mirror of https://github.com/catchorg/Catch2.git
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/*
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* Created by Phil on 11/1/2013.
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* Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef TWOBLUECUBES_CATCH_LINE_WRAP_HPP_INCLUDED
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#define TWOBLUECUBES_CATCH_LINE_WRAP_HPP_INCLUDED
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#include "catch_line_wrap.h"
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namespace Catch {
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namespace {
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inline void addIndent( std::ostream& os, std::size_t indent ) {
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while( indent-- > 0 )
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os << ' ';
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}
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inline void recursivelyWrapLine( std::ostream& os, std::string paragraph, std::size_t columns, std::size_t indent ) {
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std::size_t width = columns-indent;
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std::size_t tab = 0;
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std::size_t wrapPoint = width;
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for( std::size_t pos = 0; pos < paragraph.size(); ++pos ) {
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if( pos == width ) {
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addIndent( os, indent );
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os << paragraph.substr( 0, wrapPoint ) << "\n";
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return recursivelyWrapLine( os, paragraph.substr( wrapPoint+1 ), columns, indent+tab );
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}
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if( paragraph[pos] == '\t' ) {
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tab = pos;
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paragraph = paragraph.substr( 0, tab ) + paragraph.substr( tab+1 );
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pos--;
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}
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else if( paragraph[pos] == ' ' ) {
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wrapPoint = pos;
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}
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}
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addIndent( os, indent );
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os << paragraph;
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}
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}
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void wrapLongStrings( std::ostream& stream, const std::string& str, std::size_t columns, std::size_t indent ) {
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std::string::size_type pos = 0;
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std::string::size_type newline = str.find_first_of( '\n' );
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while( newline != std::string::npos ) {
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std::string paragraph = str.substr( pos, newline-pos );
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recursivelyWrapLine( stream, paragraph, columns, indent );
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stream << "\n";
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pos = newline+1;
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newline = str.find_first_of( '\n', pos );
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}
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if( pos != str.size() )
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recursivelyWrapLine( stream, str.substr( pos, str.size()-pos ), columns, indent );
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}
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std::string wrapLongStrings( const std::string& str, std::size_t columns, std::size_t indent ) {
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std::ostringstream oss;
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wrapLongStrings( oss, str, columns, indent );
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return oss.str();
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}
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} // end namespace Catch
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#endif // TWOBLUECUBES_CATCH_LINE_WRAP_HPP_INCLUDED
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