From: NeilBrown <neilb@suse.de>
Date: Tue, 20 Aug 2013 00:42:23 +0000 (+1000)
Subject: Browser: highlight spaces at the end of a line.
X-Git-Tag: v1.0~35
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=8b9fd4a997380129ceea8840a41e02e3380e2ab8;p=wiggle.git

Browser: highlight spaces at the end of a line.

Otherwise they are invisible.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/vpatch.c b/vpatch.c
index a0231d0..b5166b2 100644
--- a/vpatch.c
+++ b/vpatch.c
@@ -977,6 +977,13 @@ static void draw_mside(int mode, int row, int offset, int start, int cols,
 			for (l = 0; l < e.plen + e.prefix; l++)
 				if (c[l] == '\t')
 					highlight_space = 1;
+		if (!highlight_space && (c[0] == ' ' || c[0] == '\t')) {
+			/* always highlight space/tab at end-of-line */
+			struct mp nxt = pos.p;
+			struct elmnt nxte = next_melmnt(&nxt, fm, fb, fa, m);
+			if (nxte.start[0] == '\n')
+				highlight_space = 1;
+		}
 		for (l = 0; l < e.plen + e.prefix; l++) {
 			int scol = col;
 			if (*c == '\n')