Playa::Tabs Class Reference

List of all members.

Public Member Functions
	Tabs (bool jump=true)
	~Tabs ()
void	print (std::ostream &os) const
Static Public Member Functions
static void	setTabSize (int ts)
static bool &	showDepth ()
Static Private Member Functions
static int &	tabLevel ()
static int &	tabSize ()
Private Attributes
bool	jump_
int	myLevel_
Related Functions
(Note that these are not member functions.)
std::ostream &	operator<< (std::ostream &os, const Tabs &t)

---

Detailed Description

Tabbing utility for output. Constructing a new Tabs object automatically increments the number of tabs to be written. When the Tabs object goes out of scope, the original tabs level is restored.

The tab size and character can be specified through the setTabSize() and setTabChar() methods, for example,

 Tabs::setTabChar('*');
 Tabs::setTabSize(4);

The tab character can be set on an object-by-object basis through a constructor argument.

By default, a header giving the depth of tabs is written to each line; this can simplify scanning by eye for when a given tab level is reached. This header can be turned off by calling

 Tabs::showDepth() = false;

Example: the code

 void f()
 {
   Tabs tab;
   cout << tab << "in f()" << std::endl;
   g();
   cout << tab << "leaving f()" << std::endl;
 }

 void g()
 {
   Tabs tab0;
   cout << tab0 << "in g()" << std::endl;
   for (int i=0; i<3; i++)
     {
       Tabs tab1();
       cout << tab1 << "i=" << i << std::endl;
     }
   cout << tab0 << "leaving g()" << std::endl;
 }

writes the following output

 [0]  in f()
 [1]    in g()
 [2]------i=0
 [2]------i=1
 [2]------i=2
 [1]    leaving g()
 [0]  leaving f()

Definition at line 103 of file PlayaTabs.hpp.

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Constructor & Destructor Documentation

Tabs::Tabs

(

bool

jump = true

)

Constructor increments tab level

Definition at line 47 of file PlayaTabs.cpp.

References myLevel_, and tabLevel().

Tabs::~Tabs

(

)

Destructor decrements tab level

Definition at line 54 of file PlayaTabs.cpp.

References jump_, and tabLevel().

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Member Function Documentation

void Tabs::print

(

std::ostream &

os

)

const

Print to stream. This method is usually not called directly, as tabs will usually be written with the insertion operator

Definition at line 59 of file PlayaTabs.cpp.

References myLevel_, showDepth(), tabLevel(), and tabSize().

Referenced by Sundance::ChainRuleEvaluator::internalEval(), Sundance::UnaryMinusEvaluator::internalEval(), Sundance::SymbolicFuncElementEvaluator::internalEval(), and operator<<().

static void Playa::Tabs::setTabSize

(

int

ts

)

[inline, static]

Change the tab size. Default is 2.

Definition at line 119 of file PlayaTabs.hpp.

References tabSize().

static bool& Playa::Tabs::showDepth

(

)

[inline, static]

Indicate whether to print the tab depth as a header for each line.

Definition at line 122 of file PlayaTabs.hpp.

Referenced by print().

static int& Playa::Tabs::tabLevel

(

)

[inline, static, private]

Definition at line 126 of file PlayaTabs.hpp.

Referenced by print(), Tabs(), and ~Tabs().

static int& Playa::Tabs::tabSize

(

)

[inline, static, private]

Definition at line 129 of file PlayaTabs.hpp.

Referenced by print(), and setTabSize().

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Friends And Related Function Documentation

std::ostream & operator<<	(	std::ostream &	os,
		const Tabs &	t
	)		[related]

stream insertion operator for tab

Definition at line 140 of file PlayaTabs.hpp.

References print().

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Member Data Documentation

bool Playa::Tabs::jump_ [private]

Definition at line 131 of file PlayaTabs.hpp.

Referenced by ~Tabs().

int Playa::Tabs::myLevel_ [private]

Definition at line 133 of file PlayaTabs.hpp.

Referenced by print(), and Tabs().