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Java Lookahead Parser Generator. Generator produces LALR(k) parsers. Grammar
rules are entered using annotations. Rule annotation can be attached to reducer
method, which keeps rule and it's action together.
The newest version!
/*
* Copyright (C) 2016 tkv
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see ,String,Field,Class>
{
@Override
public void loadVariable(String identifier) throws IOException
{
push(getVariable(identifier));
}
protected abstract double getVariable(String identifier) throws IOException;
@Override
public void number(String number) throws IOException
{
push(Primitives.parseDouble(number));
}
@Override
public void setIndex(boolean on)
{
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void loadArray() throws IOException
{
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void loadArrayItem() throws IOException
{
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void convertTo(Class aClass) throws IOException
{
}
@Override
public void convertFrom(Class aClass) throws IOException
{
}
@Override
public void invoke(String method) throws IOException
{
switch (method)
{
case "abs":
abs();
break;
case "acos":
acos();
break;
case "add":
add();
break;
case "asin":
asin();
break;
case "atan":
atan();
break;
case "cbrt":
cbrt();
break;
case "ceil":
ceil();
break;
case "cos":
cos();
break;
case "cosh":
cosh();
break;
case "div":
div();
break;
case "dup":
dup();
break;
case "exp":
exp();
break;
case "expm1":
expm1();
break;
case "floor":
floor();
break;
case "log":
log();
break;
case "log10":
log10();
break;
case "log1p":
log1p();
break;
case "mod":
mod();
break;
case "mul":
mul();
break;
case "neg":
neg();
break;
case "sin":
sin();
break;
case "sinh":
sinh();
break;
case "sqrt":
sqrt();
break;
case "tan":
tan();
break;
case "tanh":
tanh();
break;
case "toDegrees":
toDegrees();
break;
case "toRadians":
toRadians();
break;
case "atan2":
atan2();
break;
case "hypot":
hypot();
break;
case "max":
max();
break;
case "min":
min();
break;
case "pow":
pow();
break;
default:
throw new UnsupportedOperationException(method+" not supported");
}
}
@Override
public void loadField(Field field) throws IOException
{
try
{
push(field.getDouble(null));
}
catch (IllegalArgumentException | IllegalAccessException ex)
{
throw new RuntimeException(ex);
}
}
@Override
public void pow(int pow) throws IOException
{
for (int ii=1;ii> getParameters(String method)
{
List> list = new ArrayList<>();
switch (method)
{
case "abs":
case "acos":
case "add":
case "asin":
case "atan":
case "cbrt":
case "ceil":
case "cos":
case "cosh":
case "div":
case "dup":
case "exp":
case "expm1":
case "floor":
case "log":
case "log10":
case "log1p":
case "mod":
case "mul":
case "neg":
case "sin":
case "sinh":
case "sqrt":
case "tan":
case "tanh":
case "toDegrees":
case "toRadians":
list.add(double.class);
break;
case "atan2":
case "hypot":
case "max":
case "min":
case "pow":
list.add(double.class);
list.add(double.class);
break;
default:
throw new UnsupportedOperationException(method+" not supported");
}
return list;
}
@Override
public Class getReturnType(String method)
{
switch (method)
{
case "abs":
case "acos":
case "add":
case "asin":
case "atan":
case "atan2":
case "cbrt":
case "ceil":
case "cos":
case "cosh":
case "div":
case "dup":
case "exp":
case "expm1":
case "floor":
case "hypot":
case "log":
case "log10":
case "log1p":
case "max":
case "min":
case "mod":
case "mul":
case "neg":
case "pow":
case "sin":
case "sinh":
case "sqrt":
case "tan":
case "tanh":
case "toDegrees":
case "toRadians":
return double.class;
default:
throw new UnsupportedOperationException(method+" not supported");
}
}
@Override
public Class asType(Class variable)
{
return variable;
}
@Override
public String getMethod(Class cls, String name, Class... parameters) throws IOException
{
return findMethod(name, parameters.length);
}
@Override
public Field getField(Class cls, String name)
{
try
{
return cls.getField(name);
}
catch (NoSuchFieldException | SecurityException ex)
{
throw new RuntimeException(ex);
}
}
@Override
public boolean isRadianArgs(String method) throws IOException
{
switch (method)
{
case "cos":
case "sin":
case "tan":
return true;
default:
return false;
}
}
@Override
public boolean isRadianReturn(String method) throws IOException
{
switch (method)
{
case "acos":
case "asin":
case "atan":
return true;
default:
return false;
}
}
}