Name

SPVM::Format - Format Utilities

Usage

use Format;

# Foo 123 abc 1.115 Bar
my $result = Format->sprintf("Foo %d %s %.3f Bar", [(object)123, "abc", 1.115]);

# %d - "123"
my $result = Format->sprintf("%d", [(object)123]);

# %5d - "  123"
my $result = Format->sprintf("%5d", [(object)123]);

# %05d - "00123"
my $result = Format->sprintf("%05d", [(object)123]);

# %+d - "+123"
my $result = Format->sprintf("%+d", [(object)123]);

# %-5d - "123  "
my $result = Format->sprintf("%-5d", [(object)123]);

# %d - "x"
my $result = Format->sprintf("%c", [(object)'x']);

# %c - "あ"
my $result = Format->sprintf("%c", [(object)Fn->ord("あ")]);

# %s - "ABC"
my $result = Format->sprintf("%s", [(object)"ABC"]);

# %.2s - "AB"
my $result = Format->sprintf("%.2s", [(object)"ABC"]);

# %u - "4294967295"
my $result = Format->sprintf("%u", [(object)-1]);

# %f - "3.141500"
my $result = Format->sprintf("%f", [(object)3.1415]);

# %.2f - "3.14"
my $result = Format->sprintf("%.2f", [(object)3.1415]);

# %g - "3.14"
my $result = Format->sprintf("%g", [(object)3.14]);

# %x - "ff"
my $result = Format->sprintf("%x", [(object)255]);
  
# %x - "ffffffff"
my $result = Format->sprintf("%x", [(object)-1]);

# %p - "0x8000000000000000"
my $result = Format->sprintf("%p", [(object)$object]);

Description

Format is a formatting utilities for sprintf method.

Class Methods

sprintf

static method sprintf : string ($format : string, $args : object[]);

Creates a formatted string form $format and $args.

Specifiers

SpecifiersDescriptionsAcceptable Types
%cAn UTF-8 characterByte, Int
%dSigned 32-bit integerInt
%f64bit floating pointDouble, Float
%g64bit floating pointDouble, Float
%xUnsiged 32-bit integer represented by hexadecima characters 0-9a-zInt
%XUnsiged 32-bit integer represented by hexadecima characters 0-9A-ZInt
%lXUnsiged 64-bit integer represented by hexadecima characters 0-9A-ZLong
%ldSigned 64bit integerLong
%luUnsigned 64bit integerLong
%lxUnsiged 64-bit integer represented by hexadecima characters 0-9a-zLong
%sStringString Type
%pAddressObject Type
%uUnsigned 32-bit integerInt

Specifier Options

Specifier options can be written between % and the character of specifier such as d, f.

Specifier OptionsDescriptions
0[DECIMAL_NUMBERS]Zero padding
+Adding a plus sign
-Left justified
.[DECIMAL_NUMBERS]Precision(Maximam width in %s)

Copyright & License

Copyright (c) 2023 Yuki Kimoto

MIT License