#include <util/strencodings.h>
#include <util/string.h>
#include <tinyformat.h>
#include <array>
#include <cstdlib>
#include <cstring>
#include <optional>

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Functions
std::string	SanitizeString (std::string_view str, int rule)
	Remove unsafe chars.

signed char	HexDigit (char c)

bool	IsHex (std::string_view str)
	Returns true if each character in str is a hex character, and has an even number of hex digits.

bool	IsHexNumber (std::string_view str)
	Return true if the string is a hex number, optionally prefixed with "0x".

template<typename Byte >
std::optional< std::vector< Byte > >	TryParseHex (std::string_view str)
	Parse the hex string into bytes (uint8_t or std::byte).

template std::vector< std::byte >	ParseHex (std::string_view)

void	SplitHostPort (std::string_view in, uint16_t &portOut, std::string &hostOut)

std::string	EncodeBase64 (Span< const uint8_t > input)

std::optional< std::vector< uint8_t > >	DecodeBase64 (std::string_view str)

std::string	EncodeBase32 (Span< const uint8_t > input, bool pad)
	Base32 encode.

std::string	EncodeBase32 (std::string_view str, bool pad)
	Base32 encode.

std::optional< std::vector< uint8_t > >	DecodeBase32 (std::string_view str)

bool	ParseInt32 (std::string_view str, int32_t *out)
	Convert string to signed 32-bit integer with strict parse error feedback.

bool	ParseInt64 (std::string_view str, int64_t *out)
	Convert string to signed 64-bit integer with strict parse error feedback.

bool	ParseUInt8 (std::string_view str, uint8_t *out)
	Convert decimal string to unsigned 8-bit integer with strict parse error feedback.

bool	ParseUInt16 (std::string_view str, uint16_t *out)
	Convert decimal string to unsigned 16-bit integer with strict parse error feedback.

bool	ParseUInt32 (std::string_view str, uint32_t *out)
	Convert decimal string to unsigned 32-bit integer with strict parse error feedback.

bool	ParseUInt64 (std::string_view str, uint64_t *out)
	Convert decimal string to unsigned 64-bit integer with strict parse error feedback.

std::string	FormatParagraph (std::string_view in, size_t width, size_t indent)
	Format a paragraph of text to a fixed width, adding spaces for indentation to any added line.

int64_t	atoi64 (const std::string &str)

int	atoi (const std::string &str)

static bool	ProcessMantissaDigit (char ch, int64_t &mantissa, int &mantissa_tzeros)
	Helper function for ParseFixedPoint.

bool	ParseFixedPoint (std::string_view val, int decimals, int64_t *amount_out)
	Parse number as fixed point according to JSON number syntax.

std::string	ToLower (std::string_view str)
	Returns the lowercase equivalent of the given string.

std::string	ToUpper (std::string_view str)
	Returns the uppercase equivalent of the given string.

std::string	Capitalize (std::string str)
	Capitalizes the first character of the given string.

std::string	HexStr (const Span< const uint8_t > s)
	Convert a span of bytes to a lower-case hexadecimal string.

Variables
static const std::string	CHARS_ALPHA_NUM

static const std::string	SAFE_CHARS []

const signed char	p_util_hexdigit [256]

static const int64_t	UPPER_BOUND = 1000000000000000000LL - 1LL
	Upper bound for mantissa.

Function Documentation

◆ atoi()

int atoi ( const std::string & str )

Definition at line 347 of file strencodings.cpp.

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◆ atoi64()

int64_t atoi64 ( const std::string & str )

Definition at line 339 of file strencodings.cpp.

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◆ Capitalize()

std::string Capitalize ( std::string str )

Capitalizes the first character of the given string.

This function is locale independent. It only converts lowercase characters in the standard 7-bit ASCII range. This is a feature, not a limitation.

Parameters

[in] str the string to capitalize.

Returns: string with the first letter capitalized.

Definition at line 517 of file strencodings.cpp.

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◆ DecodeBase32()

std::optional< std::vector< uint8_t > > DecodeBase32 ( std::string_view str )

Definition at line 208 of file strencodings.cpp.

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◆ DecodeBase64()

std::optional< std::vector< uint8_t > > DecodeBase64 ( std::string_view str )

Definition at line 148 of file strencodings.cpp.

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◆ EncodeBase32() [1/2]

std::string EncodeBase32	(	Span< const uint8_t >	input,
		bool	pad = `true`
	)

Base32 encode.

If pad is true, then the output will be padded with '=' so that its length is a multiple of 8.

Definition at line 189 of file strencodings.cpp.

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◆ EncodeBase32() [2/2]

std::string EncodeBase32	(	std::string_view	str,
		bool	pad = `true`
	)

Base32 encode.

If pad is true, then the output will be padded with '=' so that its length is a multiple of 8.

Definition at line 204 of file strencodings.cpp.

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◆ EncodeBase64()

std::string EncodeBase64 ( Span< const uint8_t > input )

Definition at line 134 of file strencodings.cpp.

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◆ FormatParagraph()

std::string FormatParagraph	(	std::string_view	in,
		size_t	width,
		size_t	indent
	)

Format a paragraph of text to a fixed width, adding spaces for indentation to any added line.

Definition at line 300 of file strencodings.cpp.

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◆ HexDigit()

signed char HexDigit ( char c )

Definition at line 59 of file strencodings.cpp.

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◆ HexStr()

std::string HexStr ( const Span< const uint8_t > s )

Convert a span of bytes to a lower-case hexadecimal string.

Definition at line 543 of file strencodings.cpp.

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◆ IsHex()

bool IsHex ( std::string_view str )

Returns true if each character in str is a hex character, and has an even number of hex digits.

Definition at line 63 of file strencodings.cpp.

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◆ IsHexNumber()

bool IsHexNumber ( std::string_view str )

Return true if the string is a hex number, optionally prefixed with "0x".

Definition at line 72 of file strencodings.cpp.

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◆ ParseFixedPoint()

bool ParseFixedPoint	(	std::string_view	val,
		int	decimals,
		int64_t *	amount_out
	)

Parse number as fixed point according to JSON number syntax.

See http://json.org/number.gif

Returns: true on success, false on error.

Note: The result must be in the range (-10^18,10^18), otherwise an overflow error will trigger.

Definition at line 381 of file strencodings.cpp.

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◆ ParseHex()

template std::vector< uint8_t > ParseHex ( std::string_view )

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◆ ParseInt32()

bool ParseInt32	(	std::string_view	str,
		int32_t *	out
	)

Convert string to signed 32-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if not the entire string could be parsed or when overflow or underflow occurred.

Definition at line 276 of file strencodings.cpp.

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◆ ParseInt64()

bool ParseInt64	(	std::string_view	str,
		int64_t *	out
	)

Convert string to signed 64-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if not the entire string could be parsed or when overflow or underflow occurred.

Definition at line 280 of file strencodings.cpp.

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◆ ParseUInt16()

bool ParseUInt16	(	std::string_view	str,
		uint16_t *	out
	)

Convert decimal string to unsigned 16-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if the entire string could not be parsed or if overflow or underflow occurred.

Definition at line 288 of file strencodings.cpp.

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◆ ParseUInt32()

bool ParseUInt32	(	std::string_view	str,
		uint32_t *	out
	)

Convert decimal string to unsigned 32-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if not the entire string could be parsed or when overflow or underflow occurred.

Definition at line 292 of file strencodings.cpp.

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◆ ParseUInt64()

bool ParseUInt64	(	std::string_view	str,
		uint64_t *	out
	)

Convert decimal string to unsigned 64-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if not the entire string could be parsed or when overflow or underflow occurred.

Definition at line 296 of file strencodings.cpp.

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◆ ParseUInt8()

bool ParseUInt8	(	std::string_view	str,
		uint8_t *	out
	)

Convert decimal string to unsigned 8-bit integer with strict parse error feedback.

Returns: true if the entire string could be parsed as valid integer, false if not the entire string could be parsed or when overflow or underflow occurred.

Definition at line 284 of file strencodings.cpp.

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◆ ProcessMantissaDigit()

static bool ProcessMantissaDigit	(	char	ch,
		int64_t &	mantissa,
		int &	mantissa_tzeros
	)

inlinestatic

Helper function for ParseFixedPoint.

Definition at line 363 of file strencodings.cpp.

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◆ SanitizeString()

std::string SanitizeString	(	std::string_view	str,
		int	rule = `SAFE_CHARS_DEFAULT`
	)

Remove unsafe chars.

Safe chars chosen to allow simple messages/URLs/email addresses, but avoid anything even possibly remotely dangerous like & or >

Parameters

[in]	str	The string to sanitize
[in]	rule	The set of safe chars to choose (default: least restrictive)

Returns: A new string without unsafe chars

Definition at line 30 of file strencodings.cpp.

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◆ SplitHostPort()

void SplitHostPort	(	std::string_view	in,
		uint16_t &	portOut,
		std::string &	hostOut
	)

Definition at line 109 of file strencodings.cpp.

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◆ ToLower()

std::string ToLower ( std::string_view str )

Returns the lowercase equivalent of the given string.

This function is locale independent. It only converts uppercase characters in the standard 7-bit ASCII range. This is a feature, not a limitation.

Parameters

[in] str the string to convert to lowercase.

Returns: lowercased equivalent of str

Definition at line 501 of file strencodings.cpp.

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◆ ToUpper()

std::string ToUpper ( std::string_view str )

Returns the uppercase equivalent of the given string.

This function is locale independent. It only converts lowercase characters in the standard 7-bit ASCII range. This is a feature, not a limitation.

Parameters

[in] str the string to convert to uppercase.

Returns: UPPERCASED EQUIVALENT OF str

Definition at line 509 of file strencodings.cpp.

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◆ TryParseHex()

template<typename Byte >

std::optional< std::vector< Byte > > TryParseHex ( std::string_view str )

Parse the hex string into bytes (uint8_t or std::byte).

Ignores whitespace. Returns nullopt on invalid input.

Definition at line 86 of file strencodings.cpp.

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Variable Documentation

◆ CHARS_ALPHA_NUM

const std::string CHARS_ALPHA_NUM

static

Initial value:

=

"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"

Definition at line 16 of file strencodings.cpp.

◆ p_util_hexdigit

const signed char p_util_hexdigit[256]

Initial value:

= {
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    0,  1,   2,   3,   4,   5,   6,   7,  8,  9,  -1, -1, -1, -1, -1, -1,
    -1, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1,  -1,  -1,  -1,  -1,  -1,  -1, -1, -1, -1, -1, -1, -1, -1, -1,
}

Definition at line 40 of file strencodings.cpp.

◆ SAFE_CHARS

const std::string SAFE_CHARS[]

static

Initial value:

= {
    
    CHARS_ALPHA_NUM + " .,;-_/:?@()",
    
    CHARS_ALPHA_NUM + " .,;-_?@",
    
    CHARS_ALPHA_NUM + ".-_",
    
    CHARS_ALPHA_NUM + "!*'();:@&=+$,/?#[]-_.~%",
}

Definition at line 19 of file strencodings.cpp.

◆ UPPER_BOUND

const int64_t UPPER_BOUND = 1000000000000000000LL - 1LL

static

Upper bound for mantissa.

10^18-1 is the largest arbitrary decimal that will fit in a signed 64-bit integer. Larger integers cannot consist of arbitrary combinations of 0-9:

999999999999999999 1^18-1 9223372036854775807 (1<<63)-1 (max int64_t) 9999999999999999999 1^19-1 (would overflow)

Definition at line 360 of file strencodings.cpp.

Functions

Variables

Function Documentation

◆ atoi()

◆ atoi64()

◆ Capitalize()

◆ DecodeBase32()

◆ DecodeBase64()

◆ EncodeBase32() [1/2]

◆ EncodeBase32() [2/2]

◆ EncodeBase64()

◆ FormatParagraph()

◆ HexDigit()

◆ HexStr()

◆ IsHex()

◆ IsHexNumber()

◆ ParseFixedPoint()

◆ ParseHex()

◆ ParseInt32()

◆ ParseInt64()

◆ ParseUInt16()

◆ ParseUInt32()

◆ ParseUInt64()

◆ ParseUInt8()

◆ ProcessMantissaDigit()

◆ SanitizeString()

◆ SplitHostPort()

◆ ToLower()

◆ ToUpper()

◆ TryParseHex()

Variable Documentation

◆ CHARS_ALPHA_NUM

◆ p_util_hexdigit

◆ SAFE_CHARS

◆ UPPER_BOUND