gas.go

Documentation: github.com/alecthomas/chroma/lexers/g

     1  package g
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma" // nolint
     5  	"github.com/alecthomas/chroma/lexers/internal"
     6  )
     7  
     8  // Gas lexer.
     9  var Gas = internal.Register(MustNewLazyLexer(
    10  	&Config{
    11  		Name:      "GAS",
    12  		Aliases:   []string{"gas", "asm"},
    13  		Filenames: []string{"*.s", "*.S"},
    14  		MimeTypes: []string{"text/x-gas"},
    15  	},
    16  	gasRules,
    17  ))
    18  
    19  func gasRules() Rules {
    20  	return Rules{
    21  		"root": {
    22  			Include("whitespace"),
    23  			{`(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+):`, NameLabel, nil},
    24  			{`\.(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameAttribute, Push("directive-args")},
    25  			{`lock|rep(n?z)?|data\d+`, NameAttribute, nil},
    26  			{`(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameFunction, Push("instruction-args")},
    27  			{`[\r\n]+`, Text, nil},
    28  		},
    29  		"directive-args": {
    30  			{`(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameConstant, nil},
    31  			{`"(\\"|[^"])*"`, LiteralString, nil},
    32  			{`@(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameAttribute, nil},
    33  			{`(?:0[xX][a-zA-Z0-9]+|\d+)`, LiteralNumberInteger, nil},
    34  			{`[\r\n]+`, Text, Pop(1)},
    35  			Include("punctuation"),
    36  			Include("whitespace"),
    37  		},
    38  		"instruction-args": {
    39  			{`([a-z0-9]+)( )(<)((?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+))(>)`, ByGroups(LiteralNumberHex, Text, Punctuation, NameConstant, Punctuation), nil},
    40  			{`([a-z0-9]+)( )(<)((?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+))([-+])((?:0[xX][a-zA-Z0-9]+|\d+))(>)`, ByGroups(LiteralNumberHex, Text, Punctuation, NameConstant, Punctuation, LiteralNumberInteger, Punctuation), nil},
    41  			{`(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameConstant, nil},
    42  			{`(?:0[xX][a-zA-Z0-9]+|\d+)`, LiteralNumberInteger, nil},
    43  			{`%(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)`, NameVariable, nil},
    44  			{`$(?:0[xX][a-zA-Z0-9]+|\d+)`, LiteralNumberInteger, nil},
    45  			{`$'(.|\\')'`, LiteralStringChar, nil},
    46  			{`[\r\n]+`, Text, Pop(1)},
    47  			Include("punctuation"),
    48  			Include("whitespace"),
    49  		},
    50  		"whitespace": {
    51  			{`\n`, Text, nil},
    52  			{`\s+`, Text, nil},
    53  			{`[;#].*?\n`, Comment, nil},
    54  		},
    55  		"punctuation": {
    56  			{`[-*,.()\[\]!:]+`, Punctuation, nil},
    57  		},
    58  	}
    59  }
    60
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