1package n
 2
 3import (
 4	. "github.com/alecthomas/chroma" // nolint
 5	"github.com/alecthomas/chroma/lexers/internal"
 6)
 7
 8// Nasm lexer.
 9var Nasm = internal.Register(MustNewLexer(
10	&Config{
11		Name:            "NASM",
12		Aliases:         []string{"nasm"},
13		Filenames:       []string{"*.asm", "*.ASM"},
14		MimeTypes:       []string{"text/x-nasm"},
15		CaseInsensitive: true,
16	},
17	Rules{
18		"root": {
19			{`^\s*%`, CommentPreproc, Push("preproc")},
20			Include("whitespace"),
21			{`[a-z$._?][\w$.?#@~]*:`, NameLabel, nil},
22			{`([a-z$._?][\w$.?#@~]*)(\s+)(equ)`, ByGroups(NameConstant, KeywordDeclaration, KeywordDeclaration), Push("instruction-args")},
23			{`BITS|USE16|USE32|SECTION|SEGMENT|ABSOLUTE|EXTERN|GLOBAL|ORG|ALIGN|STRUC|ENDSTRUC|COMMON|CPU|GROUP|UPPERCASE|IMPORT|EXPORT|LIBRARY|MODULE`, Keyword, Push("instruction-args")},
24			{`(?:res|d)[bwdqt]|times`, KeywordDeclaration, Push("instruction-args")},
25			{`[a-z$._?][\w$.?#@~]*`, NameFunction, Push("instruction-args")},
26			{`[\r\n]+`, Text, nil},
27		},
28		"instruction-args": {
29			{"\"(\\\\\"|[^\"\\n])*\"|'(\\\\'|[^'\\n])*'|`(\\\\`|[^`\\n])*`", LiteralString, nil},
30			{`(?:0x[0-9a-f]+|$0[0-9a-f]*|[0-9]+[0-9a-f]*h)`, LiteralNumberHex, nil},
31			{`[0-7]+q`, LiteralNumberOct, nil},
32			{`[01]+b`, LiteralNumberBin, nil},
33			{`[0-9]+\.e?[0-9]+`, LiteralNumberFloat, nil},
34			{`[0-9]+`, LiteralNumberInteger, nil},
35			Include("punctuation"),
36			{`r[0-9][0-5]?[bwd]|[a-d][lh]|[er]?[a-d]x|[er]?[sb]p|[er]?[sd]i|[c-gs]s|st[0-7]|mm[0-7]|cr[0-4]|dr[0-367]|tr[3-7]`, NameBuiltin, nil},
37			{`[a-z$._?][\w$.?#@~]*`, NameVariable, nil},
38			{`[\r\n]+`, Text, Pop(1)},
39			Include("whitespace"),
40		},
41		"preproc": {
42			{`[^;\n]+`, CommentPreproc, nil},
43			{`;.*?\n`, CommentSingle, Pop(1)},
44			{`\n`, CommentPreproc, Pop(1)},
45		},
46		"whitespace": {
47			{`\n`, Text, nil},
48			{`[ \t]+`, Text, nil},
49			{`;.*`, CommentSingle, nil},
50		},
51		"punctuation": {
52			{`[,():\[\]]+`, Punctuation, nil},
53			{`[&|^<>+*/%~-]+`, Operator, nil},
54			{`[$]+`, KeywordConstant, nil},
55			{`seg|wrt|strict`, OperatorWord, nil},
56			{`byte|[dq]?word`, KeywordType, nil},
57		},
58	},
59))