display a highlighted space for zero-length regex matches, so that we

have a reference point when we're replacing them

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1601 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

diff --git a/ChangeLog b/ChangeLog
index 98192dcb74ff3e7057502da1fe54ac41c3878c80..9368f08db3e5b00001f91440d0521f1589675dcd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -119,6 +119,10 @@ CVS code -
        - Add a few efficiency/extensibility tweaks. (David Benbennick)
        - Convert to use the new low-level input functions, and remove
          two last hardcoded widths left after the above tweaks. (DLR)
+  do_replace_highlight()
+       - Display a highlighted space if the word length is zero, so
+         that we can see zero-length regexes we're replacing. (DLR;
+         suggested by Mike Frysinger)
 - configure.ac:
        - Check for glib 2.x and then 1.2.x if we need glib. (DLR)
 - nano.spec.in:

diff --git a/src/winio.c b/src/winio.c
index ec60a2fa7f51d8524fe65f275b097fbb56e8521c..a1a933e3ac46c009b30387dbd44203be393e04e5 100644 (file)
--- a/src/winio.c
+++ b/src/winio.c
@@ -2236,7 +2236,11 @@ void do_replace_highlight(int highlight_flag, const char *word)
     if (highlight_flag)
        wattron(edit, A_REVERSE);
 
-    waddnstr(edit, word, y - 1);
+    /* This is so we can show zero-length regexes. */
+    if (word_len == 0)
+       waddstr(edit, " ");
+    else
+       waddnstr(edit, word, y - 1);
 
     if (word_len > y)
        waddch(edit, '$');