OUTPUTFORMATTER Class Reference

An interface used to output 8 bit text in a convenient way. More...

#include <richio.h>

Inheritance diagram for OUTPUTFORMATTER:

Public Member Functions
int PRINTF_FUNC	Print (int nestLevel, const char *fmt,...)
	Format and write text to the output stream. More...
virtual const char *	GetQuoteChar (const char *wrapee) const
	Perform quote character need determination. More...
virtual std::string	Quotes (const std::string &aWrapee) const
	Check aWrapee input string for a need to be quoted (e.g. More...
std::string	Quotew (const wxString &aWrapee) const

Protected Member Functions
	OUTPUTFORMATTER (int aReserve=OUTPUTFMTBUFZ, char aQuoteChar='"' )
virtual	~OUTPUTFORMATTER ()
virtual void	write (const char *aOutBuf, int aCount)=0
	Should be coded in the interface implementation (derived) classes. More...

Static Protected Member Functions
static const char *	GetQuoteChar (const char *wrapee, const char *quote_char)
	Perform quote character need determination according to the Specctra DSN specification. More...

Private Member Functions
int	sprint (const char *fmt,...)
int	vprint (const char *fmt, va_list ap)

Private Attributes
std::vector< char >	m_buffer
char	quoteChar [2]

Detailed Description

An interface used to output 8 bit text in a convenient way.

The primary interface is "printf() - like" but with support for indentation control. The destination of the 8 bit wide text is up to the implementer.

The implementer only has to implement the write() function, but can also optionally re-implement GetQuoteChar().

If you want to output a wxString, then use TO_UTF8() on it before passing it as an argument to Print().

Since this is an abstract interface, only classes derived from this one may actually be used.

Definition at line 306 of file richio.h.

Constructor & Destructor Documentation

OUTPUTFORMATTER()

OUTPUTFORMATTER::OUTPUTFORMATTER ( int  aReserve = OUTPUTFMTBUFZ, char  aQuoteChar = '"'  )

inlineprotected

Definition at line 309 of file richio.h.

                                                                           :
            m_buffer( aReserve, '\0' )
    {
        quoteChar[0] = aQuoteChar;
        quoteChar[1] = '\0';
    }

References quoteChar.

~OUTPUTFORMATTER()

virtual OUTPUTFORMATTER::~OUTPUTFORMATTER ( )

inlineprotectedvirtual

Definition at line 316 of file richio.h.

{}

Member Function Documentation

GetQuoteChar() [1/2]

const char * OUTPUTFORMATTER::GetQuoteChar ( const char *  wrapee, const char *  quote_char  )

staticprotected

Perform quote character need determination according to the Specctra DSN specification.

Parameters

wrapee	A string that might need wrapping on each end.
quote_char	A single character C string which provides the current quote character, should it be needed by the wrapee.

Returns

the quote_char as a single character string, or "" if the wrapee does not need to be wrapped.

Definition at line 331 of file richio.cpp.

{
    // Include '#' so a symbol is not confused with a comment.  We intend
    // to wrap any symbol starting with a '#'.
    // Our LEXER class handles comments, and comments appear to be an extension
    // to the SPECCTRA DSN specification.
    if( *wrapee == '#' )
        return quote_char;

    if( strlen( wrapee ) == 0 )
        return quote_char;

    bool isFirst = true;

    for(  ; *wrapee;  ++wrapee, isFirst = false )
    {
        static const char quoteThese[] = "\t ()"
            "%"     // per Alfons of freerouting.net, he does not like this unquoted as of 1-Feb-2008
            "{}"    // guessing that these are problems too
            ;

        // if the string to be wrapped (wrapee) has a delimiter in it,
        // return the quote_char so caller wraps the wrapee.
        if( strchr( quoteThese, *wrapee ) )
            return quote_char;

        if( !isFirst  &&  '-' == *wrapee )
            return quote_char;
    }

    return "";  // caller does not need to wrap, can use an unwrapped string.
}

Referenced by DSN::PROPERTY::Format(), DSN::RECTANGLE::Format(), DSN::LAYER_RULE::Format(), DSN::PATH::Format(), DSN::CIRCLE::Format(), DSN::QARC::Format(), DSN::KEEPOUT::Format(), DSN::VIA::Format(), DSN::LAYER::Format(), DSN::SPECCTRA_LAYER_PAIR::Format(), DSN::STRINGPROP::Format(), DSN::PLACE::Format(), DSN::COMPONENT::Format(), DSN::PIN::Format(), DSN::IMAGE::Format(), DSN::PADSTACK::Format(), DSN::FROMTO::Format(), DSN::COMP_ORDER::Format(), DSN::NET::Format(), DSN::CLASS::Format(), DSN::WIRE::Format(), DSN::WIRE_VIA::Format(), DSN::PCB::Format(), DSN::ANCESTOR::Format(), DSN::SUPPLY_PIN::Format(), DSN::NET_OUT::Format(), DSN::SESSION::Format(), DSN::PARSER::FormatContents(), DSN::CLASSES::FormatContents(), DSN::REGION::FormatContents(), DSN::PADSTACK::FormatContents(), DSN::HISTORY::FormatContents(), DSN::PIN_REF::FormatIt(), and GetQuoteChar().

GetQuoteChar() [2/2]

const char * OUTPUTFORMATTER::GetQuoteChar ( const char *  wrapee ) const

virtual

Perform quote character need determination.

It returns the quote character as a single character string for a given input wrapee string. If the wrappee does not need to be quoted, the return value is "" (the null string), such as when there are no delimiters in the input wrapee string. If you want the quote_char to be assuredly not "", then pass in "(" as the wrappee.

Implementations are free to override the default behavior, which is to call the static function of the same name.

Parameters

wrapee

A string that might need wrapping on each end.

Returns

the quote_char as a single character string, or "" if the wrapee does not need to be wrapped.

Definition at line 365 of file richio.cpp.

{
    return GetQuoteChar( wrapee, quoteChar );
}

References GetQuoteChar(), and quoteChar.

Print()

int OUTPUTFORMATTER::Print	(	int	nestLevel,
		const char *	fmt,
			...
	)

Format and write text to the output stream.

Parameters

nestLevel	The multiple of spaces to precede the output with.
fmt	A printf() style format string.
...	a variable list of parameters that will get blended into the output under control of the format string.

Returns

int - the number of characters output.

Exceptions

IO_ERROR,if

there is a problem outputting, such as a full disk.

Definition at line 408 of file richio.cpp.

{
#define NESTWIDTH           2   

    va_list     args;

    va_start( args, fmt );

    int result = 0;
    int total  = 0;

    for( int i = 0; i < nestLevel; ++i )
    {
        // no error checking needed, an exception indicates an error.
        result = sprint( "%*c", NESTWIDTH, ' ' );

        total += result;
    }

    // no error checking needed, an exception indicates an error.
    result = vprint( fmt, args );

    va_end( args );

    total += result;
    return total;
}

References NESTWIDTH, sprint(), and vprint().

Referenced by PANEL_SYM_LIB_TABLE::convertLibrary(), PCB_CALCULATOR_DATAFILE::Format(), PCB_PLOT_PARAMS::Format(), COMPONENT_NET::Format(), TEMPLATE_FIELDNAME::Format(), XNODE::Format(), FP_LIB_TABLE::Format(), SCH_LEGACY_PLUGIN::Format(), SYMBOL_LIB_TABLE::Format(), TEMPLATES::Format(), TITLE_BLOCK::Format(), NETLIST_EXPORTER_PSPICE::Format(), DSN::POINT::Format(), COMPONENT::Format(), DSN::PROPERTY::Format(), PAGE_INFO::Format(), LIB_TABLE_ROW::Format(), PCB_IO::format(), DSN::ELEM::Format(), NETLIST::Format(), EDA_TEXT::Format(), DSN::UNIT_RES::Format(), DSN::RECTANGLE::Format(), DSN::RULE::Format(), DSN::LAYER_RULE::Format(), DSN::PATH::Format(), DSN::BOUNDARY::Format(), DSN::CIRCLE::Format(), DSN::QARC::Format(), DSN::WINDOW::Format(), DSN::KEEPOUT::Format(), DSN::VIA::Format(), DSN::CONTROL::Format(), DSN::LAYER::Format(), DSN::SPECCTRA_LAYER_PAIR::Format(), DSN::LAYER_NOISE_WEIGHT::Format(), DSN::TOKPROP::Format(), DSN::STRINGPROP::Format(), DSN::GRID::Format(), DSN::PLACE::Format(), DSN::COMPONENT::Format(), DSN::SHAPE::Format(), DSN::PIN::Format(), DSN::IMAGE::Format(), DSN::PADSTACK::Format(), DSN::FROMTO::Format(), DSN::COMP_ORDER::Format(), DSN::NET::Format(), DSN::CLASS::Format(), DSN::WIRE::Format(), DSN::WIRE_VIA::Format(), DSN::PCB::Format(), DSN::ANCESTOR::Format(), DSN::SUPPLY_PIN::Format(), DSN::NET_OUT::Format(), DSN::SESSION::Format(), PCB_IO::formatBoardLayers(), BOARD_STACKUP::FormatBoardStackup(), XNODE::FormatContents(), DSN::PARSER::FormatContents(), DSN::CLASSES::FormatContents(), DSN::REGION::FormatContents(), DSN::PLACEMENT::FormatContents(), DSN::IMAGE::FormatContents(), DSN::PADSTACK::FormatContents(), DSN::HISTORY::FormatContents(), DSN::ROUTE::FormatContents(), DSN::WAS_IS::FormatContents(), formatFill(), PCB_IO::formatGeneral(), DSN::PIN_REF::FormatIt(), PCB_IO::formatLayer(), PCB_IO::formatLayers(), PCB_IO::formatNetInformation(), formatNode(), PCB_IO::formatProperties(), PCB_IO::formatSetup(), formatStroke(), GENDRILL_WRITER_BASE::GenDrillReportFile(), GENDRILL_WRITER_BASE::printToolSummary(), CLIPBOARD_IO::Save(), PCB_IO::Save(), SCH_SEXPR_PLUGIN_CACHE::saveArc(), SCH_LEGACY_PLUGIN_CACHE::saveArc(), SCH_SEXPR_PLUGIN_CACHE::saveBezier(), SCH_LEGACY_PLUGIN_CACHE::saveBezier(), SCH_LEGACY_PLUGIN::saveBitmap(), SCH_LEGACY_PLUGIN::saveBusAlias(), SCH_LEGACY_PLUGIN::saveBusEntry(), SCH_SEXPR_PLUGIN_CACHE::saveCircle(), SCH_LEGACY_PLUGIN_CACHE::saveCircle(), SCH_LEGACY_PLUGIN_CACHE::saveDocFile(), SCH_LEGACY_PLUGIN::saveField(), SCH_SEXPR_PLUGIN_CACHE::saveField(), SCH_LEGACY_PLUGIN_CACHE::saveField(), SCH_LEGACY_PLUGIN::saveJunction(), SCH_LEGACY_PLUGIN::saveLine(), SCH_LEGACY_PLUGIN::saveNoConnect(), SCH_SEXPR_PLUGIN_CACHE::savePin(), SCH_LEGACY_PLUGIN_CACHE::savePin(), SCH_SEXPR_PLUGIN_CACHE::savePolyLine(), SCH_LEGACY_PLUGIN_CACHE::savePolyLine(), SCH_SEXPR_PLUGIN_CACHE::saveRectangle(), SCH_LEGACY_PLUGIN_CACHE::saveRectangle(), CLIPBOARD_IO::SaveSelection(), SCH_LEGACY_PLUGIN::saveSheet(), SCH_LEGACY_PLUGIN::saveSymbol(), SCH_SEXPR_PLUGIN_CACHE::SaveSymbol(), SCH_LEGACY_PLUGIN_CACHE::SaveSymbol(), SCH_LEGACY_PLUGIN::saveText(), SCH_SEXPR_PLUGIN_CACHE::saveText(), SCH_LEGACY_PLUGIN_CACHE::saveText(), PCB_CALCULATOR_FRAME::WriteDataFile(), NETLIST_EXPORTER_PSPICE_SIM::writeDirectives(), NETLIST_EXPORTER_PSPICE::writeDirectives(), and PCB_CALCULATOR_DATAFILE::WriteHeader().

Quotes()

std::string OUTPUTFORMATTER::Quotes ( const std::string &  aWrapee ) const

virtual

Check aWrapee input string for a need to be quoted (e.g.

contains a ')' character or a space), and for " double quotes within the string that need to be escaped such that the DSNLEXER will correctly parse the string from a file later.

Parameters

aWrapee

is a string that might need wrapping in double quotes, and it might need to have its internal content escaped, or not.

Returns

a std::string- whose c_str() function can be called for passing to printf() style functions that output UTF8 encoded s-expression streams.

Exceptions

IO_ERROR,if

there is any kind of problem with the input string.

Definition at line 437 of file richio.cpp.

{
    std::string ret;

    ret.reserve( aWrapee.size() * 2 + 2 );

    ret += '"';

    for( std::string::const_iterator it = aWrapee.begin(); it != aWrapee.end(); ++it )
    {
        switch( *it )
        {
        case '\n':
            ret += '\\';
            ret += 'n';
            break;
        case '\r':
            ret += '\\';
            ret += 'r';
            break;
        case '\\':
            ret += '\\';
            ret += '\\';
            break;
        case '"':
            ret += '\\';
            ret += '"';
            break;
        default:
            ret += *it;
        }
    }

    ret += '"';

    return ret;
}

Referenced by PCB_IO::format(), formatNode(), Quotew(), and SCH_SEXPR_PLUGIN_CACHE::SaveSymbol().

Quotew()

std::string OUTPUTFORMATTER::Quotew

(

const wxString &

aWrapee

)

const

Definition at line 476 of file richio.cpp.

{
    // wxStrings are always encoded as UTF-8 as we convert to a byte sequence.
    // The non-virtual function calls the virtual workhorse function, and if
    // a different quoting or escaping strategy is desired from the standard,
    // a derived class can overload Quotes() above, but
    // should never be a reason to overload this Quotew() here.
    return Quotes( (const char*) aWrapee.utf8_str() );
}

References Quotes().

Referenced by PCB_CALCULATOR_DATAFILE::Format(), COMPONENT_NET::Format(), TEMPLATE_FIELDNAME::Format(), TITLE_BLOCK::Format(), COMPONENT::Format(), PAGE_INFO::Format(), LIB_TABLE_ROW::Format(), PCB_IO::format(), PCB_IO::formatBoardLayers(), BOARD_STACKUP::FormatBoardStackup(), XNODE::FormatContents(), PCB_IO::formatLayer(), PCB_IO::formatLayers(), PCB_IO::formatNetInformation(), PCB_IO::formatProperties(), SCH_SEXPR_PLUGIN_CACHE::saveField(), SCH_SEXPR_PLUGIN_CACHE::savePin(), SCH_SEXPR_PLUGIN_CACHE::SaveSymbol(), SCH_SEXPR_PLUGIN_CACHE::saveText(), and PCB_CALCULATOR_DATAFILE::WriteHeader().

sprint()

int OUTPUTFORMATTER::sprint ( const char *  fmt,   ...  )

private

Definition at line 396 of file richio.cpp.

{
    va_list args;

    va_start( args, fmt );
    int ret = vprint( fmt, args);
    va_end( args );

    return ret;
}

References vprint().

Referenced by Print().

vprint()

int OUTPUTFORMATTER::vprint ( const char *  fmt, va_list  ap  )

private

Definition at line 370 of file richio.cpp.

{
    // This function can call vsnprintf twice.
    // But internally, vsnprintf retrieves arguments from the va_list identified by arg as if
    // va_arg was used on it, and thus the state of the va_list is likely to be altered by the call.
    // see: www.cplusplus.com/reference/cstdio/vsnprintf
    // we make a copy of va_list ap for the second call, if happens
    va_list tmp;
    va_copy( tmp, ap );
    int ret = vsnprintf( &m_buffer[0], m_buffer.size(), fmt, ap );

    if( ret >= (int) m_buffer.size() )
    {
        m_buffer.resize( ret + 1000 );
        ret = vsnprintf( &m_buffer[0], m_buffer.size(), fmt, tmp );
    }

    va_end( tmp );      // Release the temporary va_list, initialised from ap

    if( ret > 0 )
        write( &m_buffer[0], ret );

    return ret;
}

References m_buffer, and write().

Referenced by Print(), and sprint().

write()

virtual void OUTPUTFORMATTER::write ( const char *  aOutBuf, int  aCount  )

protectedpure virtual

Should be coded in the interface implementation (derived) classes.

Parameters

aOutBuf	is the start of a byte buffer to write.
aCount	tells how many bytes to write.

Exceptions

IO_ERROR,if

there is a problem outputting, such as a full disk.

Implemented in STREAM_OUTPUTFORMATTER, FILE_OUTPUTFORMATTER, and STRING_FORMATTER.

Referenced by vprint().

Member Data Documentation

m_buffer

std::vector<char> OUTPUTFORMATTER::m_buffer

private

Definition at line 397 of file richio.h.

Referenced by vprint().

quoteChar

char OUTPUTFORMATTER::quoteChar[2]

private

Definition at line 398 of file richio.h.

Referenced by GetQuoteChar(), and OUTPUTFORMATTER().

---

The documentation for this class was generated from the following files:

• richio.h
• richio.cpp