Improve the PgUp/PgDn scrolling

When on the first/last line containing a selectable word, PgUp/PgDn will
move the window to show the maximum number of non selectable lines while
keeping the cursor in the window.

6 files changed, 54 insertions, 10 deletions

diff --git a/tests/scrolling/data7 b/tests/scrolling/data7
new file mode 100644
index 0000000..dd80bc8
--- /dev/null
+++ b/tests/scrolling/data7
@@ -0,0 +1,20 @@
+     0	a a a a a
+     1	a a a a a
+     2	a a a a a
+     3	a a a a a
+     4	a a a a a
+     5	a a a a a
+     6	b b b a a
+     7	a a a a a
+     8	b b b b b
+     9	b b b b b
+    10	b b b b b
+    11	b b b b b
+    12	a a a a a
+    13	b b b b b
+    14	a a a a a
+    15	a a a a a
+    16	a a a a a
+    17	a a a a a
+    18	a a a a a
+    19	a a a a a
diff --git a/tests/scrolling/t0005.good b/tests/scrolling/t0005.good
index bd94555..fe06086 100644
--- a/tests/scrolling/t0005.good
+++ b/tests/scrolling/t0005.good
@@ -1,14 +1,14 @@
 $ OUT=$(LC_ALL=en_US smenu -R 7,13 -c t0005.in)
 
-10 b b b b b  ^
-0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
-11 a a a a a  |
+11 a a a a a  ^
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
 12 a a a a a  |
 5:07 14:20 
-13 a a a a a  +
+13 a a a a a  |
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
+14 a a a a a  +
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
-14 a a a a a  v
+15 a a a a a  /
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
 $ 
 
diff --git a/tests/scrolling/t0006.good b/tests/scrolling/t0006.good
index bb2c605..704583c 100644
--- a/tests/scrolling/t0006.good
+++ b/tests/scrolling/t0006.good
@@ -1,14 +1,14 @@
 $ OUT=$(LC_ALL=en_US smenu -R 6,18,20 -c t0006.in)
 
-4  a a a a a a a a  ^
+3  a a a a a a a a  ^
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 13:24 15:24 17:24 20:20 
-5  a a a a a a a a  +
+4  a a a a a a a a  +
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 13:24 15:24 17:24 20:20 
+5  a a a a a a a a  |
 5:07 20:20 
 6  a a a a a a a a  |
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 13:24 15:24 17:24 20:20 
-7  a a a a a a a a  |
-0:24 1:24 3:24 5:24 7:24 9:24 11:24 13:24 15:24 17:24 20:20 
-8  a a a a a a a a  v
+7  a a a a a a a a  v
 0:24 1:24 3:24 5:24 7:24 9:24 11:24 13:24 15:24 17:24 20:20 
 $ 
 
diff --git a/tests/scrolling/t0011.good b/tests/scrolling/t0011.good
new file mode 100644
index 0000000..5716b76
--- /dev/null
+++ b/tests/scrolling/t0011.good
@@ -0,0 +1,19 @@
+$ OUT=$(LC_ALL=en_US smenu -c -e a -e '[0-9]' t0011.in)
+
+2  a a a a a  ^
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
+3  a a a a a  +
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
+4  a a a a a  |
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
+5  a a a a a  |
+0:24 1:24 3:24 5:24 7:24 9:24 11:24 14:20 
+6  b b b a a  v
+0:24 1:24 3:07 9:24 11:24 14:20 
+$ 
+
+$ echo ":$OUT:"
+
+:b:
+
+$ exit 0
diff --git a/tests/scrolling/t0011.in b/tests/scrolling/t0011.in
new file mode 120000
index 0000000..592b7e2
--- /dev/null
+++ b/tests/scrolling/t0011.in
@@ -0,0 +1 @@
+data7
\ No newline at end of file
diff --git a/tests/scrolling/t0011.tst b/tests/scrolling/t0011.tst
new file mode 100644
index 0000000..2bb67c5
--- /dev/null
+++ b/tests/scrolling/t0011.tst
@@ -0,0 +1,4 @@
+\S[150]\s[10]OUT=$(LC_ALL=en_US smenu -c -e a -e '[0-9]' t0011.in)
+\S[150]\s[150]JJJJKKKKK\r
+\S[150]\s[10]echo ":$\s[10]OUT:"
+exit 0