mir.parse

struct ParsePosition;

Parsing position

string file;

uint line;

0 is for unknown

uint column;

0 is for unknown

const void toString(W)(ref scope W w) scope;

enum DecimalExponentKey: int;

none

infinity

nan

dot

d

e

D

E

struct DecimalExponentInfo;

Examples:

mir.conv: to extension.

import mir.test: should;
import mir.conv: to;

"123.0".to!double.should == 123;
"123".to!int.should == 123;
"123".to!byte.should == 123;

import mir.small_string;
alias S = SmallString!32;
"123.0".SmallString!32.to!double.should == 123;

long exponent;

DecimalExponentKey key;

template fromString(T) if (isMutable!T)

Performs nothrow and @nogc string to native type conversion.

Returns:

parsed value

Throws:

nogc Exception in case of parse error or non-empty remaining input.

Floating point Mir parsing supports up-to quadruple precision. The conversion error is 0 ULP for normal numbers. Subnormal numbers with an exponent greater than or equal to -512 have upper error bound equal to 1 ULP.

T fromString(C)(scope const(C)[] str)
if (isSomeChar!C);

@trusted bool fromString(T, C)(scope const(C)[] str, ref T value)
if (isSomeChar!C && isFloatingPoint!T);

bool fromString(T, C)(scope const(C)[] str, ref T value)
if (isSomeChar!C && !isFloatingPoint!T);

Performs nothrow and @nogc string to native type conversion.

Rseturns true if success and false otherwise.

Examples:

int value;
assert("123".fromString(value) && value == 123);

Examples:

double value = 0;
assert("+Inf".fromString(value) && value == double.infinity);
assert("-nan".fromString(value) && value != value);

bool parse(T, C)(ref scope inout(C)[] str, ref scope T value)
if (isSomeChar!C && isSomeChar!T && (T.sizeof == C.sizeof));

Single character parsing utilities.

Returns:

true if success and false otherwise.

Examples:

auto s = "str";
char c;
assert(parse(s, c));
assert(c == 's');
assert(s == "tr");

bool parse(T, C)(ref scope inout(C)[] str, out scope T value)
if ((is(T == byte) || is(T == short)) && isSomeChar!C);

Integer parsing utilities.

Returns:

true if success and false otherwise.