#include <userFunction.h>

Inheritance diagram for minsky::UserFunction:

Collaboration diagram for minsky::UserFunction:

Classes
struct	Impl

Public Member Functions
	UserFunction ()

	UserFunction (const std::string &name, const std::string &expression="")

std::vector< std::string >	symbolNames () const

void	compile ()

double	evaluate (double x, double y)

double	operator() (const std::vector< double > &p) override
	evaluate function on arbitrary number of arguments (exprtk support) More...

Units	units (bool check=false) const override
	compute the dimensional units More...

void	displayTooltip (cairo_t *cr, const std::string &tt) const override
	display tooltip text, eg on mouseover More...

std::string	description (const std::string &) override
	name of the associated data operation More...

std::string	name () const override
	function name, shorn of argument decorators More...

void	draw (cairo_t *cairo) const override
	draw this item into a cairo context More...

virtual std::string	description () const
	name of the associated data operation More...

virtual std::string	description (const std::string &)

Public Member Functions inherited from minsky::ItemT< UserFunction, Operation< OperationType::userFunction > >
std::string	classType () const override

ItemT *	clone () const override

void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) override

void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) const override

void	json_pack (classdesc::json_pack_t &j) const override

	ItemT ()=default

	ItemT (const ItemT &)=default

	ItemT (ItemT &&)=delete

ItemT &	operator= (const ItemT &)=default

ItemT &	operator= (ItemT &&)=delete

Public Member Functions inherited from minsky::Operation< OperationType::userFunction >
Type	type () const override

void	iconDraw (cairo_t *) const override
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *cairo) const
	visual representation of operation on the canvas More...

void	iconDraw (cairo_t *) const
	visual representation of operation on the canvas More...

std::size_t	numPorts () const override

	Operation ()

	Operation (const Operation &x)

	Operation (Operation &&x)

Operation &	operator= (const Operation &x)

Operation &	operator= (Operation &&x)

std::string	classType () const override

Public Member Functions inherited from minsky::ItemT< Operation< T >, OperationBase >
void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) override

void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) const override

	ItemT ()=default

	ItemT (const ItemT &)=default

	ItemT (ItemT &&)=delete

ItemT &	operator= (const ItemT &)=default

ItemT &	operator= (ItemT &&)=delete

Public Member Functions inherited from minsky::OperationBase
const OperationBase *	operationCast () const override

OperationBase *	operationCast () override

std::string	portValues () const
	returns a list of values the ports currently have More...

bool	multiWire () const

virtual void	addPorts ()

void	drawUserFunction (cairo_t *cairo) const

void	resize (const LassoBox &b) override
	resize this item on the canvas More...

float	scaleFactor () const override
	factor by which item has been resized More...

double	value () const override
	current value of output port More...

std::vector< std::string >	dimensions () const
	return dimension names of tensor object attached to input if binary op, then the union of dimension names is returned More...

Public Member Functions inherited from minsky::BottomRightResizerItem
bool	onResizeHandle (float x, float y) const override

void	drawResizeHandles (cairo_t *cairo) const override

virtual Point	resizeHandleCoords () const
	returns coordinates of the resizer handle More...

Public Member Functions inherited from minsky::Item
	Item ()=default

virtual std::weak_ptr< Port >	ports (std::size_t i) const
	callback to be run when item deleted from group More...

std::size_t	portsSize () const
	number of ports More...

float	portX (std::size_t i)

float	portY (std::size_t i)

virtual bool	contains (float xx, float yy) const

bool	contains (const Point &p) const

void	updateBoundingBox () override

void	throw_error (const std::string &) const
	mark item on canvas, then throw More...

virtual bool	ioVar () const
	indicates this is a group I/O variable More...

double	rotation () const

double	rotation (const double &r)

std::pair< double, bool >	rotationAsRadians () const
	return the rotation as radians, and whether rotation should have additional straight angle added for text that stays upright. More...

float	iWidth () const

float	iWidth (const float &w)

float	iHeight () const

float	iHeight (const float &h)

virtual void	flip ()
	rotate icon though 180∘ More...

std::string	id () const
	return an id uniquely identifying this item More...

virtual float	x () const

virtual float	y () const

virtual float	zoomFactor () const

void	ensureBBValid () const

float	width () const

float	height () const

virtual std::vector< Point >	corners () const

float	left () const

float	right () const

float	top () const

float	bottom () const

std::string	bookmarkId () const
	Id of bookmark associated with this. More...

void	adjustBookmark () const override
	adjust bookmark list to reflect current configuration More...

float	resizeHandleSize () const
	resize handles should be at least a percentage if the icon size (#1025) More...

virtual bool	inItem (float x, float y) const

virtual bool	onItem (float x, float y) const
	returns true if (x,y) is on the icon More...

virtual void	onMouseDown (float x, float y)
	respond to mouse down events More...

virtual void	onMouseUp (float x, float y)
	respond to mouse up events More...

virtual bool	onMouseMotion (float x, float y)
	respond to mouse motion events with button pressed More...

virtual bool	onMouseOver (float x, float y)
	respond to mouse motion events (hover) without button pressed More...

virtual void	onMouseLeave ()
	respond to mouse leave events (when mouse leaves item) More...

virtual bool	onKeyPress (int keySym, const std::string &utf8, int state)
	respond to key press events More...

virtual void	deleteAttachedWires ()
	delete all attached wires More...

virtual bool	visible () const
	whether this item is visible on the canvas. More...

void	moveTo (float x, float y)

virtual float	scaleFactor (const float &sf)

void	dummyDraw () const
	draw into a dummy cairo context, for purposes of calculating port positions More...

virtual void	updateIcon (double t)
	update display after a step() More...

	Item (const Item &)=default

Item &	operator= (const Item &)=default

virtual	~Item ()

void	drawPorts (cairo_t *cairo) const

virtual ClickType::Type	clickType (float x, float y) const
	returns the clicktype given a mouse click at x, y. More...

virtual std::shared_ptr< Port >	closestOutPort (float x, float y) const
	returns closest output port to x,y More...

virtual std::shared_ptr< Port >	closestInPort (float x, float y) const

virtual std::shared_ptr< Item >	select (float x, float y) const
	returns the variable if point (x,y) is within a visible variable icon, null otherwise. More...

void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) override
	runs the RESTProcess descriptor suitable for this type More...

void	RESTProcess (classdesc::RESTProcess_t &rp, const std::string &d) const override

virtual void	displayDelayedTooltip (float x, float y)
	enable extended tooltip help message appropriate for mouse at (x,y) More...

virtual void	disableDelayedTooltip ()

virtual bool	editorMode () const
	some items have an editor mode attribute More...

virtual void	toggleEditorMode ()

Units	checkUnits () const
	perform units consistency checks More...

ItemPtr	itemPtrFromThis () const
	return a shared_ptr to this More...

virtual void	destroyFrame ()
	destroy any popup windows associated with this More...

Public Member Functions inherited from minsky::NoteBase
virtual std::string const &	detailedText () const

virtual std::string const &	detailedText (const std::string &x)

virtual std::string const &	tooltip () const

virtual std::string const &	tooltip (const std::string &x)

virtual	~NoteBase ()=default

Public Member Functions inherited from minsky::NamedOp
virtual std::string	description () const
	name of the associated data operation More...

Static Public Member Functions
static UserFunction *	create (OperationType::Type t)

Static Public Member Functions inherited from minsky::OperationBase
static OperationBase *	create (Type type)
	factory method. More...

Static Public Member Functions inherited from minsky::Item
static void	drawSelected (cairo_t *cairo)

Static Public Member Functions inherited from minsky::OperationType
static std::string	typeName (int type)
	return the symbolic name of type More...

static Group	classify (Type t)

Public Attributes
std::vector< std::string >	argNames

std::vector< double >	argVals

std::string	expression

Public Attributes inherited from minsky::OperationBase
double	arg =1
	operation argument. For example, the offset used in a difference operator, or binsize in a binning op More...

std::string	axis
	axis selector in tensor operations More...

Public Attributes inherited from minsky::Item
float	m_x =0

float	m_y =0
	position in canvas, or within group More...

float	m_sf =1
	scale factor of item on canvas, or within group More...

bool	onResizeHandles =false
	set to true to indicate mouse is ovcaler resize handles More...

bool	onBorder =false
	true to indicate mouse hovering over border More...

std::string	deleteCallback

BoundingBox	bb
	canvas bounding box. More...

Public Attributes inherited from minsky::NoteBase
bool	mouseFocus =false
	true if target of a mouseover More...

bool	selected =false
	true if selected for cut, copy or group operation More...

bool	bookmark =false
	Is this item also a bookmark? More...

Static Public Attributes
static int	nextId =0

Static Public Attributes inherited from minsky::OperationBase
static constexpr float	l =-8

static constexpr float	h =12

static constexpr float	r =12

Private Member Functions
void	updateBB () override

	CLASSDESC_ACCESS (UserFunction)

Private Attributes
std::shared_ptr< Impl >	impl

Additional Inherited Members
Public Types inherited from minsky::Operation< OperationType::userFunction >
typedef OperationType::Type	Type

Public Types inherited from minsky::OperationBase
typedef OperationType::Type	Type

Public Types inherited from minsky::OperationType
enum	Type { constant, time, integrate, differentiate, data, ravel, euler, pi, zero, one, inf, percent, add, subtract, multiply, divide, min, max, and_, or_, log, pow, polygamma, lt, le, eq, userFunction, copy, sqrt, exp, ln, sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, abs, floor, frac, not_, Gamma, fact, sum, product, infimum, supremum, any, all, infIndex, supIndex, runningSum, runningProduct, difference, differencePlus, innerProduct, outerProduct, index, gather, meld, merge, slice, size, shape, mean, median, stdDev, moment, histogram, covariance, correlation, linearRegression, numOps }

enum	Group { general, constop, binop, function, reduction, scan, tensor, statistics }

Protected Member Functions inherited from minsky::OperationBase
void	setCachedText (cairo_t *, const std::string &, double) const
	check if cachedPango is up to date, and if not recreate More...

Protected Member Functions inherited from minsky::NamedOp
	CLASSDESC_ACCESS (NamedOp)

Static Protected Member Functions inherited from minsky::Item
static void	drawResizeHandle (cairo_t *cairo, double x, double y, double sf, double angle)

Protected Attributes inherited from minsky::OperationBase
classdesc::Exclude< std::shared_ptr< ecolab::Pango > >	cachedPango

Protected Attributes inherited from minsky::Item
double	m_width =20

double	m_height =20

ItemPortVector	m_ports

minsky::Item::MemoisedRotator	memoisedRotator

Protected Attributes inherited from minsky::NamedOp
std::string	m_description

Detailed Description

Definition at line 27 of file userFunction.h.

Constructor & Destructor Documentation

◆ UserFunction() [1/2]

minsky::UserFunction::UserFunction ( )

inline

Definition at line 38 of file userFunction.h.

Referenced by create().

38 : UserFunction("uf"+std::to_string(nextId++)+"(x,y)") {}

minsky::UserFunction::UserFunction

UserFunction()

Definition: userFunction.h:38

minsky::UserFunction::nextId

static int nextId

Definition: userFunction.h:34

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◆ UserFunction() [2/2]

minsky::UserFunction::UserFunction	(	const std::string &	name,
		const std::string &	expression = `""`
	)

Definition at line 134 of file userFunction.cc.

                                                                         : impl(make_shared<Impl>()), argNames{"x","y"}, expression(expression)  {
     UserFunction::description(name);
   }

Member Function Documentation

◆ CLASSDESC_ACCESS()

minsky::UserFunction::CLASSDESC_ACCESS ( UserFunction )

private

◆ compile()

void minsky::UserFunction::compile ( )

Definition at line 175 of file userFunction.cc.

References minsky::anonymous_namespace{userFunction.cc}::addTimeVariables(), argNames, argVals, minsky::canonicalName(), expression, f, minsky::group, impl, minsky::minsky(), minsky::anonymous_namespace{userFunction.cc}::parser, symbolNames(), minsky::Item::throw_error(), minsky::Minsky::userFunctions, minsky::valueIdFromScope(), and minsky::Minsky::variableValues.

   {
     impl->compiledExpression=exprtk::expression<double>();
 
     // build symbol table
     impl->symbols.clear();
     impl->functions.clear();
     addTimeVariables(impl->symbols);
     for (auto& i: symbolNames())
       {
         auto scopedName=valueIdFromScope(group.lock(),canonicalName(i));
         auto v=minsky().variableValues.find(scopedName);
         if (v!=minsky().variableValues.end())
           {
             impl->symbols.add_variable(i, (*v->second)[0]);
             continue;
           }
         auto f=minsky().userFunctions.find(scopedName);
         if (f!=minsky().userFunctions.end())
           {
             impl->functions.emplace_back(f->second);
             impl->symbols.add_function(i,impl->functions.back());
           }
       }
 
     // add arguments
     argVals.resize(argNames.size());
     for (size_t i=0; i<argNames.size(); ++i)
       impl->symbols.add_variable(argNames[i], argVals[i]);
     impl->compiledExpression.register_symbol_table(impl->symbols);
     
     if (!parser.compile(expression, impl->compiledExpression))
       {
         string errorInfo;
         for (size_t i=0; i<parser.error_count(); ++i)
           errorInfo+=parser.get_error(i).diagnostic+'\n';
         throw_error("Invalid function expression:\n"+errorInfo);
       }
   }

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◆ create()

static UserFunction* minsky::UserFunction::create ( OperationType::Type t )

inlinestatic

Definition at line 57 of file userFunction.h.

References UserFunction(), and minsky::OperationType::userFunction.

58 {return (t==OperationType::userFunction)? new UserFunction: nullptr;}

minsky::OperationType::userFunction

Definition: operationType.h:43

minsky::UserFunction::UserFunction

UserFunction()

Definition: userFunction.h:38

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◆ description() [1/3]

string minsky::NamedOp::description

name of the associated data operation

Definition at line 573 of file operation.cc.

   {
     return m_description;  
   }

◆ description() [2/3]

string minsky::NamedOp::description

Definition at line 578 of file operation.cc.

   {
     m_description=x;
     updateBB(); // adjust icon bounding box - see ticket #1121
     return m_description;
   }    

◆ description() [3/3]

string minsky::UserFunction::description ( const std::string & x )

overridevirtual

name of the associated data operation

Reimplemented from minsky::NamedOp.

Definition at line 231 of file userFunction.cc.

References argNames, and minsky::NamedOp::description().

Referenced by MathDAG::OperationDAG< OperationType::subtract >::render().

   {
     NamedOp::description(nm);
     static const regex extractArgList(R"([^(]*\(([^)]*)\))");
     smatch match;
     string argList;
     if (regex_match(nm,match,extractArgList))
       argList=match[1];
 
     argNames.clear();
     auto end=argList.find(',');
     decltype(end) begin=0;
     for (; end!=string::npos; begin=end+1, end=argList.find(',',begin))
       argNames.push_back(argList.substr(begin,end-begin));
     argNames.push_back(argList.substr(begin));
     return nm;
   }

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◆ displayTooltip()

void minsky::UserFunction::displayTooltip	(	cairo_t *	cairo,
		const std::string &	tooltip
	)		const

inlineoverridevirtual

display tooltip text, eg on mouseover

Reimplemented from minsky::Item.

Definition at line 48 of file userFunction.h.

References minsky::Item::displayTooltip(), and expression.

49 {Item::displayTooltip(cr,tt.empty()? expression: tt+" "+expression);}

minsky::Item::displayTooltip

virtual void displayTooltip(cairo_t *, const std::string &) const

display tooltip text, eg on mouseover

Definition: item.cc:398

minsky::UserFunction::expression

std::string expression

Definition: userFunction.h:37

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◆ draw()

void minsky::UserFunction::draw ( cairo_t * cairo ) const

inlineoverridevirtual

draw this item into a cairo context

Reimplemented from minsky::OperationBase.

Definition at line 60 of file userFunction.h.

References minsky::OperationBase::drawUserFunction().

60 {drawUserFunction(cairo);}

minsky::OperationBase::drawUserFunction

void drawUserFunction(cairo_t *cairo) const

Definition: operation.cc:143

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◆ evaluate()

double minsky::UserFunction::evaluate	(	double	x,
		double	y
	)

Definition at line 215 of file userFunction.cc.

References argVals, and impl.

Referenced by minsky::EvalOp< minsky::OperationType::constant >::evaluate().

   {
     if (!argVals.empty()) argVals[0]=in1;
     if (argVals.size()>1) argVals[1]=in2;
     for (size_t i=2; i<argVals.size(); ++i) argVals[i]=0;
     return impl->compiledExpression.value();
   }

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◆ name()

string minsky::UserFunction::name ( ) const

overridevirtual

function name, shorn of argument decorators

Implements minsky::CallableFunction.

Definition at line 249 of file userFunction.cc.

References minsky::NamedOp::description().

   {
     static const regex extractName(R"(([^(]*).*)");
     smatch match;
     auto d=description();
     regex_match(d, match, extractName);
     assert (match.size()>1);
     return match[1];
   }    

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◆ operator()()

double minsky::UserFunction::operator() ( const std::vector< double > & p )

overridevirtual

evaluate function on arbitrary number of arguments (exprtk support)

Implements minsky::CallableFunction.

Definition at line 223 of file userFunction.cc.

References argVals, and impl.

   {
     size_t i=0;
     for (; i<p.size() && i<argVals.size(); ++i) argVals[i]=p[i];
     for (; i<argVals.size(); ++i) argVals[i]=0;
     return impl->compiledExpression.value();
   }

◆ symbolNames()

vector< string > minsky::UserFunction::symbolNames ( ) const

Definition at line 138 of file userFunction.cc.

References expression.

Referenced by compile().

   {
     std::set<std::string> symbolNames;
 
     string word;
     bool inWord=false, inString=false, quoted=false;
     for (auto c: expression)
       {
       switch (c)
         {
         case '\'': if (!quoted) inString=!inString; break;
         case '\\': quoted=true; break;
         default: quoted=false; break; // I'm assuming that \" embeds a quote, but may not be true
         }
                                                      
       if (!inWord && !inString)
         inWord=isalpha(c);
 
       if (inWord)
         {
           if (isalnum(c) || c=='_' || c=='.')
             word+=c;
           else
             {
               // trailing '.' not allowed
               if (word.back()=='.') word.erase(word.end()-1);
               symbolNames.insert(word);
               word.clear();
               inWord=false;
             }
         }
       }
     if (!word.empty()) // we ended on an identifier
       symbolNames.insert(word);
     return {symbolNames.begin(), symbolNames.end()};
   }

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◆ units()

Units minsky::UserFunction::units ( bool check = false ) const

overridevirtual

compute the dimensional units

Parameters

check - if true, then perform consistency checks

Exceptions

if	check=true and dimensions inconsistent

Reimplemented from minsky::OperationBase.

Definition at line 44 of file userFunction_units.cc.

References minsky::canonicalName(), minsky::cminsky(), f, minsky::group, pyminsky::minsky, minsky::timeUnit, minsky::UnitsExpressionWalker::units, minsky::anonymous_namespace{userFunction_units.cc}::unitsParser, minsky::Minsky::userFunctions, minsky::valueIdFromScope(), and minsky::Minsky::variableValues.

   {
     UnitsExpressionWalker::check=check;
     vector<UnitsExpressionWalker> args(argNames.size());
     if (!args.empty()) args[0].units=m_ports[1]->units(check);
     if (args.size()>1) args[1].units=m_ports[2]->units(check);
     
     timeUnit.units=Units(cminsky().timeUnit);
     
     vector<UnitsExpressionWalker> externalUnits;
     exprtk::symbol_table<UnitsExpressionWalker> symbolTable, unknownVariables;
     exprtk::expression<UnitsExpressionWalker> compiled;
     compiled.register_symbol_table(unknownVariables);
     compiled.register_symbol_table(symbolTable);
     for (size_t i=0; i<args.size(); ++i)
       {
         args[i].check=check;
         symbolTable.add_variable(argNames[i],args[i]);
       }
 
     const std::vector<std::string> externalIds=symbolNames();
     vector<ExprTkCallableFunction> externalFunctions;
     
     externalUnits.reserve(externalIds.size());
     for (auto& i: externalIds)
       {
         if (find(argNames.begin(), argNames.end(), i)!=argNames.end()) continue; // skip arguments
         auto id=valueIdFromScope(group.lock(),canonicalName(i));
         auto v=minsky().variableValues.find(id);
         if (v!=minsky().variableValues.end())
           {
             externalUnits.emplace_back();
             externalUnits.back().units=v->second->units;
             externalUnits.back().check=check;
             unknownVariables.add_variable(i, externalUnits.back());
             continue;
           }
         auto f=minsky().userFunctions.find(id);
         if (f!=minsky().userFunctions.end())
           {
             externalFunctions.emplace_back(f->second);
             unknownVariables.add_function(i,externalFunctions.back());
           }
       }
     unknownVariables.add_variable("time",minsky::timeUnit);
 
     try
       {
         unitsParser.compile(expression, compiled);
         return compiled.value().units;
       }
     catch (const std::exception& ex)
       {
         if (check)
           throw_error(ex.what());
         else
           return {};
       }
   }

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◆ updateBB()

void minsky::UserFunction::updateBB ( )

inlineoverrideprivatevirtual

Implements minsky::NamedOp.

Definition at line 31 of file userFunction.h.

References minsky::Item::bb, and minsky::BoundingBox::update().

31 {bb.update(*this);}

minsky::Item::bb

BoundingBox bb

canvas bounding box.

Definition: item.h:192

minsky::BoundingBox::update

void update(const Item &x)

Definition: item.cc:46

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Member Data Documentation

◆ argNames

std::vector<std::string> minsky::UserFunction::argNames

Definition at line 35 of file userFunction.h.

Referenced by compile(), and description().

◆ argVals

std::vector<double> minsky::UserFunction::argVals

Definition at line 36 of file userFunction.h.

Referenced by compile(), evaluate(), and operator()().

◆ expression

std::string minsky::UserFunction::expression

Definition at line 37 of file userFunction.h.

Referenced by compile(), displayTooltip(), minsky::Minsky::setDefinition(), and symbolNames().

◆ impl

std::shared_ptr<Impl> minsky::UserFunction::impl

private

Definition at line 29 of file userFunction.h.

Referenced by compile(), evaluate(), and operator()().

◆ nextId

int minsky::UserFunction::nextId =0

static

Definition at line 34 of file userFunction.h.

The documentation for this class was generated from the following files:

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ UserFunction() [1/2]

◆ UserFunction() [2/2]

Member Function Documentation

◆ CLASSDESC_ACCESS()

◆ compile()

◆ create()

◆ description() [1/3]

◆ description() [2/3]

◆ description() [3/3]

◆ displayTooltip()

◆ draw()

◆ evaluate()

◆ name()

◆ operator()()

◆ symbolNames()

◆ units()

◆ updateBB()

Member Data Documentation

◆ argNames

◆ argVals

◆ expression

◆ impl

◆ nextId