// Copyright (C) 2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview
* Registers a language handler for Common Lisp and related languages.
*
*
* To use, include prettify.js and this file in your HTML page.
* Then put your code in an HTML tag like
* <pre class="prettyprint lang-lisp">(my lisp code)</pre>
* The lang-cl class identifies the language as common lisp.
* This file supports the following language extensions:
* lang-cl - Common Lisp
* lang-el - Emacs Lisp
* lang-lisp - Lisp
* lang-scm - Scheme
*
*
* I used http://www.devincook.com/goldparser/doc/meta-language/grammar-LISP.htm
* as the basis, but added line comments that start with ; and changed the atom
* production to disallow unquoted semicolons.
*
* "Name" = 'LISP'
* "Author" = 'John McCarthy'
* "Version" = 'Minimal'
* "About" = 'LISP is an abstract language that organizes ALL'
* | 'data around "lists".'
*
* "Start Symbol" = [s-Expression]
*
* {Atom Char} = {Printable} - {Whitespace} - [()"\'']
*
* Atom = ( {Atom Char} | '\'{Printable} )+
*
* [s-Expression] ::= [Quote] Atom
* | [Quote] '(' [Series] ')'
* | [Quote] '(' [s-Expression] '.' [s-Expression] ')'
*
* [Series] ::= [s-Expression] [Series]
* |
*
* [Quote] ::= '' !Quote = do not evaluate
* |
*
*
* I used <a href="http://gigamonkeys.com/book/">Practical Common Lisp</a> as
* the basis for the reserved word list.
*
*
* @author mikesamuel@gmail.com
*/
PR.registerLangHandler(
PR.createSimpleLexer(
[
['opn', /^\(/, null, '('],
['clo', /^\)/, null, ')'],
// A line comment that starts with ;
[PR.PR_COMMENT, /^;[^\r\n]*/, null, ';'],
// Whitespace
[PR.PR_PLAIN, /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'],
// A double quoted, possibly multi-line, string.
[PR.PR_STRING, /^\"(?:[^\"\\]|\\[\s\S])*(?:\"|$)/, null, '"']
],
[
[PR.PR_KEYWORD, /^(?:block|c[ad]+r|catch|cons|defun|do|eq|eql|equal|equalp|eval-when|flet|format|go|if|labels|lambda|let|load-time-value|locally|macrolet|multiple-value-call|nil|progn|progv|quote|require|return-from|setq|symbol-macrolet|t|tagbody|the|throw|unwind)\b/, null],
[PR.PR_LITERAL,
/^[+\-]?(?:0x[0-9a-f]+|\d+\/\d+|(?:\.\d+|\d+(?:\.\d*)?)(?:[ed][+\-]?\d+)?)/i],
// A single quote possibly followed by a word that optionally ends with
// = ! or ?.
[PR.PR_LITERAL,
/^\'(?:-*(?:\w|\\[\x21-\x7e])(?:[\w-]*|\\[\x21-\x7e])[=!?]?)?/],
// A word that optionally ends with = ! or ?.
[PR.PR_PLAIN,
/^-*(?:[a-z_]|\\[\x21-\x7e])(?:[\w-]*|\\[\x21-\x7e])[=!?]?/i],
// A printable non-space non-special character
[PR.PR_PUNCTUATION, /^[^\w\t\n\r \xA0()\"\\\';]+/]
]),
['cl', 'el', 'lisp', 'scm']);
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