===================================================================
RCS file: /cvs/mandoc/mdoc.c,v
retrieving revision 1.124
retrieving revision 1.128
diff -u -p -r1.124 -r1.128
--- mandoc/mdoc.c	2010/05/07 15:49:36	1.124
+++ mandoc/mdoc.c	2010/05/12 16:01:01	1.128
@@ -1,4 +1,4 @@
-/*	$Id: mdoc.c,v 1.124 2010/05/07 15:49:36 kristaps Exp $ */
+/*	$Id: mdoc.c,v 1.128 2010/05/12 16:01:01 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -542,7 +542,7 @@ mdoc_word_alloc(struct mdoc *m, int line, int pos, con
 
 	len = strlen(p);
 
-	n = node_alloc(m, line, pos, -1, MDOC_TEXT);
+	n = node_alloc(m, line, pos, MDOC_MAX, MDOC_TEXT);
 	n->string = mandoc_malloc(len + 1);
 	sv = strlcpy(n->string, p, len + 1);
 
@@ -665,29 +665,65 @@ mdoc_ptext(struct mdoc *m, int line, char *buf)
 		return(1);
 	}
 
-	/* Warn if the last un-escaped character is whitespace. */
+	/* 
+	 * Warn if the last un-escaped character is whitespace. Then
+	 * strip away the remaining spaces (tabs stay!).   
+	 */
 
 	i = (int)strlen(buf);
 	assert(i);
 
-	if (' ' == buf[i - 1] || '\t' == buf[i - 1])
-		if (1 == i || ('\\' != buf[i - 2]))
+	if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
+		if (i > 1 && '\\' != buf[i - 2])
 			if ( ! mdoc_pwarn(m, line, i - 1, ETAILWS))
 				return(0);
 
+		for (--i; i && ' ' == buf[i]; i--)
+			/* Spin back to non-space. */ ;
+
+		/* Jump ahead of escaped whitespace. */
+		i += '\\' == buf[i] ? 2 : 1;
+
+		buf[i] = '\0';
+	}
+
 	/* Allocate the whole word. */
 
-	return(mdoc_word_alloc(m, line, 0, buf));
-}
+	if ( ! mdoc_word_alloc(m, line, 0, buf))
+		return(0);
 
+	/*
+	 * End-of-sentence check.  If the last character is an unescaped
+	 * EOS character, then flag the node as being the end of a
+	 * sentence.  The front-end will know how to interpret this.
+	 */
 
+	assert(i);
 
+	switch (buf[i - 1]) {
+	case ('.'):
+		if (i > 1 && '\\' == buf[i - 2])
+			break;
+		/* FALLTHROUGH */
+	case ('!'):
+		/* FALLTHROUGH */
+	case ('?'):
+		m->last->flags |= MDOC_EOS;
+		break;
+	default:
+		break;
+
+	}
+
+	return(1);
+}
+
+
 static int
 macrowarn(struct mdoc *m, int ln, const char *buf)
 {
 	if ( ! (MDOC_IGN_MACRO & m->pflags))
-		return(mdoc_verr(m, ln, 0, 
-				"unknown macro: %s%s", 
+		return(mdoc_verr(m, ln, 0, "unknown macro: %s%s", 
 				buf, strlen(buf) > 3 ? "..." : ""));
 	return(mdoc_vwarn(m, ln, 0, "unknown macro: %s%s",
 				buf, strlen(buf) > 3 ? "..." : ""));
@@ -701,8 +737,9 @@ macrowarn(struct mdoc *m, int ln, const char *buf)
 int
 mdoc_pmacro(struct mdoc *m, int ln, char *buf)
 {
-	int		  i, j, c;
-	char		  mac[5];
+	enum mdoct	tok;
+	int		i, j;
+	char		mac[5];
 
 	/* Empty lines are ignored. */
 
@@ -744,7 +781,7 @@ mdoc_pmacro(struct mdoc *m, int ln, char *buf)
 		return(1);
 	} 
 	
-	if (MDOC_MAX == (c = mdoc_hash_find(mac))) {
+	if (MDOC_MAX == (tok = mdoc_hash_find(mac))) {
 		if ( ! macrowarn(m, ln, mac))
 			goto err;
 		return(1);
@@ -755,7 +792,10 @@ mdoc_pmacro(struct mdoc *m, int ln, char *buf)
 	while (buf[i] && ' ' == buf[i])
 		i++;
 
-	/* Trailing whitespace? */
+	/* 
+	 * Trailing whitespace.  Note that tabs are allowed to be passed
+	 * into the parser as "text", so we only warn about spaces here.
+	 */
 
 	if ('\0' == buf[i] && ' ' == buf[i - 1])
 		if ( ! mdoc_pwarn(m, ln, i - 1, ETAILWS))
@@ -765,7 +805,7 @@ mdoc_pmacro(struct mdoc *m, int ln, char *buf)
 	 * Begin recursive parse sequence.  Since we're at the start of
 	 * the line, we don't need to do callable/parseable checks.
 	 */
-	if ( ! mdoc_macro(m, c, ln, 1, &i, buf)) 
+	if ( ! mdoc_macro(m, tok, ln, 1, &i, buf)) 
 		goto err;
 
 	return(1);