ISstream Class Reference

Generic input stream using a standard (STL) stream. More...

Inheritance diagram for ISstream:
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Collaboration diagram for ISstream:
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Public Member Functions

 ISstream (std::istream &is, const string &streamName, IOstreamOption streamOpt=IOstreamOption())
 Construct wrapper around std::istream, set stream status. More...
 
 ISstream (std::istream &is, const string &streamName, IOstreamOption::streamFormat fmt, IOstreamOption::versionNumber ver=IOstreamOption::currentVersion, IOstreamOption::compressionType cmp=IOstreamOption::UNCOMPRESSED)
 Construct wrapper around std::istream, set stream status. More...
 
virtual ~ISstream ()=default
 Destructor. More...
 
virtual const fileNamename () const
 Return the name of the stream. More...
 
virtual fileNamename ()
 Return stream name for modification. More...
 
virtual ios_base::fmtflags flags () const
 Return flags of output stream. More...
 
bool seekCommentEnd_Cstyle ()
 Discard until end of C-style comment '*‍/'. More...
 
bool continueReadUntilRightBrace (std::string &str, const bool stripComments=true)
 
ISstreamget (char &c)
 Raw, low-level get character function. More...
 
int peek ()
 Raw, low-level peek function. More...
 
ISstreamgetLine (std::string &str, char delim='\n')
 Raw, low-level getline (until delimiter) into a string. More...
 
std::streamsize getLine (std::nullptr_t, char delim='\n')
 Low-level discard until delimiter. More...
 
ISstreamputback (const char c)
 Raw, low-level putback character function. More...
 
virtual Istreamread (token &t)
 Return next token from stream. More...
 
virtual Istreamread (char &c)
 Read a character. More...
 
virtual Istreamread (word &str)
 Read a word. More...
 
virtual Istreamread (string &str)
 Read a string (including enclosing double-quotes). More...
 
virtual Istreamread (label &val)
 Read a label. More...
 
virtual Istreamread (floatScalar &val)
 Read a floatScalar. More...
 
virtual Istreamread (doubleScalar &val)
 Read a doubleScalar. More...
 
virtual Istreamread (char *buf, std::streamsize count)
 Read binary block. More...
 
virtual IstreamreadRaw (char *data, std::streamsize count)
 Low-level raw binary read. More...
 
virtual bool beginRawRead ()
 Start of low-level raw binary read. More...
 
virtual bool endRawRead ()
 End of low-level raw binary read. More...
 
virtual void rewind ()
 Rewind the stream so that it may be read again. More...
 
virtual ios_base::fmtflags flags (const ios_base::fmtflags flags)
 Set stream flags. More...
 
virtual std::istream & stdStream ()
 Access to underlying std::istream. More...
 
virtual const std::istream & stdStream () const
 Const access to underlying std::istream. More...
 
virtual void print (Ostream &os) const
 Print stream description to Ostream. More...
 
- Public Member Functions inherited from Istream
 Istream (const Istream &)=default
 Copy construct. More...
 
virtual ~Istream ()=default
 Destructor. More...
 
 Istream (IOstreamOption streamOpt=IOstreamOption())
 
 Istream (IOstreamOption::streamFormat fmt, IOstreamOption::versionNumber ver=IOstreamOption::currentVersion, IOstreamOption::compressionType cmp=IOstreamOption::UNCOMPRESSED)
 Construct with format, version (compression) More...
 
const tokenpeekBack () const noexcept
 Examine putback token without removing it. More...
 
bool peekBack (token &tok)
 Fetch putback token without removing it. More...
 
void putBack (const token &tok)
 Put back a token. Only a single put back is permitted. More...
 
bool getBack (token &tok)
 Get the put-back token if there is one. More...
 
bool readBegin (const char *funcName)
 Begin read of data chunk, starts with '('. More...
 
bool readEnd (const char *funcName)
 End read of data chunk, ends with ')'. More...
 
char readBeginList (const char *funcName)
 Begin read of list data, starts with '(' or '{'. More...
 
char readEndList (const char *funcName)
 End read of list data, ends with ')' or '}'. More...
 
Istreamoperator() () const
 Return a non-const reference to const Istream. More...
 
- Public Member Functions inherited from IOstream
 IOstream (const IOstream &)=default
 Copy construct. More...
 
virtual ~IOstream ()=default
 Destructor. More...
 
 IOstream (IOstreamOption streamOpt=IOstreamOption())
 
 IOstream (IOstreamOption::streamFormat fmt, IOstreamOption::versionNumber ver, IOstreamOption::compressionType cmp=IOstreamOption::UNCOMPRESSED)
 Construct with format, version (compression) More...
 
fileName relativeName () const
 Return the name of the stream relative to the current case. More...
 
virtual bool check (const char *operation) const
 Check IOstream status for given operation. More...
 
bool fatalCheck (const char *operation) const
 Check IOstream status for given operation. More...
 
bool opened () const noexcept
 True if stream has been opened. More...
 
bool closed () const noexcept
 True if stream is closed. More...
 
bool good () const noexcept
 True if next operation might succeed. More...
 
bool eof () const noexcept
 True if end of input seen. More...
 
bool fail () const noexcept
 True if next operation will fail. More...
 
bool bad () const noexcept
 True if stream is corrupted. More...
 
 operator bool () const noexcept
 Return true if the stream has not failed. More...
 
bool operator! () const noexcept
 Return true if the stream has failed. More...
 
unsigned labelByteSize () const noexcept
 The sizeof (label) in bytes associated with the stream. More...
 
unsigned scalarByteSize () const noexcept
 The sizeof (scalar) in bytes associated with the stream. More...
 
void setLabelByteSize (unsigned nbytes) noexcept
 Set the sizeof (label) in bytes associated with the stream. More...
 
void setScalarByteSize (unsigned nbytes) noexcept
 Set the sizeof (scalar) in bytes associated with the stream. More...
 
template<class T = label>
std::enable_if< std::is_integral< T >::value, bool >::type checkLabelSize () const noexcept
 
template<class T = scalar>
std::enable_if< std::is_floating_point< T >::value, bool >::type checkScalarSize () const noexcept
 
label lineNumber () const noexcept
 Const access to the current stream line number. More...
 
label & lineNumber () noexcept
 Non-const access to the current stream line number. More...
 
label lineNumber (const label num) noexcept
 Set the stream line number. More...
 
void setEof () noexcept
 Set stream state as reached 'eof'. More...
 
void setFail () noexcept
 Set stream state as 'failed'. More...
 
void setBad ()
 Set stream state to be 'bad'. More...
 
ios_base::fmtflags setf (const ios_base::fmtflags f)
 Set flags of stream. More...
 
ios_base::fmtflags setf (const ios_base::fmtflags f, const ios_base::fmtflags mask)
 Set flags of given field of stream. More...
 
void unsetf (const ios_base::fmtflags f)
 Unset flags of stream. More...
 
void print (Ostream &os, const int streamState) const
 Print information about the stream state bits. More...
 
InfoProxy< IOstreaminfo () const
 Return info proxy. More...
 
- Public Member Functions inherited from IOstreamOption
constexpr IOstreamOption (streamFormat fmt=streamFormat::ASCII, compressionType comp=compressionType::UNCOMPRESSED) noexcept
 
constexpr IOstreamOption (streamFormat fmt, compressionType comp, versionNumber ver) noexcept
 Construct from components (format, compression, version) More...
 
constexpr IOstreamOption (streamFormat fmt, versionNumber ver, compressionType comp=compressionType::UNCOMPRESSED) noexcept
 Construct from components (format, version, compression) More...
 
 IOstreamOption (const IOstreamOption &opt, streamFormat fmt) noexcept
 Copy construct with change of format. More...
 
streamFormat format () const noexcept
 Get the current stream format. More...
 
streamFormat format (const streamFormat fmt) noexcept
 Set the stream format. More...
 
streamFormat format (const word &formatName)
 Set the stream format from string value. More...
 
compressionType compression () const noexcept
 Get the stream compression. More...
 
compressionType compression (const compressionType comp) noexcept
 Set the stream compression. More...
 
compressionType compression (const word &compName)
 Set the stream compression from string value. More...
 
versionNumber version () const noexcept
 Get the stream version. More...
 
versionNumber version (const versionNumber ver) noexcept
 Set the stream version. More...
 
versionNumber version (const token &tok)
 Set the stream version from token. More...
 

Additional Inherited Members

- Public Types inherited from IOstream
enum  streamAccess : char { CLOSED = 0, OPENED }
 Enumeration for stream open/closed state. More...
 
- Public Types inherited from IOstreamOption
enum  streamFormat : char { ASCII = 0, BINARY }
 Data format (ascii | binary) More...
 
enum  compressionType : char { UNCOMPRESSED = 0, COMPRESSED }
 Compression treatment (UNCOMPRESSED | COMPRESSED) More...
 
- Static Public Member Functions inherited from IOstream
static unsigned int defaultPrecision () noexcept
 Return the default precision. More...
 
static unsigned int defaultPrecision (unsigned int prec) noexcept
 Reset the default precision. More...
 
- Static Public Member Functions inherited from IOstreamOption
static streamFormat formatEnum (const word &formatName, const streamFormat deflt=streamFormat::ASCII)
 
static streamFormat formatEnum (const word &key, const dictionary &dict, const streamFormat deflt=streamFormat::ASCII)
 Failsafe construct streamFormat from optional dictionary lookup. More...
 
static compressionType compressionEnum (const word &compName, const compressionType deflt=compressionType::UNCOMPRESSED)
 The compression enum corresponding to the string. More...
 
static compressionType compressionEnum (const word &key, const dictionary &dict, const compressionType deflt=compressionType::UNCOMPRESSED)
 Failsafe construct compressionType from optional dictionary lookup. More...
 
- Static Public Attributes inherited from IOstream
static unsigned int precision_
 Default precision. More...
 
- Static Public Attributes inherited from IOstreamOption
static const Enum< streamFormatformatNames
 Stream format names (ascii, binary) More...
 
static const versionNumber currentVersion
 The current version number (2.0) More...
 
- Protected Member Functions inherited from Istream
bool hasPutback () const noexcept
 True if putback token is in use. More...
 
- Protected Member Functions inherited from IOstream
void setOpened () noexcept
 Set stream opened. More...
 
void setClosed () noexcept
 Set stream closed. More...
 
void setState (std::ios_base::iostate state) noexcept
 Set stream state. More...
 
void setGood () noexcept
 Set stream state to be good. More...
 
- Protected Attributes inherited from IOstream
std::ios_base::iostate ioState_
 Mirror of internal stream io state. More...
 
streamAccess openClosed_
 The stream open/closed state. More...
 
unsigned char sizeofLabel_
 The sizeof (label), possibly read from the header. More...
 
unsigned char sizeofScalar_
 The sizeof (scalar), possibly read from the header. More...
 
label lineNumber_
 The file line. More...
 
- Static Protected Attributes inherited from IOstream
static fileName staticName_
 Name for any generic stream - normally treat as readonly. More...
 

Detailed Description

Generic input stream using a standard (STL) stream.

Source files

Definition at line 55 of file ISstream.H.

Constructor & Destructor Documentation

◆ ISstream() [1/2]

ISstream ( std::istream &  is,
const string streamName,
IOstreamOption  streamOpt = IOstreamOption() 
)
inline

Construct wrapper around std::istream, set stream status.

Default stream options (ASCII, uncompressed)

Definition at line 32 of file ISstreamI.H.

◆ ISstream() [2/2]

Construct wrapper around std::istream, set stream status.

Definition at line 91 of file ISstream.H.

◆ ~ISstream()

virtual ~ISstream ( )
virtualdefault

Destructor.

Member Function Documentation

◆ name() [1/2]

virtual const fileName& name ( ) const
inlinevirtual

Return the name of the stream.

Useful for Fstream to return the filename

Reimplemented from IOstream.

Definition at line 113 of file ISstream.H.

Referenced by dynamicCode::copyAndFilter(), IStringStream::print(), ISstream::print(), decomposedBlockData::readBlock(), FIREMeshReader::readCells(), FIREMeshReader::readFaces(), decomposedBlockData::readHeader(), and FIRECore::readPoints().

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◆ name() [2/2]

virtual fileName& name ( )
inlinevirtual

Return stream name for modification.

Reimplemented from IOstream.

Definition at line 119 of file ISstream.H.

◆ flags() [1/2]

std::ios_base::fmtflags flags ( ) const
virtual

Return flags of output stream.

Implements IOstream.

Reimplemented in dummyISstream.

Definition at line 1078 of file ISstream.C.

◆ seekCommentEnd_Cstyle()

bool seekCommentEnd_Cstyle ( )

Discard until end of C-style comment '*‍/'.

Returns
False if stream exhausted before finding the comment end

Definition at line 79 of file ISstream.C.

References Foam::constant::universal::c, and ISstream::get().

Referenced by Foam::readUntilBalancedDelimiter(), and Foam::readVariable().

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◆ continueReadUntilRightBrace()

bool continueReadUntilRightBrace ( std::string &  str,
const bool  stripComments = true 
)

Raw, low-level get into a string. Continues reading after an initial left-brace until it finds the matching closing right-brace.

Tracks balanced pairs, trims out leading/trailing whitespace.

Returns
False if stream exhausted before finding closing brace

Definition at line 513 of file ISstream.C.

References token::BEGIN_BLOCK, token::END_BLOCK, and Foam::readUntilBalancedDelimiter().

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◆ get()

Foam::ISstream & get ( char &  c)
inline

Raw, low-level get character function.

Definition at line 56 of file ISstreamI.H.

References Foam::constant::universal::c, IOstream::good(), IOstream::lineNumber_, and IOstream::setState().

Referenced by Foam::ReadHex(), Foam::readToNewline(), Foam::readUntilBalancedDelimiter(), Foam::readVariable(), Foam::readVerbatim(), and ISstream::seekCommentEnd_Cstyle().

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◆ peek()

int peek ( )
inline

Raw, low-level peek function.

Does not remove the character from the stream. Returns the next character in the stream or EOF if the end of file is read.

Definition at line 70 of file ISstreamI.H.

Referenced by ABAQUSCore::readHelper::readElements(), ABAQUSCore::readHelper::readPoints(), ABAQUSCore::readHelper::readSurfaceElements(), and Foam::readVariable().

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◆ getLine() [1/2]

◆ getLine() [2/2]

std::streamsize getLine ( std::nullptr_t  ,
char  delim = '\n' 
)
inline

Low-level discard until delimiter.

Returns
the number of characters extracted

Definition at line 90 of file ISstreamI.H.

References Foam::BitOps::count(), and Foam::max().

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◆ putback()

Foam::ISstream & putback ( const char  c)
inline

Raw, low-level putback character function.

Definition at line 106 of file ISstreamI.H.

References Foam::constant::universal::c.

Referenced by Foam::readUntilBalancedDelimiter(), Foam::readVariable(), and Foam::readVerbatim().

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◆ read() [1/8]

◆ read() [2/8]

Foam::Istream & read ( char &  c)
virtual

Read a character.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 808 of file ISstream.C.

References Foam::constant::universal::c.

◆ read() [3/8]

Foam::Istream & read ( word str)
virtual

Read a word.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 815 of file ISstream.C.

References token::BEGIN_LIST, Foam::constant::universal::c, token::END_LIST, Foam::endl(), errLen, Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, Foam::PtrListOps::get(), IOWarningInFunction, Foam::nl, and word::valid().

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◆ read() [4/8]

Foam::Istream & read ( string str)
virtual

Read a string (including enclosing double-quotes).

Backslashes are retained, except when escaping double-quotes and an embedded newline character.

Implements Istream.

Reimplemented in ensightReadFile, and dummyISstream.

Definition at line 895 of file ISstream.C.

References Foam::constant::universal::c, token::DQUOTE, errLen, Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, Foam::PtrListOps::get(), and token::NL.

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◆ read() [5/8]

Foam::Istream & read ( label &  val)
virtual

Read a label.

Implements Istream.

Reimplemented in ensightReadFile, and dummyISstream.

Definition at line 996 of file ISstream.C.

◆ read() [6/8]

Foam::Istream & read ( floatScalar val)
virtual

Read a floatScalar.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 1004 of file ISstream.C.

◆ read() [7/8]

Foam::Istream & read ( doubleScalar val)
virtual

Read a doubleScalar.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 1012 of file ISstream.C.

◆ read() [8/8]

Foam::Istream & read ( char *  buf,
std::streamsize  count 
)
virtual

Read binary block.

Implements Istream.

Reimplemented in ensightReadFile, and dummyISstream.

Definition at line 1020 of file ISstream.C.

References Foam::BitOps::count().

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◆ readRaw()

Foam::Istream & readRaw ( char *  data,
std::streamsize  count 
)
virtual

Low-level raw binary read.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 1030 of file ISstream.C.

References Foam::BitOps::count(), and Istream::read().

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◆ beginRawRead()

bool beginRawRead ( )
virtual

Start of low-level raw binary read.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 1039 of file ISstream.C.

References Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, and format().

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◆ endRawRead()

bool endRawRead ( )
virtual

End of low-level raw binary read.

Implements Istream.

Reimplemented in dummyISstream.

Definition at line 1055 of file ISstream.C.

◆ rewind()

void rewind ( )
virtual

Rewind the stream so that it may be read again.

Implements Istream.

Reimplemented in UIListStream, IListStream, dummyISstream, and IFstream.

Definition at line 1064 of file ISstream.C.

Referenced by IStringStream::reset(), IFstream::rewind(), and simpleObjectRegistry::setValues().

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◆ flags() [2/2]

std::ios_base::fmtflags flags ( const ios_base::fmtflags  flags)
virtual

Set stream flags.

Implements IOstream.

Reimplemented in dummyISstream.

Definition at line 1084 of file ISstream.C.

References f().

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◆ stdStream() [1/2]

virtual std::istream& stdStream ( )
inlinevirtual

Access to underlying std::istream.

Reimplemented in IFstream.

Definition at line 216 of file ISstream.H.

Referenced by FIRECore::getFireLabel(), FIRECore::getFirePoint(), FIRECore::getFireString(), and Foam::skipComments().

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◆ stdStream() [2/2]

virtual const std::istream& stdStream ( ) const
inlinevirtual

Const access to underlying std::istream.

Reimplemented in IFstream.

Definition at line 222 of file ISstream.H.

◆ print()

void print ( Ostream os) const
virtual

Print stream description to Ostream.

Reimplemented from IOstream.

Reimplemented in UIListStream, IListStream, IStringStream, and IFstream.

Definition at line 36 of file SstreamsPrint.C.

References ISstream::name(), os(), and IOstream::print().

Referenced by IFstream::print(), and IStringStream::print().

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