parser

package

v1.0.0 Latest Latest Go to latest Published: Mar 10, 2022 License: GPL-3.0 Imports: 3 Imported by: 0

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Repository

gitee.com/colin_luo/dm

Links

Open Source Insights

Documentation ¶

Overview ¶

Index ¶

Constants
Variables
type LVal
- func (l *LVal) String() string
type Lexer
- func NewLexer(in io.RuneReader, debug bool) *Lexer
- func (lexer *Lexer) Reset(in io.RuneReader) *Lexer
- func (lexer *Lexer) Yylex() (*LVal, error)

Constants ¶

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const (
	NORMAL int = iota
	INT
	DOUBLE
	DECIMAL
	STRING
	HEX_INT
	WHITESPACE_OR_COMMENT
	NULL
)

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const (
	YYEOF         = -1    /** This character denotes the end of file */
	ZZ_BUFFERSIZE = 16384 /** initial size of the lookahead buffer */
	/** lexical states */
	YYINITIAL = 0
)

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const (
	ZZ_UNKNOWN_ERROR = 0
	ZZ_NO_MATCH      = 1
	ZZ_PUSHBACK_2BIG = 2
)

error codes

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const (
	MAX_DEC_LEN = 38
)

Variables ¶

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var ZZ_ACTION = zzUnpackActionNoParams()

* * Translates DFA states to action switch labels.

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var ZZ_ACTION_PACKED_0 []rune = []rune{}/* 130 elements not displayed */

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var ZZ_ATTRIBUTE []int = zzUnpackAttributeNoParams()

* * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>

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var ZZ_ATTRIBUTE_PACKED_0 []rune = []rune{0004, 0000, 0001, 0010, 0004, 0000, 0003, 0011, 0001, 0001, 0001, 0011, 0010, 0001, 0001, 0011,
	0017, 0001, 0004, 0011, 0001, 0001, 0001, 0011, 0001, 0000, 0002, 0011, 0001, 0001, 0001, 0000,
	0003, 0011, 0001, 0001, 0001, 0011, 0001, 0000, 0003, 0001, 0002, 0011, 0001, 0000, 0001, 0011,
	0002, 0000, 0001, 0011, 0004, 0000, 0002, 0011, 0001, 0001, 0001, 0000, 0003, 0001, 0003, 0000,
	0003, 0011, 0001, 0001, 0020, 0000, 0001, 0011, 0001, 0000, 0001, 0011, 0002, 0001}

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var ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED)

* * Translates characters to character classes

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var ZZ_CMAP_PACKED []rune = []rune{}/* 208 elements not displayed */

* * Translates characters to character classes

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var ZZ_ERROR_MSG []string = []string{
	"Unknown internal scanner error",
	"Error: could not match input",
	"Error: pushback Value was too large"}

error messages for the codes above

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var ZZ_LEXSTATE []int = []int{0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 4, 4, 7, 7, 8, 8}

* * ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l * ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l * at the beginning of a line * l is of the form l = 2*k, k a non negative integer

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var ZZ_ROWMAP = zzUnpackRowMapNoParams()

* * Translates a state to a row index in the transition table

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var ZZ_ROWMAP_PACKED_0 []rune = []rune{}/* 208 elements not displayed */

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var ZZ_TRANS []int = zzUnpackTransNoParams()

* * The transition table of the DFA

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var ZZ_TRANS_PACKED_0 []rune = []rune{}/* 780 elements not displayed */

Functions ¶

This section is empty.

Types ¶

type LVal ¶

type LVal struct {
	Value    string
	Tp       int
	Position int
}

func (*LVal) String ¶

func (l *LVal) String() string

type Lexer ¶

type Lexer struct {
	// contains filtered or unexported fields
}

func NewLexer ¶

func NewLexer(in io.RuneReader, debug bool) *Lexer

* * Creates a new scanner * * @param in the java.io.Reader to read input from.

func (*Lexer) Reset ¶

func (lexer *Lexer) Reset(in io.RuneReader) *Lexer

func (*Lexer) Yylex ¶

func (lexer *Lexer) Yylex() (*LVal, error)

* * Resumes scanning until the next regular expression is matched, * the end of input is encountered or an I/O-Error occurs. * * @return the next token * @exception java.io.IOException if any I/O-Error occurs

Source Files ¶

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