All projects of Hexstream

Hexstream/definitions-systems Provides a simple unified extensible way of processing named definitions.
Hexstream/map-bind MAP-BIND is a macro that allows visual grouping of variables with their corresponding values (not necessarily 1:1) in calls to mapping operators when using an inline LAMBDA. It does so in a way that automatically supports virtually every existing and future mapping operator, all lambda keywords and FUNCALL/APPLY/MULTIPLE-VALUE-CALL variations.
Hexstream/positional-lambda positional-lambda is a concise, intuitive and flexible syntax (macro) for trivial lambdas that eschews explicit (and often contextually-redundant) naming of parameter variables in favor of positional references, with support for a used or ignored &rest parameter and automatic declaration of ignored parameters when logical "gaps" are left in the positional references. Further convenience features are provided.
Hexstream/enhanced-eval-when Provides an enhanced EVAL-WHEN macro that supports (eval-when t ...) as a shorthand for (eval-when (:compile-toplevel :load-toplevel :execute) ...), addressing concerns about verbosity. An ENHANCED-EVAL-WHEN alias is also supported, as well as an EVAL-ALWAYS macro and package nickname, for good measure.
Hexstream/parse-number-range Parses LOOP's convenient "for-as-arithmetic" syntax into 5 simple values: from, to, limit-kind (:inclusive, :exclusive or nil if unbounded), by (step) and direction (+ or -)). Further related utilities are provided. Intended for easy implementation of analogous functionality in other constructs.
Hexstream/incognito-keywords Introduces a new kind of keyword that looks just like any non-keyword symbol and allows safe usage of convenient but clashy symbol names by multiple libraries without conflicts through sharing. Some names that might benefit are (alist blist plist macro operator index &doc &decl &rest+ &destructure &ignored &ignorable).
Hexstream/enhanced-multiple-value-bind Provides an enhanced MULTIPLE-VALUE-BIND macro that adds support for lambda keywords by expanding to a MULTIPLE-VALUE-CALL when necessary. This makes catching multiple-value &rest and &key much more lightweight and convenient. A MULTIPLE-VALUE-&BIND alias is supported.
Hexstream/first-time-value Returns the result of evaluating a form in the current lexical and dynamic context the first time it's encountered, and the cached result of that computation on subsequent evaluations.
Hexstream/place-modifiers place-modifiers essentially gives access to hundreds of modify-macros through one single macro: MODIFY.
Hexstream/macro-level MACRO-LEVEL is an embarrassingly trivial convenience macro that saves on indentation while being more concise and direct. (macro-level ...) == (macrolet ((m () ...)) (m))
Hexstream/with-shadowed-bindings Establishes a new lexical context within which specified bindings are explicitly shadowed, making it clear that they are not referenced within, thereby reducing cognitive load.
Hexstream/cartesian-product-switch A macro for choosing the appropriate form to execute according to the combined results of multiple tests. This is a straightforward and efficient alternative to the convoluted ad-hoc conditionals one might otherwise resort to.
Hexstream/clhs This installation helper makes it even easier to install a copy of the CLHS locally. (ql:quickload "clhs").
Hexstream/multiple-value-variants Gives access to multiple-value variants of operators through one macro: MULTIPLE-VALUE. There are built-in variants for some standard operators; it's easy to create your own variants for other operators. The multiple-value mapping operators are especially useful.
Hexstream/symbol-namespaces Defines a new kind of package that's named by a symbol rather than a string and that maps from existing symbols to their respective "implicitly managed" counterparts. The motivating use-case is to conceptually allow multiple definitions of the same kind on a single symbol, without conflicts.
Hexstream/place-utils Provides a few utilities relating to setfable places.
Hexstream/its Provides convenient access to multiple values of an object in a concise, explicit and efficient way.
Hexstream/cesdi Provides a compute-effective-slot-definition-initargs generic function that allows for more ergonomic initialization of effective slot definition objects.
Hexstream/anaphoric-variants Gives access to anaphoric variants of operators through one macro: ANAPHORIC. The user explicitly provides a variable name, preserving sanity, in contrast to the traditional use of an evil implicit variable ("IT"). Some operators can bind additional handy variables when explicitly requested. (Formerly called "explicit-anaphora".)
Hexstream/trivial-jumptables Provides efficient O(1) jumptables on supported Common Lisp implementations and falls back to O(log(n)) on others.
Hexstream/bubble-operator-upwards A function that "bubbles an operator upwards" in a form, demultiplexing all alternative branches by way of cartesian product. This operation is notably useful for easy implementation of certain kinds of shorthand notations in macros. A cartesian-product function is also exported, as it's needed to implement the main function.