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utility Manual

Description

A collection of useful macros and functions I use in almost every project.

Installing utility

We can use QuickLisp to load utility:

(ql:quickload :utility)

Some Things inside

  • [macro] (DOHASH ((K V) HASH &body BODY))

    • Iterate through the contents of a hash table.
  • [macro] (ETOUQ (&body BODY))

    • Expand into the macro-time evaluation of BODY.
(etouq (list (car (cons 'car 0))
		      `(quote ,(cdr (list 0 1 2)))))
=> 
1 
  • [macro] (DOBOX ((&rest INTERVAL-FORMS) &rest BODY))

    • Iterate through all coordinates bounded by the dimensions specified in INTERVAL-FORMS.

Example:

(dobox ((x 0 2) (y 0 3)) (print (list x y)))
=> 
(0 0) 
(0 1) 
(0 2) 
(1 0) 
(1 1) 
(1 2)
  • [function] (KEYWORDIFY (SYM))

    • Intern SYM in the keyword package. SYM is a string designator.
  • [macro] (ANY (&body BODY))

    • Expand into a random element of body. Most useful to denote code invariants.
  • [function] (FLOATIFY (X))

    • Coerce X to type 'SINGLE-FLOAT

License Information

This library is released under the MIT License.

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Yet another personal utility library

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