From a4e59b37021326e304c311825ba52a52b02bd9c0 Mon Sep 17 00:00:00 2001
From: Fazlul Shahriar <fshahriar@gmail.com>
Date: Tue, 7 Jan 2020 15:02:01 -0500
Subject: 9term: add a "look" menu item (#299)

Add a menu item which functions similar to acme's `Look` command.

This is copied from 9front. See:
https://code.9front.org/hg/plan9front/rev/1f1596dbca51
https://code.9front.org/hg/plan9front/rev/d2de1d2f7b48
---
 src/cmd/9term/wind.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'src/cmd/9term/wind.c')

diff --git a/src/cmd/9term/wind.c b/src/cmd/9term/wind.c
index 7dc20443..d47e8467 100644
--- a/src/cmd/9term/wind.c
+++ b/src/cmd/9term/wind.c
@@ -906,6 +906,31 @@ winborder(Window *w, Point xy)
 	return ptinrect(xy, w->screenr) && !ptinrect(xy, insetrect(w->screenr, wscale(w, Selborder)));
 }
 
+void
+wlook(Window *w)
+{
+	int i, n, e;
+
+	i = w->q1;
+	n = i - w->q0;
+	e = w->nr - n;
+	if(n <= 0 || e < n)
+		return;
+
+	if(i > e)
+		i = 0;
+
+	while(runestrncmp(w->r+w->q0, w->r+i, n) != 0){
+		if(i < e)
+			i++;
+		else
+			i = 0;
+	}
+
+	wsetselect(w, i, i+n);
+	wshow(w, i);
+}
+
 void
 wmousectl(Window *w)
 {
-- 
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