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|
# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Rouge
module Lexers
class Actionscript < RegexLexer
title "ActionScript"
desc "ActionScript"
tag 'actionscript'
aliases 'as', 'as3'
filenames '*.as'
mimetypes 'application/x-actionscript'
state :comments_and_whitespace do
rule %r/\s+/, Text
rule %r(//.*?$), Comment::Single
rule %r(/\*.*?\*/)m, Comment::Multiline
end
state :expr_start do
mixin :comments_and_whitespace
rule %r(/) do
token Str::Regex
goto :regex
end
rule %r/[{]/, Punctuation, :object
rule %r//, Text, :pop!
end
state :regex do
rule %r(/) do
token Str::Regex
goto :regex_end
end
rule %r([^/]\n), Error, :pop!
rule %r/\n/, Error, :pop!
rule %r/\[\^/, Str::Escape, :regex_group
rule %r/\[/, Str::Escape, :regex_group
rule %r/\\./, Str::Escape
rule %r{[(][?][:=<!]}, Str::Escape
rule %r/[{][\d,]+[}]/, Str::Escape
rule %r/[()?]/, Str::Escape
rule %r/./, Str::Regex
end
state :regex_end do
rule %r/[gim]+/, Str::Regex, :pop!
rule(//) { pop! }
end
state :regex_group do
# specially highlight / in a group to indicate that it doesn't
# close the regex
rule %r(/), Str::Escape
rule %r([^/]\n) do
token Error
pop! 2
end
rule %r/\]/, Str::Escape, :pop!
rule %r/\\./, Str::Escape
rule %r/./, Str::Regex
end
state :bad_regex do
rule %r/[^\n]+/, Error, :pop!
end
def self.keywords
@keywords ||= Set.new %w(
for in while do break return continue switch case default
if else throw try catch finally new delete typeof is
this with
)
end
def self.declarations
@declarations ||= Set.new %w(var with function)
end
def self.reserved
@reserved ||= Set.new %w(
dynamic final internal native public protected private class const
override static package interface extends implements namespace
set get import include super flash_proxy object_proxy trace
)
end
def self.constants
@constants ||= Set.new %w(true false null NaN Infinity undefined)
end
def self.builtins
@builtins ||= %w(
void Function Math Class
Object RegExp decodeURI
decodeURIComponent encodeURI encodeURIComponent
eval isFinite isNaN parseFloat parseInt this
)
end
id = /[$a-zA-Z_][a-zA-Z0-9_]*/
state :root do
rule %r/\A\s*#!.*?\n/m, Comment::Preproc, :statement
rule %r/\n/, Text, :statement
rule %r((?<=\n)(?=\s|/|<!--)), Text, :expr_start
mixin :comments_and_whitespace
rule %r(\+\+ | -- | ~ | && | \|\| | \\(?=\n) | << | >>>? | ===
| !== )x,
Operator, :expr_start
rule %r([:-<>+*%&|\^/!=]=?), Operator, :expr_start
rule %r/[(\[,]/, Punctuation, :expr_start
rule %r/;/, Punctuation, :statement
rule %r/[)\].]/, Punctuation
rule %r/[?]/ do
token Punctuation
push :ternary
push :expr_start
end
rule %r/[{}]/, Punctuation, :statement
rule id do |m|
if self.class.keywords.include? m[0]
token Keyword
push :expr_start
elsif self.class.declarations.include? m[0]
token Keyword::Declaration
push :expr_start
elsif self.class.reserved.include? m[0]
token Keyword::Reserved
elsif self.class.constants.include? m[0]
token Keyword::Constant
elsif self.class.builtins.include? m[0]
token Name::Builtin
else
token Name::Other
end
end
rule %r/\-?[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?/, Num::Float
rule %r/0x[0-9a-fA-F]+/, Num::Hex
rule %r/\-?[0-9]+/, Num::Integer
rule %r/"(\\\\|\\"|[^"])*"/, Str::Double
rule %r/'(\\\\|\\'|[^'])*'/, Str::Single
end
# braced parts that aren't object literals
state :statement do
rule %r/(#{id})(\s*)(:)/ do
groups Name::Label, Text, Punctuation
end
rule %r/[{}]/, Punctuation
mixin :expr_start
end
# object literals
state :object do
mixin :comments_and_whitespace
rule %r/[}]/ do
token Punctuation
goto :statement
end
rule %r/(#{id})(\s*)(:)/ do
groups Name::Attribute, Text, Punctuation
push :expr_start
end
rule %r/:/, Punctuation
mixin :root
end
# ternary expressions, where <id>: is not a label!
state :ternary do
rule %r/:/ do
token Punctuation
goto :expr_start
end
mixin :root
end
end
end
end
|
