// Copyright (c) 2011 itemis AG (http://www.itemis.eu) and others.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html


/**
 * @fileoverview
 * Registers a language handler for Xtend.
 *
 * @author Sebastian Zarnekow
 */

PR['registerLangHandler'](
    PR['createSimpleLexer'](
        [
          // Whitespace
         [PR['PR_PLAIN'],       /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'],
         [PR['PR_PUNCTUATION'], /^[!#%&()*+,\-:;<=>?@\[\\\]^{|}~]+/, null,
          '!#%&()*+,-:;<=>?@[\\]^{|}~'],

//         , null]
        ],
        [
         // A double or single quoted, possibly multi-line, string.
         [PR['PR_STRING'],        /^(?:"(?:[^\"\\]|\\.)*"|'(?!\'\')(?:[^\'\\]|\\.)*')/],
         // A symbol literal is a single quote followed by an identifier with no
         // single quote following
         // A character literal has single quotes on either side
         [PR['PR_STRING'],      /^'(?:[^\r\n\\']|\\(?:'|[^\r\n']+))'/],
         [PR['PR_LITERAL'],     /^'[a-zA-Z_$][\w$]*(?!['$\w])/],
         [PR['PR_KEYWORD'],     /^(?:this|it|null|abstract|annotation|boolean|case|catch|char|class|create|def|default|do|double|enum|else|extends|extension|final|finally|float|for|if|implements|import|int|interface|long|new|override|package|private|protected|return|short|static|super|switch|throw|throws|try|typeof|val|var|void|while|FOR|ENDFOR|IF|ENDIF|ELSEIF|BEFORE|AFTER|SEPARATOR)\b/],
         [PR['PR_LITERAL'],     /^(?:true|false|null|this|it)\b/],
         [PR['PR_LITERAL'],     /^(?:(?:0(?:[0-7]+|X[0-9A-F]+))L?|(?:(?:0|[1-9][0-9]*)(?:(?:\.[0-9]+)?(?:E[+\-]?[0-9]+)?F?|L?))|\\.[0-9]+(?:E[+\-]?[0-9]+)?F?)/i],
         // Treat upper camel case identifiers as types.
         [PR['PR_TYPE'],        /^[$_]*[A-Z][_$A-Z0-9]*[a-z][\w$]*/],
         [PR['PR_PLAIN'],       /^[$a-zA-Z_][\w$]*/],
         [PR['PR_COMMENT'],     /^\/(?:\/.*|\*(?:\/|\**[^*/])*(?:\*+\/?)?)/],
         [PR['PR_PUNCTUATION'], /^(?:\.+|\/)/],
         [PR['PR_STRING'],      /^((\'\'\'|\u00BB)([\s\S]*?)(\'\'\'|\u00AB))/]

        ]),
    ['xtend']);