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module Rugments
module Lexers
class Groovy < RegexLexer
title 'Groovy'
desc 'The Groovy programming language (groovy.codehaus.org)'
tag 'groovy'
filenames '*.groovy'
mimetypes 'text/x-groovy'
ws = %r{(?:\s|//.*?\n|/[*].*?[*]/)+}
def self.keywords
@keywords ||= Set.new %w(
assert break case catch continue default do else finally for
if goto instanceof new return switch this throw try while in as
)
end
def self.declarations
@declarations ||= Set.new %w(
abstract const enum extends final implements native private
protected public static strictfp super synchronized throws
transient volatile
)
end
def self.types
@types ||= Set.new %w(
def boolean byte char double float int long short void
)
end
def self.constants
@constants ||= Set.new %w(true false null)
end
state :root do
rule %r{^
(\s*(?:\w[\w\d.\[\]]*\s+)+?) # return arguments
(\w[\w\d]*) # method name
(\s*) (\() # signature start
}x do |m|
delegate clone, m[1]
token Name::Function, m[2]
token Text, m[3]
token Operator, m[4]
end
# whitespace
rule /[^\S\n]+/, Text
rule %r{//.*?\n}, Comment::Single
rule %r{/[*].*?[*]/}m, Comment::Multiline
rule /@\w[\w\d.]*/, Name::Decorator
rule /(class|interface)\b/, Keyword::Declaration, :class
rule /package\b/, Keyword::Namespace, :import
rule /import\b/, Keyword::Namespace, :import
rule /"(\\\\|\\"|[^"])*"/, Str::Double
rule /'(\\\\|\\'|[^'])*'/, Str::Single
rule %r{\$/((?!/\$).)*/\$}, Str
rule %r{/(\\\\|\\"|[^/])*/}, Str
rule /'\\.'|'[^\\]'|'\\u[0-9a-f]{4}'/, Str::Char
rule /(\.)([a-zA-Z_][a-zA-Z0-9_]*)/ do
groups Operator, Name::Attribute
end
rule /[a-zA-Z_][a-zA-Z0-9_]*:/, Name::Label
rule /[a-zA-Z_\$][a-zA-Z0-9_]*/ do |m|
if self.class.keywords.include? m[0]
token Keyword
elsif self.class.declarations.include? m[0]
token Keyword::Declaration
elsif self.class.types.include? m[0]
token Keyword::Type
elsif self.class.constants.include? m[0]
token Keyword::Constant
else
token Name
end
end
rule %r([~^*!%&\[\](){}<>\|+=:;,./?-]), Operator
# numbers
rule /\d+\.\d+([eE]\d+)?[fd]?/, Num::Float
rule /0x[0-9a-f]+/, Num::Hex
rule /[0-9]+L?/, Num::Integer
rule /\n/, Text
end
state :class do
rule /\s+/, Text
rule /\w[\w\d]*/, Name::Class, :pop!
end
state :import do
rule /\s+/, Text
rule /[\w\d.]+[*]?/, Name::Namespace, :pop!
end
end
end
end
|
