Hi,
Recently Vim supported binary numbers, but it was not written in usr_41.txt.
Please check the attached patch.
Regards,
Ken Takata
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# HG changeset patch
# Parent b9bc5c44cccaeca348e2e0f703ec4847c54bc7d2
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -105,20 +105,21 @@ We won't explain how |:for| and |range()
if you are impatient.
-THREE KINDS OF NUMBERS
-
-Numbers can be decimal, hexadecimal or octal. A hexadecimal number starts
-with "0x" or "0X". For example "0x1f" is decimal 31. An octal number starts
-with a zero. "017" is decimal 15. Careful: don't put a zero before a decimal
-number, it will be interpreted as an octal number!
+FOUR KINDS OF NUMBERS
+
+Numbers can be decimal, hexadecimal, octal or binary. A hexadecimal number
+starts with "0x" or "0X". For example "0x1f" is decimal 31. An octal number
+starts with a zero. "017" is decimal 15. A binary number starts with "0b" or
+"0B". For example "0b101" is decimal 5. Careful: don't put a zero before a
+decimal number, it will be interpreted as an octal number!
The ":echo" command always prints decimal numbers. Example: >
:echo 0x7f 036
< 127 30 ~
-A number is made negative with a minus sign. This also works for hexadecimal
-and octal numbers. A minus sign is also used for subtraction. Compare this
-with the previous example: >
+A number is made negative with a minus sign. This also works for hexadecimal,
+octal and binary numbers. A minus sign is also used for subtraction. Compare
+this with the previous example: >
:echo 0x7f -036
< 97 ~
