Jholsenback: preserving some markup

2016-12-13T17:59:58Z

preserving some markup

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preserving some deleted markup:

{{New}} in version 3.7.1: To circumvent the pitfalls of identifier name collisions,
two pseudo-functions are provided to specifically refer to identifiers
at either the global or the most local scope:
<pre>
IDENTIFIER:
GLOBAL_IDENTIFIER | LOCAL_IDENTIFIER | GENERIC_IDENTIFIER
GLOBAL_IDENTIFIER:
global ( GENERIC_IDENTIFIER )
LOCAL_IDENTIFIER:
local ( GENERIC_IDENTIFIER )
</pre>
Both pseudo-functions can be used anywhere an identifier is allowed.
They do not simply retrieve the cooresponding value, but refer to the
identifiers themselves, allowing for constructs like the following:
<pre>
#ifdef(local(Foo))
#declare global(Foo) = Foo;
#else
#undef global(Foo)
#end
</pre>
This example tests whether the identifier <code>Foo</code> is in use
at the most local scope, and if so, copies its value to the global variable
of the same name; otherwise, it discards any value the global variable may
have held before.

Reference Talk:Declare and Local Directives - Revision history

Jholsenback: preserving some markup