mazes::json_helper Class Reference

JSON helper class. More...

#include <json_helper.h>

Public Member Functions
	json_helper ()
	Default constructor.
	~json_helper ()
	Destructor.
	json_helper (const json_helper &other)
json_helper &	operator= (const json_helper &other)
	json_helper (json_helper &&other) noexcept=default
json_helper &	operator= (json_helper &&other) noexcept=default

Static Public Member Functions
static std::string	from (const std::unordered_map< std::string, std::string > &map, int pretty_print=4) noexcept
	Get the contents of a map as a string in JSON format.
static std::string	from (const std::vector< std::unordered_map< std::string, std::string > > &arr, int pretty_print=4) noexcept
	Get the contents of a vector of maps as a JSON string.
static bool	from (const std::string &s, std::unordered_map< std::string, std::string > &m) noexcept
	Parse and set a JSON string into a C++ map.
static bool	load (const std::string &filename, std::unordered_map< std::string, std::string > &m) noexcept
	Parse a JSON file into a C++ map from a file on disk.
static bool	from_array (const std::string &s, std::vector< std::unordered_map< std::string, std::string > > &vm) noexcept
	Parse a JSON array string into a vector of maps.
static bool	load_array (const std::string &filename, std::vector< std::unordered_map< std::string, std::string > > &vm) noexcept
	Load a JSON array file into a vector of maps.

Detailed Description

JSON helper class.

This class provides methods to convert a map of strings into a JSON string

Member Function Documentation

from() [1/3]

static bool mazes::json_helper::from ( const std::string & s, std::unordered_map< std::string, std::string > & m )

staticnoexcept

Parse and set a JSON string into a C++ map.

Parameters

s
m

Returns

success or failure on parse

from() [2/3]

static std::string mazes::json_helper::from ( const std::unordered_map< std::string, std::string > & map, int pretty_print = 4 )

staticnoexcept

Get the contents of a map as a string in JSON format.

Parameters

map
pretty_print	Number of spaces to use for indenting the JSON string

Returns

JSON string representation of the map

from() [3/3]

static std::string mazes::json_helper::from ( const std::vector< std::unordered_map< std::string, std::string > > & arr, int pretty_print = 4 )

staticnoexcept

Get the contents of a vector of maps as a JSON string.

Parameters

arr
pretty_print	Number of spaces to use for indenting the JSON string

Returns

JSON string representation of the vector of maps

from_array()

static bool mazes::json_helper::from_array ( const std::string & s, std::vector< std::unordered_map< std::string, std::string > > & vm )

staticnoexcept

Parse a JSON array string into a vector of maps.

Parameters

s	JSON string containing an array of objects
vm	Vector of maps to populate with parsed objects

Returns

success or failure on parse

load()

static bool mazes::json_helper::load ( const std::string & filename, std::unordered_map< std::string, std::string > & m )

staticnoexcept

Parse a JSON file into a C++ map from a file on disk.

Parameters

filename
m

Returns

load_array()

static bool mazes::json_helper::load_array ( const std::string & filename, std::vector< std::unordered_map< std::string, std::string > > & vm )

staticnoexcept

Load a JSON array file into a vector of maps.

Parameters

filename	Path to JSON file containing an array of objects
vm	Vector of maps to populate with parsed objects

Returns

success or failure on load/parse

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

• json_helper.h