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Refactored string wrapper

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- to be much more flexible (writes to vector)
- fixed a couple of bugs
This commit is contained in:
Phil Nash 2013-03-27 19:08:16 +00:00
parent dd26e889b5
commit b052bd729a
6 changed files with 806 additions and 316 deletions
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121
include/internal/catch_line_wrap.hpp
View file

@ -12,60 +12,91 @@
namespace Catch {
namespace {
inline void addIndent( std::ostream& os, std::size_t indent ) {
while( indent-- > 0 )
os << ' ';
}
inline void recursivelyWrapLine( std::ostream& os, std::string paragraph, std::size_t columns, std::size_t indent ) {
std::size_t width = columns-indent;
std::size_t tab = 0;
std::size_t wrapPoint = width;
for( std::size_t pos = 0; pos < paragraph.size(); ++pos ) {
if( pos == width ) {
addIndent( os, indent );
if( paragraph[wrapPoint] == ' ' ) {
os << paragraph.substr( 0, wrapPoint ) << "\n";
while( paragraph[++wrapPoint] == ' ' );
}
else {
os << paragraph.substr( 0, --wrapPoint ) << "-\n";
}
return recursivelyWrapLine( os, paragraph.substr( wrapPoint ), columns, indent+tab );
LineWrapper::LineWrapper( std::size_t _indent, std::size_t _right )
: indent( _indent, ' ' ),
right( _right ),
nextTab( 0 ),
tab( 0 )
{}
LineWrapper::LineWrapper( std::size_t _right )
: right( _right ),
nextTab( 0 ),
tab( 0 )
{}
LineWrapper::LineWrapper()
: right( CATCH_CONFIG_CONSOLE_WIDTH-1 ),
nextTab( 0 ),
tab( 0 )
{}
LineWrapper& LineWrapper::setIndent( std::size_t _indent ) {
indent = std::string( _indent, ' ' );
return *this;
}
LineWrapper& LineWrapper::setRight( std::size_t _right ) {
right = _right;
return *this;
}
LineWrapper& LineWrapper::wrap( std::string const& _str ) {
nextTab = tab = 0;
wrapInternal( _str );
return *this;
}
void LineWrapper::wrapInternal( std::string const& _str ) {
std::size_t width = right - indent.size();
std::size_t wrapPoint = width-tab;
for( std::size_t pos = 0; pos < _str.size(); ++pos ) {
if( _str[pos] == '\n' )
{
addLine( _str.substr( 0, pos ) );
nextTab = tab = 0;
return wrapInternal( _str.substr( pos+1 ) );
}
if( pos == width-tab ) {
if( _str[wrapPoint] == ' ' ) {
addLine( _str.substr( 0, wrapPoint ) );
while( _str[++wrapPoint] == ' ' );
}
if( paragraph[pos] == '\t' ) {
tab = pos;
paragraph = paragraph.substr( 0, tab ) + paragraph.substr( tab+1 );
pos--;
}
else if( paragraph[pos] == ' ' ) {
wrapPoint = pos;
else {
addLine( _str.substr( 0, --wrapPoint ) + '-' );
}
return wrapInternal( _str.substr( wrapPoint ) );
}
if( _str[pos] == '\t' ) {
nextTab = pos;
std::string withoutTab = _str.substr( 0, nextTab ) + _str.substr( nextTab+1 );
return wrapInternal( withoutTab );
}
else if( _str[pos] == ' ' ) {
wrapPoint = pos;
}
addIndent( os, indent );
os << paragraph;
}
addLine( _str );
}
void wrapLongStrings( std::ostream& stream, const std::string& str, std::size_t columns, std::size_t indent ) {
std::string::size_type pos = 0;
std::string::size_type newline = str.find_first_of( '\n' );
while( newline != std::string::npos ) {
std::string paragraph = str.substr( pos, newline-pos );
recursivelyWrapLine( stream, paragraph, columns, indent );
stream << "\n";
pos = newline+1;
newline = str.find_first_of( '\n', pos );
std::ostream& LineWrapper::intoStream( std::ostream& stream ) const {
for( const_iterator it = begin(), itEnd = end();
it != itEnd; ++it ) {
if( it != begin() )
stream << "\n";
stream << *it;
}
if( pos != str.size() )
recursivelyWrapLine( stream, str.substr( pos, str.size()-pos ), columns, indent );
return stream;
}
std::string wrapLongStrings( const std::string& str, std::size_t columns, std::size_t indent ) {
std::string LineWrapper::toString() const {
std::ostringstream oss;
wrapLongStrings( oss, str, columns, indent );
return oss.str();
intoStream( oss );
return oss.str();
}
void LineWrapper::addLine( const std::string& _line ) {
if( tab > 0 )
lines.push_back( indent + std::string( tab, ' ' ) + _line );
else
lines.push_back( indent + _line );
if( nextTab > 0 )
tab = nextTab;
}
} // end namespace Catch