jazz_elements::ConfigFile Class Reference

A configuration file as a key/value store. More...

#include <utils.h>

Public Member Functions
	ConfigFile (const char *input_file_name)
bool	load_config (const char *input_file_name)
int	num_keys ()
bool	get_key (const char *key, int &value)
bool	get_key (const char *key, double &value)
bool	get_key (const char *key, std::string &value)
void	debug_put (const std::string key, const std::string val)

Private Attributes
std::map< std::string, std::string >	config
	The configuration key/value store.

Detailed Description

A configuration file as a key/value store.

The configuration is loaded when constructing the object and available for reading as int, double or string via get_key().

The input file format removes anything to the right of a // as a remark. It uses a single equal (=) character to separate the key from the value. It also performs a very simple form of quote replacement using CleanConfigArgument().

Constructor & Destructor Documentation

ConfigFile()

jazz_elements::ConfigFile::ConfigFile

(

const char *

input_file_name

)

Build a ConfigFile by calling load_config()

Parameters

input_file_name

The input file name containing a configuration

It returns nothing. Check num_keys() for errors.

Member Function Documentation

load_config()

bool jazz_elements::ConfigFile::load_config

(

const char *

input_file_name

)

Load a configuration from a file.

Configuration is stored in: map<string, string> config which is private and read using the function get_key().

Parameters

input_file_name

The input file name containing a configuration

Returns

true if some keys were read. (There is no systematic error checking.)

num_keys()

int jazz_elements::ConfigFile::num_keys

(

)

Get the number of known configuration keys.

Returns

The number of configuration keys read from the file when constructing the object. Zero means some failure.

get_key() [1/3]

bool jazz_elements::ConfigFile::get_key	(	const char *	key,
		int &	value
	)

Get the value for an existing configuration key.

Parameters

key	The configuration key to be searched.
value	Value to be returned only when the function returns true.

Returns

True when the key exists and can be returned with the specific (overloaded) type.

get_key() [2/3]

bool jazz_elements::ConfigFile::get_key	(	const char *	key,
		double &	value
	)

Get the value for an existing configuration key.

Parameters

key	The configuration key to be searched.
value	Value to be returned only when the function returns true.

Returns

True when the key exists and can be returned with the specific (overloaded) type.

get_key() [3/3]

bool jazz_elements::ConfigFile::get_key	(	const char *	key,
		std::string &	value
	)

Get the value for an existing configuration key.

Parameters

key	The configuration key to be searched.
value	Value to be returned only when the function returns true.

Returns

True when the key exists and can be returned with the specific (overloaded) type.

debug_put()

void jazz_elements::ConfigFile::debug_put	(	const std::string	key,
		const std::string	val
	)

DEBUG ONLY function: Set a config key manually.

Parameters

key	The configuration key to be set.
val	New value of the key as a string (also valid for int and double if the string can be converted).

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

• utils.h
• utils.cpp