Json::StyledStreamWriter Class Reference

Writes a Value in JSON format in a human friendly way, to a stream rather than to a string. More...

#include <writer.h>

Public Member Functions
	StyledStreamWriter (std::string indentation="\t")
void	write (std::ostream &out, const Value &root)
	Serialize a Value in JSON format. More...
	~StyledStreamWriter ()

Private Types
typedef std::vector< std::string >	ChildValues

Private Member Functions
bool	hasCommentForValue (const Value &value)
void	indent ()
bool	isMultineArray (const Value &value)
void	pushValue (const std::string &value)
void	unindent ()
void	writeArrayValue (const Value &value)
void	writeCommentAfterValueOnSameLine (const Value &root)
void	writeCommentBeforeValue (const Value &root)
void	writeIndent ()
void	writeValue (const Value &value)
void	writeWithIndent (const std::string &value)

Static Private Member Functions
static std::string	normalizeEOL (const std::string &text)

Private Attributes
bool	addChildValues_
ChildValues	childValues_
std::ostream *	document_
std::string	indentation_
std::string	indentString_
int	rightMargin_

Detailed Description

Writes a Value in JSON format in a human friendly way, to a stream rather than to a string.

The rules for line break and indent are as follow:

• Object value:
  • if empty then print {} without indent and line break
  • if not empty the print '{', line break & indent, print one value per line and then unindent and line break and print '}'.
• Array value:
  • if empty then print [] without indent and line break
  • if the array contains no object value, empty array or some other value types, and all the values fit on one lines, then print the array on a single line.
  • otherwise, it the values do not fit on one line, or the array contains object or non empty array, then print one value per line.

If the Value have comments then they are outputed according to their CommentPlacement.

Parameters

indentation

Each level will be indented by this amount extra.

See also

Reader, Value, Value::setComment()

Definition at line 119 of file writer.h.

Member Typedef Documentation

ChildValues

typedef std::vector<std::string> Json::StyledStreamWriter::ChildValues

private

Definition at line 146 of file writer.h.

Constructor & Destructor Documentation

StyledStreamWriter()

Json::StyledStreamWriter::StyledStreamWriter

(

std::string

indentation = "\t"

)

~StyledStreamWriter()

Json::StyledStreamWriter::~StyledStreamWriter ( )

inline

Definition at line 122 of file writer.h.

{}

Member Function Documentation

hasCommentForValue()

bool Json::StyledStreamWriter::hasCommentForValue ( const Value &  value )

private

indent()

void Json::StyledStreamWriter::indent ( )

private

Referenced by ntuplePrintersDiff.TrackingParticlePrinter::_parentageChain(), ntuplePrintersDiff.SeedPrinter::printHits(), ntuplePrintersDiff.TrackPrinter::printHits(), and ntuplePrintersDiff.TrackingParticlePrinter::printTrackingParticle().

isMultineArray()

bool Json::StyledStreamWriter::isMultineArray ( const Value &  value )

private

normalizeEOL()

static std::string Json::StyledStreamWriter::normalizeEOL ( const std::string &  text )

staticprivate

pushValue()

void Json::StyledStreamWriter::pushValue ( const std::string &  value )

private

unindent()

void Json::StyledStreamWriter::unindent ( )

private

write()

void Json::StyledStreamWriter::write	(	std::ostream &	out,
		const Value &	root
	)

Serialize a Value in JSON format.

Parameters

out	Stream to write to. (Can be ostringstream, e.g.)
root	Value to serialize.

Note

There is no point in deriving from Writer, since write() should not return a value.

Referenced by pkg.AbstractPkg::generate().

writeArrayValue()

void Json::StyledStreamWriter::writeArrayValue ( const Value &  value )

private

writeCommentAfterValueOnSameLine()

void Json::StyledStreamWriter::writeCommentAfterValueOnSameLine ( const Value &  root )

private

writeCommentBeforeValue()

void Json::StyledStreamWriter::writeCommentBeforeValue ( const Value &  root )

private

writeIndent()

void Json::StyledStreamWriter::writeIndent ( )

private

writeValue()

void Json::StyledStreamWriter::writeValue ( const Value &  value )

private

writeWithIndent()

void Json::StyledStreamWriter::writeWithIndent ( const std::string &  value )

private

Member Data Documentation

addChildValues_

bool Json::StyledStreamWriter::addChildValues_

private

Definition at line 153 of file writer.h.

childValues_

ChildValues Json::StyledStreamWriter::childValues_

private

Definition at line 148 of file writer.h.

document_

std::ostream* Json::StyledStreamWriter::document_

private

Definition at line 149 of file writer.h.

indentation_

std::string Json::StyledStreamWriter::indentation_

private

Definition at line 152 of file writer.h.

indentString_

std::string Json::StyledStreamWriter::indentString_

private

Definition at line 150 of file writer.h.

rightMargin_

int Json::StyledStreamWriter::rightMargin_

private

Definition at line 151 of file writer.h.