string-to-bool.fish: coerces strings into fixed true/false values

gistpkg.zpl

name = string-to-bool

author = Chris Olstrom

license = MIT

provides = fish/functions/string-to-bool

requires
    fish/builtin/case
    fish/builtin/echo
    fish/builtin/end
    fish/builtin/false
    fish/builtin/function
    fish/builtin/return
    fish/builtin/string
    fish/builtin/switch
    fish/builtin/true
    fish/functions/string-to-bool

string-to-bool.fish

function string-to-bool --argument string
    switch "$string"
        case false nil
            echo false
            return 1
        case '*'
            echo true
            return 0
    end
end