Trivial Variable Bindings Manual

[in package TRIVIAL-VARIABLE-BINDINGS]

Description

This simple library offers a way to handle associations between a place-holder (aka. variable) and a value. See trivial-filter for an application.

Installing trivial-variable-bindings

This project is available in the latest QuickLisp distribution, so installing it is reduced to calling:

(ql:quickload :trivial-variable-bindings)

Working Example

See trivial-filter for an application.

Exported Symbols

• [class] PLACE-HOLDER

  A named variable.

• [method] PLACE-HOLDER-NAME (PLACE-HOLDER PLACE-HOLDER)

  Reader of the name of a place-holder.

• [class] VARIABLE-BINDING

  The binding of a named variable to a specific value.

• [method] BOUND-VARIABLE (VARIABLE-BINDING VARIABLE-BINDING)

  Reader of the place-holder bound.

• [method] BOUND-VALUE (VARIABLE-BINDING VARIABLE-BINDING)

  Accessor of the value a place-holder is bound to.

• [class] BINDINGS

  A set of named variabled bound to corresponding values.

• [method] BOUND-VARIABLES (BINDINGS BINDINGS)

  Accessor to the list of all variable-bindings contained in this bindings.

• [function] CONTAINS VAR BINDINGS

  Verify that a place-holder VAR is bound to a specific value in the bindings container BINDINGS.

• [function] BOUND-VARIABLE-VALUE VAR BINDINGS

  Return the value associated to the place-holder VAR in the bindings container BINDINGS, if any. Otherwise return the place-holder VAR itself.

• [function] REMOVE-BOUND-VARIABLE VAR BINDINGS

  Delete the bound place-holder VAR in the bindings container BINDINGS.

• [method] EQUALS (LHS PLACE-HOLDER) (RHS PLACE-HOLDER)

  Compares two place-holder for equality. Only equally named place-holders are equal.

• [method] EQUALS (LHS BOUND-VARIABLE) (RHS BOUND-VARIABLE)

  Compares two bound-variables for equality.

• [method] EQUALS (LHS BINDINGS) (RHS BINDINGS)

  Compares two bindings for equality.

• [method] CLONE (BINDINGS BINDINGS)

  Make a deep copy of the given bindings container BINDINGS.

License Information

This library is released under the MIT License. Please refer to the LICENSE to get the full licensing text.

Contributing to this project

Please refer to the CONTRIBUTING document for more information.