C++ pstring函数代码示例

void sax_parser<_Handler,_Config>::characters()
{
    size_t first = m_pos;
    const char* p0 = m_char;
    for (; has_char(); next())
    {
        if (cur_char() == '<')
            break;

        if (cur_char() == '&')
        {
            // Text span with one or more encoded characters. Parse using cell buffer.
            cell_buffer& buf = get_cell_buffer();
            buf.reset();
            buf.append(p0, m_pos-first);
            characters_with_encoded_char(buf);
            if (buf.empty())
                m_handler.characters(pstring(), false);
            else
                m_handler.characters(pstring(buf.get(), buf.size()), true);
            return;
        }
    }

    if (m_pos > first)
    {
        size_t size = m_pos - first;
        pstring val(m_content + first, size);
        m_handler.characters(val, false);
    }
}

void tool_app_t::mac_out(const pstring &s, const bool cont)
{
	if (cont)
	{
		unsigned pos = 0;
		pstring r;
		for (const auto &x : s)
		{
			if (x == '\t')
			{
				auto pos_mod_4 = pos % opt_tabwidth();
				auto tab_adj = opt_tabwidth() - pos_mod_4;
				r += plib::rpad(pstring(""), pstring(" "), tab_adj);
				pos += tab_adj;
			}
			else
			{
				r += x;
				pos++;
			}
		}
		pout("{1}\\\n", plib::rpad(r, pstring(" "), opt_linewidth()-1));
	}
	else
		pout("{1}\n", s);
}

IShapeMap *IGraphFile::importMap(const char *filename, const char *type, const char *newmapname) 
{
   // Note: 08-APR-2010 -- still have to add DXF and CAT (all to get automatic analysis working)

   IShapeMap *shapemap = NULL;

   MetaGraph *graph = ((IGraphOrganizer *)m_data)->m_graph;

   string type_str = string(type);

   if (!(type_str.compare("MIF") == 0 || type_str.compare("TXT") == 0 || type_str.compare("CSV") == 0)) {
      return NULL;
   }

   if (type_str.compare("TXT") == 0 || type_str.compare("CSV") == 0) 
   {
      // these can be x,y points or x1,y1,x2,y2 lines
      // first line should be labels, creates a datamap
   	ifstream file(filename);

      if (!file) {
		   return NULL;
      }
      else {
         int mapref = graph->importTxt( file, pstring(newmapname), (type_str.compare("CSV")==0) );
         
         if (mapref != -1) {
            // note, at this stage in development, you CANNOT go from the mapref directly here as the getIShapeMap has both shape graphs and data maps mixed together
            ShapeMap& basemap = graph->m_data_maps.getMap(mapref);
			   shapemap = ((IGraphOrganizer *)m_data)->getIShapeMap(&basemap);
         }
      }
   }
   else if (type_str.compare("MIF") == 0) {

      pstring miffilename = pstring(filename) + ".mif";
	   pstring midfilename = pstring(filename) + ".mid";

	   ifstream miffile( miffilename.c_str() );
	   ifstream midfile( midfilename.c_str() );

	   if (miffile && midfile) {
		   int mapref = graph->m_data_maps.addMap(pstring(newmapname),ShapeMap::DATAMAP);

		   ShapeMap& mifmap = graph->m_data_maps.getMap(mapref);
	
		   int ok = mifmap.loadMifMap(miffile,midfile);
		   if (ok == MINFO_OK || ok == MINFO_MULTIPLE) { // multiple is just a warning
            // note, at this stage in development, you CANNOT go from the mapref directly here as the getIShapeMap has both shape graphs and data maps mixed together
			   shapemap = ((IGraphOrganizer *)m_data)->getIShapeMap(&mifmap);
	      }
	      else { // error: undo!
		       graph->m_data_maps.removeMap(mapref);
	   	}
	   }
   }

	return shapemap;
}

 void addPrefix(char* startbuf, int n) {
     std::set<pstring>::iterator elem = pset.find(pstring(startbuf, n));
     bool replace = elem != pset.end() && n < elem->n;
     if (replace) {
         pset.erase(elem);
     }
     if (replace || elem == pset.end()) {
         pset.insert(pstring(startbuf, n));
     }
 }

pstring document::get_sheet_name(sheet_t sheet_pos) const
{
    if (sheet_pos < 0)
        return pstring();

    size_t pos = static_cast<size_t>(sheet_pos);
    if (pos >= mp_impl->m_sheets.size())
        return pstring();

    return mp_impl->m_sheets[pos].name;
}

double nl_convert_base_t::get_sp_unit(const pstring &unit)
{
	int i = 0;
	while (pstring(m_units[i].m_unit, pstring::UTF8) != "-")
	{
		if (pstring(m_units[i].m_unit, pstring::UTF8) == unit)
			return m_units[i].m_mult;
		i++;
	}
	fprintf(stderr, "Unit %s unknown\n", unit.c_str());
	return 0.0;
}

bool IAttributes::insertAttributeColumn(const char *attribute)
{
   if (strcmp(attribute,"Ref Number") != 0) {
      AttributeTable *table = (AttributeTable *)m_data;
      int n = table->getColumnIndex(pstring(attribute));
      if (n == -1 || !table->isColumnLocked(n)) {
         table->insertColumn(pstring(attribute));
         return true;
      }
   }
   return false;
}

double nl_convert_base_t::get_sp_unit(const pstring &unit)
{
	int i = 0;
	while (pstring(m_units[i].m_unit) != "-")
	{
		if (pstring(m_units[i].m_unit) == unit)
			return m_units[i].m_mult;
		i++;
	}
	plib::perrlogger("Unit {} unknown\n", unit);
	return 0.0;
}

IGraphFile *newGraphFile()
{
   IGraphFile *graphfile = NULL;
   MetaGraph *graph = new MetaGraph();
   // REMINDER: fill in some more details here:
	pstring version = "Sala.dll version";
	char tmpbuf[9];
	pstring date = pstring(_strdate(tmpbuf));
   graph->setProperties(pstring("Name"),pstring("Organisation"),pstring(date),pstring(version));
	graphfile = new IGraphFile();
	graphfile->setData(graph);
   // ensure the graph is labelled for deletion after use
   ((IGraphOrganizer *)graphfile->m_data)->setDeleteFlag();
   return graphfile;
}

opc_relations_context::opc_relations_context(session_context& session_cxt, const tokens &_tokens) :
    xml_context_base(session_cxt, _tokens)
{
    // build content type cache.
    for (schema_t* p = SCH_all; *p; ++p)
        m_schema_cache.insert(pstring(*p));
}

void sax_parser<_Handler,_Config>::cdata()
{
    size_t len = remains();
    assert(len > 3);

    // Parse until we reach ']]>'.
    const char* p0 = m_char;
    size_t i = 0, match = 0;
    for (char c = cur_char(); i < len; ++i, c = next_char())
    {
        if (c == ']')
        {
            // Be aware that we may encounter a series of more than two ']'
            // characters, in which case we'll only count the last two.

            if (match == 0)
                // First ']'
                ++match;
            else if (match == 1)
                // Second ']'
                ++match;
        }
        else if (c == '>' && match == 2)
        {
            // Found ']]>'.
            size_t cdata_len = i - 2;
            m_handler.characters(pstring(p0, cdata_len), false);
            next();
            return;
        }
        else
            match = 0;
    }
    throw sax::malformed_xml_error("malformed CDATA section.");
}

bool parser_base::value(pstring& str, bool decode)
{
    char c = cur_char();
    if (c != '"')
        throw malformed_xml_error("value must be quoted");

    c = next_char_checked();
    size_t first = m_pos;
    const char* p0 = m_char;

    for (; c != '"'; c = next_char_checked())
    {
        if (decode && c == '&')
        {
            // This value contains one or more encoded characters.
            cell_buffer& buf = get_cell_buffer();
            buf.reset();
            buf.append(p0, m_pos-first);
            value_with_encoded_char(buf, str);
            return true;
        }
    }

    str = pstring(p0, m_pos-first);

    // Skip the closing quote.
    next();

    return false;
}

pstring pstring::sprintf(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	pstring ret = pstring(format).vprintf(ap);
	va_end(ap);
	return ret;
}

pstring pstring::vprintf(va_list args) const
{
	// sprintf into the temporary buffer
	char tempbuf[4096];
	vsprintf(tempbuf, cstr(), args);

	return pstring(tempbuf);
}

// get an attribute from the attribute table for the current point:
float IAttributes::getAttribute(int id, const char *attribute)
{
   AttributeTable& table = *((AttributeTable *)m_data);
   int index = (m_analysis_type != DLL_VGA_ANALYSIS) ? id : table.getRowid(id); // vga needs to look up rowid, all others use rowid directly
   if (index == -1) {
      return -1.0f;
   }
   return table.getValue(index,pstring(attribute));
}