keywords.Add ("integer", Token.INTEGER);
keywords.Add ("interface", Token.INTERFACE);
keywords.Add ("is", Token.IS);
- keywords.Add ("let ", Token.LET ); // An unused VB.NET keyword
- keywords.Add ("lib ", Token.LIB );
- keywords.Add ("like ", Token.LIKE );
+ keywords.Add ("let", Token.LET ); // An unused VB.NET keyword
+ keywords.Add ("lib", Token.LIB );
+ keywords.Add ("like", Token.LIKE );
keywords.Add ("long", Token.LONG);
keywords.Add ("loop", Token.LOOP);
keywords.Add ("me", Token.ME);
if(tokens_seen)
{
if (cant_have_a_type_character)
- return ExtractDateTimeLiteral();
+ return ParseDateLiteral();
else
return Token.NUMBER_SIGN;
}
{
return (c == ' ' || c == '\t' || c == '\v' || c == '\r' || c == 0xa0);
}
+
+ private void GobbleWhiteSpaces ()
+ {
+ int d = peekChar ();
+ while (is_whitespace (d)) {
+ getChar ();
+ d = peekChar ();
+ }
+
+ }
private bool tokens_seen = false;
return Token.EOF;
}
- private int ExtractDateTimeLiteral()
+ private int ParseDateLiteral ()
{
- int c;
+ int c, d;
+ object temp;
+ int month = 1, day = 1, year = 1, hours = 0, minutes = 0, seconds = 0, date_separator;
+ bool minutes_specified = false, seconds_specified = false;
+ bool am_specified = false, pm_specified = false;
- StringBuilder sb = new StringBuilder();
- for (;(c = getChar ()) != -1; col++)
- {
- if (c == '#') {
- val = ParseDateLiteral(sb);
- return Token.LITERAL_DATE;
+
+ GobbleWhiteSpaces ();
+ d = peekChar ();
+ if (d == '#')
+ goto parse_error;
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+
+ d = peekChar ();
+ if (d == '/' || d == '-') {
+ c = getChar ();
+ date_separator = c;
+
+ month = (int) temp;
+ // Console.WriteLine ("Month: " + month);
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+ day = (int) temp;
+ // Console.WriteLine ("Day: " + day);
+
+ c = getChar ();
+ if (c != date_separator)
+ goto parse_error;
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+ year = (int) temp;
+ // Console.WriteLine ("Year: " + year);
+
+ GobbleWhiteSpaces ();
+ d = peekChar ();
+ if (d == '#') {
+ c = getChar ();
+ goto parse_done;
}
- if (IsEOL(c)) {
- break;
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+ d = peekChar ();
+ }
+
+ hours = (int) temp;
+ // Console.WriteLine ("Hours: " + hours);
+
+ if (d == ':') {
+ c = getChar ();
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+ minutes = (int) temp;
+ // Console.WriteLine ("Minutes: " + minutes);
+ minutes_specified = true;
+
+ d = peekChar ();
+ if (d == ':') {
+ c = getChar ();
+
+ temp = ParseIntLiteral ();
+ if (temp == null)
+ goto parse_error;
+ seconds = (int) temp;
+ // Console.WriteLine ("Seconds: " + seconds);
+ seconds_specified = true;
}
- if (c == '-')
- c = '/';
- sb.Append((char)c);
}
+
+
+ GobbleWhiteSpaces ();
+ d = peekChar ();
+ if (d == 'A' ) {
+ c = getChar ();
+
+ d = peekChar ();
+ if (d != 'M')
+ goto parse_error;
+
+ c = getChar ();
+ // Console.WriteLine ("AM");
+ am_specified = true;
+ } else if (d == 'P' ) {
+ c = getChar ();
+
+ d = peekChar ();
+ if (d != 'M')
+ goto parse_error;
+
+ c = getChar ();
+ // Console.WriteLine ("PM");
+ pm_specified = true;
+ }
+
+ GobbleWhiteSpaces ();
+
+ d = peekChar ();
+ if (d == '#') {
+ c = getChar ();
+ if (!minutes_specified && !seconds_specified && !am_specified && ! pm_specified)
+ goto parse_error;
+
+ if ((am_specified || pm_specified) && hours > 12)
+ goto parse_error;
+
+ if (pm_specified)
+ hours += 12;
+
+ goto parse_done;
+ }
+
+ parse_error:
+ // Console.WriteLine ("Parse Error");
return Token.ERROR;
+
+ parse_done:
+ try {
+ temp = new DateTime (year, month, day, hours, minutes, seconds);
+ } catch (Exception ex) {
+ // Console.WriteLine (ex);
+ return Token.ERROR;
+ }
+
+ // Console.WriteLine ("Success");
+ val =temp;
+ return Token.LITERAL_DATE;
}
private int ExtractStringOrCharLiteral(int c)
return Token.ERROR;
}
- static IFormatProvider enUSculture = new CultureInfo("en-US", true);
-
- private DateTime ParseDateLiteral(StringBuilder value)
+ private object ParseIntLiteral ()
{
- try
- {
- return DateTime.Parse(value.ToString(),
- enUSculture,
- DateTimeStyles.NoCurrentDateDefault | DateTimeStyles.AllowWhiteSpaces);
- }
- catch (FormatException ex)
- {
- //TODO: What is the correct error number and message?
- Report.Error (1, Location, string.Format("Invalid date literal '{0}'", value.ToString())
- + Environment.NewLine + ex.ToString());
- }
- catch (Exception)
- {
- Report.Error (1, Location, "Error parsing date literal"); //TODO: What is the correct error number and message?
- }
- return new DateTime();
+ object retval;
+
+ int d = peekChar ();
+
+ if (!Char.IsDigit ((char) d))
+ return null;
+
+ int c = getChar ();
+ number = new StringBuilder ();
+ decimal_digits (c);
+
+ try {
+ retval = System.Int32.Parse (number.ToString ());
+ } catch (Exception ex) {
+ return null;
+ }
+
+ return retval;
}
public void PositionCursorAtNextPreProcessorDirective()
projects / mono.git / blobdiff