public virtual literal create_string_const(GPBParser parser)
{
literal lt;
string text = parser.LRParser.TokenString;
if (text.Length==3 && text[0]=='\'' && text[2]=='\'')
{
lt=new char_const(text[1]);
lt.source_context = GetTokenSourceContext(parser.LRParser);//create_source_context(token);
return lt;
}
text = ReplaceSpecialSymbols(text.Substring(1, text.Length - 2));
lt=new string_const(text);
lt.source_context = GetTokenSourceContext(parser.LRParser);//create_source_context(token);
return lt;
}
public GoldParser.Parser parser; // Ужас - два разных парсера! SSM 19.01.12
public virtual void check_comment_text(GPBParser parser)
{
}
public virtual const_node create_int_const(GPBParser parser, System.Globalization.NumberStyles NumberStyles)
{
//таблица целых констант на уровне синтаксиса
// не может быть - 0 +
// 32--------16----8----|----8----16--------32----------------64(bits)
// [ int64 )[ int32 ]( int64 ]( uint64 ]
string text = parser.LRParser.TokenString;
if (NumberStyles == System.Globalization.NumberStyles.HexNumber)
text = text.Substring(1);
const_node cn=new int32_const();
SourceContext sc = GetTokenSourceContext(parser.LRParser);//create_source_context(token);
if (text.Length < 8)
(cn as int32_const).val = Int32.Parse(text, NumberStyles);
else
{
try
{
UInt64 uint64 = UInt64.Parse(text, NumberStyles);
if (uint64 <= Int32.MaxValue)
(cn as int32_const).val = (Int32)uint64;
else
if (uint64 <= Int64.MaxValue)
cn = new int64_const((Int64)uint64);
else
cn = new uint64_const(uint64);
}
catch (Exception)
{
if(NumberStyles == System.Globalization.NumberStyles.HexNumber)
parser.errors.Add(new BadHex(parser.current_file_name, sc, (syntax_tree_node)parser.prev_node));
else
parser.errors.Add(new BadInt(parser.current_file_name, sc, (syntax_tree_node)parser.prev_node));
}
}
cn.source_context = sc;
return cn;
}
public virtual ident create_ident(GPBParser parser)
{
string text = parser.LRParser.TokenString;
if (text.IndexOf('&') == 0)
text = text.Substring(1);
ident id = new ident(text);
id.source_context = GetTokenSourceContext(parser.LRParser);
return id;
}
public virtual const_node create_hex_const(GPBParser parser)
{
return create_int_const(parser, System.Globalization.NumberStyles.HexNumber);
}
public virtual const_node create_double_const(GPBParser parser)
{
const_node cn=null;
SourceContext sc = GetTokenSourceContext(parser.LRParser);
try
{
System.Globalization.NumberFormatInfo sgnfi=new System.Globalization.NumberFormatInfo();
sgnfi.NumberDecimalSeparator=".";
double val=double.Parse(parser.LRParser.TokenString,sgnfi);
cn=new double_const(val);
cn.source_context=sc;
}
catch(Exception)
{
parser.errors.Add(new BadFloat(parser.current_file_name,sc,(syntax_tree_node)parser.prev_node));
}
return cn;
}
public virtual sharp_char_const create_sharp_char_const(GPBParser parser)
{
string text = parser.LRParser.TokenString;
string int_text = new string(text.ToCharArray(1, text.Length - 1));
SourceContext sc = GetTokenSourceContext(parser.LRParser);//create_source_context(token);
sharp_char_const scc = null;
int val = 0;
if (int.TryParse(int_text, out val))
{
if (val > max_char_const)
{
scc = new sharp_char_const(0);
parser.errors.Add(new TooBigCharNumberInSharpCharConstant(parser.current_file_name, sc, scc));
}
else
scc = new sharp_char_const(val);
scc.source_context = sc;
}
else
{
parser.errors.Add(new TooBigCharNumberInSharpCharConstant(parser.current_file_name, sc, scc));
}
return scc;
}
public virtual char_const create_char_const(GPBParser parser)
{
return create_char_const(parser.LRParser.TokenString,GetTokenSourceContext(parser.LRParser));
}
public virtual ident create_directive_name(GPBParser parser)
{
return create_directive_name(parser.LRParser.TokenString, GetTokenSourceContext(parser.LRParser));
}