|
public TryGetNumericValue ( |
||
| token | ||
| value | int | |
| return | bool | |
public static bool TryParse (string input, out RangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer (input);
var t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
var value = new RangeHeaderValue ();
value.unit = lexer.GetStringValue (t);
t = lexer.Scan ();
if (t != Token.Type.SeparatorEqual)
return false;
bool token_read;
do {
int? from = null, to = null;
int number;
token_read = false;
t = lexer.Scan ();
switch (t.Kind) {
case Token.Type.SeparatorDash:
t = lexer.Scan ();
if (!lexer.TryGetNumericValue (t, out number))
return false;
to = number;
break;
case Token.Type.Token:
string s = lexer.GetStringValue (t);
var values = s.Split (new [] { '-' }, StringSplitOptions.RemoveEmptyEntries);
if (!int.TryParse (values[0], out number))
return false;
switch (values.Length) {
case 1:
t = lexer.Scan ();
switch (t.Kind) {
case Token.Type.SeparatorDash:
from = number;
t = lexer.Scan ();
if (t != Token.Type.Token) {
token_read = true;
break;
}
if (!lexer.TryGetNumericValue (t, out number))
return false;
to = number;
if (to < from)
return false;
break;
default:
return false;
}
break;
case 2:
from = number;
if (!int.TryParse (values[1], out number))
return false;
to = number;
if (to < from)
return false;
break;
default:
return false;
}
break;
default:
return false;
}
value.Ranges.Add (new RangeItemHeaderValue (from, to));
if (!token_read)
t = lexer.Scan ();
} while (t == Token.Type.SeparatorComma);
if (t != Token.Type.End)
return false;
parsedValue = value;
return true;
}
public static bool TryParse(string input, out RangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer(input);
var t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
var value = new RangeHeaderValue();
value.unit = lexer.GetStringValue(t);
t = lexer.Scan();
if (t != Token.Type.SeparatorEqual)
{
return(false);
}
bool token_read;
do
{
int?from = null, to = null;
int number;
token_read = false;
t = lexer.Scan();
switch (t.Kind)
{
case Token.Type.SeparatorDash:
t = lexer.Scan();
if (!lexer.TryGetNumericValue(t, out number))
{
return(false);
}
to = number;
break;
case Token.Type.Token:
string s = lexer.GetStringValue(t);
var values = s.Split(new [] { '-' }, StringSplitOptions.RemoveEmptyEntries);
if (!int.TryParse(values[0], out number))
{
return(false);
}
switch (values.Length)
{
case 1:
t = lexer.Scan();
from = number;
switch (t.Kind)
{
case Token.Type.SeparatorDash:
t = lexer.Scan();
if (t != Token.Type.Token)
{
token_read = true;
break;
}
if (!lexer.TryGetNumericValue(t, out number))
{
return(false);
}
to = number;
if (to < from)
{
return(false);
}
break;
case Token.Type.End:
if (s.Length > 0 && s [s.Length - 1] != '-')
{
return(false);
}
token_read = true;
break;
case Token.Type.SeparatorComma:
token_read = true;
break;
default:
return(false);
}
break;
case 2:
from = number;
if (!int.TryParse(values[1], out number))
{
return(false);
}
to = number;
if (to < from)
{
return(false);
}
break;
default:
return(false);
}
break;
default:
return(false);
}
value.Ranges.Add(new RangeItemHeaderValue(from, to));
if (!token_read)
{
t = lexer.Scan();
}
} while (t == Token.Type.SeparatorComma);
if (t != Token.Type.End)
{
return(false);
}
parsedValue = value;
return(true);
}
public static bool TryParse (string input, out ContentRangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer (input);
var t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
var value = new ContentRangeHeaderValue ();
value.unit = lexer.GetStringValue (t);
t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
int nvalue;
if (!lexer.IsStarStringValue (t)) {
if (!lexer.TryGetNumericValue (t, out nvalue)) {
var s = lexer.GetStringValue (t);
if (s.Length < 3)
return false;
var sep = s.Split ('-');
if (sep.Length != 2)
return false;
if (!int.TryParse (sep[0], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
return false;
value.From = nvalue;
if (!int.TryParse (sep[1], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
return false;
value.To = nvalue;
} else {
value.From = nvalue;
t = lexer.Scan (recognizeDash: true);
if (t != Token.Type.SeparatorDash)
return false;
t = lexer.Scan ();
if (!lexer.TryGetNumericValue (t, out nvalue))
return false;
value.To = nvalue;
}
}
t = lexer.Scan ();
if (t != Token.Type.SeparatorSlash)
return false;
t = lexer.Scan ();
if (!lexer.IsStarStringValue (t)) {
long lvalue;
if (!lexer.TryGetNumericValue (t, out lvalue))
return false;
value.Length = lvalue;
}
t = lexer.Scan ();
if (t != Token.Type.End)
return false;
parsedValue = value;
return true;
}
public static bool TryParse(string input, out ContentRangeHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer(input);
var t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
var value = new ContentRangeHeaderValue();
value.unit = lexer.GetStringValue(t);
t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
int nvalue;
if (!lexer.IsStarStringValue(t))
{
if (!lexer.TryGetNumericValue(t, out nvalue))
{
var s = lexer.GetStringValue(t);
if (s.Length < 3)
{
return(false);
}
var sep = s.Split('-');
if (sep.Length != 2)
{
return(false);
}
if (!int.TryParse(sep[0], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
{
return(false);
}
value.From = nvalue;
if (!int.TryParse(sep[1], NumberStyles.None, CultureInfo.InvariantCulture, out nvalue))
{
return(false);
}
value.To = nvalue;
}
else
{
value.From = nvalue;
t = lexer.Scan();
if (t != Token.Type.SeparatorDash)
{
return(false);
}
t = lexer.Scan();
if (!lexer.TryGetNumericValue(t, out nvalue))
{
return(false);
}
value.To = nvalue;
}
}
t = lexer.Scan();
if (t != Token.Type.SeparatorSlash)
{
return(false);
}
t = lexer.Scan();
if (!lexer.IsStarStringValue(t))
{
if (!lexer.TryGetNumericValue(t, out nvalue))
{
return(false);
}
value.Length = nvalue;
}
t = lexer.Scan();
if (t != Token.Type.End)
{
return(false);
}
parsedValue = value;
return(true);
}
public static bool TryParse (string input, out WarningHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer (input);
var t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
int code;
if (!lexer.TryGetNumericValue (t, out code) || !IsCodeValid (code))
return false;
t = lexer.Scan ();
if (t != Token.Type.Token)
return false;
var next = t;
if (lexer.PeekChar () == ':') {
lexer.EatChar ();
next = lexer.Scan ();
if (next != Token.Type.Token)
return false;
}
var value = new WarningHeaderValue ();
value.Code = code;
value.Agent = lexer.GetStringValue (t, next);
t = lexer.Scan ();
if (t != Token.Type.QuotedString)
return false;
value.Text = lexer.GetStringValue (t);
t = lexer.Scan ();
if (t == Token.Type.QuotedString) {
DateTimeOffset date;
if (!lexer.TryGetDateValue (t, out date))
return false;
value.Date = date;
t = lexer.Scan ();
}
if (t != Token.Type.End)
return false;
parsedValue = value;
return true;
}
public static bool TryParse(string input, out WarningHeaderValue parsedValue)
{
parsedValue = null;
var lexer = new Lexer(input);
var t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
int code;
if (!lexer.TryGetNumericValue(t, out code) || !IsCodeValid(code))
{
return(false);
}
t = lexer.Scan();
if (t != Token.Type.Token)
{
return(false);
}
var next = t;
if (lexer.PeekChar() == ':')
{
lexer.EatChar();
next = lexer.Scan();
if (next != Token.Type.Token)
{
return(false);
}
}
var value = new WarningHeaderValue();
value.Code = code;
value.Agent = lexer.GetStringValue(t, next);
t = lexer.Scan();
if (t != Token.Type.QuotedString)
{
return(false);
}
value.Text = lexer.GetStringValue(t);
t = lexer.Scan();
if (t == Token.Type.QuotedString)
{
DateTimeOffset date;
if (!lexer.TryGetDateValue(t, out date))
{
return(false);
}
value.Date = date;
t = lexer.Scan();
}
if (t != Token.Type.End)
{
return(false);
}
parsedValue = value;
return(true);
}