Strip trailing, unescaped whitespace from free-form, non-literal lines (like groff).

1 files changed, 18 insertions, 4 deletions

diff --git a/man.c b/man.c
index a92fac8d..385ccaf5 100644
--- a/man.c
+++ b/man.c
@@ -1,4 +1,4 @@
-/*	$Id: man.c,v 1.62 2010/05/08 07:30:19 kristaps Exp $ */
+/*	$Id: man.c,v 1.63 2010/05/08 08:36:44 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -395,16 +395,30 @@ man_ptext(struct man *m, int line, char *buf)
 		goto descope;
 	}
 
-	/* 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]) {
+		assert(i > 1);
+		if ('\\' != buf[i - 2])
 			if ( ! man_pwarn(m, line, i - 1, WTSPACE))
 				return(0);
 
+		for (--i; i && ' ' == buf[i]; i--)
+			/* Spin back to non-space. */ ;
+
+		/* Jump ahead of escaped whitespace. */
+		assert(i);
+		i += '\\' == buf[i] ? 2 : 1;
+
+		buf[i] = '\0';
+	}
+
 	if ( ! man_word_alloc(m, line, 0, buf))
 		return(0);