Add bin and edit workflow

bin/gems/rouge-4.5.1/lib/rouge/lexers/bpf.rb

@@ -0,0 +1,118 @@
+# -*- coding: utf-8 -*- #
+# frozen_string_literal: true
+
+module Rouge
+  module Lexers
+    class BPF < RegexLexer
+      title "BPF"
+      desc "BPF bytecode syntax"
+      tag 'bpf'
+
+      TYPE_KEYWORDS = %w(
+        u8 u16 u32 u64 s8 s16 s32 s64 ll
+      ).join('|')
+
+      MISC_KEYWORDS = %w(
+        be16 be32 be64 le16 le32 le64 bswap16 bswap32 bswap64 exit lock map
+      ).join('|')
+
+      state :root do
+        # Line numbers and hexadecimal output from bpftool/objdump
+        rule %r/(\d+)(:)(\s+)(\(\h{2}\))/i do
+          groups Generic::Lineno, Punctuation, Text::Whitespace, Generic
+        end
+        rule %r/(\d+)(:)(\s+)((?:\h{2} ){8})/i do
+          groups Generic::Lineno, Punctuation, Text::Whitespace, Generic
+        end
+        rule %r/(\d+)(:)(\s+)/i do
+          groups Generic::Lineno, Punctuation, Text::Whitespace
+        end
+
+        # Calls to helpers
+        rule %r/(call)(\s+)(\d+)/i do
+          groups Keyword, Text::Whitespace, Literal::Number::Integer
+        end
+        rule %r/(call)(\s+)(\w+)(?:(#)(\d+))?/i do
+          groups Keyword, Text::Whitespace, Name::Builtin, Punctuation, Literal::Number::Integer
+        end
+
+        # Unconditional jumps
+        rule %r/(gotol?)(\s*)([-+]0x\w+)?([-+]\d+)?(\s*)(<?\w+>?)/i do
+          groups Keyword, Text::Whitespace, Literal::Number::Hex, Literal::Number::Integer, Text::Whitespace, Name::Label
+        end
+
+        # Conditional jumps
+        rule %r/(if)(\s+)([rw]\d+)(\s*)([s!=<>]+)(\s*)(0x\h+|[-]?\d+)(\s*)(gotol?)(\s*)([-+]0x\w+)?([-+]\d+)?(\s*)(<?\w+>?)/i do
+          groups Keyword, Text::Whitespace, Name, Text::Whitespace, Operator, Text::Whitespace, Literal::Number, Text::Whitespace, Keyword, Text::Whitespace, Literal::Number::Hex, Literal::Number::Integer, Text::Whitespace, Name::Label
+        end
+        rule %r/(if)(\s+)([rw]\d+)(\s*)([s!=<>]+)(\s*)([rw]\d+)(\s*)(gotol?)(\s*)([-+]0x\w+)?([-+]\d+)?(\s*)(<?\w+>?)/i do
+          groups Keyword, Text::Whitespace, Name, Text::Whitespace, Operator, Text::Whitespace, Name, Text::Whitespace, Keyword, Text::Whitespace, Literal::Number::Hex, Literal::Number::Integer, Text::Whitespace, Name::Label
+        end
+
+        # Dereferences
+        rule %r/(\*)(\s*)(\()(#{TYPE_KEYWORDS})(\s*)(\*)(\))/i do
+          groups Operator, Text::Whitespace, Punctuation, Keyword::Type, Text::Whitespace, Operator, Punctuation
+          push :address
+        end
+
+        # Operators
+        rule %r/[+-\/\*&|><^s]{0,3}=/i, Operator
+
+        # Registers
+        rule %r/([+-]?)([rw]\d+)/i do
+          groups Punctuation, Name
+        end
+
+        # Comments
+        rule %r/\/\//, Comment::Single, :linecomment
+        rule %r/\/\*/, Comment::Multiline, :multilinescomment
+
+        rule %r/#{MISC_KEYWORDS}/i, Keyword
+
+        # Literals and global objects (maps) refered by name
+        rule %r/([-]?0x\h+|[-]?\d+)(\s*)(ll)?/i do
+          groups Literal::Number, Text::Whitespace, Keyword::Type
+        end
+        rule %r/(\w+)(\s*)(ll)/i do
+          groups Name, Text::Whitespace, Keyword::Type
+        end
+
+        # Labels
+        rule %r/(\w+)(\s*)(:)/i do
+          groups Name::Label, Text::Whitespace, Punctuation
+        end
+
+        rule %r{.}m, Text
+      end
+
+      state :address do
+        # Address is offset from register
+        rule %r/(\()([rw]\d+)(\s*)([+-])(\s*)(\d+)(\))/i do
+          groups Punctuation, Name, Text::Whitespace, Operator, Text::Whitespace, Literal::Number::Integer, Punctuation
+          pop!
+        end
+
+        # Address is array subscript
+        rule %r/(\w+)(\[)(\d+)(\])/i do
+          groups Name, Punctuation, Literal::Number::Integer, Punctuation
+          pop!
+        end
+        rule %r/(\w+)(\[)([rw]\d+)(\])/i do
+          groups Name, Punctuation, Name, Punctuation
+          pop!
+        end
+      end
+
+      state :linecomment do
+        rule %r/\n/, Comment::Single, :pop!
+        rule %r/.+/, Comment::Single
+      end
+
+      state :multilinescomment do
+        rule %r/\*\//, Comment::Multiline, :pop!
+        rule %r/([^\*\/]+)/, Comment::Multiline
+        rule %r/([\*\/])/, Comment::Multiline
+      end
+    end
+  end
+end