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6_functions
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afterw
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2001-03-21
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Synopsis:
$afterw(<word> <text>)
$beforew(<word> <text>)
Technical:
These functions return their input string, minus all words up to the
given word ($beforew()) or following the given word ($afterw()). They
are analogous to $after() and $before(), operating on whole words
instead of characters. They search only for the first occurrence of the
given word.
Practical:
These return the part of the input text that is before or after the
first instance of the given word. This is probably most useful for
internal parsing inside scripts; a variable might hold certain
parameters, of which only certain ones might be useful at a particular
time. If the given word does not appear in the input text, nothing
is returned.
Returns:
afterw: input list after first instance of given word
beforew: input list before first instance of given word
Examples:
$afterw(foobar one two foobar my shoe) returns "my shoe"
$afterw(booya one two foobar my shoe) returns "" (empty string)
$beforew(foobar one two foobar my shoe) returns "one two"
$beforew(booya one two foobar my shoe) returns "" (empty string)