===================================================================
RCS file: /cvs/mandoc/html.c,v
retrieving revision 1.2
retrieving revision 1.8
diff -u -p -r1.2 -r1.8
--- mandoc/html.c	2008/12/03 19:21:58	1.2
+++ mandoc/html.c	2008/12/05 17:43:14	1.8
@@ -1,4 +1,4 @@
-/* $Id: html.c,v 1.2 2008/12/03 19:21:58 kristaps Exp $ */
+/* $Id: html.c,v 1.8 2008/12/05 17:43:14 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -16,168 +16,402 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
+#include <sys/param.h>
+#include <sys/stat.h>
+
 #include <assert.h>
+#include <err.h>
+#include <fcntl.h>
 #include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 #include "libmdocml.h"
 #include "private.h"
 #include "ml.h"
 
 
-static	ssize_t		html_endtag(struct md_mbuf *, 
+/* TODO: allow head/tail-less invocations (just "div" start). */
+/* FIXME: free htmlq. */
+
+struct	htmlnode {
+	int		 tok;
+	enum md_ns	 ns;
+	int		*argc[ROFF_MAXLINEARG];
+	char		*argv[ROFF_MAXLINEARG];
+	struct htmlnode	*parent;
+};
+
+
+struct	htmlq {
+	struct htmlnode	*last;
+};
+
+
+static	void		htmlnode_free(struct htmlnode *);
+static	void		htmlnode_free(struct htmlnode *);
+
+static	int		html_loadcss(struct md_mbuf *, const char *);
+
+static	ssize_t		html_endtag(struct md_mbuf *, void *,
 				const struct md_args *, 
 				enum md_ns, int);
-static	ssize_t		html_begintag(struct md_mbuf *, 
+static	ssize_t		html_begintag(struct md_mbuf *, void *,
 				const struct md_args *, 
 				enum md_ns, int, 
 				const int *, const char **);
-static	int		html_begin(struct md_mbuf *, 
-				const struct md_args *);
+static	int		html_begin(struct md_mbuf *,
+	       			const struct md_args *, 
+				const struct tm *, 
+				const char *, const char *, 
+				const char *, const char *);
+static	int		html_printargs(struct md_mbuf *, int, 
+				const char *, const int *, 
+				const char **, size_t *);
 static	int		html_end(struct md_mbuf *, 
 				const struct md_args *);
-static	ssize_t		html_blocktagname(struct md_mbuf *,
-				const struct md_args *, int);
-static	ssize_t		html_blocktagargs(struct md_mbuf *,
+static	int		html_blocktagname(struct md_mbuf *,
+				const struct md_args *, int, size_t *);
+static	int		html_blocktagargs(struct md_mbuf *,
 				const struct md_args *, int,
-				const int *, const char **);
-static	ssize_t		html_inlinetagname(struct md_mbuf *,
-				const struct md_args *, int);
-static	ssize_t		html_inlinetagargs(struct md_mbuf *,
+				const int *, const char **, size_t *);
+static	int		html_blockheadtagname(struct md_mbuf *,
+				const struct md_args *, int, size_t *);
+static	int		html_blockheadtagargs(struct md_mbuf *,
 				const struct md_args *, int,
-				const int *, const char **);
+				const int *, const char **, size_t *);
+static	int		html_blockbodytagname(struct md_mbuf *,
+				const struct md_args *, int, size_t *);
+static	int		html_blockbodytagargs(struct md_mbuf *,
+				const struct md_args *, int,
+				const int *, const char **, size_t *);
+static	int		html_inlinetagname(struct md_mbuf *,
+				const struct md_args *, int, size_t *);
+static	int		html_inlinetagargs(struct md_mbuf *,
+				const struct md_args *, int,
+				const int *, const char **, size_t *);
 
 
+static int
+html_loadcss(struct md_mbuf *mbuf, const char *css)
+{
+	size_t		 res, bufsz;
+	char		*buf;
+	struct stat	 st;
+	int		 fd, c;
+	ssize_t		 ssz;
+
+	c = 0;
+	res = 0;
+	buf = NULL;
+
+	if (-1 == (fd = open(css, O_RDONLY, 0))) {
+		warn("%s", css);
+		return(0);
+	} 
+	
+	if (-1 == fstat(fd, &st)) {
+		warn("%s", css);
+		goto out;
+	}
+
+	bufsz = MAX(st.st_blksize, BUFSIZ);
+	if (NULL == (buf = malloc(bufsz))) {
+		warn("malloc");
+		goto out;
+	}
+
+	for (;;) {
+		if (-1 == (ssz = read(fd, buf, bufsz))) {
+			warn("%s", css);
+			goto out;
+		} else if (0 == ssz)
+			break;
+		if ( ! ml_nputs(mbuf, buf, (size_t)ssz, &res))
+			goto out;
+	}
+
+	c = 1;
+
+out:
+	if (-1 == close(fd)) {
+		warn("%s", css);
+		c = 0;
+	}
+
+	if (buf)
+		free(buf);
+
+	return(c);
+}
+
+
+/* ARGSUSED */
 static int 
-html_begin(struct md_mbuf *mbuf, const struct md_args *args)
+html_begin(struct md_mbuf *mbuf, const struct md_args *args,
+		const struct tm *tm, const char *os, 
+		const char *title, const char *section, 
+		const char *vol)
 {
+	const char	*preamble, *css, *trail;
+	char		 buf[512];
 	size_t		 res;
 
+	preamble =
+	"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n"
+	"    \"http://www.w3.org/TR/html4/strict.dtd\">\n"
+	"<html>\n"
+	"<head>\n"
+	"    <meta http-equiv=\"Content-Type\"\n"
+	"         content=\"text/html;charset=utf-8\">\n"
+	"    <meta name=\"resource-type\" content=\"document\">\n"
+	"    <title>Manual Page for %s(%s)</title>\n";
+
+	css = 
+	"    <link rel=\"stylesheet\" type=\"text/css\"\n"
+	"         href=\"%s\">\n";
+	trail = 
+	"</head>\n"
+	"<body>\n"
+	"<div class=\"mdoc\">\n";
+
 	res = 0;
-	if ( ! ml_puts(mbuf, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD "
-				"HTML 4.01//EN\" \"http://www.w3.org"
-				"/TR/html4/strict.dtd\">\n", &res))
+
+	(void)snprintf(buf, sizeof(buf) - 1,
+			preamble, title, section);
+
+	if ( ! ml_puts(mbuf, buf, &res))
 		return(0);
-	if ( ! ml_puts(mbuf, "<html>\n", &res))
+
+	assert(args->params.html.css);
+	if (HTML_CSS_EMBED & args->params.html.flags) {
+		if ( ! ml_puts(mbuf, "    <style type=\"text/css\"><!--\n", &res))
+			return(0);
+		if ( ! html_loadcss(mbuf, args->params.html.css))
+			return(0);
+		if ( ! ml_puts(mbuf, "    --!></style>\n", &res))
+			return(0);
+	} else {
+		(void)snprintf(buf, sizeof(buf) - 1, css, 
+				args->params.html.css);
+		if ( ! ml_puts(mbuf, buf, &res))
+			return(0);
+	}
+
+	if ( ! ml_puts(mbuf, trail, &res))
 		return(0);
-	if ( ! ml_puts(mbuf, "<head>\n", &res))
-		return(0);
-	if ( ! ml_puts(mbuf, " <title>Manual page</title>\n", &res))
-		return(0);
-	if ( ! ml_puts(mbuf, " <meta http-equiv=\"Content-Type\" "
-				"content=\"text/html; "
-				"charset=utf-8\">\n", &res))
-		return(0);
-	if ( ! ml_puts(mbuf, " <meta name=\"resource-type\" "
-				"content=\"document\">\n", &res))
-		return(0);
-	if ( ! ml_puts(mbuf, "</head>\n", &res))
-		return(0);
-	if ( ! ml_puts(mbuf, "<body>", &res))
-		return(0);
 
 	return(1);
 }
 
 
+/* ARGSUSED */
 static int 
 html_end(struct md_mbuf *mbuf, const struct md_args *args)
 {
 	size_t		 res;
 
 	res = 0;
-	if ( ! ml_puts(mbuf, "</body>\n</html>", &res))
+	if ( ! ml_puts(mbuf, "</div></body>\n</html>", &res))
 		return(0);
 
 	return(1);
 }
 
 
-static ssize_t
-html_blocktagname(struct md_mbuf *mbuf, 
-		const struct md_args *args, int tok)
+/* ARGSUSED */
+static int
+html_blockbodytagname(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, size_t *res)
 {
-	size_t		 res;
 
-	res = 0;
+	return(ml_puts(mbuf, "div", res));
+}
 
-	switch (tok) {
-	case (ROFF_Sh):
-		if ( ! ml_puts(mbuf, "blockquote", &res))
-			return(-1);
-		break;
-	case (ROFF_Bd):
-		if ( ! ml_puts(mbuf, "pre", &res))
-			return(-1);
-		break;
-	case (ROFF_Bl):
-		if ( ! ml_puts(mbuf, "ul", &res))
-			return(-1);
-		break;
-	case (ROFF_It):
-		if ( ! ml_puts(mbuf, "li", &res))
-			return(-1);
-		break;
-	default:
-		if ( ! ml_puts(mbuf, "div", &res))
-			return(-1);
-		break;
-	}
 
-	return((size_t)res);
+
+
+/* ARGSUSED */
+static int
+html_blockheadtagname(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, size_t *res)
+{
+
+	return(ml_puts(mbuf, "div", res));
 }
 
 
 /* ARGSUSED */
-static ssize_t
-html_blocktagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-		int tok, const int *argc, const char **argv)
+static int
+html_blocktagname(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, size_t *res)
 {
 
-	switch (tok) {
-	default:
+	return(ml_puts(mbuf, "div", res));
+}
+
+
+static int
+html_printargs(struct md_mbuf *mbuf, int tok, const char *ns,
+		const int *argc, const char **argv, size_t *res)
+{
+	int		 i, c;
+
+	if ( ! ml_puts(mbuf, " class=\"", res))
 		return(0);
+	if ( ! ml_puts(mbuf, ns, res))
+		return(0);
+	if ( ! ml_puts(mbuf, "-", res))
+		return(0);
+	if ( ! ml_puts(mbuf, toknames[tok], res))
+		return(0);
+	if ( ! ml_puts(mbuf, "\"", res))
+		return(0);
+
+	if (NULL == argv || NULL == argc)
+		return(1);
+	assert(argv && argc);
+	
+	/* FIXME: ignores values. */
+
+	for (i = 0; ROFF_ARGMAX != (c = argc[i]); i++) {
+		if (argv[i])
+			continue;
+		if ( ! ml_puts(mbuf, " class=\"", res))
+			return(0);
+		if ( ! ml_puts(mbuf, ns, res))
+			return(0);
+		if ( ! ml_puts(mbuf, "-", res))
+			return(0);
+		if ( ! ml_puts(mbuf, toknames[tok], res))
+			return(0);
+		if ( ! ml_puts(mbuf, "-", res))
+			return(0);
+		if ( ! ml_puts(mbuf, tokargnames[c], res))
+			return(0);
+		if ( ! ml_puts(mbuf, "\"", res))
+			return(0);
 	}
 
-	return(-1);
+	return(1);
 }
 
 
 /* ARGSUSED */
-static ssize_t
-html_inlinetagargs(struct md_mbuf *mbuf, const struct md_args *args, 
-		int tok, const int *argc, const char **argv)
+static int
+html_blockheadtagargs(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, 
+		const int *argc, const char **argv, size_t *res)
 {
 
+	return(html_printargs(mbuf, tok, "head", argc, argv, res));
+}
+
+
+/* ARGSUSED */
+static int
+html_blockbodytagargs(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, 
+		const int *argc, const char **argv, size_t *res)
+{
+
+	return(html_printargs(mbuf, tok, "body", argc, argv, res));
+}
+
+
+/* ARGSUSED */
+static int
+html_blocktagargs(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, 
+		const int *argc, const char **argv, size_t *res)
+{
+
+	return(html_printargs(mbuf, tok, "block", argc, argv, res));
+}
+
+
+/* ARGSUSED */
+static int
+html_inlinetagargs(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, 
+		const int *argc, const char **argv, size_t *res)
+{
+
+	return(html_printargs(mbuf, tok, "inline", argc, argv, res));
+}
+
+
+/* ARGSUSED */
+static int
+html_inlinetagname(struct md_mbuf *mbuf, 
+		const struct md_args *args, int tok, size_t *res)
+{
+
 	switch (tok) {
+	case (ROFF_Pp):
+		return(ml_puts(mbuf, "div", res));
 	default:
-		return(0);
+		return(ml_puts(mbuf, "span", res));
 	}
-
-	return(-1);
+	return(1);
 }
 
 
-static ssize_t
-html_inlinetagname(struct md_mbuf *mbuf, 
-		const struct md_args *args, int tok)
+static ssize_t 
+html_begintag(struct md_mbuf *mbuf, void *data,
+		const struct md_args *args, enum md_ns ns, 
+		int tok, const int *argc, const char **argv)
 {
 	size_t		 res;
+	struct htmlq	*q;
+	struct htmlnode	*node;
 
+	assert(ns != MD_NS_DEFAULT);
 	res = 0;
 
-	switch (tok) {
-	case (ROFF_Sh):
-		if ( ! ml_puts(mbuf, "h1", &res))
+	assert(data);
+	q = (struct htmlq *)data;
+
+	if (NULL == (node = calloc(1, sizeof(struct htmlnode)))) {
+		warn("calloc");
+		return(-1);
+	}
+
+	node->parent = q->last;
+	node->tok = tok;
+	node->ns = ns;
+
+	q->last = node;
+
+	switch (ns) {
+	case (MD_NS_BLOCK):
+		if ( ! html_blocktagname(mbuf, args, tok, &res))
 			return(-1);
+		if ( ! html_blocktagargs(mbuf, args, tok, 
+					argc, argv, &res))
+			return(-1);
 		break;
-	case (ROFF_Ss):
-		if ( ! ml_puts(mbuf, "h2", &res))
+	case (MD_NS_BODY):
+		if ( ! html_blockbodytagname(mbuf, args, tok, &res))
 			return(-1);
+		if ( ! html_blockbodytagargs(mbuf, args, tok, 
+					argc, argv, &res))
+			return(-1);
 		break;
+	case (MD_NS_HEAD):
+		if ( ! html_blockheadtagname(mbuf, args, tok, &res))
+			return(-1);
+		if ( ! html_blockheadtagargs(mbuf, args, tok, 
+					argc, argv, &res))
+			return(-1);
+		break;
 	default:
-		if ( ! ml_puts(mbuf, "span", &res))
+		if ( ! html_inlinetagname(mbuf, args, tok, &res))
 			return(-1);
+		if ( ! html_inlinetagargs(mbuf, args, tok, 
+					argc, argv, &res))
+			return(-1);
 		break;
 	}
 
@@ -186,35 +420,44 @@ html_inlinetagname(struct md_mbuf *mbuf, 
 
 
 static ssize_t 
-html_begintag(struct md_mbuf *mbuf, const struct md_args *args, 
-		enum md_ns ns, int tok, 
-		const int *argc, const char **argv)
+html_endtag(struct md_mbuf *mbuf, void *data,
+		const struct md_args *args, enum md_ns ns, int tok)
 {
+	size_t		 res;
+	struct htmlq	*q;
+	struct htmlnode	*node;
 
 	assert(ns != MD_NS_DEFAULT);
-	if (MD_NS_BLOCK == ns) {
-		if ( ! html_blocktagname(mbuf, args, tok))
-			return(0);
-		return(html_blocktagargs(mbuf, args, 
-					tok, argc, argv));
-	}
+	res = 0;
 
-	if ( ! html_inlinetagname(mbuf, args, tok))
-		return(0);
-	return(html_inlinetagargs(mbuf, args, tok, argc, argv));
-}
+	assert(data);
+	q = (struct htmlq *)data;
 
+	switch (ns) {
+	case (MD_NS_BLOCK):
+		if ( ! html_blocktagname(mbuf, args, tok, &res))
+			return(-1);
+		break;
+	case (MD_NS_BODY):
+		if ( ! html_blockbodytagname(mbuf, args, tok, &res))
+			return(-1);
+		break;
+	case (MD_NS_HEAD):
+		if ( ! html_blockheadtagname(mbuf, args, tok, &res))
+			return(-1);
+		break;
+	default:
+		if ( ! html_inlinetagname(mbuf, args, tok, &res))
+			return(-1);
+		break;
+	}
 
-static ssize_t 
-html_endtag(struct md_mbuf *mbuf, const struct md_args *args, 
-		enum md_ns ns, int tok)
-{
+	node = q->last;
+	q->last = node->parent;
 
-	assert(ns != MD_NS_DEFAULT);
-	if (MD_NS_BLOCK == ns)
-		return(html_blocktagname(mbuf, args, tok));
+	htmlnode_free(node);
 
-	return(html_inlinetagname(mbuf, args, tok));
+	return((ssize_t)res);
 }
 
 
@@ -238,8 +481,14 @@ void *
 md_init_html(const struct md_args *args,
 		struct md_mbuf *mbuf, const struct md_rbuf *rbuf)
 {
+	struct htmlq	*q;
 
-	return(mlg_alloc(args, rbuf, mbuf, html_begintag, 
+	if (NULL == (q = calloc(1, sizeof(struct htmlq)))) {
+		warn("calloc");
+		return(NULL);
+	}
+
+	return(mlg_alloc(args, q, rbuf, mbuf, html_begintag, 
 				html_endtag, html_begin, html_end));
 }