forked from flashcat/categraf
35 lines
1001 B
Go
35 lines
1001 B
Go
// Copyright 2011 Google Inc. All Rights Reserved.
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// This file is available under the Apache license.
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package parser
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import (
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"fmt"
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"flashcat.cloud/categraf/inputs/mtail/internal/runtime/compiler/position"
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)
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// Kind enumerates the types of lexical tokens in a mtail program.
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type Kind int
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// String returns a readable name of the token Kind.
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func (k Kind) String() string {
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// 0xE000 is the magic offset for the first token ID in goyacc, and 2 is
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// the offset of the internal tokens in the token table. Yes this is a
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// hack around what appears to be an original yacc bug.
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return mtailTokname(int(k) - 0xE000 + 2)
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}
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// Token describes a lexed Token from the input, containing its type, the
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// original text of the Token, and its position in the input.
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type Token struct {
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Kind Kind
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Spelling string
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Pos position.Position
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}
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// String returns a printable form of a Token.
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func (t Token) String() string {
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return fmt.Sprintf("%s(%q,%s)", t.Kind.String(), t.Spelling, t.Pos)
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}
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