protobuf.go

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

     1  package p
     2  
     3  import (
     4  	. "github.com/alecthomas/chroma" // nolint
     5  	"github.com/alecthomas/chroma/lexers/internal"
     6  )
     7  
     8  // ProtocolBuffer lexer.
     9  var ProtocolBuffer = internal.Register(MustNewLazyLexer(
    10  	&Config{
    11  		Name:      "Protocol Buffer",
    12  		Aliases:   []string{"protobuf", "proto"},
    13  		Filenames: []string{"*.proto"},
    14  		MimeTypes: []string{},
    15  	},
    16  	protocolBufferRules,
    17  ))
    18  
    19  func protocolBufferRules() Rules {
    20  	return Rules{
    21  		"root": {
    22  			{`[ \t]+`, Text, nil},
    23  			{`[,;{}\[\]()<>]`, Punctuation, nil},
    24  			{`/(\\\n)?/(\n|(.|\n)*?[^\\]\n)`, CommentSingle, nil},
    25  			{`/(\\\n)?\*(.|\n)*?\*(\\\n)?/`, CommentMultiline, nil},
    26  			{Words(`\b`, `\b`, `import`, `option`, `optional`, `required`, `repeated`, `default`, `packed`, `ctype`, `extensions`, `to`, `max`, `rpc`, `returns`, `oneof`), Keyword, nil},
    27  			{Words(``, `\b`, `int32`, `int64`, `uint32`, `uint64`, `sint32`, `sint64`, `fixed32`, `fixed64`, `sfixed32`, `sfixed64`, `float`, `double`, `bool`, `string`, `bytes`), KeywordType, nil},
    28  			{`(true|false)\b`, KeywordConstant, nil},
    29  			{`(package)(\s+)`, ByGroups(KeywordNamespace, Text), Push("package")},
    30  			{`(message|extend)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("message")},
    31  			{`(enum|group|service)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("type")},
    32  			{`\".*?\"`, LiteralString, nil},
    33  			{`\'.*?\'`, LiteralString, nil},
    34  			{`(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*`, LiteralNumberFloat, nil},
    35  			{`(\d+\.\d*|\.\d+|\d+[fF])[fF]?`, LiteralNumberFloat, nil},
    36  			{`(\-?(inf|nan))\b`, LiteralNumberFloat, nil},
    37  			{`0x[0-9a-fA-F]+[LlUu]*`, LiteralNumberHex, nil},
    38  			{`0[0-7]+[LlUu]*`, LiteralNumberOct, nil},
    39  			{`\d+[LlUu]*`, LiteralNumberInteger, nil},
    40  			{`[+-=]`, Operator, nil},
    41  			{`([a-zA-Z_][\w.]*)([ \t]*)(=)`, ByGroups(Name, Text, Operator), nil},
    42  			{`[a-zA-Z_][\w.]*`, Name, nil},
    43  		},
    44  		"package": {
    45  			{`[a-zA-Z_]\w*`, NameNamespace, Pop(1)},
    46  			Default(Pop(1)),
    47  		},
    48  		"message": {
    49  			{`[a-zA-Z_]\w*`, NameClass, Pop(1)},
    50  			Default(Pop(1)),
    51  		},
    52  		"type": {
    53  			{`[a-zA-Z_]\w*`, Name, Pop(1)},
    54  			Default(Pop(1)),
    55  		},
    56  	}
    57  }
    58
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