===================================================================
RCS file: /cvs/mandoc/html.c,v
retrieving revision 1.53
retrieving revision 1.59
diff -u -p -r1.53 -r1.59
--- mandoc/html.c	2009/10/03 15:08:09	1.53
+++ mandoc/html.c	2009/10/07 14:39:00	1.59
@@ -1,4 +1,4 @@
-/*	$Id: html.c,v 1.53 2009/10/03 15:08:09 kristaps Exp $ */
+/*	$Id: html.c,v 1.59 2009/10/07 14:39:00 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -20,10 +20,12 @@
 #include <assert.h>
 #include <err.h>
 #include <stdio.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+#include "out.h"
 #include "chars.h"
 #include "html.h"
 
@@ -73,6 +75,8 @@ static	const char	 *const htmlattrs[ATTR_MAX] = {
 	"style",
 	"width",
 	"valign",
+	"target",
+	"id",
 };
 
 #ifdef __linux__
@@ -87,7 +91,8 @@ html_alloc(char *outopts)
 
 	toks[0] = "style";
 	toks[1] = "man";
-	toks[2] = NULL;
+	toks[2] = "includes";
+	toks[3] = NULL;
 
 	if (NULL == (h = calloc(1, sizeof(struct html))))
 		return(NULL);
@@ -100,8 +105,6 @@ html_alloc(char *outopts)
 		return(NULL);
 	}
 
-	h->base_man = "%N.%S.html";
-
 	while (outopts && *outopts)
 		switch (getsubopt(&outopts, toks, &v)) {
 		case (0):
@@ -110,6 +113,9 @@ html_alloc(char *outopts)
 		case (1):
 			h->base_man = v;
 			break;
+		case (2):
+			h->base_includes = v;
+			break;
 		default:
 			break;
 		}
@@ -139,8 +145,6 @@ html_free(void *p)
 		free(tag);
 	}
 	
-	if (h->buf)
-		free(h->buf);
 	if (h->symtab)
 		chars_free(h->symtab);
 
@@ -483,4 +487,154 @@ print_stagq(struct html *h, const struct tag *suntil)
 		SLIST_REMOVE_HEAD(&h->tags, entry);
 		free(tag);
 	}
+}
+
+
+void
+bufinit(struct html *h)
+{
+
+	h->buf[0] = '\0';
+	h->buflen = 0;
+}
+
+
+void
+bufcat_style(struct html *h, const char *key, const char *val)
+{
+
+	bufcat(h, key);
+	bufncat(h, ":", 1);
+	bufcat(h, val);
+	bufncat(h, ";", 1);
+}
+
+
+void
+bufcat(struct html *h, const char *p)
+{
+
+	bufncat(h, p, strlen(p));
+}
+
+
+void
+buffmt(struct html *h, const char *fmt, ...)
+{
+	va_list		 ap;
+
+	va_start(ap, fmt);
+	(void)vsnprintf(h->buf + (int)h->buflen, 
+			BUFSIZ - h->buflen - 1, fmt, ap);
+	va_end(ap);
+	h->buflen = strlen(h->buf);
+}
+
+
+void
+bufncat(struct html *h, const char *p, size_t sz)
+{
+
+	if (h->buflen + sz > BUFSIZ - 1)
+		sz = BUFSIZ - 1 - h->buflen;
+
+	(void)strncat(h->buf, p, sz);
+	h->buflen += sz;
+}
+
+
+void
+buffmt_includes(struct html *h, const char *name)
+{
+	const char	*p, *pp;
+
+	pp = h->base_includes;
+	while ((p = strchr(pp, '%'))) {
+		bufncat(h, pp, (size_t)(p - pp));
+		switch (*(p + 1)) {
+		case('I'):
+			bufcat(h, name);
+			break;
+		default:
+			bufncat(h, p, 2);
+			break;
+		}
+		pp = p + 2;
+	}
+	if (pp)
+		bufcat(h, pp);
+}
+
+
+void
+buffmt_man(struct html *h, 
+		const char *name, const char *sec)
+{
+	const char	*p, *pp;
+
+	pp = h->base_man;
+	while ((p = strchr(pp, '%'))) {
+		bufncat(h, pp, (size_t)(p - pp));
+		switch (*(p + 1)) {
+		case('S'):
+			bufcat(h, sec ? sec : "1");
+			break;
+		case('N'):
+			buffmt(h, name);
+			break;
+		default:
+			bufncat(h, p, 2);
+			break;
+		}
+		pp = p + 2;
+	}
+	if (pp)
+		bufcat(h, pp);
+}
+
+
+void
+bufcat_su(struct html *h, const char *p, const struct roffsu *su)
+{
+	int		 v;
+	char		*u;
+
+	v = su->scale;
+
+	switch (su->unit) {
+	case (SCALE_CM):
+		u = "cm";
+		break;
+	case (SCALE_IN):
+		u = "in";
+		break;
+	case (SCALE_PC):
+		u = "pc";
+		break;
+	case (SCALE_PT):
+		u = "pt";
+		break;
+	case (SCALE_EM):
+		u = "em";
+		break;
+	case (SCALE_MM):
+		if (0 == (v /= 100))
+			v = 1;
+		u = "em";
+		break;
+	case (SCALE_EN):
+		u = "ex";
+		break;
+	case (SCALE_BU):
+		u = "ex";
+		break;
+	case (SCALE_VS):
+		u = "em";
+		break;
+	default:
+		u = "ex";
+		break;
+	}
+
+	buffmt(h, "%s: %d%s;", p, v, u);
 }