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# Boost.Regex

## Format String Syntax

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Format strings are used by the algorithm regex_replace and by match_results::format, and are used to transform one string into another.

There are three kind of format string: Sed, Perl and Boost-extended.

Alternatively, when the flag `format_literal` is passed to one of these functions, then the format string is treated as a string literal, and is copied unchanged to the output.

Sed Style Format Strings
Perl Style Format Strings
Boost-Extended Format Strings

Revised 24 Nov 2004

© Copyright John Maddock 1998- 2004

Use, modification and distribution are subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)