SC::StringFormat< RangeIterator > Struct Template Reference

Formats String with a simple DSL embedded in the format string. More...

#include <StringFormat.h>

Classes
struct	Implementation

Static Public Member Functions
template<typename... Types>
static bool	format (StringFormatOutput &data, StringView fmt, Types &&... args)
	Formats fmt StringView using simple DSL where {} are replaced with args. More...

Detailed Description

template<typename RangeIterator>
struct SC::StringFormat< RangeIterator >

Formats String with a simple DSL embedded in the format string.

This is a small implementation to format using a minimal string based DSL, but good enough for simple usages. It uses the same {} syntax and supports positional arguments.
StringFormat::format(output, "{1} {0}", "World", "Hello") is formatted as "Hello World".
Inside the {} after a colon (:) a specification string can be used to indicate how to format the given value. As the backend for actual number to string formatting is snprintf, such specification strings are the same as what would be given to snprintf. For example passing "{:02}" is transformed to "%.02f" when passed to snprintf.
{ is escaped if found near to another {. In other words format("{{") will print a single {.

Example:

String        buffer(StringEncoding::Ascii);
StringBuilder builder(buffer);
SC_TEST_EXPECT(builder.format("{1}_{0}_{1}", 1, 0));
SC_TEST_EXPECT(buffer == "0_1_0");
SC_TEST_EXPECT(builder.format("{0:.2}_{1}_{0:.4}", 1.2222, "salve"));
SC_TEST_EXPECT(buffer == "1.22_salve_1.2222");

Note

It's not convenient to use SC::StringFormat directly, as you should probably use SC::StringBuilder

Template Parameters

RangeIterator

Type of the specific StringIterator used

Member Function Documentation

format()

template<typename RangeIterator >

template<typename... Types>

bool SC::StringFormat< RangeIterator >::format ( StringFormatOutput &  data, StringView  fmt, Types &&...  args  )

static

Formats fmt StringView using simple DSL where {} are replaced with args.

Template Parameters

Types

Types of the arguments being formatted

Parameters

data	Destination abstraction (buffer or console)
fmt	The format string to be used
args	Actual arguments being formatted

Returns

true if format succeeded

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The documentation for this struct was generated from the following file:

• StringFormat.h