Jump to content

Rebol Programming/exists?

From Wikibooks, open books for an open world

USAGE:

[edit | edit source]
EXISTS? target 

DESCRIPTION:

[edit | edit source]

Determines if a file or URL exists.

EXISTS? is a function value.

ARGUMENTS

[edit | edit source]
  • target -- (Type: file url)

SOURCE CODE

[edit | edit source]
exists?: func [
  "Determines if a file or URL exists." 
  target [file! url!] 
  /local ret
][
  either error? try [
    target: make port! target 
    query target
  ] [false] [found? target/status]
]