faker::string Namespace Reference

Classes
struct	CharCount

Typedefs
using	GuaranteeMap = std::map<char, CharCount>

Enumerations
enum class	StringCasing { Mixed , Lower , Upper }

Functions
FAKER_CXX_EXPORT bool	isValidGuarantee (GuaranteeMap &guarantee, std::set< char > &targetCharacters, unsigned length)
	Checks if the given guarantee map is valid for given targetCharacters and length.
FAKER_CXX_EXPORT std::string	generateAtLeastString (const GuaranteeMap &guarantee)
	Generates the least required string for a given guarantee map.
template<typename T = std::mt19937>
std::string	uuid (RandomGenerator< T > gen=RandomGenerator< std::mt19937 >{})
	Generates an Universally Unique Identifier with version 4.
FAKER_CXX_EXPORT std::string	sample (unsigned length=10)
	Returns a string containing UTF-16 chars between 33 and 125 (`!` to `}`).
FAKER_CXX_EXPORT std::string	sample (GuaranteeMap &&guarantee, unsigned length=10)
	Returns a string containing UTF-16 chars between 33 and 125 (`!` to `}`).
FAKER_CXX_EXPORT std::string	symbol (unsigned minLength=1, unsigned maxLength=10)
	Returns a string containing "~`!@#$%^&*()_-+={[}]|:;\"'<,>.?/".
FAKER_CXX_EXPORT std::string	fromCharacters (const std::string &characters, unsigned length=1)
	Generates a string consisting of given characters.
FAKER_CXX_EXPORT std::string	fromCharacters (GuaranteeMap &&guarantee, const std::string &characters, unsigned length=1)
	Generates a string consisting of given characters.
FAKER_CXX_EXPORT std::string	alpha (unsigned length=1, StringCasing casing=StringCasing::Mixed, const std::string &excludeCharacters="")
	Generates a string consisting of letters in the English alphabet.
FAKER_CXX_EXPORT std::string	alpha (GuaranteeMap &&guarantee, unsigned length=1, StringCasing casing=StringCasing::Mixed)
	Generates a string consisting of letters in the English alphabet.
FAKER_CXX_EXPORT std::string	alphanumeric (unsigned length=1, StringCasing casing=StringCasing::Mixed, const std::string &excludeCharacters="")
	Generates a string consisting of alpha characters and digits.
FAKER_CXX_EXPORT std::string	alphanumeric (GuaranteeMap &&guarantee, unsigned length=1, StringCasing casing=StringCasing::Mixed)
	Generates a string consisting of alpha characters and digits.
FAKER_CXX_EXPORT std::string	numeric (unsigned length=1, bool allowLeadingZeros=true)
	Generates a given length string of digits.
FAKER_CXX_EXPORT std::string	numeric (GuaranteeMap &&guarantee, unsigned length=1, bool allowLeadingZeros=true)
	Generates a given length string of digits.
FAKER_CXX_EXPORT std::string	nanoId (int length)
	Generates a unique, URL-safe string identifier of the specified length.
FAKER_CXX_EXPORT std::string	nanoId ()
	Generates a unique, URL-safe string identifier of default length.
FAKER_CXX_EXPORT std::string	nanoId (int minLength, int maxLength)
	Generates a unique, URL-safe string identifier of random length within a specified range.

Typedef Documentation

GuaranteeMap

using faker::string::GuaranteeMap = std::map<char, CharCount>

Specify the count required for specific chars

Enumeration Type Documentation

StringCasing

enum class faker::string::StringCasing

strong

Enumerator
Mixed
Lower
Upper

Function Documentation

alpha() [1/2]

FAKER_CXX_EXPORT std::string faker::string::alpha	(	GuaranteeMap &&	guarantee,
		unsigned	length = 1,
		StringCasing	casing = StringCasing::Mixed )

Generates a string consisting of letters in the English alphabet.

Parameters

guarantee	A map specifying char count constraints if any
length	The number of characters to generate. Defaults to `1`.
casing	The casing of the characters. Defaults to `StringCasingMixed`.

Returns

Alpha string.

faker::string::alpha({}) // "b"
faker::string::alpha({{'A',{2,2}}, 5, StringCasing::Upper) // "DACAC"
faker::string::alpha({{'a',{0,0}},{'b',{3,3}},{'c', {0,2}}}, 10, StringCasing::Lower) // "bicnmmkbbp"

alpha() [2/2]

FAKER_CXX_EXPORT std::string faker::string::alpha	(	unsigned	length = 1,
		StringCasing	casing = StringCasing::Mixed,
		const std::string &	excludeCharacters = "" )

Generates a string consisting of letters in the English alphabet.

Parameters

length	The number of characters to generate. Defaults to `1`.
casing	The casing of the characters. Defaults to `StringCasingMixed`.
excludeCharacters	The characters to be excluded from the string to generate. Defaults to ``.

Returns

Alpha string.

faker::string::alpha() // "b"
faker::string::alpha(5, StringCasing::Upper) // "DTCIC"
faker::string::alpha(4, StringCasing::Lower) // "brpt"

alphanumeric() [1/2]

FAKER_CXX_EXPORT std::string faker::string::alphanumeric	(	GuaranteeMap &&	guarantee,
		unsigned	length = 1,
		StringCasing	casing = StringCasing::Mixed )

Generates a string consisting of alpha characters and digits.

Parameters

guarantee	A map specifying char count constraints if any
length	The number of characters to generate. Defaults to `1`.
casing	The casing of the characters. Defaults to `StringCasingMixed`.

Returns

Alphanumeric string.

faker::string::alphanumeric({}) // "4"
faker::string::alphanumeric({{'A', {3,6}},{'1', {1,1}}, 5, StringCasing::Upper) // "1EAAA"
faker::string::alphanumeric({{'a',{0,2}},{'2',{0,3}},{'z',{3,5}}}, 10, StringCasing::Lower) // "z1naazrqz0"

alphanumeric() [2/2]

FAKER_CXX_EXPORT std::string faker::string::alphanumeric	(	unsigned	length = 1,
		StringCasing	casing = StringCasing::Mixed,
		const std::string &	excludeCharacters = "" )

Generates a string consisting of alpha characters and digits.

Parameters

length	The number of characters to generate. Defaults to `1`.
casing	The casing of the characters. Defaults to `StringCasingMixed`.
excludeCharacters	The characters to be excluded from alphanumeric characters to generate string from. Defaults to ``.

Returns

Alphanumeric string.

faker::string::alphanumeric() // "4"
faker::string::alphanumeric(5, StringCasing::Upper) // "3e5V7"
faker::string::alphanumeric(4, StringCasing::Lower) // "1nrq"

fromCharacters() [1/2]

FAKER_CXX_EXPORT std::string faker::string::fromCharacters	(	const std::string &	characters,
		unsigned	length = 1 )

Generates a string consisting of given characters.

Parameters

characters	The characters to generate string with.
length	The number of characters to generate. Defaults to `1`.

Returns

String from characters.

faker::string::fromCharacters("abc") // "b"
faker::string::fromCharacters("qwerty", 5) // "qrwqt"

fromCharacters() [2/2]

FAKER_CXX_EXPORT std::string faker::string::fromCharacters	(	GuaranteeMap &&	guarantee,
		const std::string &	characters,
		unsigned	length = 1 )

Generates a string consisting of given characters.

Parameters

guarantee	A map specifying char count constraints if any
characters	The characters to generate string with.
length	The number of characters to generate. Defaults to `1`.

Returns

String from characters.

faker::string::fromCharacters({}, "abc") // "b"
faker::string::fromCharacters({{'q',{2,2}},{'e',{1,5}}}, "qwerty", 8) // "yqreqety"

generateAtLeastString()

FAKER_CXX_EXPORT std::string faker::string::generateAtLeastString

(

const GuaranteeMap &

guarantee

)

Generates the least required string for a given guarantee map.

Parameters

guarantee

A std::map<char,CharCount> which stores the guarantee specified by the user

Returns

Least required std::string.

GuaranteeMap guarantee { {'0',{3,10}},{'a',{6,8}} }; // "000aaaaaa"
faker::string::generateAtLeastString(guarantee);

isValidGuarantee()

FAKER_CXX_EXPORT bool faker::string::isValidGuarantee	(	GuaranteeMap &	guarantee,
		std::set< char > &	targetCharacters,
		unsigned	length )

Checks if the given guarantee map is valid for given targetCharacters and length.

Parameters

guarantee	A std::map that maps the count range of specific characters required
targetCharacters	A std::string consisting of all chars available for that string generating function
length	The number of characters to generate.

Returns

A bool.

GuaranteeMap guarantee = {{'0',{5,10}},{'1',{6,10}}};
std::string targetCharacters = "01";
unsigned int length = 10;
faker::string::isValidGuarantee(guarantee,targetCharacters,length) // false

nanoId() [1/3]

FAKER_CXX_EXPORT std::string faker::string::nanoId

(

)

Generates a unique, URL-safe string identifier of default length.

This function generates a unique identifier with a default length of 10 characters. The identifier is URL-safe and created using a cryptographically secure random number generator.

Returns

A unique, URL-safe string identifier of default length (10 characters).

nanoId(); // Possible output: "Hf5lN8L2wQ"

nanoId() [2/3]

FAKER_CXX_EXPORT std::string faker::string::nanoId

(

int

length

)

Generates a unique, URL-safe string identifier of the specified length.

This function generates a unique identifier using a cryptographically secure random number generator, with the output length set by the `length` parameter.

Parameters

length

The exact length of the identifier to generate.

Returns

A unique, URL-safe string identifier of the specified length.

nanoId(10); // Possible output: "F8aXz1Q4wB"
nanoId(21); // Possible output: "V2JlO7GZ1kPl9FxErRqzS"

nanoId() [3/3]

FAKER_CXX_EXPORT std::string faker::string::nanoId	(	int	minLength,
		int	maxLength )

Generates a unique, URL-safe string identifier of random length within a specified range.

This function generates a unique identifier with a length that varies between `minLength` and `maxLength`, inclusive. The identifier is URL-safe and created using a cryptographically secure random number generator.

Parameters

minLength	The minimum length of the identifier.
maxLength	The maximum length of the identifier.

Returns

A unique, URL-safe string identifier with a length between `minLength` and `maxLength`.

nanoId(10, 15); // Possible output: "Vb2Ej8G9wPcQ2"
nanoId(5, 8);   // Possible output: "P1zZ3x"

numeric() [1/2]

FAKER_CXX_EXPORT std::string faker::string::numeric	(	GuaranteeMap &&	guarantee,
		unsigned	length = 1,
		bool	allowLeadingZeros = true )

Generates a given length string of digits.

Parameters

guarantee	A map specifying char count constraints if any
length	The number of digits to generate. Defaults to `1`.
allowLeadingZeros	Whether leading zeros are allowed or not. Defaults to `true`.

Returns

Numeric string.

faker::string::numeric({}) // "1"
faker::string::numeric({'5',{3,6}}, 6) // "055542"
faker::string::numeric({'0',{0,0}}, {'4',{1,1}}, 6, false) // "854829"

numeric() [2/2]

FAKER_CXX_EXPORT std::string faker::string::numeric	(	unsigned	length = 1,
		bool	allowLeadingZeros = true )

Generates a given length string of digits.

Parameters

length	The number of digits to generate. Defaults to `1`.
allowLeadingZeros	Whether leading zeros are allowed or not. Defaults to `true`.

Returns

Numeric string.

faker::string::numeric() // "1"
faker::string::numeric(6) // "035742"
faker::string::numeric(6, false) // "254429"

sample() [1/2]

FAKER_CXX_EXPORT std::string faker::string::sample	(	GuaranteeMap &&	guarantee,
		unsigned	length = 10 )

Returns a string containing UTF-16 chars between 33 and 125 (`!` to `}`).

Parameters

guarantee	A map specifying char count constraints if any
length	The number of characters to generate. Defaults to `10`.

Returns

Sample string.

faker::string::sample({}) // "Zo!.:*e>wR"
faker::string::sample({{'|' ,{2,2}},{'^',{0,0}},{':',{1,8}}}, 8) // "|6Bye8:|"

sample() [2/2]

FAKER_CXX_EXPORT std::string faker::string::sample

(

unsigned

length = 10

)

Returns a string containing UTF-16 chars between 33 and 125 (`!` to `}`).

Parameters

length

The number of characters to generate. Defaults to `10`.

Returns

Sample string.

faker::string::sample() // "Zo!.:*e>wR"
faker::string::sample(5) // "6Bye8"

symbol()

FAKER_CXX_EXPORT std::string faker::string::symbol	(	unsigned	minLength = 1,
		unsigned	maxLength = 10 )

Returns a string containing "~`!@#$%^&*()_-+={[}]|:;\"'<,>.?/".

Parameters

minLength	The number of minimum characters to generate. Defaults to `1`.
maxLength	The number of maximum characters to generate. Defaults to `10`.

Returns

Sample string.

faker::string::sample() // "#$%^&#$%^&"
faker::string::sample(1,5) // "#$%^&"

uuid()

template<typename T = std::mt19937>

std::string faker::string::uuid

(

RandomGenerator< T >

gen = RandomGenerator<std::mt19937>{}

)

Generates an Universally Unique Identifier with version 4.

Parameters

gen	A random number generator (type RandomGenerator)

Returns

UUID v4.

faker::string::uuid() // "27666229-cedb-4a45-8018-98b1e1d921e2"