===================================================================
RCS file: /cvs/texi2mdoc/util.c,v
retrieving revision 1.10
retrieving revision 1.12
diff -u -p -r1.10 -r1.12
--- texi2mdoc/util.c	2015/02/23 15:09:09	1.10
+++ texi2mdoc/util.c	2015/02/23 22:50:11	1.12
@@ -1,4 +1,4 @@
-/*	$Id: util.c,v 1.10 2015/02/23 15:09:09 kristaps Exp $ */
+/*	$Id: util.c,v 1.12 2015/02/23 22:50:11 kristaps Exp $ */
 /*
  * Copyright (c) 2015 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -43,7 +43,10 @@ texifilepop(struct texi *p)
 
 	assert(p->filepos > 0);
 	f = &p->files[--p->filepos];
-	munmap(f->map, f->mapsz);
+	if (TEXISRC_FILE == f->type)
+		munmap(f->map, f->mapsz);
+	else
+		free(f->map);
 }
 
 static void
@@ -421,10 +424,11 @@ static void
 texiexecmacro(struct texi *p, struct teximacro *m,
 	const char *buf, size_t sz, size_t *pos)
 {
-	size_t	  valsz, realsz, aasz, asz, 
-		  ssz, i, j, k, start, end;
-	char	 *val;
-	char	**args;
+	size_t		  valsz, realsz, aasz, asz, 
+			   ssz, i, j, k, start, end;
+	char		 *val;
+	char		**args;
+	const char	 *cp;
 
 	args = argparse(p, buf, sz, pos, &asz, m->argsz);
 	if (asz != m->argsz)
@@ -494,7 +498,10 @@ texiexecmacro(struct texi *p, struct teximacro *m,
 				texiabort(p, NULL);
 		}
 
-		j = strlcat(val, args[k], valsz + 1);
+		for (cp = args[k]; '\0' != *cp; cp++) 
+			val[j++] = *cp;
+
+		val[j] = '\0';
 		i = end;
 	}
 
@@ -951,6 +958,47 @@ parseto(struct texi *p, const char *buf, 
 }
 
 /*
+ * Like parsefile() but used for reading from stdandard input.
+ * This can only be called for the first file!
+ */
+void
+parsestdin(struct texi *p)
+{
+	struct texifile	*f;
+	size_t		 off;
+	ssize_t		 ssz;
+
+	assert(0 == p->filepos);
+	f = &p->files[p->filepos];
+	memset(f, 0, sizeof(struct texifile));
+
+	f->type = TEXISRC_STDIN;
+	f->name = "<stdin>";
+
+	for (off = 0; ; off += (size_t)ssz) {
+		if (off == f->mapsz) {
+			if (f->mapsz == (1U << 31))
+				texierr(p, "stdin buffer too long");
+			f->mapsz = f->mapsz > 65536 / 2 ? 
+				2 * f->mapsz : 65536;
+			f->map = realloc(f->map, f->mapsz);
+			if (NULL == f->map) 
+				texiabort(p, NULL);
+		}
+		ssz = read(STDIN_FILENO, 
+			f->map + (int)off, f->mapsz - off);
+		if (0 == ssz)
+			break;
+		else if (-1 == ssz) 
+			texiabort(p, NULL);
+	}
+
+	p->filepos++;
+	parseeof(p, f->map, off);
+	texifilepop(p);
+}
+
+/*
  * Memory-map the file "fname" and begin parsing it unless "parse" is
  * zero, in which case we just dump the file to stdout (making sure it
  * doesn't trip up mdoc(7) along the way).
@@ -969,6 +1017,7 @@ parsefile(struct texi *p, const char *fname, int parse
 	f = &p->files[p->filepos];
 	memset(f, 0, sizeof(struct texifile));
 
+	f->type = TEXISRC_FILE;
 	f->name = fname;
 	if (-1 == (fd = open(fname, O_RDONLY, 0))) {
 		texiabort(p, fname);
@@ -1221,8 +1270,6 @@ argparse(struct texi *p, const char *buf, 
 		/* Test for zero-length '{  }'. */
 		if (start == end && '}' == buf[*pos] && 0 == *argsz)
 			break;
-		if (start == end)
-			texierr(p, "zero-length argument");
 		/* FIXME: use reallocarray. */
 		args = realloc
 			(args, sizeof(char *) *