===================================================================
RCS file: /cvs/mandoc/read.c,v
retrieving revision 1.14
retrieving revision 1.21
diff -u -p -r1.14 -r1.21
--- mandoc/read.c	2011/04/30 10:18:24	1.14
+++ mandoc/read.c	2011/07/21 23:30:39	1.21
@@ -1,4 +1,4 @@
-/*	$Id: read.c,v 1.14 2011/04/30 10:18:24 kristaps Exp $ */
+/*	$Id: read.c,v 1.21 2011/07/21 23:30:39 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -19,8 +19,10 @@
 #include "config.h"
 #endif
 
-#include <sys/stat.h>
-#include <sys/mman.h>
+#ifdef HAVE_MMAP
+# include <sys/stat.h>
+# include <sys/mman.h>
+#endif
 
 #include <assert.h>
 #include <ctype.h>
@@ -57,7 +59,6 @@ struct	mparse {
 	struct man	 *man; /* man parser */
 	struct mdoc	 *mdoc; /* mdoc parser */
 	struct roff	 *roff; /* roff parser (!NULL) */
-	struct regset	  regs; /* roff registers */
 	int		  reparse_count; /* finite interp. stack */
 	mandocmsg	  mmsg; /* warning/error message handler */
 	void		 *arg; /* argument to mmsg */
@@ -144,9 +145,21 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = 
 	"bad comment style",
 	"bad escape sequence",
 	"unterminated quoted string",
+
+	/* related to equations */
+	"unexpected literal in equation",
 	
 	"generic error",
 
+	/* related to equations */
+	"bad equation macro syntax",
+	"too many nested equation defines",
+	"unexpected equation scope closure",
+	"equation scope open on exit",
+	"overlapping equation scopes",
+	"unexpected end of equation",
+	"equation syntax error",
+
 	/* related to tables */
 	"bad table syntax",
 	"bad table option",
@@ -235,13 +248,13 @@ pset(const char *buf, int pos, struct mparse *curp)
 	switch (curp->inttype) {
 	case (MPARSE_MDOC):
 		if (NULL == curp->pmdoc) 
-			curp->pmdoc = mdoc_alloc(&curp->regs, curp);
+			curp->pmdoc = mdoc_alloc(curp->roff, curp);
 		assert(curp->pmdoc);
 		curp->mdoc = curp->pmdoc;
 		return;
 	case (MPARSE_MAN):
 		if (NULL == curp->pman) 
-			curp->pman = man_alloc(&curp->regs, curp);
+			curp->pman = man_alloc(curp->roff, curp);
 		assert(curp->pman);
 		curp->man = curp->pman;
 		return;
@@ -251,14 +264,14 @@ pset(const char *buf, int pos, struct mparse *curp)
 
 	if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3))  {
 		if (NULL == curp->pmdoc) 
-			curp->pmdoc = mdoc_alloc(&curp->regs, curp);
+			curp->pmdoc = mdoc_alloc(curp->roff, curp);
 		assert(curp->pmdoc);
 		curp->mdoc = curp->pmdoc;
 		return;
 	} 
 
 	if (NULL == curp->pman) 
-		curp->pman = man_alloc(&curp->regs, curp);
+		curp->pman = man_alloc(curp->roff, curp);
 	assert(curp->pman);
 	curp->man = curp->pman;
 }
@@ -529,19 +542,22 @@ pdesc(struct mparse *curp, const char *file, int fd)
 
 	mparse_buf_r(curp, blk, 1);
 
+#ifdef	HAVE_MMAP
 	if (with_mmap)
 		munmap(blk.buf, blk.sz);
 	else
+#endif
 		free(blk.buf);
 }
 
 static int
 read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
 {
-	struct stat	 st;
 	size_t		 off;
 	ssize_t		 ssz;
 
+#ifdef	HAVE_MMAP
+	struct stat	 st;
 	if (-1 == fstat(fd, &st)) {
 		perror(file);
 		return(0);
@@ -566,6 +582,7 @@ read_whole_file(const char *file, int fd, struct buf *
 		if (fb->buf != MAP_FAILED)
 			return(1);
 	}
+#endif
 
 	/*
 	 * If this isn't a regular file (like, say, stdin), then we must
@@ -675,15 +692,13 @@ mparse_alloc(enum mparset inttype, enum mandoclevel wl
 	curp->arg = arg;
 	curp->inttype = inttype;
 
-	curp->roff = roff_alloc(&curp->regs, curp);
+	curp->roff = roff_alloc(curp);
 	return(curp);
 }
 
 void
 mparse_reset(struct mparse *curp)
 {
-
-	memset(&curp->regs, 0, sizeof(struct regset));
 
 	roff_reset(curp->roff);