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# -*- coding: utf-8 -*- #
module Rouge
module Lexers
class Haxe < RegexLexer
title "Haxe"
desc "Haxe Cross-platform Toolkit (http://haxe.org)"
tag 'haxe'
aliases 'hx', 'haxe'
filenames '*.hx'
mimetypes 'text/haxe', 'text/x-haxe', 'text/x-hx'
def self.detect?(text)
return true if text.shebang? "haxe"
end
def self.keywords
@keywords ||= Set.new %w(
as break case cast catch class continue default do else enum false for
function if import in interface macro new null override package private
public return switch this throw true try untyped while
)
end
def self.imports
@imports ||= Set.new %w(
package import using
)
end
def self.declarations
@declarations ||= Set.new %w(
abstract dynamic extern extends from implements inline static to
typedef var
)
end
def self.reserved
@reserved ||= Set.new %w(
super trace inline build autoBuild enum
)
end
def self.constants
@constants ||= Set.new %w(true false null)
end
def self.builtins
@builtins ||= %w(
Void Dynamic Math Class Any Float Int UInt String StringTools Sys
EReg isNaN parseFloat parseInt this Array Map Date DateTools Bool
Lambda Reflect Std File FileSystem
)
end
id = /[$a-zA-Z_][a-zA-Z0-9_]*/
dotted_id = /[$a-zA-Z_][a-zA-Z0-9_.]*/
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/#(?:if|elseif|else|end).*/, Comment::Preproc
rule %r(~) do
token Str::Regex
goto :regex
end
rule %r/[{]/, Punctuation, :object
rule %r//, Text, :pop!
end
state :namespace do
mixin :comments_and_whitespace
rule %r/
(#{dotted_id})
(\s+)(in|as)(\s+)
(#{id})
/x do
groups(Name::Namespace, Text::Whitespace, Keyword, Text::Whitespace, Name)
end
rule %r/#{dotted_id}/, Name::Namespace
rule(//) { 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
state :root do
rule %r/\n/, Text, :statement
rule %r(\{), Punctuation, :expr_start
mixin :comments_and_whitespace
rule %r/@/, Name::Decorator, :metadata
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 id do |m|
match = m[0]
if self.class.imports.include?(match)
token Keyword::Namespace
push :namespace
elsif self.class.keywords.include?(match)
token Keyword
push :expr_start
elsif self.class.declarations.include?(match)
token Keyword::Declaration
push :expr_start
elsif self.class.reserved.include?(match)
token Keyword::Reserved
elsif self.class.constants.include?(match)
token Keyword::Constant
elsif self.class.builtins.include?(match)
token Name::Builtin
else
token Name::Other
end
end
rule %r/\-?\d+\.\d+(?:[eE]\d+)?[fd]?/, Num::Float
rule %r/0x\h+/, Num::Hex
rule %r/\-?[0-9]+/, Num::Integer
rule %r/"/, Str::Double, :str_double
rule %r/'/, Str::Single, :str_single
end
# braced parts that aren't object literals
state :statement do
rule %r/(#{id})(\s*)(:)/ do
groups Name::Label, Text, Punctuation
end
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
state :metadata do
rule %r/(#{id})(\()?/ do |m|
groups Name::Decorator, Punctuation
pop! unless m[2]
end
rule %r/:#{id}(?:\.#{id})*/, Name::Decorator, :pop!
rule %r/\)/, Name::Decorator, :pop!
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
state :str_double do
mixin :str_escape
rule %r/"/, Str::Double, :pop!
rule %r/[^\\"]+/, Str::Double
end
state :str_single do
mixin :str_escape
rule %r/'/, Str::Single, :pop!
rule %r/\$\$/, Str::Single
rule %r/\$#{id}/, Str::Interpol
rule %r/\$\{/, Str::Interpol, :str_interpol
rule %r/[^\\$']+/, Str::Single
end
state :str_escape do
rule %r/\\[\\tnr'"]/, Str::Escape
rule %r/\\[0-7]{3}/, Str::Escape
rule %r/\\x\h{2}/, Str::Escape
rule %r/\\u\h{4}/, Str::Escape
rule %r/\\u\{\h{1,6}\}/, Str::Escape
end
state :str_interpol do
rule %r/\}/, Str::Interpol, :pop!
mixin :root
end
end
end
end
|
