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60 lines
2 KiB
Go
60 lines
2 KiB
Go
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package n
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Nasm lexer.
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var Nasm = internal.Register(MustNewLexer(
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&Config{
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Name: "NASM",
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Aliases: []string{"nasm"},
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Filenames: []string{"*.asm", "*.ASM"},
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MimeTypes: []string{"text/x-nasm"},
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CaseInsensitive: true,
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},
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Rules{
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"root": {
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{`^\s*%`, CommentPreproc, Push("preproc")},
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Include("whitespace"),
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{`[a-z$._?][\w$.?#@~]*:`, NameLabel, nil},
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{`([a-z$._?][\w$.?#@~]*)(\s+)(equ)`, ByGroups(NameConstant, KeywordDeclaration, KeywordDeclaration), Push("instruction-args")},
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{`BITS|USE16|USE32|SECTION|SEGMENT|ABSOLUTE|EXTERN|GLOBAL|ORG|ALIGN|STRUC|ENDSTRUC|COMMON|CPU|GROUP|UPPERCASE|IMPORT|EXPORT|LIBRARY|MODULE`, Keyword, Push("instruction-args")},
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{`(?:res|d)[bwdqt]|times`, KeywordDeclaration, Push("instruction-args")},
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{`[a-z$._?][\w$.?#@~]*`, NameFunction, Push("instruction-args")},
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{`[\r\n]+`, Text, nil},
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},
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"instruction-args": {
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{"\"(\\\\\"|[^\"\\n])*\"|'(\\\\'|[^'\\n])*'|`(\\\\`|[^`\\n])*`", LiteralString, nil},
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{`(?:0x[0-9a-f]+|$0[0-9a-f]*|[0-9]+[0-9a-f]*h)`, LiteralNumberHex, nil},
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{`[0-7]+q`, LiteralNumberOct, nil},
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{`[01]+b`, LiteralNumberBin, nil},
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{`[0-9]+\.e?[0-9]+`, LiteralNumberFloat, nil},
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{`[0-9]+`, LiteralNumberInteger, nil},
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Include("punctuation"),
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{`r[0-9][0-5]?[bwd]|[a-d][lh]|[er]?[a-d]x|[er]?[sb]p|[er]?[sd]i|[c-gs]s|st[0-7]|mm[0-7]|cr[0-4]|dr[0-367]|tr[3-7]`, NameBuiltin, nil},
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{`[a-z$._?][\w$.?#@~]*`, NameVariable, nil},
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{`[\r\n]+`, Text, Pop(1)},
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Include("whitespace"),
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},
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"preproc": {
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{`[^;\n]+`, CommentPreproc, nil},
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{`;.*?\n`, CommentSingle, Pop(1)},
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{`\n`, CommentPreproc, Pop(1)},
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},
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"whitespace": {
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{`\n`, Text, nil},
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{`[ \t]+`, Text, nil},
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{`;.*`, CommentSingle, nil},
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},
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"punctuation": {
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{`[,():\[\]]+`, Punctuation, nil},
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{`[&|^<>+*/%~-]+`, Operator, nil},
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{`[$]+`, KeywordConstant, nil},
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{`seg|wrt|strict`, OperatorWord, nil},
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{`byte|[dq]?word`, KeywordType, nil},
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},
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},
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))
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