From d24668785067388288a9a1ce61c814bacc54e7f5 Mon Sep 17 00:00:00 2001
From: wl <wl>
Date: Wed, 6 Sep 2006 15:27:01 +0000
Subject: * src/roff/troff/env.cpp (environment::do_break): Insert zero-width
 space only if there is no previous space.  This fixes a bug which caused
 unwanted filling of the last line in a paragraph.  Thanks to Gunnar Ritter
 for an analysis.

---
 src/roff/troff/env.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/roff/troff/env.cpp b/src/roff/troff/env.cpp
index 25bde8a1..0f907be8 100644
--- a/src/roff/troff/env.cpp
+++ b/src/roff/troff/env.cpp
@@ -2336,8 +2336,10 @@ void environment::do_break(int do_spread)
     wrap_up_tab();
   if (line) {
     // this is so that hyphenation works
-    line = new space_node(H0, get_fill_color(), line);
-    space_total++;
+    if (line->nspaces() == 0) {
+      line = new space_node(H0, get_fill_color(), line);
+      space_total++;
+    }
     possibly_break_line(0, do_spread);
   }
   while (line != 0 && line->discardable()) {
-- 
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