// Copyright (C) 2012 Pyrios.
//
// 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 TCL
*
*
* 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-tcl">proc foo {} {puts bar}</pre>
*
* I copy-pasted lang-lisp.js, so this is probably not 100% accurate.
* I used http://wiki.tcl.tk/1019 for the keywords, but tried to only
* include as keywords that had more impact on the program flow
* rather than providing convenience. For example, I included 'if'
* since that provides branching, but left off 'open' since that is more
* like a proc. Add more if it makes sense.
*
* @author pyrios@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'], /^(?:after|append|apply|array|break|case|catch|continue|error|eval|exec|exit|expr|for|foreach|if|incr|info|proc|return|set|switch|trace|uplevel|upvar|while)\b/, null],
[PR['PR_LITERAL'],
/^[+\-]?(?:[0#]x[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()\"\\\';]+/]
]),
['tcl']);
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