otag(h, TAG_TABLE, "c", "Nm");
+		print_otag(h, TAG_TR, "");
+		break;
+	case ROFFT_HEAD:
+		print_otag(h, TAG_TD, "");
+		print_otag(h, TAG_CODE, "c", "Nm");
+		break;
+	case ROFFT_BODY:
+		print_otag(h, TAG_TD, "");
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
+
+static int
+man_UR_pre(MAN_ARGS)
+{
+	char *cp;
+
+	n = n->child;
+	assert(n->type == ROFFT_HEAD);
+	if (n->child != NULL) {
+		assert(n->child->type == ROFFT_TEXT);
+		if (n->tok == MAN_MT) {
+			mandoc_asprintf(&cp, "mailto:%s", n->child->string);
+			print_otag(h, TAG_A, "ch", "Mt", cp);
+			free(cp);
+		} else
+			print_otag(h, TAG_A, "ch", "Lk", n->child->string);
+	}
+
+	assert(n->next->type == ROFFT_BODY);
+	if (n->next->child != NULL)
+		n = n->next;
+
+	print_man_nodelist(man, n->child, h);
+	return 0;
+}
+
+static int
+man_abort_pre(MAN_ARGS)
+{
+	abort();
 }