Description

Class to display expressions to the terminal.

This is used in the PythonCdb bridge to provide 'str' type python printing for Ex objects. The cadabra2 command line application uses this class for all its output. This class does not necessarily produce output which is readable by sympy; for that, use the DisplaySympy class (as an example, partial derivatives will display using a LaTeX notation using the present class, but be printed as 'sympy.diff' by the DisplaySympy class).

#include <DisplayTerminal.hh>

Inheritance diagram for cadabra::DisplayTerminal:

Public Member Functions
	DisplayTerminal (const Kernel &, const Ex &, bool use_unicode)

Public Member Functions inherited from cadabra::DisplayBase
	DisplayBase (const Kernel &, const Ex &)

void	output (std::ostream &)

void	output (std::ostream &, Ex::iterator)

Protected Member Functions
virtual void	dispatch (std::ostream &, Ex::iterator) override

virtual bool	needs_brackets (Ex::iterator it) override
	Determine if a node needs extra brackets around it. More...

Protected Attributes
bool	use_unicode

Protected Attributes inherited from cadabra::DisplayBase
const Ex &	tree

const Kernel &	kernel

Private Member Functions
void	print_multiplier (std::ostream &, Ex::iterator, int mult=1)

void	print_opening_bracket (std::ostream &, str_node::bracket_t, str_node::parent_rel_t)

void	print_closing_bracket (std::ostream &, str_node::bracket_t, str_node::parent_rel_t)

void	print_parent_rel (std::ostream &, str_node::parent_rel_t, bool first)

void	print_children (std::ostream &, Ex::iterator, int skip=0)

void	print_productlike (std::ostream &, Ex::iterator, const std::string &inbetween)
	Printing members for various standard constructions, e.g. More...

void	print_sumlike (std::ostream &, Ex::iterator)

void	print_fraclike (std::ostream &, Ex::iterator)

void	print_commalike (std::ostream &, Ex::iterator)

void	print_arrowlike (std::ostream &, Ex::iterator)

void	print_powlike (std::ostream &, Ex::iterator)

void	print_intlike (std::ostream &, Ex::iterator)

void	print_equalitylike (std::ostream &, Ex::iterator)

void	print_commutator (std::ostream &str, Ex::iterator it, bool comm)

void	print_components (std::ostream &, Ex::iterator)

void	print_other (std::ostream &, Ex::iterator)

bool	children_have_brackets (Ex::iterator ch) const

Private Attributes
int	bracket_level =0

std::map< std::string, std::string >	symmap

std::map< std::string, std::string >	greekmap

Constructor & Destructor Documentation

DisplayTerminal::DisplayTerminal	(	const Kernel &	k,
		const Ex &	e,
		bool	use_unicode
	)

Member Function Documentation

bool DisplayTerminal::children_have_brackets ( Ex::iterator ch ) const

private

void DisplayTerminal::dispatch	(	std::ostream &	str,
		Ex::iterator	it
	)

overrideprotectedvirtual

Implements cadabra::DisplayBase.

bool DisplayTerminal::needs_brackets ( Ex::iterator it )

overrideprotectedvirtual

Determine if a node needs extra brackets around it.

Uses context from the parent node if necessary. Has to be implemented in a derived class, because the answer depends on the printing method (e.g. (a+b)/c needs brackets when printed like this, but does not need brackets when printed as {a+b}{c}).

Implements cadabra::DisplayBase.

void DisplayTerminal::print_arrowlike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_children	(	std::ostream &	str,
		Ex::iterator	it,
		int	skip = `0`
	)

private

void DisplayTerminal::print_closing_bracket	(	std::ostream &	str,
		str_node::bracket_t	br,
		str_node::parent_rel_t	pr
	)

private

void DisplayTerminal::print_commalike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_commutator	(	std::ostream &	str,
		Ex::iterator	it,
		bool	comm
	)

private

void DisplayTerminal::print_components	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_equalitylike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_fraclike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_intlike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_multiplier	(	std::ostream &	str,
		Ex::iterator	it,
		int	mult = `1`
	)

private

void DisplayTerminal::print_opening_bracket	(	std::ostream &	str,
		str_node::bracket_t	br,
		str_node::parent_rel_t	pr
	)

private

void DisplayTerminal::print_other	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_parent_rel	(	std::ostream &	str,
		str_node::parent_rel_t	pr,
		bool	first
	)

private

void DisplayTerminal::print_powlike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

void DisplayTerminal::print_productlike	(	std::ostream &	str,
		Ex::iterator	it,
		const std::string &	inbetween
	)

private

Printing members for various standard constructions, e.g.

print as a list, or as a decorated symbol with super/subscripts etc. The names reflect the structure of the output, not necessarily the meaning or name of the object that is being printed.

void DisplayTerminal::print_sumlike	(	std::ostream &	str,
		Ex::iterator	it
	)

private

Member Data Documentation

int cadabra::DisplayTerminal::bracket_level =0

private

std::map<std::string, std::string> cadabra::DisplayTerminal::greekmap

private

std::map<std::string, std::string> cadabra::DisplayTerminal::symmap

private

bool cadabra::DisplayTerminal::use_unicode

protected

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

core/DisplayTerminal.hh
core/DisplayTerminal.cc

Description

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation