README
Motivation
fn is ok, but we prefer λ or lambda; for instance:
(def identity
"Returns its argument."
(λ [x] x))or even defλ:
(defλ identity
"Returns its argument."
[x] x)Usage
See Clojars; in Leiningen, add the following to your dependencies in
project.clj:
[lambda "1.0.1-SNAPSHOT"]or in Maven, to your pom.xml:
<dependency>
<groupId>lambda</groupId>
<artifactId>lambda</artifactId>
<version>1.0.1-SNAPSHOT</version>
</dependency>Typing λ
Enable λ as the result of typing Compose-l-l (or Multikey-l-l)
by adding the following to ~/.Xcompose:
<Multi_key> <l> <l> : "λ" U03BB # GREEK SMALL LETTER LAMBDA
Emacs
Add the following to ~/.emacs to make lambda, λ and defλ
behave like e.g. fn and defn with respect to highlighting and
indentation:
(add-hook
'clojure-mode-hook
(lambda ()
(font-lock-add-keywords
nil
`((,(concat "(\\(?:lambda.core/\\)?\\(defλ\\)\\>"
;; Any whitespace
"[ \r\n\t]*"
;; Possibly type or metadata
"\\(?:#?^\\(?:{[^}]*}\\|\\sw+\\)[ \r\n\t]*\\)*"
"\\(\\sw+\\)?")
(1 font-lock-keyword-face)
(2 font-lock-function-name-face nil t))
(,(concat "(\\(?:lambda.core/\\)?"
(regexp-opt '("defλ"
"λ"
"lambda") t)
"\\>"
)
1 font-lock-builtin-face)))))
(put 'defλ 'clojure-doc-string-elt 2)
(put 'defλ 'clojure-indent-function 'defun)
(put 'λ 'clojure-indent-function 'defun)
(put 'lambda 'clojure-indent-function 'defun)
