hasabbrev

hasabbrev <string> <iterable>

Test whether a string is a prefix abbreviation of some element of an iterable.

Each element is tested with the same rule as isabbrev: <string> is a case-insensitive prefix of the element.

Arguments

• <string> — the abbreviation to look for.
• <iterable> — a list or any iterable. A bare string is not iterable; convert it first with words. The elements compared against are treated as strings.

Returns

A bool — true if <string> abbreviates some element, false otherwise (including when the iterable is empty).

Examples

after command (say) {
  do "say abbrev? [hasabbrev al [words "alpha beta"]]"
}

"al" is a prefix of "alpha", so [hasabbrev ...] evaluates to true and the mob says "abbrev? true."

after command (say) {
  require [hasabbrev $arg [alias $self]]
  do "say You named one of my keywords."
}

[alias $self] is the owner's keywords as a word iterable. The require guard lets the handler run only when what the actor typed ($arg) abbreviates one of those keywords.

See also

• ismember — membership by exact eq equality instead of abbreviation.
• isabbrev — the one-to-one abbreviation test this is built from.
• some — membership under an arbitrary predicate.
• Iterables and iterables · Strings