82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
# -*- coding: utf-8 -*- #
|
|
# frozen_string_literal: true
|
|
|
|
module Rouge
|
|
module Lexers
|
|
class P4 < RegexLexer
|
|
tag 'p4'
|
|
title 'P4'
|
|
desc 'The P4 programming language'
|
|
filenames '*.p4'
|
|
mimetypes 'text/x-p4'
|
|
|
|
def self.keywords
|
|
@keywords ||= %w(
|
|
abstract action actions apply const default default_action else enum
|
|
entries extern exit if in inout key list out package packet_in
|
|
packet_out return size select switch this transition tuple type
|
|
typedef
|
|
)
|
|
end
|
|
|
|
def self.operators
|
|
@operators ||= %w(
|
|
\|\+\| \|-\| \? \& \&\&\& < > << >> \* \| ~ \^ - \+ /
|
|
\# \. = != <= >= \+\+
|
|
)
|
|
end
|
|
|
|
def self.decls
|
|
@decls ||= %w(
|
|
control header header_union parser state struct table
|
|
value_set
|
|
)
|
|
end
|
|
|
|
def self.builtins
|
|
@builtins ||= %w(
|
|
bit bool error extract int isValid setValid setInvalid match_kind
|
|
string varbit verify void
|
|
)
|
|
end
|
|
|
|
state :whitespace do
|
|
rule %r/\s+/m, Text
|
|
end
|
|
|
|
state :comment do
|
|
rule %r((//).*$\n?), Comment::Single
|
|
rule %r/\/\*(?:(?!\*\/).)*\*\//m, Comment::Multiline
|
|
end
|
|
|
|
state :number do
|
|
rule %r/([0-9]+[sw])?0[oO][0-7_]+/, Num
|
|
rule %r/([0-9]+[sw])?0[xX][0-9a-fA-F_]+/, Num
|
|
rule %r/([0-9]+[sw])?0[bB][01_]+/, Num
|
|
rule %r/([0-9]+[sw])?0[dD][0-9_]+/, Num
|
|
rule %r/([0-9]+[sw])?[0-9_]+/, Num
|
|
end
|
|
|
|
id = /[\p{XID_Start}_]\p{XID_Continue}*/
|
|
string_element = /\\"|[^"]/x
|
|
|
|
state :root do
|
|
mixin :whitespace
|
|
mixin :comment
|
|
|
|
rule %r/#\s*#{id}/, Comment::Preproc
|
|
rule %r/\b(?:#{P4.keywords.join('|')})\b/, Keyword
|
|
rule %r/\b(?:#{P4.decls.join('|')})\b/, Keyword::Declaration
|
|
rule %r/\b(?:#{P4.builtins.join('|')})\b/, Name::Builtin
|
|
rule %r/\b#{id}_[th]\b/x, Name::Class
|
|
rule %r/(?:#{P4.operators.join('|')})/x, Operator
|
|
rule %r/[(){}\[\]<>,:;\.]/, Punctuation
|
|
mixin :number
|
|
rule %r/@#{id}/x, Name::Label
|
|
rule %r/#{id}/x, Text
|
|
rule %r/"(?: #{string_element} )*"/x, Str::String
|
|
end
|
|
end
|
|
end
|
|
end
|