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This is the null-package Reference Manual, version 1.3.11, generated automatically by Declt version 3.0 "Montgomery Scott" on Fri Jun 26 11:50:50 2020 GMT+0.
| • Introduction | What null-package is all about | |
| • Systems | The systems documentation | |
| • Files | The files documentation | |
| • Packages | The packages documentation | |
| • Definitions | The symbols documentation | |
| • Indexes | Concepts, functions, variables and data types |
Having strong package system.
When static lisp source analyzing or interacting to unreliable user with S-Expression, interning symbol becomes problem.
In such cases, not interning, just making symbol (i.e. uninterned symbol) is useful.
NULL-PACKAGE provides such feature.
(with-input-from-string (s "hoge")
(read-with-null-package s))
=> #:HOGE
For details, see spec file.
NULL-PACKAGE aims to be used for static analyzing rather than security. If you want more strict one for security reason, SAFE-READ is recommended.
(with-input-from-string (s "nil")
(read-with-null-package s))
=> NIL
(with-input-from-string (s "nil")
(safe-read s))
:signals malformed-input
(with-input-from-string (s "()")
(safe-read s))
=> NIL
NIL
(with-input-from-string (s "(#(a))")
(read-with-null-package s))
=> (#(#:A))
(with-input-from-string (s "(#(a))")
(safe-read s))
:signals malformed-input
(with-input-from-string (s "(asdf:system)")
(read-with-null-package s))
=> (#:SYSTEM)
(with-input-from-string (s "(asdf:system)")
(safe-read s))
:signals malformed-input
(let ((*only-junk-p* t))
(with-input-from-string (s "(car (cdr (list a b no-such-package:c)))")
(read-with-null-package s)))
=> (CAR (CDR (LIST A B #:C)))
(defpackage test (:use :cl) (:export car cdr))
(let ((*terget-symbols* :external) ; The default though.
(*only-junk-p* '(:test)))
(with-input-from-string (s "(car (cdr (list a b no-such-package:c)))")
(read-with-null-package s)))
=> (CAR (CDR (#:LIST #:A #:B #:C)))
In fact, ideal syntax was like below.
(let ((*package* (find-package :null)))
(with-input-from-string (s "hoge")
(read s)))
But there is no portable way to set default reader to readtable.
Already?
MIT
SBCL
Next: Files, Previous: Introduction, Up: Top [Contents][Index]
The main system appears first, followed by any subsystem dependency.
| • The null-package system |
SATO Shinichi
MIT
Safe and robust S-Expression reader. Useful to read from unfailthfull stream/socket.
1.3.11
null-package.asd (file)
null-package.lisp (file)
Files are sorted by type and then listed depth-first from the systems components trees.
| • Lisp files |
| • The null-package.asd file | ||
| • The null-package/null-package.lisp file |
Next: The null-package/null-package․lisp file, Previous: Lisp files, Up: Lisp files [Contents][Index]
null-package.asd
null-package (system)
Previous: The null-package․asd file, Up: Lisp files [Contents][Index]
null-package (system)
null-package.lisp
Next: Definitions, Previous: Files, Up: Top [Contents][Index]
Packages are listed by definition order.
| • The null-package package |
null-package.lisp (file)
common-lisp
Definitions are sorted by export status, category, package, and then by lexicographic order.
| • Exported definitions | ||
| • Internal definitions |
Next: Internal definitions, Previous: Definitions, Up: Definitions [Contents][Index]
| • Exported special variables | ||
| • Exported functions |
Next: Exported functions, Previous: Exported definitions, Up: Exported definitions [Contents][Index]
When NIL, all symbols are uninterned except boolean and keyword.
When list, included package’s symbols which satisfies TARGETP are not uninterned.
When T, broken notation only uninterned.
null-package.lisp (file)
null-package.lisp (file)
Previous: Exported special variables, Up: Exported definitions [Contents][Index]
null-package.lisp (file)
Previous: Exported definitions, Up: Definitions [Contents][Index]
| • Internal special variables | ||
| • Internal functions |
Next: Internal functions, Previous: Internal definitions, Up: Internal definitions [Contents][Index]
null-package.lisp (file)
Previous: Internal special variables, Up: Internal definitions [Contents][Index]
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
null-package.lisp (file)
Previous: Definitions, Up: Top [Contents][Index]
| • Concept index | ||
| • Function index | ||
| • Variable index | ||
| • Data type index |
Next: Function index, Previous: Indexes, Up: Indexes [Contents][Index]
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| Jump to: | F L N |
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Next: Variable index, Previous: Concept index, Up: Indexes [Contents][Index]
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A C F N P R S T |
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A C F N P R S T |
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Next: Data type index, Previous: Function index, Up: Indexes [Contents][Index]
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Previous: Variable index, Up: Indexes [Contents][Index]
| Jump to: | N P S |
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| Index Entry | Section | ||
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null-package: | The null-package system | ||
null-package: | The null-package package | ||
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| P | |||
Package, null-package: | The null-package package | ||
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| S | |||
System, null-package: | The null-package system | ||
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| Jump to: | N P S |
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