Vend::Interpolate -- Interchange tag interpolation routines
(no external use)
The Vend::Interpolate contains the majority of the Interchange Tag Language
implementation rouines. Historically, it contained the entire tag language
implementation for MiniVend, accounting for its name.
It contains most of the handler routines pointed to by Vend::Parse, which
accepts the parsing output of Vend::Parser. (Vend::Parser was originally based
on HTML::Parser 1.x).
There are two interpolative parsers in Vend::Interpolate,
-- these routines
parse the lists used in the widely employed [loop ..], [search-region ...],
[item-list], and [query ..] ITL tag constructs.
This module makes heavy use of precompiled regexes. You will notice variables
being used in the regular expression constructs. For example, $All is a a
synonym for "[\000-\377]*", $Some is equivalent to
"[\000-\377]*?", etc. This is not only for clarity of the regular
expression, but for speed.