1/** 2 * @license 3 * Copyright (C) 2017 Jacek Królikowski 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18/** 19 * @fileoverview 20 * Registers a language handler for Elixir. 21 * 22 * @author nietaki@gmail.com 23 */ 24 25PR['registerLangHandler']( 26 PR['createSimpleLexer']( 27 [ 28 [PR['PR_PLAIN'], /^[\t\n\r \xA0]+/, null, '\t\n\r \xA0'], 29 // # comments 30 [PR['PR_COMMENT'], /^#.*/, null, '#'], 31 // a (possibly multiline) charlist 32 [PR['PR_LITERAL'], /^'(?:[^'\\]|\\(?:.|\n|\r))*'?/, null, '\''], 33 // @attributes 34 [PR['PR_ATTRIB_NAME'], /^@\w+/, null, '@'], 35 [PR['PR_PUNCTUATION'], /^[!%&()*+,\-;<=>?\[\\\]^{|}]+/, null, 36 '!%&()*+,-;<=>?[\\]^{|}'], 37 // Borrowed from lang-erlang.js: 38 [PR['PR_LITERAL'], 39 /^(?:0o[0-7](?:[0-7]|_[0-7])*|0x[\da-fA-F](?:[\da-fA-F]|_[\da-fA-F])*|\d(?:\d|_\d)*(?:\.\d(?:\d|_\d)*)?(?:[eE][+\-]?\d(?:\d|_\d)*)?)/, 40 null, '0123456789'] 41 ], 42 [ 43 // the iex> prompt for interactive examples 44 [PR['PR_ATTRIB_NAME'], /^iex(?:\(\d+\))?> /], 45 // special case for binaries, so that they don't get presented like atoms 46 [PR['PR_PUNCTUATION'], /^::/], 47 // atoms - :__a_word or :"colon followed by a string" 48 [PR['PR_LITERAL'], /^:(?:\w+[\!\?\@]?|"(?:[^"\\]|\\.)*"?)/], 49 // compile-time information 50 [PR['PR_ATTRIB_NAME'], /^(?:__(?:CALLER|ENV|MODULE|DIR)__)/], 51 // keywords 52 [PR['PR_KEYWORD'], 53 /^(?:alias|case|catch|def(?:delegate|exception|impl|macrop?|module|overridable|p?|protocol|struct)|do|else|end|fn|for|if|in|import|quote|raise|require|rescue|super|throw|try|unless|unquote(?:_splicing)?|use|when|with|yield)\b/], 54 [PR['PR_LITERAL'], /^(?:true|false|nil)\b/], 55 // atoms as keyword list keys 56 // NOTE: this does also handle the %{"I'm an atom": :foo} case 57 // 58 // Contains negative lookahead to handle <<foo::binary>> 59 [PR['PR_LITERAL'], /^(?:\w+[\!\?\@]?|"(?:[^"\\]|\\.)*"):(?!:)/], 60 // heredoc: triple double-quoted multi-line string. 61 // 62 // NOTE: the opening """ needs to be followed by a newline 63 [PR['PR_STRING'], 64 /^"""\s*(\r|\n)+(?:""?(?!")|[^\\"]|\\(?:.|\n|\r))*"{0,3}/], 65 // A double-quoted multi-line string 66 [PR['PR_STRING'], 67 /^"(?:[^"\\]|\\(?:.|\n|\r))*"?(?!")/], 68 // types 69 [PR['PR_TYPE'], /^[A-Z]\w*/], 70 // variables not meant to be used or private functions 71 [PR['PR_COMMENT'], /^_\w*/], 72 // plain: variables, functions, ... 73 [PR['PR_PLAIN'], /^[$a-z]\w*[\!\?]?/], 74 // sigils with the same starting and ending character. 75 // Key part: X(?:[^X\r\n\\]|\\.)+X where X is the sigil character 76 [PR['PR_ATTRIB_VALUE'], /^~[A-Z](?:\/(?:[^\/\r\n\\]|\\.)+\/|\|(?:[^\|\r\n\\]|\\.)+\||"(?:[^"\r\n\\]|\\.)+"|'(?:[^'\r\n\\]|\\.)+')[A-Z]*/i], 77 // sigils with a different starting and ending character. 78 // Key part: X(?:[^Y\r\n\\]|\\.)+Y where X and Y are the starting and ending characters 79 [PR['PR_ATTRIB_VALUE'], /^~[A-Z](?:\((?:[^\)\r\n\\]|\\.)+\)|\[(?:[^\]\r\n\\]|\\.)+\]|\{(?:[^\}\r\n\\]|\\.)+\}|\<(?:[^\>\r\n\\]|\\.)+\>)[A-Z]*/i], 80 [PR['PR_PUNCTUATION'], /^(?:\.+|\/|[:~])/] 81 ]), 82 ['ex','exs']); 83