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// Copyright (c) 2012-2022 The ANTLR Project. All rights reserved.
// Use of this file is governed by the BSD 3-clause license that
// can be found in the LICENSE.txt file in the project root.
package antlr
/*
LexerB is a lexer for testing purpose.
This file is generated from this grammer.
lexer grammar LexerB;
ID : 'a'..'z'+;
INT : '0'..'9'+;
SEMI : ';';
ASSIGN : '=';
PLUS : '+';
MULT : '*';
WS : ' '+;
*/
import (
"fmt"
"sync"
"unicode"
)
// Suppress unused import error
var _ = fmt.Printf
var _ = sync.Once{}
var _ = unicode.IsLetter
type LexerB struct {
*BaseLexer
channelNames []string
modeNames []string
// TODO: EOF string
}
var lexerbLexerStaticData struct {
once sync.Once
serializedATN []int32
channelNames []string
modeNames []string
literalNames []string
symbolicNames []string
ruleNames []string
predictionContextCache *PredictionContextCache
atn *ATN
decisionToDFA []*DFA
}
func lexerbLexerInit() {
staticData := &lexerbLexerStaticData
staticData.channelNames = []string{
"DEFAULT_TOKEN_CHANNEL", "HIDDEN",
}
staticData.modeNames = []string{
"DEFAULT_MODE",
}
staticData.literalNames = []string{
"", "", "", "';'", "'='", "'+'", "'*'",
}
staticData.symbolicNames = []string{
"", "ID", "INT", "SEMI", "ASSIGN", "PLUS", "MULT", "WS",
}
staticData.ruleNames = []string{
"ID", "INT", "SEMI", "ASSIGN", "PLUS", "MULT", "WS",
}
staticData.predictionContextCache = NewPredictionContextCache()
staticData.serializedATN = []int32{
4, 0, 7, 38, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 1, 0, 4, 0, 17, 8, 0, 11, 0, 12, 0, 18,
1, 1, 4, 1, 22, 8, 1, 11, 1, 12, 1, 23, 1, 2, 1, 2, 1, 3, 1, 3, 1, 4, 1,
4, 1, 5, 1, 5, 1, 6, 4, 6, 35, 8, 6, 11, 6, 12, 6, 36, 0, 0, 7, 1, 1, 3,
2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 1, 0, 0, 40, 0, 1, 1, 0, 0, 0, 0, 3,
1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11,
1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 1, 16, 1, 0, 0, 0, 3, 21, 1, 0, 0, 0, 5,
25, 1, 0, 0, 0, 7, 27, 1, 0, 0, 0, 9, 29, 1, 0, 0, 0, 11, 31, 1, 0, 0,
0, 13, 34, 1, 0, 0, 0, 15, 17, 2, 97, 122, 0, 16, 15, 1, 0, 0, 0, 17, 18,
1, 0, 0, 0, 18, 16, 1, 0, 0, 0, 18, 19, 1, 0, 0, 0, 19, 2, 1, 0, 0, 0,
20, 22, 2, 48, 57, 0, 21, 20, 1, 0, 0, 0, 22, 23, 1, 0, 0, 0, 23, 21, 1,
0, 0, 0, 23, 24, 1, 0, 0, 0, 24, 4, 1, 0, 0, 0, 25, 26, 5, 59, 0, 0, 26,
6, 1, 0, 0, 0, 27, 28, 5, 61, 0, 0, 28, 8, 1, 0, 0, 0, 29, 30, 5, 43, 0,
0, 30, 10, 1, 0, 0, 0, 31, 32, 5, 42, 0, 0, 32, 12, 1, 0, 0, 0, 33, 35,
5, 32, 0, 0, 34, 33, 1, 0, 0, 0, 35, 36, 1, 0, 0, 0, 36, 34, 1, 0, 0, 0,
36, 37, 1, 0, 0, 0, 37, 14, 1, 0, 0, 0, 4, 0, 18, 23, 36, 0,
}
deserializer := NewATNDeserializer(nil)
staticData.atn = deserializer.Deserialize(staticData.serializedATN)
atn := staticData.atn
staticData.decisionToDFA = make([]*DFA, len(atn.DecisionToState))
decisionToDFA := staticData.decisionToDFA
for index, state := range atn.DecisionToState {
decisionToDFA[index] = NewDFA(state, index)
}
}
// LexerBInit initializes any static state used to implement LexerB. By default the
// static state used to implement the lexer is lazily initialized during the first call to
// NewLexerB(). You can call this function if you wish to initialize the static state ahead
// of time.
func LexerBInit() {
staticData := &lexerbLexerStaticData
staticData.once.Do(lexerbLexerInit)
}
// NewLexerB produces a new lexer instance for the optional input antlr.CharStream.
func NewLexerB(input CharStream) *LexerB {
LexerBInit()
l := new(LexerB)
l.BaseLexer = NewBaseLexer(input)
staticData := &lexerbLexerStaticData
l.Interpreter = NewLexerATNSimulator(l, staticData.atn, staticData.decisionToDFA, staticData.predictionContextCache)
l.channelNames = staticData.channelNames
l.modeNames = staticData.modeNames
l.RuleNames = staticData.ruleNames
l.LiteralNames = staticData.literalNames
l.SymbolicNames = staticData.symbolicNames
l.GrammarFileName = "LexerB.g4"
// TODO: l.EOF = antlr.TokenEOF
return l
}
// LexerB tokens.
const (
LexerBID = 1
LexerBINT = 2
LexerBSEMI = 3
LexerBASSIGN = 4
LexerBPLUS = 5
LexerBMULT = 6
LexerBWS = 7
)
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