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improved documentation of JKQTPMathParser

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jkriege2 2022-07-24 21:59:20 +02:00
parent 3eead004a6
commit cfcf01f9ff
3 changed files with 151 additions and 191 deletions
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8
doc/dox/jkqtcommon_statistics_and_math.dox
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@ -17,14 +17,6 @@ In the context of the sequencer program this is a tool class that can be used by
in the project. E.g. used by JKQTPXParsedFunctionLineGraph, JKQTPYParsedFunctionLineGraph
\defgroup jkqtptools_math_parser_utils JKQTPMathParser: Utilities
\ingroup jkqtptools_math_parser
\defgroup jkqtptools_math_parser_Nodes JKQTPMathParser: Memory Representation of Expressions
\ingroup jkqtptools_math_parser
\defgroup jkqtptools_math_parser_Errorhandling JKQTPMathParser Error Handling
\ingroup jkqtptools_math_parser
\defgroup jkqtptools_math_array Data Array Tools
\ingroup jkqtcommon_statistics_and_math

61
lib/jkqtcommon_statistics_and_math/jkqtpmathparser.cpp
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@ -641,7 +641,6 @@ std::string JKQTPMathParser::currenttokentostring() {
// class constructor
JKQTPMathParser::JKQTPMathParser() {
jkmathparser_exception_function=nullptr;
data=nullptr;
argc=0;
argv=nullptr;
addStandardFunctions();
@ -735,16 +734,6 @@ JKQTPMathParser::~JKQTPMathParser()
clearVariables();
}
void JKQTPMathParser::setData(void *__value)
{
this->data = __value;
}
void *JKQTPMathParser::getData() const
{
return this->data;
}
void JKQTPMathParser::addVariableDouble(const std::string& ni, double* v)
{
std::string name=strip(ni);
@ -1179,13 +1168,13 @@ JKQTPMathParser::jkmpNode* JKQTPMathParser::logicalExpression(bool get){
for(;;) // forever, do until you find anything else than an expressions
switch(CurrentToken) {
case LOGIC_OR:
left= new jkmpBinaryBoolNode(jkmpLOPor, left, logicalTerm(true), this, nullptr);
left= new jkmpBinaryBoolNode(jkmpLOP::LOPor, left, logicalTerm(true), this, nullptr);
break;
case LOGIC_XOR:
left= new jkmpBinaryBoolNode(jkmpLOPxor, left, logicalTerm(true), this, nullptr);
left= new jkmpBinaryBoolNode(jkmpLOP::LOPxor, left, logicalTerm(true), this, nullptr);
break;
case LOGIC_NOR:
left= new jkmpBinaryBoolNode(jkmpLOPnor, left, logicalTerm(true), this, nullptr);
left= new jkmpBinaryBoolNode(jkmpLOP::LOPnor, left, logicalTerm(true), this, nullptr);
break;
default:
return left;
@ -1198,10 +1187,10 @@ JKQTPMathParser::jkmpNode* JKQTPMathParser::logicalTerm(bool get){
for(;;) // forever, do until you find anything else than an expressions
switch(CurrentToken) {
case LOGIC_AND:
left= new jkmpBinaryBoolNode(jkmpLOPand, left, compExpression(true), this, nullptr);
left= new jkmpBinaryBoolNode(jkmpLOP::LOPand, left, compExpression(true), this, nullptr);
break;
case LOGIC_NAND:
left= new jkmpBinaryBoolNode(jkmpLOPnand, left, compExpression(true), this, nullptr);
left= new jkmpBinaryBoolNode(jkmpLOP::LOPnand, left, compExpression(true), this, nullptr);
break;
default:
return left;
@ -1214,22 +1203,22 @@ JKQTPMathParser::jkmpNode* JKQTPMathParser::compExpression(bool get){
for(;;) // forever, do until you find anything else than an expressions
switch(CurrentToken) {
case COMP_EQUALT:
left= new jkmpCompareNode(jkmpCOMPequal, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::equal, left, mathExpression(true), this, nullptr);
break;
case COMP_UNEQUAL:
left= new jkmpCompareNode(jkmpCOMPnequal, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::nequal, left, mathExpression(true), this, nullptr);
break;
case COMP_GREATER:
left= new jkmpCompareNode(jkmpCOMPgreater, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::greater, left, mathExpression(true), this, nullptr);
break;
case COMP_SMALLER:
left= new jkmpCompareNode(jkmpCOMPlesser, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::lesser, left, mathExpression(true), this, nullptr);
break;
case COMP_GEQUAL:
left= new jkmpCompareNode(jkmpCOMPgreaterequal, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::greaterequal, left, mathExpression(true), this, nullptr);
break;
case COMP_SEQUAL:
left= new jkmpCompareNode(jkmpCOMPlesserequal, left, mathExpression(true), this, nullptr);
left= new jkmpCompareNode(jkmpCOMP::lesserequal, left, mathExpression(true), this, nullptr);
break;
default:
return left;
@ -1551,7 +1540,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpBinaryArithmeticNode::evaluate(
JKQTPMathParser::jkmpCompareNode::jkmpCompareNode(char op, JKQTPMathParser::jkmpNode* l, JKQTPMathParser::jkmpNode* r, JKQTPMathParser* p, JKQTPMathParser::jkmpNode* par){
JKQTPMathParser::jkmpCompareNode::jkmpCompareNode(jkmpCOMP op, JKQTPMathParser::jkmpNode* l, JKQTPMathParser::jkmpNode* r, JKQTPMathParser* p, JKQTPMathParser::jkmpNode* par){
left=l;
right=r;
left->setParent(this);
@ -1572,7 +1561,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
if (l.type!=r.type) parser->jkmpError("you can't compare different datatypes");
switch(operation) {
case jkmpCOMPequal:
case jkmpCOMP::equal:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num==r.num);
return res;
@ -1586,7 +1575,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
return res;
}
break;
case jkmpCOMPnequal:
case jkmpCOMP::nequal:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num!=r.num);
return res;
@ -1600,7 +1589,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
return res;
}
break;
case jkmpCOMPgreater:
case jkmpCOMP::greater:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num>r.num);
return res;
@ -1614,7 +1603,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
return res;
}
break;
case jkmpCOMPlesser:
case jkmpCOMP::lesser:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num<r.num);
return res;
@ -1628,7 +1617,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
return res;
}
break;
case jkmpCOMPgreaterequal:
case jkmpCOMP::greaterequal:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num>=r.num);
return res;
@ -1642,7 +1631,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
return res;
}
break;
case jkmpCOMPlesserequal:
case jkmpCOMP::lesserequal:
if (l.type==JKQTPMathParser::jkmpDouble) {
res.boolean=(l.num<=r.num);
return res;
@ -1668,7 +1657,7 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpCompareNode::evaluate(){
JKQTPMathParser::jkmpBinaryBoolNode::jkmpBinaryBoolNode(char op, JKQTPMathParser::jkmpNode* l, JKQTPMathParser::jkmpNode* r, JKQTPMathParser* p, JKQTPMathParser::jkmpNode* par){
JKQTPMathParser::jkmpBinaryBoolNode::jkmpBinaryBoolNode(jkmpLOP op, JKQTPMathParser::jkmpNode* l, JKQTPMathParser::jkmpNode* r, JKQTPMathParser* p, JKQTPMathParser::jkmpNode* par){
left=l;
right=r;
left->setParent(this);
@ -1686,23 +1675,23 @@ JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpBinaryBoolNode::evaluate(){
if ((l.type!=JKQTPMathParser::jkmpBool)||(r.type!=JKQTPMathParser::jkmpBool)) parser->jkmpError("logical operations only for bool");
switch(operation) {
case jkmpLOPand:
case jkmpLOP::LOPand:
res.type=JKQTPMathParser::jkmpBool;
res.boolean=l.boolean&&r.boolean;
return res;
case jkmpLOPor:
case jkmpLOP::LOPor:
res.type=JKQTPMathParser::jkmpBool;
res.boolean=l.boolean||r.boolean;
return res;
case jkmpLOPnor:
case jkmpLOP::LOPnor:
res.type=JKQTPMathParser::jkmpBool;
res.boolean=!(l.boolean||r.boolean);
return res;
case jkmpLOPxor:
case jkmpLOP::LOPxor:
res.type=JKQTPMathParser::jkmpBool;
res.boolean=(l.boolean&& (!r.boolean))||(r.boolean&& (!l.boolean));
return res;
case jkmpLOPnand:
case jkmpLOP::LOPnand:
res.type=JKQTPMathParser::jkmpBool;
res.boolean=!(l.boolean&&r.boolean);
return res;
@ -1793,7 +1782,7 @@ JKQTPMathParser::jkmpFunctionNode::jkmpFunctionNode(const std::string& name, JKQ
}
JKQTPMathParser::jkmpResult JKQTPMathParser::jkmpFunctionNode::evaluate() {
JKQTPMathParser::jkmpResult data[255];
JKQTPMathParser::jkmpResult data[257];
if (n>0) {
for (int i=0; i<n; i++) {
data[i]=child[i]->evaluate();

273
lib/jkqtcommon_statistics_and_math/jkqtpmathparser.h
View File

@ -1,7 +1,7 @@
/*
Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
This software is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License (LGPL) as published by
@ -39,8 +39,8 @@
/*! \brief A simple function parser to parse (build memory tree representation) and
evaluate simple mathematical expressions
\ingroup jkqtptools_math_parser
This class implements a simple function parser which can parse
mathematical expressions like <code> z=a*3+2.34^2*sin(pi*sqrt(x))</code> .
More than one expression can be separated by semicolon ';'. The result of
@ -218,84 +218,19 @@
*/
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
{
protected:
void* data;
/** \brief the possible tokens that can be recognized by the tokenizer in JKQTPMathParser::getToken()
* \ingroup jkqtptools_math_parser_utils
*/
enum jkmpTokenType {
END, /*!< \brief end token */
PRINT, /*!< \brief a semicolon ';' */
PARAMETER_DIV, /*!< \brief a comma ',' between two function parameters */
STRING_DELIM, /*!< \brief a string delimiter ' or " */
NAME, /*!< \brief a name (consisting of characters) of a variable or function */
NUMBER, /*!< \brief a number in scientific notation */
PLUS, /*!< \brief a plus operator '+' */
MINUS, /*!< \brief a minus operator '-' */
MUL, /*!< \brief a multiplication operator '*' */
DIV, /*!< \brief a division operator '/' */
MODULO, /*!< \brief a modulo operator '%' */
ASSIGN, /*!< \brief a variable assignment = */
LBRACKET, /*!< \brief left brackets '(' */
RBRACKET, /*!< \brief right brackets ')' */
POWER, /*!< \brief a power operator '^' */
FACTORIAL_LOGIC_NOT, /*!< \brief a factorial operator or a logical NOT '!' */
LOGIC_NOT, /*!< \brief a logical NOT '!' / 'not' */
LOGIC_AND, /*!< \brief a logical AND operator '&&' / 'and' */
LOGIC_OR, /*!< \brief a logical OR operator '||' / 'or' */
LOGIC_XOR, /*!< \brief a logical XOR operator 'xor' */
LOGIC_NOR, /*!< \brief a logical NOR operator 'nor' */
LOGIC_NAND, /*!< \brief a logical NAND operator 'nand' */
LOGIC_TRUE, /*!< \brief 'true' */
LOGIC_FALSE, /*!< \brief 'false' */
COMP_EQUALT, /*!< \brief equals operation '==' */
COMP_UNEQUAL, /*!< \brief unequal operation '!=' */
COMP_GREATER, /*!< \brief greater than operation '>' */
COMP_SMALLER, /*!< \brief smaller than operation '<' */
COMP_GEQUAL, /*!< \brief greater than or equal operation '>=' */
COMP_SEQUAL, /*!< \brief smaller than or equal operation '<=' */
};
/** \brief internal names for logic operations
* \ingroup jkqtptools_math_parser_utils */
enum {
jkmpLOPand='a',
jkmpLOPor='o',
jkmpLOPxor='x',
jkmpLOPnor='n',
jkmpLOPnand='A',
jkmpLOPnot='n'
};
/** \brief jkmpCOMPdefs internal names for compare operations
* \ingroup jkqtptools_math_parser_utils*/
enum {
jkmpCOMPequal='=',
jkmpCOMPnequal='!',
jkmpCOMPlesser='<',
jkmpCOMPgreater='>',
jkmpCOMPlesserequal='a',
jkmpCOMPgreaterequal='b'
};
public:
/** \brief possible result types
* \ingroup jkqtptools_math_parser_utils
*/
/** @name Abstract Syntax Tree / Memory Representation of Expressions */
/**@{*/
/** \brief possible result types */
enum jkmpResultType {jkmpDouble, /*!< \brief a floating-point number with double precision. This is also used to deal with integers */
jkmpString, /*!< \brief a string of characters */
jkmpBool}; /*!< \brief a boolean value true|false */
/** \brief result of any expression
* \ingroup jkqtptools_math_parser_utils*/
/** \brief result of any expression*/
struct JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpResult {
jkmpResult();
@ -314,9 +249,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/** \brief This struct is for managing variables. Unlike jkmpResult this struct
* only contains pointers to the data
* \ingroup jkqtptools_math_parser_utils
*/
* only contains pointers to the data */
struct JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpVariable {
jkmpVariable();
jkmpResultType type; /*!< \brief type of the variable */
@ -326,9 +259,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
bool *boolean; /*!< \brief this points to the variable data if \c type==jkmpBool */
};
/** \brief This struct is for managing temporary variables. It is generally like jkmpVariable.
* \ingroup jkqtptools_math_parser_utils
*/
/** \brief This struct is for managing temporary variables. It is generally like jkmpVariable. */
struct JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpTempVariable {
std::string name; /*!< \brief name of the variable */
jkmpResultType type; /*!< \brief type of the variable */
@ -375,11 +306,10 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/**
* \brief This class is the abstract base class for nodes.
* All allowed node types must inherit from jkmpNode
* \ingroup jkqtptools_math_parser_Nodes
* All allowed node types must inherit from jkmpNode
*/
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpNode {
protected:
@ -408,8 +338,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/**
* \brief This class represents a binary arithmetic operation:
* add (+), subtract (-), multiply (*), divide (/), a to the power of b (a^b)
* \ingroup jkqtptools_math_parser_Nodes
* add (+), subtract (-), multiply (*), divide (/), a to the power of b (a^b)
*/
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpBinaryArithmeticNode: public jkmpNode {
private:
@ -432,14 +361,21 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents a binary boolean operation: and, or, xor, nor, nand
* \ingroup jkqtptools_math_parser_Nodes
*/
/** \brief internal names for logic operations */
enum class jkmpLOP{
LOPand='a',
LOPor='o',
LOPxor='x',
LOPnor='n',
LOPnand='A'
};
/** \brief This class represents a binary boolean operation: and, or, xor, nor, nand */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpBinaryBoolNode: public jkmpNode {
private:
jkmpNode* left, *right;
char operation;
jkmpLOP operation;
public:
/** \brief constructor for a jkmpBinaryBoolNode
* \param op the operation to be performed: (a)nd, (o)r, (x)or, (n)or, nand (A)
@ -448,7 +384,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
* \param p a pointer to a JKQTPMathParser object
* \param par a pointer to the parent node
*/
jkmpBinaryBoolNode(char op, jkmpNode* l, jkmpNode* r, JKQTPMathParser* p, jkmpNode* par);
jkmpBinaryBoolNode(jkmpLOP op, jkmpNode* l, jkmpNode* r, JKQTPMathParser* p, jkmpNode* par);
/** \brief standard destructor, also destroy the children (recursively) */
virtual ~jkmpBinaryBoolNode() override;
@ -457,14 +393,22 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents a binary compare operation: !=, ==, >=, <=, >, <
* \ingroup jkqtptools_math_parser_Nodes
*/
/** \brief jkmpCOMPdefs internal names for compare operations */
enum class jkmpCOMP {
equal='=',
nequal='!',
lesser='<',
greater='>',
lesserequal='a',
greaterequal='b'
};
/** \brief This class represents a binary compare operation: !=, ==, >=, <=, >, < */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpCompareNode: public jkmpNode {
private:
jkmpNode* left, *right;
char operation;
jkmpCOMP operation;
public:
/** \brief constructor for a jkmpCompareNode
* \param op the operation to be performed: != (!), == (=), >= (b), <= (a), (>), (<)
@ -473,7 +417,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
* \param p a pointer to a JKQTPMathParser object
* \param par a pointer to the parent node
*/
jkmpCompareNode(char op, jkmpNode* l, jkmpNode* r, JKQTPMathParser* p, jkmpNode* par);
jkmpCompareNode(jkmpCOMP op, jkmpNode* l, jkmpNode* r, JKQTPMathParser* p, jkmpNode* par);
/** \brief standard destructor, also destroy the children (recursively) */
virtual ~jkmpCompareNode () override;
@ -482,10 +426,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents a unary operations: ! (bool negation), - (arithmetic negation)
* \ingroup jkqtptools_math_parser_Nodes
*/
/** \brief This class represents a unary operations: ! (bool negation), - (arithmetic negation) */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpUnaryNode: public jkmpNode {
private:
jkmpNode* child;
@ -507,9 +448,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
};
/**
* \brief This class represents a variable assignment (a = expression)
* \ingroup jkqtptools_math_parser_Nodes
*/
* \brief This class represents a variable assignment (<code>a = expression</code>) */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpVariableAssignNode: public jkmpNode {
private:
jkmpNode* child;
@ -531,10 +470,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents a number, a string contant or a boolean contant (true/false)
* \ingroup jkqtptools_math_parser_Nodes
*/
/** \brief This class represents a number, a string contant or a boolean contant (\c true / \c false ) */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpConstantNode: public jkmpNode {
private:
jkmpResult data;
@ -550,10 +486,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents a variable.
* \ingroup jkqtptools_math_parser_Nodes
*/
/** \brief This class represents a variable. */
class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT jkmpVariableNode: public jkmpNode {
private:
std::string var;
@ -569,9 +502,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual jkmpResult evaluate() override;
};
/**
* \brief This class represents an arbitrary function.
* \ingroup jkqtptools_math_parser_Nodes
/** \brief This class represents an arbitrary function.
*
* When initialized this class will get the function description that is
* linked to the supplied function name from JKQTPMathParser object. This
@ -604,7 +535,6 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/**
* \brief This class represents a list of jkmpNode.
* \ingroup jkqtptools_math_parser_Nodes
*
* when evaluating the result will be the result of the last node in the list.
*/
@ -630,17 +560,23 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
int getCount();
};
/*@}*/
/**@}*/
public:
/**@}*/
public:
/** @name Error Handling */
/**@{*/
/** \brief error handling: exceptions of the type of this class will be thrown if an error occurs
* \ingroup jkqtptools_math_parser_Errorhandling
*
* \attention If you do not want to use the exception handling which throws
* jkmpException exceptions, but want to write your own error handling, you should write your own
@ -668,31 +604,64 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
virtual const char* what() const noexcept override;
};
/** \brief type for a custom error handler. This an alternative error handling
* \ingroup jkqtptools_math_parser_Errorhandling */
/** \brief type for a custom error handler. This an alternative error handling */
typedef void (*jkmpexceptionf)(std::string);
/** \brief function that throws an exception or calls an error handler
* \ingroup jkqtptools_math_parser_Errorhandling */
/** \brief function that throws an exception or calls an error handler */
void jkmpError(const std::string& st);
private:
/** \brief if this is nullptr then an exception may be thrown otherwise this should point to an error handler that will be called.
* \ingroup jkqtptools_math_parser_Errorhandling */
/** \brief if this is nullptr then an exception may be thrown otherwise this should point to an error handler that will be called. */
jkmpexceptionf jkmathparser_exception_function;
public:
/** \brief activate error handling by use of an exception function
* \ingroup jkqtptools_math_parser_Errorhandling */
/** \brief activate error handling by use of an exception function */
void setException_function(jkmpexceptionf exception_function);
/** \brief deactivate error handling by use of an exception function
* \ingroup jkqtptools_math_parser_Errorhandling */
/** \brief deactivate error handling by use of an exception function */
void resetException_function();
/**@}*/
protected:
/** @name Tokenizer */
/**@{*/
/** \brief the possible tokens that can be recognized by the tokenizer in JKQTPMathParser::getToken() */
enum jkmpTokenType {
END, /*!< \brief end token */
PRINT, /*!< \brief a semicolon ';' */
PARAMETER_DIV, /*!< \brief a comma ',' between two function parameters */
STRING_DELIM, /*!< \brief a string delimiter ' or " */
NAME, /*!< \brief a name (consisting of characters) of a variable or function */
NUMBER, /*!< \brief a number in scientific notation */
PLUS, /*!< \brief a plus operator '+' */
MINUS, /*!< \brief a minus operator '-' */
MUL, /*!< \brief a multiplication operator '*' */
DIV, /*!< \brief a division operator '/' */
MODULO, /*!< \brief a modulo operator '%' */
ASSIGN, /*!< \brief a variable assignment = */
LBRACKET, /*!< \brief left brackets '(' */
RBRACKET, /*!< \brief right brackets ')' */
POWER, /*!< \brief a power operator '^' */
FACTORIAL_LOGIC_NOT, /*!< \brief a factorial operator or a logical NOT '!' */
LOGIC_NOT, /*!< \brief a logical NOT '!' / 'not' */
LOGIC_AND, /*!< \brief a logical AND operator '&&' / 'and' */
LOGIC_OR, /*!< \brief a logical OR operator '||' / 'or' */
LOGIC_XOR, /*!< \brief a logical XOR operator 'xor' */
LOGIC_NOR, /*!< \brief a logical NOR operator 'nor' */
LOGIC_NAND, /*!< \brief a logical NAND operator 'nand' */
LOGIC_TRUE, /*!< \brief 'true' */
LOGIC_FALSE, /*!< \brief 'false' */
COMP_EQUALT, /*!< \brief equals operation '==' */
COMP_UNEQUAL, /*!< \brief unequal operation '!=' */
COMP_GREATER, /*!< \brief greater than operation '>' */
COMP_SMALLER, /*!< \brief smaller than operation '<' */
COMP_GEQUAL, /*!< \brief greater than or equal operation '>=' */
COMP_SEQUAL, /*!< \brief smaller than or equal operation '<=' */
};
/** \brief return the given token as human-readable string */
std::string tokentostring(jkmpTokenType token);
@ -710,6 +679,26 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
*/
std::string readDelim(char delimiter);
/** \brief the current token while parsing a string */
jkmpTokenType CurrentToken;
/** \brief the string value of the current token (when applicable) during the parsing step */
std::string StringValue;
/** \brief the string value of the current token (when applicable) during the parsing step */
double NumberValue;
/** \brief this stream is used to read in the program. An object is created and assigned
* (and destroyed) by the parse()-function */
std::istringstream* program;
/**@}*/
/** @name Parser */
/**@{*/
/** \brief recognizes an compExpression while parsing. If \a get ist \c true, this function first retrieves a new token by calling getToken() */
jkmpNode* compExpression(bool get);
@ -728,9 +717,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/** \brief recognizes a primary while parsing. If \a get ist \c true, this function first retrieves a new token by calling getToken() */
jkmpNode* primary(bool get);
/** \brief this stream is used to read in the program. An object is created and assigned
* (and destroyed) by the parse()-function */
std::istringstream* program;
/**@}*/
/** \brief vector containing all temporary variables */
std::vector<jkmpTempVariable> tempvariables;
@ -741,15 +728,6 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/** \brief map to manage all currently rtegistered functions */
std::map<std::string, jkmpFunctionDescriptor> functions;
/** \brief the current token while parsing a string */
jkmpTokenType CurrentToken;
/** \brief the string value of the current token (when applicable) during the parsing step */
std::string StringValue;
/** \brief the string value of the current token (when applicable) during the parsing step */
double NumberValue;
/** \brief set the defining struct of the given variable */
void setVariable(const std::string& name, jkmpResult value);
/** \brief set the defining struct of the given variable */
@ -760,20 +738,21 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
void addTempVariable(const std::string& name, jkmpResult value);
protected:
/** \brief storage for program argument cound, used by the standard functions \c cmdparam and \c argv \see setArgCV() and getArgCVParam() */
int argc;
/** \brief storage for program arguments, used by the standard functions \c cmdparam and \c argv \see setArgCV() and getArgCVParam() */
char **argv;
public:
/** \brief class constructor */
/** \brief class constructor
*
* \note This also registers all standatd functions and constants by calling addStandardFunctions() and addStandardVariables()
*/
JKQTPMathParser();
/** \brief class destructor */
virtual ~JKQTPMathParser();
/** \copydoc data */
virtual void setData(void* __value);
/** \copydoc data */
virtual void* getData() const;
/** \brief register a new function
* \param name name of the new function
@ -865,7 +844,7 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/** \brief clears the list of internal functions*/
void clearFunctions();
/** \brief registers standard variables*/
/** \brief registers standard variables */
void addStandardVariables();
/** \brief registers standard functions*/
@ -883,10 +862,10 @@ class JKQTCOMMON_STATISTICS_AND_MATH_LIB_EXPORT JKQTPMathParser
/** \brief returns all registered variables */
std::vector<std::pair<std::string, jkmpVariable> > getVariables();
/** \brief store programs command-line arguments, so they are available in the parser */
/** \brief store programs command-line arguments, so they are available in the parser, used by the standard functions \c cmdparam and \c argv */
void setArgCV(int argc, char **argv);
/** \brief return one of programs command-line arguments, or \a defaultResult if it is not present */
/** \brief return one of programs command-line arguments, or \a defaultResult if it is not present, used by the standard functions \c cmdparam and \c argv */
std::string getArgCVParam(const std::string& name, const std::string& defaultResult);
};