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
65
66
67
68
69
|
# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class IO < RegexLexer
tag 'io'
title "Io"
desc 'The IO programming language (http://iolanguage.com)'
mimetypes 'text/x-iosrc'
filenames '*.io'
def self.detect?(text)
return true if text.shebang? 'io'
end
def self.constants
@constants ||= Set.new %w(nil false true)
end
def self.builtins
@builtins ||= Set.new %w(
args call clone do doFile doString else elseif for if list
method return super then
)
end
state :root do
rule %r/\s+/m, Text
rule %r(//.*), Comment::Single
rule %r(#.*), Comment::Single
rule %r(/(\\\n)?[*].*?[*](\\\n)?/)m, Comment::Multiline
rule %r(/[+]), Comment::Multiline, :nested_comment
rule %r/"(\\\\|\\"|[^"])*"/, Str
rule %r(:?:=), Keyword
rule %r/[()]/, Punctuation
rule %r([-=;,*+><!/|^.%&\[\]{}]), Operator
rule %r/[A-Z]\w*/, Name::Class
rule %r/[a-z_]\w*/ do |m|
name = m[0]
if self.class.constants.include? name
token Keyword::Constant
elsif self.class.builtins.include? name
token Name::Builtin
else
token Name
end
end
rule %r((\d+[.]?\d*|\d*[.]\d+)(e[+-]?[0-9]+)?)i, Num::Float
rule %r/\d+/, Num::Integer
rule %r/@@?/, Keyword
end
state :nested_comment do
rule %r([^/+]+)m, Comment::Multiline
rule %r(/[+]), Comment::Multiline, :nested_comment
rule %r([+]/), Comment::Multiline, :pop!
end
end
end
end
|
