Matrix Science Mascot Parser toolkit
 
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ms_databases Class Reference

An instance of this class represents the Databases section of mascot.dat. More...

#include <ms_databaseoptions.hpp>

Inheritance diagram for ms_databases:
Collaboration diagram for ms_databases:

Public Member Functions

 ms_databases ()
 Default constructor.
 
 ms_databases (const ms_databases &src)
 Copying constructor.
 
 ~ms_databases ()
 Destructor.
 
void appendDatabase (const ms_databaseoptions *item)
 Add one more database definition at the end of the list.
 
void appendProperty (const char *name, const char *value, const char *delimiter, const bool bFirstPlace=false)
 Adds a new property with the given parameters.
 
void appendText (const char *line, const bool bFirstPlace=false)
 Adds a new non-parsed property.
 
void clearDatabases ()
 Deletes all database definitions.
 
void copyFrom (const ms_customproperty *src)
 Copies all properties and comments from another instance.
 
void copyFrom (const ms_databases *right)
 Can be used to create a copy of another object.
 
void defaultValues ()
 Initialises the instance with default values.
 
bool deleteDatabaseByName (const char *name)
 Remove a database from the list in memory.
 
bool deleteDatabaseByNumber (const int num)
 Remove a database from the list in memory.
 
void delNonEmpty ()
 Deletes all non-comment properties.
 
void delProp (const char *name)
 Deletes all properties with the specified name.
 
void delPropByNumber (const int index)
 Deletes a single property with the specified number only.
 
void delPropStart (const char *nameBeginning)
 Deletes all properties whose names start with the given string.
 
int findDatabase (const char *dbName, const bool searchInactive=false) const
 Finds a database with the specified name and returns its number to access.
 
int findProperty (const char *name, const int startFrom=0) const
 Searches the list for a property with the given name.
 
int findPropertyBeginning (const char *nameBeginning, const int startFrom=0) const
 Searches the list for a property with the partially matching name.
 
const ms_databaseoptionsgetDatabase (const int index) const
 Returns a database definition by its number.
 
std::string getDefaultDelimiter () const
 Return current default delimiter string used for parsing/storing properties.
 
std::string getDelimiterByNumber (const int index) const
 Returns a specific delimiter used for the property.
 
int getNumberOfDatabases () const
 Returns the total number of database definitions including inactive (commented out) databases.
 
int getNumberOfProperties () const
 Returns a total number of property/comment entries.
 
std::string getPreceedingComments () const
 Returns any comments preceeding the section.
 
std::string getPropertyName (const int index) const
 Returns a property name for a given index.
 
std::string getPropValStringByName (const char *name) const
 Retrieves property value by name.
 
std::string getPropValStringByNumber (const int index) const
 Retrieves property raw text values by number.
 
bool isSectionAvailable () const
 Check if the section has been actually read form the file or have to be saved.
 
ms_databasesoperator= (const ms_databases &right)
 Assignment operator for C++ client applications.
 
void setDefaultDelimiter (const char *delim)
 Allows to set a specific delimiter string to be used when no property-specific delimiter is supplied.
 
void setPreceedingComments (const std::string &comments)
 Sets any comments preceeding the section.
 
void setPropertyName (const int index, const char *name)
 Changes name of the property with the given index.
 
void setPropValBoolByName (const char *name, const bool value, const bool bFirstPlace=false)
 Changes a boolean value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValCharByName (const char *name, const char value, const bool bFirstPlace=false)
 Changes a single character value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValFloatByName (const char *name, const double value, const bool bFirstPlace=false)
 Changes an floating point value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValInt64ByName (const char *name, const INT64 value, const bool bFirstPlace=false)
 Changes a long 64-bit integer value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValIntByName (const char *name, const int value, const bool bFirstPlace=false)
 Changes an integer value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValStringByName (const char *name, const char *value, const bool bFirstPlace=false)
 Changes a string value of the first entry with the given name or creates a new property if it is not found.
 
void setPropValStringByNumber (const int index, const char *value)
 Changes an string value of an existing property with the given index.
 
void setSectionAvailable (const bool value)
 Changes availability of the section, i.e. whether it should be saved in the file.
 
bool uncommentProp (const int index, const char *delimeter=0)
 Uncomments a line in the configuration file.
 
bool updateDatabaseByName (const char *name, const ms_databaseoptions db)
 Update the information for a specific database.
 
bool updateDatabaseByNumber (const int num, const ms_databaseoptions db)
 Update the information for a specific database.
 

Detailed Description

An instance of this class represents the Databases section of mascot.dat.

An instance is created and populated with database entries within ms_datfile class. It contains active database definitions as well as inactive ones. When traversing the list of database with getNumberOfDatabases() and getDatabase() members, don't forget to check each entry for being active. Otherwise one or all database parameters might be invalid and, therefore, must be ignored. In a text-based configuration file a database definition can be made inactive by commenting it out.

For detailed information on any of the options please consult Mascot manual.

Also get yourselves acquainted with the base class ms_customproperty. It facilitates the following tasks:

  • retrieving an unsupported property
  • retrieving raw/text/xml property representation
  • checking for existence of a certain property rather than dealing with its default value
  • accessing commented lines in a section

More functionality is described in details in the documentation for the class.

Examples
config_mascotdat.cpp.

Member Function Documentation

◆ appendDatabase()

void appendDatabase ( const ms_databaseoptions item)

Add one more database definition at the end of the list.

Parameters
itemvalid pointer to a ms_databaseoptions object

◆ appendProperty()

void appendProperty ( const char *  name,
const char *  value,
const char *  delimiter,
const bool  bFirstPlace = false 
)
inherited

Adds a new property with the given parameters.

Parameters
namea property name to use.
valuea property value to use.
delimitera specific delimiter or an empty string for a default one to be used.
bFirstPlaceforces a new property to be put on top of the list.

◆ appendText()

void appendText ( const char *  l,
const bool  bFirstPlace = false 
)
inherited

Adds a new non-parsed property.

All property elements will be retrieved from the first parameter. Before calling this method, a specific default delimiter can be set using setDefaultDelimiter().

Parameters
lraw text representation of the property to be parsed.
bFirstPlaceforces a new property to be put on top of the list.

◆ deleteDatabaseByName()

bool deleteDatabaseByName ( const char *  name)

Remove a database from the list in memory.

If the database name is specified incorrectly FALSE value is returned and no action is performed.

Parameters
namethe database name.
Returns
TRUE if the database has been found and deleted and FALSE otherwise.

◆ deleteDatabaseByNumber()

bool deleteDatabaseByNumber ( const int  num)

Remove a database from the list in memory.

If the database index is specified incorrectly FALSE value is returned and no action is performed.

Parameters
numzero-based database index.
Returns
TRUE if the database has been deleted and FALSE otherwise.

◆ delProp()

void delProp ( const char *  str)
inherited

Deletes all properties with the specified name.

Parameters
strProperty name to find a match and then delete.

◆ delPropStart()

void delPropStart ( const char *  str)
inherited

Deletes all properties whose names start with the given string.

Parameters
strBeginning a first part of the property name to delete.

◆ findDatabase()

int findDatabase ( const char *  dbName,
const bool  searchInactive = false 
) const

Finds a database with the specified name and returns its number to access.

Note that only active database will be returned (unless searchInactive is set to TRUE). If no database have been found the returning value will be -1.

Parameters
dbNamea database name to find.
searchInactiveset this parameter to TRUE if you want to search both active and inactive databases.
Returns
the database index if found and -1 if not.

◆ findProperty()

int findProperty ( const char *  name,
const int  startFrom = 0 
) const
inherited

Searches the list for a property with the given name.

If no property found with the given name -1 will be returned. There may be several property entries in the list with the same name.

Parameters
namea property name to be found.
startFroma minimal property index to start search from.
Returns
a property index or -1 if no property found.

◆ findPropertyBeginning()

int findPropertyBeginning ( const char *  nameBeginning,
const int  startFrom = 0 
) const
inherited

Searches the list for a property with the partially matching name.

If no property found with the given name part -1 will be returned. There may be several property entries in the list whose names start with the given string.

Parameters
nameBeginningfirst part of a property name to be found.
startFroma minimal property index to start search from.
Returns
a property index or -1 if no property found.

◆ getDatabase()

const ms_databaseoptions * getDatabase ( const int  index) const

Returns a database definition by its number.

Use this member to retrieve a database definition with index from 0 to (getNumberOfDatabases()-1).

Parameters
indexnumber of database to look for
Returns
pointer to a ms_databaseoptions object
Examples
config_mascotdat.cpp.

◆ getDefaultDelimiter()

std::string getDefaultDelimiter ( ) const
inherited

Return current default delimiter string used for parsing/storing properties.

Returns
default delimiter

◆ getDelimiterByNumber()

std::string getDelimiterByNumber ( const int  index) const
inherited

Returns a specific delimiter used for the property.

Parameters
indexIndex for which to get a delimiter
Returns
corresponding delimiter

◆ getNumberOfDatabases()

int getNumberOfDatabases ( ) const

Returns the total number of database definitions including inactive (commented out) databases.

By default the list of database is empty unless explicitly populated.

Returns
Number of databases
Examples
config_mascotdat.cpp.

◆ getNumberOfProperties()

int getNumberOfProperties ( ) const
inherited

Returns a total number of property/comment entries.

Returns
Number of property/comment entries

◆ getPreceedingComments()

std::string getPreceedingComments ( ) const
inherited

Returns any comments preceeding the section.

Sections in the mascot.dat file may have comments preceeding them. In most cases, these comments need to stay 'attached' to the section.

Multiple line comments are supported by having a single string with newline characters

See also
setPreceedingComments()
Returns
any comments preceeding the section

◆ getPropertyName()

std::string getPropertyName ( const int  index) const
inherited

Returns a property name for a given index.

Parameters
indexproperty number from 0 to (getNumberOfProperties()-1).
Returns
Rroperty name of an empty string for comments.

◆ getPropValStringByName()

std::string getPropValStringByName ( const char *  name) const
inherited

Retrieves property value by name.

Don't use this method for comments as they all have empty name. Also note that there might be several entries corresponding to the same name . – only the first value will be returned. If in doubt use findProperty() and getPropValStringByNumber() instead.

Parameters
nameName for which to get a property value
Returns
corresponding property value

◆ getPropValStringByNumber()

std::string getPropValStringByNumber ( const int  index) const
inherited

Retrieves property raw text values by number.

Parameters
indexIndex for which to get a property value
Returns
corresponding property value

◆ setDefaultDelimiter()

void setDefaultDelimiter ( const char *  delim)
inherited

Allows to set a specific delimiter string to be used when no property-specific delimiter is supplied.

Parameters
delimString to set the default delimiter

◆ setPreceedingComments()

void setPreceedingComments ( const std::string &  comments)
inherited

Sets any comments preceeding the section.

Sections in the mascot.dat file may have comments preceeding them. In most cases, these comments need to stay 'attached' to the section.

Multiple line comments are supported by having a single string with newline characters

See also
getPreceedingComments()
Parameters
commentsany comments preceeding the section

◆ setPropertyName()

void setPropertyName ( const int  index,
const char *  name 
)
inherited

Changes name of the property with the given index.

Parameters
indexproperty number from 0 to (getNumberOfProperties()-1).
namenew name to be given to the property.

◆ setPropValBoolByName()

void setPropValBoolByName ( const char *  name,
const bool  value,
const bool  bFirstPlace = false 
)
inherited

Changes a boolean value of the first entry with the given name or creates a new property if it is not found.

A new value will be converted into 1 (for TRUE) or 0 (for FALSE) character.

Parameters
namea name of the property to find or add.
valuea new boolean value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValCharByName()

void setPropValCharByName ( const char *  name,
const char  value,
const bool  bFirstPlace = false 
)
inherited

Changes a single character value of the first entry with the given name or creates a new property if it is not found.

Parameters
namea name of the property to find or add.
valuea new single character value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValFloatByName()

void setPropValFloatByName ( const char *  name,
const double  value,
const bool  bFirstPlace = false 
)
inherited

Changes an floating point value of the first entry with the given name or creates a new property if it is not found.

Parameters
namea name of the property to find or add.
valuea new floating point value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValInt64ByName()

void setPropValInt64ByName ( const char *  name,
const INT64  value,
const bool  bFirstPlace = false 
)
inherited

Changes a long 64-bit integer value of the first entry with the given name or creates a new property if it is not found.

Parameters
namea name of the property to find or add.
valuea new long 64-bit integer value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValIntByName()

void setPropValIntByName ( const char *  name,
const int  value,
const bool  bFirstPlace = false 
)
inherited

Changes an integer value of the first entry with the given name or creates a new property if it is not found.

Parameters
namea name of the property to find or add.
valuea new integer value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValStringByName()

void setPropValStringByName ( const char *  name,
const char *  value,
const bool  bFirstPlace = false 
)
inherited

Changes a string value of the first entry with the given name or creates a new property if it is not found.

Parameters
namea name of the property to find or add.
valuea new string value for the property.
bFirstPlaceif not found a new property can be put on top of the list.

◆ setPropValStringByNumber()

void setPropValStringByNumber ( const int  index,
const char *  str 
)
inherited

Changes an string value of an existing property with the given index.

Parameters
indexan index of an existing property.
strString value for the property.

◆ uncommentProp()

bool uncommentProp ( const int  index,
const char *  delimeter = 0 
)
inherited

Uncomments a line in the configuration file.

Removes a # and any white space. Finds the delimeter and extracts the property name and value.

Parameters
indexmust be a value between 0 and getNumberOfProperties().
delimeterwill often be a space. If not supplied, the default delimeter will be used.
Returns
true if the delimiter was found, false otherwise

◆ updateDatabaseByName()

bool updateDatabaseByName ( const char *  name,
const ms_databaseoptions  db 
)

Update the information for a specific database.

If a database with the supplied name cannot be found no database will be updated and the returning value will be FALSE.

Parameters
namea database name to find.
dba database object to copy the content from.
Returns
TRUE if the database has been successfully found and updated and FALSE otherwise.

◆ updateDatabaseByNumber()

bool updateDatabaseByNumber ( const int  num,
const ms_databaseoptions  db 
)

Update the information for a specific database.

If the index is out of bounds no database will be updated and the returning value will be FALSE.

Parameters
numa zero-based index of the database to update.
dba database object to copy the content from.
Returns
TRUE if the database index indicates a valid database in the internal list and FALSE otherwise.

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