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68 lines
3.1 KiB
Go
68 lines
3.1 KiB
Go
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package y
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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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var YANG = internal.Register(MustNewLexer(
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&Config{
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Name: "YANG",
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Aliases: []string{"yang"},
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Filenames: []string{"*.yang"},
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MimeTypes: []string{"application/yang"},
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},
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Rules{
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"root": {
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{`\s+`, Whitespace, nil},
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{`[\{\}\;]+`, Punctuation, nil},
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{`(?<![\-\w])(and|or|not|\+|\.)(?![\-\w])`, Operator, nil},
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{`"(?:\\"|[^"])*?"`, StringDouble, nil},
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{`'(?:\\'|[^'])*?'`, StringSingle, nil},
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{`/\*`, CommentMultiline, Push("comments")},
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{`//.*?$`, CommentSingle, nil},
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//match BNF stmt for `node-identifier` with [ prefix ":"]
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{`(?:^|(?<=[\s{};]))([\w.-]+)(:)([\w.-]+)(?=[\s{};])`, ByGroups(KeywordNamespace, Punctuation, Text), nil},
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//match BNF stmt `date-arg-str`
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{`([0-9]{4}\-[0-9]{2}\-[0-9]{2})(?=[\s\{\}\;])`, LiteralDate, nil},
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{`([0-9]+\.[0-9]+)(?=[\s\{\}\;])`, NumberFloat, nil},
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{`([0-9]+)(?=[\s\{\}\;])`, NumberInteger, nil},
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//TOP_STMTS_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `module`, `submodule`), Keyword, nil},
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//MODULE_HEADER_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `belongs-to`, `namespace`, `prefix`, `yang-version`), Keyword, nil},
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//META_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `contact`, `description`, `organization`, `reference`, `revision`), Keyword, nil},
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//LINKAGE_STMTS_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `import`, `include`, `revision-date`), Keyword, nil},
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//BODY_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `action`, `argument`, `augment`, `deviation`, `extension`, `feature`, `grouping`, `identity`, `if-feature`, `input`, `notification`, `output`, `rpc`, `typedef`), Keyword, nil},
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//DATA_DEF_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `anydata`, `anyxml`, `case`, `choice`, `config`, `container`, `deviate`, `leaf`, `leaf-list`, `list`, `must`, `presence`, `refine`, `uses`, `when`), Keyword, nil},
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//TYPE_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `base`, `bit`, `default`, `enum`, `error-app-tag`, `error-message`, `fraction-digits`, `length`, `max-elements`, `min-elements`, `modifier`, `ordered-by`, `path`, `pattern`, `position`, `range`, `require-instance`, `status`, `type`, `units`, `value`, `yin-element`), Keyword, nil},
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//LIST_STMT_KEYWORDS
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{Words(``, `(?=[^\w\-\:])`, `key`, `mandatory`, `unique`), Keyword, nil},
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//CONSTANTS_KEYWORDS - RFC7950 other keywords
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{Words(``, `(?=[^\w\-\:])`, `add`, `current`, `delete`, `deprecated`, `false`, `invert-match`, `max`, `min`, `not-supported`, `obsolete`, `replace`, `true`, `unbounded`, `user`), NameClass, nil},
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//RFC7950 Built-In Types
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{Words(``, `(?=[^\w\-\:])`, `binary`, `bits`, `boolean`, `decimal64`, `empty`, `enumeration`, `identityref`, `instance-identifier`, `int16`, `int32`, `int64`, `int8`, `leafref`, `string`, `uint16`, `uint32`, `uint64`, `uint8`, `union`), NameClass, nil},
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{`[^;{}\s\'\"]+`, Text, nil},
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},
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"comments": {
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{`[^*/]`, CommentMultiline, nil},
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{`/\*`, CommentMultiline, Push("comment")},
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{`\*/`, CommentMultiline, Pop(1)},
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{`[*/]`, CommentMultiline, nil},
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},
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},
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))
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