5.9 Miscellaneous Utilities

procedure
(bytes-ci=? b1 b2) → boolean?
b1 : bytes?
b2 : bytes?

Compares two bytes case insensitively.

procedure
(url-replace-path proc u) → url?
proc : ((listof path/param?) . -> . (listof path/param?))
u : url?

Replaces the URL path of u with proc of the former path.

procedure
(url-path->string url-path) → string?
url-path : (listof path/param?)

Formats url-path as a string with "/" as a delimiter and no params.

procedure
(explode-path* p) → (listof path-piece?)
p : path-string?

Like normalize-path, but does not resolve symlinks.

procedure
(path-without-base base p) → (listof path-piece?)
base : path-string?
p : path-string?

Returns, as a list, the portion of p after base, assuming base is a prefix of p.

procedure
(directory-part p) → path?
p : path-string?

Returns the directory part of p, returning (current-directory) if it is relative.

procedure
(build-path-unless-absolute base p) → path?
base : path-string?
p : path-string?

Prepends base to p, unless p is absolute.

procedure
(network-error s fmt v ...) → void
  s : symbol?
  fmt : string?
  v : any/c

procedure
(exn->string exn) → string?
exn : (or/c exn? any/c)

Formats exn with (error-display-handler) as a string.

procedure
(read/bytes bstr) → printable/c
bstr : bytes?

Extracts a value from bstr using read.

procedure
(write/bytes v) → bytes?
v : printable/c

Prints v into a byte string using write.

value
path-piece? : contract?

Equivalent to (or/c path-string? (symbols 'up 'same)).