mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
642 lines
18 KiB
C++
642 lines
18 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
| Copyright (C) 2011-2016 OpenFOAM Foundation
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Class
|
|
Foam::token
|
|
|
|
Description
|
|
A token holds an item read from Istream.
|
|
|
|
SourceFiles
|
|
tokenI.H
|
|
token.C
|
|
tokenIO.C
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#ifndef token_H
|
|
#define token_H
|
|
|
|
#include "label.H"
|
|
#include "uLabel.H"
|
|
#include "scalar.H"
|
|
#include "word.H"
|
|
#include "InfoProxy.H"
|
|
#include "refCount.H"
|
|
#include "typeInfo.H"
|
|
|
|
#define NoHashTableC
|
|
#include "runTimeSelectionTables.H"
|
|
|
|
#include <iostream>
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
|
|
// Forward declarations
|
|
|
|
class token;
|
|
|
|
Istream& operator>>(Istream& is, token& t);
|
|
Ostream& operator<<(Ostream& os, const token& t);
|
|
|
|
|
|
/*---------------------------------------------------------------------------*\
|
|
Class token Declaration
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
class token
|
|
{
|
|
public:
|
|
|
|
//- Enumeration defining the types of token.
|
|
// Since these values are also used to tag content in Pstream,
|
|
// the maximum number of types is limited to 30.
|
|
enum tokenType
|
|
{
|
|
UNDEFINED = 0, //!< An undefined token-type
|
|
|
|
// Fundamental types
|
|
BOOL, //!< boolean type
|
|
FLAG, //!< stream flag (1-byte bitmask)
|
|
PUNCTUATION, //!< single character punctuation
|
|
LABEL, //!< label (integer) type
|
|
FLOAT_SCALAR, //!< float (single-precision) type
|
|
DOUBLE_SCALAR, //!< double (double-precision) type
|
|
|
|
// Pointer types
|
|
WORD, //!< Contents represent a Foam::word
|
|
STRING, //!< Contents represent a Foam::string
|
|
VARIABLE, //!< Contents are a Foam::string representing a
|
|
//!< dictionary \c $variable expansion
|
|
VERBATIMSTRING, //!< Contents are a Foam::string representing verbatim
|
|
//!< content
|
|
COMPOUND, //!< Compound type such as \c List\<label\> etc.
|
|
|
|
ERROR //!< A token error encountered
|
|
};
|
|
|
|
|
|
//- Stream or output control flags (1-byte width)
|
|
enum flagType
|
|
{
|
|
NO_FLAG = 0, //!< No flags
|
|
ASCII = 1, //!< ASCII-mode stream
|
|
BINARY = 2, //!< BINARY-mode stream
|
|
};
|
|
|
|
|
|
//- Standard punctuation tokens (a character)
|
|
enum punctuationToken
|
|
{
|
|
NULL_TOKEN = '\0',
|
|
SPACE = ' ',
|
|
TAB = '\t',
|
|
NL = '\n',
|
|
|
|
END_STATEMENT = ';', //!< End entry [#isseparator]
|
|
BEGIN_LIST = '(', //!< Begin list [#isseparator]
|
|
END_LIST = ')', //!< End list [#isseparator]
|
|
BEGIN_SQR = '[', //!< Begin dimensions [#isseparator]
|
|
END_SQR = ']', //!< End dimensions [#isseparator]
|
|
BEGIN_BLOCK = '{', //!< Begin block [#isseparator]
|
|
END_BLOCK = '}', //!< End block [#isseparator]
|
|
COLON = ':', //!< Colon [#isseparator]
|
|
COMMA = ',', //!< Comma [#isseparator]
|
|
HASH = '#',
|
|
ATSYM = '@',
|
|
SQUOTE = '\'', //!< Single quote
|
|
DQUOTE = '"', //!< Double quote
|
|
|
|
BEGIN_STRING = DQUOTE, //!< Double quote for begin string
|
|
END_STRING = DQUOTE, //!< Double quote for end string
|
|
|
|
ASSIGN = '=', //!< Assignment/equals [#isseparator]
|
|
ADD = '+', //!< Addition [#isseparator]
|
|
SUBTRACT = '-', //!< Substract or start of negative number
|
|
MULTIPLY = '*', //!< Multiply [#isseparator]
|
|
DIVIDE = '/' //!< Divide [#isseparator]
|
|
};
|
|
|
|
|
|
//- Abstract base class for complex tokens
|
|
class compound
|
|
:
|
|
public refCount
|
|
{
|
|
bool empty_;
|
|
|
|
//- No copy construct
|
|
compound(const compound&) = delete;
|
|
|
|
//- No copy assignment
|
|
compound& operator=(const compound&) = delete;
|
|
|
|
public:
|
|
|
|
//- Runtime type information
|
|
TypeName("compound");
|
|
|
|
//- Declare run-time constructor selection table
|
|
declareRunTimeSelectionTable
|
|
(
|
|
autoPtr,
|
|
compound,
|
|
Istream,
|
|
(Istream& is),
|
|
(is)
|
|
);
|
|
|
|
|
|
// Constructors
|
|
|
|
//- Construct null
|
|
compound()
|
|
:
|
|
empty_(false)
|
|
{}
|
|
|
|
|
|
// Selectors
|
|
|
|
//- Select null constructed
|
|
static autoPtr<compound> New(const word& type, Istream& is);
|
|
|
|
//- Return true if name is a known (registered) compound type
|
|
static bool isCompound(const word& name);
|
|
|
|
|
|
//- Destructor
|
|
virtual ~compound() = default;
|
|
|
|
|
|
// Member Functions
|
|
|
|
bool empty() const
|
|
{
|
|
return empty_;
|
|
}
|
|
|
|
bool& empty()
|
|
{
|
|
return empty_;
|
|
}
|
|
|
|
virtual label size() const = 0;
|
|
|
|
virtual void write(Ostream& os) const = 0;
|
|
|
|
|
|
// Operators
|
|
|
|
//- Output operator
|
|
friend Ostream& operator<<(Ostream& os, const compound& ct);
|
|
};
|
|
|
|
|
|
//- A templated class for holding compound tokens
|
|
template<class T>
|
|
class Compound
|
|
:
|
|
public token::compound,
|
|
public T
|
|
{
|
|
public:
|
|
|
|
//- Runtime type information
|
|
TypeName("Compound<T>");
|
|
|
|
Compound(Istream& is)
|
|
:
|
|
T(is)
|
|
{}
|
|
|
|
label size() const
|
|
{
|
|
return T::size();
|
|
}
|
|
|
|
void write(Ostream& os) const
|
|
{
|
|
operator<<(os, static_cast<const T&>(*this));
|
|
}
|
|
};
|
|
|
|
|
|
//- Static undefined token
|
|
static const token undefinedToken;
|
|
|
|
|
|
private:
|
|
|
|
//- A %union of token types
|
|
union content
|
|
{
|
|
// Fundamental values. Largest first for any {} initialization.
|
|
int64_t int64Val;
|
|
int32_t int32Val;
|
|
|
|
int flagVal; // bitmask - stored as int, not enum
|
|
punctuationToken punctuationVal;
|
|
label labelVal;
|
|
floatScalar floatVal;
|
|
doubleScalar doubleVal;
|
|
|
|
// Pointers
|
|
word* wordPtr;
|
|
string* stringPtr;
|
|
mutable compound* compoundPtr;
|
|
};
|
|
|
|
|
|
// Private data
|
|
|
|
//- The data content (as a union).
|
|
// For memory alignment this should appear as the first member.
|
|
content data_;
|
|
|
|
//- The token type
|
|
tokenType type_;
|
|
|
|
//- Line number in the file the token was read from
|
|
label lineNumber_;
|
|
|
|
|
|
// Private Member Functions
|
|
|
|
//- Set as UNDEFINED and zero the union content without any checking
|
|
inline void setUndefined();
|
|
|
|
//- Clear any allocated storage (word or string) and set to UNDEFINED
|
|
inline void clear();
|
|
|
|
// Parse error, expected 'expected', found ...
|
|
void parseError(const char* expected) const;
|
|
|
|
|
|
public:
|
|
|
|
// Static data members
|
|
|
|
static const char* const typeName;
|
|
|
|
|
|
// Constructors
|
|
|
|
//- Construct null
|
|
inline constexpr token() noexcept;
|
|
|
|
//- Copy construct
|
|
inline token(const token& t);
|
|
|
|
//- Move construct. The original token is left as UNDEFINED.
|
|
inline token(token&& t);
|
|
|
|
//- Construct punctuation character token
|
|
inline explicit token(punctuationToken p);
|
|
|
|
//- Construct label token
|
|
inline explicit token(const label val);
|
|
|
|
//- Construct floatScalar token
|
|
inline explicit token(const floatScalar val);
|
|
|
|
//- Construct doubleScalar token
|
|
inline explicit token(const doubleScalar val);
|
|
|
|
//- Construct word token by copying word contents
|
|
inline explicit token(const word& w);
|
|
|
|
//- Construct string token by copying string contents
|
|
inline explicit token(const string& str);
|
|
|
|
|
|
//- Construct punctuation character token
|
|
inline token(punctuationToken p, const label lineNumber);
|
|
|
|
//- Construct label token
|
|
inline token(const label val, const label lineNumber);
|
|
|
|
//- Construct floatScalar token
|
|
inline token(const floatScalar val, const label lineNumber);
|
|
|
|
//- Construct doubleScalar token
|
|
inline token(const doubleScalar val, const label lineNumber);
|
|
|
|
//- Construct word token by copying word contents
|
|
inline token(const word& w, const label lineNumber);
|
|
|
|
//- Construct string token by copying string contents
|
|
inline token(const string& str, const label lineNumber);
|
|
|
|
//- Construct from Istream
|
|
token(Istream& is);
|
|
|
|
|
|
//- Destructor
|
|
inline ~token();
|
|
|
|
|
|
// Static Member Functions
|
|
|
|
//- Create a bool token.
|
|
inline static token boolean(bool on);
|
|
|
|
//- Create a token with stream flags, no sanity check
|
|
//
|
|
// \param bitmask the flags to set
|
|
inline static token flag(int bitmask);
|
|
|
|
//- True if the character is a punctuation separator (eg, in ISstream).
|
|
// Since it could also start a number, SUBTRACT is not included as
|
|
// a separator.
|
|
//
|
|
// \param c the character to test, passed as int for consistency with
|
|
// isdigit, isspace etc.
|
|
inline static bool isseparator(int c);
|
|
|
|
|
|
// Member functions
|
|
|
|
// Status
|
|
|
|
//- Return the name of the token type
|
|
word name() const;
|
|
|
|
//- Return the token type
|
|
inline tokenType type() const;
|
|
|
|
//- Change the token type, for similar types.
|
|
// This can be used to change between string-like variants
|
|
// (eg, STRING, VARIABLE, VERBATIMSTRING)
|
|
// To change types entirely (eg, STRING to DOUBLE_SCALAR),
|
|
// use the corresponding assignment operator.
|
|
//
|
|
// \return true if the change was successful or no change was required
|
|
inline bool setType(const tokenType variant);
|
|
|
|
//- The line number for the token
|
|
inline label lineNumber() const;
|
|
|
|
//- The line number for the token
|
|
inline label& lineNumber();
|
|
|
|
//- True if token is not UNDEFINED or ERROR
|
|
inline bool good() const;
|
|
|
|
//- True if token is UNDEFINED
|
|
inline bool undefined() const;
|
|
|
|
//- True if token is ERROR
|
|
inline bool error() const;
|
|
|
|
//- True if token is BOOL
|
|
inline bool isBool() const;
|
|
|
|
//- True if token is FLAG
|
|
inline bool isFlag() const;
|
|
|
|
//- True if token is PUNCTUATION
|
|
inline bool isPunctuation() const;
|
|
|
|
//- True if token is PUNCTUATION and isseparator
|
|
inline bool isSeparator() const;
|
|
|
|
//- True if token is LABEL
|
|
inline bool isLabel() const;
|
|
|
|
//- True if token is FLOAT_SCALAR
|
|
inline bool isFloatScalar() const;
|
|
|
|
//- True if token is DOUBLE_SCALAR
|
|
inline bool isDoubleScalar() const;
|
|
|
|
//- True if token is FLOAT_SCALAR or DOUBLE_SCALAR
|
|
inline bool isScalar() const;
|
|
|
|
//- True if token is LABEL, FLOAT_SCALAR or DOUBLE_SCALAR
|
|
inline bool isNumber() const;
|
|
|
|
//- True if token is WORD
|
|
inline bool isWord() const;
|
|
|
|
//- True if token is STRING, VARIABLE or VERBATIMSTRING
|
|
inline bool isString() const;
|
|
|
|
//- True if token is VARIABLE
|
|
inline bool isVariable() const;
|
|
|
|
//- True if token is COMPOUND
|
|
inline bool isCompound() const;
|
|
|
|
|
|
// Access
|
|
|
|
//- Return boolean token value.
|
|
// Report FatalIOError and return false if token is not BOOL
|
|
inline bool boolToken() const;
|
|
|
|
//- Return flag bitmask value.
|
|
// Report FatalIOError and return NO_FLAG if token is not FLAG
|
|
inline int flagToken() const;
|
|
|
|
//- Return punctuation character.
|
|
// Report FatalIOError and return \b \\0 if token is not PUNCTUATION
|
|
inline punctuationToken pToken() const;
|
|
|
|
//- Return label value.
|
|
// Report FatalIOError and return \b 0 if token is not LABEL
|
|
inline label labelToken() const;
|
|
|
|
//- Return float value.
|
|
// Report FatalIOError and return \b 0.0 if token is not FLOAT_SCALAR
|
|
inline floatScalar floatScalarToken() const;
|
|
|
|
//- Return double value.
|
|
// Report FatalIOError and return \b 0.0 if token is not DOUBLE_SCALAR
|
|
inline doubleScalar doubleScalarToken() const;
|
|
|
|
//- Return float or double value.
|
|
// Report FatalIOError and return \b 0.0 if token is not a
|
|
// FLOAT_SCALAR or DOUBLE_SCALAR
|
|
inline scalar scalarToken() const;
|
|
|
|
//- Return label, float or double value.
|
|
// Report FatalIOError and return \b 0.0 if token is not a
|
|
// LABEL, FLOAT_SCALAR or DOUBLE_SCALAR
|
|
inline scalar number() const;
|
|
|
|
//- Return const reference to the word contents.
|
|
// Report FatalIOError and return \b "" if token is not a WORD
|
|
inline const word& wordToken() const;
|
|
|
|
//- Return const reference to the string contents.
|
|
// Report FatalIOError and return \b "" if token is not a
|
|
// STRING, VARIABLE or VERBATIMSTRING
|
|
inline const string& stringToken() const;
|
|
|
|
//- Read access for compound token
|
|
inline const compound& compoundToken() const;
|
|
|
|
//- Return reference to compound token and decrease its internal
|
|
//- refCound accordingly.
|
|
// The Istream is used for reference error messages only.
|
|
compound& transferCompoundToken(const Istream& is);
|
|
|
|
|
|
// Edit
|
|
|
|
//- Clear token and set to be in an error state.
|
|
inline void setBad();
|
|
|
|
//- Swap token contents: type, data, line-number
|
|
inline void swap(token& tok);
|
|
|
|
|
|
// Info
|
|
|
|
//- Return info proxy for printing token information to a stream
|
|
InfoProxy<token> info() const
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
|
|
// Member operators
|
|
|
|
// Assignment
|
|
|
|
//- Copy assign
|
|
inline void operator=(const token& tok);
|
|
|
|
//- Move assign
|
|
inline void operator=(token&& tok);
|
|
|
|
//- Copy assign from punctuation
|
|
inline void operator=(const punctuationToken p);
|
|
|
|
//- Copy assign from label
|
|
inline void operator=(const label val);
|
|
|
|
//- Copy assign from float
|
|
inline void operator=(const floatScalar val);
|
|
|
|
//- Copy assign from double
|
|
inline void operator=(const doubleScalar val);
|
|
|
|
//- Copy assign from word
|
|
inline void operator=(const word& w);
|
|
|
|
//- Copy assign from string
|
|
inline void operator=(const string& str);
|
|
|
|
//- Move assign from word
|
|
inline void operator=(word&& w);
|
|
|
|
//- Move assign from string
|
|
inline void operator=(string&& str);
|
|
|
|
//- Assign compound with reference counting to token
|
|
inline void operator=(compound* compoundPtr);
|
|
|
|
|
|
//- Deprecated(2017-11) transfer word pointer to the token
|
|
// \deprecated(2017-11) - use move assign from word
|
|
inline void operator=(word* wordPtr);
|
|
|
|
//- Deprecated(2017-11) transfer string pointer to the token
|
|
// \deprecated(2017-11) - use move assign from string
|
|
inline void operator=(string* stringPtr);
|
|
|
|
|
|
// Equality
|
|
|
|
inline bool operator==(const token& t) const;
|
|
|
|
inline bool operator==(const punctuationToken p) const;
|
|
inline bool operator==(const label val) const;
|
|
inline bool operator==(const floatScalar val) const;
|
|
inline bool operator==(const doubleScalar val) const;
|
|
inline bool operator==(const word& w) const;
|
|
inline bool operator==(const string& str) const;
|
|
|
|
|
|
// Inequality
|
|
|
|
inline bool operator!=(const token& t) const;
|
|
inline bool operator!=(const punctuationToken p) const;
|
|
inline bool operator!=(const label val) const;
|
|
inline bool operator!=(const floatScalar val) const;
|
|
inline bool operator!=(const doubleScalar val) const;
|
|
inline bool operator!=(const word& w) const;
|
|
inline bool operator!=(const string& str) const;
|
|
|
|
|
|
// IOstream operators
|
|
|
|
friend Istream& operator>>(Istream& is, token& t);
|
|
friend Ostream& operator<<(Ostream& os, const token& t);
|
|
|
|
friend Ostream& operator<<(Ostream&, const punctuationToken&);
|
|
friend ostream& operator<<(ostream&, const punctuationToken&);
|
|
|
|
friend ostream& operator<<(ostream&, const InfoProxy<token>&);
|
|
};
|
|
|
|
|
|
Ostream& operator<<(Ostream&, const token::punctuationToken&);
|
|
ostream& operator<<(ostream&, const token::punctuationToken&);
|
|
Ostream& operator<<(Ostream&, const token::compound&);
|
|
|
|
ostream& operator<<(ostream&, const InfoProxy<token>&);
|
|
|
|
template<>
|
|
Ostream& operator<<(Ostream& os, const InfoProxy<token>& ip);
|
|
|
|
#define defineCompoundTypeName(Type, Name) \
|
|
defineTemplateTypeNameAndDebugWithName(token::Compound<Type>, #Type, 0);
|
|
|
|
#define addCompoundToRunTimeSelectionTable(Type, Name) \
|
|
token::compound::addIstreamConstructorToTable<token::Compound<Type>> \
|
|
add##Name##IstreamConstructorToTable_;
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
} // End namespace Foam
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
#include "tokenI.H"
|
|
#include "Istream.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
#endif
|
|
|
|
// ************************************************************************* //
|