| OLD | NEW |
| (Empty) |
| 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://go
lang.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']); | |
| OLD | NEW |