internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context)
{
HebrewNumber.HebrewToken hebrewToken;
if ((int)ch == 39)
{
hebrewToken = HebrewNumber.HebrewToken.SingleQuote;
}
else if ((int)ch == 34)
{
hebrewToken = HebrewNumber.HebrewToken.DoubleQuote;
}
else
{
int index = (int)ch - 1488;
if (index < 0 || index >= HebrewNumber.HebrewValues.Length)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
hebrewToken = HebrewNumber.HebrewValues[index].token;
if (hebrewToken == HebrewNumber.HebrewToken.Invalid)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
context.result += HebrewNumber.HebrewValues[index].value;
}
context.state = HebrewNumber.NumberPasingState[(int)context.state][(int)hebrewToken];
if (context.state == HebrewNumber.HS._err)
{
return(HebrewNumberParsingState.InvalidHebrewNumber);
}
return(context.state == HebrewNumber.HS.END ? HebrewNumberParsingState.FoundEndOfHebrewNumber : HebrewNumberParsingState.ContinueParsing);
}
////////////////////////////////////////////////////////////////////////
//
// Actions:
// Parse the Hebrew number by passing one character at a time.
// The state between characters are maintained at HebrewNumberPasingContext.
// Returns:
// Return a enum of HebrewNumberParsingState.
// NotHebrewDigit: The specified ch is not a valid Hebrew digit.
// InvalidHebrewNumber: After parsing the specified ch, it will lead into
// an invalid Hebrew number text.
// FoundEndOfHebrewNumber: A terminal state is reached. This means that
// we find a valid Hebrew number text after the specified ch is parsed.
// ContinueParsing: The specified ch is a valid Hebrew digit, and
// it will lead into a valid state in the state machine, we should
// continue to parse incoming characters.
//
////////////////////////////////////////////////////////////////////////
internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context)
{
Debug.Assert(s_numberPasingState.Length == HebrewTokenCount * ((int)HS.S9_DQ + 1));
HebrewToken token;
if (ch == '\'')
{
token = HebrewToken.SingleQuote;
}
else if (ch == '\"')
{
token = HebrewToken.DoubleQuote;
}
else
{
int index = (int)ch - minHebrewNumberCh;
if (index >= 0 && index < s_hebrewValues.Length)
{
token = s_hebrewValues[index].token;
if (token == HebrewToken.Invalid)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
context.result += s_hebrewValues[index].value;
}
else
{
// Not in valid Hebrew digit range.
return(HebrewNumberParsingState.NotHebrewDigit);
}
}
context.state = s_numberPasingState[(int)context.state * (int)HebrewTokenCount + (int)token];
if (context.state == HS._err)
{
// Invalid Hebrew state. This indicates an incorrect Hebrew number.
return(HebrewNumberParsingState.InvalidHebrewNumber);
}
if (context.state == HS.END)
{
// Reach a terminal state.
return(HebrewNumberParsingState.FoundEndOfHebrewNumber);
}
// We should continue to parse.
return(HebrewNumberParsingState.ContinueParsing);
}
internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context)
{
HebrewToken singleQuote;
if (ch == '\'')
{
singleQuote = HebrewToken.SingleQuote;
}
else if (ch == '"')
{
singleQuote = HebrewToken.DoubleQuote;
}
else
{
int index = ch - 'א';
if ((index < 0) || (index >= HebrewValues.Length))
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
singleQuote = HebrewValues[index].token;
if (singleQuote == HebrewToken.Invalid)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
context.result += HebrewValues[index].value;
}
context.state = NumberPasingState[(int)context.state][(int)singleQuote];
if (context.state == HS._err)
{
return(HebrewNumberParsingState.InvalidHebrewNumber);
}
if (context.state == HS.END)
{
return(HebrewNumberParsingState.FoundEndOfHebrewNumber);
}
return(HebrewNumberParsingState.ContinueParsing);
}
// Token: 0x060031BF RID: 12735 RVA: 0x000BFA7C File Offset: 0x000BDC7C
internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context)
{
HebrewNumber.HebrewToken hebrewToken;
if (ch == '\'')
{
hebrewToken = HebrewNumber.HebrewToken.SingleQuote;
}
else if (ch == '"')
{
hebrewToken = HebrewNumber.HebrewToken.DoubleQuote;
}
else
{
int num = (int)(ch - 'א');
if (num < 0 || num >= HebrewNumber.HebrewValues.Length)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
hebrewToken = HebrewNumber.HebrewValues[num].token;
if (hebrewToken == HebrewNumber.HebrewToken.Invalid)
{
return(HebrewNumberParsingState.NotHebrewDigit);
}
context.result += HebrewNumber.HebrewValues[num].value;
}
context.state = HebrewNumber.NumberPasingState[(int)context.state][(int)hebrewToken];
if (context.state == HebrewNumber.HS._err)
{
return(HebrewNumberParsingState.InvalidHebrewNumber);
}
if (context.state == HebrewNumber.HS.END)
{
return(HebrewNumberParsingState.FoundEndOfHebrewNumber);
}
return(HebrewNumberParsingState.ContinueParsing);
}
internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context)
{
HebrewToken singleQuote;
if (ch == '\'')
{
singleQuote = HebrewToken.SingleQuote;
}
else if (ch == '"')
{
singleQuote = HebrewToken.DoubleQuote;
}
else
{
int index = ch - 'א';
if ((index < 0) || (index >= HebrewValues.Length))
{
return HebrewNumberParsingState.NotHebrewDigit;
}
singleQuote = HebrewValues[index].token;
if (singleQuote == HebrewToken.Invalid)
{
return HebrewNumberParsingState.NotHebrewDigit;
}
context.result += HebrewValues[index].value;
}
context.state = NumberPasingState[(int) context.state][(int) singleQuote];
if (context.state == HS._err)
{
return HebrewNumberParsingState.InvalidHebrewNumber;
}
if (context.state == HS.END)
{
return HebrewNumberParsingState.FoundEndOfHebrewNumber;
}
return HebrewNumberParsingState.ContinueParsing;
}
////////////////////////////////////////////////////////////////////////
//
// Actions:
// Try to parse the current word to see if it is a Hebrew number.
// Tokens will be updated accordingly.
// This is called by the Lexer of DateTime.Parse().
//
// Unlike most of the functions in this class, the return value indicates
// whether or not it started to parse. The badFormat parameter indicates
// if parsing began, but the format was bad.
//
////////////////////////////////////////////////////////////////////////
private static bool TryParseHebrewNumber(
ref __DTString str,
out Boolean badFormat,
out int number) {
number = -1;
badFormat = false;
int i = str.Index;
if (!HebrewNumber.IsDigit(str.Value[i])) {
// If the current character is not a Hebrew digit, just return false.
// There is no chance that we can parse a valid Hebrew number from here.
return (false);
}
// The current character is a Hebrew digit. Try to parse this word as a Hebrew number.
HebrewNumberParsingContext context = new HebrewNumberParsingContext(0);
HebrewNumberParsingState state;
do {
state = HebrewNumber.ParseByChar(str.Value[i++], ref context);
switch (state) {
case HebrewNumberParsingState.InvalidHebrewNumber: // Not a valid Hebrew number.
case HebrewNumberParsingState.NotHebrewDigit: // The current character is not a Hebrew digit character.
// Break out so that we don't continue to try parse this as a Hebrew number.
return (false);
}
} while (i < str.Value.Length && (state != HebrewNumberParsingState.FoundEndOfHebrewNumber));
// When we are here, we are either at the end of the string, or we find a valid Hebrew number.
Contract.Assert(state == HebrewNumberParsingState.ContinueParsing || state == HebrewNumberParsingState.FoundEndOfHebrewNumber,
"Invalid returned state from HebrewNumber.ParseByChar()");
if (state != HebrewNumberParsingState.FoundEndOfHebrewNumber) {
// We reach end of the string but we can't find a terminal state in parsing Hebrew number.
return (false);
}
// We have found a valid Hebrew number. Update the index.
str.Advance(i - str.Index);
// Get the final Hebrew number value from the HebrewNumberParsingContext.
number = context.result;
return (true);
}
internal static bool MatchHebrewDigits(ref __DTString str, int digitLen, out int number)
{
number = 0;
HebrewNumberParsingContext hebrewNumberParsingContext = new HebrewNumberParsingContext(0);
HebrewNumberParsingState hebrewNumberParsingState = HebrewNumberParsingState.ContinueParsing;
while (hebrewNumberParsingState == HebrewNumberParsingState.ContinueParsing && str.GetNext())
{
hebrewNumberParsingState = HebrewNumber.ParseByChar(str.GetChar(), ref hebrewNumberParsingContext);
}
if (hebrewNumberParsingState == HebrewNumberParsingState.FoundEndOfHebrewNumber)
{
number = hebrewNumberParsingContext.result;
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////
//
// Actions:
// Parse the current word as a Hebrew number.
// This is used by DateTime.ParseExact().
//
////////////////////////////////////////////////////////////////////////
internal static bool MatchHebrewDigits(ref __DTString str, int digitLen, out int number) {
number = 0;
// Create a context object so that we can parse the Hebrew number text character by character.
HebrewNumberParsingContext context = new HebrewNumberParsingContext(0);
// Set this to ContinueParsing so that we will run the following while loop in the first time.
HebrewNumberParsingState state = HebrewNumberParsingState.ContinueParsing;
while (state == HebrewNumberParsingState.ContinueParsing && str.GetNext()) {
state = HebrewNumber.ParseByChar(str.GetChar(), ref context);
}
if (state == HebrewNumberParsingState.FoundEndOfHebrewNumber) {
// If we have reached a terminal state, update the result and returns.
number = context.result;
return (true);
}
// If we run out of the character before reaching FoundEndOfHebrewNumber, or
// the state is InvalidHebrewNumber or ContinueParsing, we fail to match a Hebrew number.
// Return an error.
return false;
}
////////////////////////////////////////////////////////////////////////
//
// Actions:
// Parse the Hebrew number by passing one character at a time.
// The state between characters are maintained at HebrewNumberPasingContext.
// Returns:
// Return a enum of HebrewNumberParsingState.
// NotHebrewDigit: The specified ch is not a valid Hebrew digit.
// InvalidHebrewNumber: After parsing the specified ch, it will lead into
// an invalid Hebrew number text.
// FoundEndOfHebrewNumber: A terminal state is reached. This means that
// we find a valid Hebrew number text after the specified ch is parsed.
// ContinueParsing: The specified ch is a valid Hebrew digit, and
// it will lead into a valid state in the state machine, we should
// continue to parse incoming characters.
//
////////////////////////////////////////////////////////////////////////
internal static HebrewNumberParsingState ParseByChar(char ch, ref HebrewNumberParsingContext context) {
HebrewToken token;
if (ch == '\'') {
token = HebrewToken.SingleQuote;
} else if (ch == '\"') {
token = HebrewToken.DoubleQuote;
} else {
int index = (int)ch - minHebrewNumberCh;
if (index >= 0 && index < HebrewValues.Length ) {
token = HebrewValues[index].token;
if (token == HebrewToken.Invalid) {
return (HebrewNumberParsingState.NotHebrewDigit);
}
context.result += HebrewValues[index].value;
} else {
// Not in valid Hebrew digit range.
return (HebrewNumberParsingState.NotHebrewDigit);
}
}
context.state = NumberPasingState[(int)context.state][(int)token];
if (context.state == HS._err) {
// Invalid Hebrew state. This indicates an incorrect Hebrew number.
return (HebrewNumberParsingState.InvalidHebrewNumber);
}
if (context.state == HS.END) {
// Reach a terminal state.
return (HebrewNumberParsingState.FoundEndOfHebrewNumber);
}
// We should continue to parse.
return (HebrewNumberParsingState.ContinueParsing);
}
private static bool TryParseHebrewNumber(ref __DTString str, out bool badFormat, out int number)
{
number = -1;
badFormat = false;
int index = str.Index;
if (!HebrewNumber.IsDigit(str.Value[index]))
return false;
HebrewNumberParsingContext context = new HebrewNumberParsingContext(0);
HebrewNumberParsingState numberParsingState;
do
{
numberParsingState = HebrewNumber.ParseByChar(str.Value[index++], ref context);
switch (numberParsingState)
{
case HebrewNumberParsingState.InvalidHebrewNumber:
case HebrewNumberParsingState.NotHebrewDigit:
return false;
default:
continue;
}
}
while (index < str.Value.Length && numberParsingState != HebrewNumberParsingState.FoundEndOfHebrewNumber);
if (numberParsingState != HebrewNumberParsingState.FoundEndOfHebrewNumber)
return false;
str.Advance(index - str.Index);
number = context.result;
return true;
}