// input: text after "Plural-Forms:" (e.g. "nplurals=2; plural=(n != 1);"),
// if s == 0, creates default handler
// returns 0 if error
public static PluralFormsCalculator Make(string str)
{
PluralFormsCalculator calculator = new PluralFormsCalculator();
if (str != null)
{
PluralFormsScanner scanner = new PluralFormsScanner(str);
PluralFormsParser p = new PluralFormsParser(scanner);
if (!p.Parse(calculator))
{
return(null);
}
}
return(calculator);
}
public bool Parse(PluralFormsCalculator calculator)
{
if (Token.TokenType != PluralFormsToken.Type.Nplurals)
{
return(false);
}
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Assign)
{
return(false);
}
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Number)
{
return(false);
}
int nplurals = Token.Number;
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Semicolon)
{
return(false);
}
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Plural)
{
return(false);
}
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Assign)
{
return(false);
}
if (!NextToken())
{
return(false);
}
PluralFormsNode plural = ParsePlural();
if (plural == null)
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Semicolon)
{
return(false);
}
if (!NextToken())
{
return(false);
}
if (Token.TokenType != PluralFormsToken.Type.Eof)
{
return(false);
}
calculator.Init(nplurals, plural);
return(true);
}
public bool Parse (PluralFormsCalculator calculator)
{
if (Token.TokenType != PluralFormsToken.Type.Nplurals)
return false;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Assign)
return false;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Number)
return false;
int nplurals = Token.Number;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Semicolon)
return false;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Plural)
return false;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Assign)
return false;
if (! NextToken ())
return false;
PluralFormsNode plural = ParsePlural ();
if (plural == null)
return false;
if (Token.TokenType != PluralFormsToken.Type.Semicolon)
return false;
if (! NextToken ())
return false;
if (Token.TokenType != PluralFormsToken.Type.Eof)
return false;
calculator.Init (nplurals, plural);
return true;
}
// input: text after "Plural-Forms:" (e.g. "nplurals=2; plural=(n != 1);"),
// if s == 0, creates default handler
// returns 0 if error
public static PluralFormsCalculator Make (string str)
{
PluralFormsCalculator calculator = new PluralFormsCalculator ();
if (str != null)
{
PluralFormsScanner scanner = new PluralFormsScanner (str);
PluralFormsParser p = new PluralFormsParser (scanner);
if (!p.Parse (calculator))
{
return null;
}
}
return calculator;
}
