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/*
* Copyright (c) 2000-2018, 达梦数据库有限公司.
* All rights reserved.
*/
package parser
import (
"io"
"strconv"
"unicode/utf8"
)
const (
YYEOF = -1 /** This character denotes the end of file */
ZZ_BUFFERSIZE = 16384 /** initial size of the lookahead buffer */
/** lexical states */
YYINITIAL = 0
xc = 2
xq = 4
xdq = 6
xsb = 8
xbin = 10
xhex = 12
xhint = 14
xq2 = 16
xq2_2 = 18
)
/**
* 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
*/
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}
/**
* Translates characters to character classes
*/
var ZZ_CMAP_PACKED []rune = []rune{0011, 0000, 0001, 0026, 0001, 0025, 0001, 0030, 0001, 0026, 0001, 0025, 0022, 0000, 0001, 0026, 0001, 0017, 0001, 0002,
0002, 0012, 0002, 0017, 0001, 0001, 0002, 0017, 0001, 0004, 0001, 0023, 0001, 0017, 0001, 0027, 0001, 0016, 0001, 0003,
0001, 0020, 0011, 0013, 0001, 0014, 0001, 0017, 0001, 0017, 0001, 0015, 0003, 0017, 0001, 0021, 0001, 0010, 0001, 0021,
0001, 0024, 0001, 0022, 0001, 0024, 0002, 0012, 0001, 0034, 0002, 0012, 0001, 0033, 0001, 0012, 0001, 0031, 0001, 0036,
0001, 0012, 0001, 0007, 0001, 0012, 0001, 0035, 0001, 0037, 0001, 0032, 0002, 0012, 0001, 0011, 0002, 0012, 0001, 0005,
0001, 0000, 0001, 0006, 0001, 0017, 0001, 0012, 0001, 0000, 0001, 0021, 0001, 0010, 0001, 0021, 0001, 0024, 0001, 0022,
0001, 0024, 0002, 0012, 0001, 0034, 0002, 0012, 0001, 0033, 0001, 0012, 0001, 0031, 0001, 0036, 0001, 0012, 0001, 0007,
0001, 0012, 0001, 0035, 0001, 0037, 0001, 0032, 0002, 0012, 0001, 0011, 0002, 0012, 0001, 0017, 0001, 0017, 0002, 0017,
0001, 0000, 0005, 0012, 0001, 0012, 0172, 0012, 0x1f28, 0000, 0001, 0030, 0001, 0030, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xffff, 0000, 0xdfe6, 0000}
/**
* Translates characters to character classes
*/
var ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED)
/**
* Translates DFA states to action switch labels.
*/
var ZZ_ACTION = zzUnpackActionNoParams()
var ZZ_ACTION_PACKED_0 []rune = []rune{0011, 0000, 0001, 0001, 0001, 0002, 0001, 0003, 0002, 0004, 0004, 0005, 0001, 0006, 0002, 0004,
0001, 0006, 0001, 0007, 0001, 0004, 0002, 0005, 0001, 0010, 0002, 0011, 0001, 0012, 0001, 0013,
0001, 0014, 0001, 0015, 0001, 0016, 0001, 0017, 0001, 0020, 0001, 0021, 0001, 0022, 0001, 0023,
0001, 0024, 0001, 0025, 0001, 0026, 0001, 0007, 0001, 0027, 0001, 0000, 0001, 0030, 0001, 0031,
0001, 0032, 0001, 0000, 0001, 0033, 0001, 0034, 0001, 0035, 0001, 0032, 0001, 0036, 0001, 0000,
0003, 0005, 0001, 0037, 0001, 0040, 0001, 0000, 0001, 0041, 0002, 0000, 0001, 0042, 0004, 0000,
0001, 0043, 0001, 0044, 0001, 0033, 0001, 0000, 0001, 0045, 0002, 0005, 0003, 0000, 0001, 0046,
0001, 0047, 0001, 0050, 0001, 0051, 0020, 0000, 0001, 0052, 0001, 0000, 0001, 0053, 0001, 0052,
0001, 0053}
func zzUnpackActionNoParams() []int {
result := make([]int, 104)
offset := 0
offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result)
return result
}
func zzUnpackAction(packed []rune, offset int, result []int) int {
i := 0 /* index in packed string */
j := offset /* index in unpacked array */
l := len(packed) //130
for i < l {
count := packed[i]
i++
value := packed[i]
i++
result[j] = int(value)
j++
count--
for count > 0 {
result[j] = int(value)
j++
count--
}
}
return j
}
/**
* Translates a state to a row index in the transition table
*/
var ZZ_ROWMAP = zzUnpackRowMapNoParams()
var ZZ_ROWMAP_PACKED_0 []rune = []rune{0000, 0000, 0000, 0040, 0000, 0100, 0000, 0140, 0000, 0200, 0000, 0240, 0000, 0300, 0000, 0340,
0000, 0x0100, 0000, 0200, 0000, 0200, 0000, 0200, 0000, 0x0120, 0000, 0200, 0000, 0x0140, 0000, 0x0160,
0000, 0x0180, 0000, 0x01a0, 0000, 0x01c0, 0000, 0x01e0, 0000, 0x0200, 0000, 0x0220, 0000, 0200, 0000, 0x0240,
0000, 0x0260, 0000, 0x0280, 0000, 0x02a0, 0000, 0x02c0, 0000, 0x02e0, 0000, 0x0300, 0000, 0x0320, 0000, 0x0340,
0000, 0x0360, 0000, 0x0380, 0000, 0x03a0, 0000, 0x03c0, 0000, 0x03e0, 0000, 0x0400, 0000, 0200, 0000, 0200,
0000, 0200, 0000, 0200, 0000, 0x0420, 0000, 0200, 0000, 0x0440, 0000, 0200, 0000, 0200, 0000, 0x0460,
0000, 0x0480, 0000, 0200, 0000, 0200, 0000, 0200, 0000, 0x04a0, 0000, 0200, 0000, 0x04c0, 0000, 0x04e0,
0000, 0x0500, 0000, 0x0520, 0000, 0200, 0000, 0200, 0000, 0x02e0, 0000, 0200, 0000, 0x0540, 0000, 0x0560,
0000, 0200, 0000, 0x0580, 0000, 0x03a0, 0000, 0x05a0, 0000, 0x03e0, 0000, 0200, 0000, 0200, 0000, 0x05c0,
0000, 0x05c0, 0000, 0x04c0, 0000, 0x05e0, 0000, 0x0600, 0000, 0x0620, 0000, 0x0640, 0000, 0x0660, 0000, 0200,
0000, 0200, 0000, 0200, 0000, 0x01a0, 0000, 0x0680, 0000, 0x06a0, 0000, 0x06c0, 0000, 0x06e0, 0000, 0x0700,
0000, 0x0720, 0000, 0x0740, 0000, 0x0760, 0000, 0x0780, 0000, 0x07a0, 0000, 0x07c0, 0000, 0x07e0, 0000, 0x0800,
0000, 0x0820, 0000, 0x0840, 0000, 0x0860, 0000, 0200, 0000, 0x0880, 0000, 0200, 0000, 0x06e0, 0000, 0x0720}
func zzUnpackRowMapNoParams() []int {
result := make([]int, 104)
offset := 0
offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result)
return result
}
func zzUnpackRowMap(packed []rune, offset int, result []int) int {
i := 0 /* index in packed string */
j := offset /* index in unpacked array */
l := len(packed) //208
for i < l {
high := packed[i] << 16
i++
result[j] = int(high | packed[i])
i++
j++
}
return j
}
/**
* The transition table of the DFA
*/
var ZZ_TRANS []int = zzUnpackTransNoParams()
var ZZ_TRANS_PACKED_0 []rune = []rune{0001, 0012, 0001, 0013, 0001, 0014, 0001, 0015, 0003, 0016, 0001, 0017, 0001, 0020, 0001, 0021,
0001, 0022, 0001, 0023, 0001, 0024, 0001, 0016, 0001, 0025, 0001, 0016, 0001, 0026, 0002, 0022,
0001, 0016, 0001, 0022, 0002, 0027, 0001, 0030, 0001, 0000, 0001, 0031, 0002, 0022, 0001, 0032,
0003, 0022, 0003, 0033, 0001, 0034, 0001, 0035, 0033, 0033, 0001, 0036, 0001, 0037, 0036, 0036,
0002, 0040, 0001, 0041, 0035, 0040, 0040, 0000, 0001, 0042, 0001, 0043, 0036, 0042, 0001, 0044,
0001, 0045, 0036, 0044, 0006, 0046, 0001, 0047, 0031, 0046, 0001, 0050, 0001, 0051, 0004, 0050,
0001, 0052, 0031, 0050, 0003, 0000, 0001, 0053, 0001, 0054, 0034, 0000, 0001, 0055, 0005, 0000,
0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000, 0007, 0022, 0001, 0000,
0001, 0056, 0005, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000,
0007, 0022, 0001, 0000, 0001, 0057, 0005, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000,
0001, 0022, 0004, 0000, 0007, 0022, 0007, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000,
0001, 0022, 0004, 0000, 0007, 0022, 0013, 0000, 0001, 0023, 0002, 0000, 0001, 0060, 0001, 0000,
0001, 0023, 0001, 0000, 0001, 0061, 0001, 0000, 0001, 0062, 0030, 0000, 0001, 0063, 0026, 0000,
0001, 0064, 0006, 0000, 0001, 0065, 0002, 0000, 0001, 0066, 0001, 0000, 0001, 0065, 0030, 0000,
0001, 0067, 0001, 0000, 0001, 0023, 0002, 0000, 0001, 0060, 0001, 0000, 0001, 0023, 0001, 0000,
0001, 0061, 0001, 0000, 0001, 0062, 0042, 0000, 0001, 0053, 0017, 0000, 0005, 0022, 0004, 0000,
0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000, 0001, 0022, 0001, 0070, 0003, 0022, 0001, 0071,
0001, 0022, 0007, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000,
0004, 0022, 0001, 0072, 0002, 0022, 0003, 0033, 0002, 0000, 0033, 0033, 0004, 0000, 0001, 0073,
0036, 0000, 0001, 0074, 0001, 0075, 0033, 0000, 0001, 0036, 0001, 0000, 0036, 0036, 0001, 0000,
0001, 0076, 0023, 0000, 0001, 0077, 0001, 0100, 0011, 0000, 0002, 0040, 0001, 0000, 0035, 0040,
0002, 0000, 0001, 0101, 0035, 0000, 0001, 0042, 0001, 0000, 0036, 0042, 0025, 0000, 0001, 0102,
0001, 0103, 0011, 0000, 0001, 0044, 0001, 0000, 0036, 0044, 0025, 0000, 0001, 0104, 0001, 0105,
0011, 0000, 0006, 0046, 0001, 0000, 0031, 0046, 0025, 0053, 0001, 0000, 0012, 0053, 0005, 0000,
0001, 0106, 0045, 0000, 0001, 0065, 0002, 0000, 0001, 0107, 0001, 0000, 0001, 0065, 0001, 0000,
0001, 0061, 0001, 0000, 0001, 0062, 0026, 0000, 0001, 0110, 0004, 0000, 0001, 0110, 0002, 0000,
0001, 0111, 0003, 0000, 0001, 0111, 0023, 0000, 0001, 0065, 0004, 0000, 0001, 0065, 0001, 0000,
0001, 0061, 0001, 0000, 0001, 0062, 0023, 0000, 0001, 0112, 0002, 0000, 0001, 0112, 0004, 0000,
0003, 0112, 0001, 0000, 0001, 0112, 0022, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000,
0001, 0022, 0004, 0000, 0002, 0022, 0001, 0113, 0004, 0022, 0007, 0000, 0005, 0022, 0004, 0000,
0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000, 0006, 0022, 0001, 0114, 0003, 0000, 0001, 0115,
0003, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000, 0001, 0022, 0002, 0116, 0001, 0117,
0001, 0000, 0007, 0022, 0001, 0000, 0001, 0120, 0023, 0000, 0002, 0077, 0036, 0000, 0001, 0077,
0001, 0100, 0012, 0000, 0001, 0121, 0023, 0000, 0002, 0102, 0012, 0000, 0001, 0122, 0023, 0000,
0002, 0104, 0024, 0000, 0001, 0110, 0004, 0000, 0001, 0110, 0026, 0000, 0005, 0022, 0004, 0000,
0003, 0022, 0001, 0000, 0001, 0022, 0004, 0000, 0002, 0022, 0001, 0123, 0004, 0022, 0003, 0000,
0001, 0124, 0003, 0000, 0005, 0022, 0004, 0000, 0003, 0022, 0001, 0000, 0001, 0022, 0002, 0125,
0001, 0126, 0001, 0000, 0007, 0022, 0003, 0000, 0001, 0127, 0037, 0000, 0001, 0115, 0021, 0000,
0002, 0116, 0001, 0117, 0001, 0000, 0001, 0130, 0035, 0000, 0001, 0127, 0013, 0000, 0001, 0131,
0037, 0000, 0001, 0124, 0021, 0000, 0002, 0125, 0001, 0126, 0001, 0000, 0001, 0132, 0035, 0000,
0001, 0131, 0010, 0000, 0025, 0127, 0001, 0116, 0003, 0127, 0001, 0133, 0006, 0127, 0032, 0000,
0001, 0134, 0005, 0000, 0025, 0131, 0001, 0125, 0003, 0131, 0001, 0135, 0006, 0131, 0032, 0000,
0001, 0136, 0005, 0000, 0025, 0127, 0001, 0116, 0003, 0127, 0001, 0133, 0001, 0137, 0005, 0127,
0033, 0000, 0001, 0140, 0004, 0000, 0025, 0131, 0001, 0125, 0003, 0131, 0001, 0135, 0001, 0141,
0005, 0131, 0033, 0000, 0001, 0142, 0004, 0000, 0025, 0127, 0001, 0116, 0003, 0127, 0001, 0133,
0001, 0127, 0001, 0143, 0004, 0127, 0033, 0000, 0001, 0144, 0004, 0000, 0025, 0131, 0001, 0125,
0003, 0131, 0001, 0135, 0001, 0131, 0001, 0145, 0004, 0131, 0033, 0000, 0001, 0146, 0004, 0000,
0025, 0127, 0001, 0116, 0003, 0127, 0001, 0133, 0001, 0127, 0001, 0147, 0004, 0127, 0025, 0131,
0001, 0125, 0003, 0131, 0001, 0135, 0001, 0131, 0001, 0150, 0004, 0131}
func zzUnpackTransNoParams() []int {
result := make([]int, 2208)
offset := 0
offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result)
return result
}
func zzUnpackTrans(packed []rune, offset int, result []int) int {
i := 0 /* index in packed string */
j := offset /* index in unpacked array */
l := len(packed) //780
for i < l {
count := packed[i]
i++
value := packed[i]
i++
value--
result[j] = int(value)
j++
count--
for count > 0 {
result[j] = int(value)
j++
count--
}
}
return j
}
/* error codes */
const (
ZZ_UNKNOWN_ERROR = 0
ZZ_NO_MATCH = 1
ZZ_PUSHBACK_2BIG = 2
)
/* error messages for the codes above */
var ZZ_ERROR_MSG []string = []string{
"Unknown internal scanner error",
"Error: could not match input",
"Error: pushback Value was too large"}
/**
* ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
*/
var ZZ_ATTRIBUTE []int = zzUnpackAttributeNoParams()
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}
func zzUnpackAttributeNoParams() []int {
result := make([]int, 104)
offset := 0
offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result)
return result
}
func zzUnpackAttribute(packed []rune, offset int, result []int) int {
i := 0 /* index in packed string */
j := offset /* index in unpacked array */
l := len(packed) //78
for i < l {
count := packed[i]
i++
value := packed[i]
i++
result[j] = int(value)
j++
count--
for count > 0 {
result[j] = int(value)
j++
count--
}
}
return j
}
type Lexer struct {
/** the input device */
zzReader io.RuneReader
/** the current state of the DFA */
zzState int
/** the current lexical state */
zzLexicalState int
/** this buffer contains the current text to be matched and is
the source of the yytext() string */
zzBuffer []rune
//zzBytesBuffer []byte
/** the textposition at the last accepting state */
zzMarkedPos int
/** the current text Position in the buffer */
zzCurrentPos int
/** startRead marks the beginning of the yytext() string in the buffer */
zzStartRead int
/** endRead marks the last character in the buffer, that has been read
from input */
zzEndRead int
/** number of newlines encountered up to the start of the matched text */
yyline int
/** the number of characters up to the start of the matched text */
yychar int
/**
* the number of characters from the last newline up to the start of the
* matched text
*/
yycolumn int
/**
* zzAtBOL == true <=> the scanner is currently at the beginning of a line
*/
zzAtBOL bool
/** zzAtEOF == true <=> the scanner is at the EOF */
zzAtEOF bool
/** denotes if the user-EOF-code has already been executed */
zzEOFDone bool
/**
* The number of occupied positions in zzBuffer beyond zzEndRead.
* When a lead/high surrogate has been read from the input stream
* into the final zzBuffer Position, this will have a Value of 1;
* otherwise, it will have a Value of 0.
*/
zzFinalHighSurrogate int
/* user code: */
ltstr string
debugFlag bool
}
func (lexer *Lexer) init() {
lexer.zzLexicalState = YYINITIAL
lexer.zzBuffer = make([]rune, ZZ_BUFFERSIZE)
lexer.zzAtBOL = true
}
func (lexer *Lexer) Reset(in io.RuneReader) *Lexer {
lexer.zzLexicalState = YYINITIAL
lexer.zzAtBOL = true
lexer.zzReader = in
lexer.zzState = 0
lexer.zzMarkedPos = 0
lexer.zzCurrentPos = 0
lexer.zzStartRead = 0
lexer.zzEndRead = 0
lexer.yyline = 0
lexer.yychar = 0
lexer.yycolumn = 0
lexer.zzAtEOF = false
lexer.zzEOFDone = false
lexer.zzFinalHighSurrogate = 0
lexer.ltstr = ""
return lexer
}
func (lexer *Lexer) debug(info string) {
if !lexer.debugFlag {
return
}
}
func (lexer *Lexer) yyerror(msg string) {
locInfo := "(line: " + strconv.Itoa(lexer.yyline) + ", column: " + strconv.Itoa(lexer.yycolumn) + ", char: " + strconv.Itoa(lexer.yychar) + ")"
if msg == "" {
panic("syntex error" + locInfo)
} else {
panic("syntex error" + locInfo + ": " + msg)
}
}
/**
* Creates a new scanner
*
* @param in the java.io.Reader to read input from.
*/
func NewLexer(in io.RuneReader, debug bool) *Lexer {
l := new(Lexer)
l.init()
l.debugFlag = debug
l.zzReader = in
return l
}
/**
* Unpacks the compressed character translation table.
*
* @param packed the packed character translation table
* @return the unpacked character translation table
*/
func zzUnpackCMap(packed []rune) []rune {
m := make([]rune, 0x110000)
i := 0 /* index in packed string */
j := 0 /* index in unpacked array */
for i < 208 {
count := packed[i]
i++
value := packed[i]
i++
m[j] = value
j++
count--
for count > 0 {
m[j] = value
j++
count--
}
}
return m
}
/**
* Refills the input buffer.
*
* @return <code>false</code>, iff there was new input.
*
* @exception java.io.IOException if any I/O-Error occurs
*/
func (lexer *Lexer) zzRefill() (bool, error) {
/* first: make room (if you can) */
if lexer.zzStartRead > 0 {
lexer.zzEndRead += lexer.zzFinalHighSurrogate
lexer.zzFinalHighSurrogate = 0
l := lexer.zzEndRead - lexer.zzStartRead
if l > 0 {
copy(lexer.zzBuffer[:l], lexer.zzBuffer[lexer.zzStartRead:lexer.zzEndRead])
}
/* translate stored positions */
lexer.zzEndRead -= lexer.zzStartRead
lexer.zzCurrentPos -= lexer.zzStartRead
lexer.zzMarkedPos -= lexer.zzStartRead
lexer.zzStartRead = 0
}
/* is the buffer big enough? */
if lexer.zzCurrentPos >= len(lexer.zzBuffer)-lexer.zzFinalHighSurrogate {
/* if not: blow it up */
newBuffer := make([]rune, len(lexer.zzBuffer)*2)
copy(newBuffer[:len(lexer.zzBuffer)], lexer.zzBuffer[:len(lexer.zzBuffer)])
lexer.zzBuffer = newBuffer
lexer.zzEndRead += lexer.zzFinalHighSurrogate
lexer.zzFinalHighSurrogate = 0
}
/* fill the buffer with new input */
requested := len(lexer.zzBuffer) - lexer.zzEndRead
var numRead = 0
for i := lexer.zzEndRead; i < lexer.zzEndRead+requested; i++ {
r, _, err := lexer.zzReader.ReadRune()
if err == io.EOF {
if numRead == 0 {
numRead = -1
}
break
} else if err != nil {
return false, err
} else {
numRead++
lexer.zzBuffer[i] = r
}
}
/* not supposed to occur according to specification of java.io.Reader */
if numRead == 0 {
panic("Reader returned 0 characters. See JFlex examples for workaround.")
}
if numRead > 0 {
lexer.zzEndRead += numRead
/* If numRead == requested, we might have requested to few chars to
encode a full Unicode character. We assume that a Reader would
otherwise never return half characters. */
if numRead == requested {
if utf8.ValidRune(lexer.zzBuffer[lexer.zzEndRead-1]) {
lexer.zzEndRead--
lexer.zzFinalHighSurrogate = 1
}
}
/* potentially more input available */
return false, nil
}
/* numRead < 0 ==> end of stream */
return true, nil
}
/**
* Closes the input stream.
*/
func (lexer *Lexer) yyclose() error {
lexer.zzAtEOF = true /* indicate end of file */
lexer.zzEndRead = lexer.zzStartRead /* invalidate buffer */
if lexer.zzReader != nil {
if c, ok := lexer.zzReader.(io.Closer); ok {
return c.Close()
}
}
return nil
}
/**
* Resets the scanner to read from a new input stream.
* Does not close the old reader.
*
* All internal variables are reset, the old input stream
* <b>cannot</b> be reused (internal buffer is discarded and lost).
* Lexical state is set to <tt>ZZ_INITIAL</tt>.
*
* Internal scan buffer is resized down to its initial length, if it has grown.
*
* @param reader the new input stream
*/
func (lexer *Lexer) yyreset(reader io.RuneReader) {
lexer.zzReader = reader
lexer.zzAtBOL = true
lexer.zzAtEOF = false
lexer.zzEOFDone = false
lexer.zzEndRead = 0
lexer.zzStartRead = 0
lexer.zzCurrentPos = 0
lexer.zzMarkedPos = 0
lexer.zzFinalHighSurrogate = 0
lexer.yyline = 0
lexer.yychar = 0
lexer.yycolumn = 0
lexer.zzLexicalState = YYINITIAL
if len(lexer.zzBuffer) > ZZ_BUFFERSIZE {
lexer.zzBuffer = make([]rune, ZZ_BUFFERSIZE)
}
}
/**
* Returns the current lexical state.
*/
func (lexer *Lexer) yystate() int {
return lexer.zzLexicalState
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
func (lexer *Lexer) yybegin(newState int) {
lexer.zzLexicalState = newState
}
/**
* Returns the text matched by the current regular expression.
*/
func (lexer *Lexer) yytext() string {
return string(lexer.zzBuffer[lexer.zzStartRead:lexer.zzMarkedPos])
}
/**
* Returns the character at Position <tt>pos</tt> from the
* matched text.
*
* It is equivalent to yytext().charAt(pos), but faster
*
* @param pos the Position of the character to fetch.
* A Value from 0 to yylength()-1.
*
* @return the character at Position pos
*/
func (lexer *Lexer) yycharat(pos int) rune {
return lexer.zzBuffer[lexer.zzStartRead+pos]
}
/**
* Returns the length of the matched text region.
*/
func (lexer *Lexer) yylength() int {
return lexer.zzMarkedPos - lexer.zzStartRead
}
/**
* Reports an error that occured while scanning.
*
* In a wellformed scanner (no or only correct usage of
* yypushback(int) and a match-all fallback rule) this method
* will only be called with things that "Can't Possibly Happen".
* If this method is called, something is seriously wrong
* (e.g. a JFlex bug producing a faulty scanner etc.).
*
* Usual syntax/scanner level error handling should be done
* in error fallback rules.
*
* @param errorCode the code of the errormessage to display
*/
func (lexer *Lexer) zzScanError(errorCode int) {
var message string
message = ZZ_ERROR_MSG[errorCode]
if message == "" {
message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR]
}
panic(message)
}
/**
* Pushes the specified amount of characters back into the input stream.
*
* They will be read again by then next call of the scanning method
*
* @param number the number of characters to be read again.
* This number must not be greater than yylength()!
*/
func (lexer *Lexer) yypushback(number int) {
if number > lexer.yylength() {
lexer.zzScanError(ZZ_PUSHBACK_2BIG)
}
lexer.zzMarkedPos -= number
}
/**
* 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
*/
func (lexer *Lexer) Yylex() (*LVal, error) {
var zzInput rune
var zzAction, zzCurrentPosL, zzMarkedPosL int
// cached fields:
zzEndReadL := lexer.zzEndRead
zzBufferL := lexer.zzBuffer
zzCMapL := ZZ_CMAP
zzTransL := ZZ_TRANS
zzRowMapL := ZZ_ROWMAP
zzAttrL := ZZ_ATTRIBUTE
for {
zzMarkedPosL = lexer.zzMarkedPos
lexer.yychar += zzMarkedPosL - lexer.zzStartRead
zzR := false
var zzCh rune
var zzCharCount int
zzCurrentPosL = lexer.zzStartRead
for zzCurrentPosL < zzMarkedPosL {
zzCh = zzBufferL[zzCurrentPosL]
zzCharCount = utf8.RuneLen(zzCh)
switch zzCh {
case '\u000B', '\u000C', '\u0085', '\u2028', '\u2029':
lexer.yyline++
lexer.yycolumn = 0
zzR = false
case '\r':
lexer.yyline++
lexer.yycolumn = 0
zzR = true
case '\n':
if zzR {
zzR = false
} else {
lexer.yyline++
lexer.yycolumn = 0
}
default:
zzR = false
lexer.yycolumn += zzCharCount
}
zzCurrentPosL += zzCharCount
}
if zzR {
// peek one character ahead if it is \n (if we have counted one line too much)
var zzPeek bool
if zzMarkedPosL < zzEndReadL {
zzPeek = zzBufferL[zzMarkedPosL] == '\n'
} else if lexer.zzAtEOF {
zzPeek = false
} else {
eof, err := lexer.zzRefill()
if err != nil {
return nil, err
}
zzEndReadL = lexer.zzEndRead
zzMarkedPosL = lexer.zzMarkedPos
zzBufferL = lexer.zzBuffer
if eof {
zzPeek = false
} else {
zzPeek = zzBufferL[zzMarkedPosL] == '\n'
}
}
if zzPeek {
lexer.yyline--
}
}
zzAction = -1
zzCurrentPosL = zzMarkedPosL
lexer.zzCurrentPos = zzMarkedPosL
lexer.zzStartRead = zzMarkedPosL
lexer.zzState = ZZ_LEXSTATE[lexer.zzLexicalState]
// set up zzAction for empty match case:
zzAttributes := zzAttrL[lexer.zzState]
if (zzAttributes & 1) == 1 {
zzAction = lexer.zzState
}
{
for true {
if zzCurrentPosL < zzEndReadL {
zzInput = zzBufferL[zzCurrentPosL]
zzCurrentPosL += 1 //utf8.RuneLen(zzInput)
} else if lexer.zzAtEOF {
zzInput = YYEOF
goto zzForAction
} else {
// store back cached positions
lexer.zzCurrentPos = zzCurrentPosL
lexer.zzMarkedPos = zzMarkedPosL
eof, err := lexer.zzRefill()
if err != nil {
return nil, err
}
// get translated positions and possibly new buffer
zzCurrentPosL = lexer.zzCurrentPos
zzMarkedPosL = lexer.zzMarkedPos
zzBufferL = lexer.zzBuffer
zzEndReadL = lexer.zzEndRead
if eof {
zzInput = YYEOF
goto zzForAction
} else {
zzInput = zzBufferL[zzCurrentPosL]
zzCurrentPosL += 1 //utf8.RuneLen(zzInput)
}
}
zzNext := zzTransL[zzRowMapL[lexer.zzState]+int(zzCMapL[zzInput])]
if zzNext == -1 {
goto zzForAction
}
lexer.zzState = zzNext
zzAttributes = zzAttrL[lexer.zzState]
if (zzAttributes & 1) == 1 {
zzAction = lexer.zzState
zzMarkedPosL = zzCurrentPosL
if (zzAttributes & 8) == 8 {
goto zzForAction
}
}
}
}
zzForAction:
// store back cached Position
lexer.zzMarkedPos = zzMarkedPosL
if zzInput == YYEOF && lexer.zzStartRead == lexer.zzCurrentPos {
lexer.zzAtEOF = true
switch lexer.zzLexicalState {
case xc:
{
lexer.debug("<xc><<EOF>>")
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated /* comment")
}
case 105:
case xq:
{
lexer.debug("<xq><<EOF>>")
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated quoted string")
}
fallthrough
case 106:
case xdq:
{
lexer.debug("<xdq><<EOF>>")
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated quoted identifier")
}
fallthrough
case 107:
case xbin:
{
lexer.debug("<xbin><<EOF>>")
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated binary string literal")
}
fallthrough
case 108:
case xhex:
{
lexer.debug("<xhex><<EOF>>")
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated hexadecimal integer")
}
fallthrough
case 109:
case xq2:
{
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated q2 string")
}
fallthrough
case 110:
case xq2_2:
{
lexer.yybegin(YYINITIAL)
lexer.yyerror("unterminated q2 string")
}
fallthrough
case 111:
default:
return nil, nil
}
} else {
var action int
if zzAction < 0 {
action = zzAction
} else {
action = ZZ_ACTION[zzAction]
}
switch action {
case 1:
{
lexer.debug("{other}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 44:
case 2:
{
lexer.debug("{xq_start}")
lexer.yybegin(xq)
lexer.ltstr = ""
}
fallthrough
case 45:
case 3:
{
lexer.debug("{xdq_start}")
lexer.yybegin(xdq)
lexer.ltstr = ""
lexer.ltstr += lexer.yytext()
}
fallthrough
case 46:
case 4:
{
lexer.debug("{self} | {op_chars}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 47:
case 5:
{
lexer.debug("{identifier}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 48:
case 6:
{
lexer.debug("{integer}")
return newLVal(lexer.yytext(), INT), nil
}
fallthrough
case 49:
case 7:
{
lexer.debug("{whitespace} | {comment} | {c_line_comment}")
return newLVal(lexer.yytext(), WHITESPACE_OR_COMMENT), nil
}
fallthrough
case 50:
case 8:
{
lexer.debug("<xc>{xc_inside}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 51:
case 9:
{
lexer.debug("<xc>[\\/] | <xc>[\\*]")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 52:
case 10:
{
lexer.debug("<xq>{xq_inside}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 53:
case 11:
{
lexer.debug("<xq>{xq_stop}")
lexer.yybegin(YYINITIAL)
return newLVal(lexer.ltstr, STRING), nil
}
fallthrough
case 54:
case 12:
{
lexer.debug("<xdq>{xdq_inside}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 55:
case 13:
{
lexer.debug("<xdq>{xdq_stop}")
lexer.yybegin(YYINITIAL)
lexer.ltstr += lexer.yytext()
return newLVal(lexer.ltstr, NORMAL), nil
}
fallthrough
case 56:
case 14:
{
lexer.debug("<xbin>{xbin_inside}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 57:
case 15:
{
lexer.debug("<xbin>{xbin_stop}")
lexer.yybegin(YYINITIAL)
lexer.ltstr += lexer.yytext()
return newLVal(lexer.ltstr, NORMAL), nil
}
fallthrough
case 58:
case 16:
{
lexer.debug("<xhex>{xhex_inside}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 59:
case 17:
{
lexer.debug("<xhex>{xhex_stop}")
lexer.yybegin(YYINITIAL)
lexer.ltstr += lexer.yytext()
return newLVal(lexer.ltstr, NORMAL), nil
}
fallthrough
case 60:
case 18:
{
lexer.ltstr += lexer.yytext()
}
fallthrough
case 61:
case 19:
{
lexer.yybegin(xq2_2)
}
fallthrough
case 62:
case 20:
{
lexer.ltstr += "]"
lexer.ltstr += lexer.yytext()
lexer.yybegin(xq2)
}
fallthrough
case 63:
case 21:
{
lexer.yybegin(YYINITIAL)
return newLVal(lexer.ltstr, STRING), nil
}
fallthrough
case 64:
case 22:
{
lexer.ltstr += "]"
lexer.yybegin(xq2_2)
}
fallthrough
case 65:
case 23:
{
lexer.debug("{xc_start}")
lexer.yybegin(xc)
lexer.ltstr = lexer.yytext()
}
fallthrough
case 66:
case 24:
{
lexer.debug("{xbin_start}")
lexer.yybegin(xbin)
lexer.ltstr = ""
lexer.ltstr += lexer.yytext()
}
fallthrough
case 67:
case 25:
{
lexer.debug("{xhex_start}")
lexer.yybegin(xhex)
lexer.ltstr = ""
lexer.ltstr += lexer.yytext()
}
fallthrough
case 68:
case 26:
{
lexer.debug("{decimal}")
return newLVal(lexer.yytext(), DECIMAL), nil
}
fallthrough
case 69:
case 27:
{
lexer.debug("{real}")
return newLVal(lexer.yytext(), DOUBLE), nil
}
fallthrough
case 70:
case 28:
{
lexer.debug("{assign}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 71:
case 29:
{
lexer.debug("{selstar}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 72:
case 30:
{
lexer.debug("{boundary}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 73:
case 31:
{
lexer.debug("<xc>{xc_start}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 74:
case 32:
{
lexer.debug("<xc>{xc_stop}")
lexer.yybegin(YYINITIAL)
lexer.ltstr += lexer.yytext()
return newLVal(lexer.ltstr, WHITESPACE_OR_COMMENT), nil
}
fallthrough
case 75:
case 33:
{
lexer.debug("<xq>{xq_double}")
lexer.ltstr += "\\'"
}
fallthrough
case 76:
case 34:
{ // keep original string
lexer.debug("<xdq>{xdq_double}")
lexer.ltstr += lexer.yytext()
}
fallthrough
case 77:
case 35:
{
lexer.yybegin(xq2)
lexer.ltstr = ""
}
fallthrough
case 78:
case 36:
{
lexer.debug("{integer_with_boundary}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 79:
case 37:
{
lexer.debug("{hex_integer}")
return newLVal(lexer.yytext(), HEX_INT), nil
}
fallthrough
case 80:
case 38:
{
lexer.debug("<xq>{xq_cat}")
}
fallthrough
case 81:
case 39:
{ /* ignore */
lexer.debug("<xbin>{xbin_cat}")
}
fallthrough
case 82:
case 40:
{
lexer.debug("<xhex>{xhex_cat}")
}
fallthrough
case 83:
case 41:
{
lexer.debug("{null}")
return newLVal("null", NULL), nil
}
fallthrough
case 84:
case 42:
{
lexer.debug("{is_null}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 85:
case 43:
{
lexer.debug("{not_null}")
return newLVal(lexer.yytext(), NORMAL), nil
}
fallthrough
case 86:
default:
lexer.zzScanError(ZZ_NO_MATCH)
}
}
}
}
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