Ting Chan / palertx_web

Blame view

assets/plugins/google-code-prettify/lang-lua.js 2.39 KB
edit raw normal view history
cf76164e6   Ting Chan   20190709 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 
  // 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 Lua.
   *
   *
   * 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-lua">(my Lua code)</pre>
   *
   *
   * I used http://www.lua.org/manual/5.1/manual.html#2.1
   * Because of the long-bracket concept used in strings and comments, Lua does
   * not have a regular lexical grammar, but luckily it fits within the space
   * of irregular grammars supported by javascript regular expressions.
   *
   * @author mikesamuel@gmail.com
   */
  
  PR['registerLangHandler'](
      PR['createSimpleLexer'](
          [
           // Whitespace
           [PR['PR_PLAIN'],       /^[\t
  \r \xA0]+/, null, '\t
  \r \xA0'],
           // A double or single quoted, possibly multi-line, string.
           [PR['PR_STRING'],      /^(?:\"(?:[^\"\\]|\\[\s\S])*(?:\"|$)|\'(?:[^\'\\]|\\[\s\S])*(?:\'|$))/, null, '"\'']
          ],
          [
           // A comment is either a line comment that starts with two dashes, or
           // two dashes preceding a long bracketed block.
           [PR['PR_COMMENT'], /^--(?:\[(=*)\[[\s\S]*?(?:\]\1\]|$)|[^\r
  ]*)/],
           // A long bracketed block not preceded by -- is a string.
           [PR['PR_STRING'],  /^\[(=*)\[[\s\S]*?(?:\]\1\]|$)/],
           [PR['PR_KEYWORD'], /^(?:and|break|do|else|elseif|end|false|for|function|if|in|local|nil|not|or|repeat|return|then|true|until|while)\b/, null],
           // A number is a hex integer literal, a decimal real literal, or in
           // scientific notation.
           [PR['PR_LITERAL'],
            /^[+-]?(?:0x[\da-f]+|(?:(?:\.\d+|\d+(?:\.\d*)?)(?:e[+\-]?\d+)?))/i],
           // An identifier
           [PR['PR_PLAIN'], /^[a-z_]\w*/i],
           // A run of punctuation
           [PR['PR_PUNCTUATION'], /^[^\w\t
  \r \xA0][^\w\t
  \r \xA0\"\'\-\+=]*/]
          ]),
      ['lua']);