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,

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;
   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()
 [1]    leaving g()
 [0]  leaving f()

Definition at line 66 of file PlayaTabs.hpp.

Constructor & Destructor Documentation

Tabs::Tabs ( bool  jump = true  ) 

Constructor increments tab level

Definition at line 10 of file PlayaTabs.cpp.

References myLevel_, and tabLevel().

Tabs::~Tabs (  ) 

Destructor decrements tab level

Definition at line 17 of file PlayaTabs.cpp.

References jump_, and tabLevel().

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 22 of file PlayaTabs.cpp.

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

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

static void Playa::Tabs::setTabSize ( int  ts  )  [inline, static]

Change the tab size. Default is 2.

Definition at line 82 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 85 of file PlayaTabs.hpp.

Referenced by print().

static int& Playa::Tabs::tabLevel (  )  [inline, static, private]

Definition at line 89 of file PlayaTabs.hpp.

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

static int& Playa::Tabs::tabSize (  )  [inline, static, private]

Definition at line 92 of file PlayaTabs.hpp.

Referenced by print(), and setTabSize().

Friends And Related Function Documentation

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

stream insertion operator for tab

Definition at line 103 of file PlayaTabs.hpp.

References print().

Member Data Documentation

bool Playa::Tabs::jump_ [private]

Definition at line 94 of file PlayaTabs.hpp.

Referenced by ~Tabs().

int Playa::Tabs::myLevel_ [private]

Definition at line 96 of file PlayaTabs.hpp.

Referenced by print(), and Tabs().

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