2003-01-11 05:06:25

by Kevin P. Fleming

[permalink] [raw]
Subject: [PATCH] Documentation error for kconfig

Unless I'm not thinking clearly, the attached patch for
Documentation/kbuild/kconfig-language.txt is in order. The min/max
equivalences for the || and && operators are backwards...

(Apologies if Mozilla munges the patch... it's small enough to be easily
recreatable anyway).

diff -X dontdiff -rN -U 15
linux-2.5/Documentation/kbuild/kconfig-language.txt
linux-2.5-new/Documentation/kbuild/kconfig-language.txt
--- linux-2.5/Documentation/kbuild/kconfig-language.txt Wed Jan 1
20:21:41 2003
+++ linux-2.5-new/Documentation/kbuild/kconfig-language.txt Fri Jan 10
22:08:23 2003
@@ -111,32 +111,32 @@
'!' <expr> (5)
<expr> '||' <expr> (6)
<expr> '&&' <expr> (7)

Expressions are listed in decreasing order of precedence.

(1) Convert the symbol into an expression. Boolean and tristate symbols
are simply converted into the respective expression values. All
other symbol types result in 'n'.
(2) If the values of both symbols are equal, it returns 'y',
otherwise 'n'.
(3) If the values of both symbols are equal, it returns 'n',
otherwise 'y'.
(4) Returns the value of the expression. Used to override precedence.
(5) Returns the result of (2-/expr/).
-(6) Returns the result of min(/expr/, /expr/).
-(7) Returns the result of max(/expr/, /expr/).
+(6) Returns the result of max(/expr/, /expr/).
+(7) Returns the result of min(/expr/, /expr/).

An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2
respectively for calculations). A menu entry becomes visible when it's
expression evaluates to 'm' or 'y'.

There are two type of symbols: constant and nonconstant symbols.
Nonconstant symbols are the most common ones and are defined with the
'config' statement. Nonconstant symbols consist entirely of alphanumeric
characters or underscores.
Constant symbols are only part of expressions. Constant symbols are
always surrounded by single or double quotes. Within the quote any
other character is allowed and the quotes can be escaped using '\'.

Menu structure
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