Compiler Compiler based on CSharp
Supports RE to NFA, e-NFA, NFA to DFA, DFA Minimization, Lexical Analyzer Generator, SLR, LALR(from LR(1)), LALR(from LR(0)), LR(1) Parser Generator.
If you want to use my code, use ParserGenerator.cs and ScannerGenerator.cs in the top folder.
Graphviz is required to use the graph visualization feature of Regular Expression.
Binary: https://github.com/rollrat/compiler-compiler/releases/download/1.3/Release.zip
Dependency(GraphViz): https://graphviz.gitlab.io/_pages/Download/Download_windows.html
Json Lexer/Parser Generator: https://github.com/rollrat/compiler-compiler/tree/master/CC/CC/Program.cs
C++ Version: https://github.com/rollrat/jsonhead
C# Version: https://github.com/rollrat/compiler-compiler/tree/master/CC/JsonParser
Javascript Lexer/Parser Generator: https://github.com/rollrat/compiler-compiler/tree/master/CC/JavascriptParser
[0-9]+(\.[0-9]+)?([Ee][\+\-]?[0-9]+)?
(100+1+|01)+
https://www.acmicpc.net/problem/1013
You cannot use this just to test regex.
A tool for analyzing regular expressions using (,),+,*,?,|,[,],^,. as tokens and generating Scanner tables.
var sg = new ScannerGenerator();
sg.PushRule("", "[\\r\\n ]");
sg.PushRule("if", "if");
sg.PushRule("for", "for");
sg.PushRule("else", "else");
sg.PushRule("id", "[a-z][a-z0-9]*");
sg.PushRule("num", "[0-9]+");
sg.Generate();
sg.PrintDiagram();
var scanner = sg.CreateScannerInstance();
scanner.AllocateTarget("+/a1321 if else 0415abse+9999");
while (scanner.Valid())
{
var ss = scanner.Next();
Console.WriteLine($"{ss.Item1}, {ss.Item2}");
}plus, +
id, a1321 // Ignore '/'
if, if
else, else
num, 0415
id, abse
plus, +
num, 9999
This source code includes the SLR, LR(1), and LALR parser generators.
var gen = new ParserGenerator();
// Non-Terminals
var exp = gen.CreateNewProduction("exp", false);
var term = gen.CreateNewProduction("term", false);
var factor = gen.CreateNewProduction("factor", false);
// Terminals
var plus = gen.CreateNewProduction("plus");
var minus = gen.CreateNewProduction("minus");
var multiple = gen.CreateNewProduction("multiple");
var divide = gen.CreateNewProduction("divide");
var id = gen.CreateNewProduction("id");
var op_open = gen.CreateNewProduction("op_open");
var op_close = gen.CreateNewProduction("op_close");
exp |= exp + plus + term;
exp |= term;
term |= term + multiple + factor;
term |= factor;
factor |= op_open + exp + op_close;
factor |= id;
gen.PushStarts(exp);
gen.Generate();
gen.PrintStates();I0 => SHIFT{(exp,I1),(term,I2),(factor,I3),(op_open,I4),(id,I5)}
I1 => SHIFT{(plus,I6)}
REDUCE{($,accept,0)}
I2 => SHIFT{(multiple,I7)}
REDUCE{(plus,exp,1),(op_close,exp,1),($,exp,1)}
I3 => REDUCE{(multiple,term,1),(plus,term,1),(op_close,term,1),($,term,1)}
I4 => SHIFT{(exp,I8),(term,I2),(factor,I3),(op_open,I4),(id,I5)}
I5 => REDUCE{(multiple,factor,1),(plus,factor,1),(op_close,factor,1),($,factor,1)}
I6 => SHIFT{(term,I9),(factor,I3),(op_open,I4),(id,I5)}
I7 => SHIFT{(factor,I10),(op_open,I4),(id,I5)}
I8 => SHIFT{(op_close,I11),(plus,I6)}
I9 => SHIFT{(multiple,I7)}
REDUCE{(plus,exp,0),(op_close,exp,0),($,exp,0)}
I10 => REDUCE{(multiple,term,0),(plus,term,0),(op_close,term,0),($,term,0)}
I11 => REDUCE{(multiple,factor,0),(plus,factor,0),(op_close,factor,0),($,factor,0)}
var gen = new ParserGenerator();
// Non-Terminals
var exp = gen.CreateNewProduction("exp", false);
var term = gen.CreateNewProduction("term", false);
var factor = gen.CreateNewProduction("factor", false);
var func = gen.CreateNewProduction("func", false);
var arguments = gen.CreateNewProduction("args", false);
var args_left = gen.CreateNewProduction("args_left", false);
// Terminals
var plus = gen.CreateNewProduction("plus"); // +
var minus = gen.CreateNewProduction("minus"); // -
var multiple = gen.CreateNewProduction("multiple"); // *
var divide = gen.CreateNewProduction("divide"); // /
var id = gen.CreateNewProduction("id"); // [_$a-zA-Z][_$a-zA-Z0-9]*
var op_open = gen.CreateNewProduction("op_open"); // (
var op_close = gen.CreateNewProduction("op_close"); // )
var num = gen.CreateNewProduction("num"); // [0-9]+
var split = gen.CreateNewProduction("split"); // ,
exp |= exp + plus + term;
exp |= exp + minus + term;
exp |= term;
term |= term + multiple + factor;
term |= term + divide + factor;
term |= factor;
factor |= op_open + exp + op_close;
factor |= num;
factor |= id;
factor |= func;
func |= id + op_open + arguments + op_close;
arguments |= args_left + id;
arguments |= ParserGenerator.EmptyString;
args_left |= args_left + id + split;
args_left |= ParserGenerator.EmptyString;
gen.PushStarts(exp);
gen.GenerateLR1();
gen.PrintStates();
var slr = gen.CreateShiftReduceParserInstance();
// 2*4+5$
Action<string, string> insert = (string x, string y) =>
{
slr.Insert(x, y);
while (slr.Reduce())
{
var l = slr.LatestReduce();
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Produnction)));
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Contents)));
slr.Insert(x, y);
}
};
var sg2 = new ScannerGenerator();
sg2.PushRule("", "[\\r\\n ]");
sg2.PushRule("plus", "\\+");
sg2.PushRule("minus", "-");
sg2.PushRule("multiple", "\\*");
sg2.PushRule("divide", "\\/");
sg2.PushRule("op_open", "\\(");
sg2.PushRule("op_close", "\\)");
sg2.PushRule("split", ",");
sg2.PushRule("id", "[a-z][a-z0-9]*");
sg2.PushRule("num", "[0-9]+");
sg2.Generate();
sg2.CreateScannerInstance();
var scanner2 = sg2.CreateScannerInstance();
//scanner2.AllocateTarget("2+6*(6+4*7-2)+sin(a,b,c,d)+cos()*pi");
scanner2.AllocateTarget("2+6*(6+4*7-2)+sin(a,b,c,d)+cos()*pi");
while (scanner2.Valid())
{
var ss = scanner2.Next();
insert(ss.Item1,ss.Item2);
}
insert("$", "$");
-----I0-----
S' -> 路exp $
exp -> 路exp plus term $/plus/minus
exp -> 路exp minus term $/plus/minus
exp -> 路term $/plus/minus
term -> 路term multiple factor $/multiple/divide
term -> 路term divide factor $/multiple/divide
term -> 路factor $/multiple/divide
factor -> 路op_open exp op_close $
factor -> 路num $
factor -> 路id $
factor -> 路func $
func -> 路id op_open args op_close $
func -> 路id op_open op_close $
-----I1-----
S' -> exp 路 $
exp -> exp 路plus term $/plus/minus
exp -> exp 路minus term $/plus/minus
-----I2-----
exp -> term 路 $/plus/minus
term -> term 路multiple factor $/multiple/divide
term -> term 路divide factor $/multiple/divide
-----I3-----
term -> factor 路 $/multiple/divide
-----I4-----
factor -> op_open 路exp op_close $
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I5-----
factor -> num 路 $
-----I6-----
factor -> id 路 $
func -> id 路op_open args op_close $
func -> id 路op_open op_close $
-----I7-----
factor -> func 路 $
-----I8-----
exp -> exp plus 路term $/plus/minus
term -> 路term multiple factor $/plus/minus/multiple/divide
term -> 路term divide factor $/plus/minus/multiple/divide
term -> 路factor $/plus/minus/multiple/divide
factor -> 路op_open exp op_close $/plus/minus
factor -> 路num $/plus/minus
factor -> 路id $/plus/minus
factor -> 路func $/plus/minus
func -> 路id op_open args op_close $/plus/minus
func -> 路id op_open op_close $/plus/minus
-----I9-----
exp -> exp minus 路term $/plus/minus
term -> 路term multiple factor $/plus/minus/multiple/divide
term -> 路term divide factor $/plus/minus/multiple/divide
term -> 路factor $/plus/minus/multiple/divide
factor -> 路op_open exp op_close $/plus/minus
factor -> 路num $/plus/minus
factor -> 路id $/plus/minus
factor -> 路func $/plus/minus
func -> 路id op_open args op_close $/plus/minus
func -> 路id op_open op_close $/plus/minus
-----I10-----
term -> term multiple 路factor $/multiple/divide
factor -> 路op_open exp op_close $/multiple/divide
factor -> 路num $/multiple/divide
factor -> 路id $/multiple/divide
factor -> 路func $/multiple/divide
func -> 路id op_open args op_close $/multiple/divide
func -> 路id op_open op_close $/multiple/divide
-----I11-----
term -> term divide 路factor $/multiple/divide
factor -> 路op_open exp op_close $/multiple/divide
factor -> 路num $/multiple/divide
factor -> 路id $/multiple/divide
factor -> 路func $/multiple/divide
func -> 路id op_open args op_close $/multiple/divide
func -> 路id op_open op_close $/multiple/divide
-----I12-----
factor -> op_open exp 路op_close $
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I13-----
exp -> term 路 op_close/plus/minus
term -> term 路multiple factor op_close/multiple/divide
term -> term 路divide factor op_close/multiple/divide
-----I14-----
term -> factor 路 op_close/multiple/divide
-----I15-----
factor -> op_open 路exp op_close op_close
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I16-----
factor -> num 路 op_close
-----I17-----
factor -> id 路 op_close
func -> id 路op_open args op_close op_close
func -> id 路op_open op_close op_close
-----I18-----
factor -> func 路 op_close
-----I19-----
func -> id op_open 路args op_close $
func -> id op_open 路op_close $
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I20-----
exp -> exp plus term 路 $/plus/minus
term -> term 路multiple factor $/plus/minus/multiple/divide
term -> term 路divide factor $/plus/minus/multiple/divide
-----I21-----
term -> factor 路 $/plus/minus/multiple/divide
-----I22-----
factor -> op_open 路exp op_close $/plus/minus
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I23-----
factor -> num 路 $/plus/minus
-----I24-----
factor -> id 路 $/plus/minus
func -> id 路op_open args op_close $/plus/minus
func -> id 路op_open op_close $/plus/minus
-----I25-----
factor -> func 路 $/plus/minus
-----I26-----
exp -> exp minus term 路 $/plus/minus
term -> term 路multiple factor $/plus/minus/multiple/divide
term -> term 路divide factor $/plus/minus/multiple/divide
-----I27-----
term -> term multiple factor 路 $/multiple/divide
-----I28-----
factor -> op_open 路exp op_close $/multiple/divide
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I29-----
factor -> num 路 $/multiple/divide
-----I30-----
factor -> id 路 $/multiple/divide
func -> id 路op_open args op_close $/multiple/divide
func -> id 路op_open op_close $/multiple/divide
-----I31-----
factor -> func 路 $/multiple/divide
-----I32-----
term -> term divide factor 路 $/multiple/divide
-----I33-----
factor -> op_open exp op_close 路 $
-----I34-----
exp -> exp plus 路term op_close/plus/minus
term -> 路term multiple factor op_close/plus/minus/multiple/divide
term -> 路term divide factor op_close/plus/minus/multiple/divide
term -> 路factor op_close/plus/minus/multiple/divide
factor -> 路op_open exp op_close op_close/plus/minus
factor -> 路num op_close/plus/minus
factor -> 路id op_close/plus/minus
factor -> 路func op_close/plus/minus
func -> 路id op_open args op_close op_close/plus/minus
func -> 路id op_open op_close op_close/plus/minus
-----I35-----
exp -> exp minus 路term op_close/plus/minus
term -> 路term multiple factor op_close/plus/minus/multiple/divide
term -> 路term divide factor op_close/plus/minus/multiple/divide
term -> 路factor op_close/plus/minus/multiple/divide
factor -> 路op_open exp op_close op_close/plus/minus
factor -> 路num op_close/plus/minus
factor -> 路id op_close/plus/minus
factor -> 路func op_close/plus/minus
func -> 路id op_open args op_close op_close/plus/minus
func -> 路id op_open op_close op_close/plus/minus
-----I36-----
term -> term multiple 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close/multiple/divide
factor -> 路num op_close/multiple/divide
factor -> 路id op_close/multiple/divide
factor -> 路func op_close/multiple/divide
func -> 路id op_open args op_close op_close/multiple/divide
func -> 路id op_open op_close op_close/multiple/divide
-----I37-----
term -> term divide 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close/multiple/divide
factor -> 路num op_close/multiple/divide
factor -> 路id op_close/multiple/divide
factor -> 路func op_close/multiple/divide
func -> 路id op_open args op_close op_close/multiple/divide
func -> 路id op_open op_close op_close/multiple/divide
-----I38-----
factor -> op_open exp 路op_close op_close
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I39-----
func -> id op_open 路args op_close op_close
func -> id op_open 路op_close op_close
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I40-----
func -> id op_open args 路op_close $
-----I41-----
func -> id op_open op_close 路 $
-----I42-----
args -> args_left 路id op_close
args_left -> args_left 路id split id
-----I43-----
args -> id 路 op_close
args_left -> id 路split id
-----I44-----
term -> term multiple 路factor $/plus/minus/multiple/divide
factor -> 路op_open exp op_close $/plus/minus/multiple/divide
factor -> 路num $/plus/minus/multiple/divide
factor -> 路id $/plus/minus/multiple/divide
factor -> 路func $/plus/minus/multiple/divide
func -> 路id op_open args op_close $/plus/minus/multiple/divide
func -> 路id op_open op_close $/plus/minus/multiple/divide
-----I45-----
term -> term divide 路factor $/plus/minus/multiple/divide
factor -> 路op_open exp op_close $/plus/minus/multiple/divide
factor -> 路num $/plus/minus/multiple/divide
factor -> 路id $/plus/minus/multiple/divide
factor -> 路func $/plus/minus/multiple/divide
func -> 路id op_open args op_close $/plus/minus/multiple/divide
func -> 路id op_open op_close $/plus/minus/multiple/divide
-----I46-----
factor -> op_open exp 路op_close $/plus/minus
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I47-----
func -> id op_open 路args op_close $/plus/minus
func -> id op_open 路op_close $/plus/minus
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I48-----
factor -> op_open exp 路op_close $/multiple/divide
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I49-----
func -> id op_open 路args op_close $/multiple/divide
func -> id op_open 路op_close $/multiple/divide
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I50-----
exp -> exp plus term 路 op_close/plus/minus
term -> term 路multiple factor op_close/plus/minus/multiple/divide
term -> term 路divide factor op_close/plus/minus/multiple/divide
-----I51-----
term -> factor 路 op_close/plus/minus/multiple/divide
-----I52-----
factor -> op_open 路exp op_close op_close/plus/minus
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I53-----
factor -> num 路 op_close/plus/minus
-----I54-----
factor -> id 路 op_close/plus/minus
func -> id 路op_open args op_close op_close/plus/minus
func -> id 路op_open op_close op_close/plus/minus
-----I55-----
factor -> func 路 op_close/plus/minus
-----I56-----
exp -> exp minus term 路 op_close/plus/minus
term -> term 路multiple factor op_close/plus/minus/multiple/divide
term -> term 路divide factor op_close/plus/minus/multiple/divide
-----I57-----
term -> term multiple factor 路 op_close/multiple/divide
-----I58-----
factor -> op_open 路exp op_close op_close/multiple/divide
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I59-----
factor -> num 路 op_close/multiple/divide
-----I60-----
factor -> id 路 op_close/multiple/divide
func -> id 路op_open args op_close op_close/multiple/divide
func -> id 路op_open op_close op_close/multiple/divide
-----I61-----
factor -> func 路 op_close/multiple/divide
-----I62-----
term -> term divide factor 路 op_close/multiple/divide
-----I63-----
factor -> op_open exp op_close 路 op_close
-----I64-----
func -> id op_open args 路op_close op_close
-----I65-----
func -> id op_open op_close 路 op_close
-----I66-----
func -> id op_open args op_close 路 $
-----I67-----
args -> args_left id 路 op_close
args_left -> args_left id 路split id
-----I68-----
args_left -> id split 路 id
-----I69-----
term -> term multiple factor 路 $/plus/minus/multiple/divide
-----I70-----
factor -> op_open 路exp op_close $/plus/minus/multiple/divide
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I71-----
factor -> num 路 $/plus/minus/multiple/divide
-----I72-----
factor -> id 路 $/plus/minus/multiple/divide
func -> id 路op_open args op_close $/plus/minus/multiple/divide
func -> id 路op_open op_close $/plus/minus/multiple/divide
-----I73-----
factor -> func 路 $/plus/minus/multiple/divide
-----I74-----
term -> term divide factor 路 $/plus/minus/multiple/divide
-----I75-----
factor -> op_open exp op_close 路 $/plus/minus
-----I76-----
func -> id op_open args 路op_close $/plus/minus
-----I77-----
func -> id op_open op_close 路 $/plus/minus
-----I78-----
factor -> op_open exp op_close 路 $/multiple/divide
-----I79-----
func -> id op_open args 路op_close $/multiple/divide
-----I80-----
func -> id op_open op_close 路 $/multiple/divide
-----I81-----
term -> term multiple 路factor op_close/plus/minus/multiple/divide
factor -> 路op_open exp op_close op_close/plus/minus/multiple/divide
factor -> 路num op_close/plus/minus/multiple/divide
factor -> 路id op_close/plus/minus/multiple/divide
factor -> 路func op_close/plus/minus/multiple/divide
func -> 路id op_open args op_close op_close/plus/minus/multiple/divide
func -> 路id op_open op_close op_close/plus/minus/multiple/divide
-----I82-----
term -> term divide 路factor op_close/plus/minus/multiple/divide
factor -> 路op_open exp op_close op_close/plus/minus/multiple/divide
factor -> 路num op_close/plus/minus/multiple/divide
factor -> 路id op_close/plus/minus/multiple/divide
factor -> 路func op_close/plus/minus/multiple/divide
func -> 路id op_open args op_close op_close/plus/minus/multiple/divide
func -> 路id op_open op_close op_close/plus/minus/multiple/divide
-----I83-----
factor -> op_open exp 路op_close op_close/plus/minus
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I84-----
func -> id op_open 路args op_close op_close/plus/minus
func -> id op_open 路op_close op_close/plus/minus
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I85-----
factor -> op_open exp 路op_close op_close/multiple/divide
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I86-----
func -> id op_open 路args op_close op_close/multiple/divide
func -> id op_open 路op_close op_close/multiple/divide
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I87-----
func -> id op_open args op_close 路 op_close
-----I88-----
args_left -> args_left id split 路 id
-----I89-----
factor -> op_open exp 路op_close $/plus/minus/multiple/divide
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I90-----
func -> id op_open 路args op_close $/plus/minus/multiple/divide
func -> id op_open 路op_close $/plus/minus/multiple/divide
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I91-----
func -> id op_open args op_close 路 $/plus/minus
-----I92-----
func -> id op_open args op_close 路 $/multiple/divide
-----I93-----
term -> term multiple factor 路 op_close/plus/minus/multiple/divide
-----I94-----
factor -> op_open 路exp op_close op_close/plus/minus/multiple/divide
exp -> 路exp plus term op_close/plus/minus
exp -> 路exp minus term op_close/plus/minus
exp -> 路term op_close/plus/minus
term -> 路term multiple factor op_close/multiple/divide
term -> 路term divide factor op_close/multiple/divide
term -> 路factor op_close/multiple/divide
factor -> 路op_open exp op_close op_close
factor -> 路num op_close
factor -> 路id op_close
factor -> 路func op_close
func -> 路id op_open args op_close op_close
func -> 路id op_open op_close op_close
-----I95-----
factor -> num 路 op_close/plus/minus/multiple/divide
-----I96-----
factor -> id 路 op_close/plus/minus/multiple/divide
func -> id 路op_open args op_close op_close/plus/minus/multiple/divide
func -> id 路op_open op_close op_close/plus/minus/multiple/divide
-----I97-----
factor -> func 路 op_close/plus/minus/multiple/divide
-----I98-----
term -> term divide factor 路 op_close/plus/minus/multiple/divide
-----I99-----
factor -> op_open exp op_close 路 op_close/plus/minus
-----I100-----
func -> id op_open args 路op_close op_close/plus/minus
-----I101-----
func -> id op_open op_close 路 op_close/plus/minus
-----I102-----
factor -> op_open exp op_close 路 op_close/multiple/divide
-----I103-----
func -> id op_open args 路op_close op_close/multiple/divide
-----I104-----
func -> id op_open op_close 路 op_close/multiple/divide
-----I105-----
factor -> op_open exp op_close 路 $/plus/minus/multiple/divide
-----I106-----
func -> id op_open args 路op_close $/plus/minus/multiple/divide
-----I107-----
func -> id op_open op_close 路 $/plus/minus/multiple/divide
-----I108-----
factor -> op_open exp 路op_close op_close/plus/minus/multiple/divide
exp -> exp 路plus term op_close/plus/minus
exp -> exp 路minus term op_close/plus/minus
-----I109-----
func -> id op_open 路args op_close op_close/plus/minus/multiple/divide
func -> id op_open 路op_close op_close/plus/minus/multiple/divide
args -> 路args_left id op_close
args -> 路id op_close
args_left -> 路args_left id split id
args_left -> 路id split id
-----I110-----
func -> id op_open args op_close 路 op_close/plus/minus
-----I111-----
func -> id op_open args op_close 路 op_close/multiple/divide
-----I112-----
func -> id op_open args op_close 路 $/plus/minus/multiple/divide
-----I113-----
factor -> op_open exp op_close 路 op_close/plus/minus/multiple/divide
-----I114-----
func -> id op_open args 路op_close op_close/plus/minus/multiple/divide
-----I115-----
func -> id op_open op_close 路 op_close/plus/minus/multiple/divide
-----I116-----
func -> id op_open args op_close 路 op_close/plus/minus/multiple/divide
I0 => SHIFT{(exp,I1),(term,I2),(factor,I3),(op_open,I4),(num,I5),(id,I6),(func,I7)}
I1 => SHIFT{(plus,I8),(minus,I9)}
REDUCE{($,accept,0)}
I2 => SHIFT{(multiple,I10),(divide,I11)}
REDUCE{(plus,exp,2),(minus,exp,2),(op_close,exp,2),($,exp,2)}
I3 => REDUCE{(multiple,term,2),(divide,term,2),(plus,term,2),(minus,term,2),(op_close,term,2),($,term,2)}
I4 => SHIFT{(exp,I12),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I5 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I6 => SHIFT{(op_open,I19)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I7 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I8 => SHIFT{(term,I20),(factor,I21),(op_open,I22),(num,I23),(id,I24),(func,I25)}
I9 => SHIFT{(term,I26),(factor,I21),(op_open,I22),(num,I23),(id,I24),(func,I25)}
I10 => SHIFT{(factor,I27),(op_open,I28),(num,I29),(id,I30),(func,I31)}
I11 => SHIFT{(factor,I32),(op_open,I28),(num,I29),(id,I30),(func,I31)}
I12 => SHIFT{(op_close,I33),(plus,I34),(minus,I35)}
I13 => SHIFT{(multiple,I36),(divide,I37)}
REDUCE{(plus,exp,2),(minus,exp,2),(op_close,exp,2),($,exp,2)}
I14 => REDUCE{(multiple,term,2),(divide,term,2),(plus,term,2),(minus,term,2),(op_close,term,2),($,term,2)}
I15 => SHIFT{(exp,I38),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I16 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I17 => SHIFT{(op_open,I39)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I18 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I19 => SHIFT{(args,I40),(op_close,I41),(args_left,I42),(id,I43)}
I20 => SHIFT{(multiple,I44),(divide,I45)}
REDUCE{(plus,exp,0),(minus,exp,0),(op_close,exp,0),($,exp,0)}
I21 => REDUCE{(multiple,term,2),(divide,term,2),(plus,term,2),(minus,term,2),(op_close,term,2),($,term,2)}
I22 => SHIFT{(exp,I46),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I23 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I24 => SHIFT{(op_open,I47)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I25 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I26 => SHIFT{(multiple,I44),(divide,I45)}
REDUCE{(plus,exp,1),(minus,exp,1),(op_close,exp,1),($,exp,1)}
I27 => REDUCE{(multiple,term,0),(divide,term,0),(plus,term,0),(minus,term,0),(op_close,term,0),($,term,0)}
I28 => SHIFT{(exp,I48),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I29 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I30 => SHIFT{(op_open,I49)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I31 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I32 => REDUCE{(multiple,term,1),(divide,term,1),(plus,term,1),(minus,term,1),(op_close,term,1),($,term,1)}
I33 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I34 => SHIFT{(term,I50),(factor,I51),(op_open,I52),(num,I53),(id,I54),(func,I55)}
I35 => SHIFT{(term,I56),(factor,I51),(op_open,I52),(num,I53),(id,I54),(func,I55)}
I36 => SHIFT{(factor,I57),(op_open,I58),(num,I59),(id,I60),(func,I61)}
I37 => SHIFT{(factor,I62),(op_open,I58),(num,I59),(id,I60),(func,I61)}
I38 => SHIFT{(op_close,I63),(plus,I34),(minus,I35)}
I39 => SHIFT{(args,I64),(op_close,I65),(args_left,I42),(id,I43)}
I40 => SHIFT{(op_close,I66)}
I41 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I42 => SHIFT{(id,I67)}
I43 => SHIFT{(split,I68)}
REDUCE{(op_close,args,1)}
I44 => SHIFT{(factor,I69),(op_open,I70),(num,I71),(id,I72),(func,I73)}
I45 => SHIFT{(factor,I74),(op_open,I70),(num,I71),(id,I72),(func,I73)}
I46 => SHIFT{(op_close,I75),(plus,I34),(minus,I35)}
I47 => SHIFT{(args,I76),(op_close,I77),(args_left,I42),(id,I43)}
I48 => SHIFT{(op_close,I78),(plus,I34),(minus,I35)}
I49 => SHIFT{(args,I79),(op_close,I80),(args_left,I42),(id,I43)}
I50 => SHIFT{(multiple,I81),(divide,I82)}
REDUCE{(plus,exp,0),(minus,exp,0),(op_close,exp,0),($,exp,0)}
I51 => REDUCE{(multiple,term,2),(divide,term,2),(plus,term,2),(minus,term,2),(op_close,term,2),($,term,2)}
I52 => SHIFT{(exp,I83),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I53 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I54 => SHIFT{(op_open,I84)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I55 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I56 => SHIFT{(multiple,I81),(divide,I82)}
REDUCE{(plus,exp,1),(minus,exp,1),(op_close,exp,1),($,exp,1)}
I57 => REDUCE{(multiple,term,0),(divide,term,0),(plus,term,0),(minus,term,0),(op_close,term,0),($,term,0)}
I58 => SHIFT{(exp,I85),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I59 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I60 => SHIFT{(op_open,I86)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I61 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I62 => REDUCE{(multiple,term,1),(divide,term,1),(plus,term,1),(minus,term,1),(op_close,term,1),($,term,1)}
I63 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I64 => SHIFT{(op_close,I87)}
I65 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I66 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I67 => SHIFT{(split,I88)}
REDUCE{(op_close,args,0)}
I68 => REDUCE{(id,args_left,1)}
I69 => REDUCE{(multiple,term,0),(divide,term,0),(plus,term,0),(minus,term,0),(op_close,term,0),($,term,0)}
I70 => SHIFT{(exp,I89),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I71 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I72 => SHIFT{(op_open,I90)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I73 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I74 => REDUCE{(multiple,term,1),(divide,term,1),(plus,term,1),(minus,term,1),(op_close,term,1),($,term,1)}
I75 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I76 => SHIFT{(op_close,I91)}
I77 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I78 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I79 => SHIFT{(op_close,I92)}
I80 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I81 => SHIFT{(factor,I93),(op_open,I94),(num,I95),(id,I96),(func,I97)}
I82 => SHIFT{(factor,I98),(op_open,I94),(num,I95),(id,I96),(func,I97)}
I83 => SHIFT{(op_close,I99),(plus,I34),(minus,I35)}
I84 => SHIFT{(args,I100),(op_close,I101),(args_left,I42),(id,I43)}
I85 => SHIFT{(op_close,I102),(plus,I34),(minus,I35)}
I86 => SHIFT{(args,I103),(op_close,I104),(args_left,I42),(id,I43)}
I87 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I88 => REDUCE{(id,args_left,0)}
I89 => SHIFT{(op_close,I105),(plus,I34),(minus,I35)}
I90 => SHIFT{(args,I106),(op_close,I107),(args_left,I42),(id,I43)}
I91 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I92 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I93 => REDUCE{(multiple,term,0),(divide,term,0),(plus,term,0),(minus,term,0),(op_close,term,0),($,term,0)}
I94 => SHIFT{(exp,I108),(term,I13),(factor,I14),(op_open,I15),(num,I16),(id,I17),(func,I18)}
I95 => REDUCE{(multiple,factor,1),(divide,factor,1),(plus,factor,1),(minus,factor,1),(op_close,factor,1),($,factor,1)}
I96 => SHIFT{(op_open,I109)}
REDUCE{(multiple,factor,2),(divide,factor,2),(plus,factor,2),(minus,factor,2),(op_close,factor,2),($,factor,2)}
I97 => REDUCE{(multiple,factor,3),(divide,factor,3),(plus,factor,3),(minus,factor,3),(op_close,factor,3),($,factor,3)}
I98 => REDUCE{(multiple,term,1),(divide,term,1),(plus,term,1),(minus,term,1),(op_close,term,1),($,term,1)}
I99 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I100 => SHIFT{(op_close,I110)}
I101 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I102 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I103 => SHIFT{(op_close,I111)}
I104 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I105 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I106 => SHIFT{(op_close,I112)}
I107 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I108 => SHIFT{(op_close,I113),(plus,I34),(minus,I35)}
I109 => SHIFT{(args,I114),(op_close,I115),(args_left,I42),(id,I43)}
I110 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I111 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I112 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
I113 => REDUCE{(multiple,factor,0),(divide,factor,0),(plus,factor,0),(minus,factor,0),(op_close,factor,0),($,factor,0)}
I114 => SHIFT{(op_close,I116)}
I115 => REDUCE{(multiple,func,1),(divide,func,1),(plus,func,1),(minus,func,1),(op_close,func,1),($,func,1)}
I116 => REDUCE{(multiple,func,0),(divide,func,0),(plus,func,0),(minus,func,0),(op_close,func,0),($,func,0)}
var gen2 = new ParserGenerator();
// Non-Terminals
var S = gen2.CreateNewProduction("S", false);
var L = gen2.CreateNewProduction("L", false);
var R = gen2.CreateNewProduction("R", false);
// Terminals
var equal = gen2.CreateNewProduction("=");
var mult = gen2.CreateNewProduction("*");
var div = gen2.CreateNewProduction("/");
var pp = gen2.CreateNewProduction("+");
var mi = gen2.CreateNewProduction("-");
var num = gen2.CreateNewProduction("num");
// right associativity, -
gen2.PushConflictSolver(false, new Tuple<ParserProduction, int>(S, 4));
// left associativity, *, /
gen2.PushConflictSolver(true, mult, div);
// left associativity, +, -
gen2.PushConflictSolver(true, pp, mi);
S |= S + pp + S;
S |= S + mi + S;
S |= S + mult + S;
S |= S + div + S;
S |= mi + S;
S |= num;
gen2.PushStarts(S);
gen2.Generate();
gen2.PrintStates();
gen2.GenerateLALR();
gen2.PrintStates();
var slr = gen2.CreateShiftReduceParserInstance();
// 2*4+5$
Action<string, string> insert = (string x, string y) =>
{
slr.Insert(x, y);
while (slr.Reduce())
{
Console.Instance.WriteLine(slr.Stack());
var l = slr.LatestReduce();
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Produnction)));
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Contents)));
slr.Insert(x, y);
}
Console.Instance.WriteLine(slr.Stack());
};
var sg2 = new ScannerGenerator();
sg2.PushRule("", "[\\r\\n ]");
sg2.PushRule("+", "\\+");
sg2.PushRule("-", "-");
sg2.PushRule("*", "\\*");
sg2.PushRule("/", "\\/");
sg2.PushRule("(", "\\(");
sg2.PushRule(")", "\\)");
sg2.PushRule(",", ",");
sg2.PushRule("id", "[a-z][a-z0-9]*");
sg2.PushRule("num", "[0-9]+");
sg2.Generate();
sg2.CreateScannerInstance();
var scanner2 = sg2.CreateScannerInstance();
//scanner2.AllocateTarget("2+6*(6+4*7-2)+sin(a,b,c,d)+cos()*pi");
scanner2.AllocateTarget("2+--6*4");
while (scanner2.Valid())
{
var ss = scanner2.Next();
insert(ss.Item1, ss.Item2);
}
insert("$", "$");
Shift-Reduce Conflict! +
States: 8 1
-----I8-----
S -> - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I0-----
S' -> 路S $
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! -
States: 8 1
-----I8-----
S -> - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I1-----
S' -> S 路 $
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
Shift-Reduce Conflict! *
States: 8 1
-----I8-----
S -> - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I2-----
S -> - 路S $/+/-/*//
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! /
States: 8 1
-----I8-----
S -> - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I3-----
S -> num 路 $/+/-/*//
Shift-Reduce Conflict! +
States: 9 1
-----I9-----
S -> S + S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I0-----
S' -> 路S $
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! -
States: 9 1
-----I9-----
S -> S + S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I1-----
S' -> S 路 $
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
Shift-Reduce Conflict! *
States: 9 1
-----I9-----
S -> S + S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I2-----
S -> - 路S $/+/-/*//
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! /
States: 9 1
-----I9-----
S -> S + S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I3-----
S -> num 路 $/+/-/*//
Shift-Reduce Conflict! +
States: 10 1
-----I10-----
S -> S - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I0-----
S' -> 路S $
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! -
States: 10 1
-----I10-----
S -> S - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I1-----
S' -> S 路 $
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
Shift-Reduce Conflict! *
States: 10 1
-----I10-----
S -> S - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I2-----
S -> - 路S $/+/-/*//
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! /
States: 10 1
-----I10-----
S -> S - S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I3-----
S -> num 路 $/+/-/*//
Shift-Reduce Conflict! +
States: 11 1
-----I11-----
S -> S * S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I0-----
S' -> 路S $
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! -
States: 11 1
-----I11-----
S -> S * S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I1-----
S' -> S 路 $
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
Shift-Reduce Conflict! *
States: 11 1
-----I11-----
S -> S * S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I2-----
S -> - 路S $/+/-/*//
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! /
States: 11 1
-----I11-----
S -> S * S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I3-----
S -> num 路 $/+/-/*//
Shift-Reduce Conflict! +
States: 12 1
-----I12-----
S -> S / S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I0-----
S' -> 路S $
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! -
States: 12 1
-----I12-----
S -> S / S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I1-----
S' -> S 路 $
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
Shift-Reduce Conflict! *
States: 12 1
-----I12-----
S -> S / S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I2-----
S -> - 路S $/+/-/*//
S -> 路S + S $/+/-/*//
S -> 路S - S $/+/-/*//
S -> 路S * S $/+/-/*//
S -> 路S / S $/+/-/*//
S -> 路- S $/+/-/*//
S -> 路num $/+/-/*//
Shift-Reduce Conflict! /
States: 12 1
-----I12-----
S -> S / S 路 $/+/-/*//
S -> S 路+ S $/+/-/*//
S -> S 路- S $/+/-/*//
S -> S 路* S $/+/-/*//
S -> S 路/ S $/+/-/*//
-----I3-----
S -> num 路 $/+/-/*//
--------------------------------------------------------
0 3
0 1
S => num
S => 2
0 1 4
0 1 4 2
0 1 4 2 2
0 1 4 2 2 3
0 1 4 2 2 8
S => num
S => 6
0 1 4 2 8
S => - S
S => - 6
0 1 4 9
S => - S
S => - -6
0 1 4 9 6
0 1 4 9 6 3
0 1 4 9 6 11
S => num
S => 4
0 1 4 9
S => S * S
S => --6 * 4
0 1
S => S + S
S => 2 + --6*4
0 1
var gen = new ParserGenerator();
// Non-Terminals
var exp = gen.CreateNewProduction("exp", false);
var term = gen.CreateNewProduction("term", false);
var factor = gen.CreateNewProduction("factor", false);
var func = gen.CreateNewProduction("func", false);
var arguments = gen.CreateNewProduction("args", false);
var args_left = gen.CreateNewProduction("args_left", false);
// Terminals
var plus = gen.CreateNewProduction("plus"); // +
var minus = gen.CreateNewProduction("minus"); // -
var multiple = gen.CreateNewProduction("multiple"); // *
var divide = gen.CreateNewProduction("divide"); // /
var id = gen.CreateNewProduction("id"); // [_$a-zA-Z][_$a-zA-Z0-9]*
var op_open = gen.CreateNewProduction("op_open"); // (
var op_close = gen.CreateNewProduction("op_close"); // )
var num = gen.CreateNewProduction("num"); // [0-9]+
var split = gen.CreateNewProduction("split"); // ,
exp |= exp + plus + term;
exp |= exp + minus + term;
exp |= term;
term |= term + multiple + factor;
term |= term + divide + factor;
term |= factor;
factor |= op_open + exp + op_close;
factor |= num;
factor |= id;
factor |= func;
func |= id + op_open + arguments + op_close;
arguments |= id;
arguments |= arguments + split + id;
arguments |= ParserGenerator.EmptyString;
gen.PushStarts(exp);
gen.Generate();
gen.PrintStates();
var slr = gen.CreateShiftReduceParserInstance();
// 2*4+5$
Action<string, string> insert = (string x, string y) =>
{
slr.Insert(x, y);
while (slr.Reduce())
{
var l = slr.LatestReduce();
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Produnction)));
Console.Instance.Write(l.Produnction.PadLeft(8) + " => ");
Console.Instance.WriteLine(string.Join(" ", l.Childs.Select(z => z.Contents)));
slr.Insert(x, y);
}
};
var sg2 = new ScannerGenerator();
sg2.PushRule("", "[\\r\\n ]");
sg2.PushRule("plus", "\\+");
sg2.PushRule("minus", "-");
sg2.PushRule("multiple", "\\*");
sg2.PushRule("divide", "\\/");
sg2.PushRule("op_open", "\\(");
sg2.PushRule("op_close", "\\)");
sg2.PushRule("split", ",");
sg2.PushRule("id", "[a-z][a-z0-9]*");
sg2.PushRule("num", "[0-9]+");
sg2.Generate();
sg2.CreateScannerInstance();
var scanner2 = sg2.CreateScannerInstance();
scanner2.AllocateTarget("2+6*(6+4*7-2)+sin(a,b)+cos()*pi");
while (scanner2.Valid())
{
var ss = scanner2.Next();
insert(ss.Item1,ss.Item2);
}
insert("$", "$"); factor => num
factor => 2
term => factor
term => 2
exp => term
exp => 2
factor => num
factor => 6
term => factor
term => 6
factor => num
factor => 6
term => factor
term => 6
exp => term
exp => 6
factor => num
factor => 4
term => factor
term => 4
factor => num
factor => 7
term => term multiple factor
term => 4 * 7
exp => exp plus term
exp => 6 + 4*7
factor => num
factor => 2
term => factor
term => 2
exp => exp minus term
exp => 6+4*7 - 2
factor => op_open exp op_close
factor => ( 6+4*7-2 )
term => term multiple factor
term => 6 * (6+4*7-2)
exp => exp plus term
exp => 2 + 6*(6+4*7-2)
args => id
args => a
args => args split id
args => a , b
args => args split id
args => a,b , c
args => args split id
args => a,b,c , d
func => id op_open args op_close
func => sin ( a,b,c,d )
factor => func
factor => sin(a,b,c,d)
term => factor
term => sin(a,b,c,d)
exp => exp plus term
exp => 2+6*(6+4*7-2) + sin(a,b,c,d)
func => id op_open op_close
func => cos ( )
factor => func
factor => cos()
term => factor
term => cos()
factor => id
factor => pi
term => term multiple factor
term => cos() * pi
exp => exp plus term
exp => 2+6*(6+4*7-2)+sin(a,b,c,d) + cos()*pi
// --------------------------------------
//
// Scanner Generator
//
// --------------------------------------
var scanner_gen = new ScannerGenerator();
scanner_gen.PushRule("", @"[\r\n ]"); // Skip characters
scanner_gen.PushRule("end", ";");
scanner_gen.PushRule("plus", @"\+");
scanner_gen.PushRule("minus", @"\-");
scanner_gen.PushRule("multiple", @"\*");
scanner_gen.PushRule("divide", @"\/");
scanner_gen.PushRule("op_open", @"\(");
scanner_gen.PushRule("op_close", @"\)");
scanner_gen.PushRule("num", @"[0-9]+(\.[0-9]+)?([Ee][\+\-]?[0-9]+)?");
// Scanner Instance
scanner_gen.Generate();
var scanner = scanner_gen.CreateScannerInstance();
// --------------------------------------
//
// Parser Generator
//
// --------------------------------------
var parser_gen = new ParserGenerator.ParserGenerator();
// Non-Terminals
var S = parser_gen.CreateNewProduction("S", false);
var E = parser_gen.CreateNewProduction("E", false);
// Terminals
var equal = parser_gen.CreateNewProduction("equal");
var multiple = parser_gen.CreateNewProduction("multiple");
var divide = parser_gen.CreateNewProduction("divide");
var plus = parser_gen.CreateNewProduction("plus");
var minus = parser_gen.CreateNewProduction("minus");
var num = parser_gen.CreateNewProduction("num");
var op_open = parser_gen.CreateNewProduction("op_open");
var op_close = parser_gen.CreateNewProduction("op_close");
var end = parser_gen.CreateNewProduction("end");
// right associativity, -
parser_gen.PushConflictSolver(false, new Tuple<ParserProduction, int>(E, 4));
// left associativity, *, /
parser_gen.PushConflictSolver(true, multiple, divide);
// left associativity, +, -
parser_gen.PushConflictSolver(true, plus, minus);
S |= E + end + ParserAction.Create(x => x.UserContents = x.Childs[0].UserContents);
E |= E + plus + E + ParserAction.Create(x => x.UserContents = (double)x.Childs[0].UserContents + (double)x.Childs[2].UserContents);
E |= E + minus + E + ParserAction.Create(x => x.UserContents = (double)x.Childs[0].UserContents - (double)x.Childs[2].UserContents);
E |= E + multiple + E + ParserAction.Create(x => x.UserContents = (double)x.Childs[0].UserContents * (double)x.Childs[2].UserContents);
E |= E + divide + E + ParserAction.Create(x => x.UserContents = (double)x.Childs[0].UserContents / (double)x.Childs[2].UserContents);
E |= minus + E + ParserAction.Create(x => x.UserContents = -(double)x.Childs[1].UserContents);
E |= op_open + E + op_close + ParserAction.Create(x => x.UserContents = x.Childs[1].UserContents);
E |= num + ParserAction.Create(x => x.UserContents = double.Parse(x.Contents));
parser_gen.PushStarts(S);
parser_gen.GenerateLALR();
// Parser Instance
var parser = parser_gen.CreateShiftReduceParserInstance();
// --------------------------------------
//
// Test
//
// --------------------------------------
var test_lines = File.ReadAllLines(InputFileName);
var builder = new StringBuilder();
foreach (var line in test_lines)
{
parser.Clear();
scanner.AllocateTarget(line);
Action<string, string> insert = (string x, string y) =>
{
parser.Insert(x, y);
if (parser.Error()) throw new Exception();
while (parser.Reduce())
{
parser.Insert(x, y);
if (parser.Error()) throw new Exception();
}
};
try
{
while(scanner.Valid())
{
var ss = scanner.Next();
if (scanner.Error()) throw new Exception();
insert(ss.Item1, ss.Item2);
}
if (scanner.Error()) throw new Exception();
insert("$", "$");
Console.WriteLine((double)(parser.Tree.root.UserContents));
builder.Append($"{(double)(parser.Tree.root.UserContents)}\r\n");
}
catch (Exception ex)
{
Console.WriteLine("Error! Check test case!");
builder.Append("Error\r\n");
}
}
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