Provides access to sequential ASCII stream I/O. More...

#include <TextFile.h>

Inheritance diagram for Isis::TextFile:

Collaboration diagram for Isis::TextFile:

Public Member Functions
	TextFile ()
	Constructs an empty TextFile object.

	TextFile (const QString &filename, const char openmode="input", const char extension="")
	Constructs a TextFile object and opens the specified file (including path).

	TextFile (const char filename, const char openmode, std::vector< QString > &lines, const int &maxLinesToReadWrite=0, const bool skipComments=true)
	Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

	TextFile (const QString &filename, const char *openmode, std::vector< QString > &lines, const int &maxLinesToReadWrite=0, const bool skipComments=true)
	Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

	TextFile (const char filename, const char openmode, QString *lines, const int &maxLinesToReadWrite, const bool skipComments=true)
	Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

	TextFile (const QString &filename, const char openmode, QString lines, const int &maxLinesToReadWrite, const bool skipComments=true)
	Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

	~TextFile ()
	Closes file (if still open). Destroys the TextFile object.

void	Open (const QString &filename, const char openmode="input", const char extension="")
	Opens a text file.

void	Open (const char filename, const char openmode="input", const char *extension="")

bool	OpenChk (bool bailIfNotOpen=false)

void	Rewind ()
	Sets Read / Write pointer to begining of opened file.

void	Close ()
	Closes file. Called automatically by TextFile destructor.

void	GetFile (std::vector< QString > &lines, const int &maxLinesToRead=0, const bool skipComments=true)

void	GetFile (QString *lines, const int &maxLinesToRead, const bool skipComments=true)

void	PutFile (std::vector< QString > &lines, const int &maxLinesToWrite=0)

void	PutFile (const QString *lines, const int &maxLinesToWrite)

bool	GetLine (QString &line, const bool skipComments=true)
	Gets next line from file.

bool	GetLineNoFilter (QString &line)
	Gets next NON-COMMENT line from file.

bool	GetLine (const bool skipComments=true)
	Gets next line from file.

bool	GetLineNoFilter ()
	Gets next NON-COMMENT line from file.

void	PutLine (const QString &line)
	Writes string to file and appends a 'newline' string.

void	PutLine (const char *line="")
	Writes char string to file and appends a 'newline' string.

void	PutLineComment (const QString &line)
	Writes string to file, prepends a 'comment' string and appends a 'newline' string.

void	PutLineComment (const char *line="")
	Writes char string to file, prepends a 'comment' string and appends a 'newline' string.

QString	GetComment ()

QString	GetNewLine ()

void	SetComment (const char *commentString="#")
	Sets the 'comment' string.

void	SetNewLine (const char *newLineString="\n")
	Sets the 'newline' string.

int	LineCount (const int &maxLinesToRead=0)
	Counts number of lines in file.

std::streamsize	Size ()
	Counts number of bytes in file.

Protected Member Functions
bool	p_GetLine (QString &line, bool chkComment)
	Gets next line from file.

Protected Attributes
std::fstream	p_stream
	File stream handle.

int	p_openmode
	openmode of file: Input, Output, Overwrite, Append

QString	p_filename
	FileName of the opened file.

QString	p_commentString
	'comment' string used by GetLine and PutLineComment

QString	p_newLineString
	'newline' string used by PutLine and PutLineComment

Detailed Description

Provides access to sequential ASCII stream I/O.

Provides access to sequential ASCII stream I/O. Checks for errors in opening, reading, and writing ASCII files. Can check for 'comment lines' while reading a text file.

Author: 2003-08-29 Glenn Bennett

History:

2005-02-16 Elizabeth Ribelin - Modified file to support Doxygen documentation

2010-03-30 Mackenzie Boyd - Modified open method append option to create the file if it doesn't exist, changed file existence check to use FileName class.

2011-08-08 Jeannie Backer - Modified unitTest to use $temporary variable instead of /tmp directory

Todo:: 2005-02-16 Glenn Bennett - add coded and implementation examples, and finish documentation

Definition at line 54 of file TextFile.h.

Constructor & Destructor Documentation

Isis::TextFile::TextFile ( )

Constructs an empty TextFile object.

Definition at line 38 of file TextFile.cpp.

Isis::TextFile::TextFile	(	const QString &	filename,
		const char *	openmode = `"input"`,
		const char *	extension = `""`
	)

Constructs a TextFile object and opens the specified file (including path).

Parameters

filename	FileName (including path) to be opened by TextFile object.
openmode	Open Mode of file opened by TextFile object. InputOpens file for Input: Read Only, Fails if file does not exist OutputOpens file for Output: Read / Write - Creates file, Fails if file exists. OverwriteOpens file for Output: Read / Write - Creates file, Truncates if file exists. AppendOpens file for Append: Read / Write- Creates file, Appends if file exists. Defaults to "input"
extension	Extension to be added to filename (added only if not already on filename). Defaults to ""

Definition at line 57 of file TextFile.cpp.

Isis::TextFile::TextFile	(	const char *	filename,
		const char *	openmode,
		std::vector< QString > &	lines,
		const int &	maxLinesToReadWrite = `0`,
		const bool	skipComments = `true`
	)

Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

Parameters

filename	FileName (including path) to be opened by TextFile object.
openmode	Open Mode of file opened by TextFile object. InputOpens file for Input: Read Only, Fails if file does not exist OutputOpens file for Output: Read / Write - Creates file, Fails if file exists. OverwriteOpens file for Output: Read / Write - Creates file, Truncates if file exists. AppendOpens file for Append: Read / Write - Creates file, Appends if file exists. Defaults to "input"
lines
maxLinesToReadWrite	Limits the maximum lines read or written; 0=read entire file or write entire vectorDefaults to 0
skipComments	Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Definition at line 125 of file TextFile.cpp.

Isis::TextFile::TextFile	(	const QString &	filename,
		const char *	openmode,
		std::vector< QString > &	lines,
		const int &	maxLinesToReadWrite = `0`,
		const bool	skipComments = `true`
	)

Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

Parameters

filename	FileName (including path) to be opened by TextFile object.
openmode	Open Mode of file opened by TextFile object. InputOpens file for Input: Read Only, Fails if file does not exist OutputOpens file for Output: Read / Write - Creates file, Fails if file exists. OverwriteOpens file for Output: Read / Write - Creates file, Truncates if file exists. AppendOpens file for Append: Read / Write - Creates file, Appends if file exists. Defaults to "input"
lines	IString Vector to fill if reading or put to file if writing
maxLinesToReadWrite	Limits the maximum lines read or written; 0=read entire file or write entire vectorDefaults to 0
skipComments	Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Definition at line 88 of file TextFile.cpp.

Isis::TextFile::TextFile	(	const char *	filename,
		const char *	openmode,
		QString *	lines,
		const int &	maxLinesToReadWrite,
		const bool	skipComments = `true`
	)

Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

Parameters

filename	FileName (including path) to be opened by TextFile object.
openmode	Open Mode of file opened by TextFile object. InputOpens file for Input: Read Only, Fails if file does not exist OutputOpens file for Output: Read / Write - Creates file, Fails if file exists. OverwriteOpens file for Output: Read / Write - Creates file, Truncates if file exists. AppendOpens file for Append: Read / Write - Creates file, Appends if file exists. Defaults to "input"
lines
maxLinesToReadWrite	Limits the maximum lines read or written; 0=read entire file or write entire vectorDefaults to 0
skipComments	Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Definition at line 194 of file TextFile.cpp.

Isis::TextFile::TextFile	(	const QString &	filename,
		const char *	openmode,
		QString *	lines,
		const int &	maxLinesToReadWrite,
		const bool	skipComments = `true`
	)

Constructs a TextFile object and opens the specified file (including path), reads or writes file, leaves file open for further use of the rest of the methods.

Parameters

filename	FileName (including path) to be opened by TextFile object.
openmode	Open Mode of file opened by TextFile object. InputOpens file for Input: Read Only, Fails if file does not exist OutputOpens file for Output: Read / Write - Creates file, Fails if file exists. OverwriteOpens file for Output: Read / Write - Creates file, Truncates if file exists. AppendOpens file for Append: Read / Write - Creates file, Appends if file exists. Defaults to "input"
lines
maxLinesToReadWrite	Limits the maximum lines read or written; 0=read entire file or write entire vectorDefaults to 0
skipComments	Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Definition at line 156 of file TextFile.cpp.

Isis::TextFile::~TextFile ( )

Closes file (if still open). Destroys the TextFile object.

Definition at line 202 of file TextFile.cpp.

Member Function Documentation

void Isis::TextFile::Close ( )

Closes file. Called automatically by TextFile destructor.

Definition at line 342 of file TextFile.cpp.

Referenced by Isis::Pipeline::Run(), and Isis::CisscalFile::~CisscalFile().

bool Isis::TextFile::GetLine	(	QString &	line,
		const bool	skipComments = `true`
	)

Gets next line from file.

Returns True if read a line, False if End Of File.

Parameters

line	Line read from file, with newline removed.
skipComments	Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Returns: bool

Definition at line 427 of file TextFile.cpp.

Referenced by Isis::Environment::isisVersion(), Isis::UserInterface::loadBatchList(), Isis::ImportPdsTable::loadTable(), and Isis::MosaicMainWindow::openList().

bool Isis::TextFile::GetLine ( const bool skipComments = true )

Gets next line from file.

Returns True if read a line, False if End Of File.

Parameters

skipComments Controls whether comments lines are filtered; true=filter, false=return any line read from fileDefaults to true

Returns: bool

Definition at line 440 of file TextFile.cpp.

bool Isis::TextFile::GetLineNoFilter ( QString & line )

Gets next NON-COMMENT line from file.

Returns True if read a line, False if End Of File. See SetComment method.

Parameters

line	Line read from file, with newline removed.

Returns: bool

Definition at line 453 of file TextFile.cpp.

bool Isis::TextFile::GetLineNoFilter ( )

Gets next NON-COMMENT line from file.

Returns True if read a line, False if End Of File. See SetComment method.

Returns: bool

Definition at line 463 of file TextFile.cpp.

int Isis::TextFile::LineCount ( const int & maxLinesToRead = 0 )

Counts number of lines in file.

Parameters

maxLinesToRead Limits lines counted - intended for large files. 0=count all lines. n=count up to and including n lines; if file longer than n lines, returns n+1. Defaults to 0

Returns: streamsize

Definition at line 623 of file TextFile.cpp.

Referenced by Isis::UserInterface::loadBatchList().

void Isis::TextFile::Open	(	const QString &	filename,
		const char *	openmode = `"input"`,
		const char *	extension = `""`
	)

Opens a text file.

Parameters

filename	FileName (including path) to be opened.
openmode	Open Mode of file to be opened. There are four options, "input", "output", "overwrite", and "append". "input" opens with in fstream option, "output" opens with in, out, and trunc fstream options and verifies the file does not exist, "overwrite" opens with in, out, and trunc fstream options, and "append" opens with in, out, and ate(at end) fstream options, "append" will open with in and out options if the file does not exist.
extension	Extension to be added to filename (added only if not already on filename). Defaults to ""

Exceptions

Isis::IException::Programmer
Isis::IException::Io	- output file already exists
Isis::IException::Io	- unable to open file

Definition at line 233 of file TextFile.cpp.

References _FILEINFO_, and Isis::IString::DownCase().

Referenced by Isis::UserInterface::loadBatchList().

bool Isis::TextFile::p_GetLine	(	QString &	line,
		bool	chkComment
	)

protected

Gets next line from file.

Returns True if read a line, False if End Of File.

Parameters

line	Line read from file, with newline removed.
chkComment	True=Skip Comment Lines, False=Return All Lines.

Returns: bool

Exceptions

Isis::IException::Io - error reading text file

Definition at line 479 of file TextFile.cpp.

References _FILEINFO_.

void Isis::TextFile::PutLine ( const QString & line )

Writes string to file and appends a 'newline' string.

See SetNewLine method.

Parameters

line	IString to be written to file. Defaults to ""

Definition at line 524 of file TextFile.cpp.

Referenced by Isis::Pipeline::Run().

void Isis::TextFile::PutLine ( const char * line = "" )

Writes char string to file and appends a 'newline' string.

See SetNewLine method.

Parameters

line	Char string to be written to file.Defaults to ""

Exceptions

Isis::IException::Io	- error writing text to file
Isis::IException::Programmer	- input is read only text file, cannot write to file

Definition at line 538 of file TextFile.cpp.

References _FILEINFO_.

void Isis::TextFile::PutLineComment ( const QString & line )

Writes string to file, prepends a 'comment' string and appends a 'newline' string.

See SetComment method and SetNewLine method.

Parameters

line	IString to be written to file.Defaults to ""

Definition at line 565 of file TextFile.cpp.

void Isis::TextFile::PutLineComment ( const char * line = "" )

Writes char string to file, prepends a 'comment' string and appends a 'newline' string.

See SetComment method and SetNewLine method.

Parameters

line	Char string to be written to file.Defaults to ""

Definition at line 575 of file TextFile.cpp.

void Isis::TextFile::Rewind ( )

Sets Read / Write pointer to begining of opened file.

Definition at line 333 of file TextFile.cpp.

void Isis::TextFile::SetComment ( const char * commentString = "#" )

Sets the 'comment' string.

Default = '#' See ReadFilter method. Skips lines that begin with this string. See PutLineComment method. Prepends 'comment' string to output line.

Parameters

commentString The string of characters to be used for 'comment' lines. Defaults to "#"

Definition at line 593 of file TextFile.cpp.

void Isis::TextFile::SetNewLine ( const char * newLineString = "\n" )

Sets the 'newline' string.

Default = '
'. See PutLine and PutLineComment methods. Appends 'newline' string to output line.

Parameters

newLineString The string of characters to be used for 'comment' lines. Defaults to "\n"

Definition at line 609 of file TextFile.cpp.

streamsize Isis::TextFile::Size ( )

Counts number of bytes in file.

Returns: streamsize

Definition at line 668 of file TextFile.cpp.

Member Data Documentation

QString Isis::TextFile::p_commentString

protected

 'comment' string used by GetLine and

PutLineComment

Definition at line 61 of file TextFile.h.

QString Isis::TextFile::p_filename

protected

FileName of the opened file.

Definition at line 60 of file TextFile.h.

Referenced by Isis::CisscalFile::p_GetLine().

QString Isis::TextFile::p_newLineString

protected

 'newline' string used by PutLine and

PutLineComment

Definition at line 63 of file TextFile.h.

int Isis::TextFile::p_openmode

protected

               openmode of file: Input, Output,

Overwrite, Append

Definition at line 58 of file TextFile.h.

std::fstream Isis::TextFile::p_stream

protected

File stream handle.

Definition at line 57 of file TextFile.h.

Referenced by Isis::CisscalFile::p_GetLine().

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

src/base/objs/TextFile/TextFile.h
src/base/objs/TextFile/TextFile.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation