You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: armasm.go
    path of file: ./repos/scan4all/vendor/github.com/alecthomas/chroma/lexers/a
    
    the code of the file until where you have to start completion: package a

import (
	. "github.com/alecthomas/chroma" // nolint
	"github.com/alecthomas/chroma/lexers/internal"
)

var ArmAsm = internal.Register(MustNewLazyLexer(
	&Config{
		Name:      "ArmAsm",
		Aliases:   []string{"armasm"},
		EnsureNL:  true,
		Filenames: []string{"*.s", "*.S"},
		MimeTypes: []string{"text/x-armasm", "text/x-asm"},
	},
	armasmRules,
))

func armasmRules() Rules {
	return Rules{
		"commentsandwhitespace": {
			{`\s+`, Text, nil},
			{`[@;].*?\n`, CommentSingle, nil},
			{`/\*.*?\*/`, CommentMultiline, nil},
		},
		"literal": {
			// Binary
			{`0b[01]+`, NumberBin, Pop(1)},
			// Hex
			{`0x\w{
    
func armasmRules() Rules {
	return Rules{
		"commentsandwhitespace": {
			{`\s+`, Text, nil},
			{`[@;].*?\n`, CommentSingle, nil},
			{`/\*.*?\*/`, CommentMultiline, nil},
		},
		"literal": {
			// Binary
			{`0b[01]+`, NumberBin, Pop(1)},
			// Hex
			{`0x\w{1,8}`, NumberHex, Pop(1)},
			// Octal
			{`0\d+`, NumberOct, Pop(1)},
			// Float
			{`\d+?\.\d+?`, NumberFloat, Pop(1)},
			// Integer
			{`\d+`, NumberInteger, Pop(1)},
			// String
			{`(")(.+)(")`, ByGroups(Punctuation, StringDouble, Punctuation), Pop(1)},
			// Char
			{`(')(.{1}|\\.{1})(')`, ByGroups(Punctuation, StringChar, Punctuation), Pop(1)},
		},
		"opcode": {
			// Escape at line end
			{`\n`, Text, Pop(1)},
			// Comment
			{`(@|;).*\n`, CommentSingle, Pop(1)},
			// Whitespace
			{`(\s+|,)`, Text, nil},
			// Register by number
			{`[rapcfxwbhsdqv]\d{1,2}`, NameClass, nil},
			// Address by hex
			{`=0x\w+`, ByGroups(Text, NameLabel), nil},
			// Pseudo address by label
			{`(=)(\w+)`, ByGroups(Text, NameLabel), nil},
			// Immediate
			{`#`, Text, Push("literal")},
		},
		"root": {
			Include("commentsandwhitespace"),
			// Directive with optional param
			{`(\.\w+)([ \t]+\w+\s+?)?`, ByGroups(KeywordNamespace, NameLabel), nil},
			// Label with data
			{`(\w+)(:)(\s+\.\w+\s+)`, ByGroups(NameLabel, Punctuation, KeywordNamespace), Push("literal")},
			// Label
			{`(\w+)(:)`, ByGroups(NameLabel, Punctuation), nil},
			// Syscall Op
			{`svc\s+\w+`, NameNamespace, nil},
			// Opcode
			{`[a-zA-Z]+`, Text, Push("opcode")},
		},
	}
}