crm.fsf.org/20131203/files/sites/all/modules-old/civicrm/bower_components/google-code-prettify/src/lang-go.js

   1 // Copyright (C) 2010 Google Inc.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //      http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15
  16
  17 /**
  18  * @fileoverview
  19  * Registers a language handler for the Go language..
  20  * <p>
  21  * Based on the lexical grammar at
  22  * http://golang.org/doc/go_spec.html#Lexical_elements
  23  * <p>
  24  * Go uses a minimal style for highlighting so the below does not distinguish
  25  * strings, keywords, literals, etc. by design.
  26  * From a discussion with the Go designers:
  27  * <pre>
  28  * On Thursday, July 22, 2010, Mike Samuel <...> wrote:
  29  * > On Thu, Jul 22, 2010, Rob 'Commander' Pike <...> wrote:
  30  * >> Personally, I would vote for the subdued style godoc presents at http://golang.org
  31  * >>
  32  * >> Not as fancy as some like, but a case can be made it's the official style.
  33  * >> If people want more colors, I wouldn't fight too hard, in the interest of
  34  * >> encouragement through familiarity, but even then I would ask to shy away
  35  * >> from technicolor starbursts.
  36  * >
  37  * > Like http://golang.org/pkg/go/scanner/ where comments are blue and all
  38  * > other content is black?  I can do that.
  39  * </pre>
  40  *
  41  * @author mikesamuel@gmail.com
  42  */
  43
  44 PR['registerLangHandler'](
  45     PR['createSimpleLexer'](
  46         [
  47          // Whitespace is made up of spaces, tabs and newline characters.
  48          [PR['PR_PLAIN'],       /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'],
  49          // Not escaped as a string.  See note on minimalism above.
  50          [PR['PR_PLAIN'],       /^(?:\"(?:[^\"\\]|\\[\s\S])*(?:\"|$)|\'(?:[^\'\\]|\\[\s\S])+(?:\'|$)|`[^`]*(?:`|$))/, null, '"\'']
  51         ],
  52         [
  53          // Block comments are delimited by /* and */.
  54          // Single-line comments begin with // and extend to the end of a line.
  55          [PR['PR_COMMENT'],     /^(?:\/\/[^\r\n]*|\/\*[\s\S]*?\*\/)/],
  56          [PR['PR_PLAIN'],       /^(?:[^\/\"\'`]|\/(?![\/\*]))+/i]
  57         ]),
  58     ['go']);