The array-utils Reference Manual

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The array-utils Reference Manual

This is the array-utils Reference Manual, version 1.1.1, generated automatically by Declt version 4.0 beta 2 "William Riker" on Mon Aug 15 03:12:26 2022 GMT+0.

Table of Contents


1 Introduction

About Array-Utils

A miniature toolkit that contains some useful shifting/popping/pushing functions for arrays and vectors. This exists mostly because I've used these functions in multiple places already, so splitting it off into its own thing is a good idea. Originally from Plump.


2 Systems

The main system appears first, followed by any subsystem dependency.


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2.1 array-utils

A few utilities for working with arrays.

Maintainer

Nicolas Hafner <shinmera@tymoon.eu>

Author

Nicolas Hafner <shinmera@tymoon.eu>

Home Page

https://Shinmera.github.io/array-utils/

Source Control

(GIT https://github.com/Shinmera/array-utils.git)

Bug Tracker

https://github.com/Shinmera/array-utils/issues

License

zlib

Version

1.1.1

Source

array-utils.asd.

Child Component

utils.lisp (file).


3 Files

Files are sorted by type and then listed depth-first from the systems components trees.


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3.1 Lisp


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3.1.1 array-utils/array-utils.asd

Source

array-utils.asd.

Parent Component

array-utils (system).

ASDF Systems

array-utils.


3.1.2 array-utils/utils.lisp

Source

array-utils.asd.

Parent Component

array-utils (system).

Packages

array-utils.

Public Interface
Internals

positive-fixnum (type).


4 Packages

Packages are listed by definition order.


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4.1 array-utils

Source

utils.lisp.

Nickname

org.shirakumo.array-utils

Use List

common-lisp.

Public Interface
Internals

positive-fixnum (type).


5 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.


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5.1 Public Interface


5.1.1 Ordinary functions

Function: array-shift (array &key n from to adjust fill contents)

Shifts a subset of array elements in either direction for a specified amount.
Optionally also extends the array and fills empty space with a given element.

N — The amount to be moved. If positive, things are shifted to the right. If negative, things are shifted to the left.
FROM — The left point of the region to move, inclusive.
TO — The right point of the region to move, exclusive.
ADJUST — Whether to adjust the fill pointer and the array bounds. The array is only adjusted if N is positive and the range of TO+N would exceed the ARRAY length, or if N is negative and TO equals the length of the ARRAY
FILL — If provided, empty spaces created by the move will be filled with this element. CONTENTS — If provided, uses the contents to fill the new space. If |N| is greater than the length of this sequence, FILL is used to fill the rest of the space if it is provided. If not, an error is signalled. No matter whether N is negative or positive, the content is filled in from left to right in the order it is given.

Package

array-utils.

Source

utils.lisp.

Function: ensure-array-size (array new-space)
Package

array-utils.

Source

utils.lisp.

Function: vector-append (vector sequence &optional position)

Appends all elements of the sequence at position of the vector and returns it. This is potentially very costly as all elements after the given position need to be shifted back as per ARRAY-SHIFT.

Package

array-utils.

Source

utils.lisp.

Function: vector-pop-front (vector)

Pops the first element off the vector and returns it.
This operation is very costly and takes O(n) time as each element needs to be shifted as per ARRAY-SHIFT.

See VECTOR-POP-FRONT*
See VECTOR-POP-POSITION

Package

array-utils.

Source

utils.lisp.

Function: vector-pop-front* (vector)

Pops the first element off the vector and returns it.
This is faster than VECTOR-POP-FRONT, but does not preserve the order of elements in the vector.

See VECTOR-POP-FRONT
See VECTOR-POP-POSITION

Package

array-utils.

Source

utils.lisp.

Function: vector-pop-position (vector position)

Pops the element at the given position of the vector and returns it. This is potentially very costly as all elements after the given position need to be shifted back as per ARRAY-SHIFT.

See VECTOR-POP-POSITION*

Package

array-utils.

Source

utils.lisp.

Function: vector-pop-position* (vector position)

Pops the element at the given position of the vector and returns it.
This is faster than VECTOR-POP-POSITION, but does not preserve the order of elements in the vector.

See VECTOR-POP-POSITION

Package

array-utils.

Source

utils.lisp.

Function: vector-push-extend-front (element vector)

Pushes the element onto the front of the vector and extends if necessary. This operation is very costly and takes O(n) time as each element needs to be shifted as per ARRAY-SHIFT.

See VECTOR-PUSH-EXTEND-POSITION

Package

array-utils.

Source

utils.lisp.

Function: vector-push-extend-position (element vector position)

Pushes the element into the specified position and shifts everything to the right to make space. This is potentially very costly as all elements after the given position need to be shifted as per ARRAY-SHIFT.

Package

array-utils.

Source

utils.lisp.


5.2 Internals


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5.2.1 Types

Type: positive-fixnum ()
Package

array-utils.

Source

utils.lisp.


Appendix A Indexes


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A.1 Concepts


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A.3 Variables