On this page:
apply
prop:  procedure
open-input-file
open-output-file
open-input-output-file
with-input-from-file
with-output-to-file
call-with-input-file
call-with-output-file
syntax-object->datum
datum->syntax-object
module-identifier=?
module-transformer-identifier=?
module-template-identifier=?
module-label-identifier=?
free-identifier=?
make-namespace
namespace-transformer-require
transcript-on
transcript-off
hash-table?
make-hash-table
make-immutable-hash-table
hash-table-get
hash-table-put!
hash-table-remove!
hash-table-count
hash-table-copy
hash-table-map
hash-table-for-each
hash-table-iterate-first
hash-table-iterate-next
hash-table-iterate-value
hash-table-iterate-key
expand-path
list-immutable
collection-file-path
collection-path

2 Old Functions🔗

procedure

(apply proc v ... lst)  any

  proc : procedure?
  v : any/c
  lst : list?
Like apply from scheme/base, but without support for keyword arguments.

Like prop:procedure from scheme/base, but even if the property’s value for a structure type is a procedure that accepts keyword arguments, then instances of the structure type still do not accept keyword arguments. (In contrast, if the property’s value is an integer for a field index, then a keyword-accepting procedure in the field for an instance causes the instance to accept keyword arguments.)

procedure

(open-input-file file [mode module-mode])  input-port?

  file : path-string?
  mode : (one-of/c 'text 'binary) = 'binary
  module-mode : (or-of/c 'module 'none) = 'none

procedure

(open-output-file file [mode exists])  input-port?

  file : path-string?
  mode : (one-of/c 'text 'binary) = 'binary
  exists : 
(one-of/c 'error 'append 'update
          'replace 'truncate 'truncate/replace)
   = 'error

procedure

(open-input-output-file file [mode exists])

  
input-port? output-port?
  file : path-string?
  mode : (one-of/c 'text 'binary) = 'binary
  exists : 
(one-of/c 'error 'append 'update
          'replace 'truncate 'truncate/replace)
   = 'error

procedure

(with-input-from-file file thunk [mode])  any

  file : path-string?
  thunk : (-> any)
  mode : (one-of/c 'text 'binary) = 'binary

procedure

(with-output-to-file file thunk [mode exists])  any

  file : path-string?
  thunk : (-> any)
  mode : (one-of/c 'text 'binary) = 'binary
  exists : 
(one-of/c 'error 'append 'update
          'replace 'truncate 'truncate/replace)
   = 'error

procedure

(call-with-input-file file proc [mode])  any

  file : path-string?
  proc : (input-port? -> any)
  mode : (one-of/c 'text 'binary) = 'binary

procedure

(call-with-output-file file proc [mode exists])  any

  file : path-string?
  proc : (output-port? -> any)
  mode : (one-of/c 'text 'binary) = 'binary
  exists : 
(one-of/c 'error 'append 'update
          'replace 'truncate 'truncate/replace)
   = 'error
Like open-input-file, etc. from scheme/base, but the mode, exists, and module-mode (corresponds to #:for-module?) arguments are not keyword arguments. When both mode and exists or module-mode are accepted, they are accepted in either order.

Changed in version 6.0.1.6 of package compatibility-lib: Added the module-mode argument to open-input-file.

procedure

(syntax-object->datum stx)  any

  stx : syntax?

procedure

(datum->syntax-object ctxt v srcloc [prop cert])  syntax?

  ctxt : (or/c syntax? false/c)
  v : any/c
  srcloc : 
(or/c syntax? false/c
      (list/c any/c
              (or/c exact-positive-integer? false/c)
              (or/c exact-nonnegative-integer? false/c)
              (or/c exact-nonnegative-integer? false/c)
              (or/c exact-positive-integer? false/c))
      (vector/c any/c
                (or/c exact-positive-integer? false/c)
                (or/c exact-nonnegative-integer? false/c)
                (or/c exact-nonnegative-integer? false/c)
                (or/c exact-positive-integer? false/c)))
  prop : (or/c syntax? false/c) = #f
  cert : (or/c syntax? false/c) = #f
The same as syntax->datum and datum->syntax.

procedure

(module-identifier=? a-id b-id)  boolean?

  a-id : syntax?
  b-id : syntax?

procedure

(module-transformer-identifier=? a-id b-id)  boolean?

  a-id : syntax?
  b-id : syntax?

procedure

(module-template-identifier=? a-id b-id)  boolean?

  a-id : syntax?
  b-id : syntax?

procedure

(module-label-identifier=? a-id b-id)  boolean?

  a-id : syntax?
  b-id : syntax?

procedure

(free-identifier=? a-id b-id)  boolean?

  a-id : syntax?
  b-id : syntax?
The module-identifier=?, etc. functions are the same as free-identifier=?, etc. in scheme/base.

The free-identifier=? procedure returns

(and (eq? (syntax-e a) (syntax-e b))
     (module-identifier=? a b))

procedure

(make-namespace [mode])  namespace?

  mode : (one-of/c 'initial 'empty) = 'initial
Creates a namespace with mzscheme attached. If the mode is empty, the namespace’s top-level environment is left empty. If mode is 'initial, then the namespace’s top-level environment is initialized with (namespace-require/copy 'mzscheme). See also make-base-empty-namespace.

procedure

(namespace-transformer-require req)  void?

  req : any/c
Equivalent to (namespace-require `(for-syntax ,req)).

procedure

(transcript-on filename)  any

  filename : any/c

procedure

(transcript-off)  any

Raises exn:fail, because the operations are not supported.

procedure

(hash-table? v)  hash-table?

  v : any/c
(hash-table? v flag)  hash-table?
  v : any/c
  flag : (one-of/c 'weak 'equal 'eqv)
(hash-table? v flag flag2)  hash-table?
  v : any/c
  flag : (one-of/c 'weak 'equal 'eqv)
  flag2 : (one-of/c 'weak 'equal 'eqv)
Returns #t if v is a hash table created by make-hash-table or make-immutable-hash-table with the given flags (or more), #f otherwise. If flag2 is provided, it must be distinct from flag and 'equal cannot be used with 'eqv, otherwise the exn:fail:contract exception is raised.

procedure

(make-hash-table)  hash-table?

(make-hash-table flag)  hash-table?
  flag : (one-of/c 'weak 'equal 'eqv)
(make-hash-table flag flag2)  hash-table?
  flag : (one-of/c 'weak 'equal 'eqv)
  flag2 : (one-of/c 'weak 'equal 'eqv)
Creates and returns a new hash table. If provided, each flag must one of the following:

By default, key comparisons use eq? (i.e., the hash table is created with make-hasheq). If flag2 is redundant or 'equal is provided with 'eqv, the exn:fail:contract exception is raised.

procedure

(make-immutable-hash-table assocs)

  (and/c hash-table? immutable?)
  assocs : (listof pair?)
(make-immutable-hash-table assocs flag)
  (and/c hash-table? immutable?)
  assocs : (listof pair?)
  flag : (one-of/c 'equal 'eqv)
Like make-immutable-hash, make-immutable-hasheq, or make-immutable-hasheqv, depending on whether an 'equal or 'eqv flag is provided.

The same as cleanse-path.

The same as list.

procedure

(collection-file-path file collection ...+)  path?

  file : path-string?
  collection : path-string?

procedure

(collection-path collection ...+)  path?

  collection : path-string?
Like collection-file-path and collection-path, but without the #:fail option.