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mir.format

@nogc Formatting Utilities

License:

Apache-2.0

Authors:

Ilya Yaroshenko

Examples:

mir.conv: to extension.

import mir.conv: to;
import mir.small_string;
alias S = SmallString!32;

assert(123.0.to!S == "123");
assert(123.to!(immutable S) == "123");
assert(true.to!S == "true");
assert(true.to!string == "true");

assert((cast(S)"str")[] == "str");

Examples:

mir.conv: to extension.

import mir.conv: to;
import mir.small_string;
alias S = SmallString!32;

auto str = S("str");
assert(str.to!(const(char)[]) == "str"); // GC allocated result
assert(str.to!(char[]) == "str"); // GC allocated result

Examples:

ditto

import mir.conv: to;
import mir.small_string;
alias S = SmallString!32;

assert(123.0.to!string == "123");
assert(123.to!(char[]) == "123");

assert(S("str").to!string == "str"); // GC allocated result

string text(string separator = "", A...)(auto ref A args) if (A.length > 0);

Concatenated string results

Examples:

assert(text("str ", true, " ", 100, " ", 124.1) == "str true 100 124.1");
assert(text!" "("str", true, 100, 124.1) == "str true 100 124.1");

struct GetData;

enum GetData getData;

struct _stringBuf(C); alias stringBuf = _stringBuf!char._stringBuf; alias wstringBuf = _stringBuf!wchar._stringBuf; alias dstringBuf = _stringBuf!dchar._stringBuf;

ScopedBuffer!C buffer;

template StreamFormatOp(C)

Examples:

auto name = "D";
auto ver = 2.0;
assert(stringBuf() << "Hi " << name << ver << "!\n" << getData == "Hi D2!\n");

Examples:

auto name = "D"w;
auto ver = 2;
assert(wstringBuf() << "Hi "w << name << ver << "!\n"w << getData == "Hi D2!\n"w);

Examples:

auto name = "D"d;
auto ver = 2;
assert(dstringBuf() << "Hi "d  << name << ver << "!\n"d << getData == "Hi D2!\n");

ref scope typeof(this) opBinary(string op : "<<", T)(ref const T c);
ref scope typeof(this) opBinary(string op : "<<", T)(const T c); scope const(C)[] opBinary(string op : "<<", T : GetData)(const T c);

struct FormatSpec;

C's compatible format specifier.

bool dash;
bool plus;
bool space;
bool hash;
bool zero;
char format;
char separator;
ubyte unitSize;
int width;
int precision;

enum SwitchLU: bool;

lower
upper

struct FormattedFloating(T) if (is(T == float) || is(T == double) || is(T == real)); FormattedFloating!T withFormat(T)(const T value, FormatSpec spec);

T value;
FormatSpec spec;
const scope void toString(C = char, W)(ref scope W w);

struct HexAddress(T) if (isUnsigned!T && !is(T == enum));

T value;
SwitchLU switchLU;
const scope void toString(C = char, W)(ref scope W w);

enum EscapeFormat: int;

ref W printEscaped(C, EscapeFormat escapeFormat = EscapeFormat.ion, W)(return ref scope W w, scope const(C)[] str);

Examples:

   import mir.appender: ScopedBuffer;
   ScopedBuffer!char w;
   assert(w.printEscaped("Hi \f\t\b \\\r\n" ~ `"@nogc"`).data == "Hi \f\t\b \\\\\\r\\n\\\"@nogc\\\"", w.data);
   w.reset;
   assert(w.printEscaped("\x03").data == `\x03`, w.data);

ref W put_xXX(C = char, W)(return ref scope W w, char c);

Decodes char c to the form u00XX, where XX is 2 hexadecimal characters.

ref W put_uXXXX(C = char, W)(return ref scope W w, char c);

Decodes char c to the form u00XX, where XX is 2 hexadecimal characters.

ref W put_uXXXX(C = char, W)(return ref scope W w, ushort c);

Decodes ushort c to the form uXXXX, where XXXX is 2 hexadecimal characters.

ref W printElement(C, EscapeFormat escapeFormat = EscapeFormat.ion, W)(return ref scope W w, scope const(C)[] c) if (isSomeChar!C);

ref W printElement(C = char, EscapeFormat escapeFormat = EscapeFormat.ion, W, T)(return ref scope W w, auto ref scope const T c) if (!isSomeString!T);

ref W print(C = char, W, Args...)(return ref scope W w, auto ref scope const Args args) if (Args.length > 1);

Multiargument overload.

ref W print(C = char, W, T)(return ref scope W w, const T c) if (is(T == enum)); ref W print(C = char, W)(return ref scope W w, bool c); ref W print(C = char, W, V, K)(return ref scope W w, scope const V[K] c); ref W print(C = char, W, T)(return ref scope W w, scope const(T)[] c) if (!isSomeChar!T); ref W print(C = char, W)(return ref scope W w, char c); ref W print(C = char, W)(return ref scope W w, scope const(C)[] c) if (isSomeChar!C); ref W print(C = char, W, I)(return ref scope W w, const I c) if (isIntegral!I && !is(I == enum)); ref W print(C = char, W, T)(return ref scope W w, const T c) if (is(T == float) || is(T == double) || is(T == real)); ref W print(C = char, W, T)(return ref scope W w, ref const T c) if (is(T == struct) || is(T == union)); ref W print(C = char, W, T)(return ref scope W w, scope const T c) if (is(T == struct) || is(T == union)); ref W print(C = char, W, T)(return ref scope W w, scope const T c) if (is(T == class) || is(T == interface));

Examples:

enum Flag
{
    no,
    yes,
}

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
w.print(Flag.yes);
assert(w.data == "yes", w.data);

Examples:

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
assert(w.print(true).data == `true`, w.data);
w.reset;
assert(w.print(false).data == `false`, w.data);

Examples:

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
w.print(["a": 1, "b": 2]);
assert(w.data == `["a": 1, "b": 2]` || w.data == `["b": 2, "a": 1]`, w.data);

Examples:

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
string[2] array = ["a\na", "b"];
assert(w.print(array[]).data == `["a\na", "b"]`, w.data);

Examples:

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
assert(w
    .print('\n')
    .print('\'')
    .print('a')
    .print('\xF4')
    .data == `'\n''\'''a''\xF4'`);

Examples:

static struct A { scope void toString(C, W)(scope ref W w) const { w.put(C('a')); } }
static struct S { scope void toString(W)(scope ref W w) const { w.put("s"); } }
static struct D { scope void toString(Dg)(scope Dg sink) const { sink("d"); } }
static struct F { scope const(char)[] toString()() const return { return "f"; } }
static struct G { const(char)[] s = "g"; alias s this; }

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
assert(stringBuf() << A() << S() << D() << F() << G() << getData == "asdfg");

Examples:

static class A { void toString(C, W)(scope ref W w) const { w.put(C('a')); } }
static class S { void toString(W)(scope ref W w) const { w.put("s"); } }
static class D { void toString(Dg)(scope Dg sink) const { sink("d"); } }
static class F { const(char)[] toString()() const return { return "f"; } }
static class G { const(char)[] s = "g"; alias s this; }

import mir.appender: ScopedBuffer;
ScopedBuffer!char w;
assert(stringBuf() << new A() << new S() << new D() << new F() << new G() << getData == "asdfg");

ref W printStaticString(C, size_t N, W)(return ref scope W w, ref scope const C[N] c) if (is(C == char) || is(C == wchar) || is(C == dchar));

ref W printZeroPad(C = char, W, I)(return ref scope W w, const I c, size_t minimalLength) if (isIntegral!I && !is(I == enum));

Examples:

import mir.appender;
ScopedBuffer!char w;

w.printZeroPad(-123, 5);
w.put(' ');
w.printZeroPad(123, 5);

assert(w.data == "-0123 00123", w.data);

size_t printBoolean(C)(bool c, ref C[5] buf) if (is(C == char) || is(C == wchar) || is(C == dchar));

Library Reference

mir.format

@nogc Formatting Utilities