patch 7.4.2221
Problem: printf() does not support binary format.
Solution: Add %b and %B. (Ozaki Kiichi)
diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim
index e835854..a7ad65e 100644
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -163,6 +163,23 @@
call assert_equal(string(function('printf', ['%s'])), printf('%s', function('printf', ['%s'])))
endfunc
+function Test_printf_spec_b()
+ call assert_equal("0", printf('%b', 0))
+ call assert_equal("00001100", printf('%08b', 12))
+ call assert_equal("11111111", printf('%08b', 0xff))
+ call assert_equal(" 1111011", printf('%10b', 123))
+ call assert_equal("0001111011", printf('%010b', 123))
+ call assert_equal(" 0b1111011", printf('%#10b', 123))
+ call assert_equal("0B01111011", printf('%#010B', 123))
+ call assert_equal("1001001100101100000001011010010", printf('%b', 1234567890))
+ if has('num64')
+ call assert_equal("11100000100100010000110000011011101111101111001", printf('%b', 123456789012345))
+ call assert_equal("1111111111111111111111111111111111111111111111111111111111111111", printf('%b', -1))
+ else
+ call assert_equal("11111111111111111111111111111111", printf('%b', -1))
+ endif
+endfunc
+
func Test_substitute_expr()
let g:val = 'XXX'
call assert_equal('XXX', substitute('yyy', 'y*', '\=g:val', ''))